JPH01179497A - Electromagnetically shielded cellar - Google Patents
Electromagnetically shielded cellarInfo
- Publication number
- JPH01179497A JPH01179497A JP63001074A JP107488A JPH01179497A JP H01179497 A JPH01179497 A JP H01179497A JP 63001074 A JP63001074 A JP 63001074A JP 107488 A JP107488 A JP 107488A JP H01179497 A JPH01179497 A JP H01179497A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic
- ceiling
- floor
- wall
- electromagnetic shielding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 62
- 230000002238 attenuated effect Effects 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 3
- 230000000644 propagated effect Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 7
- 239000006096 absorbing agent Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000006247 magnetic powder Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Residential Or Office Buildings (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Building Environments (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、外部からの外来電波等の電磁波を遮断すると
ともに外部への不要電磁波の放射を防止する電磁波シー
ルド地下室に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electromagnetic shield basement that blocks electromagnetic waves such as external radio waves from the outside and prevents unnecessary electromagnetic waves from being radiated to the outside.
今日、コンピュータ等の情報通信設備を共同利用し、ビ
ル内や外部との情報通信を行なういわゆるインテリジェ
ントビルの要請が強く成ってきている。Nowadays, there is a growing demand for so-called intelligent buildings in which computers and other information communication equipment are shared and information communication is carried out within the building and with the outside.
ビル内では、情報通信に電波を使用することが多く、外
部からの電波、ノイズ電波の放出、ビル内部のテレビ中
間周波等により情報通信機器が誤動作することがある。Inside buildings, radio waves are often used for information communication, and information and communication equipment may malfunction due to radio waves from outside, emission of noise radio waves, intermediate frequency of televisions inside the building, etc.
そこで、室外の空間と電磁的に遮断するため、天井、壁
、床の構造自体を電磁波シールド材で構成したり、或い
は、天井、壁、床に電磁波シールド材を貼着して築造さ
れる電磁波シールド室が必要になる。Therefore, in order to electromagnetically isolate it from the outdoor space, the structure of the ceiling, walls, and floor itself is made of electromagnetic shielding material, or electromagnetic shielding material is attached to the ceiling, walls, and floor to prevent electromagnetic waves. A shield room is required.
通常、電磁波シールド室は、ビル等の建築物の地上の部
分に造られているが、空中を往来する各種波長の電磁波
をシールドするため、高性能の電磁波シールド材が必要
になる。かかる高性能の電磁波シールド材として、例え
ば、特開昭５６−１３０９９９号公報゛に示すように、
導電率の異なる材料を重ね合わせた層構造の電波吸収体
が知られ、電磁波シールド室の天井、壁、床に使用され
ている。Usually, an electromagnetic shielding room is built in the above-ground part of a building or other structure, but in order to shield electromagnetic waves of various wavelengths that travel through the air, a high-performance electromagnetic shielding material is required. As such a high-performance electromagnetic shielding material, for example, as shown in Japanese Patent Application Laid-open No. 130999/1983,
Radio wave absorbers with a layered structure made of overlapping materials with different conductivities are known and are used for the ceilings, walls, and floors of electromagnetic shielding rooms.
ところが、電磁波シールド室の天井、壁、床に使用され
る多層構造の電波吸収体では、広範囲の帯域の電磁波が
シールドされると共に、電磁波が低導電率媒体から高導
電率媒体に至る界面で大きく反射されるなどの屈折１反
射の原理を応用し、高減衰シールド性が得られる反面、
製造上、多層に形成する工程が必要なため、一般に高価
となる。However, the multilayered radio wave absorbers used for the ceiling, walls, and floor of electromagnetic shielding rooms shield electromagnetic waves in a wide range of bands, and at the same time, the electromagnetic waves are greatly reduced at the interface from a low conductivity medium to a high conductivity medium. Applying the principle of refraction and reflection, such as being reflected, high attenuation shielding properties can be obtained, but on the other hand,
Since the manufacturing process requires a process of forming multiple layers, it is generally expensive.
電磁波シールドが高性能の電磁波シールド室を築造する
際、その天井、壁、床の全面に、上記の多層構造の電波
吸収体を使用することが望ましいが、電磁波シールド室
に使用される多層構造の電波吸収体の表面積が大きくな
り、それだけコストがアップする。When constructing an electromagnetic shielding room with high performance electromagnetic shielding, it is desirable to use the multilayered radio wave absorber described above on the entire surface of the ceiling, walls, and floor. As the surface area of the radio wave absorber increases, the cost increases accordingly.
本発明は、上述の問題点を解決するためになされたもの
で、その目的は、高性能の電磁波シールド性能を確保し
つつコストを低減した電磁波シールド地下室を提供する
ことである。The present invention has been made to solve the above-mentioned problems, and its purpose is to provide an electromagnetic shielding basement that reduces costs while ensuring high-performance electromagnetic shielding performance.
上記目的を達成するために、本発明は、壁及び床を地下
に配置し、この壁及び床の一部または全部を、所定の電
磁波シールド性能を有する電磁波シールド材により構成
するとともに、天井を地面の下に埋設しないように配置
し、この天井の一部または全部を、壁及び床の両型磁波
シールド材の電磁波シールド性能よりも電磁波シールド
性能の良い電磁波シールド材により構成したものである
。In order to achieve the above object, the present invention provides walls and floors that are placed underground, a part or all of these walls and floors being made of an electromagnetic shielding material having a predetermined electromagnetic shielding performance, and a ceiling that is placed underground. Part or all of this ceiling is made of an electromagnetic shielding material that has better electromagnetic shielding performance than both types of magnetic shielding materials for walls and floors.
本発明においては、空中から地下に入って壁及び床に到
達する間に減衰した電磁波が、壁及び床の電磁波シール
ド材によりシールドされる。従って、壁及び床の電磁波
シールド材の電磁波シールド性能が、天井の電磁波シー
ルド材の電磁波シールド性能より低くても、壁及び床を
通って減衰した電磁波は、天井を通って減衰した電磁波
の電磁界強度と同程度に減衰されている。In the present invention, electromagnetic waves that enter underground from the air and are attenuated while reaching the walls and floor are shielded by the electromagnetic wave shielding material of the walls and floor. Therefore, even if the electromagnetic shielding performance of the electromagnetic shielding material on the walls and floor is lower than the electromagnetic shielding performance of the electromagnetic shielding material on the ceiling, the electromagnetic wave attenuated through the wall and floor will be affected by the electromagnetic field of the electromagnetic wave attenuated through the ceiling. It is attenuated to the same extent as the intensity.
また、電磁波シールド地下室の壁及び床から空中に放射
された電波等の電磁波は、地下を通る間に減衰するので
、天井の電磁波シールド材により減衰された電磁波と同
程度に減衰されている。In addition, electromagnetic waves such as radio waves radiated into the air from the walls and floor of the electromagnetic shield basement are attenuated while passing through the basement, so they are attenuated to the same extent as the electromagnetic waves that are attenuated by the electromagnetic shield material on the ceiling.
以下、図面により本発明の実施例について説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図ないし第４図は本発明の実施例に係る電磁波シー
ルド地下室を示す。1 to 4 show an electromagnetic shielding basement according to an embodiment of the present invention.
第１図において、１は電磁波シールド地下室で、天井２
と、壁３と、床４とから構成されている。In Figure 1, 1 is the electromagnetic shield basement, and the ceiling 2
It consists of a wall 3, and a floor 4.
天井２は、地面から若干低い位置に配置され、天井壁材
５と天井用電磁波シールド材６とから構成されている。The ceiling 2 is arranged at a slightly lower position from the ground, and is composed of a ceiling wall material 5 and a ceiling electromagnetic wave shielding material 6.
第２図に示すように、天井用電磁波シールド材６は、鉄
板２ＯＡの両面に亜鉛２０Ｂを溶射した二重シールドの
両面亜鉛鉄板で構成されており、高減衰電磁波シールド
性を確保している。壁３は、地下に配置され、側壁ブロ
ック７と壁用電磁波シールド材８とから構成されている
。As shown in FIG. 2, the electromagnetic wave shielding material 6 for the ceiling is composed of a double-shield double-sided galvanized iron plate in which zinc 20B is sprayed on both sides of the iron plate 2OA, ensuring high attenuation electromagnetic wave shielding properties. The wall 3 is placed underground and is composed of a side wall block 7 and a wall electromagnetic shielding material 8.
第３図に示すように、壁用電磁波シールド材８は、鉄板
２０Ａの片面に亜鉛２０Ｂを溶射した一重シールドの亜
鉛鉄板で成る。床４は、地下に配置され、床ブロック９
と床用電磁波シールド材１０とから構成されている。第
３図に示すように、床用電磁波シールド材１０は、鉄板
２０Ａの片面に亜鉛２０Ｂを溶射した一重シールドの亜
鉛鉄板で成る。As shown in FIG. 3, the wall electromagnetic shielding material 8 is made of a single-shield galvanized iron plate in which zinc 20B is sprayed on one side of an iron plate 20A. Floor 4 is located underground, and floor block 9
and an electromagnetic wave shielding material 10 for the floor. As shown in FIG. 3, the floor electromagnetic shielding material 10 is made of a single-shield galvanized iron plate in which zinc 20B is sprayed on one side of an iron plate 20A.
従って、壁及び床用の電磁波シールド材８．ｌＯの電磁
波シールド性能は同じ性能になっているが、天井２の天
井用電磁波シールド材６の電磁波シールド性能は、壁及
び床用の電磁波シールド材８．１０の電磁波シールド性
能よりも低くなっている。Therefore, electromagnetic shielding material for walls and floors 8. Although the electromagnetic shielding performance of IO is the same, the electromagnetic shielding performance of the ceiling electromagnetic shielding material 6 of the ceiling 2 is lower than that of the electromagnetic shielding material 8.10 for walls and floors. .
そして、電磁波シールド地下室１の周りにはフリーアク
セス１１が設置され、さらに、このフリーアクセス１１
の両側及び上側には、山土壁１２が設置されている。第
４図に示すように、この山土壁１２は、磁性体の粉末を
含んだコンクリート材１２Ａと鉄筋１２Ｂとから成り、
この磁性体の粉末により電磁波の低周波磁界がシールド
される。A free access 11 is installed around the electromagnetic shield basement 1, and furthermore, this free access 11
Mountain earth walls 12 are installed on both sides and above. As shown in FIG. 4, this mountain earth wall 12 is made of concrete material 12A containing magnetic powder and reinforcing bars 12B.
This magnetic powder shields the low frequency magnetic field of electromagnetic waves.
次に、本実施例の作用、効果を説明する。Next, the functions and effects of this embodiment will be explained.
空中から伝播されて来る外来電波等の電磁波は、その一
部が地表で反射され、一部が地下に入り、減衰する。さ
らに、電磁波は山土壁１２でシールドされ、減衰し、電
磁波シールド地下室ｌの壁３及び床４に到達する。この
減衰した電磁波が、壁及び床用の電磁波シールド材８．
１０によりシールドされる。従って、壁及び床用の電磁
波シールド材８．１０の電磁波シールド性能が、天井用
電磁波シールド材６の電磁波シールド性能より低くても
、壁３及び床４を通って減衰した電磁波は、天井２を通
って減衰した電磁波と同程度に減衰されている。A portion of electromagnetic waves such as foreign radio waves propagated from the air is reflected by the ground surface, and a portion of it enters the underground, where it is attenuated. Further, the electromagnetic waves are shielded by the earthen walls 12, attenuated, and reach the walls 3 and floor 4 of the electromagnetic shielding basement l. This attenuated electromagnetic wave is transmitted to electromagnetic wave shielding material for walls and floors8.
Shielded by 10. Therefore, even if the electromagnetic wave shielding performance of the electromagnetic wave shielding material 8.10 for walls and floors is lower than the electromagnetic wave shielding performance of the electromagnetic wave shielding material 6 for ceilings, the electromagnetic waves attenuated through the walls 3 and floor 4 will not pass through the ceiling 2. It is attenuated to the same extent as the electromagnetic waves that pass through it.
また、電磁波シールド地下室１の壁３及び床４から空中
に放射された電波等の電磁波は、地下を通る間に減衰す
るので、天井用電磁波シールド材６により減衰された電
磁波と同程度に減衰されている。In addition, electromagnetic waves such as radio waves radiated into the air from the walls 3 and floor 4 of the electromagnetic shielding basement 1 are attenuated while passing underground, so they are attenuated to the same extent as the electromagnetic waves attenuated by the ceiling electromagnetic shielding material 6. ing.
従って、壁３及び床４では、天井用電磁波シールド材６
の性能と同程度の高性能の電磁波シールド性能を確保し
たのと同等のシールド効果を得ることができる。ひいて
は、天井用電磁波シールド材６に比して、これと同性能
（例えば１１０ｄＢ以上）を確保しつつ、壁及び床用の
電磁波シールド材８．１０のグレードを落とすことがで
き、コストを低減することができる。Therefore, on the wall 3 and floor 4, the ceiling electromagnetic shielding material 6
It is possible to obtain a shielding effect equivalent to that of a high-performance electromagnetic wave shielding performance equivalent to that of . Furthermore, compared to electromagnetic wave shielding material 6 for ceilings, it is possible to lower the grade of electromagnetic wave shielding material 8.10 for walls and floors while ensuring the same performance (for example, 110 dB or more), reducing costs. be able to.
また、壁３及び床４では、それらの電磁波シールド材８
．１０の性能が低いので、メインテナンスの管理が容易
になり、従って、天井用電磁波シールド材６のみ経年的
に劣化しないようにメインテナンスの管理をすれば良い
。In addition, on the walls 3 and floor 4, those electromagnetic shielding materials 8
．． Since the performance of 10 is low, maintenance management is easy, and therefore, maintenance can be managed only to prevent the ceiling electromagnetic shielding material 6 from deteriorating over time.
なお、本実施例においては、天井２は電磁波シールド材
６を有しているが、天井自体を例えばパネル材でなる電
磁波シールド材で構成することもできる。In this embodiment, the ceiling 2 has the electromagnetic shielding material 6, but the ceiling itself may be made of an electromagnetic shielding material made of a panel material, for example.
また、本実施例においては、壁３及び床４は、それぞれ
壁用及び床用の電磁波シールド材８．１０を有している
が、壁３及び床４をそれ自体で例えば電磁波シールド性
能を有するパネルで構成することもできる。Further, in this embodiment, the wall 3 and the floor 4 have the electromagnetic shielding material 8.10 for the wall and the floor, respectively, but the wall 3 and the floor 4 have an electromagnetic shielding property by themselves, for example. It can also be composed of panels.
さらに、本実施例においては、壁用電磁波シールド材８
と床用電磁波シールド材１０の電磁波シールド性能は同
じシールド性能になっているが、異なるシールド性能に
することもできる。Furthermore, in this embodiment, the wall electromagnetic shielding material 8
Although the electromagnetic wave shielding performance of the floor electromagnetic wave shielding material 10 is the same, it is also possible to have different shielding performance.
加えて、本実施例においては、天井用電磁波シールド材
６として、二重シールドの両面亜鉛鉄板を使用している
が、かかる材料に限定されることなく、例えば銅などの
高導電性材料とケイ素鋼などの高透磁性材料を組み合わ
せてなる多層高減衰シールド構造の材料を使用すること
もできる。In addition, in this embodiment, a double-shield double-sided galvanized iron plate is used as the ceiling electromagnetic shielding material 6, but the material is not limited to such a material. For example, highly conductive materials such as copper and silicon It is also possible to use a multi-layer, high-attenuation shielding material that is made of a combination of highly permeable materials such as steel.
以上述べたように、本発明に係る電磁波シールド地下室
にあっては、壁及び床における電磁波シールド材の電磁
波シールド性能が天井における電磁波シールド性能より
低くても、地下を通る電磁波が減衰することを利用する
ことにより、電磁波が空中から電磁波シールド地下室に
到達した時には、壁及び床において天井と同程度の電磁
波シールド性能を確保する一方、室内の電磁波を電磁波
シールド地下室の壁及び床から空中に放射する時も天井
から空中に放射した場合と同程度に電磁波の減衰度を確
保することができる。従って、壁及び床では天井の電磁
波シールド性能と同程度の高性能の電磁波シールド性能
を確保したのと同等のシールド効果を得つつ、電磁波シ
ールド材のグレードを落とすことができ、コストを低減
することができる効果を奏する。As described above, in the electromagnetic shielding basement according to the present invention, even if the electromagnetic shielding performance of the electromagnetic shielding material on the walls and floor is lower than the electromagnetic shielding performance on the ceiling, the electromagnetic waves passing through the basement are attenuated. By doing so, when electromagnetic waves reach the electromagnetic shielding basement from the air, the electromagnetic shielding performance on the walls and floor is equivalent to that of the ceiling. It is also possible to ensure the same level of attenuation of electromagnetic waves as when radiating from the ceiling into the air. Therefore, it is possible to lower the grade of the electromagnetic shielding material and reduce costs while obtaining the same high-performance electromagnetic shielding performance as the ceiling's electromagnetic shielding performance on walls and floors. It produces the effect that can be achieved.
第１図は本発明の実施例に係る電磁波シールド地下室の
説明図である。
第２図は第１図における天井用電磁波シールド材の拡大
断面図である。
第３図は第１図における壁及び床用電磁波シールド材の
拡大断面図である。
第４図は第１図における山土壁の拡大断面図である。
〔主要な部分の符号の説明〕
１・・・電磁波シールド地下室
２・・・天井
３・・・壁
４・・・床
６・・・天井用電磁波シールド材
８・・・壁用電磁波シールド材
１０・・・床用電磁波シールド材。
第２１ 第３図 第４図FIG. 1 is an explanatory diagram of an electromagnetic shielding basement according to an embodiment of the present invention. FIG. 2 is an enlarged sectional view of the ceiling electromagnetic shielding material in FIG. 1. FIG. 3 is an enlarged sectional view of the wall and floor electromagnetic shielding material in FIG. 1. FIG. 4 is an enlarged sectional view of the mountain earth wall in FIG. 1. [Explanation of symbols of main parts] 1... Electromagnetic wave shield basement 2... Ceiling 3... Wall 4... Floor 6... Electromagnetic wave shielding material for ceiling 8... Electromagnetic wave shielding material for wall 10 ...Electromagnetic shielding material for floors. 21 Figure 3 Figure 4
Claims (1)
たは全部を、所定の電磁波シールド性能を有する電磁波
シールド材により構成するとともに、天井を地面の下に
埋設しないように配置し、この天井の一部または全部を
、壁及び床の両電磁波シールド材の電磁波シールド性能
よりも電磁波シールド性能の良い電磁波シールド材によ
り構成したことを特徴とする電磁波シールド地下室。(1) Walls and floors are placed underground, and part or all of these walls and floors are made of electromagnetic shielding material that has a specified electromagnetic wave shielding performance, and the ceiling is placed so that it is not buried below the ground. An electromagnetic shielding basement, characterized in that part or all of the ceiling is made of an electromagnetic shielding material that has better electromagnetic shielding performance than both the electromagnetic shielding materials of the walls and the floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63001074A JP2603670B2 (en) | 1988-01-06 | 1988-01-06 | Electromagnetic shield basement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63001074A JP2603670B2 (en) | 1988-01-06 | 1988-01-06 | Electromagnetic shield basement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01179497A true JPH01179497A (en) | 1989-07-17 |
| JP2603670B2 JP2603670B2 (en) | 1997-04-23 |
Family
ID=11491363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63001074A Expired - Fee Related JP2603670B2 (en) | 1988-01-06 | 1988-01-06 | Electromagnetic shield basement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2603670B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04203074A (en) * | 1990-11-30 | 1992-07-23 | Tomoe Corp | Electromagnetic wave shield construction |
| JP2012140779A (en) * | 2010-12-28 | 2012-07-26 | Tadamasa Yamaguchi | Welding and connecting method for shelter inner shell unit and welded and connected structure |
| CN111156286A (en) * | 2018-11-08 | 2020-05-15 | 上海音宁电子科技有限公司 | Low-frequency vibration damping and isolating system |
-
1988
- 1988-01-06 JP JP63001074A patent/JP2603670B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04203074A (en) * | 1990-11-30 | 1992-07-23 | Tomoe Corp | Electromagnetic wave shield construction |
| JP2012140779A (en) * | 2010-12-28 | 2012-07-26 | Tadamasa Yamaguchi | Welding and connecting method for shelter inner shell unit and welded and connected structure |
| CN111156286A (en) * | 2018-11-08 | 2020-05-15 | 上海音宁电子科技有限公司 | Low-frequency vibration damping and isolating system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2603670B2 (en) | 1997-04-23 |
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| Date | Code | Title | Description |
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| LAPS | Cancellation because of no payment of annual fees |