JPH11200721A - Electromagnetic shielding window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic shielding window, by which an existing glass window can be improved and executed into the electromagnetic shielding window simply at low a cost. SOLUTION: An electromagnetic shielding film 7 is stuck onto the whole exposed surface of a glass 2 on the indoor side, and a conductive tape 8 is stuck while being crossed over a glass 2 peripheral section and a sash 1 surrounding the glass 2. Accordingly, electromagnetic waves coming flying from the outside and electromagnetic waves generated in a room can be shielded surely. Since works such as the removal of the glass 2, the removal of a sealing material 6 and a backup material 5, etc., are made unnecessary, workability is improved, wind pressure resistance and watertightness are not damaged and the electromagnetic shielding window is also firm in strength.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic shielding window used to prevent an electromagnetic wave from entering the room from the outside and releasing the electromagnetic wave from the room to the outside. The present invention relates to a technology capable of performing electromagnetic shielding.

[0002]

2. Description of the Related Art In recent years, electronic devices and devices such as OA devices, communication devices, and mobile phones have been widely used, and with this, other electrical devices and electronic control devices are controlled by electromagnetic waves generated from the devices and devices. In many cases, devices malfunction or generate noise. Therefore, in order to prevent such troubles, an electromagnetic shielding window is used for a glass window installed in an office or the like to shield electromagnetic waves entering from outside through the glass.

[0003] Conventional examples of such electromagnetic shielding windows include, for example, those in which one side of glass is coated with a conductive special metal film, those in which a conductive net is sandwiched in laminated glass, and those in which the inner surface of double glazing is covered. Coatings with a conductive special metal film have been proposed and are in practical use. However, the above-mentioned glass coated with a conductive special metal layer on one side is effective for those manufactured in advance with electromagnetic shielding specifications, but when attached to an existing sash, it is already attached. It is necessary to remove the existing glass and replace it with a new electromagnetic shielding glass, which is not only troublesome to replace but also expensive.

[0004] In the case where a conductive net is sandwiched between laminated glasses, a high electromagnetic shielding effect can be obtained, but visibility is inferior due to interference of light by the net.
Further, there is a problem that the exterior cannot be used because the net is sandwiched. Further, in the case where the inside of the multi-layer glass is coated with a conductive special metal, there is a disadvantage that the entire thickness is large since the multi-layer glass is coated, and it cannot be mounted on a sash having a narrow groove width.

Another conventional example is disclosed in Japanese Patent Laid-Open No. 9-125.
No. 561 (hereinafter, referred to as a conventional example) is known. In the conventional example, an electromagnetic wave is shielded by attaching an electromagnetic shielding film to an existing window glass. FIG. 3 is an explanatory view showing the contents described in the above conventional example. When the electromagnetic shielding film 101 is attached,
After removing the sealing material 103 and the backup material 104 arranged on the indoor side of the sash 102 serving as a window frame as shown in FIG. 1A, the lower end portion of the glass 105 as shown in FIG. Spread the electromagnetic shielding film 101 up to and stick it. Thereafter, as shown in FIG. 3C, the ridge 106 (or a conductive gasket) is fitted into the groove and fixed. Thereby, a high electromagnetic shielding effect can be obtained.

However, in such a conventional example,
It is necessary to temporarily remove the sealing material 103 and the backup material 104, and also remove the sealing material 103 and the backup material 104 from the groove between the glass 105 and the sash 102, which are usually only several mm to several tens of mm. Furthermore, it is very difficult to attach the electromagnetic shielding film 101 to the glass portion of the groove.

Further, since the ridge 106 (or a conductive gasket) needs to be securely brought into contact with the sash 102 for electrical conduction, the sealing material 103 is removed and the contact between the ridge 106 and the sash is improved. Must be increased. Further, the finished state is as shown in FIG. 3C. The stability of the glass 105 is deteriorated by removing the sealing material 103 on the indoor side, and the glass 105 falls off the sash 102 due to its own weight and wind pressure. There is a risk of falling. In particular, in the case where the glass 105 is installed at a nearly horizontal angle like a skylight, the danger is high. In addition, the removal of the sealing material 103 deteriorates watertightness, and when rainwater is sprayed, there is a problem that water leaks and rainwater enters the room.

FIG. 4 shows a method of installing a glass called a back mullion construction method. As shown in the figure, in the back mullion construction method, two glasses 105a and 105b are used.
Are set horizontally, and the ends are abutted against each other with a certain gap. The sealing material 103 is filled in the gap, and a setting block 107 is arranged below the two glasses 105a and 105b so as to pass them. Then, it is fixed by the sealing material 103. And
A sash 102 is provided on the lower side of the setting block 107.
Is fixed, and the glass 105a,
105b is fixed to the building. Then, it is structurally impossible to directly apply the electromagnetic wave shielding method described in the above-described conventional example to the glasses 105a and 105b provided by such a back mullion construction method.

[0009]

As described above, the conventional electromagnetic shielding window has disadvantages such as the necessity of removing the existing glass and attaching a new glass having an electromagnetic shielding function. JP-A-9-12556
No. 1 discloses an existing glass 1
05 can be subjected to an electromagnetic shielding process, but the work of removing the sealing material 103 and the backup material 104 is required, so that workability is poor, and the strength is weakened by removing the sealing material 103, and Although a shielding effect can be obtained, problems such as falling of glass and intrusion of rainwater have occurred. Also, the glass 105a, 105 installed by the back mullion construction method
There was a drawback that b could not be subjected to electromagnetic shielding.

The present invention has been made to solve such a conventional problem, and an object thereof is to shield electromagnetic waves by a simple method without impairing the original characteristics of glass and a sash. It is an object of the present invention to provide an electromagnetic shielding window capable of performing the above.

[0011]

Means for Solving the Problems In order to achieve the above object, the invention according to claim 1 of the present application has a glass and a sash for surrounding and fixing the glass, and shields an electromagnetic wave from an external source. In the electromagnetic shielding window for preventing the electromagnetic wave from entering the room and releasing the indoor generated electromagnetic wave to the outside, the electromagnetic shielding film is stuck on the entire glass exposed surface on the indoor side, and further,
It is characterized in that a conductive tape is stuck over the glass peripheral portion and a sash surrounding the glass.

The invention according to claim 2 is characterized in that the sticking portion of the conductive tape is pressed and fixed with an angle material. The invention according to claim 3 is characterized in that the conductive tape is obtained by attaching an adhesive to a metal foil, or by attaching a conductive material to a woven or nonwoven fabric and further attaching an adhesive. And The invention according to claim 4 is characterized in that the electromagnetic shielding film is obtained by attaching an adhesive to a transparent film in which a conductive thin film is formed on a resin film.

[0013] In the electromagnetic shielding window of the present invention configured as described above, an electromagnetic shielding film is attached so as to cover the entire glass inner portion of the existing window glass, and a sash surrounding the glass is further provided. Since the conductive tape is attached so as to straddle the glass, it is possible to shield electromagnetic waves passing through this portion. Therefore, there is no need to newly replace the electromagnetic shielding glass or the like, and the electromagnetic shielding can be easily performed, and the cost is reduced. Further, if the angle material is attached to the upper surface side of the conductive tape, the peeling of the conductive tape can be prevented, and the appearance can be further improved.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram showing a configuration of an embodiment of an electromagnetic shielding window to which the present invention is applied, and is a cross-sectional view of glass and a sash. As shown in FIG. 1, a groove 3 for inserting the glass 2 is formed in the sash 1, and a setting block 4 serving as a receiving surface of the glass 2 is provided below the groove 3. . Then, the glass 2 is inserted into almost the center of the groove 3, and both sides thereof are
That is, a backup material 5 and a sealing material 6 are mounted on the exterior side and the interior side, respectively, so that the glass 2 is firmly fixed to the groove 3.
It is designed to be fixed inside. The sealing material 6 keeps the airtightness of the glass 2 to prevent rainwater from entering and drafts from entering even when exposed to wind and rain.

An electromagnetic shielding film 7 is adhered to an exposed portion of the glass 2 on the indoor side surface, and further, between the peripheral end of the electromagnetic shielding film 7 and the sash 1 so as to straddle them. A conductive tape 8 is attached along the longitudinal direction of the sash 1.

As the electromagnetic shielding film 7, a transparent film formed by forming a conductive thin film on a resin film such as PET (polyethylene terephthalate) can be used. Can be pasted.

The conductive tape 8 is made of a metal foil such as aluminum or copper to which an adhesive is attached to have an adhesive property, or a woven or non-woven fabric of fibers such as polyester or copper or nickel or carbon. It is possible to use a material obtained by attaching a pressure-sensitive adhesive to a material plated with a conductive material so as to have an adhesive property.

Next, the operation of the present embodiment will be described. To process an existing window glass so as to have an electromagnetic shielding function, first, the glass 2 attached to the existing sash 1 must be provided on the indoor side surface. The electromagnetic shielding film 7 is stuck so as to cover the entire exposed portion. Next, as shown in FIG. 1, a conductive tape 8 is stuck to the glass 2 and the sash 1 so as to straddle the glass 2 and the sash 1 so as to electrically connect the electromagnetic shielding film 7 and the sash 1. And glass 2 and sash 1
And the gap created between them is sealed. Thereby, the glass 2
An external electromagnetic wave coming from outside of the electromagnetic shielding film 7
And is completely shielded by the conductive tape 8, causing malfunctions of OA equipment and communication equipment installed on the indoor side,
Trouble such as generation of noise can be prevented. Further, it is possible to prevent the electromagnetic waves generated in the room from being emitted to the outside.

As described above, in the electromagnetic shielding window of the present embodiment, the existing glass 2 and the sash 1 can be subjected to the electromagnetic shielding without removing the sealing material 6 and the backup material 5. Therefore, workability is good and work cost can be reduced. Further, since the sealing material 6 and the backup material 5 are not removed, the functions inherent to the glass 2 and the sash 1, that is, wind resistance,
The construction can be performed without impairing functions such as water tightness.

The electromagnetic shielding film 7 is made of PET.
By using a resin film such as that described above and forming a conductive thin film thereon, it is possible to obtain an effect of reflecting heat from sunlight, an effect of blocking ultraviolet rays, and an effect of preventing fragments from being scattered when glass is broken.

Further, a sealing material 6 and a backup material 5
Is not removed, so that the mounting strength of the glass 2 and the sash 1 does not decrease, and the danger of the glass 2 falling or falling off can be avoided. Further, the present invention can be applied to the back mullion construction method. it can. in addition,
The present invention is also applicable to glass having a curved surface, so-called bent glass.

FIG. 2 is an explanatory view showing a modification of the above-described embodiment. As shown in FIG. 2, in this modification, an L-shaped conductive member affixed between the electromagnetic shielding film 7 and the sash 1 is shown. On the outer surface side of the conductive tape 8, a metal or resin angle 9 having a square pipe shape is provided. By providing such an angle 9, peeling of the conductive tape 8 can be prevented, and appearance and appearance can be improved.

In the above-described embodiment, an example has been described in which the existing glass 2 and sash 1 are subjected to electromagnetic shielding. However, it is needless to say that the present invention can be applied to the case where a new glass 2 and sash 1 are installed. No.

[0024]

As described above, according to the present invention,
Existing glass, sash, and sealing materials can be used as they are to improve the electromagnetic shielding window, so workability at the time of installation is good, inexpensive, and the danger of falling off or falling of the glass is prevented. Can be. In addition, since the electromagnetic shielding film has a function of preventing glass from scattering, even if glass is broken by an earthquake or the like, scattering of glass fragments can be prevented.

Further, since the electromagnetic shielding film has a function of reflecting solar heat, it is possible to save indoor cooling costs. Further, since the electromagnetic shielding film also has a function of blocking ultraviolet rays, It is possible to prevent indoor furniture and furniture from being discolored by ultraviolet rays. In addition, the electromagnetic shielding window of the present invention can be applied to a back mullion construction method and a bent glass, and is versatile.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of an electromagnetic shielding window according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a configuration of an electromagnetic shielding window according to a modification of the present invention.

3A and 3B are explanatory views showing a configuration of a conventional electromagnetic shielding window, wherein FIG. 3A shows a state before construction, FIG. 3B shows a state when a film is attached, and FIG. Is shown.

FIG. 4 is an explanatory view showing a back mullion construction method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sash 2 Glass 3 Groove part 4 Setting block 5 Backup material 6 Sealing material 7 Electromagnetic shielding film 8 Conductive tape 9 Angle

Claims (4)

[Claims] 1. An electromagnetic shield comprising: a glass; and a sash for surrounding and fixing the glass. The electromagnetic shield shields electromagnetic waves to prevent external electromagnetic waves from entering a room and emitting room-generated electromagnetic waves to the outside. In the window, an electromagnetic shielding film is adhered to the entire exposed surface of the glass on the indoor side, and further, a conductive tape is attached across the glass periphery and a sash surrounding the glass. Shield window. 2. The electromagnetic shielding window according to claim 1, wherein the adhesive portion of the conductive tape is pressed and fixed with an angle material. 3. The conductive tape according to claim 1, wherein an adhesive is attached to a metal foil, or a conductive material is plated on a woven or non-woven fabric and an adhesive is further attached. 2. The electromagnetic shielding window according to 1. 4. The electromagnetic shielding window according to claim 1, wherein the electromagnetic shielding film is a transparent film in which a conductive thin film is formed on a resin film, and an adhesive is attached to the transparent film.