GB0115072D0 - Motors and generators using an electro-active device - Google Patents

Motors and generators using an electro-active device

Info

Publication number
GB0115072D0
GB0115072D0 GBGB0115072.1A GB0115072A GB0115072D0 GB 0115072 D0 GB0115072 D0 GB 0115072D0 GB 0115072 A GB0115072 A GB 0115072A GB 0115072 D0 GB0115072 D0 GB 0115072D0
Authority
GB
United Kingdom
Prior art keywords
electro
minor axis
around
active
active device
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.)
Granted
Application number
GBGB0115072.1A
Other versions
GB2376796B (en
GB2376796A (en
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.)
1 Ltd
Original Assignee
1 Ltd
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 1 Ltd filed Critical 1 Ltd
Priority to GB0115072A priority Critical patent/GB2376796B/en
Publication of GB0115072D0 publication Critical patent/GB0115072D0/en
Publication of GB2376796A publication Critical patent/GB2376796A/en
Application granted granted Critical
Publication of GB2376796B publication Critical patent/GB2376796B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
    • H02N2/021—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors using intermittent driving, e.g. step motors, piezoleg motors
    • H02N2/023—Inchworm motors
    • 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
    • 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
    • H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
    • 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
    • H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
    • H02N2/186—Vibration harvesters
    • 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
    • H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
    • H02N2/186—Vibration harvesters
    • H02N2/188—Vibration harvesters adapted for resonant operation
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • H10N30/2041—Beam type
    • H10N30/2042—Cantilevers, i.e. having one fixed end
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • H10N30/2041—Beam type
    • H10N30/2042—Cantilevers, i.e. having one fixed end
    • H10N30/2043—Cantilevers, i.e. having one fixed end connected at their free ends, e.g. parallelogram type

Landscapes

  • Manufacture Of Motors, Generators (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

Various types of motor and generator use an electro-active device 11 comprising an electro-active structure in the form of a continuous electro-active member 12 curving in a helix around a minor axis 13 which is in itself curved for example in a helix around a major axis 14. The continuous member 12 has a bender construction of a plurality of layers 21 and 22 including at least one layer of electro-active material so that it bends, on activation, around the minor axis 13. Concomitantly with the bending, the electro-active structure twist around the minor axis. Concomitantly with that twisting, relative displacement of the ends 16 of the device 11 occurs due to the combination of the twisting around the minor axis 13 and the fact that the minor axis 13 is curved.
GB0115072A 2001-06-20 2001-06-20 Motors and generators using an electro-active device Expired - Fee Related GB2376796B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0115072A GB2376796B (en) 2001-06-20 2001-06-20 Motors and generators using an electro-active device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0115072A GB2376796B (en) 2001-06-20 2001-06-20 Motors and generators using an electro-active device

Publications (3)

Publication Number Publication Date
GB0115072D0 true GB0115072D0 (en) 2001-08-15
GB2376796A GB2376796A (en) 2002-12-24
GB2376796B GB2376796B (en) 2004-12-15

Family

ID=9916998

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0115072A Expired - Fee Related GB2376796B (en) 2001-06-20 2001-06-20 Motors and generators using an electro-active device

Country Status (1)

Country Link
GB (1) GB2376796B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113179046A (en) * 2021-04-28 2021-07-27 长春工业大学 Piezoelectric power generation device based on water flow impact

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008001405A1 (en) * 2008-04-28 2009-10-29 Robert Bosch Gmbh Piezoelectric drive device, and method for operating such
DE102011080120A1 (en) * 2011-07-29 2013-01-31 Robert Bosch Gmbh Flexible structure for generating electrical energy from wave motion
US10514019B2 (en) 2016-07-26 2019-12-24 Gaynor Dayson Floating piezoelectric assembly for generating energy from waves
CN106100446B (en) * 2016-07-29 2018-06-29 哈尔滨工业大学 A kind of Wave power generation device based on nucleocapsid PVDF arrays

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900748A (en) * 1972-01-31 1975-08-19 Zenith Radio Corp Torsional ceramic transducer
CN2369412Y (en) * 1997-02-04 2000-03-15 焦秉立 Curved piezoelectric vibrator
GB2376834B (en) * 1999-12-21 2003-06-25 1 Ltd Loudspeaker using an electro-active device
GB2375884B (en) * 2001-05-23 2005-01-05 1 Ltd Electro-active devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113179046A (en) * 2021-04-28 2021-07-27 长春工业大学 Piezoelectric power generation device based on water flow impact
CN113179046B (en) * 2021-04-28 2022-06-17 长春工业大学 Piezoelectric power generation device based on water flow impact

Also Published As

Publication number Publication date
GB2376796B (en) 2004-12-15
GB2376796A (en) 2002-12-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20110620