JPS62112886A - Electromagnetic shielding method of glass window - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an intelligent building that has an electromagnetic shielding structure for the entire building and is suitable for adopting an information network system that uses radio waves, and particularly relates to an intelligent building that is suitable for adopting an information network system that uses radio waves. This invention relates to an electromagnetic shielding method for glass windows that improves the electromagnetic shielding performance of glass windows.

[Conventional technology]

Generally, in intelligent buildings, information and communication equipment such as complex electronic exchanges and computers are shared to communicate information within the building and with the outside world. Providing faster and more accurate information has become a major issue in large buildings. To address these issues in intelligent buildings, information networks based on data highway methods using optical fiber cables and coaxial cables have been studied and proposed.

[Problem that the invention seeks to solve]

However, with the data highway method that uses optical fiber cables and coaxial cables, the optical fiber cables and coaxial cables must be stretched to every corner of an intelligent building, which requires extra labor costs and construction time to lay the cables. It will take a while.

Furthermore, if radio waves are used for information communication within a building, there is no need to lay cables, but in this case, on the other hand, frequencies up to 50 GHz are subject to regulations under the Radio Law because they emit noise radio waves to the outside. On the other hand, there is a problem in that the system malfunctions due to external radio waves, internal television intermediate frequency waves, radio waves from wireless microphones, and the like.

Therefore, the applicant used electromagnetic shielding members to construct the frame and openings such as windows and doorways, thereby making the entire building electrically accessible.
We are separately proposing an intelligent building that uses a magnetic shield structure to enable communication within the building using radio waves. In this case, the entire building is electromagnetically shielded by using mesh-filled glass or glass covered with conductive film for the windows and entrances that open into the building.

By the way, when ensuring the electromagnetic shielding performance of a window using glass with a mesh or glass with a conductive film attached, it is necessary to reliably ground the mesh or the conductive film. However, since ensuring electromagnetic shielding performance in conventional glass windows has not been particularly studied, the technology for grounding the electromagnetic shielding layer of glass has not yet been established.

The present invention is based on the above consideration, and aims to provide an electromagnetic shielding method for a glass window that can easily ground the electromagnetic shielding layer of the window glass at low cost.

[Means for solving problems]

To this end, the electromagnetic shielding method for glass windows of the present invention is a method for electromagnetic shielding of glass windows in an intelligent building in which the entire building has an electromagnetic shielding structure by using electromagnetic shielding members to configure the frame and openings such as windows and doorways. This is characterized in that conductivity between the electromagnetic shielding layer of the window glass and the sash is ensured by compressing conductive rubber and fixing the window glass to the sash.

[Effect]

In the electromagnetic shielding method for a glass window of the present invention, in order to fix the window glass to the sash by compressing the conductive rubber, between the window glass and its electromagnetic shielding layer and the conductive rubber, and between the sash and the conductive rubber. Because a sufficiently large contact pressure can be obtained at It's a good thing.

〔Example〕

Examples will be described below with reference to the drawings.

FIG. 1 shows one of the electromagnetic shielding methods for glass windows according to the present invention.
FIG. 2, which is a diagram for explaining an embodiment, is a diagram showing another embodiment of the electromagnetic shielding method for a glass window according to the present invention.

In the figure, 1 and 6 are window glasses, 2 and 7 are electromagnetic shielding layers, and 3
4 indicates a conductive paint, 5 indicates a conductive rubber, and 5 indicates a sash.

In FIG. 1, a window glass 1 has an electromagnetic shielding layer 2 made of a conductive material such as a mesh or a film therein.
The ends are coated with conductive paint. The conductive rubber 4 compresses and fixes the window glass 1 to the conductive sash 5, and the conductive paint 3 and the conductive rubber 4 create electrical conductivity between the electromagnetic shielding layer 2 of the window glass 1 and the sash 5. gender is ensured. In particular, by compressing and fixing the window glass l with the conductive rubber 4, the contact pressure between the conductive paint 3 and the conductive rubber 4, which are electrically connected to the electromagnetic shielding layer 2, becomes sufficiently large. , as well as Satsush 5
Since the contact pressure between the conductive rubber 4 and the conductive rubber 4 becomes sufficiently large,
Contact resistance is reduced and sufficient conductivity can be obtained.

The example shown in FIG. 2 is another embodiment of the present invention in which a window glass 6 is vacuum-deposited with metal or a conductive film is attached to form an electromagnetic shield N7. In this case, since the electromagnetic shield N7 is provided on the surface of the window glass 6, the conduction between the electromagnetic shield layer 7 and the conductive rubber 4 can be directly conducted without applying the conductive paint 3, as shown in FIG. It is possible to ensure sex.

FIG. 3 is a diagram for explaining one embodiment of the grounding method for the sash frame, in which 11 is the sash frame, 12 is the sash anchor, 13 is the embedded anchor, 14 is the reinforcing bar, 15 is the mortar, and 16 is the frame. show.

In FIG. 3, reinforcing bars 14 are used to reinforce the concrete of the frame 16, and are ultimately grounded through these reinforcing bars 14. Therefore, the embedded anchor 13 is embedded in the concrete of the frame 16 by integral casting, and an earth bond is established with the reinforcing bar 14 to the embedded anchor 13. Therefore, by welding the embedded anchor 13 from the sash frame 11 at one or more locations, the conductivity from the sash frame 11 to the reinforcing bars can be improved, and the electromagnetic shielding performance of the entire window can be improved.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, conductivity between the window glass and the sash can be ensured simply by compressing and fixing the window glass to the sash using conductive rubber in the same manner as in the past. The electromagnetic shielding performance of window glass can be easily improved without adding any structure or work.

[Brief explanation of drawings]

FIG. 1 shows one of the electromagnetic shielding methods for glass windows according to the present invention.
FIG. 2 is a diagram showing another embodiment of the electromagnetic shielding method for a glass window according to the present invention, and FIG. It is a diagram. 1 and 6...window glass, 2 and 7...electromagnetic shielding,
3... Conductive paint, 4... Conductive rubber, 5... Su, Shu. Applicant: Shimizu Corporation Representative Patent Attorney Ryukichi Abe (2 others) Figure 1 Figure Z

Claims (2)

[Claims] (1) An electromagnetic shielding method for glass windows in an intelligent building in which the frame and openings such as windows and doorways are constructed using electromagnetic shielding materials, making the entire building an electromagnetic shielding structure. An electromagnetic shielding method for a glass window, characterized by securing conductivity between the electromagnetic shielding layer of the window glass and the sash by fixing the window glass to the sash. (2) The electromagnetic shielding method for a glass window according to claim 1, characterized in that a conductive paint is applied to the edge of the window glass.