JP4585918B2 - Electromagnetic shielding member joining structure - Google Patents

Electromagnetic shielding member joining structure Download PDF

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JP4585918B2
JP4585918B2 JP2005161658A JP2005161658A JP4585918B2 JP 4585918 B2 JP4585918 B2 JP 4585918B2 JP 2005161658 A JP2005161658 A JP 2005161658A JP 2005161658 A JP2005161658 A JP 2005161658A JP 4585918 B2 JP4585918 B2 JP 4585918B2
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shielding member
electromagnetic wave
wave shielding
electromagnetic
electromagnetic shielding
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JP2006336289A (en
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寿一郎 岐部
完治 平城
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Tokyo Keiki Inc
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Description

本発明は,電磁波シールドルームに用いる電磁波シールド部材の接合構造に関する。
特に,床面に使用する際に好適な電磁波シールド部材の接合構造に関する。
The present invention relates to a joining structure for an electromagnetic wave shielding member used in an electromagnetic wave shielding room.
In particular, the present invention relates to an electromagnetic shielding member joining structure suitable for use on a floor surface.

MRI(磁気共鳴イメージング)検査装置等はMRI検査装置からの電磁波の漏洩や,外部からの電磁波の影響を排除するため,電磁波シールドルーム内に設置されている。   An MRI (magnetic resonance imaging) inspection device or the like is installed in an electromagnetic wave shield room in order to eliminate leakage of electromagnetic waves from the MRI inspection device and influence of external electromagnetic waves.

この電磁波シールドルームを施工する際に床面に使用する電磁波シールド部材には0.1mm前後の銅板が使用されてきた。シールドルームの床等の施工の際には,これらをシールドルームの大きさに合わせて切断し、繋ぎ目はハンダで溶接して電磁波シールドルームを構成する方法が採られていた。この銅板による施工では,厚い物は重量があり扱い難く,薄い物は破れ易い等の問題があり,また,銅板の鋭利な切断面で人体を損傷することや,銅板の接合に使われるハンダに含まれる鉛が環境問題で忌避される状況にあり、これらの使用に代わる物や処理方法が求められてきた。   A copper plate of around 0.1 mm has been used for the electromagnetic shielding member used on the floor when constructing the electromagnetic shielding room. When constructing the floor of a shield room, etc., a method was adopted in which the electromagnetic shield room was constructed by cutting them according to the size of the shield room and welding the joints with solder. In this construction using copper sheets, thick objects are heavy and difficult to handle, and thin objects are easy to break. In addition, the sharp cut surface of the copper sheet damages the human body and the solder used to join the copper sheet. There is a situation where lead contained is avoided due to environmental problems, and there has been a demand for an alternative to these uses and treatment methods.

上記課題を解決するための電磁波シールド部材として,ガラスクロスの両面にアルミ箔を接着した電磁波シールドシートが提案されている(特許文献1)。これは,複数本のガラス繊維を引揃えて形成した無撚繊維糸条などで織成したガラスクロスの表面の両面にアルミ箔を接着したシート状の電磁波シールド部材である。機械的強度にすぐれ,かつ柔軟性があり部材同士の密着性が良いので、ハンダに代わるシールドテープの使用や釘止め等でも、銅板と同等の電磁波シールド性能が期待できる。   As an electromagnetic shielding member for solving the above problems, an electromagnetic shielding sheet in which an aluminum foil is bonded to both surfaces of a glass cloth has been proposed (Patent Document 1). This is a sheet-like electromagnetic shielding member in which an aluminum foil is bonded to both surfaces of a glass cloth woven with untwisted fiber yarns formed by aligning a plurality of glass fibers. Since it has excellent mechanical strength, flexibility, and good adhesion between members, the use of shield tape instead of solder or nailing can be expected to provide electromagnetic shielding performance equivalent to that of a copper plate.

このアルミ箔・ガラスクロスの電磁波シールド部材をシールドルームに使用するためには,シールドルームの大きさに合わせて部材同士を接合する必要がある。この接合は,電磁波に対するシールド効果を達成するためにアルミ箔の導電層を電気的に接合することが必要である。この接合構造としては,図5に示すような電磁波シールド部材1の端部を重ね合わせて,両面接着テープ80で接着後,アルミ接着テープ2で止めた構造がある(特許文献1の第3図に図示)。このように,シールド性能を向上するためには,電磁波シールド部材そのものの性能ばかりでなく,それらの接合部分の構造を工夫する必要がある。   In order to use this aluminum foil / glass cloth electromagnetic shielding member in a shield room, it is necessary to join the members in accordance with the size of the shield room. In this bonding, it is necessary to electrically bond the conductive layers of aluminum foil in order to achieve a shielding effect against electromagnetic waves. As this joining structure, there is a structure in which the end portions of the electromagnetic wave shielding member 1 as shown in FIG. 5 are overlapped, bonded with a double-sided adhesive tape 80, and then fixed with an aluminum adhesive tape 2 (FIG. 3 of Patent Document 1). Shown in the figure). Thus, in order to improve the shielding performance, it is necessary to devise not only the performance of the electromagnetic wave shielding member itself but also the structure of the joint portion thereof.

特開2002−134989(電磁波遮蔽用シート)JP 2002-134989 (electromagnetic wave shielding sheet)

しかしながら,図5に示す接合構造では,下側の電磁波シールド部材1Aの下側導電層10Bは,上側の電磁波シールド部材1Bの何れの導電層(10C,10D)とも電気的に接合されていない。従って,絶縁体層の表裏両面に導電体層を備えた電磁波シールド部材を使用したとしても高い電磁波シールド性能を得ることは困難という問題があった。   However, in the bonding structure shown in FIG. 5, the lower conductive layer 10B of the lower electromagnetic wave shielding member 1A is not electrically bonded to any of the conductive layers (10C, 10D) of the upper electromagnetic wave shielding member 1B. Therefore, there is a problem that it is difficult to obtain high electromagnetic shielding performance even when an electromagnetic shielding member having a conductive layer on both the front and back sides of the insulator layer is used.

本発明は,このような問題点を解決し,取扱いが容易な電磁波シールド部材を用いて,電磁波シールド部材同士の接合部において高い電磁波シールド性能を得る構造とし,接合された電磁波シールド部材全体として高い電磁波シールド性能を達成することを目的とする。   The present invention solves such problems and has a structure that obtains high electromagnetic shielding performance at the joint between electromagnetic shielding members using an electromagnetic shielding member that is easy to handle, and is high as a whole joined electromagnetic shielding member. The object is to achieve electromagnetic shielding performance.

上記課題を解決するために,本発明請求項1に記載の発明は,絶縁体層の表裏両面に導電体層を接着して構成した電磁波シールド部材同士を接合する接合構造において、それぞれの電磁波シールド部材の端部を折り返し,折り返した側が互いに対向した状態で接合し,それぞれの電磁波シールド部材の端面は離隔させ,一方の電磁波シールド部材の表面の導電体層他方の電磁波シールド部材の表面の導電体層に,一方の電磁波シールド部材の裏面の導電体層が他方の電磁波シールド部材の裏面の導電体層に電気的に接続されていることを特徴とする。
In order to solve the above-mentioned problem, the invention according to claim 1 of the present invention is the bonding structure in which the electromagnetic wave shielding members formed by adhering the electric conductor layers to the front and back surfaces of the insulating layer are bonded to each other. folding the ends of the shield member, joined in a state folded side are opposed to each other, the end faces of each of the electromagnetic wave shielding member is spaced apart, electrically conductive layer of the surface of one of the electromagnetic wave shielding member of the other of the electromagnetic wave shielding member surface The conductor layer on the back surface of one electromagnetic wave shield member is electrically connected to the conductor layer on the back surface of the other electromagnetic wave shield member .

本発明の請求項1の発明によれは,一方の電磁波シールド部材の何れの導電体層も他方の電磁波シールド部材の何れかの導電体層に電気的に接続されているので,本シールド部材を用いて,電磁波シールド特性を活かした接合構造とすることができ,高い電磁波シールド性能を確保でき,高い電磁波シールド性能を要求されるシールドルームの構築に対応できる。
さらに,両方のシールド部材の端部を単に折り曲げておいたものを重ねて固定すればよいので作業効率を高めることができる。
According to the invention of claim 1 of the present invention, since any conductor layer of one electromagnetic wave shield member is electrically connected to any conductor layer of the other electromagnetic wave shield member, It can be used to make a joint structure that makes use of the electromagnetic shielding characteristics, ensuring high electromagnetic shielding performance and corresponding to the construction of a shield room that requires high electromagnetic shielding performance.
Furthermore, it is only necessary to overlap and fix the ends of both shield members which are simply bent, so that the working efficiency can be improved.

また,接合が簡単に行え,表裏各導電体層が絶縁した状態に近い接合構造なので,二重シールド効果と類似の状態となるので,高い電磁波シールド効果が期待できる。
In addition , since the joining structure can be easily performed and the conductive layers near the front and back are insulated, it is similar to the double shield effect, so a high electromagnetic shielding effect can be expected.

以下に図面を用いて本発明の実施の形態を説明する。
図1に,本実施形態にかかる電磁波シールド部材の接合構造の一例を示す。この図1は電磁波シールド部材の接合構造を示すもので,1は電磁波シールド部材,この電磁波シールド部材1は,ガラスクロス(絶縁体層)20の両面にアルミニウム箔(導電体層)10を接着したシート状の構造を備えている。ガラスクロス10の厚さは100〜150μm,アルミニウム箔の厚さは7〜30μm程度であり,柔軟性を備えている。
Embodiments of the present invention will be described below with reference to the drawings.
In FIG. 1, an example of the joining structure of the electromagnetic wave shielding member concerning this embodiment is shown. FIG. 1 shows a joining structure of an electromagnetic wave shielding member. Reference numeral 1 denotes an electromagnetic wave shielding member, and the electromagnetic wave shielding member 1 has an aluminum foil (electrical conductor layer) 10 bonded to both surfaces of a glass cloth (insulator layer) 20. It has a sheet-like structure. The glass cloth 10 has a thickness of 100 to 150 μm, and the aluminum foil has a thickness of about 7 to 30 μm and has flexibility.

各電磁波シールド部材1は,各々端部を所定長さ50mm程度折り返し,折り返した側が互いに対向した状態で接合する。この際,両方の電磁波シールド部材の端面30は互いに離隔させた状態で接合する。このように接合することにより,導電層10が電気的に直接接合され,電磁波シールド部材が持つ電磁波シールド性能と同等の性能(100dB程度)が得られる。本実施の形態においては50は釘,タッカー等の係止部材で,これにより電磁波シールド部材を接合しているが,導電性の粘着テープや導電性接着剤で接合を行っても良い。   Each electromagnetic wave shielding member 1 is joined with its end portions folded back by a predetermined length of about 50 mm and the folded sides facing each other. At this time, the end faces 30 of both electromagnetic wave shielding members are joined with being separated from each other. By joining in this way, the conductive layer 10 is directly electrically joined, and the performance (about 100 dB) equivalent to the electromagnetic shielding performance of the electromagnetic shielding member is obtained. In this embodiment, reference numeral 50 denotes a locking member such as a nail or a tucker, which joins the electromagnetic wave shielding member, but may be joined using a conductive adhesive tape or a conductive adhesive.

図2に,本実施形態にかかる電磁波シールド部材の接合構造の他の一例を示す。電磁波シールド部材1は,図1と同様ものである。先の実施例と同様に各電磁波シールド部材は,各々端部を所定長さ折り返し,折り返した側が互いに対向した状態で接合する。この際,両方の電磁波シールド部材の端面30は互いの折り曲げ部40に入れ込んだ状態で接合する。このように接合することにより,導電層10が電気的に直接接合され。先の実施例と同等のシールド性能(100dB程度)が得られる。先の実施例と同様に釘,タッカー等の係止部材を導電性の粘着テープや導電性接着剤で接合を行っても良い。   FIG. 2 shows another example of the joining structure of the electromagnetic wave shielding member according to this embodiment. The electromagnetic wave shielding member 1 is the same as that shown in FIG. As in the previous embodiment, the electromagnetic wave shielding members are joined with their end portions folded back by a predetermined length and the folded sides facing each other. At this time, the end faces 30 of both electromagnetic wave shielding members are joined in a state of being inserted into the bent portions 40 of each other. By joining in this way, the conductive layer 10 is directly electrically joined. Shield performance (about 100 dB) equivalent to the previous embodiment can be obtained. Similarly to the previous embodiment, a locking member such as a nail or a tucker may be joined with a conductive adhesive tape or a conductive adhesive.

〔その他の実施例1〕
また,図3のような,シールド部材の繋ぎ目の上面と下面に電磁シールドテープや金属板等の結合部材を介し釘またはタッカー50等により止める構造とすることが出来る。
[Other Example 1]
Further, as shown in FIG. 3, it is possible to adopt a structure in which the upper and lower surfaces of the joint of the shield member are stopped by a nail or a tucker 50 or the like via a coupling member such as an electromagnetic shield tape or a metal plate.

〔その他の実施例2〕
また,図4のように,双方のシールド部材を約90度同一方向に折り曲げ,板バネクリップ70で止めて接合する構造とすることが出来る。このような構造では,壁ボードの隙間に埋め込んで使用することが出来る。
[Other Example 2]
Further, as shown in FIG. 4, both shield members can be bent by about 90 degrees in the same direction and fixed by the leaf spring clip 70 to be joined. In such a structure, it can be used by being embedded in the gap of the wall board.

本発明の一実施形態を示す断面図である。It is sectional drawing which shows one Embodiment of this invention. 本発明の一実施形態を示す断面図である。It is sectional drawing which shows one Embodiment of this invention. 本発明の一実施形態を示す断面図である。It is sectional drawing which shows one Embodiment of this invention. 本発明の一実施形態を示す断面図である。It is sectional drawing which shows one Embodiment of this invention. 従来例を示す断面図である。It is sectional drawing which shows a prior art example.

符号の説明Explanation of symbols

1 電磁波シールド部材
2 電磁波シールドテープ
10 導電体層,アルミニウム箔
20 絶縁体層,ガラスクロス
30 端面
40 折り曲げ部
50 止め具(釘またはタッカー)
DESCRIPTION OF SYMBOLS 1 Electromagnetic wave shielding member 2 Electromagnetic wave shielding tape 10 Conductor layer, aluminum foil 20 Insulator layer, glass cloth 30 End face 40 Bending part 50 Stopper (nail or tucker)

Claims (1)

絶縁体層の表裏両面に導電体層を接着して構成した電磁波シールド部材同士を接合する
接合構造において、それぞれの電磁波シールド部材の端部を折り返し,折り返した側が互いに対向した状態で接合し,それぞれの電磁波シールド部材の端面は離隔させ,
一方の電磁波シールド部材の表面の導電体層他方の電磁波シールド部材の
表面の導電体層に,一方の電磁波シールド部材の裏面の導電体層が他方の電磁波シールド部材の裏面の導電体層に電気的に接続されていることを特徴とする電磁波シールド部材の接合構造。
In the junction structure for joining an electromagnetic wave shielding member between constructed by bonding a conductor layer on both surfaces of the insulating layer, the folded end portion of each of the electromagnetic wave shielding member, joined in a state folded side are opposed to each other, respectively The end face of the electromagnetic shielding member is separated,
The surface of one of the electromagnetic wave shielding member conductor layer of the other of the electromagnetic wave shielding member
The conductive layer on the surface, the bonding structure of the back surface of the conductor layer electromagnetic wave shielding member, characterized in that it is electrically connected to the conductive layer of the back surface of the other of the electromagnetic wave shielding member of one of the electromagnetic wave shielding member.
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JP6037874B2 (en) * 2013-02-07 2016-12-07 東京計器株式会社 Electromagnetic shield panel connection structure and connection method
DE102019110650A1 (en) * 2019-01-28 2020-07-30 Parador Gmbh Covering element

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59115697U (en) * 1983-01-24 1984-08-04 理研イ−エムシ−株式会社 Electromagnetic wave shielding material
JPH01167098U (en) * 1988-05-13 1989-11-22
JPH01302799A (en) * 1988-05-30 1989-12-06 Osaka Prefecture Superconducting magnetic shielding body
JPH04175080A (en) * 1990-11-08 1992-06-23 Toshiba Corp Crt magnetic proof cover
JPH07298010A (en) * 1994-04-20 1995-11-10 Fuji Xerox Co Ltd Image reader
JPH10173385A (en) * 1996-12-09 1998-06-26 Kitagawa Ind Co Ltd Member and method for electromagnetically shielding electric wires, or the like
JP2002134989A (en) * 2000-10-24 2002-05-10 Sanei Kogyo Kk Electromagnetic wave shielding sheet

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59115697U (en) * 1983-01-24 1984-08-04 理研イ−エムシ−株式会社 Electromagnetic wave shielding material
JPH01167098U (en) * 1988-05-13 1989-11-22
JPH01302799A (en) * 1988-05-30 1989-12-06 Osaka Prefecture Superconducting magnetic shielding body
JPH04175080A (en) * 1990-11-08 1992-06-23 Toshiba Corp Crt magnetic proof cover
JPH07298010A (en) * 1994-04-20 1995-11-10 Fuji Xerox Co Ltd Image reader
JPH10173385A (en) * 1996-12-09 1998-06-26 Kitagawa Ind Co Ltd Member and method for electromagnetically shielding electric wires, or the like
JP2002134989A (en) * 2000-10-24 2002-05-10 Sanei Kogyo Kk Electromagnetic wave shielding sheet

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