JPS631378A - Stator support for surface wave motor - Google Patents

Stator support for surface wave motor

Info

Publication number
JPS631378A
JPS631378A JP60040612A JP4061285A JPS631378A JP S631378 A JPS631378 A JP S631378A JP 60040612 A JP60040612 A JP 60040612A JP 4061285 A JP4061285 A JP 4061285A JP S631378 A JPS631378 A JP S631378A
Authority
JP
Japan
Prior art keywords
stator
support
surface wave
wave motor
supported
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
Application number
JP60040612A
Other languages
Japanese (ja)
Inventor
Toshio Sashita
年生 指田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shinsei Industries Co Ltd
Shinsei Kogyo KK
Original Assignee
Shinsei Industries Co Ltd
Shinsei Kogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shinsei Industries Co Ltd, Shinsei Kogyo KK filed Critical Shinsei Industries Co Ltd
Priority to JP60040612A priority Critical patent/JPS631378A/en
Publication of JPS631378A publication Critical patent/JPS631378A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
    • H02N2/16—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors using travelling waves, i.e. Rayleigh surface waves
    • H02N2/163—Motors with ring stator

Landscapes

  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

PURPOSE:To transmit a vibration energy in high efficiency by composing a support of an elastic material, and supporting the neutral surface of a stator by the support to support the stator with low loss. CONSTITUTION:A surface wave combined with lateral and longitudinal waves generated by a piezoelectric unit 2 is formed and propagated to a stator 3. The number of vibration of the stator 3 and the bending intrinsic vibration frequency of a support 4 are equalized or approximated, and the stator 3 is supported by the support 4 at the neutral surface 3a of the stator. A rotor/ moving element 30 is contacted with the stator 3 to be moved by the propagation of the surface wave.

Description

【発明の詳細な説明】 〈従来技術の問題点及び発明の目的〉 圧電体の曲げ振動（超音波振動）を利用する表面波モー
タ及び超音波モータ装置について本出願人より開示さて
ているが，従来の固定子の支持体はスプリングまたは音
響絶縁体（フェルト等）であるが、固定子の振動系を損
なわずに支持させるのが困難であった． 本発明の支持体によれば、各種の表面波モータの構造に
最適で、固定子を低損失で支持することが可能となり、
振動エネルギを高効率で伝達することが出来る． 〈原理及びその効果》 そこで、図面を参照しながら、本発明に係る原理及びそ
の効果につき、以下に説明する．第１図は動作原理を示
しており、圧電体２により発生した横波と縦波で合成さ
れた表面波（屈曲波）が固定子３に形成され，伝搬して
いる状態である． 本発明において，固定子のねじり固有振動については、
詳細に言及していないが、固定子の一部分を支持するこ
とで、ねじり固有振動による損失を減少させる． 固定子の振動数と支持体４の曲げ固有振動数を同一また
は近似にし、固定子中立面３ａにて支持することにより
固定子の振動エネルギの損失を最小に押えられるので、
モータ効率が高効率で振動エネルギの伝達を行なうこと
が出来る．第２、第３及び第４図は、表面波モータの実
施例で支持体８によって固定子７の外周中立面７ａの一
部分を支持している場合を示す．第５、第６及び第７図
は、表面波モータの実施例で支持体１２によって固定子
１１の外周中立面１１ａの一部分を支持している場合を
示す．第８図は表面波モータの実施例で支持体ｌ６によ
って固定子１５の圧電体中立面１５ａの一部分を支持し
ている場合を示す．[Detailed Description of the Invention] <Problems of the Prior Art and Objectives of the Invention> The present applicant has disclosed a surface wave motor and an ultrasonic motor device that utilize bending vibration (ultrasonic vibration) of a piezoelectric body. Conventional stator supports are springs or acoustic insulators (such as felt), but it has been difficult to support them without damaging the stator's vibration system. According to the support body of the present invention, it is optimal for the structure of various surface wave motors, and it is possible to support the stator with low loss.
It can transmit vibration energy with high efficiency. <Principle and its effects> The principle and effects of the present invention will be explained below with reference to the drawings. Figure 1 shows the operating principle, in which a surface wave (bending wave) composed of a transverse wave and a longitudinal wave generated by the piezoelectric body 2 is formed in the stator 3 and is propagating. In the present invention, regarding the torsional natural vibration of the stator,
Although not mentioned in detail, by supporting a portion of the stator, losses due to natural torsional vibrations are reduced. By making the frequency of the stator and the bending natural frequency of the support body 4 the same or similar, and supporting the stator at the neutral plane 3a, the loss of vibration energy of the stator can be minimized.
The motor is highly efficient and can transmit vibration energy. 2, 3, and 4 show an example of a surface wave motor in which a part of the outer circumferential neutral surface 7a of the stator 7 is supported by the support 8. 5, 6, and 7 show an example of a surface wave motor in which a part of the outer circumferential neutral surface 11a of the stator 11 is supported by the support 12. FIG. 8 shows an embodiment of a surface wave motor in which a part of the piezoelectric neutral surface 15a of the stator 15 is supported by a support l6.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の動作原理の拡大説明図、第２図から第
８図までは本発明の実施例を示す説明図である． ５、９、１３−一一　届曲振動体 ６、１０、１４−一一　圧電体 ４、８、１２、１６、一一一　支持体 ３０　一一一　回転子／移動子゛ 図面の浄ｖ！（内容に変更なし） 第２図 第３図 第４図 第５図 第６図 第７図 第８図 第９図 手続補正書（方式） 昭和６０年９月１１日FIG. 1 is an enlarged explanatory diagram of the operating principle of the present invention, and FIGS. 2 to 8 are explanatory diagrams showing embodiments of the present invention. 5, 9, 13-11 Transmission vibration body 6, 10, 14-11 Piezoelectric body 4, 8, 12, 16, 111 Support body 30 111 Rotor/mover - Cleaning of the drawing v! (No change in content) Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Procedural amendment (method) September 11, 1985

Claims (1)

【特許請求の範囲】 １　横波と縦波が合成された表面波を発生させる固定子
（圧電体を固着してある）とその支持体において、 該支持体が該固定子の曲げ振動と、同一又 は近似する弾性体となっており、 該固定子の中立面にてその一部分を支持す ることを特徴とする表面波モータの固定子支持体。 ２　固定子の支持を外周中立面の一部分にて行なうこと
を特徴とする特許請求の範囲第１項に記載の表面波モー
タの固定子支持体。 ３　固定子の支持を内周中立面の一部分にて行なうこと
を特徴とする特許請求の範囲第１項に記載の表面波モー
タの固定子支持体。 ４　固定子の支持を圧電体側中立面の一部分にて行なう
ことを特徴とする特許請求の範囲第１項に記載の表面波
モータの固定子支持体。[Claims] 1. In a stator (on which a piezoelectric material is fixed) and its support that generate a surface wave that is a combination of transverse waves and longitudinal waves, the support has the same effect as the bending vibration of the stator. A stator support for a surface wave motor, characterized in that the stator support is made of an elastic body similar to or similar to the above, and supports a portion of the stator at a neutral plane of the stator. 2. A stator support for a surface wave motor according to claim 1, wherein the stator is supported by a portion of the outer peripheral neutral plane. 3. A stator support for a surface wave motor according to claim 1, wherein the stator is supported by a portion of the inner peripheral neutral plane. 4. A stator support for a surface wave motor according to claim 1, wherein the stator is supported by a part of the neutral plane on the piezoelectric body side.
JP60040612A 1985-03-01 1985-03-01 Stator support for surface wave motor Pending JPS631378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60040612A JPS631378A (en) 1985-03-01 1985-03-01 Stator support for surface wave motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60040612A JPS631378A (en) 1985-03-01 1985-03-01 Stator support for surface wave motor

Publications (1)

Publication Number Publication Date
JPS631378A true JPS631378A (en) 1988-01-06

Family

ID=12585349

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60040612A Pending JPS631378A (en) 1985-03-01 1985-03-01 Stator support for surface wave motor

Country Status (1)

Country Link
JP (1) JPS631378A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62193577A (en) * 1986-02-20 1987-08-25 Matsushita Electric Ind Co Ltd Ultrasonic motor
JPH02142992U (en) * 1989-04-28 1990-12-04

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59213286A (en) * 1983-05-14 1984-12-03 Shinsei Kogyo:Kk Stator support of surface wave motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59213286A (en) * 1983-05-14 1984-12-03 Shinsei Kogyo:Kk Stator support of surface wave motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62193577A (en) * 1986-02-20 1987-08-25 Matsushita Electric Ind Co Ltd Ultrasonic motor
JPH02142992U (en) * 1989-04-28 1990-12-04

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