JPH01171592U - - Google Patents
Info
- Publication number
- JPH01171592U JPH01171592U JP6633988U JP6633988U JPH01171592U JP H01171592 U JPH01171592 U JP H01171592U JP 6633988 U JP6633988 U JP 6633988U JP 6633988 U JP6633988 U JP 6633988U JP H01171592 U JPH01171592 U JP H01171592U
- Authority
- JP
- Japan
- Prior art keywords
- electrode parts
- center angle
- electrode
- piezoelectric element
- degrees
- 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
- 230000000750 progressive effect Effects 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims 1
- 230000010363 phase shift Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Description
第１図ａ，ｂは本考案に係る進行性波動モータ
の圧電素子及び電極部の配置例を示す平面図、第
２図は進行波発生の原理図の一例を示す説明図、
第３図は進行性波動モータの回転原理図の一例を
示す説明図、第４図、第５図は従来の進行性波動
モータの圧電素子の一例を示す平面図、第６図は
振動体の径と共振周波数との関係を示す説明図で
ある。
１…圧電素子、６ａ〜６ｇ…電極部、９…振動
体、１０…移動体、１２ａ〜１２ｌ…電極部。
1A and 1B are plan views showing examples of the arrangement of piezoelectric elements and electrode parts of a progressive wave motor according to the present invention, and FIG. 2 is an explanatory diagram showing an example of the principle diagram of traveling wave generation,
Fig. 3 is an explanatory diagram showing an example of the rotation principle diagram of a progressive wave motor, Figs. 4 and 5 are plan views showing an example of a piezoelectric element of a conventional progressive wave motor, and Fig. 6 is a diagram of a vibrating body. It is an explanatory view showing the relationship between diameter and resonance frequency. DESCRIPTION OF SYMBOLS 1... Piezoelectric element, 6a-6g... Electrode part, 9... Vibrating body, 10... Moving body, 12a-12l... Electrode part.
Claims (1)
素子を位置的に位相をずらして固定配置し、位相
の異なる複数の高周波電圧を印加して生ずる進行
波成分を利用することにより、振動体に加圧接触
された移動体を摩擦駆動するような進行性波動モ
ータにおいて、前記圧電素子上には各々中心角が
９０°となる３つの電極部と、中心角が４５°と
なる２つの電極部を同時に形成し、このうち中心
角９０°の電極部のうち、２つは隙間部を介して
隣り合わせになつており、中心角９０°の残りの
１つの電極部は、前記中心角９０°の２つの電極
部の両端から４５°の位置に配置されるとともに
、その両側に中心角４５°の電極部が配置された
ことを特徴とする進行性波動モータ。 A piezoelectric element with a high dielectric constant is fixedly arranged in a vibrating body part made of an elastic material with a phase shift, and a traveling wave component generated by applying multiple high-frequency voltages with different phases is applied to the vibrating body. In a progressive wave motor that frictionally drives a moving body that is brought into pressure contact, three electrode parts each having a center angle of 90° and two electrode parts each having a center angle of 45° are provided on the piezoelectric element. are formed at the same time, and two of the electrode parts with a center angle of 90° are adjacent to each other with a gap between them, and the remaining electrode part with a center angle of 90° is formed at the center angle of 90°. A progressive wave motor characterized in that the electrode parts are arranged at 45 degrees from both ends of the two electrode parts, and electrode parts having a center angle of 45 degrees are arranged on both sides of the electrode parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6633988U JPH01171592U (en) | 1988-05-19 | 1988-05-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6633988U JPH01171592U (en) | 1988-05-19 | 1988-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01171592U true JPH01171592U (en) | 1989-12-05 |
Family
ID=31291746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6633988U Pending JPH01171592U (en) | 1988-05-19 | 1988-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01171592U (en) |
-
1988
- 1988-05-19 JP JP6633988U patent/JPH01171592U/ja active Pending
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