JP2006336289A - Joint structure of electromagnetic wave shielding member - Google Patents

Joint structure of electromagnetic wave shielding member Download PDF

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JP2006336289A
JP2006336289A JP2005161658A JP2005161658A JP2006336289A JP 2006336289 A JP2006336289 A JP 2006336289A JP 2005161658 A JP2005161658 A JP 2005161658A JP 2005161658 A JP2005161658 A JP 2005161658A JP 2006336289 A JP2006336289 A JP 2006336289A
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electromagnetic wave
wave shielding
electromagnetic
shielding member
shielding members
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JP4585918B2 (en
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Juichiro Kibe
寿一郎 岐部
Kanji Hirashiro
完治 平城
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TOKIMEC AVIATION KK
Tokimec Inc
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Tokimec Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint structure between adjacent sheets of electromagnetic wave shielding members having excellent electromagnetic shielding characteristics. <P>SOLUTION: The joint structure joins the electromagnetic wave shielding members 1 constituted by bonding electric conductor layers (aluminum foil) 10 to both front and rear faces of insulator layers (glass cloth) 20, wherein the ends of the respective electromagnetic wave shielding members 1 are folded to join the electromagnetic wave shielding members 1 in the mutually facing state of the folded sides, and any electric conductor layer 10 of one electromagnetic wave shielding member 1 is electrically connected to any electric conductor layer 10 of the other electromagnetic wave shielding member 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

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 apparatus and the like are installed in an electromagnetic wave shield room in order to eliminate leakage of electromagnetic waves from the MRI inspection apparatus 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 plates, thick objects are heavy and difficult to handle, and thin ones are easy to break. In addition, the sharp cut surface of the copper plate damages the human body, and solder used to join the copper plate There is a situation where lead contained is avoided due to environmental problems, and an alternative to these uses and a processing method have been demanded.

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 arranging 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 bonding structure, there is a structure in which the end portions of the electromagnetic wave shielding member 1 as shown in FIG. 5 are overlapped and 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 uses an electromagnetic shielding member that is easy to handle, and has a structure that obtains high electromagnetic shielding performance at the joint between the electromagnetic shielding members, 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，本発明の内請求項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，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ことを特徴とする。   In order to solve the above-mentioned problems, the invention according to claim 1 of the present invention is a bonding structure in which an electromagnetic wave shielding member formed by adhering a conductive layer to both front and back surfaces of an insulating layer is bonded. The end portions of the electromagnetic wave shielding member are folded and joined with the folded sides facing each other, and any conductor layer of one electromagnetic wave shielding member is electrically connected to any one of the other electromagnetic wave shielding members. It is characterized by.

請求項２に記載の発明は，請求項１記載の接合構造において，それぞれの電磁波シールド部材の端面は離隔させて接合したことを特徴とする。   The invention according to claim 2 is characterized in that, in the joining structure according to claim 1, the end surfaces of the respective electromagnetic wave shielding members are joined apart from each other.

請求項３に記載の発明は，請求項１記載の接合構造において，それぞれの電磁波シールド部材の端面を他の部材の折り曲げ部に入れ込んだ状態で接合したことを特徴とする。   According to a third aspect of the present invention, in the joining structure according to the first aspect, the end surfaces of the respective electromagnetic wave shielding members are joined in a state of being inserted into the bent portions of other members.

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.

請求項２の発明では，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 the invention of claim 2, since the joining structure can be easily performed and the front and back conductor layers are close to the insulated state, it becomes a state similar to the double shielding effect, so that a high electromagnetic shielding effect can be expected.

請求項３の発明では，両方のシールド部材同士の密着度合いが高いので，電気的接合が確実で，高い電磁波シールド効果が期待できる。   In the invention of claim 3, since the degree of adhesion between both shield members is high, electrical connection is reliable and 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, where 1 is an electromagnetic wave shielding member, and this 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 in a state of 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 shielding member, but may be joined with 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 (3)

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，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ことを特徴とする電磁波シールド部材の接合構造。   In the joining structure for joining the electromagnetic shielding members formed by adhering the conductor layers to the front and back surfaces of the insulating layer, the end portions of the respective electromagnetic shielding members are folded and joined with the folded sides facing each other, Any one of the conductor layers of the electromagnetic wave shielding member is electrically connected to any one of the other electromagnetic wave shielding members. 請求項１記載の接合構造において，それぞれの電磁波シールド部材の端面は離隔させて接合したことを特徴とする電磁波シールド部材の接合構造。   2. The joining structure according to claim 1, wherein the end surfaces of the respective electromagnetic shielding members are joined apart from each other. 請求項１記載の接合構造において，それぞれの電磁波シールド部材の端面を他の部材の折り曲げ部に入れ込んだ状態で接合したことを特徴とする電磁波シールド部材の接合構造。   2. The joining structure according to claim 1, wherein the end faces of the respective electromagnetic wave shielding members are joined in a state of being inserted into a bent portion of another member.
JP2005161658A 2005-06-01 2005-06-01 Electromagnetic shielding member joining structure Active JP4585918B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014154678A (en) * 2013-02-07 2014-08-25 Tokyo Keiki Inc Connection structure of electromagnetic wave shield panel and connection method
CN112805442A (en) * 2019-01-28 2021-05-14 帕拉多尔股份有限公司 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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014154678A (en) * 2013-02-07 2014-08-25 Tokyo Keiki Inc Connection structure of electromagnetic wave shield panel and connection method
CN112805442A (en) * 2019-01-28 2021-05-14 帕拉多尔股份有限公司 Covering element

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