JPH07231188A - Shielding case - Google Patents
Shielding caseInfo
- Publication number
- JPH07231188A JPH07231188A JP4483894A JP4483894A JPH07231188A JP H07231188 A JPH07231188 A JP H07231188A JP 4483894 A JP4483894 A JP 4483894A JP 4483894 A JP4483894 A JP 4483894A JP H07231188 A JPH07231188 A JP H07231188A
- Authority
- JP
- Japan
- Prior art keywords
- cover
- case
- shield case
- snap
- connector
- 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
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電子回路や電子機器な
どを収容するシールドケースに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield case for accommodating electronic circuits and electronic equipment.
【０００２】[0002]
【従来の技術】従来、シールドケースは導電性樹脂で形
成され、複数の枠体からなり合体される。この際、電磁
波が進入しないようにしたものが実開平３−９７９９６
号公報として知られている。前記公報にはバネ金具６を
枠体内部に向けて貫入、固着したものが示されている。
また、シールドケースはコネクタが必ず必要であり、前
記ケースと前記コネクタ間の隙間からの電磁波の進入を
防止するようにしたものが実開平４−８００９８号公報
として知られている。前記公報には、コネクタ２５，２
６の少なくとも１面側をブラケット部材７で覆ったもの
が示されている。2. Description of the Related Art Conventionally, a shield case is formed of a conductive resin and is composed of a plurality of frames. At this time, the one that prevents the electromagnetic waves from entering is the actual Kaihei 3-97996.
It is known as the Japanese publication. In the above-mentioned publication, the spring metal fitting 6 is inserted and fixed toward the inside of the frame.
A connector is always required for the shield case, and a shield case that prevents the entry of electromagnetic waves through the gap between the case and the connector is known as Japanese Utility Model Laid-Open No. 4-80098. In the publication, the connectors 25 and 2
It is shown that at least one surface side of 6 is covered with the bracket member 7.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来技
術には次のような問題点があった。第１の公報では蓋体
部５とは別のバネ金具６が必要でコスト高となってい
た。第２の公報ではブラケット２７とトレイ１３間に若
干の隙間が形成され完全密閉とはならず、電磁波が進入
し電子回路の誤動作を起すことがあった。本発明は、上
記問題点を解決するためにケース（蓋体）間、ケース
（ブラケット部材）とコネクタ間の隙間を完全になくし
電磁波が全く進入しないようにすることを目的とする。However, the prior art has the following problems. In the first publication, a spring metal fitting 6 different from the lid body 5 is required, resulting in high cost. In the second publication, a slight gap is formed between the bracket 27 and the tray 13 so that the enclosure is not completely sealed, and electromagnetic waves may enter to cause malfunction of the electronic circuit. In order to solve the above problems, it is an object of the present invention to completely eliminate gaps between cases (lids) and between cases (bracket members) and connectors so that electromagnetic waves do not enter at all.
【０００４】[0004]
【課題を解決するための手段】前記目的を達成するため
に、本発明は、導電性樹脂からなる箱状のカバーと箱状
のケースとからなるシールドケースおいて、前記カバー
の内周面に凸部を設け、前記カバーの開口端縁に複数の
スナップ部を設け、前記ケースにはコネクタがその一端
に固着されたプリント基板が固定され、前記ケースは前
記カバーの凸部と前記スナップにより挟持したことを特
徴とする。In order to achieve the above-mentioned object, the present invention provides a shield case comprising a box-shaped cover made of a conductive resin and a box-shaped case. A convex portion is provided, a plurality of snap portions are provided at an opening edge of the cover, a printed circuit board having a connector fixed to one end thereof is fixed to the case, and the case is sandwiched by the convex portion of the cover and the snap. It is characterized by having done.
【０００５】[0005]
【作用】このような構成にすることによりカバーに形成
された凸部とケースの開口端面とが嵌着により密着し、
カバーとケースを密閉する。With this structure, the convex portion formed on the cover and the opening end surface of the case come into close contact with each other by fitting,
Seal the cover and case.
【０００６】[0006]
【実施例】以下、本発明に係る実施例を図１ないし図３
を用いて説明する。シールドケースのカバー１は長方形
の箱状をなし、下端面は開口している。開口側の下端面
近くに突起（凸部）３がカバー１の内周面全周に形成さ
れる。突起３の断面形状は図２に示すように上が傾斜面
３ａ，下が平面３ｂとから形成されている。さらに、下
端面に突出してスナップ４が４個設けられつめ部４ａを
形成し、上が緩い傾斜面４ｂ、下が急な傾斜面４ｃを有
している。しかも、スナップ４は弾力性を有する。コネ
クタ５はプリント基板６に半田付けにより固着され、プ
リント基板は図示しない通常の固定手段、例えばネジ、
ピンなどによりケースに取り付けられている。組付時、
図３に示すようにコネクタ５はカバー１の外側面より一
部分だけ外方へ突出している。カバー１、ケース２、ス
ペーサ７の材質は導電性材料、例えば、カーボン入りゴ
ムまたは樹脂あるいは金属性ファイバー入りゴムまたは
樹脂である。また窓１ａはカバー１の側面に形成され矩
形となっており、コネクタ５の外寸法より大きくなって
いる。Embodiments of the present invention will be described below with reference to FIGS.
Will be explained. The cover 1 of the shield case has a rectangular box shape, and the lower end surface is open. Protrusions (projections) 3 are formed on the entire inner peripheral surface of the cover 1 near the lower end surface on the opening side. As shown in FIG. 2, the cross-sectional shape of the protrusion 3 is formed by an inclined surface 3a on the upper side and a plane 3b on the lower side. Further, four snaps 4 are provided so as to project from the lower end surface to form a pawl portion 4a, and an inclined surface 4b having a gentle upper portion and an inclined surface 4c having a steep lower portion are provided. Moreover, the snap 4 has elasticity. The connector 5 is fixed to the printed circuit board 6 by soldering, and the printed circuit board is provided with an ordinary fixing means (not shown) such as a screw,
It is attached to the case with pins. When assembled,
As shown in FIG. 3, the connector 5 projects outward from the outer surface of the cover 1 only partially. The material of the cover 1, the case 2, and the spacer 7 is a conductive material, for example, rubber or resin containing carbon or rubber or resin containing metal fibers. The window 1a is formed on the side surface of the cover 1 and has a rectangular shape, which is larger than the outer dimension of the connector 5.
【０００７】本実施例ではスナップは４個としたが、こ
れに限定されず２個以上であればよい。また、スナップ
はカバー下端面に突出することなく、カバー内側面で突
起３より端部寄りに設けてもよい。つぎに、本発明に係
る作用を実施例に基づいて説明する。図１の状態で、ま
ず、カバー１の窓１ａをコネクタ５の右端面に合わせ、
つぎにカバー１の上部をケース２側に押しつけることに
より、スナップ４が外方へ弾発的に広がりケース２と嵌
着し図２のようになる。ケース２の上面２ａはカバー１
の突起３の平面部３ｂと全周密着する。つぎに、スペー
サ７を図１の右側からカバー１の窓１ａとコネクタ５間
の隙間に挿入することにより図３に示すようにスペーサ
７が弾性変形して嵌着するとともに密着する。In this embodiment, the number of snaps is four, but the number of snaps is not limited to this and may be two or more. Further, the snap may be provided closer to the end than the projection 3 on the inner surface of the cover without protruding to the lower end surface of the cover. Next, the operation according to the present invention will be described based on Examples. In the state of FIG. 1, first, align the window 1a of the cover 1 with the right end surface of the connector 5,
Next, by pressing the upper portion of the cover 1 toward the case 2, the snap 4 elastically expands outward and fits into the case 2, as shown in FIG. The upper surface 2a of the case 2 is the cover 1
The entire circumference is in close contact with the flat surface portion 3b of the protrusion 3. Next, the spacer 7 is inserted into the gap between the window 1a of the cover 1 and the connector 5 from the right side of FIG. 1, so that the spacer 7 is elastically deformed and fitted and closely adhered as shown in FIG.
【０００８】つぎに、本発明に係るスペーサの他の実施
例を図４で説明する。プリント基板６に取り付けたコネ
クタ５はカバー１の内面より短かくなっている。前述の
ようにカバー１をケース２に嵌着した後、スペーサ８を
カバー１とコネクタ５との隙間に挿入することにより弾
性変形して嵌着し密着する。本発明に係るシールドケー
スの第２実施例を図５ないし図６を用いて説明する。カ
バー９の開口端９ａは同一平面で形成され、その開口端
面から突出して４個のスナップ１１がカバー９の外側よ
り突出して設けられている。ケース１０は有底箱状で外
側面にスナップ１１のつめ部１１ａが掛止されるように
段部１０ａが形成されている。コネクタ５部のシールド
ケースのカバー９、ケース１０の開口端面は対向一致し
ている。Next, another embodiment of the spacer according to the present invention will be described with reference to FIG. The connector 5 attached to the printed circuit board 6 is shorter than the inner surface of the cover 1. After the cover 1 is fitted into the case 2 as described above, the spacer 8 is inserted into the gap between the cover 1 and the connector 5 so that it is elastically deformed and fitted into close contact. A second embodiment of the shield case according to the present invention will be described with reference to FIGS. The opening end 9a of the cover 9 is formed in the same plane, and four snaps 11 projecting from the opening end surface are provided so as to project from the outside of the cover 9. The case 10 is in the shape of a box with a bottom, and a step portion 10a is formed on the outer surface thereof so that the claw portion 11a of the snap 11 is hooked. The cover 9 of the shield case of the connector 5 and the opening end faces of the case 10 face each other.
【０００９】[0009]
【発明の効果】以上のように本発明によれば、つぎの効
果を奏する。カバーの凸部とスナップによるケースの挟
持でカバーの凸部とケースの上端面とを密着し、それに
より電磁波を完全遮断できる。さらにスペーサを有する
ものの場合、カバーの窓とコネクタ隙間とを弾性体で密
着することにより電磁波を完全遮断できる。As described above, the present invention has the following effects. By sandwiching the case with the projection of the cover and the snap, the projection of the cover and the upper end surface of the case are brought into close contact with each other, thereby completely blocking electromagnetic waves. Further, in the case of having a spacer, electromagnetic waves can be completely shielded by adhering the cover window and the connector gap with an elastic body.
【００１０】[0010]
【図１】本発明に係るシールドケースの第１実施例の分
解斜視図である。FIG. 1 is an exploded perspective view of a first embodiment of a shield case according to the present invention.
【図２】本発明に係るシールドケースの第１実施例のＰ
−Ｐ矢視断面図である。FIG. 2 P of the first embodiment of the shield case according to the present invention
FIG. 6 is a cross-sectional view taken along the line P.
【図３】本発明に係るスペーサの第１実施例のＱ−Ｑ矢
視一部断面図である。FIG. 3 is a partial sectional view of the spacer according to the first embodiment of the present invention taken along the line QQ.
【図４】本発明に係るスペーサの第２実施例のＱ−Ｑ矢
視一部断面図である。FIG. 4 is a partial cross-sectional view of the second embodiment of the spacer according to the present invention as seen in the direction of arrows QQ.
【図５】本発明に係るシールドケースの第２実施例のＰ
−Ｐ矢視断面図である。FIG. 5: P of the second embodiment of the shield case according to the present invention
FIG. 6 is a cross-sectional view taken along the line P.
【図６】本発明に係るシールドケースの第２実施例の一
部断面図である。FIG. 6 is a partial cross-sectional view of a second embodiment of the shield case according to the present invention.
１，９…カバー ２，１０…ケース ３…突起 ４，１１…スナップ ５…コネクタ ７，８…スペーサ 1, 9 ... Cover 2, 10 ... Case 3 ... Protrusion 4, 11 ... Snap 5 ... Connector 7, 8 ... Spacer
Claims (2)
のケースとからなるシールドケースおいて、前記カバー
の内周面に凸部を設け、前記カバーの開口端縁に複数の
スナップ部を設け、前記ケースにはコネクタがその一端
に固着されたプリント基板が固定され、前記ケースは前
記カバーの凸部と前記スナップにより挟持されたことを
特徴とするシールドケース。1. A shield case including a box-shaped cover made of a conductive resin and a box-shaped case, wherein a convex portion is provided on an inner peripheral surface of the cover, and a plurality of snap portions are provided at an opening edge of the cover. The shield case is characterized in that a printed circuit board having a connector fixed to one end thereof is fixed to the case, and the case is sandwiched by the convex portion of the cover and the snap.
れた窓と、前記コネクタの隙間を弾性体で密着すること
を特徴とするシールドケース。2. The shield case according to claim 1, wherein the window formed in the cover and the gap between the connectors are closely attached by an elastic body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4483894A JPH07231188A (en) | 1994-02-18 | 1994-02-18 | Shielding case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4483894A JPH07231188A (en) | 1994-02-18 | 1994-02-18 | Shielding case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07231188A true JPH07231188A (en) | 1995-08-29 |
Family
ID=12702623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4483894A Pending JPH07231188A (en) | 1994-02-18 | 1994-02-18 | Shielding case |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07231188A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009194098A (en) * | 2008-02-13 | 2009-08-27 | Fujikura Ltd | Housing structure of module |
| JP2013211493A (en) * | 2012-03-30 | 2013-10-10 | Furukawa Electric Co Ltd:The | High frequency shield structure |
| JP2021044346A (en) * | 2019-09-10 | 2021-03-18 | Ｎｅｃプラットフォームズ株式会社 | Mounting board structure |
-
1994
- 1994-02-18 JP JP4483894A patent/JPH07231188A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009194098A (en) * | 2008-02-13 | 2009-08-27 | Fujikura Ltd | Housing structure of module |
| JP2013211493A (en) * | 2012-03-30 | 2013-10-10 | Furukawa Electric Co Ltd:The | High frequency shield structure |
| JP2021044346A (en) * | 2019-09-10 | 2021-03-18 | Ｎｅｃプラットフォームズ株式会社 | Mounting board structure |
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