JPH0480599B2 - - Google Patents
Info
- Publication number
- JPH0480599B2 JPH0480599B2 JP59050681A JP5068184A JPH0480599B2 JP H0480599 B2 JPH0480599 B2 JP H0480599B2 JP 59050681 A JP59050681 A JP 59050681A JP 5068184 A JP5068184 A JP 5068184A JP H0480599 B2 JPH0480599 B2 JP H0480599B2
- Authority
- JP
- Japan
- Prior art keywords
- casing
- opening
- housing
- opening gasket
- gasket
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Casings For Electric Apparatus (AREA)
Description
【発明の詳細な説明】
〔技術分野〕
本発明は、例えば超音波センサー等の電気機器
の防水構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a waterproof structure for electrical equipment such as an ultrasonic sensor.
従来は、パツキンとブツシングとが別々に構成
されており、防水性能上夫々に工夫を要した。又
部品点数も多いためにコストアツプの要因にもな
つていた。
Conventionally, the packing and the bushing were constructed separately, and each required some ingenuity in terms of waterproof performance. Furthermore, the large number of parts also caused an increase in costs.
〔発明の目的〕
本発明は叙上の従来例の欠点に鑑みてなされた
ものであり、その目的とするところはパツキンと
ブツシングを一体化して部品点数を少なくすると
共に防水性能の向上を図ることにある。[Object of the Invention] The present invention has been made in view of the drawbacks of the conventional examples described above, and its purpose is to reduce the number of parts by integrating the packing and bushing, and to improve waterproof performance. It is in.
本発明は電気機器の防水構造は、筐体１の開口
部２を開口用パツキン１４を介して被蓋し、この
開口用パツキン１４にブツシング２１を一体成形
し、筐体１内部の電気部品３のリード線２２をこ
のブツシング２１に通して取出す電気機器の防水
構造であつて、第１筐体８と第２筐体９とを重合
して筐体１を形成し、第１筐体８と第２筐体９と
開口用パツキン１４とをコ字状の固定金具１５で
一体的に組立て、この固定金具１５に押圧された
開口用パツキン１４の膨張部分が逃がすためのス
リツト２０を形成したものであり、これによつて
上記目的を達成できるに至つた。
The present invention provides a waterproof structure for electrical equipment by covering the opening 2 of the casing 1 via an opening packing 14, integrally molding a bushing 21 on the opening packing 14, and covering the electrical parts 3 inside the casing 1. This is a waterproof structure for an electrical device in which a lead wire 22 is passed through the bushing 21 to be taken out. The second housing 9 and the opening gasket 14 are integrally assembled using a U-shaped fixing fitting 15, and a slit 20 is formed through which the expanded portion of the opening gasket 14 pressed by the fixing metal fitting 15 escapes. This made it possible to achieve the above objective.
以下、本発明の実施例を添付図により詳述す
る。尚、電気機器として超音波センサーＡを例に
とつて説明するが、他の電気機器にも実施できる
のはもちろんである。 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Although the description will be given using the ultrasonic sensor A as an example of an electric device, it goes without saying that the present invention can also be applied to other electric devices.
超音波センサーＡは、第４図に示すように、長
軸方向が縦になつた長円形の開口部５を有するホ
ーン４と、ホーン４基部に設けた第１筐体８と第
２筐体９とを備えており、第１筐体８と第２筐体
９とによつて筐体１が構成され、第１筐体８内に
は防振ゴムキヤツプ１０を介してマイクロフオン
１１が収納されており、第２筐体９内には電気部
品３としてアンプ回路部品を取着したプリント基
板１２が納められている。又、第１図及び第２図
に示すように、第２筐体９内にはシリコン充填剤
１３を充填してあり、これによつてプリント基板
１２をモールドし、アンプ回路部品の防水と、シ
リコン充填剤１３の弾性によつて防振を図り、残
響を小さくしてある。又、第１筐体８内において
は、マイクロフオン１１は防振ゴムキヤツプ１０
によつてカバーされ、音響的にフローテイングさ
れている。このように第１筐体８内でマイクロフ
オン１１が防振ゴムキヤツプ１０によつてカバー
されているので、防振ゴムキヤツプ１０の耐候性
が増し、劣化の問題がなく、いつまでもフローテ
イング作用が持続するのである。第２筐体９の後
端の開口部２は防水用の開口用パツキン１４で蓋
をされ、その上からコ字状をした固定金具１５で
押えられている。開口用パツキン１４の縁には突
部２７が突設され、ここに固定金具１５の突曲部
２８が嵌合して開口用パツキン１４が位置ずれし
ないようになつている。又、この固定金具１５は
第１筐体８と第２筐体９とを固定するものであ
り、第１筐体８の両側に形成されたリブ１６に固
定金具１５の先の開口１７を嵌合させ、固定金具
１５の先のかしめ片１８を第１筐体８の傾斜リブ
１９にかしめ、これによつて第１筐体８と第２筐
体９とを抱くようにして一体化してある。このと
き、固定金具１５による開口用パツキン１４の押
圧量を一定にするため、第１筐体８の側面に横リ
ブ６を突設し、固定金具１５の端面７が横リブ６
に当たるようにしてある。そして、開口用パツキ
ン１４のたわみ量σは、固定金具１５の長さを
l1、第１筐体８の横リブ６までの長さをl2、第２
筐体９の長さl3、開口用パツキン１４の自由時の
厚さをｔとすると、
σ＝（l2＋l3＋ｔ）−l1
で与えられる。更に、固定金具１５の両側にはス
リツト２０を形成してあり、固定金具１５で第１
筐体８と第２筐体９とを固定した際に、防水用ゴ
ム板１４が押圧され、第２図のように膨張した部
分がスリツト２０から逃げるようにしてある。開
口用パツキン１４にはブツシング２１が一体形成
されており、プリント基板１２からのリード線２
２がブツシング２１に挿通されて外部へ引き出さ
れている。ホーン４の前面の開口部５には角形の
フランジ２３が形成されており、フランジ２３裏
面の短径側の両側には断面Ｌ形のリブ２４が設け
られている。２５は取付ゴム板であり、ホーン４
のフランジ２３に嵌着してリブ嵌合片２６をリブ
２４内に係合してフランジ２３に取着されるよう
になつている。又、取付ゴム板２５の裏面にはテ
ーパが施されていて、下部が厚く、上部が薄くな
つている。 As shown in FIG. 4, the ultrasonic sensor A includes a horn 4 having an oval opening 5 with its long axis vertical, and a first housing 8 and a second housing provided at the base of the horn 4. A housing 1 is constituted by a first housing 8 and a second housing 9, and a microphone 11 is housed in the first housing 8 via a vibration-proof rubber cap 10. A printed circuit board 12 to which an amplifier circuit component is attached as the electrical component 3 is housed within the second casing 9. Further, as shown in FIGS. 1 and 2, the second housing 9 is filled with a silicone filler 13, which molds the printed circuit board 12 and waterproofs the amplifier circuit components. The elasticity of the silicon filler 13 provides vibration isolation and reduces reverberation. Further, inside the first housing 8, the microphone 11 is mounted on a vibration-proof rubber cap 10.
covered and acoustically floating. Since the microphone 11 is covered by the anti-vibration rubber cap 10 in the first housing 8 in this way, the weather resistance of the anti-vibration rubber cap 10 is increased, there is no problem of deterioration, and the floating effect continues indefinitely. It is. The opening 2 at the rear end of the second housing 9 is covered with a waterproof opening gasket 14, and is held down from above by a U-shaped fixing fitting 15. A protrusion 27 is provided on the edge of the opening gasket 14, and a protruding portion 28 of the fixing fitting 15 is fitted into the protrusion 27 to prevent the opening gasket 14 from shifting. The fixing fitting 15 is used to fix the first casing 8 and the second casing 9, and the opening 17 at the end of the fixing fitting 15 is fitted into the ribs 16 formed on both sides of the first casing 8. Then, the caulking piece 18 at the end of the fixing metal fitting 15 is caulked to the inclined rib 19 of the first housing 8, whereby the first housing 8 and the second housing 9 are held together and integrated. . At this time, in order to maintain a constant amount of pressure on the opening gasket 14 by the fixing fitting 15, a horizontal rib 6 is provided protruding from the side surface of the first casing 8, so that the end surface 7 of the fixing fitting 15
It is designed so that it corresponds to The amount of deflection σ of the opening gasket 14 is determined by the length of the fixing fitting 15.
l 1 , the length to the horizontal rib 6 of the first housing 8 is l 2 , the second
When the length of the housing 9 is l 3 and the thickness of the opening gasket 14 when free is t, it is given by σ=(l 2 +l 3 +t)−l 1 . Furthermore, slits 20 are formed on both sides of the fixture 15, and the first
When the housing 8 and the second housing 9 are fixed, the waterproof rubber plate 14 is pressed, and the expanded portion escapes from the slit 20 as shown in FIG. A bushing 21 is integrally formed on the opening gasket 14, and a lead wire 2 from the printed circuit board 12 is connected to the opening gasket 14.
2 is inserted through the bushing 21 and pulled out to the outside. A square flange 23 is formed in the opening 5 on the front surface of the horn 4, and ribs 24 having an L-shaped cross section are provided on both sides of the short diameter side of the back surface of the flange 23. 25 is a mounting rubber plate, and the horn 4
The rib fitting piece 26 is engaged with the rib 24 to be attached to the flange 23. Further, the back surface of the mounting rubber plate 25 is tapered so that the lower part is thicker and the upper part is thinner.
本発明は叙述の如く構成されているから、開口
用パツキンとブツシングが一体となつて部品点数
が少なくなり、又、一体となつているために開口
用パツキンとブツシングとの防水性も確実とな
り、防水性能が向上するという利点があり、かつ
第１筐体と第２筐体とを重合して筐体を形成し、
第１筐体と第２筐体と開口用パツキンとをコ字状
の固定金具で一体的に組立て、この固定金具に押
圧された開口用パツキンの膨張部分を逃がすため
のスリツトを形成してあるから、第１筐体と第２
筐体と開口用パツキンとをコ字状の固定金具で一
体的に組立てて、固定金具による組立てに伴う押
圧力によつて開口用パツキンを開口部縁へ押付け
るのに、開口部縁に押付けられた開口用パツキン
が圧縮されて横に膨れてもその膨張した部分をス
リツトにて逃がすことができ、開口用パツキンを
開口部縁に強力に押付けて防水性を高めることが
できるという利点がある。
Since the present invention is constructed as described above, the opening gasket and the bushing are integrated, reducing the number of parts, and since they are integrated, the waterproofness of the opening gasket and the bushing is ensured. There is an advantage that waterproof performance is improved, and the first casing and the second casing are polymerized to form a casing,
The first housing, the second housing, and the opening gasket are integrally assembled using U-shaped fixing fittings, and a slit is formed to release the expanded portion of the opening gasket pressed by the fixing metal fitting. From the first housing and the second
The housing and the opening gasket are integrally assembled using U-shaped fixing fittings, and the opening gasket is pressed against the edge of the opening by the pressing force accompanying the assembly by the fixing metal. Even if the opening gasket is compressed and expands laterally, the expanded portion can be released through the slit, and the opening gasket has the advantage of being strongly pressed against the edge of the opening to improve waterproofness. .
要するに本考案は、コ字状の固定金具で第１筐
体、第２筐体及び開口用パツキンを組立て、かか
る組立てにおいて開口用パツキンを筐体の開口に
押圧し、かかる場合の開口用パツキンの膨れを固
定金具に形成したスリツトにて逃がし、固定金具
による３者の固定に際して、開口用パツキンの膨
れにより阻害されるのを回避し、かつ開口用パツ
キンが筐体の開口部の縁に強く押圧されるように
する点に発明性を見出だすものである。 In short, the present invention assembles the first casing, the second casing, and the opening gasket using U-shaped fixing metal fittings, presses the opening gasket against the opening of the casing during such assembly, and The bulge is released through the slit formed in the fixing metal fittings, and when the three parts are fixed by the fixing metal fittings, the opening gasket is prevented from being obstructed by the swelling, and the opening gasket is strongly pressed against the edge of the opening of the casing. Inventiveness is found in the point of making it possible.
第１図は本発明の一実施例を示す縦断面図、第
２図は同上の平断面図、第３図は第２図のＸ部拡
大図、第４図は同上の分解斜視図である。
１…筐体、２…開口部、３…電気部品、１４…
開口用パツキン、２１…ブツシング、２２…リー
ド線。
Fig. 1 is a longitudinal sectional view showing an embodiment of the present invention, Fig. 2 is a plan sectional view of the same, Fig. 3 is an enlarged view of the X portion of Fig. 2, and Fig. 4 is an exploded perspective view of the same. . 1... Housing, 2... Opening, 3... Electrical component, 14...
Opening packing, 21...Butting, 22...Lead wire.
Claims (1)
し、この開口用パツキンにブツシングを一体成形
し、筐体内部の電気部品のリード線をこのブツシ
ングに通して取出す電気機器の防水構造であつ
て、第１筐体と第２筐体とを重合して筐体を形成
し、第１筐体と第２筐体と開口用パツキンとをコ
字状の固定金具で一体的に組立て、この固定金具
に押圧された開口用パツキンの膨張部分を逃がす
ためのスリツトを形成して成ることを特徴とする
電気機器の防水構造。 ２ 第１筐体と第２筐体とを重合して筐体を形成
し、コ字状の固定金具によつて第１筐体と第２筐
体とを抱えるようにして組立て、固定金具先端を
筐体の肩部に形成した傾斜リブにかしめて成るこ
とを特徴とする特許請求の範囲第１項記載の電気
機器の防水構造。[Scope of Claims] 1. Covering the opening of the casing via an opening gasket, integrally molding a bushing on the opening gasket, and taking out lead wires of electrical components inside the casing through the bushing. A waterproof structure for electrical equipment, in which a first casing and a second casing are superimposed to form a casing, and the first casing, the second casing, and an opening gasket are connected by a U-shaped fixing metal fitting. A waterproof structure for electrical equipment characterized by forming a slit for releasing an expanded part of an opening gasket pressed by the fixing fitting. 2. Overlap the first casing and the second casing to form a casing, and assemble the first casing and the second casing by holding them with a U-shaped fixing metal fitting, and attach the tip of the fixing metal fitting. 2. A waterproof structure for electrical equipment according to claim 1, wherein the waterproof structure is caulked to an inclined rib formed on a shoulder of a housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5068184A JPS60194698A (en) | 1984-03-15 | 1984-03-15 | Waterproof structure of electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5068184A JPS60194698A (en) | 1984-03-15 | 1984-03-15 | Waterproof structure of electric equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60194698A JPS60194698A (en) | 1985-10-03 |
| JPH0480599B2 true JPH0480599B2 (en) | 1992-12-18 |
Family
ID=12865667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5068184A Granted JPS60194698A (en) | 1984-03-15 | 1984-03-15 | Waterproof structure of electric equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60194698A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0515110Y2 (en) * | 1986-06-20 | 1993-04-21 | ||
| JP2012021782A (en) * | 2010-07-12 | 2012-02-02 | Panasonic Corp | Ultrasonic flow rate measuring unit |
| CN103675798A (en) * | 2013-12-02 | 2014-03-26 | 法雷奥汽车内部控制（深圳）有限公司 | Sealed and waterproof ultrasonic probe |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS511511U (en) * | 1974-06-24 | 1976-01-08 | ||
| JPS5734794U (en) * | 1980-08-01 | 1982-02-24 |
-
1984
- 1984-03-15 JP JP5068184A patent/JPS60194698A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60194698A (en) | 1985-10-03 |
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