JPH05226716A - Simply packaged electrostrictive effect element - Google Patents
Simply packaged electrostrictive effect elementInfo
- Publication number
- JPH05226716A JPH05226716A JP4028437A JP2843792A JPH05226716A JP H05226716 A JPH05226716 A JP H05226716A JP 4028437 A JP4028437 A JP 4028437A JP 2843792 A JP2843792 A JP 2843792A JP H05226716 A JPH05226716 A JP H05226716A
- Authority
- JP
- Japan
- Prior art keywords
- effect element
- electrostrictive
- electrostrictive effect
- simple exterior
- lid member
- 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
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電歪効果素子に利用さ
れ、特に、ケース入りの簡易外装型電歪効果素子に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrostrictive effect element, and more particularly to a case-type simple exterior electrostrictive effect element.
【０００２】[0002]
【従来の技術】従来の電歪効果素子は図３に示すよう
に、厚さ約０．１ｍｍの電歪材７と厚さ約１０μｍの内
部電極８とが交互に積層され、内部電極８が露出してい
る一対の側面には内部電極８の端面を一層おきにしかも
それぞれの側面で互い違いにガラス等の絶縁層９で絶縁
し、絶縁されていない内部電極はそれぞれの側面で銀ペ
ースト等で構成された外部電極１０で電気的に接続され
ている。このときそれぞれの外部電極１０にはんだ１２
で接続されたリード線５に１５０Ｖの電圧を印加する
と、長さ２０ｍｍの電歪効果素子で約２０μｍの変位を
発生する。2. Description of the Related Art In a conventional electrostrictive effect element, as shown in FIG. 3, an electrostrictive material 7 having a thickness of about 0.1 mm and an internal electrode 8 having a thickness of about 10 μm are alternately laminated. On the exposed pair of side surfaces, the end faces of the internal electrodes 8 are alternately arranged and alternately insulated on each side by an insulating layer 9 such as glass, and the non-insulated internal electrodes are formed on each side by silver paste or the like. The external electrodes 10 are electrically connected. At this time, solder 12 is applied to each external electrode 10.
When a voltage of 150 V is applied to the lead wire 5 connected by, a displacement of about 20 μm is generated in the electrostrictive effect element having a length of 20 mm.
【０００３】通常この電歪効果素子は上下の両端面以外
は全てエポキシ樹脂１１で塗装し、外部電極１０、絶縁
層９および内部電極８の端面が直接外気と接触しないよ
うにしている。これは、本電歪効果素子が、側面に内部
電極８が０．１ｍｍ間隔で露出する構造であるうえ、こ
の内部電極８間に１５０Ｖにおよぶ高電圧をかけるため
水分やイオン性の物質が付着することにより絶縁性が低
下してしまう欠点を防ぐためである。Normally, the electrostrictive effect element is coated with epoxy resin 11 except for both upper and lower end surfaces so that the end surfaces of the external electrode 10, the insulating layer 9 and the internal electrode 8 do not come into direct contact with the outside air. This electrostrictive effect element has a structure in which the internal electrodes 8 are exposed at intervals of 0.1 mm on the side surface, and a high voltage of 150 V is applied between the internal electrodes 8, so that water or an ionic substance is attached. This is to prevent the drawback that the insulating property is deteriorated by doing so.
【０００４】しかし、エポキシ樹脂１１では湿気や汚染
物質の侵入を完全に防止することは困難で、電歪効果素
子開発当初と比較すれば大幅に（約１桁）信頼性が向上
してきたとはいえ、一般の電子部品と比較すると本構造
の電歪効果素子の信頼性はなお低いという欠点がある。However, it is difficult to completely prevent invasion of moisture and contaminants with the epoxy resin 11, and it can be said that the reliability has been significantly improved (about one digit) compared with the initial development of the electrostrictive effect element. However, the electrostrictive effect element of this structure has a drawback that the reliability is still low as compared with general electronic components.
【０００５】このような樹脂外装型電歪効果素子の欠点
を改善するための一つの方法として、図４に示すように
外気を完全に遮断する完全気密型金属ケース入り電歪効
果素子が考案されている（特開平２−１２５６７４号公
報参照）。この完全気密型金属ケース入り電歪効果素子
は、エポキシ樹脂で外装し金属製のベローズケースに挿
入された電歪効果素子１の両端面の一方には気密リード
端子１６を有する金属部材１４を固着し、他方には金属
部材１５を固着してありかつベローズケースと金属部材
１４および金属部材１５とは溶接等で接続され密封構造
になっている。As one method for improving the drawbacks of such a resin-coated electrostrictive effect element, a completely airtight metal case-encased electrostrictive effect element for completely shielding the outside air was devised as shown in FIG. (See Japanese Patent Laid-Open No. 2-125674). In this electrostrictive effect element with a completely airtight metal case, a metal member 14 having an airtight lead terminal 16 is fixed to one of both end faces of the electrostrictive effect element 1 which is covered with an epoxy resin and inserted in a metal bellows case. On the other hand, a metal member 15 is fixed to the other, and the bellows case and the metal member 14 and the metal member 15 are connected by welding or the like to form a sealed structure.
【０００６】この構造にすると、前記の信頼性は大幅に
向上するが、一方、樹脂外装型電歪効果素子に比べ外形
が大幅に大きくなってしまうこと。およびケースへの組
立工程が複雑精緻であるためコストが大幅に増加するこ
との欠点がある。With this structure, the reliability is greatly improved, but on the other hand, the outer shape is significantly larger than that of the resin-clad electrostrictive effect element. Also, there is a drawback that the cost is significantly increased due to the complicated and elaborate assembly process for the case.
【０００７】前記の樹脂外装型素子および完全気密型金
属ケース入り電歪効果素子のそれぞれの欠点を改善する
方法として、図５（ａ）および（ｂ）に示すような簡易
外装型電歪効果素子が提案されている。なお、図５
（ａ）は縦断面図、および図５（ｂ）は平面図である
（特願平３−１０２２９２号本願出願時に未公開）。As a method for improving the respective drawbacks of the resin-clad type element and the completely airtight metal case encased electrostrictive element, a simple external type electrostrictive element as shown in FIGS. 5 (a) and 5 (b) is used. Is proposed. Note that FIG.
FIG. 5A is a vertical cross-sectional view, and FIG. 5B is a plan view (not disclosed at the time of filing of the present application for Japanese Patent Application No. 3-102292).
【０００８】本構造の簡易外装型電歪効果素子は以下の
構造を有している。円筒状のステンレス製の金属ケース
４に挿入された電歪効果素子１の一方の端面には、先端
に高さ約３ｍｍ、底面の径が約６ｍｍの円錐を有する円
盤状の円錐状の上金具２が接着剤で接着され、他方の面
には厚さ約５ｍｍのステンレス製円盤状で左右にリード
線５が貫通するリード孔３ａを有し、かつ深さ約２ｍｍ
の円錐状のくぼみを有する下金具３が接着剤で接着さ
れ、下金具３と金属ケース４とはスポット溶接で固着さ
れている。The simple exterior type electrostrictive effect element of this structure has the following structure. A disk-shaped conical upper metal fitting having a cone having a height of about 3 mm and a bottom diameter of about 6 mm at one end surface of the electrostrictive effect element 1 inserted in a cylindrical stainless steel metal case 4. 2 is adhered with an adhesive, and the other surface has a disc-shaped stainless steel plate having a thickness of about 5 mm and has lead holes 3a through which the lead wires 5 pass, and a depth of about 2 mm.
The lower metal fitting 3 having a conical recess is adhered with an adhesive, and the lower metal fitting 3 and the metal case 4 are fixed by spot welding.
【０００９】このとき、上金具２は、金属ケース４の内
側の面を案内にして摺動し、電歪効果素子１の変位を他
の物に伝えることができる。At this time, the upper metal fitting 2 can slide by using the inner surface of the metal case 4 as a guide to transmit the displacement of the electrostrictive effect element 1 to another object.
【００１０】本構造の簡易外装型電歪効果素子は、樹脂
外装型電歪効果素子に対しては、以下の特徴を有する。The simple exterior type electrostrictive effect element of this structure has the following features with respect to the resin exterior type electrostrictive effect element.
【００１１】 雰囲気の影響を受けにくく信頼性が高
い。この効果は、蓋部材とケースを弾性を有するシール
材でシールすることによりさらに改善される。It is not easily affected by the atmosphere and has high reliability. This effect is further improved by sealing the lid member and the case with a sealing material having elasticity.
【００１２】 外形寸法の精度が向上する。The accuracy of the external dimensions is improved.
【００１３】 外力、特に抗析力に強い。Strong against external force, especially with anti-aggregation force.
【００１４】 他の部材との接合が容易である。It is easy to join with other members.
【００１５】 円錐状の突起とくぼみがついており、
位置合わせが容易である。It has a conical projection and a hollow,
Easy to align.
【００１６】一方、完全気密型金属ケース入り電歪効果
素子に対しては、以下の特徴を有する。On the other hand, the electrostrictive effect element in the completely airtight metal case has the following features.
【００１７】 外形寸法が小さい。The external dimensions are small.
【００１８】 製造工程が簡略であるため大幅だコス
トダウンが可能である。Since the manufacturing process is simple, it is possible to significantly reduce the cost.
【００１９】[0019]
【発明が解決しようとする課題】前述した従来の簡易外
装型電歪効果素子の変位量は、内部の電歪効果素子の素
子長によって決まる。前記の通り、内部の電歪効果素子
の長さが２０ｍｍで、電圧を１５０Ｖ印加すると、約２
μｍの変位量が得られるが、用途としては、必要な最大
変位量はさまざまである。例えば、２０μｍ、４０μ
ｍ、６０μｍ、および１２０μｍなどとなるが、その際
内部の素子長を、それぞれ、２０ｍｍ、４０ｍｍ、６０
ｍｍ、および１２０ｍｍとした設計にしなければならな
い。すなわち、用途によって長さの設計の異なる簡易外
装型電歪効果素子を揃えなければならず、その結果、多
種の部材を揃えなければならず、また生産ラインは複雑
となり、コストが高くなる欠点がある。The displacement amount of the conventional simple exterior electrostrictive effect element described above is determined by the element length of the internal electrostrictive effect element. As described above, when the internal electrostrictive effect element has a length of 20 mm and a voltage of 150 V is applied, it is about 2
Although the displacement amount of μm can be obtained, the maximum displacement amount required for various purposes varies. For example, 20μm, 40μ
m, 60 μm, 120 μm, etc., where the internal element lengths are 20 mm, 40 mm, 60, respectively.
The design must be mm and 120 mm. That is, it is necessary to prepare simple exterior type electrostrictive effect elements having different length designs depending on applications, and as a result, various kinds of members must be prepared, and the production line becomes complicated and the cost becomes high. is there.
【００２０】本発明の目的は、いろいろな特性要求の電
歪効果素子を低コストで製造できる簡易外装型電歪効果
素子を提供することにある。An object of the present invention is to provide a simple exterior type electrostrictive effect element capable of manufacturing an electrostrictive effect element having various characteristics required at low cost.
【００２１】[0021]
【課題を解決するための手段】本発明は、円筒状の金属
ケースに挿入された電歪素子と、前記電歪素子の一端に
接着され前記金属ケースの内面と摺動するように設けら
れた第一の蓋部材と、前記電歪素子の他端に接着され前
記金属ケースの内面に固着された第二の蓋部材とを有す
る簡易外装型電歪効果素子において、前記第一および第
二の蓋部材は、前記第一および第二の蓋部を嵌合させて
接着するための嵌合手段を有し、前記金属ケースは、そ
の側面に設けられた前記電歪素子よりリード線を取り出
すためのリード孔を有することを特徴とする。According to the present invention, there is provided an electrostrictive element inserted in a cylindrical metal case, and is attached to one end of the electrostrictive element so as to slide on the inner surface of the metal case. In a simple exterior electrostrictive effect element having a first lid member and a second lid member bonded to the other end of the electrostrictive element and fixed to the inner surface of the metal case, the first and second The lid member has a fitting means for fitting and adhering the first and second lid parts, and the metal case is for taking out a lead wire from the electrostrictive element provided on a side surface thereof. Is characterized by having lead holes.
【００２２】また、本発明は、前記簡易外装型電歪素子
を単体として、その嵌合手段により結合された２個以上
の簡易外装型電歪効果素子単体を含むことを特徴とす
る。Further, the present invention is characterized in that the simple exterior type electrostrictive element is a single body and includes two or more simple exterior type electrostrictive effect elements which are coupled by a fitting means.
【００２３】また、本発明は、前記嵌合手段は、前記第
一の蓋部材の上面に設けられた円錐形状の突起、および
前記第二の蓋部材の下面に設けられその底面積および深
さが突起の底面積および高さと同じかまたは大きい円錐
形状のくぼみであることが好ましい。According to the present invention, the fitting means includes a conical projection provided on an upper surface of the first lid member, and a bottom area and a depth provided on a lower surface of the second lid member. Is preferably a conical depression equal to or larger than the bottom area and height of the protrusion.
【００２４】また、本発明は、前記嵌合手段は、前記第
一の蓋部材の上面に設けられた円錐台形状の突起、およ
び前記第二の蓋部材の下面に設けられその底面積および
高さが前記突起の底面積および高さと同じか大きい円錐
台形状のくぼみであることが好ましい。Further, according to the present invention, the fitting means includes a truncated cone-shaped projection provided on an upper surface of the first lid member, and a bottom area and a height thereof provided on a lower surface of the second lid member. Is preferably a truncated cone-shaped recess equal to or larger than the bottom area and height of the protrusion.
【００２５】[0025]
【作用】電歪効果素子を金属ケースで密封する上下の蓋
部材は、例えば、上部の蓋部材には円錐形状の突起、下
部の蓋部材にはその突起と嵌合するように寸法が突起に
等しいかそれよりも大きいみぞが、嵌合手段として設け
られる。そして、この簡易外装型電歪素子単体を、この
嵌合手段により要求変位量に合わせて複数個連結した構
成とする。The upper and lower lid members that seal the electrostrictive effect element with the metal case have, for example, a conical projection for the upper lid member and a projection for fitting the lower lid member with the projection. Grooves of equal or larger size are provided as fitting means. A plurality of the simple exterior electrostrictive elements are connected by the fitting means according to the required displacement amount.
【００２６】従って、設計の違う部材を多く揃える必要
がなくなり、また生産ラインの単純化が図れるなど、大
幅なコスト低減が可能となる。Therefore, it is not necessary to prepare a large number of members having different designs, and the production line can be simplified, thereby making it possible to significantly reduce the cost.
【００２７】また、嵌合手段としては、電歪効果素子が
円筒形状のときは、円錐形状または円錐台形状が好まし
い。なお、この嵌合手段は、これに限らず電歪効果素子
の形状に合わせて他の形状のものでもよい。Further, as the fitting means, when the electrostrictive effect element has a cylindrical shape, a conical shape or a truncated cone shape is preferable. The fitting means is not limited to this, and may have another shape according to the shape of the electrostrictive effect element.
【００２８】[0028]
【実施例】以下、本発明の実施例について図面を参照し
て説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００２９】図１（ａ）は本発明の第一実施例を示す縦
断面図、および図１（ｂ）はその平面図である。FIG. 1A is a vertical sectional view showing a first embodiment of the present invention, and FIG. 1B is a plan view thereof.
【００３０】本第一実施例は、２個の簡易外装型電歪効
果素子単体６を含み、簡易外装型電歪効果素子単体６
は、円筒状のステンレス製の金属ケース４に挿入された
電歪効果素子１の上端には、先端に高さ約１．５ｍｍ、
底面の径が５．０±０．０１ｍｍの円錐を有する円盤状
の上金具２が接着剤で接着され、下端には、深さ約１．
７ｍｍ、径が５．０±０．０１ｍｍの円錐状のくぼみを
有する下金具３が接着剤で接着され、下金具３と金属ケ
ース４とはスポット溶接で固着され、リード線５は金属
ケース４の側面からリード孔４ａを介して取り出される
ことで構成される。The first embodiment includes two simple exterior type electrostrictive effect element single bodies 6, and a simple exterior type electrostrictive effect element single body 6 is provided.
Is about 1.5 mm in height at the tip of the upper end of the electrostrictive effect element 1 inserted in the cylindrical metal case 4 made of stainless steel,
A disc-shaped upper metal fitting 2 having a cone with a bottom surface diameter of 5.0 ± 0.01 mm is adhered with an adhesive, and a depth of about 1.
The lower metal fitting 3 having a conical recess having a diameter of 7 mm and a diameter of 5.0 ± 0.01 mm is adhered with an adhesive, the lower metal fitting 3 and the metal case 4 are fixed by spot welding, and the lead wire 5 is connected to the metal case 4. It is configured to be taken out from the side surface of the via the lead hole 4a.
【００３１】そして、本実施例は、上側の簡易外装型電
歪効果素子単体６の下金具３と、下側の簡易外装型電歪
効果素子単体６の上金具２とをはめ込み、接着剤で接着
し、簡易樹脂外装素子とした。金属ケース４の側面から
取り出したリード線５は、正極同士および負極同士をは
んだ付して接続したものである。また、リード孔４ａは
弾性を有するシール材でシールされる。In this embodiment, the lower metal fitting 3 of the upper simple exterior type electrostrictive effect element single body 6 and the upper metal fitting 2 of the lower simple exterior type electrostrictive effect element single body 6 are fitted to each other with an adhesive. Bonded to form a simple resin exterior device. The lead wire 5 taken out from the side surface of the metal case 4 is obtained by soldering and connecting the positive electrodes to each other and the negative electrodes to each other. Further, the lead hole 4a is sealed with a sealing material having elasticity.
【００３２】本発明の特徴は、図１において、簡易外装
型電歪効果素子単体６が、第一蓋部材としての上金具２
は嵌合手段として円錐形状の突起を有し、第二蓋部材と
しての下金具３は嵌合手段としてその底面積が突起の底
面積に等しく深さが突起の高さよりも大きい円錐形状の
くぼみを有し、それぞれの金属ケース４にはリード孔４
ａが設けられ、これら２個の簡易外装型電歪効果素子単
体６が嵌合手段により連結されたことにある。A feature of the present invention is that, in FIG. 1, the simple exterior electrostrictive effect element single body 6 is a top metal member 2 as a first lid member.
Has a conical projection as a fitting means, and the lower metal fitting 3 as a second lid member as a fitting means has a conical recess whose bottom area is equal to the bottom area of the projection and whose depth is larger than the height of the projection. And each metal case 4 has a lead hole 4
a is provided and these two simple exterior type electrostrictive effect element single bodies 6 are connected by the fitting means.
【００３３】次に、本実施例で得られる電歪特性につい
て説明する。簡易外装型電歪効果素子単体６では、１５
０Ｖ印加して２０μｍの変位量が得られるが、２個連結
した本実施例では、１５０Ｖで４０μｍの変位量が得ら
れた。Next, the electrostrictive characteristics obtained in this embodiment will be described. The simple exterior type electrostrictive effect element alone 6 is 15
A displacement amount of 20 μm was obtained by applying 0 V, but in the present example in which two pieces were connected, a displacement amount of 40 μm was obtained at 150 V.
【００３４】なお、本第一実施例では２個連結した場合
について述べたが、当然３個以上の連結も可能で、実際
に簡易外装型電歪効果素子単体６を３０個連結して約６
００μｍの変位量が得られることを確認した。In the first embodiment, the case where two pieces are connected has been described, but it is naturally possible to connect three or more pieces, and in actuality, 30 simple exterior electrostrictive effect element units 6 are connected to each other to make about 6 pieces.
It was confirmed that a displacement amount of 00 μm was obtained.
【００３５】図２（ａ）は本発明の第二の実施例を示す
縦断面図、および図２（ｂ）はその平面図である。FIG. 2 (a) is a vertical sectional view showing a second embodiment of the present invention, and FIG. 2 (b) is a plan view thereof.
【００３６】本第二実施例は、図１の第一実施例におい
て、上金具２および下金具３の嵌合手段を円錐形状から
円錐台形状に替えたものである。すなわち、上金具２
は、高さ１．０ｍｍ、上側の円周が２．０ｍｍ、底辺の
円周が５．０±０．０１ｍｍの円錐台形状の突起を有す
る。一方、下金具３は、高さ１．５ｍｍ、上側の円周が
１．０ｍｍ、底辺の円周が５．０±０ｍｍの円錐第一形
状のくぼみを有する。本第二実施例は第一実施例と同様
に、簡易外装型電歪効果素子単体６を２個連結したもの
で、第一実施例と同様の電歪特性が得られる。In the second embodiment, the fitting means for the upper fitting 2 and the lower fitting 3 in the first embodiment shown in FIG. 1 is changed from a conical shape to a truncated cone shape. That is, upper metal fitting 2
Has a frustoconical projection having a height of 1.0 mm, an upper circumference of 2.0 mm, and a bottom circumference of 5.0 ± 0.01 mm. On the other hand, the lower metal fitting 3 has a conical first-shaped recess having a height of 1.5 mm, an upper circumference of 1.0 mm, and a bottom circumference of 5.0 ± 0 mm. The second embodiment is similar to the first embodiment in that two simple exterior electrostrictive effect element single bodies 6 are connected, and the same electrostrictive characteristics as the first embodiment can be obtained.
【００３７】また、本第二実施例においても、第一実施
例と同様に簡易外装型電歪効果素子単体６を２個以上連
結することができる。Also in the second embodiment, as in the first embodiment, two or more simple exterior electrostrictive effect element units 6 can be connected.
【００３８】[0038]
【発明の効果】以上説明したように、本発明は、簡易外
装型電歪効果素子単体を２個以上、希望の変位量を得ら
れる数だけ連結できる構造のため、設計の違う部材を多
く揃える必要がなくなり、生産ラインが単純化できるな
ど大幅なコストダウンが図れる効果がある。As described above, the present invention has a structure in which two or more simple exterior type electrostrictive effect elements can be connected by the number capable of obtaining a desired displacement amount, so that many members having different designs are prepared. There is no need, and the production line can be simplified, resulting in significant cost reduction.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の第一実施例を示す縦断面図および平面
図。FIG. 1 is a vertical sectional view and a plan view showing a first embodiment of the present invention.
【図２】本発明の第二実施例を示す縦断面図および平面
図。FIG. 2 is a vertical sectional view and a plan view showing a second embodiment of the present invention.
【図３】従来の樹脂外装型電歪効果素子の一例を示す縦
断面図。FIG. 3 is a vertical cross-sectional view showing an example of a conventional resin-coated electrostrictive effect element.
【図４】従来の完全気密型金属ケース入り電歪効果素子
の一例を示す縦断面図。FIG. 4 is a vertical cross-sectional view showing an example of a conventional electrostrictive effect element with a completely airtight metal case.
【図５】従来の簡易外装型電歪効果素子の一例を示す縦
断面図および平面図。FIG. 5 is a vertical sectional view and a plan view showing an example of a conventional simple exterior electrostrictive effect element.
１ 電歪効果素子 ２ 上金具 ３ 下金具 ３ａ、４ａ リード孔 ４ 金属ケース ５ リード線 ６ 簡易外装型電歪効果素子単体 ７ 電歪材 ８ 内部電極 ９ 絶縁層 １０ 外部電極 １１ エポキシ樹脂 １２ はんだ １３ ベローズ １４、１５ 金属部材 １６ 気密リード端子 1 Electrostrictive effect element 2 Upper metal fitting 3 Lower metal fitting 3a, 4a Lead hole 4 Metal case 5 Lead wire 6 Simple exterior type electrostrictive effect element single body 7 Electrostrictive material 8 Inner electrode 9 Insulating layer 10 External electrode 11 Epoxy resin 12 Solder 13 Bellows 14, 15 Metal member 16 Airtight lead terminal
Claims (4)
子と、前記電歪素子の一端に接着され前記金属ケースの
内面と摺動するように設けられた第一の蓋部材と、前記
電歪素子の他端に接着され前記金属ケースの内面に固着
された第二の蓋部材とを有する簡易外装型電歪効果素子
において、 前記第一および第二の蓋部材は、前記第一および第二の
蓋部を嵌合させて接着するための嵌合手段を有し、 前記金属ケースは、その側面に設けられた前記電歪素子
よりリード線を取り出すためのリード孔を有することを
特徴とする簡易外装型電歪効果素子。1. An electrostrictive element inserted into a cylindrical metal case, a first lid member adhered to one end of the electrostrictive element and provided so as to slide on an inner surface of the metal case, In a simple exterior electrostrictive effect element having a second lid member adhered to the other end of the electrostrictive element and fixed to the inner surface of the metal case, the first and second lid members are the first and the second lid members. It has a fitting means for fitting and adhering the second lid portion, and the metal case has a lead hole for taking out a lead wire from the electrostrictive element provided on a side surface thereof. A simple exterior electrostrictive effect element.
において、 前記簡易外装型電歪素子を単体として、その嵌合手段に
より結合された２個以上の簡易外装型電歪効果素子単体
を含むことを特徴とする簡易外装型電歪効果素子。2. The simple exterior electrostrictive effect element according to claim 1, wherein the simple exterior electrostrictive element is a single body, and two or more simple exterior electrostrictive effect elements are joined by a fitting means. A simple exterior type electrostrictive effect element including:
面に設けられた円錐形状の突起、および前記第二の蓋部
材の下面に設けられその底面積および深さが前記突起の
底面積および高さと同じかまたは大きい円錐形状のくぼ
みである請求項１または請求項２記載の簡易外装型電歪
効果素子。3. The fitting means comprises a conical projection provided on the upper surface of the first lid member, and a bottom area and depth of the projection provided on the lower surface of the second lid member. The simple exterior electrostrictive effect element according to claim 1 or 2, which is a conical recess that is equal to or larger than the bottom area and height.
面に設けられた円錐台形状の突起、および前記第二の蓋
部材の下面に設けられその底面積および高さが前記突起
の底面積および高さと同じか大きい円錐台形状のくぼみ
である請求項１または請求項２記載の簡易外装型電歪効
果素子。4. The fitting means is a truncated cone-shaped projection provided on the upper surface of the first lid member, and the bottom surface and height of the projection are provided on the lower surface of the second lid member. The simple exterior type electrostrictive effect element according to claim 1 or 2, wherein the simple exterior electrostrictive effect element is a truncated cone-shaped recess that is equal to or larger than the bottom area and height of the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4028437A JPH05226716A (en) | 1992-02-14 | 1992-02-14 | Simply packaged electrostrictive effect element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4028437A JPH05226716A (en) | 1992-02-14 | 1992-02-14 | Simply packaged electrostrictive effect element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05226716A true JPH05226716A (en) | 1993-09-03 |
Family
ID=12248648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4028437A Pending JPH05226716A (en) | 1992-02-14 | 1992-02-14 | Simply packaged electrostrictive effect element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05226716A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08116102A (en) * | 1993-09-13 | 1996-05-07 | Nec Corp | Piezoelectric actuator |
| JP2013207091A (en) * | 2012-03-28 | 2013-10-07 | Taiheiyo Cement Corp | Piezoelectric actuator and method of manufacturing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3124672B2 (en) * | 1993-12-28 | 2001-01-15 | 株式会社細川洋行 | Bags for milk bag-in-box |
-
1992
- 1992-02-14 JP JP4028437A patent/JPH05226716A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3124672B2 (en) * | 1993-12-28 | 2001-01-15 | 株式会社細川洋行 | Bags for milk bag-in-box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08116102A (en) * | 1993-09-13 | 1996-05-07 | Nec Corp | Piezoelectric actuator |
| JP2013207091A (en) * | 2012-03-28 | 2013-10-07 | Taiheiyo Cement Corp | Piezoelectric actuator and method of manufacturing the same |
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