JPH03260278A - Electromagnetic shielding 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] [Industrial Application Field] The present invention-1 relates to an intelligent building with an electromagnetic shielding structure suitable for adopting an information network system using radio waves. This relates to electromagnetic shielding windows.

[Conventional technology] In general, what about intelligent buildings? Information and communication equipment such as electronic devices and computers are shared between buildings and outside the building, but the amount of information is increasing due to the increasing value of information and the diversification of needs (IL individualization). Under these circumstances, the challenge for large-scale buildings is how to transmit the necessary information more quickly and at a lower cost. As a solution, an information network based on a data highway system using optical fiber cables or coaxial cables has been proposed. So, optical fiber
Cables and coaxial cables must be routed to every corner of an intelligent building, and floor ducts and double floors are required to lay the cables, resulting in construction costs and construction times that cannot be ignored.

Furthermore, if radio waves are used for information communication within a building, there is no need to lay cables, but in this case, as shown in Figure 4, frequencies up to 50 GHz are prohibited under the Radio Law, as they emit noise radio waves to the outside. On the other hand, there is a problem in that the system malfunctions due to radio waves from outside.

Therefore, the applicant has proposed an intelligent building that enables wireless communication within the building using radio waves by creating an electromagnetic shielding structure for the entire building by using electromagnetic shielding materials in the frame and openings such as windows and doorways. Is going.

In that case, in intelligent buildings with electromagnetic shielding structures, various ideas and countermeasures will be required, especially for windows and doorways that serve as openings in the building. For example, in window 1,
As shown in FIG. 5, the electromagnetic shielding performance of the window 1 is ensured by using an electromagnetic shielding window glass 2 provided with a mesh or other conductive material.

That is, the electromagnetic shielding glass 2 prevents radio waves from passing through the window 1.

Incidentally, from a design standpoint, structural glazing has recently been added to the electromagnetic shielding window 1 as shown in Figure 6.
System (SSG) 419 method is increasingly being adopted, and is formed by arranging multiple electromagnetic shielding window glasses 2, 3 (in the example shown, there are two window glasses) in almost the same plane. In that case, the joint ends 2a of the electromagnetic shielding window glasses 2, 3 adjacent to each other,
3a is supported on a mullion 5 of the building via a bank-up material 4, and a structural sealant 6.
It is sealed and fixed by 7.

However, since this structural sealant 6.7 does not have electromagnetic shielding performance, the joint ends 2a and 3a of the electromagnetic shielding window glasses 2 and 3 and the electromagnetic shielding window glasses 2.3
There is a gap between the building and the mullion 5 that does not have electromagnetic shielding performance, and electromagnetic waves pass through this gap from the outside of the building to the inside, and conversely from the inside to the outside. Even if the window glass 2.3 is made to have electromagnetic shielding performance, there is a problem in that the window 1 cannot reliably shield electromagnetic waves.

The present invention has been made in view of such problems, and an object thereof is to provide an electromagnetic shielding window that can reliably shield electromagnetic waves even at the joint portion of the electromagnetic shielding window glass.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a method in which a plurality of electromagnetic shielding window glasses are arranged side by side on the same plane, and the electromagnetic shielding window glasses that are adjacent to each other are An electromagnetic shielding window in which a joint end is supported by a mullion via a backup material and a structural sealant seals between the mullion and the joint end of the electromagnetically shielding window glass, the structural sealant comprising: The present invention is characterized in that it is a conductive sealant that electrically connects the conductive member provided in the mullion and grounded to the electromagnetic shielding member of the electromagnetic shielding window glass.

[Function] In the electromagnetic shielding window according to the present invention having such a configuration, the conductive structural sealant electrically connects the conductive member provided in the mullion and grounded and the electromagnetic shielding member of the electromagnetic shielding window glass. Since the joint part of the electromagnetic shielding window glass becomes an electromagnetic shielding structure. Therefore, electromagnetic waves are reliably shielded even at the joint portion of the window glass.

[Example code] Hereinafter, the present invention will be explained in detail using the drawings.

In the following embodiments, the same components as those in the above-mentioned conventional example are given the same reference numerals, and detailed explanation thereof will be omitted.

FIG. 1 is a partial sectional view of an embodiment of an electromagnetic shielding window according to the present invention.

As shown in FIG. 1, an electromagnetic shielding window 1 based on the SSG construction method includes two electromagnetic shielding window glasses 2 and 3. An electromagnetic shielding member 8,
9 are arranged. Also, the joint end 2a of the electromagnetic shielding window glass 2.3.

3a is supported by a mullion 5 of the building via a backup material 4, and a structural sealant 6=
, 7'. Furthermore, the space between the joint ends 2a and 3a is filled with a waterproof sealing material 10 and sealed.

On the other hand, the structural sealants 6' and 7- contain a conductive material and are high modulus conductive sealants. These structural sealants 6' and 7' are electrically connected to the electromagnetic shielding members 8.9 of the window glasses 2 and 3 by utilizing the conductivity of the metal sash of the mullioned portion 5.

Therefore, when the electromagnetic wave α attempts to leak from the room to the outside through the window glass 2.3, the electromagnetic wave α collides with the electromagnetic shielding member 8.9 of the window glass 2.3, and the electromagnetic wave energy is transferred to the conductive structural sealant 6. '7' to the mullion 5.

Therefore, electromagnetic waves α are prevented from leaking outside through the window. Furthermore, when the electromagnetic wave α tries to leak out from the gap between the joint ends 2a and 3a of the window glass 2゜3, the electromagnetic wave α collides with the structural sealants 6= and 7=, and the energy is similarly transferred to the mullion 5. t'lA
The electromagnetic wave α is also prevented from leaking out through the gap in the joint part. On the other hand, electromagnetic waves β from outside are also transmitted through the window glass 2.
．． 3 and the joint portion from entering the room through the gap.

FIG. 2 is a sectional view similar to FIG. 1 showing another embodiment of the present invention.

In this embodiment, the electromagnetic shielding window glass 2.3 is formed of multilayer (two layers in the illustrated example) glass.
An electromagnetic shielding member 8.9 is arranged on the air-tight side of the glass on the indoor side. In addition, three backup materials 4. made of foamed polyethylene etc. are used as backup materials. 4.
4 are arranged. Furthermore, the joint ends 2a of the window glasses 2 and 3.

A layer of metal foil or a layer of, for example, epoxy conductive paint ↓2 is provided from the facing surface of 3a to the indoor surface. This layer 12 is connected to the electromagnetic shielding member 8.9 and to the structural sealant 6'7'.

In this embodiment, therefore, when the electromagnetic wave α impinges on the electromagnetic shielding member 8.9 of the window pane 2.3, its energy is transferred to the layer of metal foil or the layer of conductive paint 12, for example based on epoxy, and the structural sealant 6= , 7= to the mullion 5. Further, since the electromagnetic wave α that attempts to pass through the gap between the joint ends 2a, 3a and the mullion 5 is the same as described above, a description thereof will be omitted. In this way, window glass 2
3 and the gap between the joint ends 2a, 3a and the mullion 5 is electromagnetically shielded.

FIG. 3 is a partial sectional view similar to FIG. 1 showing still another embodiment of the present invention.

In this embodiment, the electromagnetic shielding window glass 2.3 is made of laminated glass, and an electromagnetic shielding member 8.9 is arranged between the inner and outer glass. The other configurations are the same as the embodiment shown in FIG. 2 described above.

Therefore, also in this embodiment, the joint portion of the window glass 2.3 has an electromagnetic shielding structure. [Effects of the Invention] As is clear from the above explanation, according to the electromagnetic shielding window of the present invention, the electromagnetic shielding window Not only can the glass reliably shield electromagnetic waves, but also the joint portion of the window glass can reliably shield electromagnetic waves.

[Brief explanation of drawings]

FIG. 1 is a partial cross-sectional view of one embodiment of an electromagnetic shielding window according to the present invention, FIG. 2 is a partial cross-sectional view showing another embodiment of the present invention, and FIG. 3 is a partial cross-sectional view showing yet another embodiment of the present invention. Partial sectional view, 4th
The figure is a sectional view of a conventional general window, FIG. 5 is a sectional view of a window in which a conventional electromagnetic shielding window glass is used, and FIG. 6 is a diagram showing a joint part of the electromagnetic shielding window glass. 1... Electromagnetic shielding window, 2, 3... Electromagnetic shielding glass, 4
...Pack amplifier material, 5...Mulled part 6', 7'.
...Conductive structural sealant, 8.9...Electromagnetic shielding member, 12... Layer of metal foil or layer of conductive paint Figure 1 Outside Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] (1) A plurality of electromagnetic shielding window glasses are arranged side by side on the same plane, and the joint ends of the electromagnetic shielding window glasses that are adjacent to each other are supported by a conductive mullion that is grounded via a backup material. and an electromagnetic shielding window in which a joint end of the electromagnetic shielding windowpane and the mullion are sealed with a structural sealant, the structural sealant sealing between the mullion and the electromagnetic shielding member of the electromagnetic shielding windowpane. An electromagnetic shielding window characterized by being a conductive sealant that electrically connects.