DE102014006511A1 - valve assembly - Google Patents

Abstract

A valve arrangement (1) is proposed which has at least one connection body (4), a valve unit (5) and an auxiliary unit (6). The terminal body (4) is provided with a terminal body attachment interface (8) which is formed in unison with a second valve unit attachment interface (25) arranged on the valve unit (5). The valve unit (5) is further formed with a first valve unit attachment interface (24) fitting to the terminal body attachment interface (8) so as to be connectable with the terminal body (4) to a valve unit terminal body assembly. The auxiliary unit (6) is equipped with an auxiliary unit mounting interface (45), with the help of which it can be fixed to the second valve unit mounting interface (25) of the valve unit (5) and with which they expediently alternatively also at the terminal body mounting interface (8 ) of the connection body (4) can be attached. Such a modular valve assembly (1) can be very variable to assemble valve assemblies.

Description

The invention relates to a valve arrangement, with at least one connection body, on the outside of which at least one connection body attachment interface is formed, at which at least one connecting body passage passes through the connection body channel, and with at least one valve unit, which has a valve housing, on the outside one to the connection body Attachment interface fitting first valve unit mounting interface is formed at the at least one valve channel of the valve unit opens, which is connected to a valve housing formed in the housing interior, in which is a by means of an electric drive device of the valve unit driven movable valve member and with which also one Casing wall of the valve housing passing through the wall opening communicates, wherein the valve unit and the connection body by joining the first valve unit mounting interface and the connection sskörper attachment interface to a valve unit connector body assembly are unified.

One from the DE 33 38 418 C2 known valve assembly of this type is designed as a solenoid valve and has a multi-part connector body, in which a valve unit designed as a cartridge is used. The valve unit has a housing which encloses a housing interior, in which a by means of an electromagnetic drive means movable valve member is arranged. The valve member cooperates with a valve seat and, depending on its position, is capable of selectively releasing or shutting off a valve channel assigned to the valve seat, this valve channel communicating with a connector body channel formed in the connector body. The housing wall of the valve housing is also penetrated by acting as a vent passage wall opening, which is also connected to the housing interior.

From the DE 36 34 349 C1 is a known from several independently electromagnetically switchable directional control valve assembly known. The assembly has a base member having a plurality of receiving openings in which fluid channels open and in each of which a valve seat is formed. The assembly also includes a plurality of directional valve actuators that are insertable into the receiving openings to form a solenoid valve together with the valve seat formed therein.

The DE 10 2009 033 585 A1 describes an electrically operable valve that has an electro-dynamic drive device. This drive device is accommodated in a housing interior of a valve housing and has a permanent magnet unit which can be fastened to the valve housing and a coil unit which can be driven in this respect and which can be driven by energizing a coil. A movement-coupled with the coil unit valve member can be moved by means of the drive device, so that it optionally occupies a closing a valve port closed position or the valve channel releasing open position.

The invention has for its object to provide a compact and variably usable valve assembly.

To achieve this object, it is provided in connection with the features mentioned above, that on the outside of the valve housing of the valve unit, a further, second valve unit attachment interface is formed, opens to the communicating with the housing interior wall opening and which is designed in accordance with the connection body attachment interface and in that the valve assembly includes at least one accessory unit having an auxiliary unit mounting interface that mates with the second valve unit mounting interface, and that is connectable to the auxiliary unit valve unit assembly by assembling the auxiliary unit mounting interface and the second valve unit mounting interface with the valve unit.

The valve assembly thus includes an electrically operable valve unit, which is provided on its outside with two for better distinction as a valve unit attachment interfaces designated attachment interfaces. The first valve unit mounting interface mates with a mounting interface formed on the connector body and therefore referred to as a connector body mounting interface, so that the valve unit can be attached to the connector body to obtain a valve unit connector body assembly. In this case, at least one valve channel communicates with at least one connection body channel, so that a fluid flow in these fluid channels can be controlled by means of the valve member of the valve unit. In addition, the valve assembly has at least one auxiliary unit attachable to a second valve unit mounting interface, this second valve unit mounting interface having the same structure as the connector body mounting interface, which enables among other things a very cost-effective production. The attachment unit may be attached to the second valve unit mounting interface by means of a supplemental unit mounting interface formed thereon to form an accessory unit valve assembly. Are all components together? united, there is a valve assembly, which is composed of a connection body and at least one valve unit and at least one additional unit. By using different additional units, the functional range of the valve arrangement can be influenced and made very variable. Nevertheless, the valve arrangement can be realized with compact dimensions.

Advantageous developments of the invention will become apparent from the dependent claims.

The two valve unit attachment interfaces are expediently formed with mutually coaxial alignment on opposite end faces of the valve housing of the valve unit. In this way, the second valve unit mounting interface with assembled valve unit connector body assembly is easily accessible and can be easily equipped with the desired auxiliary unit. Also, an exchange of the auxiliary unit to achieve a different functionality of the valve assembly is conveniently possible in this way.

Particularly advantageous is a valve arrangement in which the auxiliary unit attachment interface fits not only to the second valve unit attachment interface but also to the terminal body attachment interface. In this way, it is possible to attach one and the same additional unit to the valve unit attachment interface of the valve unit, optionally to form an auxiliary unit-valve unit assembly, or to attach the auxiliary unit to the terminal-body attachment interface in order to construct an auxiliary unit-connector body without the intervention of the valve unit. To realize assembly. In this way, the range of functions of the valve assembly is again significantly expanded. If a connection body is equipped with a plurality of connection body attachment interfaces, it is possible to combine the connection body with at least one valve unit and at least one additional unit. In this case, it is also possible to equip the at least one valve unit in turn at its second valve unit mounting interface with an additional unit.

By providing a plurality of valve units and auxiliary units and in particular also a plurality of connecting bodies, it is thus possible to provide a modular system on the basis of which valve arrangements with different functionality and different equipment dimensions can be realized in a very variable manner.

It is considered to be particularly expedient if the connection body has electrical conductor means which are referred to as terminal body conductor means for better distinction and which have electrical connection body contact means arranged on the connection body attachment interface. In combination, the valve unit is also provided with electrical conductor means, referred to as valve unit conductor means, which serve to electrically actuate the electrical drive means for which purpose they are electrically connected to the electrical drive means. These electric valve unit conductor means also include first valve unit contact means disposed on the first valve unit mounting interface and second valve unit contact means arranged on the second valve unit mounting interface. If a valve unit connection body assembly is assembled, the electrical connection body contact means are in electrical connection with the first valve unit contact means, so that the possibility is opened to electrically actuate the electric drive device using the connector body conductor means formed on the connection body. The electrical connection measures at the place of use of the valve arrangement can consequently be limited to an electrical contacting of the connection body conductor means of the connection body.

The second valve unit contact means disposed on the second valve unit mounting interface are available to allow electrical connection to a correspondingly adapted auxiliary unit. If an auxiliary unit which has no electrical equipment is attached to the second valve unit mounting interface, the second valve unit contact means remain inoperative. This applies, for example, in the event that a sealing plug closing off the wall opening is mounted as an additional unit or a silencing unit whose purpose is to damp the flow noise from compressed air flowing out through the wall opening during operation of the valve arrangement.

Conveniently, the valve assembly is equipped with at least one auxiliary unit which has an electrical equipment and which is electrically connected to the valve unit conductor means produced in the auxiliary unit-valve unit assembly. For this purpose, the auxiliary unit is equipped with auxiliary electrical unit conductor means having auxiliary electrical unit contact means disposed on the auxiliary unit mounting interface. These auxiliary unit contact means are electrical in a manufactured auxiliary unit-valve unit assembly Connection with the second valve unit contact means arranged on the second valve unit attachment interface. However, it is also advantageous that a direct connection to the electrical terminal body conductor means can be produced by means of this electrical auxiliary unit contact means when the auxiliary unit without an intermediate valve unit is mounted directly on the connector body to form an auxiliary unit-connector body assembly.

The cooperating contact means of the various components of the valve assembly are in particular designed so that they automatically come into contact with each other when the respective components are fastened together using the attachment interfaces. In this way, separate electrical connection measures are unnecessary. When joining the attachment interfaces, both the mechanical mutual attachment and the mutual electrical connection is made.

At least one auxiliary unit is equipped with electrical functional means connected to the auxiliary electrical unit conductor means, which can be of any type. The type of functional agent is based on the desired functionality. Thus, for example, a training as a display means and / or as a sensor means and / or as an electric drive means is conceivable, this list should not be considered as exhaustive. By means of appropriate equipment with functional means, an auxiliary unit can thus be, for example, a status display unit serving to display at least one operating state of the valve unit and / or a sensor unit and, in particular, a pressure sensor unit. For example, the auxiliary unit can be used to indicate whether the valve unit is actuated or not. It is also possible to use for monitoring the pressure prevailing in the housing interior fluid pressure. An embodiment of the electrical functional means as an electric drive device is particularly advantageous if a further valve unit is provided as an additional unit, which is designated for better distinction as an additional valve unit. In this way, there is the advantageous possibility of combining the functionality of a plurality of interconnected valve units in order to enable higher valued valve functions. If, for example, the valve unit and the additional valve unit combined with it have a 2/2-way functionality, a 3/2-way functionality or even a 3/3-way functionality can be realized by a coordinated operation.

It is considered particularly advantageous if the additional valve unit has the same structure as the valve unit itself. Expediently, the valve arrangement contains a plurality of valve units which can each be used either as a valve unit which can be mounted directly on the connector body or as an additional valve unit. In this case, moreover, it is possible to attach to the second valve unit mounting interface of the additional valve unit in turn an auxiliary unit of the type described.

The manner of the technical realization of the electrical conductor means is in principle arbitrary. However, it is considered particularly expedient if these electrical conductor means are at least partially formed as strip conductors. In this case, an implementation of the various components of the valve arrangement as MID components is particularly suitable, where "MID" stands for "Molded Interconnect Device".

It is regarded as advantageous if the fastening interfaces of the various components of the valve arrangement are designed to cooperate in the manner of bayonet closures. In this connection, each attachment interface is formed as a bayonet connection device, in particular such that the attachment body attachment interface and the second valve unit attachment interface define a female bayonet connection type and the first valve unit attachment interface and the auxiliary unit attachment interface each define a male bayonet connection type. The design of the mounting interfaces as a bayonet connection devices allows a fast and secure installation and, if necessary, disassembly of the components in the context of a combined plug-and-turn operation. As far as the components of the valve assembly are equipped with electrical conductor means, their electrical contact means are expediently formed on the form-fitting engaging behind components of the bayonet connection means, which can be done for example by metallization of the abutting surfaces. In this way, it is ensured that the electrical connection between the components to be fastened to each other is produced directly when producing the respective bayonet connection.

Each valve unit can optionally be designed as a switching valve or as a proportional valve. Particularly advantageous is an embodiment of the valve unit corresponding to a 2/2-way valve.

The valve unit can be used in conjunction with a connected consumer both as a vent valve and as a vent valve. Does the valve assembly includes a valve assembly consisting of a valve unit and a Additional valve unit, the valve unit is preferably used as a vent valve and the additional valve unit as a vent valve. In this way, a consumer connected to a connection channel of the connecting body can optionally be ventilated, that is to say subjected to compressed air or vented, thus relieved of pressure. If the valve units are designed in proportional valve technology, there is the advantageous possibility of performing both the ventilation process and the venting process with variable flow rate.

Particularly advantageous is a valve arrangement in which the at least one valve unit, even in the case of an additional valve unit, has an electrodynamic drive device, in which the actuating force responsible for the positioning of the valve member is based on the so-called Lorentz force. An advantage of this construction is that the valve characteristic in the used range is approximately linear, i. H. There is a direct relationship between the deflection of the valve member and the instantaneous current. With an electrodynamic drive device, the valve unit can also be operated with high dynamics.

Conveniently, the electrodynamic drive device includes a stationary with respect to the valve housing arranged permanent magnet unit and a movable in this respect coil unit, wherein the coil unit has a arranged on a coil carrier annular coil which dips coaxially into the permanent magnet unit. One can speak here of a diving coil concept. By electrical energization of the coil is achieved that under construction of the Lorenzkraft the coil more or less immersed in the permanent magnet unit and thereby a driving movement of the coil unit is caused relative to the permanent magnet unit, through which the valve member is moved. The valve member is expediently located opposite a valve seat which surrounds the channel mouth of a valve channel opening into the interior of the housing. This valve channel communicates with a connector body channel in the case of a valve unit connector body assembly. If the valve unit is an additional valve unit, its valve channel communicates with the wall opening of the valve unit used in this case as a fluid channel.

The valve member is combined with the coil carrier expediently to form a unit. It consists for example of a sealing element which is attached to the bobbin. But it can also be formed directly from a portion of the bobbin.

It is possible to fix the valve member by means of a flexible membrane statically sealed on the valve housing to fluidly separated from the fluid to be controlled valve chamber with respect to the remaining portion of the housing interior, in which the electrically actuable drive means is housed. Such a membrane can be clamped fluid-tight in an electro-dynamic drive device, for example, between the iron core of the permanent magnet unit and a housing bottom of the valve housing.

The valve unit and possibly additional valve unit is expediently equipped with spring means by which the valve member is biased into a basic position, which is in particular a shut-off the associated valve channel closed position. The spring means in conjunction with an electrodynamic drive device expediently act between the valve housing and the coil carrier. Preferably, the valve unit and optionally the additional valve unit is also equipped with adjusting means which allow a variable specification of the spring bias of the spring means.

The invention will be explained in more detail with reference to the accompanying drawings. In this show:

1 a preferred embodiment of the valve assembly according to the invention in a perspective view, wherein a composite of a connector body, a valve unit and an auxiliary unit valve assembly is apparent,

2 the valve assembly 1 in a longitudinal section along section line II-II 1 .

3 a single representation of several components of the valve assembly prior to assembly, which is illustrated by arrows, in which way the various components can be joined,

4 a valve assembly realized with the valve assembly in a perspective view, which is composed of a connection body, a valve unit, an additional valve unit and a further auxiliary unit,

5 the valve assembly or valve assembly off 4 in an exploded view before assembling the various components, and

6 a longitudinal section of the valve assembly 4 according to section line VI-VI.

In the drawing is a valve assembly 1 illustrated having a plurality of components that are variably combinable with each other to one or more valve assemblies 2 . 3 to obtain. The various individual components of the valve assembly 1 are in a preferred selection in 3 illustrated. The 1 and 2 show a composite therefrom first valve assembly 2 while the 4 to 6 a second valve assembly composed thereof 3 illustrate.

The valve arrangement 1 contains at least one connector body 4 , at least one electrically operable valve unit 5 and preferably a plurality of additional units 6 , One of the optional units 6 is preferably designed as an electrically operable valve unit and be as an additional valve unit 7 designated. This additional valve unit 7 is preferably identical to the valve unit 6 designed so that information on the valve unit 5 also for the additional valve unit 7 apply, unless otherwise stated in individual cases.

If with the valve assembly 1 only a first valve assembly 2 can be realized on the additional valve unit 7 be waived. Also the number of other additional units 6 can in this case be limited to one piece. In principle, however, it is advantageous if the valve arrangement 1 a plurality of mutually identical and / or mutually different additional units 6 has, as needed, with the other components of the valve assembly 1 can be combined. It is particularly advantageous if the valve assembly 1 over several valve units 5 features. Also, it can not only as shown on a single connector body 4 but over several connector body 4 feature. There is also the possibility of the valve assembly 1 with a connection body 4 equip the possibility of a multiple equipping with valve units 5 offers, namely at spaced mounting areas. The embodiments is a connection body 4 basis, the only one for equipping with a valve unit 5 having trained mounting area.

The connection body 4 has in a mounting area on its outer side via a mounting interface, which differs from further yet to be explained mounting interfaces as a connector body mounting interface 8th is designated. At this connector body mounting interface 8th open out several fluid channels, which the connection body 4 enforce and therefore as Anschlußkörperkanäle 12 be designated. By way of example, these are two connection body channels 12 , which in the following also as first and second connection body channel 12a . 12b be designated. The connecting body preferably has 4 in the area of the connection body mounting interface 8th via a recess 13 to which the connection body channels 12 open out. On the other end, each connection body channel opens 12 with a connection opening 14 away from the connector body mounting interface 8th to an outer surface of the terminal body 4 and is there with suitable connection means - for example, a thread - provided to connect to external device leading fluid lines can.

In the embodiment, it is provided that the valve assembly 2 . 3 when used with a first connector body channel 12a to a pressure source and with its second connection body channel 12b connected to a consumer to be actuated, for example, a fluid-operated drive. The pressure source provides a pressure medium, which is used to operate the consumer and which is in particular compressed air.

The valve unit 5 is electrically actuated and has an electrically actuable drive device 15 on. The valve unit 5 also has a valve body 16 that the electrical connection device 15 carries, wherein it is advantageous if the connection device 15 as in the embodiment, in one of a housing wall 17 of the valve housing 16 enclosed housing interior 18 inside the valve body 16 is housed. The valve unit 5 also contains a preferred also in the housing interior 18 arranged valve member 22 that by the drive device 15 to a movement indicated by a double arrow 23 is drivable to it relative to the valve body 16 position differently and thereby influence a fluid flow.

The valve housing 16 is externally equipped with a mounting interface, which is designated to distinguish other mounting interfaces as the first valve unit mounting interface. The same fits with the connector body mounting interface 8th together, so there is a possibility of the valve unit 5 by assembling the first valve unit mounting interface 24 and the terminal body attachment interface 8th at the connection body 4 to attach, in particular in a detachable manner. So assembled and attached together form the valve unit 5 and the connection body 4 a valve unit connector body assembly 26 ,

The valve unit is preferred 5 at the first valve unit mounting interface 24 with a lead 27 provided with manufactured valve unit connector body assembly 26 in the recess 13 of the connection body 4 dips. The lead 27 virtually forms a housing base of the valve housing 16 ,

The housing wall 17 is at least one of the first valve unit mounting interface 24 outside on the valve body 16 opening out the valve channel 28 interspersed. The number of valve channels 28 corresponds to the number of on the connector body mounting interface 8th ausmündenden connection body channels 12 , Accordingly, the embodiment is two valve channels 28 , which in the following also as the first valve channel 28a and as a second valve channel 28b be designated. The valve channels 28 open so distributed to the first valve unit attachment interface 24 from that with assembled valve unit connector body assembly 26 the first valve channel 28a under seal with the first connection body channel 12a communicates and the second valve channel 28b under sealing with the second connection body channel 12b is in fluid communication.

In the embodiment, the projection has 27 For this purpose, a stepped outer contour and has an integral, axially projecting pipe socket 32 on, on the front side of the first valve channel 28a opens out and the mouth of the first connection body channel 12a dips.

For fluid-tight interaction with the connection body 4 and in particular with the wall of the recess 13 carries the lead 27 on its outer circumference several sealing rings 33 ,

The housing interior 18 facing channel mouth of at least one valve channel 28 is from one on the housing wall 17 of the valve housing 16 arranged annular valve seat 34 framed. By way of example, this applies to the channel mouth of the first valve channel 28a to. This valve seat 24 lies in the axial direction of a longitudinal axis 35 the valve unit 5 the valve member 22 across from. As part of the labor movement 23 can the valve member 22 optionally in a sealed at the valve seat 34 adjacent closed position or be positioned in at least one of the valve seat lifted open position. In the closed position, the first valve channel 28a locked off, while in each open position through the housing interior 18 through with the second valve channel 28b is in fluid communication.

The electric drive device is preferred 15 so in the housing interior 18 housed that they the housing interior 18 axially divided into two space sections, as the first and second valve chamber 36 . 37 be designated. The two valve channels 28a . 28b open into the first valve chamber 36 a, in which also the valve member 22 located. The drive device 15 is suitably in the manner of a partition between the two valve chambers 36 . 37 , However, the drive device has 15 preferably at least one axial opening 38 , through which expediently a continuous fluid connection between the two valve chambers 36 . 37 is present.

It should be ensured that the drive device 15 not with the one in the first valve chamber 36 flowing fluid comes into contact, the valve member 22 by means of a not shown elastic sealing membrane on the valve housing 16 be fixed, in particular between the drive device 15 and a bottom wall portion 42 the housing wall 17 is clamped. The bottom wall section 42 is the section of the housing wall 17 that the interior of the housing 18 at the first valve unit mounting interface 24 limited axial side.

The valve housing 16 has on its outside in addition to the first valve unit mounting interface 24 a second valve unit mounting interface 25 on. The same is expediently located on an axial end face of the valve housing 16 related to the longitudinal axis 35 opposite to that end face at which the first valve unit mounting interface 24 located. The two valve unit attachment interfaces are preferred 24 . 25 aligned coaxially with each other. They also preferably have in axially opposite directions.

The second valve unit mounting interface 25 is identical to the first valve unit mounting interface 24 educated. Accordingly, it also includes an axial recess in the embodiment 13 , A the housing wall 17 penetrating wall opening 43 flows one end into the housing interior 18 and at the other end to the second valve unit mounting interface 25 out. Preferably, it communicates on the part of the housing interior 18 with the second valve chamber 37 and flows from the second valve unit mounting interface 25 into the recess 13 one.

The wall opening 43 is coaxial with the pipe socket 32 formed and has the same diameter as this pipe socket 32 , The housing wall 17 of the valve housing 16 has a bottom wall section 42 axially opposite ceiling wall section 44 , which is the second valve chamber 37 in the connection device 15 limited axially opposite area. The ceiling wall section 44 is expediently part of a housing cover 16a of the valve housing 16 to which the second valve unit mounting interface 25 is formed and at a the first Valve unit mounting interface 24 having housing lower part 16b is fixed, for example by an adhesive connection.

The valve arrangement 1 contains at least one and preferably several additional units 6 each one as an optional unit attachment interface 45 have designated attachment interface. Each optional unit mounting interface 45 fits with the second valve unit mounting interface 25 together so that it is possible to have any additional unit 6 with the valve unit 5 to an auxiliary unit-valve unit assembly 46 to assemble by the accessory mounting interface 45 with the second valve unit mounting interface 25 is united. This assembly connection is expediently solvable.

By joining a connector body 4 , a valve unit 5 and an optional unit 6 with the help of the explained mounting interfaces 8th . 24 . 25 . 45 can be a first valve assembly 2 be assembled as exemplified in 1 and 2 is illustrated.

Preferably, the auxiliary unit mounting interface fits 45 also with the connection body mounting interface 8th together. This offers the optional option, instead of a valve unit 5 immediately an optional unit 6 at the connection body mounting interface 8th of the connection body 4 to fix. The embodiment is designed accordingly, wherein the corresponding mounting option in 3 by two dot-dash mounting arrows 47a is indicated. Includes a connector body 4 multiple connector body attachment interfaces 8th , it is possible, with appropriate purpose, some of them with a valve unit 5 and some others directly with an optional unit 6 to equip. One directly on the connection body 4 mounted auxiliary unit 6 forms together with the connection body 4 an accessory unit connector body assembly.

In an advantageous embodiment of the valve arrangement 1 is at least one additional unit 6 as an additional valve unit 7 educated. In the 4 to 6 illustrated second valve assembly 3 is both with a valve unit 5 as well as with an additional valve unit 7 fitted. It is particularly advantageous if the additional valve unit 7 the same structure has as the valve unit 5 , This at least as far as it is equipped with mounting interfaces. This applies to the embodiment.

An example is the additional valve unit 7 with a first valve unit mounting interface 24 equipped with the optional unit mounting interface 45 forms. Des offers the option of the additional valve unit 7 as an additional unit 6 at the second valve unit mounting interface 25 the valve unit 5 to assemble or the additional valve unit 7 in the manner of a valve unit 5 directly on the connection body 4 to install. Obviously there is the advantageous possibility of several similar valve units within the valve assembly 1 then, as needed, as a valve unit 5 or as one with a valve unit 5 to be combined additional valve unit 7 can be used.

Is the auxiliary valve unit 7 according to the third valve assembly 3 of the 4 to 6 at the valve unit 5 mounted, is a coaxial series connection of the valve unit 5 and the auxiliary valve unit 7 in front. In the process, the pipe socket emerges as an example 32 the additional valve unit 7 under seal in the wall opening 43 the adjacent valve unit 5 one. Overall, the projection emerges 27 the additional valve unit 7 into the recess 13 the second valve unit mounting interface 25 coaxial.

Because the additional valve unit 7 preferably identical to the valve unit 5 is formed, further explanations are unnecessary at this point. Corresponding components were in the drawing at the optional unit 6 with the same reference numerals as in the valve unit 5 provided, but supplemented by an apostrophe or an apostrophe.

As the first valve channel 28a . 28a ' frontally on the pipe socket 32 . 32 ' opens out, lies in with the valve unit 5 assembled state of the auxiliary valve unit 7 a fluid connection between the first valve channel 28a ' the additional valve unit 7 and the housing interior 18 or the second valve chamber 37 the valve unit 5 in front.

The second valve assembly according to 4 to 6 can already be in unequipped state of the second valve unit mounting interface 25 ' the additional valve unit 6 operate. In this case, the second valve chamber communicates 37 ' the additional valve unit 7 through the wall opening 43 ' through directly with the atmosphere. Thus, there is the possibility of the valve unit 5 as a vent valve and the auxiliary valve unit 7 to operate as a vent valve, with both valve units 5 . 7 have a 2/2-way function. Depending on the configuration of the drive device 15 . 15 ' There is also the option of the valve unit 5 and the auxiliary valve unit 7 to operate as a switching valve or as a proportional valve. A use as a proportional valve manifests itself in that the existing in the open position distance between the valve member 22 . 22 ' and the associated valve seat 34 . 34 ' is variably definable to allow the flow-through fluid different flow rates.

By coordinated control of the valve unit 5 and the auxiliary valve unit 7 can be the second valve assembly 3 operate like a 3/2-way valve or a 3/3-way valve.

When operating the second valve assembly 3 can the valve member 34 the valve unit 5 in an open position and at the same time the valve member 34 ' the additional valve unit 7 be positioned in a closed position. As a result, in the first connection body channel 12a fed pressure medium through the first valve chamber 36 the valve unit 5 through into the second connection body channel 12b overflow and from there according to the dashed flow arrow 48a to a connected consumer to ventilate it. The housing interior 18 is separated from the atmosphere, because the valve member 34 ' the additional valve unit 7 the first valve channel 28a ' the additional valve unit 7 closes.

To the to the second connection body channel 12b venting connected consumers, the valve member 22 the valve unit 5 in the first valve channel 28a Closing closed position while at the same time the valve member 34 ' the additional valve unit 7 is moved into an open position. This may cause a vent flow according to the dotted flow arrow 48b in 6 form. The over the second connection body channel 12b Backflowing compressed air enters the first valve chamber 36 and from there through the axial opening 38 through into the second valve chamber 37 from where they pass through the first valve channel 28a ' and the housing interior 18 the additional valve unit 7 through to the open wall opening 43 ' through which it flows out to the atmosphere.

A constant volume of fluid may be in the second connection body channel 12b and the connected consumer are locked by both the valve unit 5 as well as the additional valve unit 7 be switched to the closed position.

If the exit sound of the compressed air flowing to the atmosphere is to be reduced, it is possible to connect to the second valve unit mounting interface 25 the additional valve unit 7 one as a silencing unit 6a trained additional unit 6 to fix. The same contains one of the outgoing compressed air under sound attenuation through-flow muffling channel 52 , in the course of which expediently a sound-damping material 53 is arranged, through which the compressed air flows.

At the in 1 and 2 illustrated first valve assembly 2 is at the second valve unit mounting interface 25 one as a stopper 6b trained additional unit 6 with its optional unit mounting interface 45 attached. The sealing plug 6b closes the wall opening 43 fluid-tight and therefore also seals the associated housing interior 18 fluid tight to the environment from. Preferably, the stopper has 6b a locking projection 54 , which expediently with a seal 55 is provided and under radial seal in the wall opening 43 intervenes.

Thus equipped is the first valve assembly 2 as a 2/2-way valve operable by depending on the switching position of the valve member 34 the two connection body channels 12a . 12b either separated from each other or fluidly connected to each other.

To the electric drive device 15 the valve unit 5 can by means of generally with reference numeral 56 designated electrical conductor means 56 an actuating voltage can be applied from the outside. This can be done, for example, that from the valve body 16 with the electrical connection device 15 contacted wire conductors are led out, directly from the valve unit 5 out to an actuating voltage providing electronic control device are performed. Much more advantageous, however, is a design in which the electrical contacting of the drive device 15 with the interposition of the connection body 4 takes place, being inside the valve assembly 2 . 3 there is an electrical interlinking between the components to be electrically operated. In this way, the electrical contact of the valve assembly is limited 2 . 3 with the external electronic control device on subsequent measures that the connection body 4 affect. The valve arrangement 1 of the embodiment is designed for such a simplified electrical contacting.

The electrical conductor means 56 in this connection comprise at the connection body 4 arranged conductor means serving as terminal body conductor means 57 are designated and arranged on the terminal body attachment interface electrical terminal body contact means 57a feature. In addition, the terminal body conductor means include 57 at least one outside the connector body mounting interface 8th placed electrical interface section 57b Each of which is usable to establish an electrical connection with an electronic control device, not shown further. The electrical interface sections 57b may be, for example, plug contacts or solder pads.

On the part of the valve unit 5 have the electrical conductor means 56 via valve unit conductor means 62 on the one hand with the internal electric drive device 15 connected to the other and on the first valve unit mounting interface 24 arranged first valve unit contact means 62a feature. The latter are arranged and configured to engage with the terminal body contact means 57a be contacted electrically conductive when the valve unit 5 on the connection body 4 is attached. This is the case with manufactured valve assembly 2 . 3 a continuous electrical connection between the electrical interface sections 57b and the electric drive device 15 the valve unit 5 in front.

The valve unit conductor means 62 also included on the second valve unit mounting interface 25 arranged second valve unit contact means 62b , The same are expediently formed in the same way as the terminal body contact means 57a , With the help of this second valve unit contact means 62b is the electrical contacting of one to the second valve unit mounting interface 25 attached auxiliary unit 6 possible, if it has an electrical equipment.

The valve arrangement 1 of the embodiment includes several additional units 6 with electrical equipment. It is the additional valve unit 7 and further two additional units 6 of which one as a display unit 6c and the other as a sensor unit 6d is trained.

In all these cases is the optional unit 6 equipped with electrical conductor means as an auxiliary unit conductor means 63 be designated. This ancillary unit ladder means 63 have electrical auxiliary unit contact means 63a connected to the peripheral unit mounting interface 45 are arranged in such a way that they with the second valve unit contact means 62b are electrically contacted when the auxiliary unit 6 with the valve unit 5 to an auxiliary unit-valve unit assembly 46 assembled. The auxiliary unit contact means 63a are preferably formed in the same way as the first valve unit contact means 62a such that, even with an accessory unit connector assembly, an electrical connection between the accessory unit conductor means 63 and the terminal body conductor means 57 is present.

Will be at the connector body mounting interface 8th or at the second valve unit mounting interface 25 an un electrical auxiliary unit 6 attached, are the second valve unit contact means 62b function.

As far as in this description of an electrical equipment is mentioned, this of course includes electronic components.

One as a display unit 6c designed optional unit 6 For example, is a status display unit, for example, is capable of the current operating state of the associated valve unit 5 display. It is for this purpose with suitable electrically actuated display means 64 equipped, which may be visual display means and which are realized in particular as a light-emitting means, in particular in the form of at least one LED.

One as a sensor unit 6d trained additional unit 6 For example, it may be designed as a pressure sensor unit that is capable of housing one inside the housing 18 and in particular in the second valve chamber 37 to detect prevailing fluid pressure. A sensor unit 6d is preferably also with display means 64 equipped, visualize the currently prevailing pressure, for example in the form of a manometer. Additionally or alternatively, that of the sensor unit 6d measured values either processed or unprocessed by mediating the electrical conductor means 56 to the electrical interface sections 57b be routed to process the data in the connected electrical control device.

With regard to the additional valve unit 7 the above applies, namely that they are with valve unit-conductor means 62 ' may be equipped, those of the valve unit 5 correspond, so that at this point a separate description is omitted.

The mentioned display means 64 as well as to the sensor unit 6d belonging sensor means 65 are examples of electrical functional means 66 with which the ancillary unit 6 can be equipped. At the additional valve unit 7 are the electrical functional means 66 from the electric drive device 15 ' educated.

To the electrical conductor means 56 to realize, it is expedient at least partially resorted to traces, which are based on supporting components of the various components of the valve assembly 1 are applied. The conductor tracks extend in particular on an outer surface and / or inner surface of the connection body 4 , of the valve housing 16 the valve unit 7 and a preferably made of plastic material body 67 a respective additional unit 6 , which also prefers the auxiliary unit mounting interface 45 having. The main body 67 in particular also carries the respective associated electrical functional means 66 , The conductor tracks are preferred realized by the fact that the corresponding components of the valve assembly 1 are designed as MID components, where "MID" stands for "Molded Interconnect Device".

The various attachment interfaces 8th . 24 . 25 . 45 could for example be designed as screw connection devices. As further embodiments, plug-in devices and / or latching connection devices offer themselves. However, it is considered to be particularly advantageous, the said attachment interfaces as bayonet connection devices 68 perform. This applies to the embodiment.

In particular, each of the mentioned recesses belongs 13 to a female bayonet connection device 68 and each of the above-mentioned protrusions 27 to a male bayonet connection device 68 , To make a bayonet connection, the component to be attached to another component is installed as part of a plug-in rotation process, indicated by arrows 72 is clarified.

The bayonet connection devices 68 have with manufactured bayonet connection positively engaging behind connecting sections 73 , The various contact means 57a . 62a . 62b . 63a are expediently directly on these connecting sections 73 arranged and realized for example by a metallization.

In 3 is with solid assembly arrows 47d the described possibility indicated the additional units 6 at the second valve unit mounting interface 25 to install. Dashed mounting arrows 47c make it clear that the same ancillary units 6 alternatively also on the second valve unit attachment interface 25 ' an additional valve unit 7 can be mounted.

For the electric drive device 15 Various embodiments come into question. For example, an electromagnetic drive device operating according to the reluctance principle or else a piezoelectric drive device is possible. However, a design as an electrodynamic drive device has proven particularly advantageous 15 proved, which is also realized in the embodiment. An advantageous embodiment of this electro-dynamic drive device 15 is explained below.

The drive device 15 contains one in the housing interior 18 stationary with respect to the valve housing 16 arranged annular permanent magnet unit 74 coaxial with the longitudinal axis 35 is aligned. It contains at least one and preferably exactly one annular permanent magnet 75 that is axially between an annular iron core 76 and a likewise made of a ferromagnetic material annular return part 77 is incorporated. The iron core 76 is expediently axially on the bottom wall portion 42 at. A centrally located sleeve-shaped central section 76a extends concentrically within the permanent magnet 75 and is of the latter, leaving one to the second valve chamber 37 towards open immersion space 78 enclosed. The central section 76a is from the above-mentioned axial opening 38 permeates and thus provides a connection between the two valve chambers 36 . 37 ago.

In the second valve chamber 37 there is a coil unit 82 placing a coaxial in the immersion room 78 immersed, electrically energizable coil 83 contains and also a coil 83 carrying, consisting of an electrically non-conductive material coil carrier 84 , The coil carrier 84 dives with a columnar central section 85 axially displaceable in the axial opening 38 and is with the valve member 22 combined into one unit. Preferably, the valve member 22 at one of the valve seat 34 facing end face of the central portion 35 arranged, wherein it consists in particular of a sealing element attached thereto. But there is also the possibility of the coil carrier 84 so that he himself directly the valve member 22 forms.

The sink 83 is about moving electrical conductors 86 leading to the electrical conductors 56 belong, electrically contacted, so that it can be supplied with current as needed.

In the housing interior 18 arranged spring means 87 , which are realized for example in the form of a leaf spring, exert a constant elastic force on the coil unit 82 and push it towards a home position, with the closed position of the valve member 22 matches.

Will the coil 83 energized, there is an interaction of the current flow with the magnetic field of the permanent magnet unit 74 , As a result, there is a dependent on the magnitude of the current force, which results from the so-called Lorentz force and which is capable of the spring force of the spring means 87 to overcome. In this way, the coil unit 82 to a direction indicated by a double arrow drive movement 78 in the longitudinal direction of the valve unit 5 be initiated simultaneously with the labor movement 23 with the coil unit 82 motion-coupled valve member 22 entails. In this way, the valve member 22 as needed relative to the valve seat opposite it 34 be positioned.

For the formation of driving forces is in this type of drive device 15 , which is based on the utilization of the Lorentz force, essential that in the magnetic circuit of the permanent magnet unit 74 is determined, electrical conductors of the coil 83 be arranged such that a current flow in the coil 83 directed perpendicular to the magnetic flux. As a result, the Lorentz force resulting from the interaction of magnetic flux and current flow is then oriented in the desired direction of movement and can drive the drive 78 cause. The electrodynamic drive principle enables a highly dynamic drive movement 78 ,

Preferably, the electrical wiring of the valve assembly 1 so run that even if a valve assembly 3 in addition to a valve unit 5 also an additional valve unit 7 has, these two valve units 5 . 7 by means of only two electrical conductor tracks of the electrical conductor means 56 are operable. This is in the valve unit-conductor means 62 a respective valve unit 5 . 7 a diode is turned on, which ensures that the associated drive means 15 can only be activated at a certain current direction. In this way it is achieved that in a current flow direction, the one drive device 15 and in the opposite current flow direction, the other drive means 15 ' is pressed. This effect can be despite the same design between the valve unit 5 and the auxiliary valve unit 7 Achieve by the additional valve unit 7 in a rotational position on the valve unit 5 is mounted, which has an angular offset of 180 degrees. By coding can be achieved, which is an assembly of the valve units 5 . 7 only possible with the desired rotation angle offset.

The not further illustrated in the drawing diode also ensures that the valve member 22 the currently inactive valve unit 5 or 7 not unnecessary on the valve seat 34 is pressed.

The electrodynamic drive device 15 can be operated with a low drive voltage and is characterized by a low power consumption. Nevertheless, it allows a highly dynamic movement behavior of the valve member 22 ,

The columnar central section 85 is in its outer contour so on the inner contour of the axial opening 38 coordinated, which remains in between at least one free space, the fluid passage between the two valve chambers 36 . 37 allows. Preferably, the columnar central portion 85 , in particular by means of one or more guide ribs formed on its outer circumference, in the axial opening 38 guided linearly displaceable, so that the coil unit 82 in their drive movement 88 undergoes a precise linear guide.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 3338418 C2 [0002]
• DE 3634349 C1 [0003]
• DE 102009033585 A1 [0004]

Claims (16)

Valve arrangement, with at least one connection body ( 4 ), on the outside of which at least one connection body attachment interface ( 8th ) is formed on the at least one the connecting body ( 4 ) penetrating connection body channel ( 12 ), and with at least one valve unit ( 5 ), which is a valve housing ( 16 ), on the outside of which to the terminal body mounting interface ( 8th ) matching first valve unit mounting interface ( 24 ) is formed on the at least one valve channel ( 28 ) of the valve unit ( 5 ), which communicates with one in the valve housing ( 16 ) formed housing interior ( 18 ), in which a by means of an electric drive device ( 15 ) of the valve unit ( 5 ) drivable movable valve member ( 22 ) and also with the housing wall ( 17 ) of the valve housing ( 6 ) penetrating wall opening ( 43 ) communicates with the valve unit ( 5 ) and the connection body ( 4 ) by assembling the first valve unit attachment interface ( 24 ) and the terminal body attachment interface ( 8th ) to a valve unit connector body assembly ( 26 ) are unified, characterized in that on the outside of the valve housing ( 16 ) of the valve unit ( 5 ) another, second valve unit mounting interface ( 25 ) is formed to which the with the housing interior ( 18 ) communicating wall opening ( 43 ) and which coincide with the terminal body attachment interface ( 8th ) and that the valve arrangement ( 1 ) at least one additional unit ( 6 ), which has one to the second valve unit mounting interface ( 25 ) suitable auxiliary unit mounting interface ( 45 ) and by joining the auxiliary unit mounting interface ( 45 ) and the second valve unit attachment interface ( 25 ) with the valve unit ( 5 ) to an auxiliary unit-valve unit assembly ( 46 ) is unifying. Valve arrangement according to claim 1, characterized in that the valve unit ( 5 ) a longitudinal axis ( 35 ), wherein the first valve unit attachment interface ( 24 ) and the second valve unit attachment interface ( 25 ) in the axial direction of the longitudinal axis ( 35 ) opposite end faces of the valve housing ( 16 ) are arranged in mutually coaxial alignment. Valve arrangement according to claim 1 or 2, characterized in that the auxiliary unit attachment interface ( 45 ) of the at least one additional unit ( 6 ) except for the second valve unit attachment interface ( 25 ) also to the terminal body attachment interface ( 8th ), so that the optional unit ( 6 ) by assembling the auxiliary unit mounting interface ( 45 ) and the terminal body attachment interface ( 8th ) with the connection body ( 4 ) is associable with an auxiliary unit connector body assembly. Valve arrangement according to one of claims 1 to 3, characterized in that the connection body electrical connection body conductor means ( 57 ) attached to the connector body attachment interface ( 8th ) first terminal body contact means ( 57a ) and that the valve unit ( 5 ) electric valve unit conductor means ( 62 ), which is connected to the electric drive device ( 15 ) and at the two valve unit mounting interfaces ( 24 . 25 ) arranged first and second valve unit contact means ( 62a . 62b ) in a manufactured valve unit connector body assembly ( 26 ) the electrical terminal body contact means ( 57a ) with those at the first valve unit mounting interface ( 24 ) arranged first valve unit contact means ( 24 ) and wherein the electrical connection body contact means ( 57a ) and the first valve unit contact means ( 62a ) are expediently designed and arranged such that the electrical contacting automatically occurs immediately when uniting the two fastening interfaces ( 8th . 24 ) takes place. Valve arrangement according to claim 4, characterized in that at least one additional unit ( 6 ) electrical auxiliary unit conductor means ( 63 ) attached to the accessory unit mounting interface (FIG. 45 ) arranged auxiliary electrical contact means ( 63a ) such that, in a manufactured auxiliary unit valve unit assembly ( 46 ) the auxiliary electrical unit contact means ( 63a ) with those at the second valve unit mounting interface ( 25 ) arranged second valve unit contact means ( 62b ) and that in a manufactured accessory unit body assembly the auxiliary unit contact means ( 63a ) with the terminal body contact means ( 57a ) are contacted, wherein the contacting expediently each automatically immediately upon assembly of the attachment interfaces ( 45 . 25 ; 45 . 8th ) takes place. Valve arrangement according to claim 5, characterized in that at least one via electrical auxiliary unit conductor means ( 63 ) ( 6 ) to the auxiliary unit conductor means ( 63 ) connected electrical functional means ( 66 ), which are expediently used as display means ( 64 ) and / or as sensor means ( 65 ) and / or as an electric drive device ( 15 ' ) are formed. Valve arrangement according to one of claims 4 to 6, characterized in that the electrical conductor means at least partially as Conductor tracks are formed, wherein the conductor track each supporting component is expediently designed as MID components (MID = Molded Interconnect Device). Valve arrangement according to one of claims 1 to 7, characterized in that its components to a valve assembly ( 2 . 3 ) are composable or assembled, the a connecting body ( 4 ), one on the connection body ( 4 ) attached valve unit ( 5 ) and one on the valve unit ( 5 ) attached auxiliary unit ( 6 ). Valve arrangement according to one of claims 1 to 8, characterized in that at least one additional unit ( 6 ) as the wall opening ( 43 ) closing plugs ( 6b ) or as a silencing unit ( 6a ) for sound damping of in operation of the valve assembly ( 1 ) through the wall opening ( 43 ) is formed through to the environment outflowing compressed air. Valve arrangement according to one of claims 1 to 9, characterized in that at least one additional unit ( 6 ) as a display unit ( 6c ), expediently as at least one operating state of the valve unit ( 5 ) is displayed and / or that at least one additional unit ( 6 ) as a sensor unit ( 6d ), expediently as a pressure sensor unit is formed. Valve arrangement according to one of claims 1 to 10, characterized in that at least one additional unit ( 6 ) as an auxiliary valve unit ( 7 ), which expediently identical to the valve unit ( 5 ) is trained. Valve arrangement according to claim 11, characterized in that its components to a valve assembly ( 3 ) are composable or assembled, the a connecting body ( 4 ), one on the connection body ( 4 ) attached valve unit ( 5 ) and one on the valve unit ( 5 ) attach additional valve unit ( 7 ), wherein at the additional valve unit ( 7 ) a further optional unit ( 6 ) and wherein the valve unit ( 5 ) and the additional valve unit ( 7 ) expediently each have a 2/2-way functionality and the valve assembly ( 3 ) has a total of 3/2-way functionality or a 3/3-way functionality. Valve arrangement according to one of claims 1 to 12, characterized in that the attachment interfaces ( 8th . 24 . 25 . 45 ) as bayonet connection devices ( 68 ), wherein expediently the connection body attachment interface ( 8th ) and the second valve unit attachment interface ( 25 ) each as a recess ( 13 ) female bayonet connection device ( 68 ) and the first valve unit attachment interface ( 24 ) and the auxiliary unit mounting interface ( 45 ) each as one for immersion in the recess ( 13 ) provided advantage ( 27 ) male bayonet connection device ( 68 ) is trained. Valve arrangement according to claim 13 in conjunction with one of claims 4 to 7, characterized in that the electrical contact means ( 57a . 62a . 62b . 63a ) of the electrical conductor means ( 56 ) of the valve assembly ( 1 ) to the interlocking components ( 73 ) of the bayonet connection devices ( 68 ) are formed so that they directly in the manufacture of the respective bayonet connection in electrically conductive contact with each other. Valve arrangement according to one of claims 1 to 14, characterized in that the valve unit ( 5 ) and the optional additional valve unit ( 7 ) is designed as a proportional valve and / or as a 2/2-way valve. Valve arrangement according to one of claims 1 to 15, characterized in that the electric drive device ( 15 . 15 ' ) is of electrodynamic type and with respect to the valve housing ( 16 . 16 ' ) stationary and at least one permanent magnet ( 75 . 75 ' ) containing annular permanent magnet unit ( 74 . 74 ' ) and a coil unit ( 82 . 82 ' ) with a coil carrier ( 84 . 84 ' ) and an attached, also annular coil ( 83 . 83 ' ), the coil ( 83 . 83 ' ) coaxially into the annular permanent magnet unit ( 74 . 74 ' ) and is electrically energized to the coil unit ( 82 . 82 ' ) relative to the permanent magnet unit ( 74 . 74 ' ) to a valve member ( 22 . 22 ' ) moving drive movement ( 88 . 88 ' ), wherein expediently the valve member ( 22 . 22 ' ) in a valve chamber ( 36 . 36 ' ) of the housing interior ( 18 . 18 ' ) a valve channel ( 28a . 28a ' ) associated valve seat ( 34 . 34 ' ) of the valve unit ( 5 . 7 ) and by the drive movement ( 88 . 88 ' ) of the coil unit ( 82 ) relative to the valve seat ( 34 ) is positionable to the associated valve channel ( 28a . 28a ' ) optionally shut off or release, and wherein the valve member ( 22 . 22 ' ) expediently with the coil carrier ( 84 . 84 ' ) is combined into a single entity.

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