JPH043519Y2 - - Google Patents
Info
- Publication number
- JPH043519Y2 JPH043519Y2 JP7372986U JP7372986U JPH043519Y2 JP H043519 Y2 JPH043519 Y2 JP H043519Y2 JP 7372986 U JP7372986 U JP 7372986U JP 7372986 U JP7372986 U JP 7372986U JP H043519 Y2 JPH043519 Y2 JP H043519Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- printed circuit
- subrack
- shield case
- protrusion
- 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.)
- Expired
Links
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
Description
【考案の詳細な説明】
〔概要〕
導電性レールを設けたサブラツクに実装するブ
リント基板のシールド構造であつて、導電性レー
ルと平行な対向するシールドケース面に突出部を
形成し、前記導電性レールに突出部が係合接触す
ることにより、シールド特性が向上する。[Detailed description of the invention] [Summary] This is a shielding structure for a printed circuit board mounted on a subrack provided with conductive rails, in which a protrusion is formed on the facing shield case surface parallel to the conductive rail, and the Shielding characteristics are improved by the protruding portion engaging and contacting the rail.
本考案は、サブラツクに実装するプリント基板
の、とくにシールド特性の向上を図つたシールド
構造に関する。
The present invention relates to a shield structure for improving the shielding characteristics of a printed circuit board mounted on a subrack.
高周波を用いる通信装置は、装置に実装される
プリント基板ユニツトの相互干渉を防止してシー
ルド特性を向上するために、プリント基板個々に
シールドケースが付設される。 In communication devices that use high frequencies, each printed circuit board is provided with a shield case in order to prevent mutual interference between the printed circuit board units mounted on the device and improve shielding characteristics.
第２図は、従来のシールド構造を説明する要部
側断面図である。
FIG. 2 is a side sectional view of a main part of a conventional shield structure.
図において、導電性の良好な金属の導電性レー
ル１１を設けたサブラツク１に、プリント基板２
に（図示しない）部品を搭載し、該プリント基板
２の部品搭載面に導電性の良好な金属スペーサ３
を介して、金属板からなるシールドケース４を締
付ねじ６で取付けプリント基板２を、前記サブラ
ツク１の導電性レール１１に実装するようになつ
ている。 In the figure, a printed circuit board 2 is attached to a subrack 1 provided with a metal conductive rail 11 having good conductivity.
A component (not shown) is mounted on the printed circuit board 2, and a metal spacer 3 with good conductivity is placed on the component mounting surface of the printed circuit board 2.
A shield case 4 made of a metal plate is attached with tightening screws 6, and a printed circuit board 2 is mounted on the conductive rails 11 of the subrack 1.
上記従来のシールドケースはプリント基板の部
品搭載面だけをシールド（カバー）しており、サ
ブラツクと直接に電気的接触していないので、シ
ールド特性が悪いという問題点があつた。
The above-mentioned conventional shield case shields (covers) only the component mounting surface of the printed circuit board and is not in direct electrical contact with the subrack, so it has a problem of poor shielding properties.
本考案は、上記の問題点を解決してシールド特
性の向上を図つたシールド構造を提供するもので
ある。
The present invention provides a shield structure that solves the above problems and improves shielding characteristics.
すなわち、導電性レールを設けたサブラツクに
実装するプリント基板のシールド構造を、プリン
ト基板に取付けるシールドケースの外周の一部に
突出部を形成して、前記サブラツクに前記シール
ドケースに形成した突出部に対応接触する導電性
レールを設けた構成によつて解決される。 That is, the shield structure of a printed circuit board to be mounted on a subrack provided with conductive rails is formed by forming a protrusion on a part of the outer periphery of a shield case to be attached to the printed circuit board, and attaching the shield structure to the protrusion formed on the shield case on the subrack. This is solved by an arrangement in which correspondingly contacting conductive rails are provided.
上記シールド構造は、導電性レールに突出部を
挿入接触せしめるので、サブラツクとシールドケ
ースが直接に電気的導通してシールド特性が良好
となる。
In the above-mentioned shield structure, since the protrusion is inserted into and brought into contact with the conductive rail, the sub-rack and the shield case are directly electrically connected, resulting in good shielding characteristics.
第１図は、本考案の一実施例を説明する要部側
断面図で、第２図と同等の部分については同一符
号を付して記した。
FIG. 1 is a side cross-sectional view of essential parts for explaining an embodiment of the present invention, and parts equivalent to those in FIG. 2 are denoted by the same reference numerals.
図において、導電性レール１１，１２を設けた
サブラツク１に、プリント基板２に部品（図示し
ない）を搭載し、該プリント基板２の部品搭載面
に導電性の良好な金属スペーサ３を介して、外周
の一部（導電性レール１２と平行な対向する面）
に突出部５１を形成した鉄板製のシールドケース
５を締付ねじ６で取付けたプリント基板２を、前
記サブラツク１の導電性レール１１にプリント基
板２を、導電性レール１２にシールドケース５の
突起部５１が嵌合実装するようになつている。こ
こで導電性レール１１と１２の溝の外側壁間の寸
法をｌとすると、プリント基板２にスペーサ３を
介して螺着したシールドケース５の突出部５１
と、前記プリント基板２の裏面との寸法Ｌとの関
係が、
Ｌ≧ｌ
となるようにし、シールドケース５の突出部５１
が導電性レール１２に常時接触するようにスペー
サ３の長さを決定してある。勿論サブラツク１は
接地７が施されている。 In the figure, components (not shown) are mounted on a printed circuit board 2 on a subrack 1 provided with conductive rails 11 and 12, and metal spacers 3 with good conductivity are placed on the component mounting surface of the printed circuit board 2. Part of the outer periphery (surface parallel to and facing the conductive rail 12)
A printed circuit board 2 is attached to a shield case 5 made of iron plate with a protrusion 51 formed therein using a tightening screw 6, the printed circuit board 2 is attached to the conductive rail 11 of the subrack 1, and the protrusion of the shield case 5 is attached to the conductive rail 12. The portion 51 is designed to be fitted and mounted. Here, if the dimension between the outer walls of the grooves of the conductive rails 11 and 12 is l, then the protrusion 51 of the shield case 5 screwed onto the printed circuit board 2 via the spacer 3
The relationship between the dimension L and the back surface of the printed circuit board 2 is L≧l, and the protrusion 51 of the shield case 5
The length of the spacer 3 is determined so that it is always in contact with the conductive rail 12. Of course, the subrack 1 is grounded 7.
なお、サブラツク１およびシールドケース５は
鉄板、アルミニユームその他の導電性の良好な金
属であればよい。 Note that the subrack 1 and the shield case 5 may be made of iron plate, aluminum, or other metals with good conductivity.
以上の説明から明らかなように、本考案によれ
ばシールド特性が向上し、装置の信頼性の向上に
極めて有効である。
As is clear from the above description, the present invention improves the shielding characteristics and is extremely effective in improving the reliability of the device.
第１図は、本考案の一実施例を説明する要部側
断面図、第２図は、従来のシールド構造を説明す
る要部側断面図である。
図において、１はサブラツク、２はプリント基
板、３はスペーサ、４，５はシールドケース、６
は締付ねじ、７は接地、１１，１２は導電性レー
ル、５１は突出部、をそれぞれ示す。
FIG. 1 is a sectional side view of a main part of an embodiment of the present invention, and FIG. 2 is a sectional side view of a main part of a conventional shield structure. In the figure, 1 is a subrack, 2 is a printed circuit board, 3 is a spacer, 4 and 5 are shield cases, and 6
indicates a tightening screw, 7 indicates a ground, 11 and 12 indicate conductive rails, and 51 indicates a protruding portion, respectively.
Claims (1)
プリント基板２のシールドの構造であつて、 該プリント基板２に取付けるシールドケース５
の外周の一部に突出部５１を形成するとともに、
前記サブラツク１に前記シールドケース５に形成
した突出部５１に対応接触する導電性レール１２
を設けたことを特徴とするシールド構造。[Claims for Utility Model Registration] A shield structure for a printed circuit board 2 mounted on a subrack 1 provided with conductive rails, comprising a shield case 5 attached to the printed circuit board 2.
A protrusion 51 is formed on a part of the outer periphery of the
A conductive rail 12 correspondingly contacts the protrusion 51 formed on the shield case 5 on the sub-rack 1.
A shield structure characterized by the provision of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7372986U JPH043519Y2 (en) | 1986-05-15 | 1986-05-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7372986U JPH043519Y2 (en) | 1986-05-15 | 1986-05-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62184797U JPS62184797U (en) | 1987-11-24 |
| JPH043519Y2 true JPH043519Y2 (en) | 1992-02-04 |
Family
ID=30918319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7372986U Expired JPH043519Y2 (en) | 1986-05-15 | 1986-05-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH043519Y2 (en) |
-
1986
- 1986-05-15 JP JP7372986U patent/JPH043519Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62184797U (en) | 1987-11-24 |
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