JPH0810232Y2 - Joining structure of electromagnetic wave shielding member - Google Patents

Description

【考案の詳細な説明】 ［考案の目的］ （産業上の利用分野） 本考案は、各種電子機器、電気機器から発生するノイ
ズとしての電磁波を遮蔽するシールドケース、シールド
ルーム等に使用される電磁波遮蔽部材の接合構造の改良
に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention is an electromagnetic wave used in a shield case, a shield room, etc. that shields electromagnetic waves as noise generated from various electronic devices and electric devices. The present invention relates to an improvement in a joint structure of a shielding member.

（従来の技術） 一般に、多数の電子回路等により構成されるコンピュ
ータ、ワープロ等の各種電子機器、電気機器からは、そ
れらの回路が作動することによってノイズとなる電磁波
が発生し、これが外部の同様の機器に対していわゆる電
磁波障害を引き起こすことがある。又、反対に外部に高
電圧源等が存在する場合には、それらの回路に電磁場障
害が発生することがある。(Prior Art) Generally, various electronic devices such as computers, word processors, etc., and electric devices, which are composed of a large number of electronic circuits, generate electromagnetic waves that become noise due to the operation of those circuits, and this is similar to the external May cause so-called electromagnetic interference with other devices. On the contrary, when a high voltage source or the like is present outside, electromagnetic field disturbance may occur in those circuits.

このため従来は、そのような電磁波を遮蔽する遮蔽部
材で形成されたシールドケースによりそれらの機器を覆
い、電磁波障害が生じないようにしている。このような
シールドケースとしては、外観形状に形成されたプラス
チック等の樹脂ケースの内側に、機器のアースに接続さ
れるように導電材や金属材等を付着させたものや、同様
にアースに接続されるいわゆる板金等により同様に外観
形状に形成されたもの等がある。Therefore, conventionally, such devices are covered with a shield case formed of a shielding member that shields such electromagnetic waves so as to prevent electromagnetic interference. As such a shield case, a conductive case or metal material is attached to the inside of a resin case made of plastic or the like formed in the external shape so as to be connected to the earth of the equipment, or similarly connected to the earth. There is also a so-called sheet metal or the like which is similarly formed in an external shape.

又、そのような電磁波障害を防止するために、機器か
ら発生する電磁波を測定する場合には、シールドルーム
と呼ばれる測定空間内において、その電磁波を測定して
いる。このシールドルームは、測定空間内に外部の電磁
波が侵入しないように壁面が、接地された金属材等の遮
蔽部材により形成されており、被測定機器からの電磁波
のみを測定することができるようになっている。Further, in order to prevent such electromagnetic interference, when measuring the electromagnetic waves generated from the equipment, the electromagnetic waves are measured in a measurement space called a shield room. In this shielded room, the wall surface is formed by a shielding member such as a grounded metal material so that external electromagnetic waves do not enter the measurement space, so that only electromagnetic waves from the device under test can be measured. Has become.

このようにシールドケースやシールドルームを形成す
る遮蔽部材は、電磁波を完全に遮蔽するためには、継目
や隙間等の電気的な隙間がないことが理想的であるが、
機器を内部に収容したり、測定空間内への出入口等が必
要なことから、部分的に接合部が必要となる。In this way, the shield member that forms the shield case or the shield room is ideally free from electrical gaps such as seams and gaps in order to completely shield electromagnetic waves.
Since the equipment is required to be housed inside and an entrance / exit to / from the measurement space is required, a joint part is partially required.

そこでこのような場合には従来は、例えば第４図、第
５図に示すように遮蔽部材どうしを接合していることが
ある。Therefore, in such a case, conventionally, the shielding members may be joined together as shown in FIGS. 4 and 5, for example.

第４図には、遮蔽部材としての板金により機器の外観
形状に合せて形成された上蓋１と下蓋２とを接合して形
成されるシールドケースの断面が示されており、図示す
るように、上蓋１の端部と下蓋２の端部とが重ね合わさ
れ、その重合部をねじ３によりねじ止めすることによっ
て、上蓋１と下蓋２とを接合している。その重合部に
は、弾力性を有する導電性材料により形成されたいわゆ
るEMIガスケット４が挟み込まれている。これは、上蓋
１と下蓋２とが部分的にねじ止めされるようになってい
るので、ねじ３とねじ３との間において隙間が形成さ
れ、電磁波が漏洩するのを防止するためである。FIG. 4 shows a cross section of a shield case formed by joining an upper lid 1 and a lower lid 2 which are formed by sheet metal as a shielding member in accordance with the external shape of the device, and as shown in the drawing. The end portion of the upper lid 1 and the end portion of the lower lid 2 are overlapped with each other, and the overlapping portion is screwed with the screw 3 to join the upper lid 1 and the lower lid 2. A so-called EMI gasket 4 made of a conductive material having elasticity is sandwiched between the overlapping portions. This is because the upper lid 1 and the lower lid 2 are partially screwed, so that a gap is formed between the screws 3 and the electromagnetic waves are prevented from leaking. .

又、この他には第５図に示すように、上蓋１又は下蓋
２のいずれか一方の端部（図では下蓋２の端部）に接合
板５を突出させて設けておき、この接合板５と他方の蓋
（図では上蓋１）の端部とを同様にEMIガスケット４を
介してねじ３によりねじ止めし、夫々の蓋1,2の端部端
面を当接させて夫々の蓋1,2を接合しているものもあ
る。In addition to this, as shown in FIG. 5, a joining plate 5 is provided so as to project at either end of the upper lid 1 or the lower lid 2 (the end of the lower lid 2 in the figure). Similarly, the joining plate 5 and the end portion of the other lid (upper lid 1 in the figure) are screwed together with the screws 3 through the EMI gasket 4, and the end faces of the respective lids 1 and 2 are brought into contact with each other to bring them into contact with each other. Some also have lids 1 and 2 joined together.

（考案が解決しようとする課題） しかしながら、このような従来の接合構造のように、
ねじとねじとの間に形成される隙間を塞ぐためにEMIガ
スケットを挟み込むようにしても、十分に電磁波を遮蔽
することができなかった。(Problems to be solved by the invention) However, like the conventional joining structure as described above,
Even if an EMI gasket is inserted to close the gap formed between the screws, the electromagnetic waves could not be sufficiently shielded.

これは、一般に電磁波を確実に遮蔽しようとする場合
には、電磁波を遮蔽する遮蔽部材の電気抵抗と磁気抵抗
とをより低くするようにすることが要求されるのに対し
て、一般的なEMIガスケットは、導電率は比較的高い
が、透磁率が比較的低いので、特に低周波磁界に対して
遮蔽能力が低いためである。This is because in general, in order to surely shield an electromagnetic wave, it is required to lower the electric resistance and magnetic resistance of a shielding member that shields the electromagnetic wave. This is because the gasket has a relatively high electric conductivity but a relatively low magnetic permeability, and thus has a low shielding ability especially for a low frequency magnetic field.

さらに、このようなEMIガスケットは比較的高価であ
り、又、接合部の形状によっては、これを装着する作業
が煩雑になる等の問題もあり、EMIガスケットの使用を
なるべく避けたいという要求があった。Further, such an EMI gasket is relatively expensive, and depending on the shape of the joint, there is a problem that the work of mounting it is complicated, and there is a demand to avoid the use of the EMI gasket as much as possible. It was

本考案は、このような従来の問題点を解決するために
成されたものであり、電磁波を確実に遮蔽することがで
きると共に、組立容易な電磁波遮蔽部材の接合構造を提
供することを目的とする。The present invention has been made to solve such conventional problems, and an object thereof is to provide a joint structure of an electromagnetic wave shielding member which can shield electromagnetic waves reliably and is easy to assemble. To do.

［考案の構成］ （課題を解決するための手段） 前記目的を達成するために本考案は、電磁波を遮蔽す
る遮蔽部材どうしを接合する接合構造において、一方の
遮蔽部材の接合端部に、良導体により形成され、先端に
第１接合面が形成された第１接合板を、該第１接合面を
該接合端部端面よりも突出させ、かつ電気的に接続させ
て設け、他方の遮蔽部材の接合端部に、良導体により形
成され、先端に第２接合面が形成された第２接合板を、
該第２接合面が該接合端部端面から前記第１接合面の突
出量よりも少なく引込むように、かつ電気的に接続させ
て設け、前記第１接合面と前記第２接合面とを密着させ
つつ前記第１接合板と前記他方の遮蔽部材とをねじ止め
することを特徴とする。[Means for Solving the Problems] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention is a joint structure in which shield members for shielding electromagnetic waves are joined, and a good conductor is provided at the joint end of one shield member. A first joint plate formed with a first joint surface at the tip, the first joint surface being provided so as to protrude from the joint end portion end surface and electrically connected, and the other shield member A second joint plate formed of a good conductor at the joint end and having a second joint surface at the tip,
The second joint surface is provided so as to be retracted from the joint end portion end surface by less than the protrusion amount of the first joint surface and is electrically connected, and the first joint surface and the second joint surface are brought into close contact with each other. Meanwhile, the first joining plate and the other shielding member are screwed together.

（作用） 上記のように構成された本考案は、以下のように作用
する。(Operation) The present invention configured as described above operates as follows.

第１接合面と第２接合面とが密着した状態で夫々の遮
蔽部材が接合されるので、夫々の遮蔽部材間、及び、ね
じとねじとの間に位置する第１接合板とこれにねじ止め
される遮蔽部材との間に隙間が形成されたとしても、密
着された第１接合面と第２接合面とにより電磁波を確実
に遮蔽することができる。Since the respective shield members are joined in a state where the first joint surface and the second joint surface are in close contact with each other, the first joint plate located between the respective shield members and between the screws and the screw Even if a gap is formed between the shield member and the shield member to be stopped, electromagnetic waves can be reliably shielded by the first and second joint surfaces that are in close contact with each other.

又、第１接合面と第２接合面とを当接させつつ、一方
の遮蔽部材の第１接合板と他方の遮蔽部材とをねじ止め
するだけで第１接合面と第２接合面とが密着した状態に
維持されるので、夫々の遮蔽部材どうしを電磁波が確実
に遮蔽される状態に接合させることが極めて容易とな
る。In addition, the first joining surface and the second joining surface are brought into contact with each other, and the first joining surface and the second joining surface are simply screwed together with the first joining plate of the one shielding member and the other shielding member. Since they are kept in close contact with each other, it becomes extremely easy to join the respective shielding members so that the electromagnetic waves are reliably shielded.

したがって、遮蔽部材どうしを接合させる際にEMIガ
スケット等の電気的及び磁気的隙間を埋める部材が不要
であり、しかも夫々の遮蔽部材どうしを密着させて接合
させることができるので、確実に電磁波を遮蔽すること
ができると共に、このように接合させる組立が容易とな
る。Therefore, when joining the shielding members, there is no need for a member that fills the electrical and magnetic gaps such as an EMI gasket, and since the shielding members can be closely joined to each other, the electromagnetic waves are reliably shielded. In addition, the assembly for joining in this way is facilitated.

（実施例） 以下に、本考案に係る電磁波遮蔽部材の接合構造を図
面に基づいて詳細に説明する。(Example) Hereinafter, the joining structure of the electromagnetic wave shielding member according to the present invention will be described in detail with reference to the drawings.

第１図は、本考案に係る電磁波遮蔽部材の接合構造の
略構成図であり、第２図及び第３図は、この接合構造の
分解図である。尚、これらの図には、従来の技術で説明
したものと同様に、遮蔽部材としての板金により機器の
外観形状に合せて形成された上蓋と下蓋とを接合して形
成されるシールドケースの断面が示されており、従来の
技術で説明した部材と同一部材には、同一符号が付して
ある。FIG. 1 is a schematic configuration diagram of a joint structure of an electromagnetic wave shielding member according to the present invention, and FIGS. 2 and 3 are exploded views of the joint structure. Incidentally, in these figures, similarly to the one described in the prior art, a shield case formed by joining an upper lid and a lower lid formed in accordance with the external shape of the device by a metal plate as a shielding member is shown. A cross section is shown, and the same members as those described in the related art are designated by the same reference numerals.

第１図に示すように、本考案に係る電磁波遮蔽部材の
接合構造は、電磁波遮蔽部材としての夫々の蓋1,2の接
合端部に、先端に相互に密着する接合面が形成された接
合板が夫々設けられて構成されている。As shown in FIG. 1, the joining structure of the electromagnetic wave shielding member according to the present invention is such that the joining end portions of the respective lids 1 and 2 serving as the electromagnetic wave shielding member are formed with joining surfaces that are in close contact with each other at their tips. Each plate is provided and configured.

上蓋１及び下蓋２は、導電性良好な例えば亜鉛メッキ
鋼板によって形成されており、表面にのみ塗装が施して
ある。The upper lid 1 and the lower lid 2 are formed of, for example, a galvanized steel sheet having good conductivity, and only the surface is coated.

塗装が施されていない下蓋２の裏面の接合端部には、
同様の亜鉛メッキ鋼板によって形成された第１接合板10
が取り付けられている。On the joint end of the back surface of the lower lid 2 which is not painted,
First joining plate 10 formed of similar galvanized steel plates
Is attached.

この第１接合板10は、先端部が下蓋２に対して直角に
折り曲げられ、Ｌ字形に形成されており、先端に第１接
合面11が形成されている。そして、この第１接合板10
は、下蓋２の端面よりもその第１接合面11を突出させた
状態で下蓋２の裏面に溶接（ろう付けでも良い。）され
ており、下蓋２に対して導通良好に取付けられている。The first joint plate 10 has an L-shaped end portion bent at a right angle to the lower lid 2 and has a first joint surface 11 formed at the tip end. Then, this first joining plate 10
Is welded (may be brazed) to the back surface of the lower lid 2 in a state where the first joint surface 11 of the lower lid 2 is projected from the end surface of the lower lid 2, and is attached to the lower lid 2 in good conduction. ing.

さらに、この第１接合板10には、下蓋２から突出した
部分のほぼ中央部に上蓋１をねじ止めするためのねじ溝
12が形成されている。このねじ溝12は、図示省略する図
中奥行き方向に複数形成されている。Further, the first joint plate 10 has a screw groove for screwing the upper lid 1 to the substantially central portion of the portion protruding from the lower lid 2.
12 are formed. A plurality of thread grooves 12 are formed in the depth direction in the drawing (not shown).

一方、塗装が施されていない上蓋１の裏面の接合端部
には、同様の亜鉛メッキ鋼板によって形成された第２接
合板13が取付けられている。この第２接合板13は、第１
接合板10と同様に先端部が上蓋１に対して直角に折り曲
げられ、Ｌ字形に形成されており、先端に第２接合面14
が形成されている。On the other hand, a second joint plate 13 formed of a similar galvanized steel plate is attached to the joint end portion of the back surface of the top lid 1 which is not coated. This second joint plate 13 is the first
Like the joining plate 10, the tip portion is bent at a right angle to the upper lid 1 to form an L-shape, and the second joining surface 14 is formed at the tip.
Are formed.

そして、この第２接合板13は、第１接合板10が下蓋２
から突出した分よりもわずかに少なく上蓋１の端面より
も引込んだ状態で上蓋１の裏面に溶接（ろう付けでも良
い。）されており、上蓋１に対して導通良好に取付けら
れている。つまり、第２図及び第３図に示すように、第
１接合板10が下蓋２の接合端面から突出する突出量Ａよ
りも第２接合板13が上蓋１の接合端面から引込む引込量
Ｂが小さくなる（Ａ＞Ｂ）ようになっており、これによ
り第１接合面11と第２接合面14とを当接させた状態では
夫々の蓋1,2の接合端面間に隙間が形成され、夫々の蓋
1,2の表面に付される塗装の厚みの誤差や、夫々の蓋1,2
の寸法誤差を吸収し、確実に夫々の接合面11,14を密着
させることができるようになっている。The second joint plate 13 has the first joint plate 10 as the lower lid 2.
It is welded (or brazed) to the back surface of the upper lid 1 in a state of being slightly retracted from the end surface of the upper lid 1, and is attached to the upper lid 1 in good conduction. That is, as shown in FIG. 2 and FIG. 3, the amount of retraction B that the second joint plate 13 retracts from the joint end face of the upper lid 1 is larger than the amount of protrusion A of the first joint plate 10 that protrudes from the joint end face of the lower lid 2. Becomes smaller (A> B), so that when the first joint surface 11 and the second joint surface 14 are in contact with each other, a gap is formed between the joint end surfaces of the respective lids 1 and 2. , Each lid
The thickness error of the coating on the surface of 1 and 2 and the lids 1 and 2
It is possible to absorb the dimensional error of (3) and surely bring the joint surfaces 11 and 14 into close contact with each other.

又、第１図に示すように上蓋１には、ねじ溝12に合せ
てねじ３を貫通させる貫通孔15が形成されており、上述
したように夫々の接合面11,14を互いに密着させてお
き、この貫通孔15を貫通させてねじ３をねじ溝12にねじ
結合させることによって、上蓋１が第１接合板10に部分
的にねじ止めされ、夫々の蓋1,2どうしを接合すること
ができるようになっている。Further, as shown in FIG. 1, the upper lid 1 is formed with a through hole 15 which allows the screw 3 to pass therethrough in accordance with the screw groove 12, and as described above, the respective joint surfaces 11 and 14 are brought into close contact with each other. Then, the upper lid 1 is partially screwed to the first joint plate 10 by penetrating the through hole 15 and screw-connecting the screw 3 to the thread groove 12, thereby joining the respective lids 1 and 2 together. You can do it.

このような構造とすることによって、上蓋１と下蓋２
とを接合させる場合には、夫々の接合板10,13の第１接
合面11と第２接合面14とを密着させ、上蓋１を第１接合
板10にねじ３によってねじ止めすることによって、夫々
の接合面11,14が密着した状態のまま上蓋１と下蓋２と
を接合させることができる。With such a structure, the upper lid 1 and the lower lid 2
When joining and, the first joining surface 11 and the second joining surface 14 of the respective joining plates 10 and 13 are brought into close contact with each other, and the upper lid 1 is screwed to the first joining plate 10 with the screw 3. The upper lid 1 and the lower lid 2 can be joined while the respective joining surfaces 11 and 14 are in close contact with each other.

したがって、夫々の接合面11,14が密着した状態とな
っているので、夫々の蓋1,2の接合端部や、ねじ３とね
じ３との間に位置する第１接合板10とこれにねじ止めさ
れる上蓋１との間に形成される隙間に電磁波が侵入した
としても、密着された第１接合面11と第２接合面14とに
よりその電磁波を確実に遮蔽することができ、従来のよ
うなEMIガスケット等の電気的及び磁気的隙間を埋める
部材が不要となる。Therefore, since the respective joint surfaces 11 and 14 are in close contact with each other, the joint ends of the respective lids 1 and 2 and the first joint plate 10 located between the screws 3 and Even if an electromagnetic wave enters the gap formed between the upper lid 1 and the upper lid 1 to be screwed, the electromagnetic wave can be reliably shielded by the first bonding surface 11 and the second bonding surface 14 that are in close contact with each other. A member for filling the electrical and magnetic gaps such as the EMI gasket is unnecessary.

又、第１接合面11と第２接合面14とを密着させてお
き、下蓋２の第１接合板10と上蓋１とをねじ３によりね
じ止めするだけで第１接合面11と第２接合面14とが密着
した状態に維持されるので、夫々の蓋1,2を電磁波が確
実に遮蔽される状態に接合させることが極めて容易であ
り、このような組立が極めて容易となる。Further, the first joint surface 11 and the second joint surface 14 are brought into close contact with each other, and the first joint plate 11 of the lower lid 2 and the upper lid 1 are simply screwed together with the screw 3 so that the first joint surface 11 and the second joint surface 11 Since the state of close contact with the joint surface 14 is maintained, it is extremely easy to join the respective lids 1 and 2 in a state in which electromagnetic waves are reliably shielded, and such assembly is extremely easy.

さらに、夫々接合面11,14は、互いに面接触している
ので、上蓋１と下蓋２とは、極めて導通性が良好に接合
されることになり、効果的な電磁波遮蔽が行なわれるこ
とになる。Further, since the joint surfaces 11 and 14 are in surface contact with each other, the upper lid 1 and the lower lid 2 are joined to each other with extremely good conductivity, and effective electromagnetic wave shielding is performed. Become.

さらには、上記実施例のように夫々の接合板10,13が
夫々の蓋1,2に対して直角方向に折り曲げられているの
で、これらの接合板10,13は、夫々の蓋1,2を補強する機
能をかね備えることにもなる。Furthermore, since the respective joint plates 10 and 13 are bent at right angles to the respective lids 1 and 2 as in the above-mentioned embodiment, these joint plates 10 and 13 are formed into the respective lids 1 and 2. It also has a function to reinforce.

尚、本実施例にあっては、遮蔽部材として板金、例え
ば亜鉛メッキ鋼板を例示したが、これに限ることなく、
例えば、従来の技術で説明したように、プラスチック等
の樹脂ケースの内側に、機器のアースに接続されるよう
に導電材や金属材等を付着させたものや、シールドルー
ムの壁面に使用される金属材等の電磁波を遮蔽する遮蔽
部材に適用されるのはもちろんである。In the present embodiment, a sheet metal, for example, a galvanized steel sheet is exemplified as the shielding member, but the present invention is not limited to this.
For example, as explained in the prior art, it is used on the inside of a resin case made of plastic or the like to which a conductive material or a metal material is attached so as to be connected to the ground of the equipment, or a wall surface of a shielded room. Of course, it is applied to a shielding member that shields electromagnetic waves such as a metal material.

又、遮蔽部材としての夫々の蓋の形状は、図示するよ
うな平板状のものに限ることなく、湾曲した形状であっ
ても本考案の接合構造が適用できるのはもちろんであ
る。Further, the shape of each lid as the shielding member is not limited to the flat shape as shown in the figure, and it goes without saying that the joining structure of the present invention can be applied even if it has a curved shape.

さらに、夫々の接合板10,13は、上記実施例に例示し
たように折り曲げなくとも、例えば、平板状に形成して
おき、端面を夫々の接合面とするようにしても良い。
又、夫々の接合板10,13の折り曲げ角度は、上記した直
角に限らず、夫々の接合面が密着させることができる角
度であれば良いのはもちろんである。Further, each of the joining plates 10 and 13 may be formed into, for example, a flat plate shape without being bent as illustrated in the above embodiment, and the end faces may be the joining faces.
Further, the bending angles of the respective joining plates 10 and 13 are not limited to the above-mentioned right angles, and it goes without saying that the angles may be such that the respective joining surfaces can be brought into close contact with each other.

（考案の効果） 以上の説明により明らかように、本考案にあっては以
下のような効果を奏す。(Effects of the Invention) As is clear from the above description, the present invention has the following effects.

第１接合面と第２接合面とが密着した状態で夫々の遮
蔽部材が接合されるので、従来のようなEMIガスケット
等の電気的及び磁気的隙間を埋める部材が不要であるの
で、コストに関して有利となり、しかも夫々の遮蔽部材
どうしが密着して接合されることになるので、確実に電
磁波を遮蔽することができるようになる。Since the respective shielding members are bonded in a state where the first bonding surface and the second bonding surface are in close contact with each other, there is no need for a conventional member such as an EMI gasket that fills the electrical and magnetic gaps. This is advantageous, and since the respective shielding members are closely joined to each other, the electromagnetic waves can be reliably shielded.

又、第１接合面と第２接合面とを当接させて一方の遮
蔽部材の第１接合板と他方の遮蔽部材とをねじ止めする
だけで第１接合面と第２接合面とが密着した状態に維持
されるので、夫々の遮蔽部材どうしを、電磁波が確実に
遮蔽される状態に接合させることが極めて容易となり、
このような組立が容易であるので、生産性が向上する等
の効果も奏す。Further, the first joint surface and the second joint surface are brought into close contact with each other only by bringing the first joint surface and the second joint surface into contact with each other and screwing the first joint plate of the one shield member and the other shield member. It is extremely easy to join the shielding members to each other so that the electromagnetic waves are reliably shielded.
Since such assembling is easy, there is an effect that productivity is improved.

【図面の簡単な説明】[Brief description of drawings]

第１図は、本考案に係る電磁波遮蔽部材の接合構造の略
構成図、第２図及び第３図はこの接合構造の分解図、第
４図及び第５図は従来の接合構造の説明図である。 １……上蓋（遮蔽部材）、２……下蓋（遮蔽部材）、３
……ねじ、10……第１接合板、11……第１接合面、12…
…ねじ溝、13……第２接合板、14……第２接合面、15…
…貫通孔。FIG. 1 is a schematic configuration diagram of a joining structure of an electromagnetic wave shielding member according to the present invention, FIGS. 2 and 3 are exploded views of this joining structure, and FIGS. 4 and 5 are explanatory views of a conventional joining structure. Is. 1 ... Upper lid (shielding member), 2 ... Lower lid (shielding member), 3
…… Screw, 10 …… First joining plate, 11 …… First joining surface, 12…
… Screw groove, 13 …… Second joining plate, 14 …… Second joining surface, 15…
… Through holes.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】電磁波を遮蔽する遮蔽部材どうしを接合す
る接合構造において、 一方の遮蔽部材の接合端部に、良導体により形成され、
先端に第１接合面が形成された第１接合板を、該第１接
合面を該接合端部端面よりも突出させ、かつ電気的に接
続させて設け、 他方の遮蔽部材の接合端部に、良導体により形成され、
先端に第２接合面が形成された第２接合板を、該第２接
合面が該接合端部端面から前記第１接合面の突出量より
も少なく引込むように、かつ電気的に接続させて設け、 前記第１接合面と前記第２接合面とを密着させつつ前記
第１接合板と前記他方の遮蔽部材とをねじ止めすること
を特徴とする電磁波遮蔽部材の接合構造。1. A joint structure in which shield members for shielding electromagnetic waves are joined to each other, the shield member being formed of a good conductor at a joint end portion of one shield member,
A first joining plate having a first joining surface formed at its tip is provided such that the first joining surface projects from the joining end portion end surface and is electrically connected, and is provided on the joining end portion of the other shielding member. , Formed of good conductor,
A second joint plate having a second joint surface formed at its tip is provided so that the second joint surface is retracted from the joint end portion end surface by less than the protrusion amount of the first joint surface, and is electrically connected. The bonding structure of the electromagnetic wave shielding member, wherein the first bonding plate and the other shielding member are screwed together while the first bonding surface and the second bonding surface are in close contact with each other.