EP2746595A1 - Agencement de vannes - Google Patents

Agencement de vannes Download PDF

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Publication number
EP2746595A1
EP2746595A1 EP20120008399 EP12008399A EP2746595A1 EP 2746595 A1 EP2746595 A1 EP 2746595A1 EP 20120008399 EP20120008399 EP 20120008399 EP 12008399 A EP12008399 A EP 12008399A EP 2746595 A1 EP2746595 A1 EP 2746595A1
Authority
EP
European Patent Office
Prior art keywords
valve
signal transmission
valve carrier
receiving space
carrier
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
EP20120008399
Other languages
German (de)
English (en)
Other versions
EP2746595B1 (fr
Inventor
Eduard Wenske
Swen Schuppler
Heiko Kühbauch
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 EP12008399.3A priority Critical patent/EP2746595B1/fr
Publication of EP2746595A1 publication Critical patent/EP2746595A1/fr
Application granted granted Critical
Publication of EP2746595B1 publication Critical patent/EP2746595B1/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
    • F15B13/0807—Manifolds
    • F15B13/0817—Multiblock manifolds
    • 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
    • F15B13/0828—Modular units characterised by sealing means of the modular units
    • 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
    • F15B13/0832—Modular valves
    • F15B13/0839—Stacked plate type valves
    • 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

Definitions

  • the invention relates to a valve arrangement, comprising a valve carrier having a plurality of mutually facing joining surfaces in a rowing direction valve carrier modules, each carry at least one electrically actuated valve unit, which is housed encapsulated in an outwardly closed receiving space of the respective valve support module, wherein in the interior the valve carrier is a signal transmission channel extending through the valve carrier modules and composed of mutually communicating signal transmission spaces of the juxtaposed valve carrier modules, which accommodates a signal transmission train designed to transmit electrical signals, wherein in each valve carrier module the receiving space and the signal transmission space are formed separately from each other and interconnected by at least one contacting hole through which the valve unit passes with the signal Strands strand is contacted electrically.
  • One from the DE 10 2007 047 703 A1 known valve arrangement of this type has a modular valve carrier with a plurality of valve carrier modules, each defining a receiving space in which an electrically actuated valve unit is housed.
  • the reception room is shared by one body and one common a closure surface of the valve carrier mounted on a mounting surface of the base body, wherein the valve unit sits completely inside the base body.
  • a signal transmission line is provided, which is laid in a signal transmission channel extending in the interior of the valve carrier, which is composed of mutually communicating signal transmission spaces of the lined valve carrier modules.
  • each valve carrier module the receiving space is connected via a contacting hole with the associated signal transmission space through which the electrical contact takes place between the valve unit and the signal transmission line.
  • a disadvantage of this constellation is that leakages occur in the interior of the receiving space pressure fluid or other contaminants in the adjacent signal transmission space and can affect the electrical function.
  • each valve unit projects through a contacting hole formed in the main body into a signal transmission channel, in which it is electrically connected to a signal transmission line.
  • the invention has for its object to meet in a valve assembly of the type mentioned measures to help avoid attributable to leaks impairments of electrical function.
  • the invention provides that the contacting holes are each sealed fluid-tight by a sealing means, which are characterized by the signal transmission spaces fluidly separated receiving spaces by means of at least one valve carrier in the line-up direction passing through and leading to the atmosphere pressure relief channel are constantly vented together.
  • the pressure relief channel can be realized with an advantageous course in the interior of the valve carrier, that it opens at a point of the valve assembly to the atmosphere at which the penetration of interfering media is unlikely. If necessary, the possibility can be created to carry away the resulting leakage by means of a fluid line from the valve assembly.
  • the pressure relief channel is expediently composed of mutually communicating pressure relief channel sections, which are formed in the juxtaposed valve support modules and open there to each one of the two opposite, oriented in the alignment direction joining surfaces.
  • At least one pressure relief channel to which the receiving spaces are individually connected via at least one branch channel.
  • a design is considered, in which the receiving spaces are switched directly into the course of the pressure relief channel, so that they themselves form a longitudinal section of the pressure relief channel.
  • each pressure relief channel section is composed of a receiving space and of two channel end sections communicating on the one hand with the receiving space and on the other hand with one of the two joining surfaces of the valve carrier module.
  • the connection of successive pressure relief channel sections in this case results from the connection of two channel end sections.
  • the channel end sections open into the receiving space independently of each other on a bottom surface of the receiving space.
  • sealing means used for sealing the contacting holes are expediently designed as sealing rings, which are expediently used in each case one of the contacting holes.
  • these sealing rings are in sealing contact with the valve carrier module and, on the other hand, enclose an electrical communication section passing through the associated contacting hole. which is a part of the valve unit and / or a component of the signal transmission line.
  • each valve unit there is a plug-in connection or a pure contact connection between each valve unit and the signal transmission line, wherein the connecting means cooperating with each other are expediently arranged in the signal transmission channel and thus sealed off from the assigned receiving space in a fluid-tight manner.
  • valve carrier fluid channels opening into the receiving space and in fluid communication with the valve unit located in the receiving space are formed in each valve carrier module. At least some of these valve carrier fluid channels also lead to the two mutually opposite joining surfaces of the valve carrier module and complement each other with the same valve carrier fluid channels of the other valve carrier modules to a valve carrier through-passage channel passing through the valve carrier in the line-up direction.
  • valve support modules are each designed in several parts and each contain a base body and a particular mounting surface of the base body releasably attached closure cap, which together define the receiving space of the valve support module. Both the signal transmission channel and the pressure relief channel extend expediently through the base body.
  • each valve carrier module is at least partially formed by a base body interior, which is formed in the interior of the main body, and which has a mounting opening for the valve unit facing the closure lid having.
  • the valve unit can be accommodated completely or with only part of their height in the base body here. In this way, if necessary, small height dimensions of the valve arrangement can be realized.
  • each valve support module is at least partially formed by a closure lid interior
  • the valve unit is housed with a part of their height or completely inside the closure lid.
  • the closure lid is hood-shaped and engages over the valve unit from above.
  • valve unit is expediently received here with a lower section in the main body interior and protrudes into the closure cover with an upper section protruding beyond the main body.
  • the height dimensions of the closure lid interior and the base body interior are matched to one another such that the valve unit with at least 20%, a maximum of 80% of their height is included in the main body interior. Only the remaining height portion of the valve unit then protrudes out of the base body and into the preferably hood-shaped closure lid.
  • closure lid expediently a smaller outline than the mounting surface of the associated body. In this way, there is a gap between the closure lids of adjacent valve support modules, which facilitates the gripping of the closure lid for the purpose of its attachment or lifting.
  • valve unit is attached to the main body independently of the closure lid. In this way it can be ensured that the valve unit, especially during maintenance, even with the cap removed is fully functional. Whether the closure lid is attached or not, affects the operability of the valve body attached to the base unit as such expediently not.
  • the valve unit is expediently of electro-fluidic pilot-controlled design. It has a directly to control a pressurized fluid, in particular compressed air, serving main valve means which can be actuated by means of a likewise belonging to the valve unit, electrically actuated pilot valve device.
  • the pilot valve device includes one or more pilot valves, which are expediently realized in the form of a solenoid valve having an electromagnet as the drive component.
  • both the main valve device and the pilot valve device are each arranged at least partially in the main body.
  • the signal transmission line arranged in the signal transmission channel is expediently composed of a plurality of signal transmission segments which are accommodated in one of the signal transmission spaces of the valve carrier modules and which electrically communicate with one another when the valve carrier modules are brought together.
  • sealing measures are provided between the mutually facing joining surfaces of adjacent valve carrier modules, which effects a redundant, multiple sealing of the signal transmission channel with respect to the atmosphere.
  • an inner seal surrounding the signal transmission channel is expediently provided, which is surrounded on the outside by a further seal designated as an outer seal, wherein the outer seal is expediently placed immediately adjacent to the outer edge of the joining surfaces.
  • the outer seal already prevents ingress of contaminants or moisture in the area surrounded by it between adjacent valve carrier modules.
  • the outer seal is placed immediately adjacent to the outer surface of the valve support modules, so that difficult to clean joints are avoided.
  • this does not adversely affect the reliability of the electrical components of the valve assembly, because the inner seal acts as an additional barrier and can prevent from the outer seal not retained media at an entrance into the signal transmission channel ,
  • At least one pressure relief channel is suitably in the Valve carrier placed so that it extends in the area located between the inner seal and the outer seal. In this way, the pressure relief passage is sealed by the inner seal with respect to the signal transmission channel and by the outer seal with respect to the immediate vicinity of the valve carrier.
  • valve assembly 1 has a preferably a longitudinal shape having valve carrier 2, which is equipped with a plurality of electrically actuated valve units 3.
  • the valve units 3 are preferably of the electro-fluidic and in particular electro-pneumatically piloted type.
  • the valve units 3 are in particular multiway valves, for example 5/2-way valves.
  • the valve carrier 2 extends in the direction of a dash-dotted line indicated major axis 4, which defines the longitudinal axis of the valve carrier 2 in the embodiment.
  • the valve carrier 2 has a modular structure and contains a plurality of valve carrier modules 2a, which are lined up in a line-up direction 5, which coincidently coincides with the axial direction of the main axis 4, and are fastened to one another.
  • the valve carrier 2 also contains two end modules 2b, 2c which delimit the row of valve carrier modules 2a on both sides on both sides and which are designed in particular as end covers. All modules 2a, 2b, 2c of the valve carrier 2 are fixed to one another in that they are clamped together either by means of one or more tie rods or each directly adjacent valve support modules 2a, 2b, 2c are attached directly to each other.
  • Each valve support module 2a is equipped with one of the valve units 3.
  • Each valve support module 2a expediently has a multi-part structure and then contains a base body 6 and a closure cover 7, in particular detachably fastened thereto. Together, the base body 6 and the closure lid 7 define a receiving space 27 for accommodating a valve unit 3 encapsulated in the environment.
  • the individual basic body 6 are expediently formed in one piece and consist in particular of plastic material. They are preferably designed plate-shaped or disc-shaped. Each main body 6 has two side surfaces oriented in opposite directions in the alignment direction 5, which in the following will be referred to as joining surfaces 8, because the valve carrier modules 2 a are juxtaposed with these joining surfaces 8. In this way, joining surfaces 8 belonging to adjacent valve carrier modules 2 a face each other in pairs in the line-up direction 5.
  • the end-side termination modules 2b, 2c are each attached to a mounting surface 8a to a respective facing joining surface 8 of the base body 6 of a row last valve carrier module 2a of the valve carrier module row.
  • valve support module 2a is configured in one piece as a whole, the joining surfaces 8 are located on this one-piece valve support module.
  • Each base body 6 has in the embodiment at an orthogonal to the alignment direction 5 oriented Au ⁇ enseite, which is an example of an upper side, a mounting surface 12 to which a closure lid 7 is detachably mounted.
  • the closure lid 7 is preferably hood-shaped and attached in advance to the mounting surface 12 with a hood opening designated below as a lid opening 13.
  • the closure lid 7 has a cover opening 13 opposite the ceiling wall 14 and integrally adjoining, the associated base body 6 projecting lateral peripheral wall 15, wherein the peripheral wall 15 on the ceiling wall 14 side facing away from an end face 16 which frames the lid opening 13.
  • the closure lid 7 is preferably formed in one piece and consists in particular of plastic material.
  • first fastening means 17 are provided, which are formed by fixing screws, which pass through the wall of the closure lid 7 and are each screwed into a fastening thread 17a formed in the base body 6.
  • a sealing means 18 Between the end face 16 of the closure lid 7 and the mounting surface 12 is a sealing means 18, by which a seal between the closure lid 7 and the base body 6 is effected.
  • the closure lid 7 have an elongated shape with a direction perpendicular to the alignment direction 5 longitudinal axis 22. This results by way of example a preferred elongated hood shape of the closure lid. 7
  • Each closure lid 7 also has a vertical axis 23 oriented perpendicular to the mounting surface 12 and a transverse axis 24 extending parallel to the alignment direction 5.
  • the dimensions of the closure lid 7 in the transverse direction are substantially smaller than in the longitudinal direction.
  • Each base body 6 has a transverse axis 25 oriented in the line-up direction 5.
  • the transverse dimensions of the base body 6 measured in the axial direction of this transverse axis 25 are preferably larger than the transverse dimensions of the associated closure lid 7, at least in the area of the mounting surface 12. In this way, there is an intersection in the line-up direction 5 directly adjacent closure lids 7, a gap 26 which facilitates the individual gripping the closure lid 7 for the purpose of their assembly or disassembly.
  • This receiving space 27 extends in the exemplary embodiment partly inside the base body 6 and partly inside the hood-shaped closure lid 7.
  • Base 6 formed portion of the receiving space 27 is hereinafter referred to as the main body interior space 27a, formed in the closure cap 7 portion of the receiving space 27 as a closure lid interior 27b.
  • the entire receiving space 27 is formed in the interior of the base body 7, so it consists exclusively of a main body interior 27 a corresponding height.
  • the closure lid 7 may be formed in this case, for example, plate-shaped.
  • the entire receiving space 27 is formed in the interior of the closure lid 7, ie consists exclusively of a closure lid interior space 27b.
  • the main body interior 27a is expediently pocket-shaped. It has a lying at the level of the mounting surface 12, the closure lid 7 facing and hereinafter referred to as the mounting opening 28 opening and is bounded both on the mounting opening 28 opposite bottom and round laterally from the base body 6. Accordingly, the base body 6 forms a bottom surface 32 delimiting the base body interior 27a below and a lateral peripheral surface 33 extending laterally around the main body interior space 27a. The peripheral side surface 33 extends up to the mounting opening 28.
  • the receiving space 27 apart from the openings explained below - the mouths of Kunststoffssenslöchern 71 and valve support fluid channels 57 - completely closed all around.
  • the receiving space 27 is in particular also closed to the two joining surfaces 8 through a circumferential surface 33 forming wall, so that it is not accessible even in the individual state of a valve support module 2a of the joining surfaces 8 ago.
  • each valve support module 2a In the receiving space 27 of each valve support module 2a, one of the already mentioned, electrically actuated valve units 3 is encapsulated to the immediate vicinity of the valve assembly 1 out accommodated. Since the receiving space 27 is closed to the outside, the valve unit 3 located therein is not directly exposed to environmental influences. In particular, the valve unit 3 can not pollute and can not be affected by aggressive cleaning media, which may be used from time to time to clean the valve assembly 1 outside.
  • each valve unit 3 is arranged in the associated receiving space 27 that it sits with a designated below as lower section 38 lower portion in the main body interior 27a and with a hereinafter referred to as upper section 39 upper portion in the closure lid 7 formed by the closure lid Interior 27b protrudes.
  • the valve unit 3 is thus located partially in the main body interior 27a and partially in the closure lid interior 27b.
  • valve unit 3 is preferably fastened to the main body 6 independently of the closure lid 7. In this way, the cap 7 can be removed and reassembled without having to solve the assembled valve unit.
  • the valve arrangement 1 can thus also be operated regularly in a state in which one or more valve units 3 are not currently surrounded by a closure cover 7.
  • each valve unit 3 is associated with second fastening means 42, which are formed separately and independently of the first fastening means 17 used for fixing the associated closure lid 7.
  • second fastening means 42 are formed separately and independently of the first fastening means 17 used for fixing the associated closure lid 7.
  • they are formed by fastening screws which pass through the valve unit 3 and are screwed into the main body 6.
  • valve unit 3 can be easily grasped at the over the main body 6 protruding upper portion 39.
  • each valve unit 3 can be of the electrically directly operable type. However, it is preferably of electro-fluidic and in particular electro-pneumatic pilot-controlled design. By way of example, it is composed of a main valve device 43 and a pilot valve device 44 which is combined to form the main valve device 43.
  • the valve unit 3 has a longitudinal axis 45, wherein the pilot valve device 44 is preferably arranged on only one of the two end sides of the main valve device 43.
  • the main valve device 43 has a main valve housing 46 and at least one movably arranged therein, in particular slider-like designed main valve member 47.
  • the latter can be positioned by fluid force in different switching positions in which it in the main valve body 46 extending main valve channels 48 in certain patterns fluidly connects or disconnected from each other.
  • the main valve channels 48 open outwardly on a base surface 52 of the valve unit 3 in such a way that they are in fluid communication with the valve carrier fluid channels 57 which likewise open out into the receiving space 27 and which are likewise suitable for the passage of a fluid.
  • the fluid force for the actuation of the main valve member 47 provides a compressed fluid, in particular formed by compressed air, which is supplied to the main valve means 43 controlled by the pilot valve means 44.
  • the pilot valve device 44 is formed electrically actuated.
  • the pilot valve device 44 includes at least one in particular designed as a solenoid valve pilot valve 53 a, 53 b.
  • a solenoid valve pilot valve 53 a, 53 b By way of example, two such pilot valves 53a, 53b are present.
  • the valve unit 3 is inserted with its base 52 ahead in the main body interior space 27 a and is located with the base 52 on the bottom surface 32 at.
  • the main valve channels 48 opening out on the base surface 52 each communicate with one of the valve carrier fluid channels 57 formed in the base body 6 and opening into the receiving space 27 on the bottom surface 32.
  • At least a portion of the main valve device 43 expediently belongs to the lower subsection 38 of the valve unit 3 accommodated in the main body interior 27a.
  • both the pilot valve device 44 and the main valve device 43 are located partially in the main body interior 27a and partially in the interior of the closure lid 27b.
  • the height dimensions of the valve unit 3 and the receiving space 27 are matched to one another such that the valve unit 3 is received in the main body interior 27 with at least 20% and at most 80% of its overall height. Expediently, these percentages apply to both the main valve device 43 and the pilot valve device 44.
  • the valve unit 3 receives the electrical control signals controlling its actuation from a signal transmission line 63 which extends in a signal transmission channel 64 passing through the valve carrier 2 in the line-up direction 5. At its two end faces is the signal transmission channel 64 expediently closed by the two end modules 2b, 2c. Externally on the valve carrier 2 and in particular on one of the termination modules 2c arranged electromechanical interface means 68 are connected to the signal transmission line 63 in electrical connection and enable the signal-transmitting communication with a non-illustrated external electronic control device.
  • Each valve carrier module 2a is, in particular in the region of the base body 6, penetrated by an individual signal transmission space 64a in its transverse direction.
  • each signal transmission space 64a leads to the two joining surfaces 8 of the associated valve carrier module 2a.
  • the signal transmission spaces 64a of all valve carrier modules 2a are aligned with each other and complement each other to the signal transmission channel 64th
  • the signal transmission line 63 has, within each signal transmission space 64a, at least one first electrical communication section 69. With each first electrical communication section 69, a second electrical communication section 70 of the valve unit 3 is detachably in electrically conductive connection. As a result, an electrical connection between the signal transmission line 63 and each electrically operable valve unit 3 is made electromechanically.
  • the second electrical communication portion 70 is formed as a plug and the first electrical communication portion 69 as a connector counterpart.
  • Each of these electrical connections is made through a contacting hole 71 formed in the valve support module 2a and extending between the receiving space 27 and the signal transmission space 64a.
  • two contacting holes 71 are provided per valve support module 2a to establish a double electrical connection between the valve unit 3 and the signal transmission line 63.
  • the signal transmission line 63 is expediently of modular construction and is composed of a plurality of signal transmission segments 63a arranged in each case in the interior of a signal transmission space 64a, which are lined up under electrical connection.
  • each signal transmission segment 63a is attached to the associated valve support module 2a, so that the electrical connection, which is realized in particular by means of a plug connection by means of plug connection means 65, automatically adjusts when fitting the valve support modules 2a.
  • the first electrical communication sections 69 are each arranged on one of the signal transmission segments 63a.
  • the contacting holes 71 are each closed fluid-tight by a sealing means 73. This is a fluid transfer excluded from the receiving space 27 in the associated signal transmission space 64a.
  • the sealing means 73 are expediently in each case a sealing ring 73a, which tightly surrounds the electrical communication section 69 and / or 70 passing through the associated contacting hole 71 and, moreover, is in sealing contact with the valve carrier module 2a.
  • Each sealing ring 73 is expediently arranged in the interior of a contacting hole 71 and bears against the peripheral boundary surface of the respective contacting hole 71 under sealing.
  • the second electrical communication section 70 belonging to the valve unit 3 extends through the associated contacting hole 71, which is this second electrical contacting section 70 enclosed by the sealing ring 73a.
  • the contact point of the electrical connection between the two electrical communication sections 69, 70 thus lies outside the receiving space 27 sealed by the sealing ring 73a.
  • the sealing ring 73a has a radially resilient sealing lip, with which it rests against the boundary surface of the contacting hole 71.
  • This sealing lip is in particular designed so that it is pressed in the case of an overpressure occurring in the receiving space 27 reinforced under sealing to said boundary surface.
  • the pressure relief channel 74 passes through the valve carrier 2 in the alignment direction 5.
  • the pressure relief passage 74 communicates with a pressure relief port 75 opening out toward the outer surface of the valve carrier 2. This may be provided with a filter element or the like to prevent ingress of contaminants.
  • the pressure relief port 75 is expediently formed in one of the end modules 2b. It is preferably located on a base 37 of the valve carrier 2, which is oriented opposite to the mounting surface 12. In the drawing, a possible venting air flow through the pressure relief passage 74 is indicated by arrows 77.
  • the pressure relief channel 74 is expediently composed within the valve carrier modules 2a of pressure-relief channel sections 74a of the valve carrier modules 2a which communicate with one another.
  • Each pressure-relief channel section 74a passes through the associated valve support module 2a in its transverse direction and opens out to the two joining surfaces 8 of the respective valve support module 2a which are oriented in opposite directions in the alignment direction 5.
  • the juxtaposed ones complement each other Pressure relief passage sections 74 a to the pressure relief passage 74.
  • the pressure relief channel 74 which in principle may also be present several times, is expediently formed with the inclusion of the receiving spaces 27.
  • the receiving spaces 27 are switched directly into the course of the pressure relief channel 74, so that they each form a longitudinal section of the pressure relief channel 74.
  • each pressure relief channel section 74a is composed of a receiving space 27 and two channel end sections 74b, 74c. Both Kanalendabête 74b, 74c open on the one hand separately from each other in the receiving space 27 a. On the other hand, they lead to different of the two joining surfaces 8. When the valve support modules 2a are placed against each other, mutually aligned channel end portions 74b, 74c of immediately adjacent valve support modules 2a communicate with each other to yield the continuous pressure relief passage 74.
  • the channel end sections 74b, 74c expediently open at the bottom surface 32 into the receiving space 27.
  • Their corresponding channel openings 76 are expediently placed so that they are not covered by the valve unit 3 or at least not completely. Preferably, they are arranged in the region of one of the end-side end regions of the receiving space 27.
  • the valve arrangement 1 is preferably designed such that both a common fluid supply and a common fluid disposal of all valve units 3 through the valve carrier 2 is possible.
  • some of the valve carrier fluid channels formed in the valve support modules 2a are 57 configured such that they have a connecting channel section 57a, which passes through the valve support module 2a and in particular its base body 6 in the axial direction of the main axis 4 and opens to both joining surfaces 8 of the valve support module 2a.
  • a total of three independent connection channel sections 57a serves at least one for fluid supply and at least one for fluid removal.
  • the pressure fluid which is to be passed through the valve units 3 to consumers connected to the valve units 3 is supplied.
  • the fluid that flows back from the connected consumers is removed.
  • valve channel sections 57a formed in the individual valve carrier modules 2a communicate with one another and define one or more valve carrier passageway 58 passing through the valve carrier 2 in the line-up direction 5.
  • this results in a total of three such valve carrier passageway fluid channels 58, one of which be used for fluid supply and two for fluid disposal.
  • Each of these valve carrier passageway fluid channels 58 is conveniently accessible on at least one of the termination modules 2c to connect to a pressure source or pressure sink or atmosphere.
  • FIG. 3 In this regard, three outlet openings 59 opening out from the base surface 37 of these valve carrier passageway fluid channels 58.
  • valve carrier channels 57 per valve carrier module 2a act as working channels 57b and terminate on an outer surface of the valve carrier module 2a, in particular on the base 37. Fluid lines can be connected there, which lead to a consumer to be actuated.
  • each valve carrier through-fluid channel 58 is framed by a fluid channel seal 81. More specifically, each fluid passage seal 81 encloses the mouth portions of the communication passage portions 57a opening out to the joining surfaces 8. Each fluid channel seal 81 abuts against the mutually facing joining surfaces 8 of the adjacent valve carrier modules 2a.
  • a frame-shaped outer seal 82 is arranged in each joining region between two successive valve carrier modules 2a, which frame surrounds both the signal transmission channel 64 and all the valve carrier through-fluid channels 58 together. Like the fluid channel seals 81, it rests against the facing joining surfaces 8 under sealing and prevents the penetration of external media into the joining region of the valve carrier modules 2 a placed against one another.
  • the outer seal 82 is placed immediately adjacent to the outer edge 84 of the mutually facing joining surfaces, but still within the joining surfaces 8. It expediently closes flush with the perpendicular to the joining surfaces 8 oriented outer surface 85 of the adjacent valve support modules 2a. In this way, gaps are avoided in which difficult to remove impurities can be deposited.
  • a seal located inside the outer seal 82 and therefore designated as an inner seal 83, which frames only the signal transmission channel 64 as a single channel. More specifically, the inner seal 83 framed the facing each other Mouth areas of the signal transmission spaces 64a. The inner seal 83 is under sealing against the mutually facing joining surfaces 8 of the valve support modules 2a.
  • the inner seal 83 is framed by the outer seal 82 at a distance. It provides an additional seal of the signal transmission channel 64 and causes together with the outer seal 82 in this regard, a redundant seal.
  • the outer seal 82 and the inner seal 83 are expediently designed as separate, not interconnected components.
  • sealing structure 86 may also include further seals with which selected zones between the valve carrier modules 2 a are attached to one another, for example, further fluid channels.
  • the preferably existing pressure relief passage 74 is suitably placed so that it extends through the valve carrier 2 in the area located between the inner seal 83 and the outer seal 82.
  • the pressure relief passage 74 is located in the area lying between the one-piece seal structure 86 and the outer seal 82. In this way, one avoids an additional seal between the juxtaposed pressure relief channel sections 74a. The seal to the atmosphere takes over the outer seal 82 and the seal to the signal transmission channel 64, the inner seal 83rd
  • All seals 81, 82, 83 are expediently made of a material with rubber-elastic properties, preferably an elastomeric material.
  • the seals 81, 82, 83 are expediently held with a part of their cross section in a groove formed in one or in both joining surfaces 8. It is also possible, one or more of the seals 81, 82, 83 to be firmly bonded to one of the joining surfaces 8, for example by injection molding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Housings (AREA)
EP12008399.3A 2012-12-18 2012-12-18 Agencement de vannes Active EP2746595B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12008399.3A EP2746595B1 (fr) 2012-12-18 2012-12-18 Agencement de vannes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12008399.3A EP2746595B1 (fr) 2012-12-18 2012-12-18 Agencement de vannes

Publications (2)

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EP2746595A1 true EP2746595A1 (fr) 2014-06-25
EP2746595B1 EP2746595B1 (fr) 2015-09-30

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2121015A1 (de) * 1970-05-01 1971-12-02 Tektro Inc Ventil der Einsatzbauart
EP1120574B1 (fr) 2000-01-25 2005-05-25 Festo AG & Co Assemblage des Vannes
DE60016681T2 (de) * 1999-07-16 2005-12-08 Smc Corp. Magnet-Wegeventil für einen Verteilerblock mit einer Relais-Vorrichtung
DE102007047703A1 (de) 2006-10-12 2008-04-24 Smc K.K. Ventilvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2121015A1 (de) * 1970-05-01 1971-12-02 Tektro Inc Ventil der Einsatzbauart
DE60016681T2 (de) * 1999-07-16 2005-12-08 Smc Corp. Magnet-Wegeventil für einen Verteilerblock mit einer Relais-Vorrichtung
EP1120574B1 (fr) 2000-01-25 2005-05-25 Festo AG & Co Assemblage des Vannes
DE102007047703A1 (de) 2006-10-12 2008-04-24 Smc K.K. Ventilvorrichtung

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EP2746595B1 (fr) 2015-09-30

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