JPH0244890U - - Google Patents
Info
- Publication number
- JPH0244890U JPH0244890U JP12218288U JP12218288U JPH0244890U JP H0244890 U JPH0244890 U JP H0244890U JP 12218288 U JP12218288 U JP 12218288U JP 12218288 U JP12218288 U JP 12218288U JP H0244890 U JPH0244890 U JP H0244890U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric elements
- back sides
- elements
- fan
- ultrasonic motor
- 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
- 239000002184 metal Substances 0.000 claims description 2
- 230000010287 polarization Effects 0.000 claims description 2
Description
第１図ａおよびｂは本考案による圧電素子の外
観を示す斜視図および分極方向を示す側面断面図
、第２図ａおよびｂは本考案による超音波モータ
用素子を上面および下面から見た斜視図、第３図
はその正面図、第４図ａおよびｂは従来の超音波
モータ用素子を上面および下面から見た斜視図、
第５図はその正面図である。
１……孔明き円板状圧電素子、１ａ……切欠き
、２……扇形状電極、３……環状電極、４……扇
形状圧電素子、５，６……電極、７……孔明き円
板状金属板。
Figures 1a and b are perspective views showing the appearance of the piezoelectric element according to the present invention and side sectional views showing the polarization direction, and Figures 2a and b are perspective views of the ultrasonic motor element according to the present invention seen from the top and bottom. 3 is a front view thereof, and FIGS. 4a and 4b are perspective views of a conventional ultrasonic motor element viewed from the top and bottom.
FIG. 5 is a front view thereof. DESCRIPTION OF SYMBOLS 1... Perforated disk-shaped piezoelectric element, 1a... Notch, 2... Fan-shaped electrode, 3... Annular electrode, 4... Fan-shaped piezoelectric element, 5, 6... Electrode, 7... Perforated Disc-shaped metal plate.
Claims (1)
枚の扇形状圧電素子を、相隣接する上記圧電素子
の分極方向が反転するように、また、表裏の上記
圧電素子が１／２ピツチずつずれるように貼付し
たことを特徴とする超音波モータ用素子。 A plurality of fan-shaped piezoelectric elements are placed on both the front and back sides of a thin metal plate in the form of a perforated disc, so that the polarization directions of the adjacent piezoelectric elements are reversed, and the piezoelectric elements on the front and back sides are arranged at a 1/2 pitch. An element for an ultrasonic motor, characterized in that the elements are attached so as to be offset from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12218288U JPH0244890U (en) | 1988-09-20 | 1988-09-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12218288U JPH0244890U (en) | 1988-09-20 | 1988-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0244890U true JPH0244890U (en) | 1990-03-28 |
Family
ID=31369870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12218288U Pending JPH0244890U (en) | 1988-09-20 | 1988-09-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0244890U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007036612A (en) * | 2005-07-26 | 2007-02-08 | Tdk Corp | Piezoelectric thin film resonator and manufacturing method thereof, and drive unit and piezoelectric motor using the same |
| KR20160136493A (en) * | 2015-05-19 | 2016-11-30 | 한국기계연구원 | An ultrasonic transmitter having piezoelectric element capable of transverse prevention and ultrasonic cleaning device including the same |
-
1988
- 1988-09-20 JP JP12218288U patent/JPH0244890U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007036612A (en) * | 2005-07-26 | 2007-02-08 | Tdk Corp | Piezoelectric thin film resonator and manufacturing method thereof, and drive unit and piezoelectric motor using the same |
| JP4696754B2 (en) * | 2005-07-26 | 2011-06-08 | Ｔｄｋ株式会社 | Piezoelectric thin film vibrator, method for manufacturing the same, drive device using the same, and piezoelectric motor |
| KR20160136493A (en) * | 2015-05-19 | 2016-11-30 | 한국기계연구원 | An ultrasonic transmitter having piezoelectric element capable of transverse prevention and ultrasonic cleaning device including the same |