JPH03124792U - - Google Patents
Info
- Publication number
- JPH03124792U JPH03124792U JP3327090U JP3327090U JPH03124792U JP H03124792 U JPH03124792 U JP H03124792U JP 3327090 U JP3327090 U JP 3327090U JP 3327090 U JP3327090 U JP 3327090U JP H03124792 U JPH03124792 U JP H03124792U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric element
- ultrasonic motor
- vibrating body
- electrode patterns
- rotor
- 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
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Description
第１図は本考案による超音波モータの圧電素子
の電極パターンを示す平面図、第２図は従来の超
音波モータの圧電素子の電極パターンを示す平面
図、第３図及び第４図は本考案による超音波モー
タの圧電素子の電極パターンのその他の実施例を
示す平面図である。
１……圧電素子、２……リード線、１０１〜１
１２……電極パターン。
Fig. 1 is a plan view showing the electrode pattern of the piezoelectric element of the ultrasonic motor according to the present invention, Fig. 2 is a plan view showing the electrode pattern of the piezoelectric element of the conventional ultrasonic motor, and Figs. FIG. 7 is a plan view showing another embodiment of the electrode pattern of the piezoelectric element of the ultrasonic motor according to the invention. 1...Piezoelectric element, 2...Lead wire, 101-1
12... Electrode pattern.
Claims (1)
該振動体に圧接され、前記圧電素子の押縮運動に
よるたわみ進行波で摩擦駆動するロータとを有す
る超音波モータにおいて、前記圧電素子は中心穴
を有して円形状に形成すると共に、前記圧電素子
の一平面に分極処理された複数の扇形の電極パタ
ーンを形成し、少なくとも隣接する１組の電極パ
ターンそれぞれの内周付近に、周方向くびれ形状
を設けたことを特徴とする超音波モータの圧電素
子電極構造。 a piezoelectric element, a vibrating body joined to the piezoelectric element,
In an ultrasonic motor having a rotor that is in pressure contact with the vibrating body and is frictionally driven by a flexure traveling wave caused by a pressing motion of the piezoelectric element, the piezoelectric element is formed in a circular shape with a center hole, and the piezoelectric element An ultrasonic motor characterized in that a plurality of polarized fan-shaped electrode patterns are formed on one plane of an element, and a circumferentially constricted shape is provided near the inner periphery of each of at least one set of adjacent electrode patterns. Piezoelectric element electrode structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3327090U JPH03124792U (en) | 1990-03-29 | 1990-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3327090U JPH03124792U (en) | 1990-03-29 | 1990-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03124792U true JPH03124792U (en) | 1991-12-17 |
Family
ID=31536804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3327090U Pending JPH03124792U (en) | 1990-03-29 | 1990-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03124792U (en) |
-
1990
- 1990-03-29 JP JP3327090U patent/JPH03124792U/ja active Pending