JP2001044646A - Casing for mounting printed wiring board - Google Patents
Casing for mounting printed wiring boardInfo
- Publication number
- JP2001044646A JP2001044646A JP11213671A JP21367199A JP2001044646A JP 2001044646 A JP2001044646 A JP 2001044646A JP 11213671 A JP11213671 A JP 11213671A JP 21367199 A JP21367199 A JP 21367199A JP 2001044646 A JP2001044646 A JP 2001044646A
- Authority
- JP
- Japan
- Prior art keywords
- wiring board
- printed wiring
- chassis
- screws
- rib
- 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
- Casings For Electric Apparatus (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、プリント配線基板
実装用筐体に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed circuit board mounting case.
【０００２】[0002]
【従来の技術】従来のプリント配線基板実装用筐体の構
造を図２を参照して説明する。図２は、従来のプリント
配線基板実装用筐体（以下、シャーシと省略する。）の
リブの構造を示す図である。プリント配線基板１がシャ
ーシ２のリブの上に実装されネジ３で固定される構造で
ある。シャーシ２のリブが平滑であるためプリント配線
基板１を実装してネジ３で固定した場合、プリント配線
基板１のネジとネジの間が反ってしまいプリント配線基
板１とシャーシ２との間に隙間ができる。この隙間は高
周波回路等アースを多く必要とする回路にとって、極め
て重要な問題である。2. Description of the Related Art The structure of a conventional printed circuit board mounting case will be described with reference to FIG. FIG. 2 is a diagram showing a rib structure of a conventional printed wiring board mounting housing (hereinafter, abbreviated as a chassis). The printed wiring board 1 is mounted on ribs of a chassis 2 and fixed with screws 3. When the printed wiring board 1 is mounted and fixed with the screws 3 because the ribs of the chassis 2 are smooth, the gap between the screws of the printed wiring board 1 and the screws is warped, and a gap is formed between the printed wiring board 1 and the chassis 2. Can be. This gap is a very important problem for a circuit requiring a large amount of ground such as a high-frequency circuit.
【０００３】[0003]
【発明が解決しようとする課題】前述の従来技術のプリ
ント配線基板実装用筐体ではリブが平滑であるため、プ
リント配線基板を実装してネジで固定した場合、プリン
ト配線基板のネジとネジの間が反ってしまいプリント配
線基板とシャーシの間に隙間ができてしまいアースが多
く取れないという欠点があった。Since the ribs of the above-mentioned prior art printed wiring board mounting case have smooth ribs, when the printed wiring board is mounted and fixed with screws, the screws of the printed wiring board and the screws are not fixed. There is a drawback that the space is warped and a gap is formed between the printed wiring board and the chassis, so that a large amount of ground cannot be obtained.
【０００４】そこで本発明ではこの欠点を除去し、隙間
のないプリント配線基板実装用筐体を提供することを目
的とする。Accordingly, it is an object of the present invention to eliminate this drawback and to provide a printed wiring board mounting case having no gap.
【０００５】[0005]
【課題を解決するための手段】前述の目的を達成するた
め、本発明ではプリント配線基板の反りをあらかじめ想
定してシャーシのリブのネジとネジの間を盛り上げてお
き隙間のないプリント配線基板実装用筐体を提供できる
ようにしたものである。In order to achieve the above-mentioned object, according to the present invention, the warpage of the printed wiring board is assumed in advance, and the screws between the ribs of the chassis are raised to mount the printed wiring board without any gap. It is possible to provide a housing for use.
【０００６】[0006]
【発明の実施の形態】本発明の一実施例であるプリント
配線基板実装用筐体の構造を図１を参照して説明する。
図１は、本実施例のプリント配線基板実装用筐体（以
下、シャーシと省略する。）のリブの構造を示す図であ
る。本実施例では、プリント配線基板１の反りをあらか
じめ想定してシャーシ２のリブのネジとネジの間を盛り
上げておき、プリント配線基板１を実装したとき、隙間
ができないようにしたものである。その結果、アースを
多くとることができ、高周波回路等アースを多く必要と
する回路の安定化に極めて顕著な効果がある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a printed wiring board mounting case according to an embodiment of the present invention will be described with reference to FIG.
FIG. 1 is a diagram showing a structure of a rib of a printed wiring board mounting case (hereinafter abbreviated as a chassis) of the present embodiment. In the present embodiment, the warpage of the printed wiring board 1 is assumed in advance, and the gap between the screws of the ribs of the chassis 2 is raised so that no gap is formed when the printed wiring board 1 is mounted. As a result, a large number of grounds can be obtained, which has a remarkable effect on stabilization of a circuit requiring a large amount of ground such as a high-frequency circuit.
【０００７】[0007]
【発明の効果】本発明によれば、プリント配線基板を実
装したときにシャーシとの間の隙間を除去することがで
きることにより、アースを多く取ることができるため、
高周波回路等アースを多く必要とする回路の安定化に極
めて顕著な効果がある。また、シャーシは鋳物であるた
め金型を一度作ってしまえばコストの増加にならず経済
的である。According to the present invention, since a gap between the printed circuit board and the chassis can be removed when the printed circuit board is mounted, a large amount of ground can be obtained.
This has a remarkable effect on stabilization of a circuit requiring a large amount of ground such as a high-frequency circuit. Further, since the chassis is a casting, once the mold is made, the cost is not increased and the chassis is economical.
【図１】本発明の一実施例であるプリント配線基板実装
用筐体のリブの構造を示す図FIG. 1 is a diagram showing a structure of a rib of a printed wiring board mounting case according to an embodiment of the present invention;
【図２】従来のプリント配線基板実装用筐体のリブの構
造を示す図FIG. 2 is a diagram showing a structure of a rib of a conventional housing for mounting a printed wiring board.
１：プリント配線基板 ２：シャーシ ３：ネジ 1: Printed circuit board 2: Chassis 3: Screw
Claims (1)
プリント配線基板実装用筐体において、 前記ネジとネジの間のリブの中央部分を盛り上げる構造
にしたことを特徴とするプリント配線基板実装用筐体。1. A printed wiring board mounting housing for mounting a printed wiring board using screws, wherein a structure is provided in which a central portion of a rib between the screws is raised. Housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11213671A JP2001044646A (en) | 1999-07-28 | 1999-07-28 | Casing for mounting printed wiring board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11213671A JP2001044646A (en) | 1999-07-28 | 1999-07-28 | Casing for mounting printed wiring board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001044646A true JP2001044646A (en) | 2001-02-16 |
Family
ID=16643049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11213671A Pending JP2001044646A (en) | 1999-07-28 | 1999-07-28 | Casing for mounting printed wiring board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001044646A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024009500A1 (en) * | 2022-07-08 | 2024-01-11 | 日立Astemo株式会社 | Electronic control device and method for manufacturing electronic control device |
-
1999
- 1999-07-28 JP JP11213671A patent/JP2001044646A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024009500A1 (en) * | 2022-07-08 | 2024-01-11 | 日立Astemo株式会社 | Electronic control device and method for manufacturing electronic control device |
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