JP2002261487A - Device for preventing leakage of electromagnetic wave - Google Patents
Device for preventing leakage of electromagnetic waveInfo
- Publication number
- JP2002261487A JP2002261487A JP2001059442A JP2001059442A JP2002261487A JP 2002261487 A JP2002261487 A JP 2002261487A JP 2001059442 A JP2001059442 A JP 2001059442A JP 2001059442 A JP2001059442 A JP 2001059442A JP 2002261487 A JP2002261487 A JP 2002261487A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic
- electromagnetic wave
- shield
- box
- lid
- 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
Landscapes
- Electric Cable Installation (AREA)
- Details Of Indoor Wiring (AREA)
- Installation Of Indoor Wiring (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】本発明は、通電しているケー
ブル等から放射される電磁波を遮断して、電子機器類に
影響を与えることを防止する電磁波漏洩防止装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic wave leakage prevention device that blocks electromagnetic waves radiated from a current-carrying cable or the like to prevent electronic devices from being affected.
【０００２】[0002]
【従来の技術】一般に、通電しているケーブルは、周囲
に電磁波を放射するものであるが、その電磁波の放射強
度は通電している電流値によって異なるものであり、通
電中の電流値が大きくなるほど電磁波の放射強度が大と
なるものである。特に、この通電中のケーブルが電源ケ
ーブルで、大電流（例えば、２００Ａ）が流されている
場合は、その周辺にかなり強い電磁波が放射されること
になる。2. Description of the Related Art In general, an energized cable emits electromagnetic waves to its surroundings, and the radiation intensity of the electromagnetic waves differs depending on the current value. The radiation intensity of the electromagnetic wave becomes large. In particular, when the energized cable is a power cable and a large current (for example, 200 A) is flowing, a considerably strong electromagnetic wave is radiated around the power cable.
【０００３】このような場合、ケーブルの周辺で使用し
ている電子機器（例えば、パソコン等）に悪影響を与え
るという問題があった。そこで、ケーブルに電磁シール
ドを施して電磁波を周囲に放射させないようにする必要
があり、従来行われていた対策の一例を挙げると、珪素
鋼板等の電磁鋼板をボルト締め等で結合して矩形断面の
筒状体を形成し、その中にケーブルを貫通させることが
行われていた。[0003] In such a case, there is a problem that an electronic device (for example, a personal computer or the like) used around the cable is adversely affected. Therefore, it is necessary to apply an electromagnetic shield to the cable so as not to radiate electromagnetic waves to the surroundings. One example of a measure that has been conventionally performed is to connect a magnetic steel sheet such as a silicon steel sheet by bolting or the like to form a rectangular cross section. It has been practiced to form a tubular body of the type described above and to penetrate the cable therein.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の電磁シールドにおいては、電磁鋼板の結合部である
隅部等から電磁波が漏洩する恐れがあるという問題があ
った。また、ボルト締めしているために、電磁シールド
の組立作業のためのスペースが広く必要であり、特に既
に設置されているケーブルに電磁シールドを施工する場
合等に、スペースが不足して窮屈な作業を行わなくては
ならないという問題があった。例えば、既設のケーブル
は、天井から吊りボルト等で吊り下げ支持されている場
合があるが、この場合、スペースの有効利用の立場から
天井とケーブルとの間に十分な空間を確保することが困
難であり、作業スペースを十分に確保することができな
い恐れがある。本発明の目的は、ケーブルと天井や壁等
との間に十分なスペースが無くても容易に設置すること
ができるとともに、電磁波の漏洩の防止効果の高い電磁
波漏洩防止装置を提供することである。However, in the above-mentioned conventional electromagnetic shield, there is a problem that an electromagnetic wave may leak from a corner or the like which is a connecting portion of the electromagnetic steel sheet. In addition, the bolts require a large space for assembling the electromagnetic shield because of the bolting.Especially, when installing the electromagnetic shield on the already installed cable, the space is insufficient and cramped work is required. There was a problem that must be performed. For example, existing cables may be suspended from the ceiling with hanging bolts, etc., but in this case, it is difficult to secure sufficient space between the ceiling and cables from the standpoint of effective use of space. Therefore, there is a possibility that a sufficient work space cannot be secured. An object of the present invention is to provide an electromagnetic wave leakage prevention device which can be easily installed even if there is not enough space between a cable and a ceiling or a wall, and has a high effect of preventing electromagnetic wave leakage. .
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に本発明の電磁波漏洩防止装置は、通電しているケーブ
ル等から放射される電磁波を遮断する電磁波漏洩防止装
置において、上方及び両端が開放した断面が略凹字形に
形成された樋状の函体外装と、函体外装内に合致して嵌
装され、珪素鋼板等の電磁鋼板で形成された上方開放の
略凹字形断面のシールド函体とから成る函体部と、蓋体
外装の内側に珪素鋼板等の電磁鋼板で形成されたシール
ド蓋体とから成り、函体部の上方開口に嵌合してこれを
覆う電磁遮蔽蓋体部とを備えたことにより、電源ケーブ
ルから発生する電磁波が周囲に放出されることを防止
し、コンピュータ等の電子機器に悪影響を与える電磁波
を遮断することができる。また、接合蓋体と接合函体を
設けることにより、函体部Ｂ及び蓋体部Ｃの接合部から
の電磁波の漏洩を確実に防止することができる。また、
シールド函体及びシールド蓋体の枚数を調節すること
で、電磁遮蔽機能を調節することができる。さらに、既
に設置されている電源ケーブル等の周りにも容易に設置
することができる。シールド函体が電磁鋼板を折曲して
形成されたことにより、電磁波遮蔽効果が高まる。シー
ルド函体及びシールド蓋体が、平板の電磁鋼板がそれぞ
れ所定の寸法の略矩形に切断形成されたことにより、加
工工程が簡略化され、コストの低減が図れる。函体部に
冷却空気導入孔を設け、電磁遮蔽蓋体部に冷却空気排出
孔を設けたことにより、ケーブルを冷却し、通電によっ
て生じるケーブルの発熱の悪影響を防止する。隣合った
電磁波漏洩防止装置の接合部に接合蓋体と接合函体を嵌
合させ、接合部からの電磁波の漏洩を防止したことによ
り、電磁波の漏洩を確実に抑制することができる。According to the present invention, there is provided an electromagnetic wave leakage prevention device for blocking electromagnetic waves radiated from an energized cable or the like. A trough-shaped box exterior with a cross section formed in a substantially concave shape, and a shield box with a substantially concave cross section that is fitted and fitted inside the box exterior and that is made of an electromagnetic steel plate such as a silicon steel plate and has an open top. An electromagnetic shielding lid, which is made up of a housing part consisting of a body and a shielding lid made of an electromagnetic steel sheet such as a silicon steel plate inside the lid exterior, and fits into the upper opening of the housing part to cover it With this configuration, it is possible to prevent electromagnetic waves generated from the power cable from being emitted to the surroundings, and to block electromagnetic waves that adversely affect electronic devices such as computers. Further, by providing the joining lid and the joining box, it is possible to reliably prevent the leakage of the electromagnetic wave from the joining portion of the box B and the cover C. Also,
The electromagnetic shielding function can be adjusted by adjusting the number of shield boxes and shield lids. Furthermore, it can be easily installed around an already installed power cable or the like. Since the shielding box is formed by bending the electromagnetic steel plate, the electromagnetic wave shielding effect is enhanced. Since the shield box and the shield lid are each formed by cutting a flat electromagnetic steel sheet into a substantially rectangular shape having a predetermined size, the processing steps are simplified and the cost can be reduced. By providing a cooling air introduction hole in the housing and a cooling air discharge hole in the electromagnetic shielding lid, the cable is cooled and the adverse effect of heat generation of the cable caused by energization is prevented. Since the joining lid and the joining box are fitted to the joining portions of the adjacent electromagnetic wave leakage preventing devices to prevent the leakage of the electromagnetic waves from the joining portions, the leakage of the electromagnetic waves can be surely suppressed.
【０００６】[0006]
【発明の実施の形態】断面が略凹字形に形成された樋状
の函体外装と、函体外装内に合致して嵌装され、珪素鋼
板等の電磁鋼板で形成された略凹字形断面のシールド函
体とから成る函体部と、蓋体外装の内側に珪素鋼板等の
電磁鋼板で形成されたシールド蓋体とから成り、函体部
の上方開口に嵌合してこれを覆う電磁遮蔽蓋体部とを備
えた電磁波漏洩防止装置を提供することである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A trough-shaped casing having a substantially concave cross section, and a substantially concave cross section formed of a magnetic steel sheet such as a silicon steel sheet, which is fitted and fitted in the casing. And a shield lid made of a magnetic steel sheet such as a silicon steel plate inside the lid exterior, which fits into the upper opening of the box and covers it. An object of the present invention is to provide an electromagnetic wave leakage prevention device including a shielding lid.
【０００７】[0007]
【実施例】本発明の実施例を、図を参照して説明する。
図１に参照して、本発明の電磁波漏洩防止装置を説明す
ると、電磁波漏洩防止装置Ａは、上方及び両端が開放し
た断面が略凹字形に形成された樋状の函体外装３と、函
体外装３内に嵌装され、珪素鋼板等の電磁鋼板で形成さ
れた１枚または２枚以上の上方開放の略凹字形断面のシ
ールド函体４と、函体外装３とシールド函体４とを結合
させる結合ボルト５を備えた電磁遮蔽函体部Ｂを有して
いる。An embodiment of the present invention will be described with reference to the drawings.
Referring to FIG. 1, the electromagnetic wave leakage prevention device according to the present invention will be described. An electromagnetic wave leakage prevention device A comprises a trough-shaped case exterior 3 having a generally concave-shaped cross section open at the top and at both ends. One or two or more upper-opened shield-boxes 4 fitted in the body exterior 3 and made of an electromagnetic steel sheet such as a silicon steel sheet, and having a substantially concave cross section; Has an electromagnetic shielding box part B provided with a coupling bolt 5 for coupling the two.
【０００８】函体外装３の外装側壁３ａの上端を開口内
方に折曲して外装側端縁３ｂを形成し、上記側壁３ｂ内
側に接するシールド函体４の函体側壁４ａの上端を開口
内方に折曲して函体側端縁４ｂを形成する。The upper end of the exterior side wall 3a of the casing exterior 3 is bent inward to form an exterior side edge 3b, and the upper end of the casing side wall 4a of the shield casing 4 which is in contact with the inside of the side wall 3b is opened. It is bent inward to form a box-side edge 4b.
【０００９】電磁遮蔽函体部Ｂの上方開口に嵌合してこ
れを覆い、角筒状の電磁波漏洩防止装置を形成する電磁
遮蔽蓋体部Ｃは、対向する２辺を折曲して縁部６ａを有
する蓋体外装６と、蓋体外装６の内側に珪素鋼板等の電
磁鋼板で形成された１枚または２枚以上のシールド蓋体
７とを備えている。The electromagnetic shielding lid C, which fits into and covers the upper opening of the electromagnetic shielding box B to form a rectangular cylindrical electromagnetic wave leakage prevention device, has two opposing sides bent at the edges. A cover exterior 6 having a portion 6a, and one or two or more shield lids 7 formed of an electromagnetic steel plate such as a silicon steel plate inside the cover exterior 6 are provided.
【００１０】図２に示すように、電磁遮蔽函体部Ｂの上
方開口に電磁遮蔽蓋体部Ｃを嵌合させて、所定長さの矩
形断面の角筒状電磁波漏洩防止装置Ａを形成して、電源
ケーブル１の外周を覆い、電磁波の漏洩を防止する。図
３において、単数または複数の電源ケーブル１は、吊り
ボルト２により支持された支持板８の上に載せて配設さ
れており、上記図２に示す電磁波漏洩防止装置Ａで覆っ
て電磁波の漏洩を防止する。As shown in FIG. 2, an electromagnetic shielding lid C is fitted into the upper opening of the electromagnetic shielding box B to form a rectangular cylindrical electromagnetic wave leakage preventing device A having a rectangular section with a predetermined length. Thus, the outer circumference of the power cable 1 is covered to prevent leakage of electromagnetic waves. In FIG. 3, one or a plurality of power cables 1 are placed on a support plate 8 supported by hanging bolts 2 and covered with an electromagnetic wave leakage prevention device A shown in FIG. To prevent
【００１１】電磁波漏洩防止装置Ａは予め設定された長
さで形成されており、複数の電磁波漏洩防止装置Ａを連
結して任意の長さに形成してケーブルを覆うものである
が、図４に示すように、電磁波漏洩防止装置Ａの連結部
において、函体外装３の一端に段を設けて挿入部３ｃを
形成したもので、他端に隣合った他の函体外装３の挿入
部３ｃを挿入嵌合させるものである。函体外装３の両外
装側端縁３ｂ，３ｂの間の距離を、吊りボルト２，２の
間の距離よりも大きくすることにより、電磁波の漏洩箇
所を少なくできる。The electromagnetic wave leakage prevention device A is formed to have a predetermined length and is formed by connecting a plurality of electromagnetic wave leakage prevention devices A to an arbitrary length to cover a cable. As shown in the figure, in the connecting portion of the electromagnetic wave leakage prevention device A, a step is provided at one end of the housing 3 to form an insertion portion 3c, and the insertion portion of another housing 3 adjacent to the other end is formed. 3c is inserted and fitted. By making the distance between both outer side edges 3b, 3b of the housing 3 larger than the distance between the suspension bolts 2, 2, the leakage of electromagnetic waves can be reduced.
【００１２】図５に示すように、電磁遮蔽蓋体部Ｃは、
蓋体外装６の一端に切欠６ｃが形成され、隣合った蓋体
外装６の切欠が設けられていない他端と接合すること
で、切欠６ｃにより、吊りボルト２の貫通孔を形成す
る。なお、貫通孔を通る吊りボルト２の周囲に金属板特
に電磁鋼板から成る閉塞板（図示略）を設けることで吊
りボルト２の貫通孔からの電磁波の漏洩を確実に防止す
ることができる。As shown in FIG. 5, the electromagnetic shielding lid C is
A notch 6c is formed at one end of the lid exterior 6 and is joined to the other end of the adjacent lid exterior 6 where the notch is not provided, so that the through-hole of the suspension bolt 2 is formed by the notch 6c. By providing a closing plate (not shown) made of a metal plate, particularly an electromagnetic steel plate, around the suspension bolt 2 passing through the through hole, it is possible to reliably prevent leakage of electromagnetic waves from the through hole of the suspension bolt 2.
【００１３】ここで、蓋体外装６の切欠６ｃは両端に設
けて、接合部において電磁遮蔽蓋体部Ｃを２重にする
と、電磁波遮蔽効果を一層向上させる。また、シールド
函体及びシールド蓋体の枚数を調節することで、電磁遮
蔽機能を調節することができる。なお、蓋体外装につい
てのみ述べてきたが、内面にシールド蓋体が設けられて
いることは勿論である。Here, when the notch 6c of the cover exterior 6 is provided at both ends and the electromagnetic shielding cover C is doubled at the joint portion, the electromagnetic wave shielding effect is further improved. In addition, the electromagnetic shielding function can be adjusted by adjusting the number of shield boxes and shield lids. Although only the lid exterior has been described, it goes without saying that the shield lid is provided on the inner surface.
【００１４】接合部に生じる隙間からの電磁波の漏洩を
防止するために、図６及び図７に示すように、両端部に
吊りボルト２を通す切欠１０ａを有する板状の接合蓋体
１０と、略凹字形に形成され、函体外装３を覆う接合函
体１１とを、函体部Ｂの函体外装３の連結位置に被せ
る。As shown in FIGS. 6 and 7, in order to prevent electromagnetic waves from leaking from a gap generated at the joint, a plate-shaped joining lid 10 having notches 10a through which hanging bolts 2 pass is provided at both ends. A joint box 11 which is formed in a substantially concave shape and covers the box casing 3 is put on the connecting position of the box casing 3 of the box part B.
【００１５】接合函体１１は、図６に示すように、略凹
字形に折曲形成され、水平部１１ａの両端が上方に屈曲
されて縦壁部１１ｂが形成され、縦壁部１１ｂの上端が
内方向に屈曲されて係止部１１ｃが形成され、係止部１
１ｃの自由端側に支持ボルト２を通す切欠１１ｄが形成
されており、函体外装３の低部及び側部を覆い、電磁遮
蔽蓋体部Ｃの上面に係止部１１ｃが係合して函体外装３
に係合する。As shown in FIG. 6, the joining box 11 is bent substantially in a concave shape, and both ends of a horizontal portion 11a are bent upward to form a vertical wall portion 11b, and an upper end of the vertical wall portion 11b is formed. Are bent inward to form a locking portion 11c, and the locking portion 1
A notch 11d for passing the support bolt 2 is formed on the free end side of 1c, covers the lower part and the side part of the housing 3, and the engaging part 11c engages with the upper surface of the electromagnetic shielding lid part C. Box exterior 3
Engages.
【００１６】なお、接合蓋体１０と接合函体１１は、そ
れぞれ内面側に電磁鋼板が設けられてシールド機能を高
くしている。ここで、上記実施例においては、函体外装
３と、蓋体外装６と、接合蓋体１０及び接合函体１１
は、その材質を特定しておらず、通常の鋼板で形成して
も良いものであるが、電磁鋼板で形成することにより、
一層のシールド効果が得られるものである。The joining lid 10 and the joining box 11 are each provided with an electromagnetic steel plate on the inner side to enhance the shielding function. Here, in the above embodiment, the case exterior 3, the cover exterior 6, the joining lid 10 and the joining case 11
The material is not specified, it may be formed of a normal steel plate, but by forming with an electromagnetic steel plate,
A further shielding effect can be obtained.
【００１７】この構成により、電源ケーブルから発生す
る電磁波が周囲に放出されることを防止し、コンピュー
タ等の電子機器に悪影響を与える電磁波を遮断すること
ができる。また、接合蓋体と接合函体を設けることによ
り、函体部Ｂ及び蓋体部Ｃの接合部からの電磁波の漏洩
を確実に防止することができる。さらに、既に設置され
ている電源ケーブル等の周りにも容易に設置することが
できる。With this configuration, it is possible to prevent the electromagnetic waves generated from the power cable from being emitted to the surroundings, and to block the electromagnetic waves that adversely affect electronic devices such as a computer. Further, by providing the joining lid and the joining box, it is possible to reliably prevent the leakage of the electromagnetic wave from the joining portion of the box B and the cover C. Furthermore, it can be easily installed around an already installed power cable or the like.
【００１８】また、電磁鋼板を設ける手段として、上記
実施例においては、函体外装３、蓋体外装６、接合蓋体
１０及び接合函体１１の形状に合わせて加工し、内面側
に当接させているが、図８の異なる実施例に示すよう
に、平板の電磁鋼板がそれぞれ所定の寸法の略矩形に切
断形成されたシールド板である側壁シールド１４、底部
シールド１２、蓋部シールド１３を、それぞれ１枚また
は２枚以上の重ねて、函体外装３、蓋体外装６、接合蓋
体１０及び接合函体１１の内面側に当接させて配置し、
電磁波漏洩防止機能を備える。As means for providing an electromagnetic steel sheet, in the above-described embodiment, it is processed in accordance with the shapes of the casing exterior 3, the lid exterior 6, the joining lid 10 and the joining casing 11, and is brought into contact with the inner surface side. However, as shown in a different embodiment of FIG. 8, the side wall shield 14, the bottom shield 12, and the lid shield 13, each of which is a shield plate formed by cutting a flat electromagnetic steel sheet into a substantially rectangular shape having a predetermined size, are used. , One or two or more sheets are respectively stacked and placed in contact with the inner surface sides of the casing exterior 3, the lid exterior 6, the joining lid 10, and the joining casing 11,
It has an electromagnetic wave leakage prevention function.
【００１９】上記側壁シールド１４、底部シールド１
２、蓋部シールド１３の固定手段としては、ボルト締め
によるものや、支持爪を設けてこれを係止するも等が考
えられる。側壁シールド１４、底部シールド１２、蓋部
シールド１３を、図示の如く、一方のシールド板の平面
端部に隣合ったシールド板の側端を突き当てて固定する
ことにより、電磁波が漏洩する隙間をなくすことができ
る。The above-mentioned side wall shield 14, bottom shield 1
2. As the fixing means of the lid shield 13, it is conceivable to use bolt fastening or to provide a supporting claw to lock it. As shown in the drawing, the side wall shield 14, the bottom shield 12, and the lid shield 13 are fixed by abutting the side end of the shield plate adjacent to the flat end of one of the shield plates as shown in FIG. Can be eliminated.
【００２０】この構成によると、電磁鋼板を折曲加工す
る必要が無く、製作コストの低減を図ることができると
ともに、平板に形成した電磁鋼板を重ねるだけであるか
ら、作業工程が簡略化され一層のコスト低減を促進でき
る。According to this configuration, it is not necessary to bend the electromagnetic steel sheet, and it is possible to reduce the manufacturing cost. In addition, since the electromagnetic steel sheets formed on a flat plate are merely stacked, the working process is simplified and further improved. Cost reduction can be promoted.
【００２１】図９及び図１０においてさらに異なる実施
例について説明すると、電磁遮蔽函体部Ｂの底面に矩形
（例えば、略正方形または長方形。本実施例では正方
形）の開口を設けて冷却空気導入孔１５とし、電磁遮蔽
蓋体部Ｃの上面に矩形の開口を設けて冷却空気排出孔１
６としている。 冷却空気排出孔１６の周囲に角筒状の
ガイド筒１６ａが立設され、該ガイド筒１６ａの内部
に、十文字に組み合わせたガイド片１６ｂ，１６ｃが嵌
装されており、冷却空気導入孔１５の周囲に角筒状のガ
イド筒１５ａが立設され、ガイド筒１５ａ内に十文字に
組み合わせたガイド片（ガイド片１６ｂ，１６ｃ同形に
つき図示略）が嵌装されている。Referring to FIGS. 9 and 10, a further different embodiment will be described. A rectangular (for example, substantially square or rectangular; square in this embodiment) opening is provided on the bottom surface of the electromagnetic shielding box B to provide a cooling air introduction hole. 15 and a rectangular opening is provided on the upper surface of the electromagnetic shielding lid C to form the cooling air discharge hole 1.
It is 6. A rectangular cylindrical guide tube 16a is erected around the cooling air discharge hole 16, and guide pieces 16b, 16c combined in a cross shape are fitted inside the guide tube 16a. A rectangular tubular guide tube 15a is provided upright, and guide pieces (not shown for the same shape as the guide pieces 16b and 16c) fitted in a cross shape are fitted in the guide tube 15a.
【００２２】冷却空気導入孔１５と冷却空気排出孔１６
の孔の大きさ、即ちそれぞれの一辺の寸法Ｄに略比例し
て高さＨを大きくする。隣合った２個の冷却空気導入孔
１５、または冷却空気排出孔１６の間の距離Ｐは、適宜
定めるものとする。また、冷却空気導入孔１５と冷却空
気排出孔１６を円形孔としても良いものであるが、上述
のとおり，矩形の孔とした方が加工しやすいものであ
る。Cooling air inlet 15 and cooling air outlet 16
, Ie, the height H is increased substantially in proportion to the dimension D of each side. The distance P between two adjacent cooling air introduction holes 15 or cooling air discharge holes 16 is determined as appropriate. The cooling air introduction hole 15 and the cooling air discharge hole 16 may be circular holes. However, as described above, rectangular holes are easier to process.
【００２３】また、ガイド片は、冷却空気導入孔１５と
冷却空気排出孔１６の寸法が小さい場合は設けなくても
良いものであり、冷却空気導入孔１５と冷却空気排出孔
１６の寸法がさらに小さい場合は、ガイド筒を設けない
ようにすることもできる。さらに、冷却空気導入孔１５
の位置と冷却空気排出孔１６の位置とは、必ずしも一致
させる必要がなく、互いにずらした位置でも良いもので
ある。Further, the guide piece need not be provided when the size of the cooling air introduction hole 15 and the cooling air discharge hole 16 is small, and the size of the cooling air introduction hole 15 and the cooling air discharge hole 16 is further increased. If it is small, the guide tube may not be provided. Further, the cooling air introduction hole 15
And the position of the cooling air discharge hole 16 do not necessarily have to coincide with each other, and may be shifted from each other.
【００２４】この構成により、筒状の電磁波漏洩防止装
置Ａの内部に冷却空気をスムーズに導入し、且つスムー
ズに排出でき、中のケーブルを効率よく冷却することが
できる。According to this configuration, the cooling air can be smoothly introduced and discharged smoothly into the cylindrical electromagnetic wave leakage prevention device A, and the inside cable can be efficiently cooled.
【００２５】[0025]
【発明の効果】本発明は、上述のとおり構成されている
から次に述べる効果を奏する。上方及び両端が開放した
断面が略凹字形に形成された樋状の函体外装と、函体外
装内に合致して嵌装され、珪素鋼板等の電磁鋼板で形成
された上方開放の略凹字形断面のシールド函体とから成
る函体部と、蓋体外装の内側に珪素鋼板等の電磁鋼板で
形成されたシールド蓋体とから成り、函体部の上方開口
に嵌合してこれを覆う電磁遮蔽蓋体部とを備えたことに
より、電源ケーブルから発生する電磁波が周囲に放出さ
れることを防止し、コンピュータ等の電子機器に悪影響
を与える電磁波を遮断することができる。また、シール
ド函体及びシールド蓋体の枚数を調節することで、電磁
遮蔽機能を調節することができる。また、接合蓋体と接
合函体を設けることにより、函体部Ｂ及び蓋体部Ｃの接
合部からの電磁波の漏洩を確実に防止することができ
る。さらに、既に設置されている電源ケーブル等の周り
にも容易に設置することができる。シールド函体が電磁
鋼板を折曲して形成されたことにより、電磁波遮蔽効果
が高まる。シールド函体及びシールド蓋体が、平板の電
磁鋼板がそれぞれ所定の寸法の略矩形に切断形成された
ことにより、加工工程が簡略化され、コストの低減が図
れる。函体部に冷却空気導入孔を設け、電磁遮蔽蓋体部
に冷却空気排出孔を設けたことにより、ケーブルを冷却
し、通電によって生じるケーブルの発熱の悪影響を防止
する。隣合った電磁波漏洩防止装置の接合部に接合蓋体
と接合函体を嵌合させ、接合部からの電磁波の漏洩を防
止したことにより、電磁波の漏洩を確実に抑制すること
ができる。Since the present invention is constructed as described above, it has the following effects. A trough-shaped box exterior with a cross section that is open at the top and both ends formed in a substantially concave shape, and an upwardly open substantially concave formed of a magnetic steel sheet such as a silicon steel sheet that is fitted and fitted inside the box exterior. It consists of a box consisting of a shield box with a V-shaped cross section, and a shield lid made of an electromagnetic steel plate such as a silicon steel plate inside the lid exterior. By providing the electromagnetic shielding cover, the electromagnetic waves generated from the power cable can be prevented from being emitted to the surroundings, and the electromagnetic waves that adversely affect electronic devices such as computers can be blocked. The electromagnetic shielding function can be adjusted by adjusting the number of shield boxes and shield lids. Further, by providing the joining lid and the joining box, it is possible to reliably prevent the leakage of the electromagnetic wave from the joining portion between the box B and the cover C. Furthermore, it can be easily installed around an already installed power cable or the like. Since the shielding box is formed by bending the electromagnetic steel plate, the electromagnetic wave shielding effect is enhanced. Since the shield box and the shield lid are each formed by cutting a flat electromagnetic steel plate into a substantially rectangular shape having a predetermined size, the processing steps are simplified and the cost can be reduced. By providing a cooling air introduction hole in the housing and a cooling air discharge hole in the electromagnetic shielding lid, the cable is cooled and the adverse effect of heat generation of the cable caused by energization is prevented. Since the joining lid and the joining box are fitted to the joining portions of the adjacent electromagnetic wave leakage preventing devices to prevent the leakage of the electromagnetic waves from the joining portions, the leakage of the electromagnetic waves can be surely suppressed.
【図１】本発明の実施例である電磁波漏洩防止装置の図
２におけるＩ−Ｉ線断面図である。FIG. 1 is a cross-sectional view taken along line II in FIG. 2 of an electromagnetic wave leakage prevention device according to an embodiment of the present invention.
【図２】本発明に係る電磁波漏洩防止装置の斜視図であ
る。FIG. 2 is a perspective view of an electromagnetic wave leakage prevention device according to the present invention.
【図３】本発明を適用する電源ケーブルの説明図であ
る。FIG. 3 is an explanatory diagram of a power cable to which the present invention is applied.
【図４】本発明の実施例である電磁波漏洩防止装置の函
体部の平面図である。FIG. 4 is a plan view of a casing of the electromagnetic wave leakage prevention device according to the embodiment of the present invention.
【図５】本発明の実施例である電磁波漏洩防止装置の蓋
体部の平面図である。FIG. 5 is a plan view of a lid of the electromagnetic wave leakage prevention device according to the embodiment of the present invention.
【図６】本発明の実施例である電磁波漏洩防止装置の接
合函体の部分拡大図である。FIG. 6 is a partially enlarged view of a joint box of the electromagnetic wave leakage prevention device according to the embodiment of the present invention.
【図７】本発明の実施例である電磁波漏洩防止装置の接
合蓋体の部分拡大図である。FIG. 7 is a partially enlarged view of a joining lid of the electromagnetic wave leakage prevention device according to the embodiment of the present invention.
【図８】本発明の異なる実施例である電磁波漏洩防止装
置の断面図である。FIG. 8 is a sectional view of an electromagnetic wave leakage prevention device according to another embodiment of the present invention.
【図９】本発明のさらに異なる実施例の電磁波漏洩防止
装置の斜視図である。FIG. 9 is a perspective view of an electromagnetic wave leakage prevention device according to still another embodiment of the present invention.
【図１０】同じく電磁波漏洩防止装置の側面図である。FIG. 10 is a side view of the electromagnetic wave leakage prevention device.
Ａ 電磁波漏洩防止装置 Ｂ 電磁遮蔽函体部 Ｃ 電磁遮蔽蓋体部 １ 電源ケーブル ２ 吊りボルト ３ 函体外装 ４ シールド函体 ５ 結合ボルト ６ 蓋体外装 ７ シールド蓋体 ８ 支持板 ９ 段部 １０ 接合蓋体 １１ 接合函体 １２ 底部シールド １３ 蓋部シールド１３ １４ 側壁シールド A Electromagnetic Wave Leakage Prevention Device B Electromagnetic Shield Box C Electromagnetic Shield Lid 1 Power Cable 2 Hanging Bolt 3 Box Exterior 4 Shield Box 5 Coupling Bolt 6 Lid Exterior 7 Shield Lid 8 Support Plate 9 Step 10 Joint Lid 11 Joint box 12 Bottom shield 13 Lid shield 13 14 Side wall shield
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０２Ｇ 9/04 Ｈ０５Ｋ 7/20 Ｇ Ｈ０５Ｋ 7/20 Ｈ０２Ｇ 3/28 Ｃ Ｆターム(参考） 5E321 AA01 BB53 CC30 GG05 GG09 GH03 5E322 BA01 EA07 EA11 5G357 BA02 BA10 BB05 BC05 BC07 DA05 DB01 DC02 DD02 DD06 DD14 DE03 DE08 DG06 5G363 AA09 BA01 DA18 DB03 5G369 AA01 AA14 BA03 DB05 EA01Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (Reference) H02G 9/04 H05K 7/20 G H05K 7/20 H02G 3/28 CF term (Reference) 5E321 AA01 BB53 CC30 GG05 GG09 GH03 5E322 BA01 EA07 EA11 5G357 BA02 BA10 BB05 BC05 BC07 DA05 DB01 DC02 DD02 DD06 DD14 DE03 DE08 DG06 5G363 AA09 BA01 DA18 DB03 5G369 AA01 AA14 BA03 DB05 EA01
Claims (5)
電磁波を遮断する電磁波漏洩防止装置において、上方及
び両端が開放した断面が略凹字形に形成された樋状の函
体外装と、函体外装内に合致して嵌装され、珪素鋼板等
の電磁鋼板で形成された上方開放の略凹字形断面のシー
ルド函体とから成る函体部と、蓋体外装の内側に珪素鋼
板等の電磁鋼板で形成されたシールド蓋体とから成り、
函体部の上方開口に嵌合してこれを覆う電磁遮蔽蓋体部
とを備えたことを特徴とする電磁波漏洩防止装置。1. An electromagnetic wave leakage prevention device for blocking electromagnetic waves radiated from an energized cable or the like, comprising: a trough-shaped outer casing having a generally concave-shaped cross section with upper and both ends open; A box part consisting of an electromagnetic steel sheet, such as a silicon steel sheet, fitted and fitted in the exterior, and a shield box having a substantially concave cross-section and opened upward, and an electromagnetic steel sheet, such as a silicon steel sheet, inside the lid exterior. And a shield lid made of steel plate,
An electromagnetic wave leakage prevention device, comprising: an electromagnetic shielding lid portion that fits into and covers the upper opening of the box portion.
いて、シールド函体が電磁鋼板を折曲して形成されたこ
とを特徴とする電磁波漏洩防止装置。2. The electromagnetic wave leakage prevention device according to claim 1, wherein the shield box is formed by bending an electromagnetic steel plate.
いて、シールド函体及びシールド蓋体が、平板の電磁鋼
板がそれぞれ所定の寸法の略矩形に切断形成されたこと
を特徴とする電磁波漏洩防止装置。3. The electromagnetic wave leakage prevention device according to claim 1, wherein the shield box and the shield lid are each formed by cutting a flat electromagnetic steel plate into a substantially rectangular shape having a predetermined size. apparatus.
漏洩防止装置において、函体部に冷却空気導入孔を設
け、電磁遮蔽蓋体部に冷却空気排出孔を設けたことを特
徴とする電磁波漏洩防止装置。4. The electromagnetic wave leakage prevention device according to claim 1, wherein a cooling air introduction hole is provided in the box portion, and a cooling air discharge hole is provided in the electromagnetic shielding lid portion. To prevent electromagnetic wave leakage.
防止装置において、隣合った電磁波漏洩防止装置の接合
部に接合蓋体と接合函体を嵌合させ、接合部からの電磁
波の漏洩を防止したことを特徴とする電磁波漏洩防止装
置。5. The electromagnetic wave leakage prevention device according to claim 1, wherein the joining lid and the joining box are fitted to the joining portion of the adjacent electromagnetic wave leakage preventing device, and the electromagnetic wave leaks from the joining portion. An electromagnetic wave leakage prevention device characterized by preventing the occurrence of electromagnetic waves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001059442A JP2002261487A (en) | 2001-03-05 | 2001-03-05 | Device for preventing leakage of electromagnetic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001059442A JP2002261487A (en) | 2001-03-05 | 2001-03-05 | Device for preventing leakage of electromagnetic wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002261487A true JP2002261487A (en) | 2002-09-13 |
Family
ID=18919001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001059442A Pending JP2002261487A (en) | 2001-03-05 | 2001-03-05 | Device for preventing leakage of electromagnetic wave |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002261487A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005013450A1 (en) * | 2003-07-30 | 2005-02-10 | Prysmian Cavi E Sistemi Energia S.R.L. | Method for shielding the magnetic field generated by an electrical power transmission line and electrical power transmission line so shielded |
| JP2006014401A (en) * | 2004-06-22 | 2006-01-12 | Nittetsu Steel Sheet Corp | Cable duct |
| KR100629900B1 (en) | 2006-07-04 | 2006-10-02 | (주)원건축사사무소 | Cable tray structure for isolating electromagnetic waves of electric supply line in an apartment house |
| KR100670604B1 (en) * | 2004-06-15 | 2007-01-17 | 이종녕 | Combined duct and cable tray |
| CN101989738A (en) * | 2009-08-06 | 2011-03-23 | 金载旭 | Wire duct double as sound-emitting and light-emitting type lane and boundary mark and construction method thereof |
| CN105811333A (en) * | 2014-12-29 | 2016-07-27 | 华北电力大学 | Cable routing box for intelligent electronic device of substation |
| RU2657069C1 (en) * | 2017-06-09 | 2018-06-08 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный архитектурно-строительный университет" | Modular communication collector |
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-
2001
- 2001-03-05 JP JP2001059442A patent/JP2002261487A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7622669B2 (en) | 2003-07-30 | 2009-11-24 | Prysmian Cavi E Sistemi Energia S.R.L. | Method for shielding the magnetic field generated by an electrical power transmission line and electrical power transmission line so shielded |
| EP1652280B1 (en) * | 2003-07-30 | 2019-02-27 | Prysmian S.p.A. | Method for shielding the magnetic field generated by an electrical power transmission line and electrical power transmission line so shielded |
| WO2005013450A1 (en) * | 2003-07-30 | 2005-02-10 | Prysmian Cavi E Sistemi Energia S.R.L. | Method for shielding the magnetic field generated by an electrical power transmission line and electrical power transmission line so shielded |
| AU2003255060B2 (en) * | 2003-07-30 | 2009-10-22 | Prysmian Cavi E Sistemi Energia S.R.L. | Method for shielding the magnetic field generated by an electrical power transmission line and electrical power transmission line so shielded |
| KR100670604B1 (en) * | 2004-06-15 | 2007-01-17 | 이종녕 | Combined duct and cable tray |
| JP4658528B2 (en) * | 2004-06-22 | 2011-03-23 | 日鉄住金鋼板株式会社 | Duct for cable |
| JP2006014401A (en) * | 2004-06-22 | 2006-01-12 | Nittetsu Steel Sheet Corp | Cable duct |
| KR100629900B1 (en) | 2006-07-04 | 2006-10-02 | (주)원건축사사무소 | Cable tray structure for isolating electromagnetic waves of electric supply line in an apartment house |
| CN101989738A (en) * | 2009-08-06 | 2011-03-23 | 金载旭 | Wire duct double as sound-emitting and light-emitting type lane and boundary mark and construction method thereof |
| CN105811333A (en) * | 2014-12-29 | 2016-07-27 | 华北电力大学 | Cable routing box for intelligent electronic device of substation |
| CN105811333B (en) * | 2014-12-29 | 2018-08-14 | 华北电力大学 | A kind of cable routing box for intelligent substation electronic device |
| RU2657069C1 (en) * | 2017-06-09 | 2018-06-08 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный архитектурно-строительный университет" | Modular communication collector |
| CN111327004A (en) * | 2020-03-09 | 2020-06-23 | 宿州青智网络科技有限公司 | Control equipment protection device for intelligent network |
| CN111327004B (en) * | 2020-03-09 | 2020-12-25 | 阜阳智企生产力促进中心有限公司 | Control equipment protection device for intelligent network |
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