KR20000066243A - Electromagnetic shielding cap - Google Patents

Abstract

PURPOSE: A cap for shielding electromagnetic wave is provided to protect a brain area from harm of the electromagnetic wave generated by computer, cellular phone, mobile phone, beeper, wireless communicating devices, microwave oven, TV, electronics, etc. CONSTITUTION: A cap for shielding electromagnetic wave is manufactured by inserting conductive metal net woven metal fabrics between the outside cloth(11) and the inside cloth(13) of the cap. The shielding materials(12) of the electromagnetic wave are copper and nickel. In addition to the materials, aluminium, brass and steel are contained to the metal net. A diameter of the shielding materials(12) is in the range of 0.01-0.1mm and the net mesh is 50-300 mesh/inch. The shielding effect of 200 mesh/inch covers several hundred MHz frequency up to 80dB or several GHz frequency up to 40dB. An ear covering(14) is foldable and attached to the cap for using a cellular phone or mobile phone.

Description

Electromagnetic shielding cap {Electromagnetic shielding cap}

With the advancement of the electronics and telecommunications industry, the development of electronic devices and electrical products is accelerating. On the other hand, with the acceleration of the use of electronic devices and electrical appliances, it causes new problems such as the harm of electromagnetic waves and the pollution of the electromagnetic environment (EMC), which are inevitably occurring, and shields the electromagnetic waves that adversely affect the body, various devices, and malfunctions. There is much effort to do.

In order to minimize the harm caused by electromagnetic waves, various methods have been proposed, but practically little is used, and even if commercialized, the effect is insignificant. Generally, copper plate or aluminum foil is used to prevent electromagnetic waves, but it is difficult to completely shield electromagnetic waves generated from electrical and electronic products such as computers and various communication equipments, and such methods are also expensive or bulky. Problems such as deterioration in efficiency are included.

Generally, electromagnetic shielding clothes and aprons are produced as products to shield electromagnetic waves of electronic devices, and while wearing these clothes or aprons and sitting in front of computers, the electric field of electromagnetic waves It is disturbed by the human body and concentrated on the brain rather than on the chest or the body, causing brain wave disturbance and raising the temperature of the brain, which can cause brain damage. By protecting these areas of the brain, the most important part of the body from the harmful electromagnetic waves generated from computers, mobile phones, cordless phones, beeps, wireless communication devices, microwave ovens, TVs, electrical equipment and high-voltage lines, etc. It is intended to be completely blocked by a hat.

Therefore, an object of the present invention is to protect the brain area where the electric field is concentrated in the body part with an electromagnetic shielding cap to maintain the brain wave normally and to minimize brain damage. Also, between the outer shell 11 and the inner shell 13 of the cap, a conductive metal mesh woven from fiber such as copper, nickel or aluminum is inserted to give electromagnetic shielding properties, and the metal mesh structure provides light weight and breathability. By adding the function of electromagnetic shielding to the function, it not only doubles the function of the hat but also antistatic effect can be obtained.

1 is a phenomenon in which electric field and magnetic field of electromagnetic waves affect the human body

2 is a structure of a metal network that is an electromagnetic shielding material 12

3 is a graph showing the electromagnetic shielding effect of the same network as the electromagnetic shielding material 12

4 is a structure of the cap for electromagnetic wave shield of the present invention

<Description of the code | symbol about the principal part of drawing>

11: outer jacket

12: electromagnetic shielding material

13: endothelial cap

14: earmuffs shield

Electromagnetic shielding hat of the present invention is characterized by being manufactured by inserting a conductive metal mesh woven of fibers such as copper, nickel and aluminum between the outer shell 11 and the inner shell 13 of the cap.

As the material of the electromagnetic shielding agent 12 in the form of a conductive metal mesh used in the present invention, it is possible to produce a mesh-shaped metal mesh containing aluminum, brass, steel, etc. based on copper and nickel.

The electromagnetic shielding material 12 has a diameter of 0.01 to 0.1 mm and has a shape of 50 to 300 mesh / inch. The shielding effect blocks frequencies of several hundred MHz to 80 dB at 200 mesh / inch and 40 dB at several GHz. It can block electromagnetic waves.

1 shows the effect of the electric field and magnetic field of the electromagnetic wave on the human body. As shown in the figure, it can be seen that the electric field lines are concentrated on the brain parts of the body.

2 is a structural diagram of the electromagnetic wave shielding material 12 and the blocking effect SE of the electromagnetic wave according to the thickness and thickness of the metal network is expressed as follows.

As a result, the electromagnetic wave shielding material 12 of the cap for electromagnetic wave shielding has a higher shielding effect as a dense metal mesh and excellent shielding function of a metal mesh using a conductive material such as copper, nickel, and brass.

In the computer room and the place where a lot of computers are used, the shielding is possible with a metal mesh structure of about 100 mesh / inch, and when using a lot of broadcasting, communication facilities and mobile phones, a high degree of shielding is required. There is a need for an electromagnetic shield 12 having a compact structure. Therefore, the electromagnetic wave shielding material 12 may be manufactured by being inserted between the outer shell 11 and the inner shell 13 of the cap according to the shielding degree and the required function of the electromagnetic wave, and may be manufactured in consideration of the ventilation and durability of the cap.

As described above, in the present invention, by inserting the metal fiber of the mesh structure between the outer shell 11 and the inner shell 13 of the cap, it is possible to protect important brain parts of the body that are most exposed to electromagnetic waves in daily life.

These radio waves are used in close proximity to the ear in the case of wireless telephones and mobile phones, so they directly cause disturbances such as disturbing brain waves. Can be protected from electromagnetic waves of cell phones and cordless phones.

In addition, workers who work in subway stations or substations and nearby residents are always exposed to electromagnetic waves, causing harm to humans. Therefore, measures for blocking electromagnetic waves are urgent.

On the other hand, the electromagnetic wave shielding cap can protect the most important brain part of the body, so the ripple effect will be considerable.

The electromagnetic wave shielding cap of the present invention has a shielding ear cap 14 when using a mobile phone or a cordless phone, so that it is not only able to block the direct electromagnetic wave transmission but also has a thin mesh structure, so that the call reception sound is not a problem at all. Do not.

3 is a graph showing the electromagnetic shielding effect of the network according to the frequency.

In addition, since the electromagnetic wave shielding material 12 is located between the outer skin and the inner skin of the hat, there is no direct skin contact and thus does not cause surface cooling and allergy of the mobile phone.

4 is a structural diagram of a cap for electromagnetic wave shield of the present invention.

In FIG. 4, the ear cap 14 of the cap for electromagnetic wave shield is attached to the cap to cover the ears down when using a mobile phone and a cordless phone to block electromagnetic waves, and when not in use, the ear cap 14 is folded up. It can be placed and can be produced in the form of the ear cap 14 in the shape of the original hat.

Claims (3)

Electromagnetic shielding cap to protect the head where the electric field of electromagnetic waves is concentrated A hat having a conductive mesh inserted between the outer shell 11 and the inner shell 13 of the cap having an electromagnetic shielding function made of fibers such as copper, nickel, and aluminum. Electromagnetic shielding cap with earmuffs (14) to block direct effects of electromagnetic waves when using mobile phones and cordless phones