EP2708758B1 - Elektropneumatischer Verteiler - Google Patents

Elektropneumatischer Verteiler Download PDF

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Publication number
EP2708758B1
EP2708758B1 EP13184014.2A EP13184014A EP2708758B1 EP 2708758 B1 EP2708758 B1 EP 2708758B1 EP 13184014 A EP13184014 A EP 13184014A EP 2708758 B1 EP2708758 B1 EP 2708758B1
Authority
EP
European Patent Office
Prior art keywords
printed circuit
distributor
connector
distributor according
seal
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.)
Active
Application number
EP13184014.2A
Other languages
English (en)
French (fr)
Other versions
EP2708758A1 (de
Inventor
Michel Schmidt
Olivier Glandor
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.)
Asco SAS
Original Assignee
Asco SAS
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Filing date
Publication date
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Publication of EP2708758A1 publication Critical patent/EP2708758A1/de
Application granted granted 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
    • F15B13/0828—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
    • F15B13/0846—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
    • F15B13/0807—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
    • F15B13/0846—Electrical details
    • F15B13/0853—Electric circuit boards

Definitions

  • the present invention relates to electro-pneumatic devices and more particularly to those called distributors.
  • a distributor conventionally comprises one or more so-called “pilot” solenoid valves which act differently, depending on their state, on a pneumatic control circuit of a multi-way valve.
  • the latter conventionally comprises a slide making it possible to establish different pneumatic connections for controlling one or more pneumatic actuators, depending on its position.
  • Several distributors are usually mounted, as required, in a so-called “island” configuration, side by side on a base which generally comprises a supply and an exhaust for the pneumatic control circuit of the multi-way valve and various connections with the circuit. tire to which it is connected.
  • the electrical supply of the distributors and their control can be carried out individually or centrally.
  • the base comprises electrical connectors which cooperate with connectors of the distributors arranged thereon by the simple fact of mounting the distributors on the base.
  • each distributor has a connector to which an electric supply cable is connected.
  • IP 65 a seal against water and dust commonly known as IP 65. Its realization involves the establishment of pneumatic and electrical connections in a small footprint. , the trend being to offer the dispenser with equivalent performance in the lowest volume.
  • this first connector is mounted on a printed circuit which also carries a second connector for the electrical connection of the distributor to the base.
  • This printed circuit is oriented perpendicular to the plane of installation of the distributor on the base.
  • Conductors are also connected to the first connector and extend through the main block to the opposite end block.
  • the main unit carries on the front an electrical connector connected to two cables which are each engaged in a connector carried by the printed circuit of each intermediate unit, the aforementioned second connector for connection to the base being absent.
  • operating indicator lights are present on each end block and each intermediate block houses a manual control system making it possible to bypass the action of the pilot solenoid valve by pressing a push button.
  • WO2004 / 097227 A1 discloses a set of valves included in at least one main block surrounded by two end blocks having the communication connectors between the air source and the valves.
  • the end blocks carry a printed circuit comprising the electrical circuit controlling the valves.
  • the assembly is held in position by retaining elements, a protective cover and a seal.
  • a collector comprising a collection unit carrying at least one solenoid valve electrically connected to a printed circuit making it possible to control the solenoid valve.
  • the assembly can be closed by a cover and include a seal between the collection unit and the cover.
  • Requirement EP 2 110 562 A1 discloses a distributor comprising a main block housing the multi-way valve, a removable end block comprising the connection connector for an individualized supply of the distributor and a block intermediate placed between the two, housing the pilot solenoid valve.
  • end blocks with different connectors can be offered to the user. These end blocks each comprise a housing, housing a printed circuit to which said connector is attached. This printed circuit also carries contacts to ensure the electrical connection with the solenoid valve.
  • the illustrated distributor is monostable, comprising only one pilot solenoid valve.
  • the patent US 5,348,047 describes a distributor mounted on a sub-base in a configuration with centralized power supply.
  • the distributor is bistable, comprising two pilot solenoid valves each housed in a solenoid valve block, acting on a multi-way valve contained in a main block located between the solenoid valve blocks.
  • Each solenoid valve block has supply contacts on its face opposite the base.
  • a facade module covers the main block and descends on one side to the base to establish an electrical connection therewith.
  • This module comprises a printed circuit which ensures the electrical connection with the electrical contacts of the solenoid valve blocks and supports pins which engage in a connector of the base. These pins are soldered to the printed circuit perpendicular to it.
  • the facade module has a closed housing.
  • a facade module comprising a box which is fixed on two blocks of solenoid valves arranged on either side of a metal main block housing the multi-way valve. and also extending below the solenoid valve blocks, and two end blocks each extending the height of the assembly.
  • Each solenoid valve block has a housing overmolded over coil power pins.
  • the facade module houses a printed circuit which has contact surfaces for the pins and angled conductors at their end, intended to contact a power connector, external to the distributor.
  • the housing comprises a body provided at one end with an opening facing LEDs for indicating the operating state, carried by the printed circuit.
  • the body of the housing guides in movement two sliders making it possible to move, by a cam effect, the pins which act on a manual control system bypassing the action of the solenoid valves.
  • Guides molded with the body of the cover ensure the passage of the cover module by the pins.
  • the housing body is closed below by a base plate made of a material flexible, provided with a sealing lip around its periphery, pressing against the body of the cover and glued against the printed circuit.
  • Three perforated foam gaskets are glued to the external face of this base plate and are interposed between it, the solenoid valve blocks and the distributor power connector.
  • the aforementioned pins pass through the bottom plate between the two seals associated with the connections with the pins of the solenoid valve blocks.
  • the facade module has a narrowing between the two sliders to free access to the screws carried by the main block and used to fix it on the base.
  • a dispenser is relatively complex to manufacture, in particular due to the number of constituent parts of the facade module and their complexity. In addition, the latter leaves little room to provide it with additional functions such as a display of alphanumeric characters or the possibility of mounting an individualized power connector.
  • the patent US 7,438,088 teaches the production of a bistable distributor comprising a main block with a multi-way valve, two end blocks each comprising a manual control system and a pilot block housing two solenoid valves and a printed circuit for electrical connection thereof to a connector d 'individualized power supply, placed on a cover on the front.
  • the individualized power supply connector is carried by a printed circuit housed in an end block which is then devoid of the manual control system.
  • the electrical connection of this connector to the printed circuit located above the solenoid valves is made using pins soldered to the printed circuit housed in the end block, engaged in a double connector carried by the main block and receiving pins soldered on the printed circuit of the pilot block.
  • the solenoid valve coils are supplied from the printed circuit present under the cover at remote locations, close to the longitudinal ends of the printed circuit. In the presence of an individualized power connector on the front, little space remains available for a display. In addition, the pilot unit is complex to produce and the distributor is not intended for centralized supply.
  • the seal preferably has at least one cutout for establishing the connection between the first and second sets of contacts.
  • the seal preferably comes into contact with several of said blocks.
  • the invention offers numerous advantages.
  • the seal extends between the cover and the body of the distributor, coming into contact with the printed circuit, and the printed circuit is avoided in a module of facade closed by a base plate fixed in a sealed manner on a cover body, unlike one of the known solutions mentioned above.
  • the size of the dispenser is also reduced by such an assembly of the printed circuit and the way of obtaining the seal.
  • the cover is for example molded from thermoplastic material with a thickness less than or equal to 10 mm for a width of between 10 and 50 mm.
  • the invention makes it possible to use a thick gasket which can be compressed significantly by the reliefs of the cover, which guarantees tightness despite the mounting tolerances of the various blocks making up the body of the dispenser.
  • the seal can behave like a membrane coming directly into contact with the printed circuit over most of its surface.
  • the seal is advantageously locally compressed over more than 30% of its initial thickness, better still between 40 and 60% of its initial thickness.
  • the initial thickness of the seal may be greater than or equal to 1 mm, in particular between 1.8 and 2.2 mm.
  • the length of the seal is preferably greater than that of the printed circuit, the latter for example having a length of between 9 and 11 cm and the seal a length of between 11 and 13 cm.
  • the seal advantageously extends set back from the periphery of the cover, preferably by a distance greater than or equal to 1 mm, which allows the periphery of the cover to bear directly on the body of the distributor and thus to control the compression of the valve. gasket and the tightening of the cover on the distributor body.
  • the reliefs of the cover which bear on the seal may have a variable height relative to the bottom surface of the cover when the latter is defined by a slightly convex wall concave inward.
  • the height of the reliefs is for example between 1 and 4 mm.
  • the seal can be easily modified by simple cutting to open for example an additional passage to the printed circuit, in particular when an electrical connection must be established with the body of the distributor in the case of a centralized supply, by means of 'a connection element present in a housing of the body of the dispenser.
  • This housing can easily be closed in the case of an individualized supply on the front, thanks to the seal, by no longer providing this cutout facing said housing.
  • sealing is easily obtained regardless of the power supply mode, individualized or centralized.
  • Another advantage of the invention is to avoid the use of overmolded pins on the distributor body, since the seal seals the connection of the printed circuit to the solenoid valve (s) both from the outside towards the circuit board and from the outside to the distributor body. If necessary, ribs can be produced on the latter which compress the seal locally, such ribs being easily produced by molding material, in order to further improve the quality of the seal.
  • the height of these ribs is for example less than or equal to 1 mm
  • the presence of the seal also tends to prevent any infiltration of dust and water by the assembly clearance present between the different blocks towards the printed circuit.
  • the seal for example comes into contact with five different blocks along the body of the distributor.
  • the cover advantageously extends over the entire length of the body of the dispenser, and its periphery follows that of the body of the dispenser, when the dispenser is observed from above, in a direction perpendicular to the plane of the printed circuit.
  • the cover may include one or more openings for access to one or more manual control systems of the dispenser, simply by providing around each of these openings, on the internal face of the cover, a rib which bears on the gasket and making a corresponding cutout on the gasket. If necessary, a cutout of the printed circuit can also be made for the passage of the manual control system.
  • the presence of the manual control system (s) can be taken advantage of to facilitate the positioning of the seal during the manufacture of the dispenser, since it is sufficient to engage the corresponding cutout (s) of the seal on the manual control system (s) so that the seal is correctly positioned. A seal bonding operation is avoided, which further simplifies manufacture.
  • the seal has one or more cutouts to accommodate in its thickness one or more integrated circuits or other components soldered to the printed circuit, in particular SMD type components.
  • the body of the dispenser is arranged such that the contacts intended for supplying the solenoid valve (s) present in the body of the dispenser are all located in a middle zone of the face of the body of the dispenser located opposite the cover. .
  • a middle zone it should be understood that all the contacts are closer to the middle of the body of the distributor than to its longitudinal ends.
  • the presence of all the contacts connected to the actuating members in a central zone makes it possible to free up space elsewhere on the printed circuit, to place there, for example, a display and / or a connector intended for an individualized power supply.
  • the printed circuit can easily extend over a major part of the length of the cover without making it more difficult to obtain the desired seal.
  • the body of the distributor may have on its face facing the cover a recess formed in the thickness of its wall, making it possible to accommodate the ends of the pins of a component soldered to the printed circuit, in particular a centralized connector or a display. This avoids having to cut the corresponding pins after the soldering operation, while being able to use a single-sided printed circuit.
  • the contacts provided on the face of the body of the dispenser facing the printed circuit for supplying the solenoid valve (s), are preferably located in a range between 4/14 L and 10/14 L measured from a longitudinal end, better between 5/14 and 9/14 L.
  • connection between the printed circuit and the power contacts of the solenoid valve (s) present on the distributor body can be made using plug connectors, for example with a male connector on the distributor body and a female connector. on the printed circuit, or otherwise, for example using a male connector on the printed circuit and a female connector on the body of the distributor or using elements electrically connected to the solenoid valve (s) and coming in press on the printed circuit.
  • the use of a single-sided printed circuit reduces the cost compared to a double-sided circuit.
  • tracks of the printed circuit as contact surfaces for contacts coming to rest on them, for example springs used as connection elements between the printed circuit and the solenoid valve (s)
  • the tracks of the printed circuit are advantageously turned towards the body of the distributor.
  • LEDs can be soldered to the PCB on the track side.
  • the LEDs are preferably mounted in holes in the printed circuit and are so-called “inverted” models which emit their light towards the printed circuit.
  • the LEDs are advantageously grouped in pairs in each hole, being electrically mounted head-to-tail, which allows them to light independently of the polarity of the supply voltage to the solenoid valves.
  • the printed circuit is advantageously produced with holes waiting to receive the pins of at least one additional connector, and with the corresponding tracks.
  • the printed circuit has holes making it possible to accommodate an individualized power supply connector and holes making it possible to accommodate a connector intended to be connected to a centralized power supply connection element passing through the body of the distributor.
  • the same printed circuit can be used to produce a distributor with individualized supply or with centralized supply, which allows late differentiation during manufacture.
  • the presence of the contacts in the middle zone of the distributor body also makes it possible to produce a pilot unit housing the solenoid valves with a support for the solenoid valves in the form of a single piece, allowing easy assembly of the latter by simple fitting and having a collection function. of the exhaust from these solenoid valves.
  • This support can be molded in one piece from thermoplastic material.
  • the distributor body advantageously comprises, in addition to the pilot block and a multi-way valve block present under the pilot block, two intermediate blocks and two end blocks, one of which comprises a through housing that can accommodate a connection element intended for a supply. centralized, as mentioned above.
  • This connection element advantageously has a support made of thermoplastic material, designed to be fixed in said housing and to hold conductors intended to engage at their opposite ends respectively in a connector of the base and in a connector. of the printed circuit. These conductors are advantageously bent twice so as to offset their ends. The offset of the axes is for example between 5 and 15 mm. This makes it possible to have both a connection on the printed circuit while the latter is mounted in a centered manner on the cover and an eccentric connection on the face in contact with the base.
  • connection element is thus compatible with fixing the end block by screws, making it possible to obtain a homogeneous tightening of the assembly.
  • the support of the connection element preferably comprises a base carrying an O-ring seal and a column.
  • the conductors are connected by spacers, one of which is positioned facing the end of this column.
  • the base is pierced with holes for the passage of conductors and can be extended, on the side opposite to the column, by a tubular end cap protecting the conductors.
  • the conductors are for example tinned conductors, of non-circular cross section.
  • the conductors are preferably double bent at 45 ° in one direction and then in the opposite direction.
  • the base is preferably of oblong cross section, the end piece for connection in the base being eccentric on the base.
  • the spacers are preferably double, both for those located near the base and those near the free end of the column.
  • the height of the connection element is for example between 40 and 70 mm.
  • the figure 1 shows several distributors 1 according to the invention, mounted on a base 3, according to a so-called “island” assembly.
  • the base 3 comprises channels of a pneumatic circuit serving to control the actuators, these channels communicating with connection orifices opening out into a mounting plane of the distributors 1 on the base 3.
  • the latter also comprises channels of a pneumatic control circuit, with associated supply and exhaust ports, communicating with the distributors 1, in a manner known per se.
  • the base 3 comprises power supply connectors with which the connectors of the distributors, not visible on the figure 1 .
  • the figure 2 represents dispensers 1 with individualized supply.
  • the dispenser according to the invention shown in figures 3 to 5 comprises a valve body 2, on which is mounted a cover 110.
  • the valve body 2 comprises several assembled blocks, including a main block of multi-way valve 10, a pilot block 20, two end blocks 30 and 40 and two intermediate blocks 50.
  • the distributor 1 can be assembled to the base 3 using screws 70 bearing on the main block 10.
  • the end blocks 30 and 40 are assembled on the pilot 20 and main blocks 10 by screws 71 which cross the intermediate blocks 50.
  • the distributor 1 comprises, as can be seen in particular on figure 5 , a printed circuit 100 (also called a printed circuit board or PCB in English) and a sealing strip 80 which is interposed between the cover 110 and the body 2 of the distributor 1.
  • a printed circuit 100 also called a printed circuit board or PCB in English
  • a sealing strip 80 which is interposed between the cover 110 and the body 2 of the distributor 1.
  • the distributor 1 is bistable and the main unit 10 comprises, as shown in figure 3 , two pistons 11 which move in chambers 12 under the effect of sending compressed air into one or the other of these, thanks to solenoid valves 21 housed in the pilot unit 20. According to the position of a spool 14 moving with the pistons 12, different pneumatic communications of the multi-way valve are established, in particular with the base, in a manner known per se.
  • the main block 10 may include a metal casing, for example aluminum, and have a slight change in slope on its outer surface, materialized by a line 260 on the sides. figures 2 and 5 .
  • Each intermediate block 50 houses a manual control system 51 which comprises a valve making it possible to bypass the action of the associated solenoid valve 21 in order to carry out a test or during a maintenance operation.
  • this valve is controlled by turning an axis 52 opening out on the front, using a screwdriver.
  • Each axis 52 is guided in its movement by a barrel 342 molded from thermoplastic material with the body of the intermediate block 50.
  • the end block 40 located on the left on the figure 3 , serves only as an end piece and cooperates with the adjacent intermediate block 50 to complete the pneumatic control circuit.
  • the end block 40 carries a seal 48 for this purpose.
  • the end block 30 is visible more particularly on the figures 8 and 9 and comprises a body of thermoplastic material defining a through housing 31 for receiving a connection element 140, as will be detailed below.
  • the end block 30 has on its face 280 in contact with the adjacent intermediate block 50 channels 281 and a seal 282, to communicate the solenoid valve 21 with the main block 10 and complete the pneumatic control circuit.
  • the pilot unit 20 comprises a support 23, shown more particularly on the figures 10 to 13 and 21 , which defines two opposing housings 22 to each receive one of the solenoid valves 21.
  • the support 23 comprises an intermediate part 26 which has orifices 27 which communicate with the solenoid valve exhaust ports 290 and passages 291 for the pins 292 d 'power supply to the solenoid valves.
  • O-rings 293 and 294 can be placed at the interface between the solenoid valves 21 and the support 23, these gaskets being carried by the solenoid valves before they are placed on the support.
  • the support 23 is molded from a thermoplastic material.
  • the pins 292 can be connected in various ways to the printed circuit 100, for example by means of a small printed circuit 28, visible on the figure 3 , which carries on the top a connector 29.
  • the latter is for example a male connector which protrudes from the upper face 150 of the distributor body 2 through an opening 151 of the pilot unit 20.
  • the printed circuit 28 carries for example metal sockets in which the pins 292 of the solenoid valves 21 engage.
  • the support 23 can be modified in any suitable manner depending on the way in which the electrical connection is made between the contacts present on the body of the distributor and those of the printed circuit.
  • the pins of the solenoid valves can define the contacts of the body of the distributor, connection elements such as springs being applied on them and on the tracks of the printed circuit.
  • the solenoid valves are mounted on the support 23 by sliding them in the housings 22.
  • the orifices 27 of the support 23 communicate with each other and with an exhaust channel communicating with the base.
  • One or more passages 425 used during the molding operation can each be closed after manufacture by a metal element forcefully inserted therein, for example a ball 426, visible on the figure 5 .
  • the orifices 27 can be coaxial.
  • the connector 29 is used for the power supply of the two solenoid valves 21 and is positioned in a central region of the upper face 150 of the distributor body 2.
  • the printed circuit 100 carries components making it possible to perform the desired electronic functions. These may, for example, be integrated circuits 101 for protection against overvoltage and / or current limitation once the solenoid valve has changed state, the holding current being less than the current d. 'call. It can also be the indication of the state of the solenoid valves by means of LEDs 103.
  • the printed circuit 100 can be single-sided and the LEDs 103 mounted in holes 300 of the printed circuit, lighting upwards.
  • the LEDs 103 may be non-bipolar and mounted in pairs in said bores 300, being electrically connected head to tail.
  • the cover 110 includes light guides 301 facing the LEDs 103. These guides 301 can be relatively short, for example less than 5 mm in length, which avoids any significant light attenuation.
  • the presence of the printed circuit 100 in the upper part of the distributor makes it possible to dispense with any optical guide of great length, which could cause a loss of light output.
  • the printed circuit 100 may include, as illustrated in figure 14 in particular, a connector 105 intended to engage on the connection element 140.
  • the latter is shown more particularly in figures 7 to 9 and comprises a support 141, comprising a base 142 and a column 143 which connects inferiorly to the base 142.
  • connection element 140 also comprises electrical conductors 144, for example four in number, preferably arranged like the vertices of a square, engaged through the base 142 and through spacers 145 and 146, which may be simple. or doubles.
  • the spacer 145 is located just above the column 143 on the figure 8 and can rest on it when a push is exerted on the conductors 144.
  • the ends of the conductors 144 located above the spacer 145 form the connector 320 intended to engage in the connector 105 of the printed circuit 100.
  • the base 141 comprises an end piece 148 molded therewith, this end piece 148 forming with the end of the conductors which extend inside a supply connector 322 centralized which engages in the base 3 when fixing the distributor thereon.
  • the support 140 can be immobilized in the housing 31 using a key 149, which is partially housed in a housing 325 of the base 142. The latter can carry a seal 147 which allows it to seal the housing. 31 in the lower part.
  • the axes of the connectors 320 and 322 formed by the connection element 140 are parallel and spaced apart by a distance d of between 5 and 10 mm, for example.
  • the distance d is measured between the centers of the squares along which the connectors 144 are arranged at the level of each of the connectors 320 and 322.
  • the cover 110 comprises, on its internal face 340 facing the body of the distributor 2, a rib 112 which extends over the entire periphery of the printed circuit 100.
  • This rib 112 has a height which is greater than the thickness of the printed circuit. 100, and which may vary given the convex shape of the front wall of the cover 110.
  • the rib 112 extends at 113 and 114 around the shafts 342 for guiding the axes 52 of the manual control systems 51.
  • the rib 112 is molding coming with the cover 110.
  • the face 150 of the body 2 has, around the opening 151 and around that through which the housing 31 opens, ribs in the form of beads 152 and 153, intended to improve the sealing of contact with the seal 80.
  • a plate 154 may be disposed in a recess present around one of the barrels 342, as visible on the figure. figure 5 in particular, to locally define a bearing face for the seal 80 at the same level as the upper face of the support 23. This recess corresponds to recesses provided in the part to facilitate its molding.
  • the face 150 may have, as illustrated, a recess 156, the role of which will be specified later.
  • This recess has for example a flat bottom, a depth of between 0.5 and 1.5 mm and a circular contour.
  • the gasket 80 consists in the example considered of a closed cell foam plate, elastically deformable, for example 2 mm thick, and extends as illustrated over more than half the length of the cover 110, in this case over more than three quarters of the length thereof.
  • the seal 80 can be locally compressed to about 50% of its initial thickness by the cover 110, all around the printed circuit 100, when the latter is in place.
  • the gasket 80 has cutouts 81 for access to the manual control systems 51, a cutout 82 for the passage of the conductors 144 going to the connector 105 and a cutout 83 for the connector 109 of the printed circuit, intended to engage in the connector 29.
  • the seal 80 may also include cutouts 84 in which the components 101 can engage, so as not to compress the seal 80 at their level.
  • cutouts 84 in which the components 101 can engage, so as not to compress the seal 80 at their level.
  • the seal 80 may also have notches 360 on its periphery for the passage of the screws for fixing the cover 110 on the body 2.
  • connection element 140 is removed and replaced by a connector 220 mounted on the printed circuit 100, this connector 220 comprising a metal outer sleeve 221 fixed on the cover 110 and an insulating part 380 fixed with respect to the printed circuit 100.
  • the seal 80 is then produced without the cutout 82 so as to top off the housing 31.
  • the distributor 1 can be easily modified to switch from a centralized supply to an individualized supply.
  • the printed circuit 100 is produced with both holes 400 and the corresponding tracks for mounting the connector 105 and others 410 for mounting the connector 109, which allows a late differentiation at the production stage.
  • the recess 156 makes it possible to avoid cutting the pins 420 of the connector 220 when it is mounted on the printed circuit 100.
  • the seal 80 is produced, in the presence of the connector 220, with a cutout 87 which is superimposed on the recess 156.
  • cover 110 may have a recess 490 facing the pins of the connector 320 formed by the connection element, to receive the end of the conductors 144. This recess 490 is visible on the figure 6 , being formed in the thickness of the front wall of the cover 110, by molding, for example having a square outline and a flat bottom.
  • the presence of the supply contacts 29 of the pilot unit 20 in a central zone of the face 150 frees up space for mounting on the printed circuit of a display 240 and / or of a touch interface 241, as illustrated in FIG. figure 20 .
  • the dispenser 1 can in fact be produced, if desired, with advanced functions such as counting the number of cycles and with communication functions such as, for example, the display of the number of cycles.
  • the supply contacts of the solenoid valves of the pilot unit can be made otherwise, for example using electrically conductive springs replacing the connector 29 and bearing directly on the tracks of the printed circuit 100.
  • the distributor described with reference to the figures is bistable, comprising two solenoid valves. It is not beyond the scope of the present invention when the distributor is monostable, comprising only one solenoid valve.
  • the solenoid valve (s) used have an electromagnet, and include a solenoid.
  • the solenoid valves may include another actuator, for example of the piezoelectric type.
  • the seal 80 is preferably in the form of a single piece.
  • the solenoid valves used can be of any type.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Servomotors (AREA)
  • Valve Housings (AREA)

Claims (12)

  1. Elektropneumatischer Verteiler (1), aufweisend:
    - einen Körper (2), der mehrere zusammengesetzte Blöcke (20, 50, 30, 40, 10) aufweist, der mindestens ein Magnetventil (21) beherbergt und auf einer Fläche (150) eine Anordnung (29) erster Kontakte aufweist, die mit diesem Magnetventil (21) verbunden sind,
    - eine Abdeckung (110), die auf die Fläche (150) des Körpers (2) aufgesetzt ist,
    - eine Platine (100), die zwischen der Abdeckung (110) und dem Körper (2) untergebracht ist, wobei die Platine eine zweite Anordnung von Kontakten (109) trägt, die angeordnet sind, eine elektrische Verbindung mit der ersten Anordnung von Kontakten (29) herzustellen, und
    - eine Dichtung (80) in Form einer Lage aus einem elastisch verformbaren Material,
    dadurch gekennzeichnet, dass die Dichtung zwischen Reliefs (112) der Abdeckung zusammengedrückt ist, die die Platine und den Körper (2) des Verteilers umgeben, indem sie mit der Platine in Kontakt stehen.
  2. Verteiler nach Anspruch 1, wobei die Dichtung (80) mindestens einen Durchbruch (83) zur Herstellung der Verbindung zwischen der ersten (29) und zweiten (109) Kontaktanordnung aufweist.
  3. Verteiler nach Anspruch 1 oder 2, wobei die Dichtung (80) mit mehreren (30, 50, 20) der Blöcke in Kontakt steht.
  4. Verteiler nach einem der Ansprüche 1 bis 3, wobei die Dichtung (80) zwischen den Reliefs (112) und der Fläche (150) über mehr als 30 % ihrer Anfangsdicke, besser noch zwischen 40 und 60 % ihrer Anfangsdicke lokal zusammengedrückt ist.
  5. Verteiler nach einem der vorhergehenden Ansprüche, wobei die Abdeckung (110) eine oder mehrere Öffnungen für den Zugang zu einem oder mehreren Systemen (51) zur manuellen Steuerung des Verteilers aufweist, mit einer Rippe (113; 114), die um jede dieser Öffnungen herum auf der Innenfläche der Abdeckung auf der Dichtung (80) aufliegt und mit einem entsprechenden Durchbruch (82; 81) auf der Dichtung (80).
  6. Verteiler nach einem der vorhergehenden Ansprüche, wobei der Körper (2) des Verteilers so angeordnet ist, dass sich die Kontakte (29) eines Steuerblocks (20), die das oder die Magnetventile aufweisen und für die Versorgung des oder der Magnetventile bestimmt sind, alle in einem Mittelbereich der Fläche (150) des Körpers des Verteilers befinden, die sich gegenüber der Abdeckung (110) befindet.
  7. Verteiler nach einem der vorhergehenden Ansprüche, wobei der Körper (2) des Verteilers auf seiner Fläche (150), die der Abdeckung (110) zugewandt ist, eine Verstärkung (156) aufweist, die es gestattet, die Enden der Pins (420) eines Bauelements aufzunehmen, das auf die Platine (100) gelötet ist, insbesondere einen zentralisierten Konnektor (220) oder eine Anzeigeeinrichtung (240).
  8. Verteiler nach einem der vorhergehenden Ansprüche, wobei die Platine (100) einseitig ist, wobei die LEDs (103) insbesondere auf der Seite der Leiterbahnen auf die Platine (100) aufgelötet sind, wobei die LEDs in Löchern (300) der Platine angebracht sind und ihr Licht hauptsächlich zu den Löchern der Platine hin abgeben, wobei die LEDs in Zweiergruppen in jedem Loch (300) angeordnet sind, wobei sie elektrisch antiparallel geschaltet sind.
  9. Verteiler nach einem der vorhergehenden Ansprüche, wobei die Platine (100) mit Löchern, die bereit dafür sind, die Pins mindestens eines Zusatzkonnektors aufzunehmen, und mit entsprechenden Leiterbahnen hergestellt ist.
  10. Verteiler nach einem der vorhergehenden Ansprüche, aufweisend einen Träger (23) für zwei Magnetventile (21) in Form eines Einzelteils, der eine Anbringung letzterer durch einfaches Aufstecken gestattet und eine Sammelfunktion des Auslasses dieser Magnetventile innehat.
  11. Verteiler nach einem der vorhergehenden Ansprüche, wobei der Körper (2) des Verteilers außer einem Steuerblock (20) und einem Hauptblock (10) eines Mehrwegeventils, der unter dem Steuerblock (20) vorhanden ist, zwei Zwischenblöcke (50) und zwei Endblöcke (30, 40) aufweist, wovon einer (30) eine durchgehende Aufnahme (31) aufweist, die ein Verbindungselement (140) aufnehmen kann, das für eine zentralisierte Versorgung bestimmt ist, wobei das Verbindungselement einen Träger (141) aufweist, der angeordnet ist, sich in der Aufnahme (31) zu fixieren und Leiter (144) an Ort und Stelle zu halten, die dazu bestimmt sind, an ihren gegenüberliegenden Enden in einen Konnektor eines Sockels (3), auf dem der Verteiler angebracht ist, bzw. in einen Konnektor (105) der Platine (100) einzugreifen, wobei die Leiter (144) insbesondere doppelt gebogen sind, um ihre Enden axial zu verschieben.
  12. Verteiler nach Anspruch 11, wobei der Träger (141) des Verbindungselements (140) einen Fuß (142) aufweist, der eine Dichtung (147) und eine Säule (143) trägt, wobei die Leiter (144) durch Abstandshalter (145, 146) verbunden sind, wovon einer gegenüber dem freien Ende der Säule (143) positioniert ist.
EP13184014.2A 2012-09-12 2013-09-11 Elektropneumatischer Verteiler Active EP2708758B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1258578A FR2995371B1 (fr) 2012-09-12 2012-09-12 Distributeur electropneumatique.

Publications (2)

Publication Number Publication Date
EP2708758A1 EP2708758A1 (de) 2014-03-19
EP2708758B1 true EP2708758B1 (de) 2021-11-17

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ID=47089025

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Application Number Title Priority Date Filing Date
EP13184014.2A Active EP2708758B1 (de) 2012-09-12 2013-09-11 Elektropneumatischer Verteiler

Country Status (3)

Country Link
EP (1) EP2708758B1 (de)
ES (1) ES2905222T3 (de)
FR (1) FR2995371B1 (de)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222637C2 (de) * 1992-07-10 1998-12-10 Festo Ag & Co Ventilanordnung
DE4309695A1 (de) * 1993-03-25 1994-09-29 Festo Kg Steuereinrichtung für ein Mehrwegeventil
DE19519888A1 (de) * 1995-05-31 1996-12-05 Bosch Gmbh Robert Hydraulikaggregat mit umlaufender Dichtung
US6883874B2 (en) * 2000-09-14 2005-04-26 New York Air Brake Corporation Pressure sensor module
GB2416604B (en) * 2003-05-01 2006-10-04 Imi Vision Ltd Valve
JP4228370B2 (ja) * 2004-10-25 2009-02-25 Ｓｍｃ株式会社 電磁パイロット式切換弁
WO2009118029A1 (de) * 2008-03-28 2009-10-01 Festo Ag & Co. Kg Ventilbatterie
EP2110562B1 (de) * 2008-04-15 2011-05-04 FESTO AG & Co. KG Ventilanordnung
US8905071B2 (en) * 2010-10-26 2014-12-09 Air Lift Company Integrated manifold system for controlling an air suspension

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR2995371B1 (fr) 2015-06-19
ES2905222T3 (es) 2022-04-07
FR2995371A1 (fr) 2014-03-14
EP2708758A1 (de) 2014-03-19

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