JPH02257700A - Electrostatic breakdown preventive device - Google Patents
Electrostatic breakdown preventive deviceInfo
- Publication number
- JPH02257700A JPH02257700A JP7925889A JP7925889A JPH02257700A JP H02257700 A JPH02257700 A JP H02257700A JP 7925889 A JP7925889 A JP 7925889A JP 7925889 A JP7925889 A JP 7925889A JP H02257700 A JPH02257700 A JP H02257700A
- Authority
- JP
- Japan
- Prior art keywords
- printed wiring
- pin
- static discharge
- wiring board
- metal
- 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
- 230000015556 catabolic process Effects 0.000 title claims abstract description 4
- 230000003449 preventive effect Effects 0.000 title 1
- 239000002184 metal Substances 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 230000002265 prevention Effects 0.000 claims description 6
- 230000007257 malfunction Effects 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract 5
- 230000005611 electricity Effects 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 239000005041 Mylar™ Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0254—High voltage adaptations; Electrical insulation details; Overvoltage or electrostatic discharge protection ; Arrangements for regulating voltages or for using plural voltages
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
この発明は、静電破壊防止装置に関し、特にプリント配
線基板上の電気および電子部品を、静電気放電による破
壊および誤動作から保護するものに関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an electrostatic discharge prevention device, and particularly to one that protects electrical and electronic components on printed wiring boards from destruction and malfunction caused by electrostatic discharge. be.
操作スイッチなどが挿入部品として付いているプリント
配線基板などでは、意匠部品の隙間から直接静電気放電
が発生することがある。対策として、
（１）個々の電気および電子部品に対して金属成形品を
かぶせるか、囲むかし、それをグランド部に接続する。In printed wiring boards that have operation switches and the like as inserted parts, electrostatic discharge may occur directly from the gaps between the designed parts. As a countermeasure: (1) Cover or surround individual electrical and electronic components with metal moldings, and connect them to the ground.
（２）マイラーシートなどの絶縁物で、個々の電気また
は電子部品、あるいは基板全部を遮蔽する。(2) Shield individual electrical or electronic components, or the entire board, with an insulating material such as Mylar sheet.
（３）静電気放電が予想される箇所から、電気または電
子部品をできるだけ遠ざけて配置する。(3) Place electrical or electronic components as far away as possible from areas where electrostatic discharge is expected.
従来技術の（１）については、金属板が個々の部品の形
状に対応していなければならず、金属板の設置が困難あ
るいは不可能な形状の部品もある。従来技術の（２）に
ついては、機構上の理由でマイラーシートを使用できな
い場合が考えられる。従来技術の（３）は、プリント配
線基板設計の自由度をせばめることになる。Regarding prior art (1), the metal plate must correspond to the shape of each individual component, and there are some components whose shapes make it difficult or impossible to install the metal plate. Regarding the prior art (2), there may be cases where the mylar sheet cannot be used for mechanical reasons. Conventional technology (3) limits the degree of freedom in designing printed wiring boards.
この発明は、かかる問題点を解決するためになされたも
ので、プリント配線基板上の電気および電子部品を静電
気放電による破壊から保護し、またその誤動作を防ぐこ
とのできる静電破壊防止装置を得ることを目的とする。The present invention has been made to solve such problems, and provides an electrostatic damage prevention device that can protect electrical and electronic components on printed wiring boards from destruction due to electrostatic discharge and prevent malfunction thereof. The purpose is to
この発明に係る静電破壊防止装置は、プリント配線基板
上の静電気放電が予想される部分に立てられた金属製ピ
ンと、該ピンとグランド部を接続する導体とをもつもの
である。The electrostatic breakdown prevention device according to the present invention has a metal pin erected at a portion of a printed wiring board where electrostatic discharge is expected, and a conductor connecting the pin to a ground portion.
この発明においては、静電気放電が金属製ピンに発生し
、電流はグランド部に導かれる。このことでピン周辺の
電気および電子部品の金属部分に静電気放電することを
防ぐことができる゛。In this invention, an electrostatic discharge is generated on the metal pin and current is directed to ground. This prevents electrostatic discharge to the metal parts of electrical and electronic components around the pins.
〔実施例］
図面は、この発明の一実施例による静電破壊防止装置を
示す図である。[Embodiment] The drawings are diagrams showing an electrostatic damage prevention device according to an embodiment of the present invention.
図において、１はプリント配線基板、２はプリント配線
基板１に立てられた先端が尖鋭な金属製ピン、３は金属
製ピン２とグランド部を結ぶ導体であるリード線、４は
リード線３をグランド部に取り付けるネジ、５は合成樹
脂製の操作パネル、６は動作状態表示窓で、透明の合成
樹脂がはまっており、プリント配線基板１上の発光ダイ
オードなどの点灯、消灯の表示を行なう。７は電気およ
び電子部品、８はプリント配線基板１を操作パネル５に
取り付けるためのネジ、９は金属製ピン２とリード線３
を結ぶプリント配線である。In the figure, 1 is a printed wiring board, 2 is a metal pin with a sharp tip set on the printed wiring board 1, 3 is a lead wire that is a conductor connecting the metal pin 2 and the ground, and 4 is a lead wire 3. A screw is attached to the ground part, 5 is an operation panel made of synthetic resin, and 6 is an operation status display window, which is filled with transparent synthetic resin and displays whether the light emitting diode on the printed wiring board 1 is on or off. 7 is an electrical and electronic component; 8 is a screw for attaching the printed wiring board 1 to the operation panel 5; 9 is a metal pin 2 and a lead wire 3.
This is printed wiring that connects the
本装置においては、動作状態表示窓６のわずかな隙間へ
の静電気放電が発生した場合にも、プリント配線基板１
上の電気および電子部品７には放電がなされず、金属製
ピン２に放電され、リード線３を伝ってグランド部に電
流が流れる。したがって、静電気放電によって電気およ
び電子部品７が破壊されることはなく、基板上の回路に
も放電電流が流れないので、回路が誤動作することはな
い。In this device, even if electrostatic discharge occurs in the slight gap between the operating status display window 6, the printed wiring board
No discharge occurs to the upper electrical and electronic components 7, but rather to the metal pin 2, and a current flows through the lead wire 3 to the ground section. Therefore, the electrical and electronic components 7 will not be destroyed by electrostatic discharge, and no discharge current will flow through the circuits on the board, so the circuits will not malfunction.
この発明は以上に説明したとおり、金属製ピンをプリン
ト配線基板に立てるように構成したので、静電気放電の
予想される任意の場所の電気および電子部品を保護する
ことができるという効果がある。As described above, the present invention is configured such that the metal pins are erected on the printed wiring board, so that it is effective in protecting electrical and electronic components in any location where electrostatic discharge is expected.
図面はこの発明の一実施例による静電破壊防止装置を示
す図である。
図において、■はプリント配線基板、２は金属製ピン、
３はリード線（導体）、４はネジ、５は合成樹脂製の操
作パネル、６は動作状態表示窓、７は電気および電子部
品、８はネジ、９はプリント配線である。The drawing is a diagram showing an electrostatic damage prevention device according to an embodiment of the present invention. In the figure, ■ is a printed wiring board, 2 is a metal pin,
3 is a lead wire (conductor), 4 is a screw, 5 is a synthetic resin operation panel, 6 is an operating status display window, 7 is an electrical and electronic component, 8 is a screw, and 9 is a printed wiring.
Claims (1)
属製のピンと、 該金属製ピンをグランド部と電気的に接続する導体とを
備えたことを特徴とする静電破壊防止装置。(1) An electrostatic breakdown prevention device characterized by comprising a metal pin with a sharp tip set up on a printed wiring board, and a conductor that electrically connects the metal pin to a ground section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7925889A JPH02257700A (en) | 1989-03-29 | 1989-03-29 | Electrostatic breakdown preventive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7925889A JPH02257700A (en) | 1989-03-29 | 1989-03-29 | Electrostatic breakdown preventive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02257700A true JPH02257700A (en) | 1990-10-18 |
Family
ID=13684832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7925889A Pending JPH02257700A (en) | 1989-03-29 | 1989-03-29 | Electrostatic breakdown preventive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02257700A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1711043A1 (en) * | 2005-04-07 | 2006-10-11 | Delphi Technologies, Inc. | Apparatus having a display |
| CN1298201C (en) * | 2003-02-14 | 2007-01-31 | 盛群半导体股份有限公司 | Electrostatic protection structure on circuit board and method thereof |
-
1989
- 1989-03-29 JP JP7925889A patent/JPH02257700A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298201C (en) * | 2003-02-14 | 2007-01-31 | 盛群半导体股份有限公司 | Electrostatic protection structure on circuit board and method thereof |
| EP1711043A1 (en) * | 2005-04-07 | 2006-10-11 | Delphi Technologies, Inc. | Apparatus having a display |
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