EP1127221B1 - Procede et dispositif destines a alimenter en energie electrique des dispositifs consommateurs d'electricite situes dans un appareil pneumatique ou associes a ce dernier - Google Patents

Procede et dispositif destines a alimenter en energie electrique des dispositifs consommateurs d'electricite situes dans un appareil pneumatique ou associes a ce dernier Download PDF

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Publication number
EP1127221B1
EP1127221B1 EP00960546A EP00960546A EP1127221B1 EP 1127221 B1 EP1127221 B1 EP 1127221B1 EP 00960546 A EP00960546 A EP 00960546A EP 00960546 A EP00960546 A EP 00960546A EP 1127221 B1 EP1127221 B1 EP 1127221B1
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EP
European Patent Office
Prior art keywords
pneumatic
control
converter
signals
pressure
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Expired - Lifetime
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EP00960546A
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German (de)
English (en)
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EP1127221A1 (fr
Inventor
Peter Christiani
Dieter Staniczek
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Festo SE and Co KG
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Festo SE and Co KG
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Application filed by Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP1127221A1 publication Critical patent/EP1127221A1/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0396—Involving pressure control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87217—Motor

Definitions

  • the invention relates to a method and an apparatus for Supply of electrical consumers in or on a pneumatic device with electrical supply energy, wherein the pneumatic device via a pneumatic Line is connected to a pressure source.
  • Pneumatic devices to be controlled need to one the supply of compressed air via a pneumatic Line and other electrical supply lines to Supply of electrical supply energy and electrical Control signals and, if necessary, feedback lines for Feedback of sensor signals.
  • a pneumatic Device several control devices, such as valves, and several sensors arranged, the increases accordingly Number of electrical wires, often leading to one confusing line arrangement and at high cost for performs the installation, maintenance and repair.
  • the advantage of the device according to the invention is in particular in that about the already existing pneumatiche Line also for electrical consumers in the pneumatic device required supply energy is transmitted so that related lines are omitted can.
  • the transmission takes place via the gaseous Medium or the line by means of sound waves, microwaves, Pressure changes or by means of the flow energy of the pressurized gaseous medium. For this reason it is Energy transfer also with the usually existing Plastic lines possible.
  • the conversion to electrical Supply energy takes place directly on or in the pneumatic device.
  • the pneumatic Device of pressure of the gaseous medium in the pneumatic Cable for driving a microturbine with electrical Generator used that is, the flow energy of the pressurized gaseous medium is directly in or on the pneumatic device in electrical Supply energy implemented.
  • the Sound waves or pressure changes using the piezo effect or capacitive or inductive implementation processes at least partially in electrical supply energy in the pneumatic device implemented.
  • a piezoelectric, capacitive or inductive Converter or a piston oscillator arrangement is expediently used.
  • Such a A converter or a piston oscillator arrangement is preferred also in a via the pneumatic line with the pneumatic Device connected control and / or data receiving device to convert electrical energy into sound waves to be supplied to the pneumatic line or Pressure changes provided.
  • the transmission of also takes place in an advantageous manner Control and / or sensor signals between the electronic Control and / or data receiving device and the pneumatic Device via the pneumatic line by means of Sound signals, microwaves or pressure changes.
  • Sound signals, microwaves or pressure changes are preferably different frequencies and / or Signal sequences and / or modulations and / or pressure pulse sequences provided, the transmission in particular bidirectional takes place so that sensor signals can also be reported.
  • Control and / or data receiving device and the pneumatic Device with at least a first converter Conversion of electrical signals into sound signals or Pressure changes and with at least a second converter Conversion of sound signals or pressure changes into provide electrical signals.
  • a first converter and a second converter also designed as a combined bidirectional converter can be.
  • the following are particularly suitable for implementation piezoelectric, but also inductive or capacitive Converter.
  • the converters for supplying energy supply can advantageously identical to the converters for Conversion between sound signals or pressure changes and electrical control and / or sensor signals, because by performing these double functions a more optimal Exploitation is possible.
  • the transmission of Control and / or sensor signals between the electronic Control and / or data receiving device and the pneumatic Device also wireless, in particular by radio or Infrared signals, or via an in or on the pneumatic line arranged or integrated Light guides are made.
  • the tax and / or Data receiving device and the at least one pneumatic device expediently each with a Light transmitter and / or a light receiver provided.
  • a storage device especially a capacitor or a Storage cell, for storing in or on the pneumatic Device generated electrical supply energy intended.
  • a converter in particular designed as a microcomputer in or on the pneumatic device is used advantageously Way of converting the transmitted signals into control signals for at least one control device, for example a Valve, in the pneumatic device and / or for Conversion of sensor signals into signals to be transmitted.
  • the control and / or data receiving device is preferred designed as a bus station connected to a data bus.
  • Several pneumatic can be connected to this bus station Devices directly or via pneumatic lines Branches are connected.
  • the at least one converter and the means for providing it of electrical supply energy are expedient integrated in the pneumatic device, so that there are compact arrangements for complete Installation only via a single pneumatic line must be connected.
  • Invention is a pneumatic cylinder 10 via an electrical Data bus 11, for example a field bus, controlled.
  • a pneumatic pressure source 12 is via a z. B. from flexible plastic material existing pneumatic line 13 connected to the pneumatic cylinder 10.
  • In a face Area of the housing 14 of the pneumatic cylinder 10 are two valves 15, 16 integrated, for example as 3/2-way valves are formed. Alternatively, you could for example, a 4/3-way valve.
  • the two Valves 15, 16 are each on the one hand with the pneumatic Line 13 and a ventilation channel 17 and on the other each with one of two cylinder chambers 18, 19 to both Sides of a movable piston 20 connected.
  • Electrical control signals for the valves 15, 16 are over the data bus 11 of an electronic control and data receiving device 21 forwarded.
  • This contains one to the Data bus 11 connected bus station 22, which has a bidirectional converter 23 with the pneumatic line 13 connected is.
  • the bidirectional converter 23 is for example trained as a piezo transducer and sets the supplied electrical signals into corresponding sound signals or Sound vibrations around in the gaseous medium in the Spread line 13 and finally a corresponding one bidirectional converter 24 in the pneumatic cylinder 10 reach where they in turn are translated into appropriate signals become.
  • the transmission of the in the electrical signals contained data is done either over different Frequencies that can range up to ultrasound frequencies which can also be modulated or via sound signal sequences or corresponding pressure changes or pressure surges in the gaseous medium. Alternatively, the transfer also take place, for example, via microwaves also spread in the gaseous medium, then appropriate microwave converters are required.
  • the electrical generated by the bidirectional converter 24 Signals are fed to a microcomputer 25 in the housing 14, where they are decoded and depending on the decoding into corresponding Control signals for the two valves 15, 16 converted become.
  • a storage device 27 which is designed, for example, as a capacitor.
  • a storage device 27 is a permanent power supply guaranteed, even when there are no signals on the Line 13 arrive or a short-term increased current or There is an energy requirement.
  • a storage device 27 can also be dispensed with.
  • valves 15, 16 for example as multi-pilot valve arrangements, especially when using piezo valves.
  • the sensors Sensor signals from the controller must be reported back.
  • the corresponding information is digitized there and via the data bus 11 of a master station, not shown supplied, which can be, for example, a PC.
  • microcomputer 25 can of course also another decoding and coding device occur.
  • the converter 24, the microcomputer 25, the rectifier arrangement 26 and the storage device 27 in the housing 14 of the Pneumatic cylinders 10 are in a control and data transmission device 30 summarized, for example as a unit that can be used as a whole or can be attached externally can be trained.
  • Data transmission over line 13 in both opposite directions can be, for example, within fixed time window or according to the principle of a variable master-slave system. Even the generation of the Supply energy can alternate, for example Data transmission takes place in time windows, or else Energy storage takes place in the storage device 27 each during periods when there is no data transmission takes place, which can be controlled by the microcomputer 25. As an alternative to this, a part of the electrical can be used continuously Signals for energy supply are used.
  • control and Data transmission device 31 shows an alternative embodiment of a control and Data transmission device 31 is provided instead the control and data transmission device 30 can occur.
  • the same or equivalent components or assemblies are included provided the same reference numerals and not described again.
  • the supply energy is not from here transmitted sound signals or pressure changes in the gaseous Medium won, but the pressure in the gaseous Medium is used to drive a microturbine 32 with the attached one or integrated micro-generator used. Since line 13 is constantly pressurized, this supply energy are constantly generated so that on a storage device can be dispensed with, which of course nevertheless can be provided.
  • the one generated by the microturbine 32 electrical energy is in a voltage conditioning circuit 33 processes and supplies the microcomputer 25 and a downstream driver stage 34 for controlling the Valves 15, 16. Such a driver stage 34 can of course also in the control and data transmission device 30 may be provided.
  • microturbine 32 instead of the microturbine 32, another micromechanical one can also be used System for generating electrical energy for example a piston oscillator arrangement.
  • the system shown in Fig. 3 is used to operate three Pneumatic cylinders 10, 40, 70.
  • the control and data receiving device 21 and the pneumatic cylinder 10 with its control and Data transmission device 30 and its valves 15, 16 correspond to the arrangement according to FIG. 1 (or FIG. 2).
  • the pneumatic cylinders 40, 70 have the valves 15, 16 corresponding Valves 45, 46 and 75, 76 on. In this way, the Extend overall arrangement as desired.
  • pneumatic cylinders shown in the exemplary embodiments 10, 40, 70 are only shown as examples. Instead of or in addition to these pneumatic cylinders other pneumatic devices such as valve terminals, pneumatic drives, maintenance devices, or even pure Sensor arrangements occur in which only sensor feedback done, but no control signals supplied become.
  • the data transmission described for transmission of control and / or sensor signals via the at least one pneumatic line 13, 43, 73 can transfer this data also take place wirelessly, for example by radio or Infrared signals, or via an in or on the pneumatic Line 13, 43, 73 arranged or integrated light guide.
  • Corresponding transmitters and / or receivers are in this case in the electronic control and / or data receiving device 21, 51, 81 and in the pneumatic device 10, 40, 70 included.
  • light guides for example the light transmitter and / or light receiver each arranged at the connection points of the pneumatic line.

Claims (26)

  1. Procédé pour l'alimentation en énergie électrique d'alimentation de consommateurs d'électricité dans ou sur un dispositif pneumatique, où le dispositif pneumatique est raccordé à une source de pression via une ligne pneumatique, caractérisé en ce que le transport de l'énergie vers le dispositif pneumatique (10 ; 40 ; 70) s'effectue via la ligne pneumatique (13 ; 43 ; 73) à l'aide d'ondes acoustiques, de micro-ondes, de modifications de pression ou d'un flux de gaz dans la ligne pneumatique (13 ; 43 ; 73), et en ce que la conversion de cette énergie transportée en énergie électrique d'alimentation s'effectue dans ou sur le dispositif pneumatique (10 ; 40 ; 70).
  2. Procédé selon la revendication 1, caractérisé en ce que dans le dispositif pneumatique (10), la pression de l'agent gazeux est utilisée dans la ligne pneumatique (13 ; 43 ; 73) pour l'entraínement d'une microturbine (32).
  3. Procédé selon la revendication 1, caractérisé en ce que les ondes acoustiques ou les modifications de pression dans le dispositif pneumatique (10) sont au moins partiellement converties en énergie électrique d'alimentation à l'aide de l'effet piézoélectrique ou de procédés de conversion capacitifs ou inductifs.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que la transmission de signaux de commande et/ou de détection entre un dispositif électronique de commande et/ou de réception des données (21 ; 51 ; 81) et le dispositif pneumatique (10 ; 40 ; 70) s'effectue via la ligne pneumatique à l'aide de signaux acoustiques, de micro-ondes ou de modifications de pression.
  5. Procédé selon la revendication 4, caractérisé en ce que pour la transmission de différents signaux de commande ou de détection, différentes fréquences et/ou successions de signaux et/ou modulations et/ou successions d'impulsions de pression sont prévues.
  6. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la transmission de signaux de commande et/ou de détection entre un dispositif électronique de commande et/ou de réception de données (21 ; 51 ; 81) et le dispositif pneumatique (10 ; 40 ; 70) s'effectue sans fil, en particulier à l'aide de signaux radio ou infrarouges, ou via un conducteur optique disposé ou intégré dans ou sur une ligne pneumatique.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que la transmission s'effectue de manière bidirectionnelle.
  8. Dispositif pneumatique avec un dispositif pour l'alimentation en énergie électrique d'alimentation de consommateurs d'électricité dans ou sur le dispositif pneumatique, où le dispositif pneumatique est raccordé à une source de pression via une ligne pneumatique, caractérisé en ce que des moyens sont prévus dans le dispositif pneumatique (10 ; 40 ; 70) pour la conversion d'énergie transmise via la ligne pneumatique à l'aide d'ondes acoustiques, de micro-ondes, de modifications de pression ou de l'énergie d'écoulement de l'agent gazeux, en énergie électrique d'alimentation.
  9. Dispositif selon la revendication 8, caractérisé en ce que pour la conversion d'ondes acoustiques ou de modifications de pression en énergie électrique d'alimentation, un convertisseur (24) piézoélectrique, capacitif ou inductif ou un dispositif oscillateur à piston, est prévu.
  10. Dispositif selon la revendication 9, caractérisé en ce que dans un dispositif électronique de commande et/ou de réception de données raccordé via la ligne pneumatique (13 ; 43 ; 73) au dispositif pneumatique (10 ; 40 ; 70), un convertisseur (23) piézoélectrique, capacitif ou inductif ou un dispositif oscillateur à piston est également prévu pour la conversion en énergie électrique d'ondes acoustiques ou de modifications de pression devant amener de l'énergie électrique dans la ligne pneumatique.
  11. Dispositif selon la revendication 8, caractérisé en ce que pour la conversion de l'énergie d'écoulement de l'agent gazeux sous pression en énergie électrique d'alimentation, une microturbine (32) avec un générateur électrique est prévue dans ou sur le dispositif pneumatique (10 ; 40 ; 70).
  12. Dispositif selon l'une des revendications 8 à 11, caractérisé en ce qu'un dispositif de stockage (27), en particulier un condensateur ou un dispositif à cellules de mémoire est prévu pour le stockage de l'énergie électrique d'alimentation produite dans ou sur le dispositif pneumatique (10 ; 40 ; 70).
  13. Dispositif selon l'une des revendications 8 à 12, caractérisé en ce que pour la transmission de signaux de commande et/ou de détection entre un dispositif électronique de commande et/ou de réception de données (21 ; 51 ; 81) et le dispositif pneumatique (10 ; 40 ; 70) via la ligne pneumatique (13 ; 43 ; 73) à l'aide de signaux acoustiques, de micro-ondes ou de modifications de pression dans l'agent gazeux de la ligne (13 ; 43 ; 73), le dispositif de commande et/ou de réception de données (21 ; 51 ; 81) et les dispositifs pneumatiques (10 ; 40 ; 70) sont pourvus d'au moins un premier convertisseur (23) pour la conversion de signaux électriques en signaux acoustiques ou en modifications de pression, et avec au moins un deuxième convertisseur (24) pour la conversion des signaux acoustiques ou des modifications de pression en signaux électriques.
  14. Dispositif selon la revendication 13, caractérisé en ce que le dispositif de commande et/ou de réception de données (21 ; 51 ; 81) est pourvu d'un premier convertisseur (23), et le dispositif pneumatique (10 ; 40 ; 70) d'un deuxième convertisseur (24).
  15. Dispositif selon la revendication 13, caractérisé en ce que pour la transmission bidirectionnelle des données, le dispositif de commande et/ou de réception de données (21 ; 51 ; 81) tout comme également le dispositif pneumatique (10 ; 40 ; 70) sont pourvus avec les deux types de convertisseurs (23, 24).
  16. Dispositif selon la revendication 15, caractérisé en ce que respectivement un premier convertisseur (23) et un deuxième convertisseur (24) sont conçus en tant que convertisseurs bidirectionnels combinés.
  17. Dispositif selon l'une des revendications 13 à 16, caractérisé en ce que les convertisseurs (23, 24) sont conformés en tant que convertisseurs piézoélectriques ou inductifs ou capacitifs.
  18. Dispositif selon les revendications 9 et 17, caractérisé en ce que les convertisseurs (23, 24) pour la mise à disposition d'énergie d'alimentation sont identiques aux convertisseurs (23, 24) pour la conversion entre signaux acoustiques ou modifications de pression et signaux électriques de commande et/ou de détection.
  19. Dispositif selon l'une des revendications 8 à 12, caractérisé en ce que pour la transmission de signaux de commande et/ou de détection entre un dispositif électronique de commande et/ou de réception de données (21 ; 51 ; 81) et le dispositif pneumatique (10 ; 40 ; 70), ceux-ci sont respectivement pourvus de moyens pour la transmission de données par infrarouge ou radio.
  20. Dispositif selon l'une des revendications 8 à 12, caractérisé en ce que pour la transmission de signaux de commande et/ou de détection entre un dispositif électronique de commande et/ou de réception de données (21 ; 51 ; 81) et le dispositif pneumatique (10 ; 40 ; 70) via la ligne pneumatique (13 ; 43 ; 73), celle-ci est conformée en tant que conducteur optique ou est pourvue d'un conducteur optique, le dispositif de commande et/ou de réception de données et le dispositif pneumatique étant respectivement pourvus d'un émetteur et/ou récepteur de lumière.
  21. Dispositif selon l'une des revendications 8 à 20, caractérisé en ce qu'un convertisseur (25) en particulier conformé en tant que micro-ordinateur est prévu dans ou sur le dispositif pneumatique (10 ; 40 ; 70), lequel est prévu pour la conversion des signaux transmis en signaux de commande pour au moins un dispositif de commande (15, 16) dans le dispositif pneumatique (10 ; 40 ; 70) et/ou pour la conversion de signaux de détection en signaux à retransmettre.
  22. Dispositif selon l'une des revendications 8 à 21, caractérisé en ce que le dispositif de commande et/ou de réception de données (21 ; 51 ; 81) est conformé en tant que station de bus raccordée à un bus de données (11).
  23. Dispositif selon la revendication 22, caractérisé en ce qu'au dispositif de commande et/ou de réception de données (21) conformé en tant que station de bus, plusieurs dispositifs pneumatiques (10 ; 40 ; 70) sont raccordés via des lignes pneumatiques (13 ; 43 ; 73).
  24. Dispositif selon l'une des revendications 22 ou 23, caractérisé en ce que plusieurs dispositifs de commande et/ou de réception de données (21 ; 51 ; 81) conformés en tant que stations de bus sont raccordés au bus de données (11), lesquels sont respectivement en liaison avec au moins un dispositif pneumatique (10 ; 40 ; 70).
  25. Dispositif selon l'une des revendications 8 à 24, caractérisé en ce que l'un au moins des convertisseurs (24), les moyens pour la mise à disposition d'énergie électrique d'alimentation et le convertisseur (25) sont intégrés dans le dispositif pneumatique (10 ; 40 ; 70).
  26. Dispositif selon l'une des revendications 8 à 25, caractérisé en ce que la ligne pneumatique (13 ; 43 ; 73) se compose d'un matériau synthétique flexible.
EP00960546A 1999-09-07 2000-08-30 Procede et dispositif destines a alimenter en energie electrique des dispositifs consommateurs d'electricite situes dans un appareil pneumatique ou associes a ce dernier Expired - Lifetime EP1127221B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19942509 1999-09-07
DE19942509A DE19942509A1 (de) 1999-09-07 1999-09-07 Verfahren und Vorrichtung zur Versorgung von elektrischen Verbrauchern in oder an einer pneumatischen Vorrichtung mit elektrischer Versorgungsenergie
PCT/EP2000/008433 WO2001018405A1 (fr) 1999-09-07 2000-08-30 Procede et dispositif destines a alimenter en energie electrique des dispositifs consommateurs d'electricite situes dans un appareil pneumatique ou associes a ce dernier

Publications (2)

Publication Number Publication Date
EP1127221A1 EP1127221A1 (fr) 2001-08-29
EP1127221B1 true EP1127221B1 (fr) 2004-04-14

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EP00960546A Expired - Lifetime EP1127221B1 (fr) 1999-09-07 2000-08-30 Procede et dispositif destines a alimenter en energie electrique des dispositifs consommateurs d'electricite situes dans un appareil pneumatique ou associes a ce dernier

Country Status (10)

Country Link
US (1) US6581619B1 (fr)
EP (1) EP1127221B1 (fr)
JP (1) JP2003508701A (fr)
KR (1) KR20010090821A (fr)
CN (1) CN1191434C (fr)
AT (1) ATE264461T1 (fr)
DE (2) DE19942509A1 (fr)
DK (1) DK1127221T3 (fr)
ES (1) ES2215066T3 (fr)
WO (1) WO2001018405A1 (fr)

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DE102007012733A1 (de) 2007-03-16 2008-09-18 Robert Bosch Gmbh Autonomer elektrischer Drucksensor
DE102007057295A1 (de) 2007-11-28 2009-06-10 Festo Ag & Co. Kg Fluidisch-elektrische Einrichtung mit drahtloser Energiespeisung

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DE102004020796B4 (de) * 2004-04-28 2006-04-13 Bosch Rexroth Ag Pneumatische Baugruppe mit drahtloser Energieversorgung
GB0411817D0 (en) * 2004-05-27 2004-06-30 Imi Norgren Ltd Fluid flow control valves
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DE102004063807A1 (de) * 2004-12-30 2006-07-13 Hartmann, Eva Steuereinheit für die Betriebssteuerung eines mit einem fluidischen Arbeits-Druckmedium betriebenen Antriebselements
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DE102005055261B4 (de) * 2005-11-19 2011-01-05 Festo Ag & Co. Kg Ventilanordnung mit wenigstens einem Sensor
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ES2215066T3 (es) 2004-10-01
WO2001018405A1 (fr) 2001-03-15
ATE264461T1 (de) 2004-04-15
EP1127221A1 (fr) 2001-08-29
CN1335917A (zh) 2002-02-13
DK1127221T3 (da) 2004-05-10
CN1191434C (zh) 2005-03-02
DE19942509A1 (de) 2001-04-05
DE50006066D1 (de) 2004-05-19
KR20010090821A (ko) 2001-10-19
US6581619B1 (en) 2003-06-24

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