KR200178587Y1 - Apparatus for electromagnetic wave shielding - Google Patents

Abstract

The present invention relates to a removal device that removes signals generated by attaching the device to a place where grounding of various electrical devices such as a computer and its peripherals and home appliances is required.

The electromagnetic wave removing device 400 of the present invention is connected to both ends of the switch 140 for sequentially detecting the potential difference between the power supply line 111 (L-1, L-2) including the power terminal, and the power terminal. A voltage drop element 130 for dropping a voltage, a ground terminal 170 for grounding electromagnetic waves induced by an electrical device, and an overcurrent protection element 150 or 160 for blocking an overcurrent flowing into the ground terminal. have.

The device 400 of the present invention includes an absorbing element 120 capable of removing the counter voltage and lightning voltage flowing into the power line to supply a clean voltage to a computer and an electric device, and to connect an electric device. Equipped with the outlet 100 can be easily applied regardless of the input power. Therefore, when a plurality of conventional quantities are connected to a power source, a ground fault signal may be detected by the ground fault breaker, thereby preventing data loss due to a short circuit of the ground fault breaker. In addition, it prevents electromagnetic waves and static electricity harmful to the human body, and can supply clean electricity to computers and electrical devices.

Description

Electromagnetic wave shielding device {Apparatus for Electromagnetic Wave Shielding}

The present invention relates to a device for removing electromagnetic waves, and more particularly, to a device for easily attaching the device to a place where grounding of various electric devices such as a computer, its peripherals, and home appliances is required, and to remove the electromagnetic signal generated therefrom. will be.

In general, the power supplied to homes and offices is largely divided into single-phase two-wire and single-phase three-wire types. In the single-phase two-wire type, the potential supplied to one of the power sources is supplied at almost the same potential as the ground potential. It is usually supplied at 110V and 220V based on ground potential. In addition, the single-phase three-wire system is composed of a separate ground potential and the potential supplied to the remaining two wires with the same potential, and are connected to 110V and 220V according to the wiring method.

Conventionally, the area where electromagnetic waves are generated is mainly focused on monitors and TV CRTs (hereinafter referred to as monitors), and strong light emitted from the monitors and various harmful electromagnetic waves cause blindness. In addition to the main unit, power supplies such as monitors, keyboards, printers, mice, and scanners generate a lot of electromagnetic waves. Also, televisions, washing machines, refrigerators, microwave ovens, audio, hair dryers, lighting equipment, electric irons, etc. , VTRs, vacuum cleaners, heating appliances, electric mats, air cleaners, massagers, exercise equipments driven by electricity, and appliances supplied with electrical energy emit electromagnetic waves.

As a device for shielding conventional electromagnetic waves, Korean Patent Publication No. 95-22532 is to install a cover and a shielding film on the electromagnetic wave generating portion, and Korean Utility Model Publication 96-3552 is to attach a plate and an elastic piece, Korean Patent Publication No. 98-33540 Is to filter out low frequencies by detecting electromagnetic waves. Korean Patent Publication No. 99-52752 rectifies and buffers an electromagnetic wave detection signal to attenuate electromagnetic waves, and Korean Utility Model Publication No. 98-60765 bypasses the ground by forming a bypass pattern on the printed circuit board when there is a ground fault. To prevent and absorb electromagnetic waves, and Korean Utility Model Registration No. 20-146311 is to absorb electromagnetic waves by a coating member, a blocking member, and a cover. As such, most of the conventional electromagnetic shielding devices are devices for absorbing electromagnetic waves, and an expensive security device is installed in a computer or a TV to remove electromagnetic waves, but it is not suitable for grounding, and it is not harmful to grounding in most home appliances. Can't block electromagnetic waves. In addition, a device that blocks electromagnetic waves by finding a ground (virtual ground) similar to the ground potential among power supplies to a home or office has been developed, but does not completely remove electromagnetic waves.

Problems of the conventional electromagnetic shielding device is first; There is a reverse flow of voltage; When a large quantity is installed in the same place, the circuit breaker detects a short circuit due to the parallel value of the circuit and the short circuit breaker is shorted off; Not easy grounding; fourth; In the case of using the neon sensor, there is a method of selecting and grounding a low potential by comparing the potential difference between input power sources. However, the neon sensor is malfunctioned because it is different from the discharge voltage and the cutoff voltage, and the sensor has a unique characteristic. There are many problems that act as a factor to increase the electromagnetic wave.

In order to solve the above problems, the present invention can be confirmed by simple switch operation and separate ground discriminator, and it is possible to provide a device that can safely and easily ground the electromagnetic wave generated from the computer and its peripherals and electronic products. There is this.

1 is a circuit diagram of the present invention.

2 is a flowchart of the present invention.

3 is a configuration diagram of the present invention.

<Explanation of Signs of Major Parts of Drawings>

100: power outlet with ground terminal

101: overcurrent breaker

110: plug for power connection

111 (L-1, L-2): Power supply line, (L-3): Ground line

120: counter voltage and lightning voltage absorbing element of the power line

130 (C-1, C-2, C-3, R-1, R-2): voltage drop element

140 (D-1, D-2, D-3, D-4): selector switch

150, 160: overcurrent protection device

170: ground terminal, 171: Y terminal connected to the computer

172: Jack to goggles

180: ground detector, 200: safety glasses

300: computer main body, 400: electromagnetic wave removing device

Hereinafter will be described based on the drawings of the present invention.

1 is a circuit diagram of the present invention, Figure 2 is a flow chart for explaining the operation of FIG. First, the basic configuration of the present invention, in the removal device for shielding the electromagnetic waves generated from the computer and its peripherals and home appliances (hereinafter referred to as electrical equipment),

A switch 140 for sequentially detecting a potential difference between the power supply lines 111 (L-1 and L-2) having a power terminal, and a voltage drop element 130 connected to both ends of the power terminal to drop a voltage; ), A ground terminal 170 for grounding the Y terminal 171 connected to the computer with electromagnetic waves induced by the electric device, and a jack 172 connected to the safety glasses, and an overcurrent protection device for blocking the overcurrent flowing into the ground terminal ( 150, 160, and a ground detector 180 that reads whether the ground is present, and includes a counter voltage and lightning voltage absorbing element 120 of a power line, and includes a resistor and a capacitor of the voltage drop element 130. (C-3) is a circuit for removing a short circuit detection phenomenon of a ground fault circuit breaker generated when a plurality of electromagnetic wave removal devices are connected, which is a feature of the present invention and is different from conventional products.

Looking at the grounding method of the electromagnetic wave removing device of the present invention according to the flow chart as follows.

* Step 1; First, the ground terminal 170 of the electromagnetic wave removing device is grounded to an electric device to be used.

Step 2; In order to select ground, switch 140 is switched to ground ground position D-4, and then a power supply is connected.

* Steps 3 and 4; After the ground detector 180 is placed on the electric device, when the alarm sounds, the switch 140 is switched to the ground position D-3. When the ground detector 180 does not sound, the ground is completed, so the operation is completed.

Steps 5 and 6; If the alarm continues to sound at the ground detector even when the switch 140 is switched to the next position D-3, switch to the next position D-2, and if the alarm does not sound at the ground detector, the power supply is a single-phase two-wire type power supply equal to the ground potential. Since the voltage is applied to the voltage drop element 130 and the overcurrent protection elements 150 and 160 connected to the next position D-2 of the switch 140, the electromagnetic wave is absorbed from the grounded electrical device. And complete the operation.

Steps 7, 8; If the alarm continues to sound at the ground detector even when the switch 140 is switched to the next position D-2, switch to the next position D-1, and if the alarm does not sound at the ground detector, the power supply is a single-phase two-wire type power supply equal to the ground potential. Since it is applied to absorb the electromagnetic waves induced in the grounded electrical equipment through the voltage drop element 130 (C) and the overcurrent protection elements 150, 160 connected to the ground position D-2 of the switch 140, Keep and complete the action.

If the grounding detector still beeps even when the switch 140 is switched to the D-1 position, switch back to the D-3 position and repeat the above-described operation.If the grounding detector does not sound, the power supply is a single-phase three-wire system. In the voltage drop element 130 connected to both ends of the power supply terminals 111 (L-1 and L-2), the center point is set to the ground potential to be grounded through the overcurrent protection elements 150 and 160. Since the electromagnetic wave is removed from the electrical equipment, the current state is completed to complete the operation.

As described above, according to the present invention, the electromagnetic wave can be removed by sending the electromagnetic wave to the ground potential by grabbing the ground without malfunction by simple operation and checking to match the supplied power system.

The present invention can be easily applied to electrical equipment that requires grounding by simple switch operation and ground detector to check whether it is grounded. By flowing through the terminal, electromagnetic waves and static electricity can be avoided. It is also a useful design to escape the fear of various electromagnetic wave syndromes (DVT) associated with computers, peripherals and electrical equipment.

Claims (5)

In the device for removing electromagnetic waves generated by electrical equipment, The electromagnetic wave removing device 400 of the present invention includes a switch 140 for sequentially detecting a potential difference between a power terminal and a power supply line 111 (L-1, L-2) at a power outlet 100 having a ground terminal. A voltage drop element 130 connected to both ends of the power supply terminal to drop a voltage; a ground terminal 170 for inductively grounding electromagnetic waves induced by an electrical device; and an overcurrent protection element for blocking overcurrent flowing into the ground terminal. 150), (160) characterized in that the electromagnetic wave removing device. [2] The electromagnetic wave removing device of claim 1, further comprising a voltage drop element (130) and a C-3 as a circuit for removing a short circuit detection phenomenon of the ground fault circuit breaker generated when a plurality of electromagnetic wave removing devices are connected. The electromagnetic wave removing device of claim 1, wherein the electromagnetic wave removing device (400) includes an element (120) for absorbing a lightning voltage and a counter voltage at a power supply terminal. The electromagnetic wave removing apparatus of claim 1, wherein a power outlet (100) having a ground terminal to be connected to another electrical device is provided at an upper portion of the electromagnetic wave removing device (400). According to claim 1, The electromagnetic wave removal device 400 is configured so that the Y terminal 171 branched from the ground terminal 170 is grounded to the computer main body 300, the connection jack 172 is grounded to the safety glasses 200. Electromagnetic wave removing device characterized in that