JP2020119926A - Connection structure of shield material - Google Patents

Connection structure of shield material Download PDF

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JP2020119926A
JP2020119926A JP2019007410A JP2019007410A JP2020119926A JP 2020119926 A JP2020119926 A JP 2020119926A JP 2019007410 A JP2019007410 A JP 2019007410A JP 2019007410 A JP2019007410 A JP 2019007410A JP 2020119926 A JP2020119926 A JP 2020119926A
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conductive
shield material
contact portion
surface fastener
connection structure
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JP7142354B2 (en
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則久 建部
Norihisa Takebe
則久 建部
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Japan Eletex Co Ltd
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Japan Eletex Co Ltd
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Abstract

To provide a connection structure of a shield material, excellent in electromagnetic wave shielding performance at a contact part between shield materials, and excellent in durability by repeating engagement and disengagement.SOLUTION: The connection structure includes a first shield material and a second shield material, having electromagnetic wave shielding properties. The first shield material has a conductive first contact portion and a first surface fastener. The second shield material has a conductive second contact portion and a second surface fastener. When the first surface fastener and the second surface fastener are joined, the conductive first contact portion and the conductive second contact portion are brought into contact with each other and have pressing means for generating mutual adhesive force therebetween.SELECTED DRAWING: Figure 1

Description

本発明は、電磁波遮蔽材同士を接続する際の接続部の接続構造に関する。 The present invention relates to a connection structure of a connection portion when connecting electromagnetic wave shielding materials.

外部からの電磁波の影響を受けないように電磁波遮蔽ボックス，電磁波シールドテント，研究室の出入口等にシールド材が使用されている。
これらのシールド環境を形成する場合に機器の出し入れや、研究者，測定者等の出入口が必要となる。
この場合に、開口部材や出入口を形成するためのシールド材と、シールドボックスやシールドテントの開口部の周囲を形成するシールド材との相互の接合が充分でないと、その部分から電磁波が漏れる恐れがある。 Shielding materials are used in electromagnetic shielding boxes, electromagnetic shielding tents, and entrances/exits of laboratories so that they are not affected by external electromagnetic waves.
When forming these shielded environments, it is necessary to put in and take out equipment and to enter and exit researchers and measurers.
In this case, if the shield material for forming the opening member or the entrance and the shield material forming the periphery of the opening of the shield box or the shield tent are not sufficiently joined to each other, electromagnetic waves may leak from that portion. is there.

特許文献１，２には、開閉部と開口部の周縁部との間に導電性の面ファスナーを設ける構造が開示されている。
これらの導電性面ファスナーは、ループやフックの芯材に金属をメッキしたものとなっている。
しかし、このようなメッキ等で被覆したループやフックは相互の接触圧が弱く、電気的接続性が不充分であったり、被覆部が剥がれやすく係脱を繰り返すことで、シールド性が低下してしまう課題があった。 Patent Documents 1 and 2 disclose a structure in which a conductive surface fastener is provided between the opening/closing portion and the peripheral portion of the opening.
In these conductive surface fasteners, a core material of a loop or hook is plated with metal.
However, loops and hooks coated with such plating have a weak contact pressure with each other, have insufficient electrical connectivity, and the coating part is easily peeled off, and repeated engagement and disengagement reduces the shielding property. There was a problem that ended up.

特開平８−５２０１０号公報JP-A-8-52010 特開平２−１８５２０４号公報JP-A-2-185204

本発明は、シールド材同士の接触部の電磁波遮蔽性能に優れ、係脱の繰り返しによる耐久性に優れたシールド材の接続構造の提供を目的とする。 An object of the present invention is to provide a connection structure of a shield material, which has excellent electromagnetic wave shielding performance at a contact portion between shield materials and has excellent durability due to repeated engagement and disengagement.

本発明に係るシールド材の接続構造は、電磁波遮蔽性を有する第１シールド材と第２シールド材との接続構造であって、第１シールド材は導電性第１接触部と第１面ファスナーとを有し、第２シールド材は導電性第２接触部と第２面ファスナーとを有し、前記第１面ファスナーと第２面ファスナーとを接合すると前記導電性第１接触部と導電性第２接触部とが接触するとともに、その間に相互の密着力が生じる押圧手段を有することを特徴とする。 A connection structure of a shield material according to the present invention is a connection structure of a first shield material and a second shield material having an electromagnetic wave shielding property, and the first shield material includes a conductive first contact portion and a first surface fastener. And the second shield material has a conductive second contact portion and a second surface fastener, and when the first surface fastener and the second surface fastener are joined, the conductive first contact portion and the conductive first contact portion It is characterized in that it has a pressing means which comes into contact with the two contact portions and produces mutual adhesive force therebetween.

ここでシールド材とは、電磁波をシールドする目的で使用される布地のような生地をいう。
シールド材として使用される生地には、化学繊維と極細の金属糸とを布地のように織り上げたもの、化学繊維に極薄い金属箔を巻いたもの、繊維に金属メッキを施したもの等、市販されている生地を用いることができる。
また、本発明に用いられる面ファスナーは、一方に起毛した複数のフックと他方に起毛した複数のループを相互に係脱可能にしたものをいい、衣類や各種日用品の留め具として使用されている。
従って、本発明において第１面ファスナーと第２面ファスナーは、一方にフックを形成し、他方にループを形成した一対の面ファスナーをいう。 Here, the shield material refers to a cloth-like material used for the purpose of shielding electromagnetic waves.
The cloth used as a shield material is commercially available, such as chemical fiber and ultra-fine metal thread woven like cloth, chemical fiber wrapped with ultra-thin metal foil, metal-plated fiber, etc. The dough which has been used can be used.
Further, the hook-and-loop fastener used in the present invention refers to one in which a plurality of hooks raised on one side and a plurality of loops raised on the other can be engaged with and disengaged from each other, and is used as a fastener for clothes and various daily necessities. ..
Therefore, in the present invention, the first surface fastener and the second surface fastener are a pair of surface fasteners each having a hook formed on one side and a loop formed on the other side.

特許文献１，２等に記載の導電性面ファスナーは、係止及び解放の係脱を繰り返すことでメッキが剥がれ、シールド接続の信頼性が低下するのに対して、本発明は第１シールド材と第２シールド材とに相互に接触させる導電性第１，第２接触部を設けるとともに、その接触力を維持又は向上させるのにこの導電性接触部の他に、相互に係脱可能な面ファスナーを設けたものである。
即ち、一方のシールド材に設けた第１面ファスナーと他方のシールド材に設けた第２面ファスナーとを相互に係止させると、導電性第１接触部と導電性第２接触部との間に密着力が向上するための相互の押圧力が作用する。
本発明において、第１面ファスナーと第２面ファスナーとは相互に配置した複数のループと複数のフックとからなり、前記導電性第１接触部と導電性第２接触部とは前記複数のループの間あるいは前記複数のフックの間から立設してあってもよい。
このようにすると、面ファスナーに導電性の接触部を一体的に形成することができる。 In the conductive surface fastener described in Patent Documents 1 and 2, the plating is peeled off by repeating engagement and disengagement of locking and releasing, and the reliability of the shield connection is lowered, whereas the present invention is the first shield material. And a second shield member are provided with electrically conductive first and second contact portions, and in order to maintain or improve the contact force, in addition to the electrically conductive contact portions, mutually detachable surfaces It has a fastener.
That is, when the first surface fastener provided on one shield material and the second surface fastener provided on the other shield material are locked to each other, the conductive first contact portion and the conductive second contact portion are separated from each other. The mutual pressing force acts to improve the adhesion.
In the present invention, the first surface fastener and the second surface fastener are composed of a plurality of loops and a plurality of hooks arranged mutually, and the conductive first contact portion and the conductive second contact portion are the plurality of loops. It may be erected from between or between the plurality of hooks.
With this configuration, the conductive contact portion can be integrally formed with the surface fastener.

導電性第１接触部と導電性第２接触部との密着力は、この接触部の近傍に一対の面ファスナーを設けるだけでも向上し、相互の押圧力が働くことになるが、さらに本発明において押圧手段は前記導電性第１接触部と導電性第２接触部との両側にそれぞれ面ファスナーからなる接合部を有することで前記導電性第１接触部と導電性第２接触部とが相互に密着する方向に第１シールド材と第２シールド材に引張り力が作用するものであってもよく、また押圧手段は前記導電性第１接触部と前記導電性第２接触部とのうち、一方又は両方の背面側に弾性部材を有し、前記相互の面ファスナーを接合すると前記弾性部材の弾性圧により導電性第１接触部と導電性第２接触部とが相互に密着する方向の密着力が作用するものであってもよい。 The adhesive force between the conductive first contact portion and the conductive second contact portion is improved even by providing a pair of surface fasteners in the vicinity of the contact portion, and mutual pressing force works. In the pressing means, the conductive first contact portion and the conductive second contact portion have mutual connection portions on both sides of the conductive first contact portion and the conductive second contact portion. A pulling force may be applied to the first shield material and the second shield material in a direction in which the first shield material and the second shield material are in close contact with each other. Adhesion in a direction in which the conductive first contact portion and the conductive second contact portion are in close contact with each other due to the elastic pressure of the elastic members when one or both back surfaces have elastic members and the mutual surface fasteners are joined together. It may be a force acting.

本発明に係るシールド材の接続構造においては、導電性の接触部同士の他に一対のループとフックを起毛させた面ファスナーを設けたので、面ファスナーにて係脱繰り返し信頼性を確保することで、導電性の接触部によるシールド材相互の接続信頼性も向上する。 In the connection structure of the shield material according to the present invention, since a surface fastener having a pair of loops and hooks raised in addition to the conductive contact portions is provided, the surface fastener ensures engagement/disengagement reliability. Therefore, the connection reliability between the shield materials by the conductive contact portion is also improved.

本発明に係る接続構造の例を示し、（ａ）は接続前、（ｂ）は接続後を示す。The example of the connection structure which concerns on this invention is shown, (a) shows before connection, (b) shows after connection. 第２の実施例を示す。（ａ）は接続前、（ｂ）は接続後を示す。A second embodiment will be described. (A) shows before connection and (b) shows after connection. 第３の実施例を示す。A third embodiment will be described. 本発明に係る接続構造をシールドボックスに適用した例を示す。（ａ）は図５に示した外フラップを広げた状態、（ｂ）は外フラップを内フラップの外側に係止する状態、（ｃ）は線ファスナー１６，２６を外して開閉部材（第２シールド材）を上に持ち上げた状態を示す。The example which applied the connection structure which concerns on this invention to a shield box is shown. 5A is a state in which the outer flap shown in FIG. 5 is widened, FIG. 5B is a state in which the outer flap is locked to the outside of the inner flap, and FIG. The state in which the shield material) is lifted up is shown. 図４のＣ−Ｃ線断面図を示す。The CC sectional view taken on the line of FIG. 4 is shown. 面ファスナーに導電性の接触部を一体的に形成した例を（ａ）〜（ｃ）に示す。An example in which a conductive contact portion is integrally formed with a surface fastener is shown in (a) to (c).

本発明に係るシールド材の接続構造例を以下図に基づいて説明する。
図１は、第１の実施例として第１シールド材１０と第２シールド材２０との接続部の構造例を示す。
第１シールド材１０に設けた導電性第１接触部（導電性生地）１３と、第２シールド材２０に設けた導電性第２接触部（導電性生地）２３とが密着接続して、電気的に接続される。
この部分の密着性を確保するために、この第１の実施例では導電性第２接触部２３の背面側にクッション材等の弾性材２４を配置するとともに、その両側に第１面ファスナー（Ａ）１１と、第２面ファスナー（Ａ）２１とのファスナー（Ａ）部と、第１面ファスナー（Ｂ）１２と第２面ファスナー（Ｂ）２２のファスナー（Ｂ）部とを設けたものである。
図１（ｂ）は、第１シールド材１０と第２シールド材２０とのファスナー（Ａ）部と、ファスナー（Ｂ）部とを係着した状態を示す。
これにより、導電性第２接触部２３が弾性材２４の反発力にて、導電性第１接触部１３側に押し付けられるので密着力が向上し、電気接続の信頼性が向上する。 An example of the connection structure of the shield material according to the present invention will be described below with reference to the drawings.
FIG. 1 shows a structural example of a connecting portion between the first shield material 10 and the second shield material 20 as a first embodiment.
The conductive first contact portion (conductive cloth) 13 provided on the first shield material 10 and the conductive second contact portion (conductive cloth) 23 provided on the second shield material 20 are tightly connected to each other to generate electricity. Connected to each other.
In order to secure the adhesion of this portion, in this first embodiment, an elastic material 24 such as a cushion material is arranged on the back side of the conductive second contact portion 23, and the first surface fastener (A ) 11, a fastener (A) portion with the second surface fastener (A) 21, and a fastener (B) portion with the first surface fastener (B) 12 and the second surface fastener (B) 22. is there.
FIG. 1B shows a state in which the fastener (A) portion and the fastener (B) portion of the first shield material 10 and the second shield material 20 are attached to each other.
As a result, the conductive second contact portion 23 is pressed against the conductive first contact portion 13 side by the repulsive force of the elastic material 24, so that the adhesion is improved and the reliability of the electrical connection is improved.

図２は、第１の実施例に用いたクッション材の替わりに、導電性繊維で起毛したループ１３ａ，２３ａ同士の弾性力にて密着する例である。
ここで用いたループは、化学繊維の周囲に極薄い金属テープを巻き付けたものや、極細の金属糸と化学繊維とを織り込んだものを用いるとよい。
このようなループは、メッキと異なり剥がれ難い。 FIG. 2 shows an example in which, instead of the cushioning material used in the first embodiment, the elastic forces of the loops 13a and 23a raised with conductive fibers make close contact with each other.
As the loop used here, it is preferable to use an ultrathin metal tape wound around the chemical fiber or an interwoven fine metal thread and the chemical fiber.
Unlike plating, such a loop is hard to peel off.

図３は、第３の実施例として線ファスナー（１６，２６）と、面ファスナーとを組み合せた例である。
本実施例は、第１シールド材１０と第２シールド材２０を相互の線ファスナー（１６，２６）にて開閉可能にするとともに、一方の例えば本実施例では第２シールド材２０側にフラップ２５を設けた例である。
フラップ２５の内側であって、導電性第２接触部２３の背面側に弾性材２４を配置し、その両側を面ファスナーからなるファスナー（Ａ）部と、ファスナー（Ｂ）部にて係脱できるようにした例である。 FIG. 3 shows an example in which a line fastener (16, 26) and a surface fastener are combined as a third embodiment.
In the present embodiment, the first shield material 10 and the second shield material 20 can be opened and closed by mutual line fasteners (16, 26), and one of them, for example, in the present embodiment, the flap 25 is provided on the second shield material 20 side. Is an example in which is provided.
Inside the flap 25, the elastic material 24 is arranged on the back side of the conductive second contact portion 23, and both sides thereof can be engaged and disengaged by a fastener (A) portion and a fastener (B) portion which are surface fasteners. This is an example.

図４には、本発明に係る接続構造をシールドボックス１に適用した例を示し、Ｃ−Ｃ線断面図を図５に示す。
図５及び図４（ｃ）に示すように、第２シールド材２０を上下方向に折り曲げ開閉できるように、第２シールド材２０の外周部に設けた線ファスナー２６と、ボックスを形成した第１シールド材１０の開口部に取り付けた線ファスナー１６とがファスナー連結されている。
第２シールド材２０の外周部から第１シールド材１０の開口部の周縁部に重なるように内フラップ２５ａを設けるとともに、第１シールド材１０の開口部に沿って外フラップ１５を形成してある。
内フラップ２５ａの先端部内側に弾性材２４を配置するとともに、この弾性材２４よりも開口部側であって、内フラップ２５ａの外側に第２面ファスナー２１ａを取り付け、外フラップ１５の先端部内側に第１面ファスナー１１ａを取り付けてある。
これにより、シールドボックス１の枠材１ａに向けて、導電性第１接触部１３を押し付けるようにして、弾性材２４の反発力を用いて導電性第２接触部２３をこの導電性第１接触部１３に密着させることができる。
この場合には、外フラップ１５を引っ張るようにして、第１面ファスナー１１ａを第２面ファスナー２１ａに係止させるのがよい。
線ファスナー（１６，２６）の接続部は、導電性の内フラップ２５ａにて覆われているので、この部分のシールド性も高い。 FIG. 4 shows an example in which the connection structure according to the present invention is applied to the shield box 1, and a sectional view taken along the line CC is shown in FIG.
As shown in FIG. 5 and FIG. 4C, a linear fastener 26 provided on the outer peripheral portion of the second shield material 20 and a box formed so that the second shield material 20 can be bent and opened and closed in the vertical direction. The wire fastener 16 attached to the opening of the shield material 10 is fastener-connected.
The inner flap 25a is provided so as to overlap the outer peripheral portion of the second shield material 20 with the peripheral portion of the opening portion of the first shield material 10, and the outer flap 15 is formed along the opening portion of the first shield material 10. ..
The elastic member 24 is arranged inside the front end of the inner flap 25a, and the second surface fastener 21a is attached to the outer side of the inner flap 25a on the opening side of the elastic member 24. The first surface fastener 11a is attached to.
Thus, the conductive first contact portion 13 is pressed toward the frame member 1a of the shield box 1, and the repulsive force of the elastic material 24 is used to move the conductive second contact portion 23 to the conductive first contact portion. It can be brought into close contact with the portion 13.
In this case, it is preferable that the first surface fastener 11a be locked to the second surface fastener 21a by pulling the outer flap 15.
Since the connecting portion of the line fasteners (16, 26) is covered with the conductive inner flap 25a, the shielding property of this portion is also high.

図６は、導電性の接触部と面ファスナーの機能を一体化した例を示す。
第１シールド材１０と第２シールド材２０とに対向して設けた面ファスナーは、図６（ａ）に示すように一方にパイルからなるループ２１ｂを形成し、他方にパイルからなるフック１１ｂを形成することで、それらが相互に係脱する。
図６（ａ）は、これらのフック１１ｂやループ２１ｂの間に、導電性繊維からなる導電性第１接触部１３ａ，導電性第２接触部２３ａを対向して設けた例である。
導電性繊維は、極細金属線，ポリエチレン等のコシのある化学繊維に極細の金属糸や極薄の金属箔を巻き付けたもの、カーボン繊維等であってもよい。
図６（ｂ），（ｃ）は、（ａ）の変形例を示す。
（ｂ）は、それぞれの面ファスナーに（ループ１１ｃ，フック１１ｂ）と、（ループ２１ｂ，フック２１ｃ）を組み合せて用いた例であり、（ｃ）は金属製のキノコ状のオス部１３ｂとループ２１ｂ，ループ２３ａを係脱させる例である。
このように、従来の面ファスナーを構成するフックやループの間に、導電性の接触部を形成させることでも電気的接続の信頼性が向上する。 FIG. 6 shows an example in which the functions of the conductive contact portion and the surface fastener are integrated.
As shown in FIG. 6A, the surface fastener provided so as to face the first shield material 10 and the second shield material 20 has a loop 21b made of pile on one side and a hook 11b made of pile on the other side. By forming, they disengage from each other.
FIG. 6A shows an example in which a conductive first contact portion 13a and a conductive second contact portion 23a made of conductive fibers are provided to face each other between these hooks 11b and loops 21b.
The conductive fibers may be ultrafine metal wires, elastic chemical fibers such as polyethylene wound with ultrafine metal threads or ultrathin metal foil, and carbon fibers.
6B and 6C show a modified example of FIG.
(B) is an example in which (loop 11c, hook 11b) and (loop 21b, hook 21c) are used in combination for the respective surface fasteners, and (c) is a metal mushroom-shaped male part 13b and loop. 21b and the loop 23a are disengaged.
As described above, the reliability of the electrical connection is also improved by forming the conductive contact portion between the hooks and the loops forming the conventional surface fastener.

１０ 第１シールド材
１１ 第１面ファスナー（Ａ）
１１ｂ フック
１１ｃ ループ
１２ 第１面ファスナー（Ｂ）
１３ 導電性第１接触部
１３ｂ オス部
１５ 外フラップ
２０ 第２シールド材
２１ 第２面ファスナー（Ａ）
２１ｂ ループ
２１ｃ フック
２２ 第２面ファスナー（Ｂ）
２３ 導電性第２接触部
２４ 弾性材
２５ フラップ
２５ａ 内フラップ 10 1st shield material 11 1st surface fastener (A)
11b Hook 11c Loop 12 First surface fastener (B)
13 Conductive 1st contact part 13b Male part 15 Outer flap 20 2nd shield material 21 2nd surface fastener (A)
21b Loop 21c Hook 22 Second surface fastener (B)
23 Conductive Second Contact Part 24 Elastic Material 25 Flap 25a Inner Flap

Claims (4)

電磁波遮蔽性を有する第１シールド材と第２シールド材との接続構造であって、
第１シールド材は導電性第１接触部と第１面ファスナーとを有し、
第２シールド材は導電性第２接触部と第２面ファスナーとを有し、
前記第１面ファスナーと第２面ファスナーとを接合すると前記導電性第１接触部と導電性第２接触部とが接触するとともに、その間に相互の密着力が生じる押圧手段を有することを特徴とするシールド材の接続構造。 A connection structure of a first shield material and a second shield material having electromagnetic wave shielding properties,
The first shield material has a conductive first contact portion and a first surface fastener,
The second shield material has a conductive second contact portion and a second surface fastener,
When the first surface fastener and the second surface fastener are joined to each other, the conductive first contact portion and the conductive second contact portion are in contact with each other, and there is a pressing means for generating mutual adhesive force therebetween. Connection structure of shield material to be used. 前記第１面ファスナーと第２面ファスナーとは相互に配置した複数のループと複数のフックとからなり、前記導電性第１接触部と導電性第２接触部とは前記複数のループの間あるいは前記複数のフックの間から立設してあることを特徴とする請求項１記載のシールド材の接続構造。 The first surface fastener and the second surface fastener are composed of a plurality of loops and a plurality of hooks arranged mutually, and the conductive first contact portion and the conductive second contact portion are arranged between the plurality of loops or The shield material connection structure according to claim 1, wherein the shield material is erected from between the plurality of hooks. 前記押圧手段は前記導電性第１接触部と導電性第２接触部との両側にそれぞれ面ファスナーからなる接合部を有することで前記導電性第１接触部と導電性第２接触部とが相互に密着する方向に第１シールド材と第２シールド材に引張り力が作用するものであることを特徴とする請求項１記載のシールド材の接続構造。 Since the pressing means has joint portions formed of surface fasteners on both sides of the conductive first contact portion and the conductive second contact portion, the conductive first contact portion and the conductive second contact portion are mutually connected. The connection structure of the shield material according to claim 1, wherein a tensile force acts on the first shield material and the second shield material in a direction in which the shield material and the second shield material are in close contact with each other. 前記押圧手段は前記導電性第１接触部と前記導電性第２接触部とのうち、一方又は両方の背面側に弾性部材を有し、前記相互の面ファスナーを接合すると前記弾性部材の弾性圧により導電性第１接触部と導電性第２接触部とが相互に密着する方向の密着力が作用するものであることを特徴とする請求項１又は３記載のシールド材の接続構造。 The pressing means has an elastic member on the back side of one or both of the conductive first contact portion and the conductive second contact portion, and when the mutual surface fasteners are joined, the elastic pressure of the elastic member is increased. 4. The connection structure of the shield material according to claim 1, wherein the conductive first contact portion and the conductive second contact portion exert an adhesive force in a direction in which they are in close contact with each other.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494755A (en) * 1994-06-08 1996-02-27 Lockheed Missiles & Space Co., Inc. Passive intermodulation products (PIM) free tape
JP2004111627A (en) * 2002-09-18 2004-04-08 Kitagawa Ind Co Ltd Shield case, shield structure, and method for manufacturing shield case
JP2009224446A (en) * 2008-03-14 2009-10-01 Japan Radio Co Ltd Shield case
JP2017031534A (en) * 2015-08-03 2017-02-09 グンゼ株式会社 Stretchable clothing including conductive part

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494755A (en) * 1994-06-08 1996-02-27 Lockheed Missiles & Space Co., Inc. Passive intermodulation products (PIM) free tape
JP2004111627A (en) * 2002-09-18 2004-04-08 Kitagawa Ind Co Ltd Shield case, shield structure, and method for manufacturing shield case
JP2009224446A (en) * 2008-03-14 2009-10-01 Japan Radio Co Ltd Shield case
JP2017031534A (en) * 2015-08-03 2017-02-09 グンゼ株式会社 Stretchable clothing including conductive part

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