EP2131044A2 - Dispositif de liaison électrique de plusieurs soupapes électropneumatiques agencées en tant qu'unités de soupape - Google Patents

Dispositif de liaison électrique de plusieurs soupapes électropneumatiques agencées en tant qu'unités de soupape Download PDF

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Publication number
EP2131044A2
EP2131044A2 EP09161213A EP09161213A EP2131044A2 EP 2131044 A2 EP2131044 A2 EP 2131044A2 EP 09161213 A EP09161213 A EP 09161213A EP 09161213 A EP09161213 A EP 09161213A EP 2131044 A2 EP2131044 A2 EP 2131044A2
Authority
EP
European Patent Office
Prior art keywords
valve
valves
electrically conductive
electrical
conductive plastic
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
EP09161213A
Other languages
German (de)
English (en)
Other versions
EP2131044A3 (fr
EP2131044B1 (fr
Inventor
Theo Paulus
Klaus Bergmann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2131044A2 publication Critical patent/EP2131044A2/fr
Publication of EP2131044A3 publication Critical patent/EP2131044A3/fr
Application granted granted Critical
Publication of EP2131044B1 publication Critical patent/EP2131044B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • F15B13/0857—Electrical connecting means, e.g. plugs, sockets
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0875—Channels for electrical components, e.g. for cables or sensors

Definitions

  • the present invention relates to a device for electrically connecting a plurality of electropneumatic valves lined up in the context of a valve unit with a central control unit for controlling the valves and / or processing signals of electrical sensors integrated in the valves via electrical line means.
  • valve units which form a block-like summary of several juxtaposed pneumatic valves.
  • an efficient supply and disposal is achieved with or from compressed air and required for electrical control electrical line means can be easily connected over short distances.
  • a pneumatic system with actuators such as pressure cylinders, can be controlled.
  • Valve units exist in two main types. On the one hand, at least one separate fluidic and electrical connection plate is assigned to each valve, which supply and disposal with or from compressed air and the electrical connection of the valves, which are placed on the connection plates be, takes over. On the other hand, it is also conceivable that this functionality is also taken over by the valve housing itself, which in so far take over the fluid supply channels and the electrical line means for looping through the electrical connection from valve to valve.
  • valve unit This consists essentially of a plurality of disc-shaped valves, which line up the design of a valve unit yield. The valves are fastened together. This results in a valve running from valve to valve longitudinally through the valve unit feed pressure channel and vent channels, each of which cross channels branch to lead to the region of the respective valve bore, in which a valve spool is provided for switching the flow of compressed air between the terminals.
  • the connections for attaching working lines are located on the front side of each valve.
  • electrical conduit means arranged here parallel to the longitudinal compressed air ducts electrical linking elements are provided. By means of these electrical linking elements, which are constructed on the principle of a parallel wiring, the drive signals are passed to pilot valves of each valve. For this purpose branching electrical lines are provided.
  • the invention includes the technical teaching that the electrical conduit means are formed as at least one electrically conductive plastic core looped from valve to valve within the valve unit, which is encapsulated by electrically non-conductive housing plastic, so that forms a one-piece housing.
  • the advantage of the solution according to the invention is, in particular, that with the production of the housing by injection molding, the prerequisites have not already been created not only for the internal compressed air line but also for the electrical line. An assembly of electrical line means within the housing is thus completely unnecessary. As a result, a source of error is excluded, which could be caused by incorrect assembly and thus caused faulty contacts.
  • the electrically conductive plastic cores according to the invention can be used both for supplying voltage to the pilot valves, and thus for their control, as well as for forwarding data in the form of sensor signals and the like from and to the valve.
  • the electrically conductive plastic cores according to the invention within the housing consist of polyamide with copper fiber and / or solder components.
  • a material mixture can be processed by injection molding technology and forms a reliable bond with the surrounding non-conductive housing plastic.
  • the proportion of copper fibers and / or Lotan turnover ensures for the electrical conductivity of the plastic core and is to be dimensioned so that it is reliable and low-loss.
  • other electrical conductors in particular aluminum or silver can be used.
  • the electrically conductive plastic cores With the electrically conductive plastic cores according to the invention, different wiring concepts can be implemented.
  • the electrically conductive plastic cores it is possible for the electrically conductive plastic cores to form a parallel wiring extending from valve to valve.
  • each pilot valve of the individual valves to be connected is connected via two wires to the central electrical control unit.
  • a common neutral conductor can be used.
  • the electrically conductive plastic cores extending from valve to valve serial bus line for each valve associated pilot valves.
  • this bus line valve side requires an electronic decoding element to implement the serial data in parallel control signals for the pilot valves.
  • the electrically conductive plastic cores can pass through a housing which directly represents the valve housing, wherein next to the switching element, usually valve spool is housed for switching the flow of compressed air.
  • the electrically conductive plastic cores can also run from a fluidic and electrical connection plate on which an exchangeable valve can be mounted. In this regard, it is also conceivable to use a single multiple valves associated fluidic and electrical connection plate.
  • the electrically conductive plastic cores of adjacent housings which may be valve housings or terminal block housings, takes place by contact surfaces coming into contact with each other. These may have a shape that promotes electrical contacting by bulging outward or the like. Alternatively, however, it is also conceivable to produce the contact via additional metal tips, which penetrate into the end faces of the plastic wires. These are preferably pre-assembled on one side to ensure a contact-secure final assembly.
  • metal tips are provided for the electrical contacting of the pilot valve with the associated electrically conductive plastic core fixedly mounted on the pilot valve and penetrating into the plastic cores. If a separate fluidic connection plate is used, the metal tips are preferably formed on the part of the valve, so that with an attachment of the valve to the connection plate via the opposing connection surfaces, for example by screws, and the electrical connection is made.
  • the pneumatic valve unit 1 shown here consists of several juxtaposed electropneumatic valves 2a-2e.
  • the control of the electropneumatic valves 2a-2e which are each equipped with a pilot valve 3a-3e, via a valve unit 1 with respect to the central control unit 4.
  • Between the central control unit 4 and the pilot valves 3a and 3e of the electropneumatic valves 2a-2e are of Valve to valve corresponding electrical conduit means - which will be explained in more detail later - out.
  • valves 2a-2e The supply of the individual valves 2a-2e with compressed air as well as the disposal of used compressed air takes place in this embodiment via a separate connection plate 5 assigned to each valve 2a-2e (by way of example).
  • a separate connection plate 5 assigned to each valve 2a-2e (by way of example).
  • About longitudinally extending compressed air channels P for feed pressure supply and R and S for venting the coupling is carried out by thereof branching transverse channels to the valves 2a-2e out.
  • At each valve 2a-2e also two working ports A and B are arranged frontally. About the working ports A and B can - not shown - pressure medium lines are connected to supply actuators, such as pressure cylinder, with working pressure.
  • the flow of compressed air between the ports is here controlled by a valve spool located within each valve 2a-2e.
  • valve spool is supplied with control pressure in accordance with pilot control via the pilot valves 3a-3e.
  • the switching behavior of the valve 2a-2e can be determined via a pressure sensor 6, which is likewise integrated therein, and can be fed back to the control unit 4 electrically.
  • the electrical conduit means according to the invention as two mutually parallel and looped from valve to valve within the valve unit 1 electrically conductive plastic core 7 executed.
  • the electrically conductive plastic core 7 consists of polyamide with copper fiber and Lotan turnover.
  • the electrically conductive plastic core 7 forms here from one valve to valve two-wire serial bus line electrically connected to each pilot valve 3a-3e.
  • the pilot valves 3a-3e respectively provide decoding chips for converting the serial drive signals into parallel signals for actuating the solenoid valves integrated therein.
  • the power supply of the magnetic coils of the pilot valves 3a-3e takes place via the electrically conductive, looped-through plastic core 7.
  • the electrically conductive plastic core 7 is encapsulated by a surrounding this non-electrically conductive housing plastic, which forms a one-piece housing 8 of the individual fluidic and electrical connection plates 5 in this embodiment.
  • the electrically conductive plastic cores 7 within the housing 8 serve in addition to the power supply of the connected pilot valves 3a and 3e also a bidirectional data exchange with the control unit 4 and to that extent also forward the signals of the pressure sensor 6 to the control unit 4 for evaluation.
  • Fig.2 the contacting of the various sections of electrically conductive plastic cores 7 takes place within the juxtaposed connection plates 5 by contact surfaces 9a and 9b coming into abutment against one another at the front side.
  • a stationary on the pilot valve 3b (exemplary) attached penetrating metal tip 10 is provided which in the assembly of the pilot valve in addition to the electrical contacting and a mechanical attachment to the housing 8b of the connection plate 5 produces.
EP20090161213 2008-06-04 2009-05-27 Dispositif de liaison électrique de plusieurs soupapes électropneumatiques agencées en tant qu'unités de soupape Active EP2131044B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810026681 DE102008026681B3 (de) 2008-06-04 2008-06-04 Einrichtung zur elektrischen Verbindung mehrerer als Ventileinheit angeordnete elektropneumatische Ventile

Publications (3)

Publication Number Publication Date
EP2131044A2 true EP2131044A2 (fr) 2009-12-09
EP2131044A3 EP2131044A3 (fr) 2011-09-28
EP2131044B1 EP2131044B1 (fr) 2013-04-17

Family

ID=41055233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090161213 Active EP2131044B1 (fr) 2008-06-04 2009-05-27 Dispositif de liaison électrique de plusieurs soupapes électropneumatiques agencées en tant qu'unités de soupape

Country Status (2)

Country Link
EP (1) EP2131044B1 (fr)
DE (1) DE102008026681B3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010023319B4 (de) 2009-07-20 2023-03-02 Aventics Gmbh Anschlussplatte für Aktuatoren
DE102010052481B4 (de) * 2010-11-26 2023-07-06 Hitachi Energy Switzerland Ag Hochspannungsschaltgerät

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19840700A1 (de) 1998-08-21 2000-03-30 Mannesmann Ag Ventileinheit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4402735A1 (de) * 1994-01-29 1995-08-03 Teves Gmbh Alfred Elektrohydraulische Druckregelvorrichtung
US5909012A (en) * 1996-10-21 1999-06-01 Ford Motor Company Method of making a three-dimensional part with buried conductors
DE19704152C2 (de) * 1997-02-04 1998-11-05 Siemens Ag Steuergerät für ein Antiblockiersystem
DE19722925C1 (de) * 1997-05-27 1998-09-10 Mannesmann Ag Elektrisches Anschlußelement für Elektromagnete von Ventileinheiten
EP0947408A3 (fr) * 1998-03-30 2000-04-12 Siemens Aktiengesellschaft Appareil de commande pour une commande hydraulique de freinage et son procédé de fabrication
DE19848039A1 (de) * 1998-10-17 2000-04-20 Bosch Gmbh Robert Anordnung zur Kontaktierung eines einen elektrischen Anschluß aufweisenden Bauteils mit einer elektrischen Schaltung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19840700A1 (de) 1998-08-21 2000-03-30 Mannesmann Ag Ventileinheit

Also Published As

Publication number Publication date
DE102008026681B3 (de) 2010-01-07
EP2131044A3 (fr) 2011-09-28
EP2131044B1 (fr) 2013-04-17

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