JPS6110198Y2 - - Google Patents
Info
- Publication number
- JPS6110198Y2 JPS6110198Y2 JP17215681U JP17215681U JPS6110198Y2 JP S6110198 Y2 JPS6110198 Y2 JP S6110198Y2 JP 17215681 U JP17215681 U JP 17215681U JP 17215681 U JP17215681 U JP 17215681U JP S6110198 Y2 JPS6110198 Y2 JP S6110198Y2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- piezoelectric cable
- rubber
- metal rod
- cable
- 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
Links
- 239000002184 metal Substances 0.000 claims description 16
- 229920001971 elastomer Polymers 0.000 claims description 14
- 239000005060 rubber Substances 0.000 claims description 14
- 239000012212 insulator Substances 0.000 claims description 10
- 229920003051 synthetic elastomer Polymers 0.000 claims description 9
- 239000005061 synthetic rubber Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 description 20
- 239000000945 filler Substances 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 238000009429 electrical wiring Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
- Cable Accessories (AREA)
Description
【考案の詳細な説明】
本考案は、絶縁油中で使用される圧電ケーブル
の端末において、圧電ケーブル内部に絶縁油の浸
入を防ぐ構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure that prevents insulating oil from penetrating into the piezoelectric cable at the terminal of the piezoelectric cable used in insulating oil.
従来の絶縁油中で使用される圧電ケーブルの端
末処理構造の軸方向の断面を第１図に、その圧電
ケーブルの半径方向の断面を第２図に示す。これ
らの図において、Ａは圧電ケーブル、１はその中
心導体、２は圧電ゴム、３は外部導体、４は圧電
ケーブルの外被である。この圧電ケーブルＡは、
外部の絶縁油８を介して圧力が加わると、中心導
体１と外部導体３との間に電位差が発生するもの
である。５ａ，５ｂは各々圧電ケーブルＡの中心
導体１、外部導体３に接続されるリード線、６は
圧電ケーブルＡの外被４とリード線５ａ，５ｂを
被覆するためのスリーブ、７はエポキシ樹脂等の
充填剤である。 FIG. 1 shows an axial cross section of a conventional piezoelectric cable termination structure used in insulating oil, and FIG. 2 shows a radial cross section of the piezoelectric cable. In these figures, A is the piezoelectric cable, 1 is its center conductor, 2 is the piezoelectric rubber, 3 is the outer conductor, and 4 is the outer sheath of the piezoelectric cable. This piezoelectric cable A is
When pressure is applied via the external insulating oil 8, a potential difference is generated between the center conductor 1 and the outer conductor 3. 5a and 5b are lead wires connected to the center conductor 1 and outer conductor 3 of the piezoelectric cable A, respectively; 6 is a sleeve for covering the outer sheath 4 of the piezoelectric cable A and the lead wires 5a and 5b; 7 is an epoxy resin, etc. It is a filler.
この第１図の従来構造の場合、充填剤７の選定
がむずかしいと同時に、高温又は低温時に収縮率
の違いによつて、充填剤７とリード線５ａ，５ｂ
との接着部で剥離が生じ、絶縁油８が中心導体１
と圧電ゴム２との隙間９又は外部導体３と圧電ゴ
ム２との隙間１０に浸入し、中心導体１と圧電ゴ
ム２又は外部導体３と圧電ゴム２との間で接触不
良が発生し、圧電ケーブルとしての性能が損われ
る欠点があつた。 In the case of the conventional structure shown in FIG. 1, it is difficult to select the filler 7, and at the same time, due to the difference in shrinkage rate at high or low temperatures, the filler 7 and the lead wires 5a, 5b
Peeling occurs at the adhesive part between the center conductor 1 and the insulating oil 8.
and the piezoelectric rubber 2, or the gap 10 between the outer conductor 3 and the piezoelectric rubber 2, and a contact failure occurs between the center conductor 1 and the piezoelectric rubber 2 or between the outer conductor 3 and the piezoelectric rubber 2, and the piezoelectric There was a drawback that the performance as a cable was impaired.
本考案の目的は、上記欠点を除去するために、
一部に合成ゴムを接着した金属棒を中継端子とし
て用い、該金属棒を圧電ケーブルの圧電ゴム又は
外被と共に耐油性の優れた絶縁体でモールドする
ことにより、圧電ケーブル内への絶縁油の浸入を
防止した圧電ケーブル端末の防油構造を提供する
ことにある。 The purpose of the present invention is to eliminate the above drawbacks.
By using a metal rod with synthetic rubber glued on a part as a relay terminal and molding the metal rod with an insulator with excellent oil resistance together with the piezoelectric rubber or outer sheath of the piezoelectric cable, it is possible to prevent insulating oil from entering the piezoelectric cable. An object of the present invention is to provide an oil-proof structure for a piezoelectric cable terminal that prevents infiltration.
以下、本考案に係る圧電ケーブル端末の防油構
造の実施例を図面に従つて説明する。 Hereinafter, embodiments of the oil-proof structure of the piezoelectric cable terminal according to the present invention will be described with reference to the drawings.
第３図は本考案の第１実施例であつて、１１は
例えば黄銅のような導電性の良い金属棒であり、
はんだ付がやり易いように両端部は一部細くなつ
ており、外周の少なくとも一部を環状に覆うよう
に例えばクロロプレンゴム等の合成ゴム１２が加
硫接着されている。この金属棒１１は中継端子と
して働き、各々の金属棒１１の一端が圧電ケーブ
ルＡの中心導体１及び外部導体３とはんだ付にて
電気的に接続された後、圧電ケーブル外被４及び
合成ゴム１２と接着性が良好で耐油性に優れた例
えばポリウレタンゴム等の絶縁体１３で前記外被
と共にモールドされる。ただし、各々の金属棒１
１の他端は絶縁体１３より突出しており、これら
の突出した端部にリード線５ａ，５ｂを夫々接続
することによつて外部への電気的な配線が行われ
る。 FIG. 3 shows a first embodiment of the present invention, in which 11 is a metal rod with good conductivity, such as brass,
Both ends are partially tapered to facilitate soldering, and a synthetic rubber 12 such as chloroprene rubber is vulcanized and bonded to cover at least a portion of the outer periphery in an annular shape. This metal rod 11 functions as a relay terminal, and after one end of each metal rod 11 is electrically connected to the center conductor 1 and outer conductor 3 of the piezoelectric cable A by soldering, the piezoelectric cable jacket 4 and the synthetic rubber 12 and an insulator 13 having good adhesion and excellent oil resistance, such as polyurethane rubber, is molded together with the outer cover. However, each metal rod 1
The other end of the insulator 1 protrudes from the insulator 13, and electrical wiring to the outside is performed by connecting lead wires 5a and 5b to these protruding ends, respectively.
以上説明したように、上記第１実施例では、絶
縁体１３が圧電ケーブルの外被４及び金属棒１１
の合成ゴム１２とに接着されており、かつ合成ゴ
ム１２は金属棒１１に加硫接着されているため
に、接着部が高温又は低温時での過酷な条件でも
剥離することがなく、圧電ケーブルの中心導体１
と圧電ゴム２との隙間９又は外部導体３と圧電ゴ
ム２との隙間１０の部分に絶縁油８が浸入するこ
とがない。従つて、圧電ケーブルＡとしての性能
が損われることがない。 As explained above, in the first embodiment, the insulator 13 is connected to the outer sheath 4 of the piezoelectric cable and the metal rod 11.
Since the synthetic rubber 12 is vulcanized and bonded to the metal rod 11, the bonded part will not peel off even under harsh conditions at high or low temperatures, and the piezoelectric cable center conductor 1 of
The insulating oil 8 does not enter into the gap 9 between the external conductor 3 and the piezoelectric rubber 2 or the gap 10 between the external conductor 3 and the piezoelectric rubber 2. Therefore, the performance of the piezoelectric cable A is not impaired.
なお、第１実施例では圧電ケーブルの外被４の
ある場合の防油構造を説明したが、圧電ケーブル
が外被を有しない場合を第４図に第２実施例とし
て示す。この第４図においても合成ゴム１２を外
周に加硫接着した金属棒１１を中継端子として用
い、外被を有しない圧電ケーブルA′の中心導体
１にその金属棒１１の一端をはんだ付した後、圧
電ゴム２及び合成ゴム１２と接着性が良好で耐油
性に優れた絶縁体１３で前記金属棒１１を圧電ゴ
ム２と共にモールドする。また、バンド１４によ
り、圧電ケーブル端部の外部導体３を圧電ゴム２
に圧接する。なお、外部への電気的な配線は、リ
ード線５ｂを金属棒１１の他端に接続し、リード
線５ｃを外部導体３に直接接続し、この接続部に
チユーブ１５を被せることによつて行う。この場
合にも、絶縁体１３及びバンド１４により隙間９
又は１０の部分に絶縁油８が浸入するのを防止す
ることができる。 In the first embodiment, the oil-proof structure in which the piezoelectric cable has a jacket 4 has been described, but FIG. 4 shows a second embodiment in which the piezoelectric cable does not have a jacket. In FIG. 4 as well, a metal rod 11 with synthetic rubber 12 vulcanized and bonded on the outer periphery is used as a relay terminal, and one end of the metal rod 11 is soldered to the center conductor 1 of the piezoelectric cable A' which does not have an outer jacket. The metal rod 11 is molded together with the piezoelectric rubber 2 using an insulator 13 that has good adhesion to the piezoelectric rubber 2 and the synthetic rubber 12 and has excellent oil resistance. In addition, the band 14 connects the outer conductor 3 at the end of the piezoelectric cable to the piezoelectric rubber 2.
press against. Note that electrical wiring to the outside is performed by connecting the lead wire 5b to the other end of the metal rod 11, connecting the lead wire 5c directly to the external conductor 3, and covering this connection with the tube 15. . In this case as well, the gap 9 is formed by the insulator 13 and the band 14.
Alternatively, it is possible to prevent the insulating oil 8 from penetrating into the portion 10.
以上説明したように、本考案によれば、一部に
合成ゴムを接着した金属棒が圧電ケーブルの圧電
ゴム又は外被と共に耐油性の優れた絶縁体でモー
ルドされているため、接着面が剥離することがな
く、圧電ケーブル内の隙間に絶縁油が浸入するの
を防止する効果がある。 As explained above, according to the present invention, the metal rod to which synthetic rubber is partially bonded is molded with an insulator with excellent oil resistance together with the piezoelectric rubber or outer sheath of the piezoelectric cable, so that the bonded surface does not peel off. This has the effect of preventing insulating oil from entering the gaps within the piezoelectric cable.
第１図は従来の絶縁油中で使用される圧電ケー
ブルの端末処理構造の軸方向の断面図、第２図は
該圧電ケーブルの半径方向の断面図、第３図は本
考案に係る圧電ケーブル端未の防油構造の第１実
施例を示す断面図、第４図は本考案の第２実施例
を示す断面図である。
Ａ，A′……圧電ケーブル、１……中心導体、
２……圧電ゴム、３……外部導体、４……外被、
５ａ，５ｂ，５ｃ……リード線、６……スリー
ブ、７……充填剤、８……絶縁油、９，１０……
隙間、１１……金属棒、１２……合成ゴム、１３
……絶縁体、１４……バンド、１５……チユー
ブ。
FIG. 1 is an axial cross-sectional view of a conventional piezoelectric cable terminal treatment structure used in insulating oil, FIG. 2 is a radial cross-sectional view of the piezoelectric cable, and FIG. 3 is a piezoelectric cable according to the present invention. FIG. 4 is a cross-sectional view showing a first embodiment of the oil-proof structure of the present invention, and FIG. 4 is a cross-sectional view showing a second embodiment of the present invention. A, A'...Piezoelectric cable, 1...Center conductor,
2...Piezoelectric rubber, 3...Outer conductor, 4...Outer cover,
5a, 5b, 5c... Lead wire, 6... Sleeve, 7... Filler, 8... Insulating oil, 9, 10...
Gap, 11...Metal rod, 12...Synthetic rubber, 13
...Insulator, 14...Band, 15...Tube.
Claims (1)
いて、一部に合成ゴムを接着した金属棒を中継端
子として用い、一端を露出させて該金属棒を前記
圧電ケーブルの圧電ゴム又は外被と共に耐油性の
優れた絶縁体でモールドしたことを特徴とする圧
電ケーブル端末の防油構造。 At the terminal of a piezoelectric cable used in insulating oil, a metal rod with synthetic rubber glued to a part is used as a relay terminal, and one end is exposed to make the metal rod oil-resistant together with the piezoelectric rubber or outer sheath of the piezoelectric cable. The oil-proof structure of the piezoelectric cable terminal is characterized by being molded with an excellent insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17215681U JPS5877441U (en) | 1981-11-20 | 1981-11-20 | Oil-proof structure of piezoelectric cable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17215681U JPS5877441U (en) | 1981-11-20 | 1981-11-20 | Oil-proof structure of piezoelectric cable terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5877441U JPS5877441U (en) | 1983-05-25 |
| JPS6110198Y2 true JPS6110198Y2 (en) | 1986-04-02 |
Family
ID=29964061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17215681U Granted JPS5877441U (en) | 1981-11-20 | 1981-11-20 | Oil-proof structure of piezoelectric cable terminal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5877441U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6271621B1 (en) * | 1998-08-05 | 2001-08-07 | Matsushita Electric Industrial Co., Ltd. | Piezoelectric pressure sensor |
-
1981
- 1981-11-20 JP JP17215681U patent/JPS5877441U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5877441U (en) | 1983-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4424410A (en) | Splice connector with shield break | |
| JPS58501100A (en) | electrical equipment connection wires | |
| JPS6110198Y2 (en) | ||
| JPH0241268B2 (en) | ||
| JP3015370B1 (en) | Electrical connectors and plugs and jacks therefor | |
| JPH028384Y2 (en) | ||
| JP2515202Y2 (en) | Bypass cable termination | |
| JPH037891Y2 (en) | ||
| US4926013A (en) | Distributor cap with molded cable terminals | |
| JPH0119823Y2 (en) | ||
| JP2532266Y2 (en) | Power cable prefabricated connection | |
| JPS5922770Y2 (en) | Power cable connection | |
| JPH0736442Y2 (en) | Cable connection | |
| JP2547599Y2 (en) | Cable termination | |
| JPH0548380Y2 (en) | ||
| JPS5934061Y2 (en) | cable connector | |
| JPH0246202Y2 (en) | ||
| JPH0119557Y2 (en) | ||
| JPH08251791A (en) | Terminal connection box for plastic power cable | |
| JPS6330184Y2 (en) | ||
| JPS5926763Y2 (en) | Cable connection unit | |
| JPH03841Y2 (en) | ||
| JP2921348B2 (en) | Connection for plastic insulated power cable | |
| JPS5820480U (en) | Coaxial cable connector | |
| JPH0414869Y2 (en) |