JP2002021446A - Electromagnetic wave shield window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic wave shield window, enabling the reduction of the cost required for the elimination of an insulating coating by appropriately adopting a dielectric connection according to a target frequency band into the conducting forms of respective joining parts constituting the electromagnetic wave shield sash window while securing the electromagnetic wave shield performance of 30 db or below. SOLUTION: In the electromagnetic wave shield window 10, electromagnetic wave shield glass 1 and a sash frame 2 are brought into conduction in such a manner as to be taken as an integral electric conductor by interposing conductive packer 61, 71, and 72 in between for the purpose of establishing the electromagnetic wave shield performance of 30 db or below. The conduction of the sash frame 2 is characteristically taken as the dielectric connection 16 according to the target frequency band. Cost saving and performance assurance are brought about by omitting the elimination of the insulating coating on the surface of the sash member constituting the sash frame.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic wave shielding window, and more particularly, to an electromagnetic wave shielding window in which an electromagnetic wave shielding performance of 30 dB or less is established. The present invention relates to an electromagnetic wave shielding window for reducing costs by adopting a dielectric connection instead of a direct connection from which the noise is removed.

[0002]

2. Description of the Related Art Recent office buildings are required to respond sufficiently to the introduction of advanced information equipment such as OA equipment and personal computers and information systems using the same in response to the information age. There is a tendency for the building itself to shield electromagnetic waves for reasons.

[0003] In other words, the required performance required of an office building in the information age is, firstly, "prevention of malfunction of information equipment" which protects equipment inside the office building from unnecessary radiation from outside.
The second is "securing information security" for blocking information leaked as low-level radio waves from a computer system in an office building or a wireless LAN to the outside.
Third, in order to eliminate shortage of channels due to mutual interference of communication carriers when a wireless LAN or the like is used between adjacent office buildings, “advanced use of radio frequency” has been achieved.

[0004] These electromagnetic wave shielding office buildings deal with the first problems mentioned above by applying an electromagnetic wave shield of about 30 dB at 25 MHz to 1 GHz, and address the second problem with important meetings. In a room such as a room, an electromagnetic wave shield having a high level of 40 dB may be required. When the use of multimedia systems and the use of wireless systems such as office PHS and wireless LAN become widespread in offices, the third problem of congestion in a specific frequency band is 25 MHz.
It is required to secure a communication cell of about 20 dB at up to 3 GHz.

As described above, in order to ensure the sound and reliable operation of the OA equipment and the wireless system in the office building and prevent leakage of confidential information, the entire office building is completely shielded from electromagnetic waves with a predetermined performance. For this reason, recent electromagnetic shielding buildings have adopted electromagnetic shielding glass to ensure sufficient lighting in the room.

[0006] However, the electromagnetic shielding window used in the construction for ensuring the performance of 30 dB or less is shown in FIGS.
As shown in Fig. 9, the electromagnetic shielding glass, conductive packer, conductive gasket, upper and lower sash frames, etc. are electrically connected to each other to form an integrated conductor, which is then connected to the metal part of the frame to ground. Is formed.

[0007] For this reason, it is necessary to remove the insulating film present on the surface of each member forming the sash frame in the following portion constituting the joint portion in the sash frame. It has been necessary to omit the formation of the electrolytic coloring material in the manufacturing process or to remove the insulating film on site to secure conductivity.

[0008] A conductive portion with a gasket connected to the electromagnetic wave shielding glass. Fitting part between sash members. Butt at corner of sash member. Connection with the electromagnetic wave shielding material on the wall.

FIG. 7 is a sectional view (a) showing a conventional electromagnetic wave shielding window, and FIG. 7 (b) is a view (b) taken along the arrow (b)-(b) in the sectional view (a).

The electromagnetic wave shielding window 50 is constructed by mounting the electromagnetic wave shielding glass 1 on the sash frame 2 and stopping it with the ridge 3 to conduct the electromagnetic wave shielding glass 1 and the sash frame 2 as an integral conductor 4. By connecting this to the electromagnetic wave shielding material 5 of the wall, the electromagnetic wave shielding state of the building structure is formed.

For this purpose, the sash frame 2 and the pressing edge 3 are connected to the gasket connected to the electromagnetic wave shielding glass 56 and the fitting portion 5 between the sash members.
7. In each part of the abutting portion 58 at the corner of the sash member and the connecting portion 59 of the wall with the electromagnetic wave shielding material,
It is necessary to form a conductive state.

FIGS. 8 and 9 are partial perspective views showing the conductive state in each of these parts, and show details of the conductive state.

The above-mentioned conductive portion 56 for connecting to the electromagnetic wave shielding glass and the gasket is connected to the surface of the electromagnetic wave shielding glass 1 on which a conductive thin film is attached and which constitutes a part of the conductor 4. It is configured by forming a conductive state with the side surface of the pressing edge 3 joined with the conductive packer 61 interposed therebetween. For this purpose, as shown in FIG. 8, the surface of the upper and lower ridges 31, 32 and the vertical ridge 33 in contact with the conductive packer 61 is stripped of the electrolytic coloring material to expose the aluminum material.

The conductive state of the fitting portion 57 between the sash members, which is the above-mentioned portion, is such that the upper and lower sash frames 21 and 22 and the upper and lower ridges 31 and 32 and the sash cubic 23 and the vertical ridge 33 are electrically conductive packers 71 and 72. It is formed by making each surface joined by interposing a conductive state. For this,
The surface 24 of the upper and lower sash frames 21 and 22 and the surface 35 of the upper and lower ridges 31 and 32 that are in contact with the conductive packer 71 are exposed from the electrolytic coloring material to expose the aluminum material. The surface 25 of the sash square 23 and the surface 36 of the vertical ridge 33 are also peeled from the electrolytic coloring material.

The conductive state of the projecting portion 58 at the corner of the sash member, which is the above-mentioned portion, is determined by the upper pressing edge 3.
1 and the vertical ridge 33 and the lower ridge 32 and the vertical ridge 33 are separated from each other by peeling off the electrolytic coloring material and covering the exposed aluminum material with a conductive tape 73 to remove the gap. It is configured in a lost conductive state.

Further, as shown in the perspective view of FIG. 9, the connecting portion 59 of the wall, which forms the above-mentioned portion, with the electromagnetic wave shielding material, constitutes a part of the conductor 4. And the upper and lower sash frames 21, 22 and cubic 23 are formed in a conductive state with a conductor 91 interposed therebetween. For this purpose, as shown in FIG.
Upper and lower sash frames 21, 22 and cubic 23 in contact with
The surface 26 is exposed from the electrolytic coloring material to expose the aluminum material.

As described above, the formation of the conductor in the conventional electromagnetic shielding glass window is performed by using the electrolytic coloring material or the insulating film formed on the surface of each sash frame, sill, and each ridge which comes into contact with the conductive packer or the like. Construction has been performed while ensuring conductivity by peeling the entire surface.

However, the peeling of the insulating film and the securing of the conductivity require a lot of time in the following points, so that the cost and the construction period are increased, and the rework of poor connection is apt to occur. However, it has been pointed out as a problem, and has been a major factor in increasing the cost of electromagnetic shielding work.

It is impossible for the manufacturer to guarantee the performance of the sash frame for a glass window. Detailed stripping operations require a great deal of labor and time. Since the peeled surface is damaged, a corrosion phenomenon of the sash frame occurs. In order to secure a conductive state, it is necessary to attach a conductive tape to the release surface. In order to increase the conductivity, it is necessary to reduce the interval between tapping screws.

[0020]

SUMMARY OF THE INVENTION The present invention is a concrete improvement proposal in view of the above-mentioned problem in the construction site of an electromagnetic wave shielding building. The electromagnetic wave shielding window is secured while ensuring an electromagnetic wave shielding performance of 30 dB or less. The conduction mode at each of the above-mentioned joints is not limited to the direct connection in which the insulating film present on the surface is removed, but the dielectric connection is appropriately adopted in accordance with the frequency band to be used. An electromagnetic shielding window that can reduce the cost required for removal is provided.

[0021]

According to the first aspect of the present invention, there is provided an electromagnetic wave shielding window, wherein an electromagnetic wave shielding glass and a sash frame are electrically connected to each other as an integral electric conductor by interposing a conductive material so that the electromagnetic wave shielding window is 30 dB or less. In the electromagnetic wave shielding window which has established the shielding performance, the conduction of the sash frame is characterized by dielectric connection according to the frequency band to be targeted, and it is present on the surface of the sash member forming the sash frame The removal of the insulating film is omitted.

The electromagnetic wave shielding window according to the second and third aspects of the present invention is the electromagnetic wave shielding window according to the first aspect, wherein in the frequency band of 1 to 6 GHz, all the conductive forms of the sash frame are insulated by the sash frame. It is characterized by a dielectric connection formed by the formation of a film, and in addition to the above functions, the removal of the insulating film present in all the sash members constituting the sash frame is omitted.

According to a fourth aspect of the present invention, there is provided an electromagnetic wave shielding window according to the first aspect, wherein only a fitting portion between sash members is an insulating film in a frequency band of 25 MHz to less than 1 GHz. It is characterized in that it is a dielectric connection constituted by the formation of, in addition to the above functions, omitting the removal of the insulating film existing only in the fitting portion between the sash members constituting the sash frame I have.

According to a sixth aspect of the present invention, there is provided an electromagnetic wave shielding window according to the first aspect, wherein only a corner abutting portion of the sash member is coated with an insulating film in a frequency band of 25 MHz to less than 1 GHz. It is characterized by forming a dielectric connection by forming a conductive material
In addition to the above functions, the removal of the insulating film existing only in the fitting portion between the sash members forming the sash frame is omitted.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electromagnetic wave shielding window according to the present invention basically has an electromagnetic wave shielding glass and a sash frame which are electrically conductive as an integral conductor by interposing a conductive material such as a conductive packer so that the electromagnetic wave shielding window is 30 dB or less. Electromagnetic wave shielding windows that have established shielding performance are characterized in that the conduction of the sash frame is made to a dielectric connection in accordance with the frequency band of interest, and specifically, in the frequency band of 1 to 6 GHz, 25. All conductive forms of the frame are dielectric connections consisting of the formation of an insulating coating on the sash frame,
In the frequency band from MHz to less than 1 GHz, only the fitting portion between the sash members is formed by forming an insulating film, or only the corner protruding portion of the sash member is formed by forming an insulating film and a conductive material such as a conductive sealer is interposed. In this case, a dielectric connection is made.

Hereinafter, embodiments of the present invention will be described with reference to the drawings, and the same parts as those in the related art are denoted by the same reference numerals.

FIG. 1 is an elevational sectional view of an electromagnetic wave shielding window according to the present invention, and FIG. 2 is a plan sectional view.

In the figure, 1 is an electromagnetic wave shielding glass,
Reference numeral 2 denotes a sash frame, and the electromagnetic wave shielding glass 1 is attached to the sash frame 2 and is stopped by the ridges 3 to form an electromagnetic wave shielding glass window 10. The electromagnetic wave shielding glass window 10 is attached to the opening 11 of the building structure. It is inserted. The sash frame 2 includes an upper sash frame 21 and a lower sash frame 22.
And the ridges 23, and the ridge 3 is composed of upper and lower ridges 31, 32 and a vertical ridge 33.

The characteristic of the electromagnetic wave shielding glass window according to the present invention is that, in order to establish the electromagnetic wave shielding performance of 30 dB or less, the sash is changed depending on the frequency band that the building structure to which the electromagnetic wave shielding glass window 10 is applied is subjected to the electromagnetic wave shielding. A joining mechanism for forming a conductive state of the fitting portion 12 between the members, the abutting portion 13 at the corner of the sash member, the conducting portion 14 connected to the electromagnetic wave shielding glass 1 by the gasket, and the connecting portion 15 with the electromagnetic wave shielding material of the wall. The point is that they are different.

That is, the electromagnetic wave shielding glass window 10 according to the present invention employs a configuration described below to establish an electromagnetic wave shielding performance of 30 dB or less in a frequency band of 25 MHz to 3 GHz.

The conductive state of the fitting portion 12 between the sash members is such that the upper and lower sash frames 21 and 22 and the upper and lower ridges 31 and 32 and the sash cubicle 23 and the vertical ridge 33 are electrically conductive packers 71 and 7.
2 is formed by making each surface joined by interposing the conductive member 2 into a conductive state. However, the joining mechanism for forming the conductive state is different from the conventional one. 4.

The dielectric connection 16 is formed by interposing a conductor between electrodes whose surfaces are made of an insulator, and conducts only a high-frequency current. The surface 24 of the sash frames 21 and 22 and the surface 35 of the upper and lower pressing edges 31 and 32 are shown in FIG.
As shown in (b), the electrolytic colorant is not peeled off.
As shown in FIG. 3 (c), the surface 25 of No. 3 and the surface 36 of the vertical ridge 33 are not peeled off of the electrolytic coloring material.

Similarly, as shown in FIG. 4, the conductive state of the projecting portion 13 at the corner of the sash member is such that the electrolytic coloring material covering the projecting portions of the lower ridge 32 and the vertical ridge 33 is peeled off. Although not shown in the drawing, the electrolytic coloring material covering the projecting portions of the upper ridge 31 and the vertical ridge 33 is also left as it is without being peeled off. The dielectric connection 16 is formed by interposing the conductive sealer 81 (see FIG. 2). Thereby, the joining mechanism for forming the conductive state forms a part of the conductor 4 with a coupling structure different from the conventional one.

In the above description, the conductive packer and the conductive sealer are interposed as examples of the conductive material. However, the conductive material is not limited to this. It is possible to adopt a member commonly used for a sash window such as a conductive member by making the member conductive.

The conductive portion 14 connected to the electromagnetic wave shielding glass 1 by the gasket and the connecting portion 15 to the electromagnetic wave shielding material on the wall are formed in a frequency band of 25 MHz to less than 1 GHz, and 1 GHz to 6 GHz. The structure is different between the case of targeting the frequency band of FIG.

That is, when targeting the frequency band of 25 MHz to less than 1 GHz, the joining mechanism for forming the conductive portion is formed of the upper and lower ridges 31 and 32 and the vertical ridge 33 in contact with the conductive packer 61 as in the conventional case. Surface 34 is shown in FIG.
As shown in (a), (b) and (c), the aluminum material is exposed by peeling off the electrolytic coloring material, and the upper and lower sash frames 21 and 22 that come into contact with the conductors 91 and 4 and the cubicles The surface 26 of 23 also exposes the aluminum material by removing the electrolytic coloring material.

In the selection of the above configuration, the formation of the conductive portion 14 connected to the electromagnetic wave shielding glass 1 by the gasket and the connection portion 15 of the electromagnetic wave shielding material on the wall is compared with the fitting and abutting of the sash members described above. This is because there is a concern about the occurrence of a state of lack of reliability in terms of accuracy in the processing and construction of the joining members, and in such a situation, 25 MHz to 1
This is because, in a frequency band lower than GHz, the establishment of the performance of forming the dielectric connection becomes unstable, so that even if the cost is required, the establishment of the electromagnetic wave shielding performance has priority.

On the other hand, when the frequency band of 1 to 6 GHz is targeted, the surface of the electromagnetic wave shielding glass 1 and the side surface of the pressing edge 3 joined with the conductive packer 61 therebetween are brought into a conductive state. Although it is formed, the joining mechanism for forming the conductive state is different from the conventional one.
, A part of the conductor 4 is formed. Therefore, as shown in FIG. 3, the upper and lower ridges 31, 32 and the surface 34 of the ridge 33 in contact with the conductive packer 61 do not peel off the electrolytic coloring material, so that the aluminum material is not exposed.

Further, a connecting portion 15 for connecting the electromagnetic wave shielding material to the wall is provided.
Also, the metal part of the building structure forming a part of the conductor 4 and the upper and lower sash frames 21, 22 and the cubic 23 are formed in a conductive state with the conductor 91 interposed therebetween. However, the conduction state is formed by adopting the dielectric connection 16 differently from the conventional bonding mechanism for forming the conduction state. For this reason, as shown in FIG.
Upper and lower sash frames 21, 22 and cubic 23 in contact with
The surface 26 does not peel off the electrolytic coloring material, so that the aluminum material is not exposed.

Measurements were made to confirm the shielding performance of the electromagnetic wave shielding glass window according to the present invention. This measurement was performed using the devices and antennas shown in the table of FIG. 5, and the measurement results of the shielding performance are shown in the graph of FIG. And as is clear from the measurement data of the graph, the electromagnetic wave shielding glass window according to the present invention is 30 d
It has been confirmed that electromagnetic wave shielding performance of B or less is sufficiently ensured.

As described above, the electromagnetic shielding glass window according to the present invention provides an electromagnetic shielding capable of establishing an electromagnetic shielding performance of 30 dB or less by conducting the sash frame in a dielectric connection in accordance with the target frequency band. To eliminate the need to peel off the aluminum material by stripping the electrolytic coloring material in the sash frame, etc., to reduce the manufacturing cost, guarantee the performance, and shorten the construction period of the electromagnetic shielding glass window Can be.

Although the present invention has been described in detail based on the embodiments, the electromagnetic wave shielding glass window according to the present invention is not limited to the above embodiments, and does not depart from the spirit of the present invention. Of course, various changes are possible within the scope.

[0043]

The electromagnetic wave shielding window according to the first aspect of the present invention has a structure in which the electromagnetic wave shielding glass and the sash frame are electrically connected as an integral conductor by interposing a conductive material.
In the electromagnetic wave shielding window which has established the electromagnetic wave shielding performance of 0 dB or less, the sash frame is constituted by conducting dielectric connection according to the target frequency band. By omitting according to the frequency band targeted for removal of the insulating film present on the surface of the surface, it is possible to reduce the manufacturing cost of the electromagnetic wave shielding glass window, guarantee the performance and shorten the construction period I have.

The electromagnetic shield window according to the second and third aspects of the present invention is the electromagnetic shield window according to the first aspect, wherein in the frequency band of 1 to 6 GHz, all the conductive forms of the sash frame are insulated by the sash frame. Since it is characterized by a dielectric connection composed of a film formation, the effect of omitting the removal of the insulating film present in all the sash members constituting the sash frame is further enhanced. are doing.

According to a fourth aspect of the present invention, there is provided the electromagnetic wave shielding window according to the first aspect, wherein only the fitting portion between the sash members is an insulating film in a frequency band of 25 MHz to less than 1 GHz. Is characterized by a dielectric connection formed by the formation of
In the frequency band from Hz to less than 1 GHz, the removal of the insulating film existing at the fitting portion between the sash members forming the sash frame is omitted, and the effect of reducing the manufacturing cost is exhibited.

According to a sixth aspect of the present invention, there is provided an electromagnetic wave shielding window according to the first aspect of the present invention, wherein in a frequency band of 25 MHz to less than 1 GHz, only an insulating coating is formed on the corner protruding portion of the sash member. And a dielectric connection through the interposition of a conductive material, so that the removal of the insulating film present at the corner butting portion of the sash member constituting the sash frame in the frequency band of 25 MHz to less than 1 GHz is performed. It is effective in reducing the manufacturing cost by omitting it.

[Brief description of the drawings]

FIG. 1 is an elevational sectional view of an electromagnetic wave shielding glass window according to the present invention.

FIG. 2 is a plan sectional view of an electromagnetic wave shielding glass window according to the present invention.

FIG. 3 is a side view showing a sash frame and a ridge forming the electromagnetic wave shielding glass window according to the present invention.

FIG. 4 is an exploded perspective view showing an abutting state of a pressing edge of the electromagnetic wave shielding glass window according to the present invention.

Fig. 5: List of measuring instruments for measuring electromagnetic wave shielding characteristics

FIG. 6 is a graph showing electromagnetic wave shielding characteristics of an electromagnetic wave shielding glass window according to the present invention.

FIG. 7 is a vertical sectional view of a conventional electromagnetic shielding glass window.

FIG. 8 is a partial perspective view of a conventional electromagnetic wave shielding glass window viewed from the outside.

FIG. 9 is a partial perspective view of a conventional electromagnetic wave shielding glass window viewed from the inside.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Electromagnetic wave shielding glass, 2 Sash frame, 3 Edge, 4 Conductor, 5 Wall conductor, 10 Electromagnetic wave shielding glass window, 11 Opening of building structure, 12 Joint between sashes, 13 Corner of sash member Abutting part, 14 conducting part with gasket, 15 connecting part with electromagnetic wave shield on wall, 16 dielectric connection, 21 upper sash frame, 22 lower sash frame, 23 sash square,
24 Surface of upper and lower sash frames, 25 Surface of sash square, 26 Sash frame, surface of square, 31 Upper ridge,
32 Lower ridge, 33 Vertical ridge, 34 Surface of vertical ridge,
35 Upper and lower ridge surface, 36 Vertical ridge surface, 56
Conductive part with gasket, Fitting part between 57 sashes,
58 abutting portion at corner of sash member, 59 connecting portion with wall electromagnetic wave shield, 61, 71, 72 conductive packer, 73 conductive tape, 81 conductive sealer,
91 conductor,

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shinichi Shibuya 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Yuji Yamakawa 1-2-3 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Shinji Horiguchi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Yukio Kitahashi 70 Hayakawa, Takaoka City, Toyama Prefecture Sankyo Aluminum Industry Co., Ltd. (72 ) Inventor Shigeto Koizumi 70 Hayakawa, Takaoka City, Toyama Prefecture, Sankyo Aluminum Industry Co., Ltd. (72) Inventor Masayoshi Kita 70 Hayakawa, Takaoka City, Toyama Prefecture F-term in Sankyo Aluminum Industry Co., Ltd. 5E321 AA46 CC16 GG05

Claims (7)

[Claims] 1. An electromagnetic wave shielding window in which an electromagnetic wave shielding glass and a sash frame are electrically connected as an integral conductor by interposing a conductive material to establish an electromagnetic wave shielding performance of 30 dB or less. An electromagnetic wave shielding window, wherein the conduction of the sash frame is changed to a dielectric connection in response. 2. The electromagnetic wave shielding window according to claim 1, wherein in a frequency band of 1 to 6 GHz, all the conductive forms of the sash frame are connected by a dielectric. 3. The electromagnetic shield window according to claim 2, wherein the dielectric connection is formed by forming an insulating film on the sash frame. 4. The electromagnetic wave shielding window according to claim 1, wherein only a fitting portion between the sash members is dielectrically connected in a frequency band of 25 MHz to less than 1 GHz. 5. The electromagnetic wave shielding window according to claim 4, wherein the dielectric connection is formed by forming an insulating film at a fitting portion between the sash members. 6. The electromagnetic wave shielding window according to claim 1, wherein in a frequency band of 25 MHz to less than 1 GHz, only the corner protruding portions of the sash member are connected by a dielectric. 7. The electromagnetic wave shielding window according to claim 6, wherein the dielectric connection is formed by forming an insulating film at a corner protruding portion of the sash member and interposing a conductive material.