JP2000054523A - Electromagnetic shield method using conductive wall paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an electromagnetic shield construction work depressing the construction period and cost by providing a conductor layer made of a metallic sheet and forming an electromagnetic shield layer provided with interior finish wall paper having vinylchloride protection layers at the front and rear faces. SOLUTION: In this conductive wall paper 1, a conductor layer 2 is formed of a metallic sheet such as aluminum, and a protection layer 5 such as vinylchloride or the like is formed at the front and rear faces. A sheet of wall paper 1 is stuck on a substrate 4 such as a board with an adhesive layer 3 to form the conductor layer 2 of the wall paper 1 as a shield layer. The protection layer 5 can be provided at only one side, and it can be replaced or stuck on an existing wall paper. A required shield capacity can be obtained by changing the thickness or the quality of the metallic sheet. In this way, an interior finish work based on usual processes can be carried out and the shield layer can be formed without increase of the processes. Accordingly, an electromagnetic shield work can be realized while depressing the processes and construction period and cost of the interior finish work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic shielding method using a conductive wallpaper in which a shield layer is formed on a wall surface with a conductive material.

[0002]

2. Description of the Related Art With the spread of mobile phones and wireless devices, offices and the like where high-performance, high-sensitivity OA devices are installed are required to electromagnetically shield the inside and outside. Further, in the case of employing a radio communication system using radio waves, regulations of the Radio Law on the used frequency band poses a problem. Therefore, in order to freely select and set the operating frequency band and adopt a unique radio communication method without being restricted by the Radio Law, the space inside the building was electromagnetically shielded from the outside. Construction of an electromagnetic shield building is indispensable. The applicant has already disclosed such an electromagnetic shield building, for example, in Japanese Patent Publication No. 6-99972 and Japanese Patent Publication No.
Japanese Patent Publication No. 9973, Japanese Patent Publication No. 7-16118, and Japanese Patent Publication No. 6-76706 propose a shielding structure of a building frame and an outer wall. Japanese Patent Publication No. 6-99971, Japanese Patent Publication No. 6-33699, and Japanese Patent Publication No. Hei 6-13822 discloses a structure for shielding the entrance and exit of a building.
407, Japanese Patent Publication No. 5-79790, Japanese Patent Publication No. 3
Japanese Patent Application Laid-Open No. 58557/1999 proposes a shielding structure for a window opening. Further, Japanese Patent Publication No. 3-62320, Japanese Patent Publication No. 3-44972, Japanese Patent Publication No. 3-62318, and Japanese Patent Publication No. 5-34159 propose a ceiling and a shielding structure for each layer.

FIG. 2 is a diagram showing an outline of the configuration of an electromagnetic shield building, where 30 is a ceiling, 40 is a wall, 50 is a window, and 60 is a floor. In FIG. 2, a wall 40 is, for example, a metal mesh, a metal foil (film), a nonwoven fabric, or a sheet using a conductive fiber or the like, or a conductive paint applied to form an electromagnetic shield layer on the inner wall of the body. Alternatively, a board having such an electromagnetic shield layer formed on one side is used. The ceiling 30 and the floor 60 are also constructed in the same manner as the wall 40, or use panels to which an electromagnetic shielding material is attached. The window 50 is formed by forming an electromagnetic shield layer on one or both sides of the window glass by using an electromagnetic shield material in the same manner as described above, and connecting the electromagnetic shield layer to a sash frame to form an electromagnetic shield layer on the wall 40 and the window 50. Are electrically connected integrally. As described above, in the conventional electromagnetic shield building, the electromagnetic shielding material is used for the skeleton and the wall structure as described above, and the electromagnetic shielding material is also used for the openings such as the windows and the entrances and the like, and the entire surface is along the outer wall of the building. By covering with an electromagnetic shielding material, the space in the building is configured as one electromagnetic shielding space independent from the outside.

[0004]

However, in a typical electromagnetically shielded building, a deck slab laid on the ceiling as an existing building material is used as a shield layer. Since the steel sheet and the conductive non-woven fabric are applied, the construction work is increased by one step. In other words, in the case of an electromagnetically shielded building, in general, after the frame work, the entire floor or the entire building is completely enclosed with a conductive material such as metal as an electromagnetically shielded work prior to the interior construction work. This increases the number of construction steps by one, and in some cases increases the construction period and construction costs.

Conventionally, the interior construction company and the electromagnetic shielding company sometimes perform work in phase numbers, and depending on the progress of both works, the work efficiency is reduced due to waiting for work, and the process is extended. There's a problem. If the shield work can be completed while performing normal construction work, it is effective for cost reduction and shortening of the process, but the conventional work has various problems as described above.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to enable an electromagnetic shield construction while suppressing an increase in the interior construction process, construction period and cost.

[0007] For this purpose, the present invention relates to an electromagnetic shielding method for forming a shield layer on a wall surface with a conductive material,
It is characterized in that a wallpaper having a conductor layer made of a metal sheet is used as an interior material of a wall surface and a shield layer is formed by a conductor layer, and a protective layer of vinyl chloride is provided on the front and back surfaces of the conductor layer. It is a feature.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing an embodiment of an electromagnetic shielding method according to the present invention, wherein 1 is a wallpaper, 2 is a conductor layer, 3 is an adhesive layer, 4 is an underlayer, and 5 is a protective layer.
In FIG. 1, a wallpaper 1 is a wallpaper having a conductor layer made of a metal sheet such as aluminum, and the wallpaper layer is used as a shield layer. By providing a protective layer 5 such as vinyl chloride on the front and back surfaces of the metal sheet forming the conductive layer 2 of the wallpaper 1, it is possible to prevent the conductive layer 2 from being damaged during transportation and construction. The base 4 is an interior material such as a board, and the adhesive layer 3 is for attaching the wallpaper 1 on the base 4.

[0009] In the interior construction work of a normal building, the wall surface is
Often wallpaper finish. In this case, when the conductive wallpaper 1 is used as in the present invention, the conductive layer 2 of the wallpaper 1 is bonded to the shield layer by bonding the wallpaper 1 on the base 4 such as a board with the adhesive layer 3. Therefore, the shield wall can be constructed by the same process as the construction of the normal interior wall construction.

[0010] When aluminum is used as the metal sheet of the wallpaper 1, for example, a very high electrical conductivity of 10 ⁶ S / m can be obtained. By changing the thickness and the material of the layer, the lightness can be reduced from about 10 dB. Desired shielding performance can be realized up to a general level of 30 to 40 dB.

Note that the present invention is not limited to the above-described embodiment, and various modifications are possible. For example, the protective layer 5 is formed on the front and back surfaces of the metal sheet on which the conductor layer 2 is formed.
Is provided, but may be provided on only one of them. In addition, the electromagnetic shield method according to the present invention can be applied to both new construction and renewal construction regardless of either one.

[0012]

As is apparent from the above description, according to the present invention, a wallpaper having a conductor layer made of a metal sheet is used as an interior material of a wall surface, and a shield layer made of a conductor layer is formed. Shielding work can be performed simultaneously with interior work according to the process. Therefore, the shield layer can be formed without increasing the number of steps due to the shield work, which is advantageous in both process and cost as compared with the conventional method. Moreover, the renovation of an existing building as an electromagnetic shield building requires only simple work such as replacing the wall surface with a wallpaper having a conductive layer of the metal sheet of the present invention, or pasting it on the existing wallpaper. realizable.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of an electromagnetic shield method according to the present invention.

FIG. 2 is a diagram showing a configuration outline of an electromagnetic shield building.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Wallpaper, 2 ... Conductor layer, 3 ... Adhesive layer, 4 ... Base, 5
… Protective layer

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuji Yamakawa 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Hirokazu Sato 1-2-3 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Shinichi Shibuya 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation F-term (reference) 4F100 AB01B AB10 AK15A AK15C BA03 BA04 BA06 BA08 BA10A BA10C BA10D BA26 CB00 CB00D GB08 JG01 JG01B JL01 JL02 5E321 AA44 BB21 BB44 CC16 GG01 GG05

Claims (2)

[Claims] 1. An electromagnetic shielding method for forming a shield layer on a wall surface using a conductive material, wherein a wallpaper having a conductive layer made of a metal sheet is used as an interior material of the wall surface, and the shield layer is formed by the conductive layer. Electromagnetic shielding method using conductive wallpaper. 2. The electromagnetic shielding method using conductive wallpaper according to claim 1, wherein a protective layer of vinyl chloride is provided on the front and back surfaces of the conductor layer.