JPS6133435B2 - - Google Patents
Info
- Publication number
- JPS6133435B2 JPS6133435B2 JP53116795A JP11679578A JPS6133435B2 JP S6133435 B2 JPS6133435 B2 JP S6133435B2 JP 53116795 A JP53116795 A JP 53116795A JP 11679578 A JP11679578 A JP 11679578A JP S6133435 B2 JPS6133435 B2 JP S6133435B2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric sheet
- piezoelectric
- winding frame
- vibrator
- sheet
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
【発明の詳細な説明】
本発明は可撓性の圧電材料のシート（以下、圧
電シートという）を２重以上に積層した圧電振動
子及びその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a piezoelectric vibrator in which sheets of flexible piezoelectric material (hereinafter referred to as piezoelectric sheets) are laminated in two or more layers, and a method for manufacturing the same.
従来、この種の振動子は圧電シートの厚さが10
μｍ乃至30μｍ程度で薄く柔いため、第１図に示
すように、樹脂等でできた弾性体４に圧電シート
１を巻き付けた構造が主であつた。然るに電気的
入出力を大きく取るために圧電シートを厚くする
ことが必要になる。この場合、１枚の圧電シート
を接着したあと、２枚目の圧電シートを重ねて接
着するというように順次同様の工程をふむ必要が
あつた。しかし圧電シートが非常に薄く柔らかい
ため整然と接着工事をするのが困難で時間も要し
た。 Traditionally, this type of vibrator has a piezoelectric sheet with a thickness of 10
Since the piezoelectric sheet is thin and flexible, with a thickness of approximately 30 μm to 30 μm, the main structure has been to wrap the piezoelectric sheet 1 around an elastic body 4 made of resin or the like, as shown in FIG. However, in order to increase the electrical input and output, it is necessary to make the piezoelectric sheet thicker. In this case, after bonding one piezoelectric sheet, it was necessary to repeat similar steps in order, such as stacking and bonding a second piezoelectric sheet. However, because the piezoelectric sheets are extremely thin and soft, it was difficult and time-consuming to glue them together in an orderly manner.
尚、図中、２，３及び２′，３′は各々電極を示
す。 In the figure, 2, 3 and 2', 3' indicate electrodes, respectively.
本発明は上記の如き、工事上の欠点を除き、か
つ自由に所望の厚みに積層することを可能にする
高分子圧電振動子及びその製造方法を提供するも
のである。 The present invention provides a polymer piezoelectric vibrator and a method for manufacturing the same, which eliminates the above-mentioned disadvantages in construction and allows lamination of layers to a desired thickness.
本発明は長い圧電シートが所望の寸法の巻枠に
２重以上に巻き付けられ、この電圧シートの径方
向が、少なくとも１箇所以上切断され、最外面の
電極と最内面の電極に、それぞれ端子を設けた高
分子圧電振動子と、圧電シートを巻枠に２重以上
に巻き付けた後、前記圧電シートの巻き付けの径
方向に前記圧電シートを切断することにより前記
圧電シートを分割する工程を備える圧電振動子の
製造方法である。 In the present invention, a long piezoelectric sheet is wound twice or more around a winding frame of desired dimensions, the radial direction of this voltage sheet is cut at at least one place, and terminals are attached to the outermost electrode and the innermost electrode, respectively. A piezoelectric device comprising the step of: dividing the piezoelectric sheet by wrapping the provided polymer piezoelectric vibrator and the piezoelectric sheet around a winding frame twice or more, and then cutting the piezoelectric sheet in the radial direction of the wrapping of the piezoelectric sheet. This is a method of manufacturing a vibrator.
次に本発明の実施例について図面を参照して説
明する。 Next, embodiments of the present invention will be described with reference to the drawings.
第２図は本発明の第１の実施例で、円筒形の巻
枠５の周囲に２重に巻き付けた振動子である。第
２図Ａは圧電シートを巻枠に巻き付けている状態
を示す斜視図、Ｂは巻き付けた状態の水平断面
図、Ｃは垂直断面図である。ここで１は圧電シー
ト、２は外面電極、３は内面電極、５は巻枠であ
る。但し圧電シート及び電極の厚みは説明のため
誇張して示してある。第２図Ｂを見て分かるよう
に内側第１層目を巻き終り、第２層目にかかる点
ａにおいて第１層目の外面電極２が第１層目内面
の電極３と短絡することが分る。即ち多層に巻き
付けた圧電シートが全面短絡した状態となる。そ
こで所望の厚みまで巻き付けた後、ａ及びｂの間
を切断し、切断箇所を絶縁性接着剤で接合する。
この状態では各層の隣合せの外面電極と内面電極
はそれぞれ接触しているが、それぞれの圧電シー
トは短絡される部分がなくなり、最外周の電極２
から取出した端子２′と最内周の電極３から取出
した端子３′間に交流電圧を印加する圧電シート
は伸縮し、巻枠に弾性体を使用すれば巻枠ごと振
動する。第２図Ｄは２箇所切断し、２組の振動子
とした場合の例で左右それぞれ半円筒形の振動子
として形成され、それぞれ端子２′，３′及び
２″，３″が独立に取出される。左右同時に振動さ
せる場合は、２′，２″と３′，３″を各々並列接続
するか直列接続すればよい。また、圧電シート間
に接着剤を用いて巻き付けたものを上記のように
切断した後、巻枠を取外せば圧電シートのみで構
成された振動子を得ることができる。 FIG. 2 shows a first embodiment of the present invention, which is a vibrator wound twice around a cylindrical winding frame 5. In FIG. FIG. 2A is a perspective view showing a piezoelectric sheet being wound around a winding frame, B is a horizontal sectional view of the wound state, and FIG. 2C is a vertical sectional view. Here, 1 is a piezoelectric sheet, 2 is an outer electrode, 3 is an inner electrode, and 5 is a winding frame. However, the thicknesses of the piezoelectric sheet and electrodes are exaggerated for the sake of explanation. As can be seen from FIG. 2B, the outer electrode 2 of the first layer short-circuits with the electrode 3 of the inner surface of the first layer at a point a on the second layer after winding the inner first layer. I understand. That is, the piezoelectric sheet wound in multiple layers is in a state where the entire surface is short-circuited. After winding it to a desired thickness, it is cut between a and b, and the cut portion is joined with an insulating adhesive.
In this state, the adjacent outer and inner electrodes of each layer are in contact with each other, but there are no short-circuited parts of each piezoelectric sheet, and the outermost electrode 2
The piezoelectric sheet to which an alternating current voltage is applied between the terminal 2' taken out from the terminal 2' and the terminal 3' taken out from the innermost electrode 3 expands and contracts, and if an elastic body is used for the winding frame, the whole winding frame vibrates. Figure 2D shows an example in which two sets of vibrators are made by cutting at two places.The left and right vibrators are formed as semi-cylindrical vibrators, and the terminals 2', 3' and 2'', 3'' can be taken out independently. be done. If the left and right sides are to be vibrated simultaneously, 2', 2'' and 3', 3'' may be connected in parallel or in series. Furthermore, by cutting the piezoelectric sheets wound together using an adhesive as described above and then removing the winding frame, a vibrator composed only of the piezoelectric sheets can be obtained.
次に本発明の平板状振動子に週用した第２の実
施例について、第３図を参照しながら説明する。
第３図Ａは平板状巻枠５に圧電シート１を巻き付
ける状況を示す斜視図、Ｂは３重に巻き付けた状
態を示す平面図、ＣはＢ図のａ，ｂの部分から切
断した後、巻枠５と分離し、２個の平板状振動子
が完成した状態を示す斜視図である。いまＢ図の
如く巻付けた状態を見ると端子２′，３′間及び
２″，３″間は第１の実施例の説明と同様、短絡さ
れた状態である。次に各圧電シートがばらばらに
ならないよう周囲等を接着して保持し、ａ，ｂの
部分から左右を切断する。この状態では各層間の
隣接する外面電極と内面電極は接しているが、各
圧電シートの両電極間は短絡された部分はなくな
る。次に巻枠５をＣ図の如く分離すると２個の平
板状振動子が得られる。 Next, a second embodiment of the present invention, which is applied to a flat plate vibrator, will be described with reference to FIG.
FIG. 3A is a perspective view showing how the piezoelectric sheet 1 is wound around the flat winding frame 5, B is a plan view showing the state where the piezoelectric sheet 1 is wrapped three times, and FIG. FIG. 3 is a perspective view showing a completed state in which two flat vibrators are separated from the winding frame 5. FIG. Looking at the wound state as shown in Figure B, terminals 2' and 3' and terminals 2'' and 3'' are short-circuited as in the description of the first embodiment. Next, the periphery of each piezoelectric sheet is glued and held so that it does not fall apart, and the left and right sides are cut from portions a and b. In this state, the adjacent outer and inner electrodes between each layer are in contact with each other, but there is no short-circuited portion between the electrodes of each piezoelectric sheet. Next, the winding frame 5 is separated as shown in Figure C to obtain two flat vibrators.
本発明による振動子は空中で使用する電気音響
変換器の他、外周を絶縁性油あるいは、絶縁性樹
脂等で覆うことにより水中用電気音響変換器とし
ても有用である。 The vibrator according to the present invention is useful not only as an electroacoustic transducer for use in the air, but also as an underwater electroacoustic transducer by covering the outer periphery with insulating oil, insulating resin, or the like.
以上の如く本発明によれば電気的入出力を大き
く取ることが可能になると共に圧電シートを多層
化して任意の厚みの振動子を容易に製作すること
ができる。 As described above, according to the present invention, it is possible to increase electrical input and output, and it is also possible to easily manufacture a vibrator of any thickness by using multilayer piezoelectric sheets.
第１図Ａ，Ｂ及びＣは従来の高分子圧電振動子
の斜視図、平面図及び側断面図、第２図Ａ，Ｂ，
Ｃ及びＤは本発明の第１の実施例を示す斜視図、
平断面図、側断面図及び平断面図、第３図Ａ，Ｂ
及びＣは本発明の第２の実施例を示す斜視図、平
面図、及び斜視図である。
１……圧電シート、２……外面電極、３……内
面電極、２′，３′……端子、４……弾性体巻枠、
５……巻枠、ａ，ｂ……切断線。
Figures 1A, B, and C are perspective views, top views, and side sectional views of conventional polymer piezoelectric vibrators; Figures 2A, B, and
C and D are perspective views showing the first embodiment of the present invention;
Plan sectional view, side sectional view and plan sectional view, Figure 3 A, B
and C are a perspective view, a plan view, and a perspective view showing a second embodiment of the present invention. 1... Piezoelectric sheet, 2... External electrode, 3... Inner electrode, 2', 3'... Terminal, 4... Elastic body winding frame,
5... Winding frame, a, b... Cutting line.
Claims (1)
くとも一部分が各層間それぞれ密着するように巻
枠に２重以上に巻き付けられ、且つ前記部材が前
記巻き付けの径方向に切断部を有し、この切断部
によつて前記部材が分割されていることを特徴と
する圧電振動子。 ２ 圧電シートの両面に電極を形成する工程と、
この電極が形成された圧電シートを巻枠に少なく
とも一部分が各層間それぞれ密着するように接着
あるいは機械的に保持して２重以上に巻き付ける
工程と、前記圧電シートを前記圧電シートの巻き
付けの径方向に少なくとも一箇所切断して前記圧
電シートを分割する工程とを備えて成ることを特
徴とする圧電振動子の製造方法。[Scope of Claims] 1 A member having electrodes on both sides of a piezoelectric sheet is wound around a winding frame twice or more so that at least a portion of each layer is in close contact with each other, and the member has a cut portion in the radial direction of the winding. A piezoelectric vibrator comprising: a piezoelectric vibrator, wherein the member is divided by the cut portion. 2. Forming electrodes on both sides of the piezoelectric sheet;
A step of wrapping the piezoelectric sheet on which the electrodes are formed in two or more layers by adhering or mechanically holding the piezoelectric sheet around the winding frame so that at least a portion of each layer is in close contact with each other; A method for manufacturing a piezoelectric vibrator, comprising: dividing the piezoelectric sheet by cutting at least one point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11679578A JPS5542474A (en) | 1978-09-21 | 1978-09-21 | Polymer piezoelectric vibrator and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11679578A JPS5542474A (en) | 1978-09-21 | 1978-09-21 | Polymer piezoelectric vibrator and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5542474A JPS5542474A (en) | 1980-03-25 |
| JPS6133435B2 true JPS6133435B2 (en) | 1986-08-01 |
Family
ID=14695862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11679578A Granted JPS5542474A (en) | 1978-09-21 | 1978-09-21 | Polymer piezoelectric vibrator and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5542474A (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5780899A (en) * | 1980-11-07 | 1982-05-20 | Nec Corp | Transmitter and receiver |
| US4486869A (en) * | 1981-02-25 | 1984-12-04 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Underwater acoustic devices |
| JPS594658U (en) * | 1982-07-02 | 1984-01-12 | 東レ株式会社 | Multilayer laminated electrical conversion element |
| JPS5943356A (en) * | 1982-09-06 | 1984-03-10 | Kureha Chem Ind Co Ltd | Ultrasonic probe |
| US4805157A (en) * | 1983-12-02 | 1989-02-14 | Raytheon Company | Multi-layered polymer hydrophone array |
| US4879698A (en) * | 1988-11-03 | 1989-11-07 | Sensor Electronics, Inc. | Piezopolymer actuators |
| US6586859B2 (en) * | 2000-04-05 | 2003-07-01 | Sri International | Electroactive polymer animated devices |
| US7400080B2 (en) * | 2002-09-20 | 2008-07-15 | Danfoss A/S | Elastomer actuator and a method of making an actuator |
| US7952261B2 (en) | 2007-06-29 | 2011-05-31 | Bayer Materialscience Ag | Electroactive polymer transducers for sensory feedback applications |
| EP2239793A1 (en) | 2009-04-11 | 2010-10-13 | Bayer MaterialScience AG | Electrically switchable polymer film structure and use thereof |
| WO2012118916A2 (en) | 2011-03-01 | 2012-09-07 | Bayer Materialscience Ag | Automated manufacturing processes for producing deformable polymer devices and films |
| JP2014517331A (en) | 2011-03-22 | 2014-07-17 | バイエル・インテレクチュアル・プロパティ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Electric field responsive polymer actuator lenticular system |
| US8891222B2 (en) | 2012-02-14 | 2014-11-18 | Danfoss A/S | Capacitive transducer and a method for manufacturing a transducer |
| US8692442B2 (en) | 2012-02-14 | 2014-04-08 | Danfoss Polypower A/S | Polymer transducer and a connector for a transducer |
| US9876160B2 (en) | 2012-03-21 | 2018-01-23 | Parker-Hannifin Corporation | Roll-to-roll manufacturing processes for producing self-healing electroactive polymer devices |
| KR20150031285A (en) | 2012-06-18 | 2015-03-23 | 바이엘 인텔렉쳐 프로퍼티 게엠베하 | Stretch frame for stretching process |
| US9590193B2 (en) | 2012-10-24 | 2017-03-07 | Parker-Hannifin Corporation | Polymer diode |
| CN112038480B (en) | 2020-08-26 | 2021-10-29 | 南通纺织丝绸产业技术研究院 | Piezoelectric fiber with Swiss roll structure and preparation method and application thereof |
-
1978
- 1978-09-21 JP JP11679578A patent/JPS5542474A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5542474A (en) | 1980-03-25 |
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