CH680487GA3 - - Google Patents

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Publication number
CH680487GA3
CH680487GA3 CH94991A CH94991A CH680487GA3 CH 680487G A3 CH680487G A3 CH 680487GA3 CH 94991 A CH94991 A CH 94991A CH 94991 A CH94991 A CH 94991A CH 680487G A3 CH680487G A3 CH 680487GA3
Authority
CH
Switzerland
Prior art keywords
stator
rotor
plate
edges
waves
Prior art date
Application number
CH94991A
Other languages
French (fr)
Other versions
CH680487B5 (en
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 filed Critical
Priority to CH949/91A priority Critical patent/CH680487B5/fr
Priority to EP92104360A priority patent/EP0505848B1/en
Priority to DE69204332T priority patent/DE69204332T2/en
Priority to JP4091492A priority patent/JP2905835B2/en
Priority to KR1019920004728A priority patent/KR100236492B1/en
Priority to US07/855,922 priority patent/US5296776A/en
Priority to CN92102163A priority patent/CN1029344C/en
Priority to TW081104953A priority patent/TW223194B/zh
Publication of CH680487GA3 publication Critical patent/CH680487GA3/fr
Publication of CH680487B5 publication Critical patent/CH680487B5/fr

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
    • H02N2/103—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors by pressing one or more vibrators against the rotor
    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/12—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by piezoelectric means; driven by magneto-strictive means
    • 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
    • H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
    • H02N2/001—Driving devices, e.g. vibrators
    • 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
    • H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
    • H02N2/0075—Electrical details, e.g. drive or control circuits or methods
    • H02N2/0085—Leads; Wiring arrangements

Landscapes

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

Abstract

This motor of the piezo-electric type comprises a stator (1) and a rotor (15) intended to effect relative movement to one another. The stator (1) comprises a plate (17) of generally planar form and means for generating therein vibratory waves at an ultrasonic frequency. Such waves enable the imparting of an elliptic motion to at least one active point (17c) on the periphery of the plate in the plane of the latter, said active point being in engagement with a motion transmission surface (22) of the rotor (15) in order to bring about movement of the rotor (15) relative to the stator (1) by virtue of the elliptic motion. The plate (17) of generally planar form includes a central circular portion (17a), to one of the faces of which are attached the means for generating the vibratory waves. From this central portion extend at least two lobes (17b) on the edges (17d) of which are arranged said active points (17c). The lateral edges (17d, 17e) of lobes (17b) are profiled so as to concentrate the vibratory energy emanating from the central portion (17a) within the active points (17c). Thus one of these edges preferably exhibits an elliptical profile. The invention is applicable to motors intended to furnish a low couple with a high yield, in particular in the horological domain.
CH949/91A 1991-03-28 1991-03-28 CH680487B5 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CH949/91A CH680487B5 (en) 1991-03-28 1991-03-28
EP92104360A EP0505848B1 (en) 1991-03-28 1992-03-13 Piezo-electric motor, in particular for timepiece
DE69204332T DE69204332T2 (en) 1991-03-28 1992-03-13 Piezoelectric motor, especially for timing devices.
JP4091492A JP2905835B2 (en) 1991-03-28 1992-03-18 Piezoelectric motor for watch
KR1019920004728A KR100236492B1 (en) 1991-03-28 1992-03-23 Piezo-electric motor intended for a timepiece
US07/855,922 US5296776A (en) 1991-03-28 1992-03-23 Piezo-electric motor intended for a timepiece
CN92102163A CN1029344C (en) 1991-03-28 1992-03-24 Piezo-electric motor intended for timepiece
TW081104953A TW223194B (en) 1991-03-28 1992-06-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH949/91A CH680487B5 (en) 1991-03-28 1991-03-28

Publications (2)

Publication Number Publication Date
CH680487GA3 true CH680487GA3 (en) 1992-09-15
CH680487B5 CH680487B5 (en) 1993-03-15

Family

ID=4198922

Family Applications (1)

Application Number Title Priority Date Filing Date
CH949/91A CH680487B5 (en) 1991-03-28 1991-03-28

Country Status (8)

Country Link
US (1) US5296776A (en)
EP (1) EP0505848B1 (en)
JP (1) JP2905835B2 (en)
KR (1) KR100236492B1 (en)
CN (1) CN1029344C (en)
CH (1) CH680487B5 (en)
DE (1) DE69204332T2 (en)
TW (1) TW223194B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH686854B5 (en) * 1994-12-29 1997-01-31 Ebauchesfabrik Eta Ag Piezoelectric motor with means giving information on the rotor position and / or speed delivers.
WO1998043306A1 (en) * 1997-03-21 1998-10-01 The Penn State Research Foundation Ultrasonic motor
JP2002354853A (en) * 1997-08-04 2002-12-06 Seiko Epson Corp Actuator, clock and alarm device using the same
CN1241322A (en) * 1997-08-04 2000-01-12 精工爱普生株式会社 Transmissions and clocks and notification devices using the same
US6069419A (en) * 1998-06-16 2000-05-30 Tabib-Azar; Massood Micro-actuator assembly
DE50014572D1 (en) * 1999-11-29 2007-09-27 Miniswys Sa PIEZOELECTRIC DRIVE
JP4613006B2 (en) * 2001-06-06 2011-01-12 ミニスイス・ソシエテ・アノニム Piezoelectric drive
JP4669222B2 (en) * 2001-10-22 2011-04-13 ミニスイス・ソシエテ・アノニム Piezoelectric drive
ATE335302T1 (en) * 2002-03-15 2006-08-15 Miniswys Sa PIEZOELECTRIC MOTOR AND METHOD FOR DRIVING THE SAME
JP2007116757A (en) * 2005-10-18 2007-05-10 Pentax Corp Ultrasonic motor
US10355623B1 (en) 2006-12-07 2019-07-16 Dmitriy Yavid Generator employing piezolectric and resonating elements with synchronized heat delivery
US9590534B1 (en) 2006-12-07 2017-03-07 Dmitriy Yavid Generator employing piezoelectric and resonating elements
US7696673B1 (en) 2006-12-07 2010-04-13 Dmitriy Yavid Piezoelectric generators, motor and transformers
EP4198648A1 (en) * 2021-12-20 2023-06-21 The Swatch Group Research and Development Ltd Rotating piezoelectric motor, in particular for timepieces

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3595007A (en) * 1969-08-29 1971-07-27 Hb Eng Corp Resonator-driven timepiece
GB2044014A (en) * 1979-03-08 1980-10-08 Sp P Konstrukt I Tekhnolog Bju Piezoelectric vibration motor
SU817816A1 (en) * 1979-05-30 1981-03-30 Каунасский Политехнический Институтим. Ahtahaca Снечкуса Vibromotor
SU817815A1 (en) * 1979-05-30 1981-03-30 Каунасский Политехнический Институтим. Ahtahaca Снечкуса Vibromotor
SU968868A1 (en) * 1981-04-23 1982-10-23 Каунасский Политехнический Институт Им.Антанаса Снечкуса Vibromotor
AT384912B (en) * 1982-04-16 1988-01-25 Ki Polt I PIEZOELECTRIC MOTOR
US4742260A (en) * 1986-02-06 1988-05-03 Hiroshi Shimizu Piezoelectrically driving device
JPH0648910B2 (en) * 1987-02-12 1994-06-22 日本電気株式会社 Piezoelectric motor
JPH01502384A (en) * 1987-02-28 1989-08-17 キエフスキ　ポリテクニチェスキ　インスチテュート　イメニ　５０―レティア　ヴェリコイ　オクチャブルスコイ　ソツイアリスチチェスコイ　レヴォリューツイイ piezoelectric motor

Also Published As

Publication number Publication date
JPH06225551A (en) 1994-08-12
CN1029344C (en) 1995-07-12
US5296776A (en) 1994-03-22
KR920019056A (en) 1992-10-22
CN1065361A (en) 1992-10-14
DE69204332T2 (en) 1996-04-25
EP0505848B1 (en) 1995-08-30
EP0505848A1 (en) 1992-09-30
CH680487B5 (en) 1993-03-15
JP2905835B2 (en) 1999-06-14
TW223194B (en) 1994-05-01
KR100236492B1 (en) 2000-01-15
DE69204332D1 (en) 1995-10-05

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Legal Events

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PL Patent ceased