DE20210042U1 - Piezoelectric actuator device - Google Patents

Piezoelectric actuator device

Info

Publication number
DE20210042U1
DE20210042U1 DE20210042U DE20210042U DE20210042U1 DE 20210042 U1 DE20210042 U1 DE 20210042U1 DE 20210042 U DE20210042 U DE 20210042U DE 20210042 U DE20210042 U DE 20210042U DE 20210042 U1 DE20210042 U1 DE 20210042U1
Authority
DE
Germany
Prior art keywords
actuator device
piezo
spring means
return spring
bending element
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.)
Expired - Lifetime
Application number
DE20210042U
Other languages
German (de)
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.)
Festo SE and Co KG
Original Assignee
Festo SE and Co KG
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 Festo SE and Co KG filed Critical Festo SE and Co KG
Priority to DE20210042U priority Critical patent/DE20210042U1/en
Publication of DE20210042U1 publication Critical patent/DE20210042U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/004—Actuating devices; Operating means; Releasing devices actuated by piezoelectric means
    • F16K31/005—Piezoelectric benders
    • F16K31/006—Piezoelectric benders having a free end

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Device For Special Equipments (AREA)

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (15)

1. Piezoelektrische Aktoreinrichtung, insbesondere Piezo­ ventil, mit einem Piezo-Biegeelement (4), das bei seiner Be­ tätigung ausgehend von einer Grundstellung entgegen der Kraft von Rückstell-Federmitteln (8) ausgelenkt wird, dadurch ge­ kennzeichnet, dass die Rückstell-Federmittel (8) zumindest partiell eine negative Federrate aufweisen.1. Piezoelectric actuator device, in particular piezo valve, with a piezo-bending element ( 4 ), which is deflected in its actuation starting from a basic position against the force of return spring means ( 8 ), characterized in that the return spring means ( 8 ) at least partially have a negative spring rate. 2. Aktoreinrichtung nach Anspruch 1, dadurch gekennzeich­ net, dass die Federrate der Rückstell-Federmittel (8) zumin­ dest zum Ende des möglichen Federweges hin negativ ist.2. Actuator device according to claim 1, characterized in that the spring rate of the return spring means ( 8 ) is at least negative towards the end of the possible spring travel. 3. Aktoreinrichtung nach Anspruch 1 oder 2, dadurch ge­ kennzeichnet, dass die Federrate der Rückstell-Federmittel (8) durchgehend negativ ist.3. Actuator device according to claim 1 or 2, characterized in that the spring rate of the return spring means ( 8 ) is continuously negative. 4. Aktoreinrichtung nach einem der Ansprüche 1 bis 3, ge­ kennzeichnet durch eine eine negative Steigung aufweisende lineare Federkennlinie (25) der Rückstell-Federmittel (8). 4. Actuator device according to one of claims 1 to 3, characterized by a negative slope linear spring characteristic ( 25 ) of the return spring means ( 8 ). 5. Aktoreinrichtung nach einem der Ansprüche 1 bis 3, ge­ kennzeichnet durch eine eine negative Federrate aufweisende degressive Federkennlinie (26) der Rückstell-Federmittel (8).5. Actuator device according to one of claims 1 to 3, characterized by a negative spring rate having degressive spring characteristic ( 26 ) of the return spring means ( 8 ). 6. Aktoreinrichtung nach einem der Ansprüche 1 bis 5, da­ durch gekennzeichnet, dass die Federkennlinie (25) der Rück­ stell-Federmittel (8) so ausgebildet ist, dass sie stets un­ terhalb der Kraft-Weg-Kennlinie (24) des Piezo-Biegeelementes (4) liegt.6. Actuator device according to one of claims 1 to 5, characterized in that the spring characteristic ( 25 ) of the return spring means ( 8 ) is designed such that it is always below the force-displacement characteristic ( 24 ) of the piezo Bending element ( 4 ). 7. Aktoreinrichtung nach einem der Ansprüche 1 bis 6, da­ durch gekennzeichnet, dass die Federkennlinie (25) der Rück­ stell-Federmittel (8) parallel zur Kraft-Weg-Kennlinie (24) des Piezo-Biegeelementes (4) verläuft.7. Actuator device according to one of claims 1 to 6, characterized in that the spring characteristic ( 25 ) of the return adjusting spring means ( 8 ) runs parallel to the force-displacement characteristic ( 24 ) of the piezo bending element ( 4 ). 8. Aktoreinrichtung nach einem der Ansprüche 1 bis 7, da­ durch gekennzeichnet, dass die Rückstell-Federmittel (8) von einer blattfederartig flachen Wendelfeder (28) mit Kniehe­ belcharakteristik gebildet sind.8. Actuator device according to one of claims 1 to 7, characterized in that the return spring means ( 8 ) are formed by a flat spring-like flat coil spring ( 28 ) with knee lever characteristic. 9. Aktoreinrichtung nach einem der Ansprüche 1 bis 8, ge­ kennzeichnet durch eine Ausgestaltung als Piezoventil (1), bei dem das Piezo-Biegeelement (4) einen Aktor zur Betätigung mindestens einer einer zu steuernden Ventilöffnung (13, 13a, 13b) zugeordneten Ventilschließfläche (12, 12a, 12b) bildet. 9. Actuator device according to one of claims 1 to 8, characterized by a configuration as a piezo valve ( 1 ), in which the piezo-bending element ( 4 ) has an actuator for actuating at least one valve opening to be controlled ( 13 , 13 a, 13 b) associated valve closing surface ( 12 , 12 a, 12 b) forms. 10. Aktoreinrichtung nach Anspruch 9, dadurch gekennzeich­ net, dass die Rückstell-Federmittel (8) unmittelbar an dem Piezo-Biegeelement (4) angreifen.10. Actuator device according to claim 9, characterized in that the return spring means ( 8 ) act directly on the piezo bending element ( 4 ). 11. Aktoreinrichtung nach Anspruch 9 oder 10, dadurch ge­ kennzeichnet, dass die mindestens eine Ventilschließfläche (12) unmittelbar am Piezo-Biegeelement (4) vorgesehen ist.11. Actuator device according to claim 9 or 10, characterized in that the at least one valve closing surface ( 12 ) is provided directly on the piezo bending element ( 4 ). 12. Aktoreinrichtung nach Anspruch 9 oder 10, dadurch ge­ kennzeichnet, dass die mindestens eine Ventilschließfläche (12a, 12b) an einem vom Piezo-Biegeelement (4) zu betätigen­ den beweglichen Steuerglied (17) vorgesehen ist.12. Actuator device according to claim 9 or 10, characterized in that the at least one valve closing surface ( 12 a, 12 b) is provided on a movable control member ( 17 ) to be actuated by the piezo bending element ( 4 ). 13. Aktoreinrichtung nach Anspruch 12, dadurch gekennzeich­ net, dass das Steuerglied (17) wippenartig ausgebildet ist.13. Actuator device according to claim 12, characterized in that the control member ( 17 ) is rocker-like. 14. Aktoreinrichtung nach Anspruch 13, dadurch gekennzeich­ net, dass an dem wippenartigen Steuerglied (17) beidseits der Schwenklagerstelle (18) jeweils mindestens eine Ventil­ schließfläche (12a, 12b) vorgesehen ist, wobei das Steuer­ glied (17) mit dem Piezo-Biegeelement (4) zweckmäßigerweise in beiden Verstellrichtungen bewegungsgekoppelt ist.14. Actuator device according to claim 13, characterized in that on the rocker-like control member ( 17 ) on both sides of the pivot bearing ( 18 ) in each case at least one valve closing surface ( 12 a, 12 b) is provided, the control member ( 17 ) with the piezo -Bending element ( 4 ) is expediently motion-coupled in both adjustment directions. 15. Aktoreinrichtung nach einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, dass die Rückstell-Federmittel (8) unmittelbar an dem Steuerglied (17) angreifen.15. Actuator device according to one of claims 12 to 14, characterized in that the return spring means ( 8 ) act directly on the control member ( 17 ).
DE20210042U 2002-06-28 2002-06-28 Piezoelectric actuator device Expired - Lifetime DE20210042U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20210042U DE20210042U1 (en) 2002-06-28 2002-06-28 Piezoelectric actuator device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20210042U DE20210042U1 (en) 2002-06-28 2002-06-28 Piezoelectric actuator device

Publications (1)

Publication Number Publication Date
DE20210042U1 true DE20210042U1 (en) 2002-09-26

Family

ID=7972657

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20210042U Expired - Lifetime DE20210042U1 (en) 2002-06-28 2002-06-28 Piezoelectric actuator device

Country Status (1)

Country Link
DE (1) DE20210042U1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412366B (en) * 2002-10-15 2005-01-25 Hygrama Ag VALVE
EP1640648A1 (en) * 2004-09-28 2006-03-29 FESTO AG & Co Actuator device
DE102007027900A1 (en) 2007-06-18 2008-12-24 Robert Bosch Gmbh Valve, has locking element partially covering opening section in support structure in closed condition of valve, where sectional surface of opening section amounts to specific percentage of surface of flexural element
DE102009010312B3 (en) * 2009-02-24 2010-09-09 Festo Ag & Co. Kg Bending transducer valve, has rocker including rocker body, which is supported with respect to valve housing such that rocker exerts torque on rocker body by pressure force acting on flexible membrane
CN101328987B (en) * 2007-06-21 2011-11-02 费斯托股份有限两合公司 Valve
CN103557331B (en) * 2007-06-19 2016-05-04 株式会社开滋 Use the drive unit of shaft seal mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4822959A (en) * 1988-01-25 1989-04-18 Schwab-Koplin Assoc., Inc. Electrical switch having a snap-acting switch element
DE4231734A1 (en) * 1991-09-26 1993-04-01 Fuji Electric Co Ltd PIEZOELECTRICAL DEVICE
EP0547022A1 (en) * 1991-12-11 1993-06-16 Hoerbiger Ventilwerke Aktiengesellschaft Piezo-electric valve
EP1158182A1 (en) * 2000-05-25 2001-11-28 FESTO AG & Co Valve arrangement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4822959A (en) * 1988-01-25 1989-04-18 Schwab-Koplin Assoc., Inc. Electrical switch having a snap-acting switch element
DE4231734A1 (en) * 1991-09-26 1993-04-01 Fuji Electric Co Ltd PIEZOELECTRICAL DEVICE
EP0547022A1 (en) * 1991-12-11 1993-06-16 Hoerbiger Ventilwerke Aktiengesellschaft Piezo-electric valve
EP1158182A1 (en) * 2000-05-25 2001-11-28 FESTO AG & Co Valve arrangement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 03244552 A.,In: Patent Abstracts of Japan *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412366B (en) * 2002-10-15 2005-01-25 Hygrama Ag VALVE
EP1640648A1 (en) * 2004-09-28 2006-03-29 FESTO AG & Co Actuator device
DE102007027900A1 (en) 2007-06-18 2008-12-24 Robert Bosch Gmbh Valve, has locking element partially covering opening section in support structure in closed condition of valve, where sectional surface of opening section amounts to specific percentage of surface of flexural element
CN103557331B (en) * 2007-06-19 2016-05-04 株式会社开滋 Use the drive unit of shaft seal mechanism
CN101328987B (en) * 2007-06-21 2011-11-02 费斯托股份有限两合公司 Valve
DE102009010312B3 (en) * 2009-02-24 2010-09-09 Festo Ag & Co. Kg Bending transducer valve, has rocker including rocker body, which is supported with respect to valve housing such that rocker exerts torque on rocker body by pressure force acting on flexible membrane

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Legal Events

Date Code Title Description
R163 Identified publications notified
R207 Utility model specification

Effective date: 20021031

R156 Lapse of ip right after 3 years

Effective date: 20060103