JPH02198199A - Radio wave shielding material - Google Patents
Radio wave shielding materialInfo
- Publication number
- JPH02198199A JPH02198199A JP1628389A JP1628389A JPH02198199A JP H02198199 A JPH02198199 A JP H02198199A JP 1628389 A JP1628389 A JP 1628389A JP 1628389 A JP1628389 A JP 1628389A JP H02198199 A JPH02198199 A JP H02198199A
- Authority
- JP
- Japan
- Prior art keywords
- frame member
- piece
- contact
- conductive sheet
- wave 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 32
- 239000004033 plastic Substances 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 abstract description 11
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 239000011162 core material Substances 0.000 description 7
- 239000004744 fabric Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
【発明の詳細な説明】
〔概要〕
電子機器の筐体に取付られる電波シールド材に関し、
永久変形や剥離による位置ずれを防止し、シールド効果
を高めることを目的とし、
取付片の一端に断面湾曲状の当接片を形成してなるプラ
スチック製枠部材と、前記枠部材を被覆する導電性シー
ト材とより構成する。[Detailed Description of the Invention] [Summary] Regarding the radio wave shielding material attached to the housing of electronic equipment, one end of the mounting piece has a curved cross section for the purpose of preventing permanent deformation and displacement due to peeling and increasing the shielding effect. It is composed of a plastic frame member formed with a shaped abutment piece, and a conductive sheet material covering the frame member.
本発明は、電子機器の筐体に取付けられる電波シールド
材に関するものである。The present invention relates to a radio wave shielding material attached to a housing of an electronic device.
電子機器の筐体とその側板や扉との間をシールドする場
合、導電性の布等をスポンジ等の軟質性芯材に貼着した
電波シールド材を使用して、筐体に接着し、芯材のクツ
ション性により側板あるいは扉に密着させて電磁波の漏
れを防ぐようにしている。しかし、スポンジ等の軟質材
は圧縮によって永久変形したり、筐体から剥離して、次
第に密着性が低下し、側板や扉との間に隙間を生じ電磁
波のシールド効果が低減する。When shielding between the casing of an electronic device and its side plate or door, use a radio wave shielding material made by adhering conductive cloth to a soft core material such as sponge, and glue it to the casing. Due to the cushioning properties of the material, it is placed in close contact with the side panel or door to prevent leakage of electromagnetic waves. However, soft materials such as sponges are permanently deformed or peeled off from the housing due to compression, and their adhesion gradually decreases, creating gaps between them and the side panels and doors, reducing the electromagnetic wave shielding effect.
このような状況のもとで、筐体の隙間に密着して長期に
わたりシールド効果の低下しない電波シールド材が求め
られている。Under these circumstances, there is a need for a radio wave shielding material that fits tightly into the gap between the housings and whose shielding effect does not deteriorate over a long period of time.
従来、電子機器の筐体に取付けられる電波シールド材と
しては、第４図に示すように、スポンジ等の軟質材より
なる芯材１０に導電性の布２０を貼着したものがある。2. Description of the Related Art Conventionally, as shown in FIG. 4, a radio wave shielding material attached to a housing of an electronic device includes one in which a conductive cloth 20 is attached to a core material 10 made of a soft material such as sponge.
このような電波シールド材は、導電性の布２０の表面に
両面粘着テープ４０等を介して筐体３の主体部３１に接
着され、側板あるいは扉３２によって圧縮され、密着し
て筐体３の隙間をシールドする。Such a radio wave shielding material is adhered to the main body part 31 of the casing 3 via double-sided adhesive tape 40 or the like on the surface of the conductive cloth 20, compressed by the side plate or door 32, and tightly adheres to the main part 31 of the casing 3. Shield the gap.
しかし、スポンジ等の軟質発泡材よりなる芯材１０は、
長時間圧縮力を受けると永久変形して弾性力が低下し、
側板３２に密着することができなくなり、隙間が生じて
電磁波のシールド効果が低下する。また、両面粘着テー
プ４０等によって接着されているため、側板３２によっ
て圧縮された時、圧縮に伴って芯材１０を幅方向に変形
させる力ｆ１、ｆ２が均等に作用せず、接着部分にずれ
や剥離が生じるという欠点を有するものであった。However, the core material 10 made of a soft foam material such as sponge,
When subjected to compressive force for a long time, it permanently deforms and its elasticity decreases.
It is no longer possible to make close contact with the side plate 32, and a gap is created, reducing the electromagnetic wave shielding effect. In addition, since it is bonded with double-sided adhesive tape 40 or the like, when it is compressed by the side plate 32, the forces f1 and f2 that deform the core material 10 in the width direction due to the compression do not act equally, and the bonded portion may shift. However, it has the disadvantage that peeling occurs.
本発明は、以上の欠点を解決すべくなされたものであっ
て、永久変形や剥離による位置ずれを防止し、長期間に
わたりシールド効果が低下することのない電波シールド
材を提供することを目的とする。The present invention was made in order to solve the above-mentioned drawbacks, and an object of the present invention is to provide a radio wave shielding material that prevents permanent deformation and displacement due to peeling, and whose shielding effect does not deteriorate over a long period of time. do.
本発明を実施例に対応する第１図ないし第３図に基づい
て説明すると、電波シールド材Ａは筐体３に固定される
取付片１１の一端に断面湾曲状の当接片１２を一体に形
成してなるプラスチック製枠部材１と、前記枠部材１を
被覆する導電性シート材２とより構成されている。To explain the present invention based on FIGS. 1 to 3 corresponding to embodiments, the radio wave shielding material A has a contact piece 12 having a curved cross section integrally attached to one end of a mounting piece 11 fixed to the housing 3. It is composed of a plastic frame member 1 and a conductive sheet material 2 covering the frame member 1.
上記構成に基づき、本発明においては、筺体３の主体部
３１に取付けられた電波シールド材Ａに側板や扉３２の
周縁が当接すると、当接片１２は弾性力のあるプラスチ
ックで形成され、かつ断面湾曲状であるため、容易に弾
性変形し、その弾性力によって扉３２に密着することが
できる。Based on the above configuration, in the present invention, when the peripheral edge of the side plate or door 32 comes into contact with the radio wave shielding material A attached to the main body part 31 of the housing 3, the contact piece 12 is formed of elastic plastic, In addition, since it has a curved cross section, it can be easily elastically deformed and can be tightly attached to the door 32 due to its elastic force.
したがって、従来のように、圧縮によって永久変形した
り、当接部分がずれたすせず、シールド効果が低下する
ことなく長期にわたって使用することができる。Therefore, it can be used for a long period of time without being permanently deformed due to compression, without shifting of the abutting portion, and without deteriorating the shielding effect, as in the conventional case.
以下、本発明の望ましい実施例を添付図面に基づいて詳
細に説明する。Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
第１図および第２図において示すように、電波シールド
材Ａは、枠部材１を導電性シート材２が被覆して構成さ
れている。As shown in FIGS. 1 and 2, the radio wave shielding material A is constructed by covering a frame member 1 with a conductive sheet material 2. As shown in FIGS.
枠部材１は弾力性を有し、永久変形しに（いプラスチッ
ク、例えばポリプロピレン等によって形成されている。The frame member 1 is made of plastic, such as polypropylene, which has elasticity and is resistant to permanent deformation.
そして、枠部材１は平坦状の取付片１１と断面湾曲状の
当接片１２とを有し、長尺状に形成されている。The frame member 1 has a flat attachment piece 11 and an abutment piece 12 having a curved cross section, and is formed in an elongated shape.
枠部材１の取付片１１は、筐体３の主体部３１に適宜間
隔でビス４によってビス止めされるもので、主体部３１
と密着するように平坦状に形成されている。また、この
取付片１１は弾力性のあるプラスチック製であるので、
ビス止めされない中間部分においても、撓んだりして主
体部３１から浮上がることがない。The mounting pieces 11 of the frame member 1 are screwed to the main body part 31 of the casing 3 with screws 4 at appropriate intervals.
It is formed into a flat shape so that it comes into close contact with the In addition, since this mounting piece 11 is made of elastic plastic,
Even in the intermediate portion which is not fixed with screws, it does not bend or rise above the main body portion 31.
当接片１２は取付片１１より連続して一体成型されてお
り、先端を湾曲状にカールして、はぼ円筒状に形成され
ている。そして、この当接片１２は第２回に示すように
、適宜間隔で設けられた切り込み１３によって分断され
ることにより、適度な弾性力を発揮し、筐体３の扉３２
の開閉に支障を来すことがなく、また扉３２に反り等の
変形が生じた場合でも、その変形に追随して分断された
等接片１２．１２、・・・がそれぞれ弾性変形して、扉
３２に密着することができるようになっている。The abutment piece 12 is integrally molded continuously from the attachment piece 11, and has a curved tip to form a substantially cylindrical shape. As shown in the second part, this contact piece 12 is divided by the notches 13 provided at appropriate intervals, so that it exerts an appropriate elastic force, and the door 32 of the housing 3
Even if the door 32 is deformed such as warping, the equitangential pieces 12, 12, . . . are elastically deformed following the deformation. , can be brought into close contact with the door 32.
導電性シート材２は、銅やニンケル等の金属をアクリル
繊維等にメツキしてなる導電性布や、ポリエステルフィ
ルム等にアルミ金属導電性フィルムのようなシールド特
性を有するシート材からなる。そして、導電性シート材
２は前記プラスチック製枠部材１の取付片１１および当
接片１２に一体的に被覆されている。ここで導電性シー
ト材２の材料が上記のようなポリエステルフィルムにア
ルミを蒸着してなるものについては、導電性シ−ト材２
の一面、取付片１１に接触する面に接着剤を塗布するこ
とによって取付片１１に導電性シート２が貼着される。The conductive sheet material 2 is made of a conductive cloth made by plating acrylic fiber or the like with metal such as copper or nickel, or a sheet material having shielding properties such as an aluminum metal conductive film on a polyester film or the like. The conductive sheet material 2 is integrally covered with the mounting piece 11 and the contact piece 12 of the plastic frame member 1. Here, if the material of the conductive sheet material 2 is made by vapor-depositing aluminum on a polyester film as described above, the conductive sheet material 2
The conductive sheet 2 is attached to the attachment piece 11 by applying an adhesive to one side of the plate, which is the side that comes into contact with the attachment piece 11 .
そして、当接片１２側の端部２１は剥離しないように、
当接片１２の端縁１２１に巻込まれている。Then, the end portion 21 on the side of the contact piece 12 is made so as not to peel off.
It is wrapped around the edge 121 of the contact piece 12.
又、前記のように導電性シート材２が導電性布である場
合、先に説明したように接着剤を使用して取付片１１に
貼着させると、接着剤の油分が導電性シート材２を浸通
することにより、シールド特性が悪くなる欠点がある。In addition, when the conductive sheet material 2 is a conductive cloth as described above, when it is attached to the mounting piece 11 using an adhesive as described above, the oil content of the adhesive becomes the conductive sheet material 2. Penetration has the disadvantage that shielding characteristics deteriorate.
このような有性の導電性シート材２の場合については、
第３図に示すように導電性シート２の両端部２１ （Ｂ
、Ｃ）を棒状の芯材２２に縫い付け、この芯材２２を枠
部材１の当接片１２の端縁１２１と取付片との間に挟み
込むことによって導電性シート２を貼着するものである
。In the case of such a conductive sheet material 2,
As shown in FIG. 3, both ends 21 (B
, C) are sewn onto a rod-shaped core material 22, and the conductive sheet 2 is attached by sandwiching this core material 22 between the edge 121 of the contact piece 12 of the frame member 1 and the mounting piece. be.
このようにして、シールド特性を有する導電性シート２
が弾力性を有する湾曲状当接片１２の形成されたプラス
チック製枠部材１に一体的に貼着す°ることにより、筐
体３の主体部３１と扉３２との間に弾性的に密着して、
筐体３内の電子機器から発生する電磁波が外部へ洩れる
のを防ぐものである。In this way, the conductive sheet 2 having shielding properties
is integrally attached to the plastic frame member 1 on which the curved contact piece 12 having elasticity is formed, so that the main body 31 of the casing 3 and the door 32 are elastically tightly attached. do,
This prevents electromagnetic waves generated from electronic equipment inside the housing 3 from leaking to the outside.
〔発明の効果）
以上の説明から明らかなように、本発明による電波シー
ルド材によれば、弾力性を有するプラスチック製枠部材
の湾曲状当接片が筐体の側板や扉によって圧縮されたと
き、弾性変形して、その弾性力によって密着して、シー
ルド効果を高めることができ、さらに従来のスポンジ等
の軟質発泡材の芯材のように長時間の圧縮を受けても永
久変形することがな（、長期にわたって使用することが
できる。[Effects of the Invention] As is clear from the above description, according to the radio wave shielding material of the present invention, when the curved contact piece of the elastic plastic frame member is compressed by the side plate or door of the housing, , it can be elastically deformed, and its elastic force allows it to adhere tightly, increasing the shielding effect.Furthermore, unlike the core material of conventional soft foam materials such as sponge, it does not undergo permanent deformation even when subjected to long-term compression. (Can be used for a long time.
また、取付片が当接片と一体に形成され、当接片と同様
に弾力性を存しているため、適宜間隔でビス止めしても
、中間部において撓んだりして筐体との密着性が損なわ
れることがな（、取扱いが容易である。In addition, since the mounting piece is formed integrally with the contact piece and has elasticity like the contact piece, even if screwed at appropriate intervals, the intermediate part may flex and may not connect to the casing. No loss of adhesion (and easy handling).
第１図は本発明の実施例を示す断面図、第２図は本発明
の実施例を示す斜視図、第３図は本発明の他の実施例を
示す断面図、第４図は従来例を示す断面図である。
図において、
Ａは電波シールド材、
１は枠部材、
１１は取付片、
１２は当接片、
２は導電性シート材である。
第１図Fig. 1 is a sectional view showing an embodiment of the present invention, Fig. 2 is a perspective view showing an embodiment of the invention, Fig. 3 is a sectional view showing another embodiment of the invention, and Fig. 4 is a conventional example. FIG. In the figure, A is a radio wave shielding material, 1 is a frame member, 11 is a mounting piece, 12 is an abutting piece, and 2 is a conductive sheet material. Figure 1
Claims (1)
を形成してなるプラスチック製枠部材（１）と、前記枠
部材（１）を被覆する導電性シート材（２）とよりなる
電波シールド材。A contact piece (12) with a curved cross section is attached to one end of the mounting piece (11).
A radio wave shielding material comprising a plastic frame member (1) formed of a plastic frame member (1) and a conductive sheet material (2) covering the frame member (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1628389A JPH02198199A (en) | 1989-01-27 | 1989-01-27 | Radio wave shielding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1628389A JPH02198199A (en) | 1989-01-27 | 1989-01-27 | Radio wave shielding material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02198199A true JPH02198199A (en) | 1990-08-06 |
Family
ID=11912227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1628389A Pending JPH02198199A (en) | 1989-01-27 | 1989-01-27 | Radio wave shielding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02198199A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022540288A (en) * | 2019-05-13 | 2022-09-15 | スリーエム イノベイティブ プロパティズ カンパニー | Conductive multilayer films and gaskets |
-
1989
- 1989-01-27 JP JP1628389A patent/JPH02198199A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022540288A (en) * | 2019-05-13 | 2022-09-15 | スリーエム イノベイティブ プロパティズ カンパニー | Conductive multilayer films and gaskets |
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