JP3690620B2 - Printed circuit board support device - Google Patents
Printed circuit board support device Download PDFInfo
- Publication number
- JP3690620B2 JP3690620B2 JP28829896A JP28829896A JP3690620B2 JP 3690620 B2 JP3690620 B2 JP 3690620B2 JP 28829896 A JP28829896 A JP 28829896A JP 28829896 A JP28829896 A JP 28829896A JP 3690620 B2 JP3690620 B2 JP 3690620B2
- Authority
- JP
- Japan
- Prior art keywords
- printed circuit
- circuit board
- connector
- wedge
- support device
- 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 - Fee Related
Links
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- Coupling Device And Connection With Printed Circuit (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
Description
【０００１】
【産業上の利用分野】
本発明はプリント基板支持装置に関し、更に詳しくは振動に起因するコネクタの接触不良を改良したプリント基板支持装置に関する。
【０００２】
【従来の技術】
図３は従来のプリント基板支持装置を有する内器引出し形計器の要部構成図である。図において１は表示部１ａ、操作部１ｂからなる前面パネルである。２は内器を構成する方形状のプリント基板２ａであり、このプリント基板には電源回路や制御回路（図示せず）等が設けられ、後方に位置する一辺に第１コネクタ２ｂが固定されている。
【０００３】
３はケースであり、このケース３の内側にはプリント基板２ａの厚さｔ1よりわずかに大きな間隙ｔ2を有し、プリント基板を案内するガイド３ａが設けられている。４は内器２側にプリント基板４ａが設けられた後部パネルであり、ケース３の後方を覆ってねじ等により固定されている。この後部パネル４の外側にはプリント基板４ａに接続する入出力ターミナル（図示せず）が設けられ、プリント基板４ａの一方の面（ケースの内側）には第１コネクタ２ｂに接続する第２コネクタ４ｂが固定されている。
【０００４】
なお、図では省略するが、プリント基板２ａの前面パネル１側にもプリント基板２ａに接続するプリント基板が配置され、後部パネル側と同様にコネクタにより、表示部１ａや操作部１ｂに接続されているものとする。
【０００５】
上記の構成において、内器２のプリント基板２ａをガイド３ａに沿ってケース３内に挿入すると第１コネクタ２ｂと第２コネクタが接続し、入出力ターミナルに接続された例えばセンサ（図示せず）からの出力信号が電気的に処理されて表示部１ａに表示される。
【０００６】
【発明が解決しようとする課題】
ところで、図３に示す従来例においてはプリント基板２ａは第１コネクタ２ｂと第２コネクタ４ｂの接続（及び前面パネル側のコネクタ接続）により支持されている。従って、この計器が振動（微振動）をうけた場合コネクタの接触面に微摺動が生じ接触抵抗が増大する等の問題があった。
【０００７】
【課題を解決するための手段】
本発明は上記従来技術の問題点を解決するために成されたもので、一辺に第１コネクタが固定された方形状のプリント基板と、前記第１コネクタと接続する第２コネクタが固定された支持板からなるプリント基板支持装置において、前記支持板に大きな角度（θ１）を有する楔状のガイドと、この楔状のガイドの底部から所定の長さ延長された前記楔状のガイドの角度より小さな角度（θ２）を有する楔状切り欠き溝を有し、該楔状切り欠き溝の入り口の幅は前記プリント基板の厚さよりも大きく形成し、底部の幅は前記プリント基板の厚さよりも小さく形成することにより、前記第１コネクタが第２コネクタに挿入された状態でプリント基板を前記楔状切り欠き溝に食い込ませて固定したので、微振動の影響を低減することができる。
【０００８】
【発明の実施の形態】
図１は本発明の実施の形態の一例を示す要部構成図である。図において図３と同一要素には同一符号を付しており、図３に示す前面パネル１やケース３は省略している。図１において、１４は後部パネルであり、この後部パネル１４は上部及び下部がコ字状に折り曲げられていて、折り曲げたコ字部の寸法Ｈがプリント基板２ａの縦幅ｈよりわずかに小さく形成されている。
１４ａは折り曲げ部１４ｂにプリント基板２ａに対向して形成された楔状の切り欠き溝である。
【０００９】
図２は図１に示す切り欠き溝１４ａをＺ方向から見た拡大図である。図においてθ1で示す角度の部分はガイドであり、例えば４０〜４５°程度に形成されている。また、θ2で示す角度の部分は楔状に形成された溝で例えば５〜１０°程度に形成されている。この溝の端部から深さｄだけ侵入した部分は第１コネクタ２ｂが第２コネクタ４ｂに挿入された状態でプリント基板２ａの厚さｔ1より少し小さな幅ｔ3に形成されており、この楔状切り欠き溝１４ａにプリント基板２ａが食い込んで厚み方向への動きを規制する様になっている。
【００１０】
上記の構成によれば、プリント基板２ａはコネクタ２ｂ，４ｂを接続した状態で固定されるされるとともに、楔状切り欠き溝１４ａでも固定されることになる。なお、図ではプリント基板２ａを２枚とし、楔状切り欠き溝をコ字状の折り曲げ部の両方に設けた例について示したが、プリント基板は１枚であっても３枚以上であってもよく、楔状切り欠き溝は片側だけに設けてもよい（この場合は後部パネルはＬ字状に折り曲げてもよい）。
【００１１】
【発明の効果】
以上詳しく説明したように本発明によれば、一辺に第１コネクタが固定された方形状のプリント基板と、前記第１コネクタと接続する第２コネクタが固定された支持板からなるプリント基板支持装置において、前記支持板に大きな角度（θ１）を有する楔状のガイドと、この楔状のガイドの底部から所定の長さ延長された前記楔状のガイドの角度より小さな角度（θ２）を有する楔状切り欠き溝を有し、該楔状切り欠き溝の入り口の幅は前記プリント基板の厚さよりも大きく形成し、底部の幅は前記プリント基板の厚さよりも小さく形成することにより、前記第１コネクタが第２コネクタに挿入された状態でプリント基板を前記楔状切り欠き溝に食い込ませて固定したので、計器が振動（微振動）をうけた場合コネクタの接触抵抗が増大することのないプリント板支持装置を実現することができた。
【図面の簡単な説明】
【図１】本発明の実施の形態の一例を示す要部構成図である。
【図２】図１をＺ方向から見た拡大図である。
【図３】従来のプリント板支持装置の一例を示す要部構成図である。
【符号の説明】
２ａ プリント基板
２ｂ 第１コネクタ
４ａ プリント基板
４ｂ 第２コネクタ
１４ 後部パネル
１４ａ 楔状切り欠き溝
１４ｂ 折り曲げ部[0001]
[Industrial application fields]
The present invention relates to a printed circuit board support device, and more particularly to a printed circuit board support device that improves contact failure of a connector caused by vibration.
[0002]
[Prior art]
FIG. 3 is a block diagram of the main part of an internal drawer type instrument having a conventional printed circuit board support device. In the figure, reference numeral 1 denotes a front panel including a display unit 1a and an operation unit 1b. Reference numeral 2 denotes a rectangular printed circuit board 2a constituting the internal unit. The printed circuit board is provided with a power supply circuit, a control circuit (not shown) and the like, and a first connector 2b is fixed to one side located on the rear side. Yes.
[0003]
3 is a case having a slightly larger gap t 2 than the thickness t 1 of the printed circuit board 2a on the inside of the case 3, the guide 3a is provided for guiding the printed circuit board. Reference numeral 4 denotes a rear panel provided with a printed circuit board 4a on the inner unit 2 side. The rear panel covers the back of the case 3 and is fixed by screws or the like. An input / output terminal (not shown) connected to the printed circuit board 4a is provided outside the rear panel 4, and a second connector connected to the first connector 2b is provided on one surface (inside the case) of the printed circuit board 4a. 4b is fixed.
[0004]
Although not shown in the drawing, a printed circuit board to be connected to the printed circuit board 2a is also arranged on the front panel 1 side of the printed circuit board 2a, and is connected to the display unit 1a and the operation unit 1b by a connector similarly to the rear panel side. It shall be.
[0005]
In the above configuration, when the printed circuit board 2a of the internal unit 2 is inserted into the case 3 along the guide 3a, the first connector 2b and the second connector are connected, for example, a sensor (not shown) connected to the input / output terminal. The output signal from is electrically processed and displayed on the display unit 1a.
[0006]
[Problems to be solved by the invention]
Incidentally, in the conventional example shown in FIG. 3, the printed circuit board 2a is supported by the connection of the first connector 2b and the second connector 4b (and the connector connection on the front panel side). Therefore, when this instrument is vibrated (fine vibration), there is a problem that the contact surface of the connector is slightly slid to increase the contact resistance.
[0007]
[Means for Solving the Problems]
The present invention has been made to solve the above-mentioned problems of the prior art, and a rectangular printed board having a first connector fixed to one side and a second connector connected to the first connector are fixed. In a printed circuit board support device comprising a support plate, a wedge-shaped guide having a large angle (θ1) with respect to the support plate, and an angle smaller than the angle of the wedge-shaped guide extended a predetermined length from the bottom of the wedge-shaped guide ( a wedge-shaped cutout groove having θ2), the width of the entrance of the wedge-shaped cutout groove is formed larger than the thickness of the printed circuit board, and the width of the bottom is formed smaller than the thickness of the printed circuit board, Since the printed circuit board is inserted into the wedge-shaped notch groove and fixed in a state where the first connector is inserted into the second connector, the influence of fine vibration can be reduced.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a main part configuration diagram showing an example of an embodiment of the present invention. In the figure, the same elements as those in FIG. 3 are denoted by the same reference numerals, and the front panel 1 and the case 3 shown in FIG. 3 are omitted. In FIG. 1, reference numeral 14 denotes a rear panel. The rear panel 14 has an upper portion and a lower portion folded in a U shape, and the dimension H of the folded U portion is slightly smaller than the vertical width h of the printed circuit board 2a. Has been.
Reference numeral 14a denotes a wedge-shaped notch groove formed in the bent portion 14b so as to face the printed board 2a.
[0009]
FIG. 2 is an enlarged view of the notch groove 14a shown in FIG. 1 as viewed from the Z direction. In the figure, an angle portion indicated by θ 1 is a guide, and is formed at, for example, about 40 to 45 °. Moreover, the angle part shown by (theta) 2 is a groove | channel formed in the shape of a wedge, for example, is formed in about 5-10 degrees. The portion that has entered the depth d from the end of the groove is formed to have a width t 3 that is slightly smaller than the thickness t 1 of the printed circuit board 2a in a state where the first connector 2b is inserted into the second connector 4b. The printed circuit board 2a bites into the wedge-shaped notch groove 14a to restrict the movement in the thickness direction.
[0010]
According to the above configuration, the printed circuit board 2a is fixed in a state where the connectors 2b and 4b are connected, and is also fixed in the wedge-shaped notch groove 14a. Although the figure shows an example in which two printed circuit boards 2a are provided and wedge-shaped cutout grooves are provided in both of the U-shaped bent portions, the number of printed circuit boards may be one or three or more. The wedge-shaped notch groove may be provided only on one side (in this case, the rear panel may be bent in an L shape).
[0011]
【The invention's effect】
As described above in detail, according to the present invention, a printed circuit board support device comprising a rectangular printed circuit board having a first connector fixed to one side and a support plate having a second connector connected to the first connector fixed thereto. A wedge-shaped guide having a large angle (θ1) in the support plate, and a wedge-shaped notch groove having an angle (θ2) smaller than the angle of the wedge-shaped guide extended by a predetermined length from the bottom of the wedge-shaped guide And the width of the entrance of the wedge-shaped notch groove is larger than the thickness of the printed circuit board, and the width of the bottom is formed smaller than the thickness of the printed circuit board so that the first connector is the second connector. Since the printed circuit board is inserted into the wedge-shaped notch groove and fixed while being inserted in the connector, the contact resistance of the connector increases when the instrument is subjected to vibration (slight vibration). We were able to realize a printed board support device without any.
[Brief description of the drawings]
FIG. 1 is a main part configuration diagram showing an example of an embodiment of the present invention.
FIG. 2 is an enlarged view of FIG. 1 viewed from the Z direction.
FIG. 3 is a main part configuration diagram showing an example of a conventional printed board support apparatus.
[Explanation of symbols]
2a Printed circuit board 2b First connector 4a Printed circuit board 4b Second connector 14 Rear panel 14a Wedge-shaped notch groove 14b Bent part
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28829896A JP3690620B2 (en) | 1996-10-30 | 1996-10-30 | Printed circuit board support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28829896A JP3690620B2 (en) | 1996-10-30 | 1996-10-30 | Printed circuit board support device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10135666A JPH10135666A (en) | 1998-05-22 |
| JP3690620B2 true JP3690620B2 (en) | 2005-08-31 |
Family
ID=17728360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28829896A Expired - Fee Related JP3690620B2 (en) | 1996-10-30 | 1996-10-30 | Printed circuit board support device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3690620B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4822064B2 (en) * | 2006-11-01 | 2011-11-24 | 横河電機株式会社 | Circuit board storage device |
| JP5332194B2 (en) * | 2007-12-19 | 2013-11-06 | 株式会社リコー | Electrical board support structure and image forming apparatus |
| JP2014192378A (en) * | 2013-03-27 | 2014-10-06 | Saxa Inc | Support structure of substrate |
| JP6776403B2 (en) * | 2019-05-08 | 2020-10-28 | キヤノン株式会社 | Image forming device |
| CN110289558B (en) * | 2019-07-24 | 2021-08-31 | 国网河北省电力有限公司邢台供电分公司 | Power panel mounting box |
-
1996
- 1996-10-30 JP JP28829896A patent/JP3690620B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10135666A (en) | 1998-05-22 |
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