KR20010063007A - Removal module for Electromagnetic waves - Google Patents

Removal module for Electromagnetic waves Download PDF

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Publication number
KR20010063007A
KR20010063007A KR1019990059804A KR19990059804A KR20010063007A KR 20010063007 A KR20010063007 A KR 20010063007A KR 1019990059804 A KR1019990059804 A KR 1019990059804A KR 19990059804 A KR19990059804 A KR 19990059804A KR 20010063007 A KR20010063007 A KR 20010063007A
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South Korea
Prior art keywords
electromagnetic wave
terminal
electronic devices
ground
electrical
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KR1019990059804A
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Korean (ko)
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박길홍
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박길홍
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Priority to KR1019990059804A priority Critical patent/KR20010063007A/en
Publication of KR20010063007A publication Critical patent/KR20010063007A/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/66Connections with the terrestrial mass, e.g. earth plate, earth pin
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/70Structural association with built-in electrical component with built-in switch

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  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

PURPOSE: An apparatus for removing an electromagnetic wave is provided to allow a user to easily know whether there is occurred an electromagnetic wave, and easily change a connected condition of power terminals according to whether there is occurred the electromagnetic wave. CONSTITUTION: A terminal part(31) includes the first power terminal(OUT1) and the second power terminal(OUT2) and a ground terminal(GND). The first and second power terminals connect electric and electronic equipments with an external power source. The first resistance(R1) is connected to the ground terminal on an end thereof. A capacitor(C) is connected to the first resistance(R1) in parallel. An electromagnetic wave removing part(32) includes the first resistance(R1) and the capacitor(C). A ground rod(34) is adapted to be contacted with a human body. A lamp and the second resistance(R2) are connected in series. An electromagnetic wave identifying part(33) includes the ground rod(34), the lamp and the second resistance(R2). The lamp is turned on when the ground rod(34) is contacted with the human body and there is generated an electromagnetic wave, such that generation of the electromagnetic wave is informed to a user.

Description

전자파 제거장치 {Removal module for Electromagnetic waves}Electromagnetic wave elimination device {Removal module for Electromagnetic waves}

본 발명은 전기 및 전자기기의 사용 중 발생되는 전자파를 용이하게 제거하기 위한 전자파 제거장치에 관한 것으로서, 더욱 상세하게는 건물의 접지선을 이용하여 전기 및 전자기기에서 발생되는 전자를 대지로 환원시킬 수 있는 전자파 제거장치에 관한 것이다.The present invention relates to an electromagnetic wave removal device for easily removing the electromagnetic waves generated during the use of electrical and electronic devices, and more particularly, it is possible to reduce the electrons generated in the electrical and electronic devices to the ground using the ground line of the building. The present invention relates to a device for removing electromagnetic waves.

일반적으로, 전자파는 전기 및 자기의 흐름에서 발생하는 광범위한 주파수 영역을 갖는 일종의 전자기 에너지를 말하는데, 전기가 흐르는 곳 어디에서나 발생하는 속성이 있기 때문에 전기를 사용하는 모든 기기에서 필연적으로 발생되며, 주파수가 높을수록 큰 파괴력을 갖는 것으로 알려져 있다. 특히, 전자파를 이루는 전계(electric field)와 자계(magnetic field) 중 자계는 인체에 악영향을 미칠 수 있는 것으로 알려져 있다.In general, electromagnetic waves are a kind of electromagnetic energy with a wide frequency range that occurs in the flow of electricity and magnetism. Because of the property that occurs anywhere where electricity flows, it is inevitable in all devices that use electricity. It is known that the higher it has a large breaking force. In particular, the magnetic field of the electric field (magnetic field) and magnetic field (magnetic field) forming the electromagnetic wave is known to adversely affect the human body.

최근의 연구결과에 따르면 자계에 인체가 장기간 노출될 경우에 인체내에 유도전류가 생성되어 세포막 내외에 존재하는 각종 이온의 불균형을 초래하고, 호르몬 분비 및 면역 세포에 영향을 주는 것으로 알려져 있다.According to the recent research results, when the human body is exposed to the magnetic field for a long time, an induced current is generated in the human body, causing an imbalance of various ions existing in and outside the cell membrane, and affecting hormone secretion and immune cells.

도 1은 일반적으로 전기 및 전자기기를 사용할 때 전자파가 발생되는 것을 설명하기 위한 도면이다.1 is a view for explaining that electromagnetic waves are generally generated when using electrical and electronic devices.

도 1을 참조하면, 벽면(11)에 매설된 콘센트(12)에 전기 및 전자기기(13)에 연결된 플러그(14)를 삽입 접속하고, 상기 전기 및 전자기기(13)가 구동되면 상기 전기 및 전자기기(13)에서는 전자 즉, 고주파가 발생하게 된다. 상기 발생된 고주파는 플러그 선을 따라 플러그(14) 쪽으로 흐르게 되는데, 상기 플러그 선이 안테나 역할을 하게 되어 전자파(15)가 방사된다.Referring to FIG. 1, a plug 14 connected to an electric and electronic device 13 is inserted into and connected to an outlet 12 embedded in a wall 11, and when the electric and electronic device 13 is driven, the electric and In the electronic device 13, electrons, that is, high frequency, are generated. The generated high frequency flows toward the plug 14 along the plug wire, and the plug wire acts as an antenna to radiate the electromagnetic wave 15.

상기와 같이 방사된 전자파(15)는 인체 및 전자기기의 각 소자와 반응하여 악영향을 미칠 수 있게 된다.The electromagnetic wave 15 emitted as described above may adversely affect the human body and each element of the electronic device.

최근, 가정 및 사무실에서는 220V의 전원을 사용할 수 있는 콘센트(12)가 설치되고 있는데, 여기에는 도 2에 도시된 바와 같이 제1,2 전원단자(21,22) 및 건물의 대지와 연결되는 대지접지단(23)이 구비되어 있다.In recent years, homes and offices have installed outlets 12 that can use a 220V power source, which is connected to the ground of the first and second power terminals 21 and 22 and the building as shown in FIG. The ground terminal 23 is provided.

따라서, 상기 전기 및 전자기기(13)에서 발생된 전자를 상기 대지접지단(23)을 통해 대지로 환원시킴으로써 전자파의 발생을 제거하고자 하는 연구가 계속되고 있다.Therefore, the research to remove the generation of electromagnetic waves by reducing the electrons generated in the electrical and electronic device 13 to the ground through the earth ground terminal 23 continues.

종래의 경우, 상기 제1,2 전원단자(21,22) 중 전자가 발생되는 단자를 상기 대지접지단(23)으로 연결시키는 장치가 소개되고 있는데, 전계 측정용 장치를 이용하여 전자가 발생되는 단자를 확인하고, 그에 따라 상기 제1,2 전원단자(21,22)의 연결상태를 변경하는 방법을 사용하고 있다.In the related art, an apparatus for connecting an electron-generated terminal of the first and second power terminals 21 and 22 to the earth ground terminal 23 is introduced, and an electron is generated using an electric field measuring device. A method of identifying a terminal and changing the connection state of the first and second power terminals 21 and 22 is used accordingly.

그러나, 상기와 같은 종래 기술에서는 각 전원단자의 연결상태를 알기 위해서는 고가의 전계 측정용 장치를 이용하여야 하고, 상기 전계 측정용 장치를 통해 전자파가 감지되면 전원단자의 연결상태를 변경하여 전자파의 발생을 없애야 하기 때문에 사용상의 불편함이 발생되는 문제점이 있다.However, in the prior art as described above, in order to know the connection state of each power supply terminal, an expensive electric field measurement device should be used, and when electromagnetic waves are detected through the electric field measurement device, the connection state of the power supply terminal is changed to generate electromagnetic waves. Since there is a problem in that inconvenience caused to use.

또한, 종래의 기술에서는 상기 전계 측정용 장치가 없는 경우에는 전자파의 발생여부를 확인할 수 없어서 전자파를 용이하게 제거할 수 있는 방법이 없기 때문에 인체가 전자파에 무방비 상태로 노출되는 문제점이 발생한다.In addition, in the prior art, if there is no device for measuring an electric field, there is a problem in that the human body is exposed to electromagnetic waves without defense because there is no method of easily removing electromagnetic waves.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 그 목적은 현재 전기 및 전자기기에서 전자파가 발생되고 있는지를 확인할 수 있는 회로를 구비함으로써 사용자가 용이하게 전자파의 발생여부를 확인할 수 있도록 하는 전자파 제거장치를 제공하는데 있다.The present invention has been made to solve the above problems, the object of the present invention is to provide a circuit that can check whether the electromagnetic wave is generated in the current electrical and electronic devices so that the user can easily determine whether the electromagnetic wave is generated An electromagnetic wave removing device is provided.

또한, 본 발명의 다른 목적은 제1,2 전원단자와 대지접지단 사이에 스위칭부를 연결함으로써 전자파의 발생에 따라 전원단자의 연결상태를 용이하게 변경할 수 있도록 하는 전자파 제거장치를 제공하는데 있다.In addition, another object of the present invention is to provide an electromagnetic wave removing device that can easily change the connection state of the power supply terminal according to the generation of electromagnetic waves by connecting the switching unit between the first and second power supply terminals and the ground ground terminal.

도 1은 일반적으로 전기 및 전자기기를 사용할 때 전자파가 발생되는 것을 설명하기 위한 도면,1 is a view for explaining that electromagnetic waves are generally generated when using electrical and electronic devices,

도 2는 일반적인 콘센트에서의 단자 구성을 나타내는 도면,2 is a view showing a terminal configuration in a typical outlet;

도 3은 본 발명에 의한 전자파 제거장치의 구성을 나타내는 회로도,3 is a circuit diagram showing a configuration of an electromagnetic wave removing device according to the present invention;

도 4는 본 발명에 의한 전자파 제거장치의 형태를 나타내는 입체도.Figure 4 is a three-dimensional view showing the form of the electromagnetic wave removing device according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

31 : 단자부 32 : 전자파 제거부31 terminal portion 32 electromagnetic wave removing portion

33 : 전자파 발생여부 확인부 34 : 접지봉33: Check whether the electromagnetic wave generation 34: Grounding rod

35 : 스위칭부35: switching unit

OUT1, OUT2 : 제1,2 전원단자 GND : 대지접지단OUT1, OUT2: 1st, 2nd power terminal GND: Earth ground terminal

R1 : 제1 저항 R2 : 제2 저항R1: first resistor R2: second resistor

C : 커패시터 LAMP : 램프C: Capacitor LAMP: Lamp

상기와 같은 목적을 달성하기 위한 본 발명의 주된 특징에 따르면, 외부전원과 전기 및 전자기기의 사이에 연결되어 상기 전기 및 전자기기에서 발생되는 전자를 대지접지단으로 환원하는 경로를 제공하는 전자파 제거장치에 있어서;According to a main feature of the present invention for achieving the above object, the electromagnetic wave removal that is connected between the external power source and the electrical and electronic devices to provide a path for reducing the electrons generated in the electrical and electronic devices to the earth ground terminal In an apparatus;

상기 외부전원과 전기 및 전자기기를 연결하는 제1,2 전원단자 및 대지접지단을 구비한 단자부와, 상기 대지접지단에 일단이 연결된 제1 저항과, 상기 제1 저항에 병렬접속되는 커패시터와, 상기 제1 저항의 타단과 접지봉의 사이에 연결되고 서로 직렬접속되는 램프 및 제2 저항과, 상기 단자부의 제1,2 전원단자 중 어느 하나를 선택하여 상기 제1 저항의 타단으로 연결하는 스위칭부를 포함하여 구성된 전자파 제거장치를 제공한다.A terminal unit having first and second power terminals and an earth ground terminal for connecting the external power source to an electric and electronic device, a first resistor having one end connected to the earth ground terminal, and a capacitor connected in parallel to the first resistor; And a lamp and a second resistor connected between the other end of the first resistor and the ground rod and connected in series with each other, and a switch configured to select any one of the first and second power terminals of the terminal to connect the other end of the first resistor. It provides an electromagnetic wave elimination device configured to include.

이때, 본 발명의 부가적인 특징에 따르면, 다수의 전기 및 전자기기에서 발생되는 전자파를 동시에 제거하기 위하여 상기 다수의 전기 및 전자기기에 각각 연결되고 서로 직렬접속되는 다수의 단자부를 구비하는 것이 바람직하다.At this time, according to an additional feature of the present invention, it is preferable to include a plurality of terminal portions connected to each of the plurality of electrical and electronic devices and connected in series to each other in order to simultaneously remove electromagnetic waves generated in the plurality of electrical and electronic devices. .

또한, 본 발명의 다른 부가적인 특징에 따르면, 상기 램프는 인체가 접지봉에 접촉되고, 상기 스위칭부가 제1,2 전원단자 중 전자를 발생시키는 전원단자에 연결된 경우에 점등되어 전자파의 발생을 사용자에게 알려주는 것이 바람직하다.In addition, according to another additional feature of the present invention, the lamp is turned on when the human body is in contact with the ground rod, and the switching unit is connected to a power terminal for generating electrons of the first and second power terminals to generate the electromagnetic wave to the user It is desirable to inform.

이하, 본 발명의 바람직한 실시 예를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명에 의한 전자파 제거장치의 구성을 나타내는 회로도이다.3 is a circuit diagram showing the configuration of the electromagnetic wave removing device according to the present invention.

도 3을 참조하면, 단자부(31)는 외부전원과 전기 및 전자기기를 연결하는 제1,2 전원단자(OUT1, OUT2) 및 대지접지단(GND)을 구비한다. 또한, 전자파 제거부(32)는 상기 대지접지단(GND)에 일단이 연결된 제1 저항(R1)과, 상기 제1 저항(R1)에 병렬접속되는 커패시터(C)를 구비한다.Referring to FIG. 3, the terminal unit 31 includes first and second power terminals OUT1 and OUT2 and a ground ground terminal GND for connecting an external power source to electric and electronic devices. In addition, the electromagnetic wave removing unit 32 includes a first resistor R1 having one end connected to the ground ground terminal GND, and a capacitor C connected in parallel with the first resistor R1.

또한, 전자파 발생여부 확인부(33)는 인체와 접촉가능하도록 설치된 접지봉(34)과, 서로 직렬접속된 램프(LAMP) 및 제2 저항(R2)을 구비한다. 이때, 상기 램프(LAMP)는 인체가 상기 접지봉(34)에 접촉되고, 전자파가 발생되는 경우에 점등되어 전자파의 발생을 사용자에게 알려주는 역할을 수행하게 된다.In addition, the electromagnetic wave generation check unit 33 includes a ground rod 34 installed to be in contact with the human body, a lamp LAMP and a second resistor R2 connected in series with each other. In this case, the lamp LAMP is turned on when the human body is in contact with the ground rod 34 and generates electromagnetic waves, thereby serving to inform the user of the generation of electromagnetic waves.

또한, 스위칭부(35)는 상기 단자부(31)의 제1,2 전원단자(OUT1, OUT2) 중 어느 하나를 선택하여 상기 전자파 제거부(32)의 제1 저항(R1)으로 연결하는 슬라이드 스위치를 구비한다.In addition, the switching unit 35 selects any one of the first and second power terminals OUT1 and OUT2 of the terminal unit 31 and connects the slide switch to the first resistor R1 of the electromagnetic wave removing unit 32. It is provided.

이때, 다수의 전기 및 전자기기에서 발생되는 전자파를 동시에 제거하기 위하여 도 4에 도시된 바와 같이 상기 다수의 전기 및 전자기기에 각각 연결되고 서로 직렬접속되는 다수의 단자부를 구비할 수 있다.In this case, in order to simultaneously remove electromagnetic waves generated from a plurality of electrical and electronic devices, as shown in FIG. 4, a plurality of terminal units connected to the plurality of electrical and electronic devices and serially connected to each other may be provided.

도 4를 참조하면, 멀티탭의 형태를 갖으며, 상기 접지봉(34)이 인체와 접촉가능하도록 케이스에서 일부 돌출되어 설치되고, 슬라이드 스위치(35)가 사용자에 의한 조작이 용이하도록 케이스의 외부에 장착된다.Referring to FIG. 4, it has a form of a multi-tap, and the ground rod 34 is partially protruded from the case so as to be in contact with a human body, and the slide switch 35 is mounted on the outside of the case to facilitate operation by a user. do.

상기와 같은 구성을 갖는 본 발명에서 전자파의 발생을 확인하고 전자파를 제거하는 동작을 상세히 설명하면 다음과 같다.In the present invention having the configuration described above, the operation of checking the generation of electromagnetic waves and removing the electromagnetic waves will be described in detail as follows.

상기에서 전기 및 전자기기의 동작이 이루어지는 중에 슬라이드 스위치(35)의 상태가 전자가 발생되는 전원단자와 전자파 제거부(32)를 연결하는 상태이면 전자파의 제거가 이루어진다.If the state of the slide switch 35 is a state of connecting the power terminal and the electromagnetic wave remover 32, the generation of electrons during the operation of the electrical and electronic devices is removed.

먼저, 전기 및 전자기기의 동작이 이루어지는 중에 사용자가 상기 접지봉(34)에 손을 대면 전자파의 발생여부에 따라 램프(LAMP)의 점등여부가 결정된다. 즉, 플러그 선을 통해 전자파가 발생되는 연결상태이면 상기 램프(LAMP)가 점등되고, 전자파가 발생되지 않는 연결상태이면 상기 램프(LAMP)가 소등상태를 유지하게 된다.First, when the user touches the ground rod 34 while the electric and electronic devices are in operation, whether the lamp LAMP is turned on is determined according to whether the electromagnetic wave is generated. That is, the lamp LAMP is turned on when the electromagnetic wave is generated through the plug line, and the lamp LAMP is turned off when the electromagnetic wave is not connected.

결국, 사용자는 상기 램프(LAMP)가 점등되면 상기 슬라이드 스위치(35)를 조작하여 전자파가 발생되지 않는 연결상태로 변경하게 된다. 이때, 상기 전기 및 전자기기에서 발생된 전자는 대지접지선(GND)을 통해 대지로 환원되기 때문에 전자파를 발생시키지 않게 된다.As a result, when the lamp LAMP is turned on, the user operates the slide switch 35 to change to a connection state in which electromagnetic waves are not generated. At this time, since the electrons generated in the electric and electronic devices are reduced to the earth through the ground ground line GND, electromagnetic waves are not generated.

이상에서 설명한 바와 같은 본 발명의 전자파 제거장치는 사용자가 접지봉에 손을 대는 간단한 동작에 의해 현재 전기 및 전자기기에서 전자파가 발생되고 있는지를 확인할 수 있기 때문에 사용상의 편의성을 향상시킬 수 있게 되는 효과가 있다.The electromagnetic wave removing device of the present invention as described above can be confirmed whether the electromagnetic wave is generated in the current electric and electronic devices by a simple operation of the user touches the grounding rod, thereby improving the convenience of use. have.

또한, 슬라이드 스위치의 조작에 따라 제1,2 전원단자와 대지접지단 사이의 연결상태가 변경되기 때문에 전자파의 발생을 제거하여 전자파로부터 인체를 보호할 수 있게 되는 효과가 있다.In addition, since the connection state between the first and second power terminals and the ground ground terminal is changed in accordance with the operation of the slide switch, it is possible to remove the generation of electromagnetic waves to protect the human body from the electromagnetic waves.

Claims (3)

외부전원과 전기 및 전자기기의 사이에 연결되어 상기 전기 및 전자기기에서 발생되는 전자를 대지접지단으로 환원하는 경로를 제공하는 전자파 제거장치에 있어서,In the electromagnetic wave removal device that is connected between the external power source and the electrical and electronic devices to provide a path for reducing the electrons generated in the electrical and electronic devices to the earth ground terminal, 상기 외부전원과 전기 및 전자기기를 연결하는 제1,2 전원단자 및 대지접지단을 구비한 단자부와,A terminal unit having first and second power terminals and an earth ground terminal for connecting the external power source to electrical and electronic devices; 상기 대지접지단에 일단이 연결된 제1 저항과,A first resistor having one end connected to the ground terminal; 상기 제1 저항에 병렬접속되는 커패시터와,A capacitor connected in parallel with the first resistor; 상기 제1 저항의 타단과 접지봉의 사이에 연결되고 서로 직렬접속되는 램프 및 제2 저항과,A lamp and a second resistor connected between the other end of the first resistor and the ground rod and connected in series with each other; 상기 단자부의 제1,2 전원단자 중 어느 하나를 선택하여 상기 제1 저항의 타단으로 연결하는 스위칭부를 포함하는 것을 특징으로 하는 전자파 제거장치.And a switching unit which selects any one of the first and second power terminals of the terminal unit and connects it to the other end of the first resistor. 제 1 항에 있어서,The method of claim 1, 다수의 전기 및 전자기기에서 발생되는 전자파를 동시에 제거하기 위하여 상기 다수의 전기 및 전자기기에 각각 연결되고 서로 직렬접속되는 다수의 단자부를 구비하는 것을 특징으로 하는 전자파 제거장치.And a plurality of terminal portions respectively connected to the plurality of electrical and electronic devices and serially connected to each other in order to simultaneously remove electromagnetic waves generated from the plurality of electrical and electronic devices. 제 1 항에 있어서,The method of claim 1, 상기 램프는 인체가 접지봉에 접촉되고, 상기 스위칭부가 제1,2 전원단자 중 전자를 발생시키는 전원단자에 연결된 경우에 점등되어 전자파의 발생을 사용자에게 알려주는 것을 특징으로 하는 전자파 제거장치.The lamp is turned on when the human body is in contact with the ground rod, and the switching unit is connected to a power terminal for generating electrons among the first and second power terminals to inform the user of the generation of electromagnetic waves.
KR1019990059804A 1999-12-21 1999-12-21 Removal module for Electromagnetic waves KR20010063007A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101036430B1 (en) * 2008-01-22 2011-05-23 주식회사 엘지화학 Unified Product of Light-Guide Panel and Reflector and Method for Manufacturing the Same by Two-Shot Molding

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09312488A (en) * 1996-05-22 1997-12-02 Zexel Corp Grounding structure for emi in control unit equipped in vehicle
KR19980033540A (en) * 1998-04-23 1998-07-25 정무영 Electromagnetic wave shield
KR19980067564A (en) * 1997-02-06 1998-10-15 박명섭 Auxiliary outlet for electromagnetic wave absorption
KR19980073644A (en) * 1997-03-17 1998-11-05 이준균 Electromagnetic shielding and absorption device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09312488A (en) * 1996-05-22 1997-12-02 Zexel Corp Grounding structure for emi in control unit equipped in vehicle
KR19980067564A (en) * 1997-02-06 1998-10-15 박명섭 Auxiliary outlet for electromagnetic wave absorption
KR19980073644A (en) * 1997-03-17 1998-11-05 이준균 Electromagnetic shielding and absorption device
KR19980033540A (en) * 1998-04-23 1998-07-25 정무영 Electromagnetic wave shield

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101036430B1 (en) * 2008-01-22 2011-05-23 주식회사 엘지화학 Unified Product of Light-Guide Panel and Reflector and Method for Manufacturing the Same by Two-Shot Molding

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