JPH11329129A - Electronic circuit unit - Google Patents
Electronic circuit unitInfo
- Publication number
- JPH11329129A JPH11329129A JP10132489A JP13248998A JPH11329129A JP H11329129 A JPH11329129 A JP H11329129A JP 10132489 A JP10132489 A JP 10132489A JP 13248998 A JP13248998 A JP 13248998A JP H11329129 A JPH11329129 A JP H11329129A
- Authority
- JP
- Japan
- Prior art keywords
- case
- circuit board
- synthetic resin
- printed circuit
- electronic component
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/04—Cases; Covers
- H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
Landscapes
- Switch Cases, Indication, And Locking (AREA)
- Push-Button Switches (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Switches (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、プリント基板を収
納したケース内に合成樹脂を充填してなる電子回路ユニ
ットに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic circuit unit in which a case containing a printed circuit board is filled with a synthetic resin.
【０００２】[0002]
【従来の技術】一般に、車両用等に用いるための仕様を
満足するべく耐振性，耐水性の要求される電子回路は、
電子部品が実装され回路が組まれたプリント基板をケー
ス内に収納し、このケース内にエポキシやポリウレタン
等のモールド材としての合成樹脂を充填して電子回路ユ
ニットを構成していた。このような電子回路ユニットに
対し、例えばタクトスイッチ等の押しボタンスイッチ
や、スライド式や回転式の可変抵抗素子からなる可動部
を有する可動式電子部品を設けたいといった要求に対
し、従来の電子回路ユニットにあっては、ケース内に他
の電子部品と同様に可動式電子部品を設けることができ
ないものであった。2. Description of the Related Art In general, electronic circuits that require vibration resistance and water resistance to satisfy specifications for use in vehicles and the like are:
A printed circuit board on which electronic parts are mounted and a circuit is assembled is housed in a case, and the case is filled with a synthetic resin as a molding material such as epoxy or polyurethane to constitute an electronic circuit unit. In response to requests to provide such electronic circuit units with a push button switch such as a tact switch or a movable electronic component having a movable portion composed of a sliding or rotary variable resistance element, a conventional electronic circuit In the unit, a movable electronic component cannot be provided in the case like other electronic components.
【０００３】これは、プリント基板に実装される電子部
品が前述した合成樹脂内に埋没してしまうためであり、
プリント基板に実装される電子部品の中に可動式電子部
品が含まれる場合には外部から操作することができなく
なるためである。This is because electronic components mounted on a printed circuit board are buried in the above-mentioned synthetic resin.
This is because if a movable electronic component is included in the electronic components mounted on the printed circuit board, it cannot be operated from the outside.
【０００４】[0004]
【発明が解決しようとする課題】よって、従来この種の
電子回路ユニットに可動式電子部品を設ける場合には、
防水式の可動式電子部品を用い、更にその可動部となる
操作部が合成樹脂に埋没しないように合成樹脂の充填量
を調整したり、この可動式電子部品のみを他の電子部品
とは異なる位置に設定することが行なわれるものであ
り、製造コストを増加させる要因となっていた。Therefore, when a movable electronic component is conventionally provided in this type of electronic circuit unit,
Use waterproof movable electronic components, and further adjust the filling amount of synthetic resin so that the operation part that becomes the movable part is not buried in the synthetic resin, or only this movable electronic component is different from other electronic components The position is set at the position, which has been a factor of increasing the manufacturing cost.
【０００５】本発明は、ケース内に収納されるプリント
基板に他の電子部品と同様に可動式電子部品を実装した
状態で、ケース内に合成樹脂を充填できるようにし、製
造コストを低減できると共に、耐振性，防水性を確保で
きる電子回路ユニットを提供することを目的としてい
る。According to the present invention, in a state where movable electronic components are mounted on a printed circuit board accommodated in a case like other electronic components, the case can be filled with a synthetic resin, thereby reducing manufacturing costs. It is another object of the present invention to provide an electronic circuit unit that can ensure vibration resistance and waterproofness.
【０００６】[0006]
【課題を解決するための手段】本発明は、可動式電子部
品を実装するプリント基板をケース内に収納し、このケ
ース内に合成樹脂を充填してなる電子回路ユニットであ
って、前記ケースから一体に設けられ前記可動式電子部
品の操作部側に前記合成樹脂が流入することを防止する
筒状の隔壁を前記プリント基板に当接させて設けたもの
である。SUMMARY OF THE INVENTION The present invention is an electronic circuit unit in which a printed circuit board on which movable electronic components are mounted is housed in a case, and the case is filled with a synthetic resin. A cylindrical partition wall provided integrally and preventing the synthetic resin from flowing into the operation section side of the movable electronic component is provided in contact with the printed circuit board.
【０００７】また、前記隔壁と前記プリント基板との間
にパッキン部材を設けたものである。Further, a packing member is provided between the partition and the printed board.
【０００８】また、前記パッキン部材は、前記可動式電
子部品の前記操作部側の開口部に設けられる保護カバー
から一体に形成され、前記隔壁と前記プリント基板との
間で挟着保持されるものである。The packing member is formed integrally with a protective cover provided at an opening of the movable electronic component on the operation portion side, and is held between the partition and the printed circuit board. It is.
【０００９】[0009]
【発明の実施の形態】可動式電子部品を実装するプリン
ト基板をケース内に収納し、前記ケースから一体に設け
られ前記可動式電子部品の操作部側に前記合成樹脂が流
入することを防止する筒状の隔壁を前記プリント基板に
当接させて設けたので、ケース内に合成樹脂を充填する
際にこの隔壁により可動式電子部品の操作部側への合成
樹脂の侵入が防止されることにより、他の電子部品と同
様に可動式電子部品を実装したプリント基板をケース内
に収納した状態での合成樹脂の充填が可能になる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A printed circuit board on which a movable electronic component is mounted is housed in a case, and the synthetic resin is integrally provided from the case to prevent the synthetic resin from flowing into the operation section side of the movable electronic component. Since the cylindrical partition wall is provided in contact with the printed circuit board, when the synthetic resin is filled in the case, the partition wall prevents the synthetic resin from entering the operation unit side of the movable electronic component. As with other electronic components, it becomes possible to fill the printed circuit board on which the movable electronic component is mounted with the synthetic resin in a state of being housed in the case.
【００１０】[0010]
【実施例】以下本発明の実施例を添付図面に基づいて説
明する。図１から図３は本発明の一実施例を示すもので
ある。Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 3 show one embodiment of the present invention.
【００１１】電子回路ユニット１は、図示しない各種電
子部品とともに例えばタクトスイッチ等の押しボタンス
イッチや、スライド式や回転式の可変抵抗素子からなる
これらの可動部を有する可動式電子部品２を実装して所
要の電子回路を構成したプリント基板３を形成し、この
プリント基板３をケース４に収納するものである。The electronic circuit unit 1 is mounted with various electronic parts (not shown), a push button switch such as a tact switch, and a movable electronic part 2 having these movable parts made of a sliding or rotating variable resistance element. Thus, a printed circuit board 3 constituting a required electronic circuit is formed, and the printed circuit board 3 is housed in a case 4.
【００１２】このケース４は一側を開放部５とし、プリ
ント基板３は、この開放部５とは反対側のケース５の内
面側に設けられたボス部６に対しビス７によって締め付
け固定されるものである。このときプリント基板３は、
可動式電子部品２の操作部８をこのケース５の内面側に
向けて組み付けられる。The case 4 has an open portion 5 on one side, and the printed circuit board 3 is fastened and fixed to a boss 6 provided on the inner surface of the case 5 on the opposite side of the open portion 5 by screws 7. Things. At this time, the printed circuit board 3
The operation unit 8 of the movable electronic component 2 is assembled so as to face the inner surface of the case 5.
【００１３】そして本発明にあっては、可動式電子部品
２の操作部８に対応して操作部８を外方から操作可能な
開口部９をケース４に設け、開口部９には可動式電子部
品２操作部８側に向かって合成樹脂Ｍが流入することを
防止する筒状の隔壁１０を前記ケース４から一体に設け
ている。この隔壁１０は、ケース４の開口部９からケー
ス４内部に向けて形成されるとともに可動式電子部品２
の全周を囲むように可動式電子部品２から所定間隔を空
けて筒状に形成され、パッキン部材１１を介してプリン
ト基板３と当接状態に設けられるものである。According to the present invention, the case 4 is provided with an opening 9 in which the operation unit 8 can be operated from the outside corresponding to the operation unit 8 of the movable electronic component 2. A cylindrical partition 10 for preventing the synthetic resin M from flowing toward the operation part 8 of the electronic component 2 is provided integrally with the case 4. The partition 10 is formed from the opening 9 of the case 4 toward the inside of the case 4 and is movable.
Is formed in a cylindrical shape at a predetermined interval from the movable electronic component 2 so as to surround the entire periphery of the printed circuit board 3, and is provided in contact with the printed circuit board 3 via the packing member 11.
【００１４】このパッキン部材１１は、ゴム等の弾性部
材からなり、ケース４の開口部９に設けられ可動式電子
部品２の操作部８への水滴やゴミの侵入を防ぐ目的で設
けられる保護カバー１２から一体に設けられている。The packing member 11 is made of an elastic member such as rubber, and is provided at the opening 9 of the case 4 and is provided for the purpose of preventing water droplets and dust from entering the operating portion 8 of the movable electronic component 2. 12 are provided integrally.
【００１５】例えば可動式電子部品２がタクトスイッチ
２Ａ等の押しボタンスイッチからなる場合には、その上
部は、キートップ部１３として構成されると共に、その
下方には、タクトスイッチ２Ａの操作部８を押圧する押
圧部１４と、この押圧部１４の周囲には、押圧されたキ
ートップ部１３を自己弾性力により復帰可能に設けた復
帰弾性部１５と、この復帰弾性部１５の基端部に設けら
れケース４の開口部９と嵌め合わされて保護カバー１２
を固定する固定部１６とが一体に設けられ、更に前述し
たパッキン部材１１をこの保護カバー１２と一体に形成
している。For example, when the movable electronic component 2 is composed of a push button switch such as a tact switch 2A, the upper portion thereof is configured as a key top portion 13 and the operation portion 8 of the tact switch 2A is arranged below the key top portion 13. And a return elastic portion 15 provided around the press portion 14 so as to be able to return the pressed key top portion 13 by its own elastic force. The protective cover 12 is provided and fitted with the opening 9 of the case 4.
Is fixedly provided with the fixing portion 16, and the above-described packing member 11 is formed integrally with the protective cover 12.
【００１６】この保護カバー１２から一体に形成される
パッキン部材１１は、前記筒状に形成された隔壁１０の
内面に沿って形成される筒状の延長部１７の下端部に設
けられ、隔壁１０の下端部の全周を覆った状態で前記隔
壁１０とプリント基板３との間で挟着保持されることに
より、合成樹脂Ｍがケース４内に充填された時に、隔壁
１０とプリント基板３との間の隙間を密封することで、
合成樹脂Ｍが可動式電子部品２であるタクトスイッチ２
Ａの操作部８側へ侵入することを良好に防止し、可動式
電子部品２の操作部８周囲に合成樹脂Ｍの侵入しない空
間を形成することができ、操作部８の押圧動作に支障が
無いようにしたものである。A packing member 11 integrally formed from the protective cover 12 is provided at the lower end of a cylindrical extension 17 formed along the inner surface of the cylindrical partition 10 and is provided with a partition 10. When the synthetic resin M is filled in the case 4 by being sandwiched and held between the partition 10 and the printed board 3 while covering the entire periphery of the lower end of the partition 10, the partition 10 and the printed board 3 By sealing the gap between
Tact switch 2 in which synthetic resin M is movable electronic component 2
A can be properly prevented from entering the operation unit 8 side, and a space can be formed around the operation unit 8 of the movable electronic component 2 where the synthetic resin M does not enter, so that the pressing operation of the operation unit 8 is hindered. It is made so that there is no.
【００１７】また、例えば可動式電子部品２が回転式の
切替スイッチ２Ｂからなる場合には、その上部は、前記
切替スイッチの操作部８であるシャフト８に密着してシ
ャフト８を伝って水滴が侵入することを防止するシール
部１８と、このシール部１８の基端部に設けられケース
４の開口部９と嵌め合わされて保護カバー１２を固定す
る固定部１６とが一体に設けられ、更に前述したパッキ
ン部材１１をこの保護カバー１２と一体に形成してい
る。この場合にあっても同様に、パッキン部材１１は、
前記筒状に形成された隔壁１０の内面に沿って形成され
る筒状の延長部１７の下端部に設けられ、隔壁１０の下
端部の全周を覆った状態で前記隔壁１０とプリント基板
３との間で挟着保持されることにより、合成樹脂Ｍがケ
ース４内に充填された時に、隔壁１０とプリント基板３
との間の隙間を密封することで、合成樹脂Ｍが可動式電
子部品２である切替スイッチ２Ｂの操作部８側へ侵入す
ることを良好に防止し、可動式電子部品の２操作部８周
囲に合成樹脂Ｍの侵入しない空間を形成することがで
き、操作部８の回転動作に支障が無いようにしたもので
ある。When the movable electronic component 2 is composed of a rotary changeover switch 2B, for example, the upper part thereof is in close contact with the shaft 8, which is the operation portion 8 of the changeover switch, and water drops are transmitted along the shaft 8. A seal portion 18 for preventing intrusion and a fixing portion 16 provided at a base end portion of the seal portion 18 and fitted to the opening 9 of the case 4 to fix the protective cover 12 are integrally provided. The formed packing member 11 is formed integrally with the protective cover 12. Even in this case, similarly, the packing member 11
The partition 10 and the printed circuit board 3 are provided at the lower end of a cylindrical extension 17 formed along the inner surface of the cylindrical partition 10 and cover the entire periphery of the lower end of the partition 10. Between the partition 10 and the printed circuit board 3 when the synthetic resin M is filled in the case 4.
To prevent the synthetic resin M from entering the operation section 8 side of the changeover switch 2B, which is the movable electronic component 2, in a favorable manner, and around the 2 operation section 8 of the movable electronic component. A space in which the synthetic resin M does not enter can be formed so that the rotation of the operation unit 8 is not hindered.
【００１８】つまり、ケース４の開放部５側からこの開
放部５を上方に設置した状態で液体状の合成樹脂Ｍが充
填されるものであるが、ケース４内に充填される合成樹
脂Ｍは、隔壁１０とプリント基板３との間で堰き止めら
れて可動式電子部品２の実装される操作部８側へ流入す
ることはないため、可動式電子部品２を他の電子部品と
同様に実装したプリント基板３をケース４内に収容した
状態で合成樹脂Ｍを充填した電子回路ユニット１を構成
することができる。That is, the synthetic resin M in a liquid state is filled in a state where the open portion 5 is installed upward from the open portion 5 side of the case 4. Is not blocked between the partition wall 10 and the printed circuit board 3 and flows into the operation unit 8 side on which the movable electronic component 2 is mounted, so that the movable electronic component 2 is mounted similarly to other electronic components. The electronic circuit unit 1 filled with the synthetic resin M in a state where the printed circuit board 3 thus obtained is accommodated in the case 4 can be configured.
【００１９】このため、可動式電子部品を防水性とする
必要もなく、安価な可動式電子部品を採用できるという
効果もある。Therefore, there is no need to make the movable electronic parts waterproof, and there is an effect that inexpensive movable electronic parts can be adopted.
【００２０】なお、隔壁１０は、１つの可動式電子部品
に対して１つの隔壁を設けるものであってもよいし、複
数の可動式電子部品に対して１つの隔壁を設けるもので
あってもよい。The partition 10 may be provided with one partition for one movable electronic component, or may be provided with one partition for a plurality of movable electronic components. Good.
【００２１】また、隔壁とプリント基板との間に保護カ
バーとは別に個別のパッキン部材を設けて構成してもよ
い。Further, a separate packing member may be provided between the partition and the printed circuit board separately from the protective cover.
【００２２】[0022]
【発明の効果】以上本発明によれば、ケース内に収納さ
れるプリント基板に他の電子部品と同様に可動式電子部
品を実装した状態で、ケース内に合成樹脂を充填できる
ようにし、製造コストを低減できると共に、耐振性，防
水性を確保できる電子回路ユニットを提供することがで
きる。As described above, according to the present invention, it is possible to fill a case with a synthetic resin in a state in which a movable electronic component is mounted on a printed circuit board accommodated in the case in the same manner as other electronic components. It is possible to provide an electronic circuit unit capable of reducing costs and securing vibration resistance and waterproofness.
【図１】本発明の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】本発明の一実施例を示す断面図である。FIG. 2 is a sectional view showing one embodiment of the present invention.
【図３】本発明の一実施例を示す断面図である。FIG. 3 is a sectional view showing one embodiment of the present invention.
１ 電子回路ユニット ２ 可動式電子部品 ３ プリント基板 ４ ケース ８ 操作部 ９ 開口部 １０ 隔壁 １１ パッキン部材 １２ 保護カバー Ｍ 合成樹脂 DESCRIPTION OF SYMBOLS 1 Electronic circuit unit 2 Movable electronic component 3 Printed circuit board 4 Case 8 Operation part 9 Opening 10 Partition wall 11 Packing member 12 Protective cover M Synthetic resin
Claims (3)
をケース内に収納し、このケース内に合成樹脂を充填し
てなる電子回路ユニットであって、前記ケースから一体
に設けられ前記可動式電子部品の操作部側に前記合成樹
脂が流入することを防止する筒状の隔壁を前記プリント
基板に当接させて設けたことを特徴とする電子回路ユニ
ット。1. An electronic circuit unit comprising a printed circuit board on which a movable electronic component is mounted and housed in a case, and the case is filled with a synthetic resin, wherein the electronic circuit unit is provided integrally with the case. An electronic circuit unit, wherein a cylindrical partition wall for preventing the synthetic resin from flowing into the operation section side of the component is provided in contact with the printed circuit board.
ッキン部材を設けたことを特徴とする請求項１に記載の
電子回路ユニット。2. The electronic circuit unit according to claim 1, wherein a packing member is provided between the partition and the printed board.
品の前記操作部側の開口部に設けられる保護カバーから
一体に形成され、前記隔壁と前記プリント基板との間で
挟着保持されることを特徴とする請求項２に記載の電子
回路ユニット。3. The packing member is formed integrally with a protective cover provided at an opening of the movable electronic component on the operation unit side, and is sandwiched and held between the partition wall and the printed circuit board. The electronic circuit unit according to claim 2, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10132489A JPH11329129A (en) | 1998-05-15 | 1998-05-15 | Electronic circuit unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10132489A JPH11329129A (en) | 1998-05-15 | 1998-05-15 | Electronic circuit unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11329129A true JPH11329129A (en) | 1999-11-30 |
Family
ID=15082578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10132489A Pending JPH11329129A (en) | 1998-05-15 | 1998-05-15 | Electronic circuit unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11329129A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364804C (en) * | 2002-12-26 | 2008-01-30 | 于耀庆 | Electromechanical integral power unit of electric vehicle |
| JP2008226469A (en) * | 2007-03-08 | 2008-09-25 | Nippon Seiki Co Ltd | Press operating device |
| JP2010153303A (en) * | 2008-12-26 | 2010-07-08 | Panasonic Corp | Vehicle switch |
| JP2012128123A (en) * | 2010-12-14 | 2012-07-05 | Yamaha Corp | Switch structure, electronic component installation structure, and electronic musical instrument with the same |
| JP2012178725A (en) * | 2011-02-25 | 2012-09-13 | Fujitsu Ltd | Electronic apparatus |
-
1998
- 1998-05-15 JP JP10132489A patent/JPH11329129A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364804C (en) * | 2002-12-26 | 2008-01-30 | 于耀庆 | Electromechanical integral power unit of electric vehicle |
| JP2008226469A (en) * | 2007-03-08 | 2008-09-25 | Nippon Seiki Co Ltd | Press operating device |
| JP2010153303A (en) * | 2008-12-26 | 2010-07-08 | Panasonic Corp | Vehicle switch |
| JP2012128123A (en) * | 2010-12-14 | 2012-07-05 | Yamaha Corp | Switch structure, electronic component installation structure, and electronic musical instrument with the same |
| JP2012178725A (en) * | 2011-02-25 | 2012-09-13 | Fujitsu Ltd | Electronic apparatus |
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