EP0686239B1 - Valve block - Google Patents

Valve block Download PDF

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Publication number
EP0686239B1
EP0686239B1 EP19940906131 EP94906131A EP0686239B1 EP 0686239 B1 EP0686239 B1 EP 0686239B1 EP 19940906131 EP19940906131 EP 19940906131 EP 94906131 A EP94906131 A EP 94906131A EP 0686239 B1 EP0686239 B1 EP 0686239B1
Authority
EP
European Patent Office
Prior art keywords
valve
housing
valve block
baseplate
base plate
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.)
Expired - Lifetime
Application number
EP19940906131
Other languages
German (de)
French (fr)
Other versions
EP0686239A1 (en
Inventor
Edgar Witowski
Guenter Mayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0686239A1 publication Critical patent/EP0686239A1/en
Application granted granted Critical
Publication of EP0686239B1 publication Critical patent/EP0686239B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F15B13/0832—Modular valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • 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
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0807—Manifolds
    • F15B13/0814—Monoblock manifolds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0828—Modular units characterised by sealing means of the modular units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • F15B13/0853—Electric circuit boards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • F15B13/0857—Electrical connecting means, e.g. plugs, sockets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0875—Channels for electrical components, e.g. for cables or sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/006—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for regenerative heat-exchange apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86582—Pilot-actuated
    • Y10T137/86614—Electric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87193—Pilot-actuated
    • Y10T137/87209—Electric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87885—Sectional block structure

Definitions

  • the invention relates to a valve block according to the preamble of claim 1.
  • a valve block of this type known for example from US Pat. No. 4,726,393
  • the pilot valves between the directional control valves and the installation shaft are screwed into the base plate from the top and onto them in Height of the directional valves, the electromagnets are placed, the connector arranged on the housing of the electromagnet being coupled to a socket inserted in the base plate above the installation shaft.
  • the assembly of the directional control valves, the pilot control valves and their electromagnets on the base plate is lengthy and careful to carry out in the known valve block.
  • the valve block according to the invention with the characterizing features of claim 1 has the advantage that the individual directional control valves and their pilot valves together with the electromagnets can each be mounted as a unit on the base plate, the Integrated plug connection also shortens and simplifies assembly.
  • the electrical connection can thus be sealed very easily, so that a very high degree of electrical protection is ensured. It is even possible for the customer to assemble it without having to restrict the guaranteed degree of protection. Since the electromagnets of the pilot valves are completely enclosed by the housing, no live parts lead to the outside, so that a protective contact plug is not required.
  • FIG. 1 shows a valve block in cross section
  • FIG. 2 shows a second exemplary embodiment of a valve block partially in cross section.
  • the valve block has a base plate 1 and a plurality of directional valves 2 mounted in parallel next to one another and controlled by electromagnetically operated pilot valves 3, 4 attached to it.
  • the base plate 1 several parallel channels 11 to 15 for supply and exhaust air, as well as two each, run in the longitudinal direction channels 16, 17 extending transversely thereto for working air to which consumers are connected.
  • the channels 11 to 17 blind holes 21 to 27 are connected, the openings for supplying the directional control valves 2 according to a known hole pattern, for example according to DIN ISO 5599/1 in the overhead connection side 18 of the base plate 1.
  • a shaft 19 extends in the base plate 1 parallel to the channels 11 to 15 with an essentially rectangular cross section for accommodating an electrical installation device, for example a printed circuit board 20.
  • the exemplary directional control valve 2 for controlling a consumer is a 5/2-way valve with a cuboid housing 31, in whose underside 29 supply air, exhaust air and control bores 32 to 36 open to match the hole pattern of the base plate 1.
  • a control slide 38 which is actuated by two actuating pistons 39, 40, is arranged in a through bore 37 in the housing 31.
  • the two pilot valves 3, 4, each actuated by an electromagnet 45, 46 and designed as 3/2-way valves, are used to actuate the actuating pistons 39, 40 and the control slide 38, and are arranged in a cuboid housing 41 that has a flat mounting surface 42 is attached to an end face 43 of the directional control valve 2 above the shaft 19 of the base plate 1.
  • the housing 41 is preferably molded from a plastic and receives the electromagnets 45, 46 with their armatures 47, 48 in a form-fitting manner.
  • the valve seats 51, 52 of the pilot valves 3, 4, with which the sealing surfaces 53, 54 cooperate on the armatures 47, 48, are arranged in a cover 61 which is attached to the top of the housing 41 of the pilot valves 3, 4.
  • a supply air duct which consists of bores 62 to 65 in the cover 61, a bore 66 in the housing 41 and bores 67, 68 in the housing 31 of the directional control valve 2 and a dowel sleeve 69 connecting the two housings 31 and 41 composed, and which starts from a supply air chamber in the housing 31.
  • the electromagnets 45, 46 their armatures 47, 48 and the valve seats 51, 52 of the two pilot valves 3, 4 are preferably arranged in series one after the other in the extension of the axis of the valve spool 38 of the directional control valve 2 in the housing 41, the two housings 31 and 41 preferably have the same thickness and, when assembled, form a slim unit.
  • a channel consisting of a bore 73 in the cover 61 and a bore 74 in the housing 41 leads to the working space 75 of the one control piston 39 and one from bores 76 to 79 in the cover 61, in the Housings 41 and 31 and in an end cover 81 existing channel to the working space 82 of the other actuating piston 40.
  • the working spaces 75 and 82 for the two actuating pistons 39, 40 are preferably arranged in the housing 41 of the pilot valves 3, 4 and in the end cover 81.
  • a channel consisting of bores 84 to 87 leads to the blind bore 21 in the base plate 1.
  • This approach 101 is congruent with the housing 31 of the directional control valve 2 and, with the hole pattern of the base plate 1 and the directional control valve 2, contains through holes 102 to 107 which overlap and the connection bore 87 of the ventilation channel of the pilot valves 3, 4.
  • molded seals 113, 114 are inserted in grooves 111 , 112 of the top and bottom 108, 109 of the plate-shaped extension 101.
  • control lamps or light-emitting diodes 115 are also arranged on the printed circuit board 20 and are visible through windows 116 in the base plate 1.
  • FIG. 2 corresponds essentially to that of Figure 1, so that the same parts have the same item numbers. It differs essentially in that the control spool 38 of the directional control valve 2 is actuated by a single actuating piston 39 in one direction and in the other direction by a compression spring 121 which is supported in the end cover 81. According to the arrangement of only one control piston 39, only a single pilot valve 4 is arranged in the housing 41. The space 122 of the second pilot valve 3 is unoccupied and the associated valve seat 51 in the cover 61 is sealed with a plate 123. In the context of the invention it is also possible to shorten the housing 41 and its cover 61 by the free space 112, so that it ends parallel to the electromagnet 46, the plug base 92 being fully retained.
  • valve block described in the exemplary embodiments according to FIGS. 1 and 2 is extremely simple and quick to assemble.
  • the housing 41 with the pilot valves 3, 4 is attached to the mounting face 43 of the directional control valve 2 with fastening means, not shown, such as screws.
  • fastening means not shown, such as screws.
  • prepared valve units are successively aligned with the corresponding sections of the connection side 18 of the base plate 1, the plug base 92 with the opening 97 and the through holes 102 to 107 with the openings of the blind holes 21 to 27 of the hole pattern in the base plate 1 swear.
  • Each unit is then pressed onto the connection side 18 of the base plate 1, the plug base 92 being inserted into the opening 97 to the shaft 19 and the contact tabs 93, 94 being received by the contact terminals 95, 96 of the printed circuit board 20.
  • Each unit is then also fastened to the base plate 1 using suitable fastening means such as screws.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Magnetically Actuated Valves (AREA)
  • Valve Housings (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The valve block has a base plate (1) with longitudinal channels (11 to 15) for the air inlet and discharge, working air channels (16, 17) transversely thereto, connecting channels (21 to 27) opening in a given hole pattern in the connection side (18) and a shaft (10) for an electrical installation (20). On the connection side (18) of the base plate there is at least one unit consisting of a passage valve (2) and two pre-control valves (3, 4) controlling it. The pre-control valves (3, 4) are arranged in a casing (41) secured by one fitting surface (42) to one face (43) of the passage valve (2). A socket (92) on the underside (29) of the casing (41) projects via an aperture (97) in the base plate into the shaft (19) and has projecting contact blades (93, 94) connected to terminals (95, 96) on the printed circuit board (20). To reduce assembly tolerances to the minimum, a plate-like attachment (101) projects laterally between the passage valve (2) and the base plate (1) at the lower end of the pre-control valve (3, 4) casing (41) and has through holes (102 to 107) corresponding to the hole pattern in the base plate (1).

Description

Stand der TechnikState of the art

Die Erfindung bezieht sich auf einen Ventilblock nach dem Oberbegriff des Anspruchs 1. Bei einem beispielsweise aus der US-PS 4 726 393 bekannten Ventilblock dieser Art sind die Vorsteuerventile zwischen den Wegeventilen und dem Installationsschacht von der Oberseite her in der Grundplatte eingeschraubt und auf ihnen in Höhe der Wegeventile die Elektromagnete aufgesetzt, wobei der am Gehäuse der Elektromagnete angeordnete Verbindungsstecker mit einer in der Grundplatte über dem Installationsschacht eingesetzten Steckdose gekuppelt ist. Die Montage der Wegeventile, der Vorsteuerventile und deren Elektromagnete auf der Grundplatte ist bei dem bekannten Ventilblock langwierig und sorgfältig durchzuführen.The invention relates to a valve block according to the preamble of claim 1. In a valve block of this type, known for example from US Pat. No. 4,726,393, the pilot valves between the directional control valves and the installation shaft are screwed into the base plate from the top and onto them in Height of the directional valves, the electromagnets are placed, the connector arranged on the housing of the electromagnet being coupled to a socket inserted in the base plate above the installation shaft. The assembly of the directional control valves, the pilot control valves and their electromagnets on the base plate is lengthy and careful to carry out in the known valve block.

Vorteile der ErfindungAdvantages of the invention

Der erfindungsgemäße Ventilblock mit den kennzeichnenden Merkmalen des Anspruchs 1 hat den Vorteil, daß die einzelnen Wegeventile und ihre Vorsteuerventile mitsamt den Elektromagneten als jeweils eine Einheit auf der Grundplatte montiert werden können, wobei die integrierte Steckerverbindung die Montage zusätzlich verkürzt und vereinfacht. Hinzu kommt, daß bezüglich der vom Gehäuse der Elektromagnet-Vorsteuerventile und dessen einstückigem Ansatz gebildeten Unterseite, an der der Stecker vorsteht, nur sehr kleine Toleranzen zwischen den pneumatischen Durchlässen und den elektrischen Anschlüssen zu berücksichtigen sind, da die Anschlüsse in einer einzigen Gieß-Form hergestellt werden. Der elektrische Anschluß kann somit sehr leicht gedichtet werden, so daß eine sehr hohe elektrische Schutzart gesichert ist. Damit ist sogar eine Montage durch den Kunden möglich, ohne daß die garantierte Schutzart eingeschränkt werden muß. Da die Elektromagnete der Vorsteuerventile vollständig vom Gehäuse umfaßt werden, führen keine spannungsführenden Teile nach außen, so daß ein Schutzkontaktstecker nicht erforderlich ist.The valve block according to the invention with the characterizing features of claim 1 has the advantage that the individual directional control valves and their pilot valves together with the electromagnets can each be mounted as a unit on the base plate, the Integrated plug connection also shortens and simplifies assembly. In addition, there are only very small tolerances between the pneumatic passages and the electrical connections to be taken into account with regard to the underside formed by the housing of the solenoid pilot valves and its one-piece extension, on which the connector protrudes, since the connections are in a single mold getting produced. The electrical connection can thus be sealed very easily, so that a very high degree of electrical protection is ensured. It is even possible for the customer to assemble it without having to restrict the guaranteed degree of protection. Since the electromagnets of the pilot valves are completely enclosed by the housing, no live parts lead to the outside, so that a protective contact plug is not required.

Durch die in den Unteransprüchen angegebenen Maßnahmen sind vorteilhafte Ausgestaltungen des im Anspruch 1 angegebenen Ventilblocks möglich.The measures specified in the subclaims allow advantageous configurations of the valve block specified in claim 1.

Zeichnungdrawing

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher beschrieben. Es zeigen Figur 1 einen Ventilblock im Querschnitt und Figur 2 ein zweites Ausführungsbeispiels eines Ventilblocks teilweise im Querschnitt.Embodiments of the invention are shown in the drawing and are described in more detail below. 1 shows a valve block in cross section and FIG. 2 shows a second exemplary embodiment of a valve block partially in cross section.

Beschreibung der AusführungsbeispieleDescription of the embodiments

Der Ventilblock hat eine Grundplatte 1 und mehrere parallel nebeneinander auf dieser montierte Wegeventile 2, die von daran angebauten, elektromagnetisch betätigten Vorsteuerventilen 3, 4 angesteuert werden. In der Grundplatte 1 verlaufen in Längsrichtung mehrere parallele Kanäle 11 bis 15 für Zu- und Abluft, sowie je zwei sich dazu quer erstreckende Kanäle 16, 17 für Arbeitsluft, an die Verbraucher angeschlossen werden. Mit den Kanälen 11 bis 17 sind Sackbohrungen 21 bis 27 verbunden, deren Öffnungen zum Versorgen der Wegeventile 2 nach einem bekannten Lochbild, beispielsweise nach DIN ISO 5599/1 in der obenliegenden Anschlußseite 18 der Grundplatte 1 münden. Ferner erstreckt sich in der Grundplatte 1 parallel zu den Kanälen 11 bis 15 ein Schacht 19 mit einem im wesentlichen rechteckigen Querschnitt zum Unterbringen einer elektrischen Installationseinrichtung, beispielsweise einer Leiterplatte 20.The valve block has a base plate 1 and a plurality of directional valves 2 mounted in parallel next to one another and controlled by electromagnetically operated pilot valves 3, 4 attached to it. In the base plate 1, several parallel channels 11 to 15 for supply and exhaust air, as well as two each, run in the longitudinal direction channels 16, 17 extending transversely thereto for working air to which consumers are connected. With the channels 11 to 17 blind holes 21 to 27 are connected, the openings for supplying the directional control valves 2 according to a known hole pattern, for example according to DIN ISO 5599/1 in the overhead connection side 18 of the base plate 1. Furthermore, a shaft 19 extends in the base plate 1 parallel to the channels 11 to 15 with an essentially rectangular cross section for accommodating an electrical installation device, for example a printed circuit board 20.

Das beispielhaft dargestellte Wegeventil 2 zum Steuern eines Verbrauchers ist ein 5/2-Wegeventil mit einem quaderförmigen Gehäuse 31, in dessen Unterseite 29 dem Lochbild der Grundplatte 1 angepaßte Zuluft-, Abluft- und Steuerbohrungen 32 bis 36 münden. In einer Durchgangsbohrung 37 im Gehäuse 31 ist ein Steuerschieber 38 angeordnet, der von zwei Stellkolben 39, 40 betätigt wird.The exemplary directional control valve 2 for controlling a consumer is a 5/2-way valve with a cuboid housing 31, in whose underside 29 supply air, exhaust air and control bores 32 to 36 open to match the hole pattern of the base plate 1. A control slide 38, which is actuated by two actuating pistons 39, 40, is arranged in a through bore 37 in the housing 31.

Zum Ansteuern der Stellkolben 39, 40 bzw. des Steuerschiebers 38 dienen die beiden von je einem Elektromagnet 45, 46 betätigten, als 3/2-Wegeventile ausgebildeten Vorsteuerventile 3, 4, die in einem quaderförmigen Gehäuse 41 angeordnet sind, das mit einer ebenen Anbaufläche 42 an einer Stirnfläche 43 des Wegeventils 2 über dem Schacht 19 der Grundplatte 1 befestigt ist. Das Gehäuse 41 ist vorzugsweise aus einem Kunststoff formgegossen und nimmt die Elektromagnete 45, 46 mit ihren Ankern 47, 48 formschlüssig auf. Die Ventilsitze 51, 52 der Vorsteuerventile 3, 4, mit denen die Dichtflächen 53, 54 an den Ankern 47, 48 zusammenwirken, sind in einem Deckel 61 angeordnet, der auf der Oberseite des Gehäuses 41 der Vorsteuerventile 3, 4 befestigt ist. Zu den Ventilsitzen 51, 52 führt mittig ein Zuluftkanal, der sich aus Bohrungen 62 bis 65 im Deckel 61, einer Bohrung 66 im Gehäuse 41 und Bohrungen 67, 68 im Gehäuse 31 des Wegeventils 2 sowie einer die beiden Gehäuse 31 und 41 verbindenden Paßhülse 69 zusammensetzt, und der von einer Zuluftkammer im Gehäuse 31 ausgeht.The two pilot valves 3, 4, each actuated by an electromagnet 45, 46 and designed as 3/2-way valves, are used to actuate the actuating pistons 39, 40 and the control slide 38, and are arranged in a cuboid housing 41 that has a flat mounting surface 42 is attached to an end face 43 of the directional control valve 2 above the shaft 19 of the base plate 1. The housing 41 is preferably molded from a plastic and receives the electromagnets 45, 46 with their armatures 47, 48 in a form-fitting manner. The valve seats 51, 52 of the pilot valves 3, 4, with which the sealing surfaces 53, 54 cooperate on the armatures 47, 48, are arranged in a cover 61 which is attached to the top of the housing 41 of the pilot valves 3, 4. In the center of the valve seats 51, 52 is a supply air duct, which consists of bores 62 to 65 in the cover 61, a bore 66 in the housing 41 and bores 67, 68 in the housing 31 of the directional control valve 2 and a dowel sleeve 69 connecting the two housings 31 and 41 composed, and which starts from a supply air chamber in the housing 31.

Die Elektromagnete 45, 46 deren Anker 47, 48 und die Ventilsitze 51, 52 der beiden Vorsteuerventile 3, 4 sind vorzugsweise in Reihe hintereinander in Verlängerung der Achse des Ventilschiebers 38 des Wegeventils 2 im Gehäuse 41 angeordnet, wobei die beiden Gehäuse 31 und 41 vorzugsweise eine gleiche Dicke haben und zusammengebaut eine schlanke Einheit bilden.The electromagnets 45, 46 their armatures 47, 48 and the valve seats 51, 52 of the two pilot valves 3, 4 are preferably arranged in series one after the other in the extension of the axis of the valve spool 38 of the directional control valve 2 in the housing 41, the two housings 31 and 41 preferably have the same thickness and, when assembled, form a slim unit.

Von den Steuerkammern 71, 72 der Vorsteuerventile 3, 4 führt ein aus einer Bohrung 73 im Deckel 61 und einer Bohrung 74 im Gehäuse 41 bestehender Kanal zu dem Arbeitsraum 75 des einen Stellkolbens 39 und ein aus Bohrungen 76 bis 79 im Deckel 61, in den Gehäusen 41 und 31 sowie in einem Stirnseitendeckel 81 bestehender Kanal zum Arbeitsraum 82 des anderen Stellkolbens 40. Vorzugsweise sind die Arbeitsräume 75 und 82 für die beiden Stellkolben 39, 40 im Gehäuse 41 der Vorsteuerventile 3, 4 und im Stirnseitendeckel 81 angeordnet. Zum Entlüften der Vorsteuerventile 3, 4 führt ein aus Bohrungen 84 bis 87 bestehender Kanal zu der Sackbohrung 21 in der Grundplatte 1.From the control chambers 71, 72 of the pilot valves 3, 4, a channel consisting of a bore 73 in the cover 61 and a bore 74 in the housing 41 leads to the working space 75 of the one control piston 39 and one from bores 76 to 79 in the cover 61, in the Housings 41 and 31 and in an end cover 81 existing channel to the working space 82 of the other actuating piston 40. The working spaces 75 and 82 for the two actuating pistons 39, 40 are preferably arranged in the housing 41 of the pilot valves 3, 4 and in the end cover 81. To vent the pilot valves 3, 4, a channel consisting of bores 84 to 87 leads to the blind bore 21 in the base plate 1.

Zum elektrischen Verbinden der Elektromagnete 45, 46 der Steuerventile 3, 4 mit der Leiterplatte 20 der elektrischen Installationseinrichtung steht an der Unterseite 91 des Gehäuses 41 der Vorsteuerventile 3, 4 ein Steckersockel 92 vor, in dem drei Kontaktfahnen 93, 94 angeordnet sind, die über nicht dargestellte Verbindungsleitungen im Gehäuse 41 mit den Elektromagneten 45, 46 elektrisch verbunden sind. Die in den Schacht 19 der Grundplatte 1 vorstehenden Kontaktfahnen 93, 94 greifen zum Herstellen einer elektrischen Verbindung in passend in der Leiterplatte 20 angeordnete Kontaktklemmen 95, 96. Zum Einführen und Aufnehmen des Steckersockels 92 ist in der Grundplatte 1 im Bereich des Schachtes 19 ein mit der Achse des Lochbildes der Sackbohrungen 21 bis 27 ausgerichteter Durchbruch 97 angeordnet. Ein Dichtring 98 in einer Umfangsnut 99 des Sockels 92 schützt vor Eindringen von Flüssigkeit in den Schacht 19.For the electrical connection of the electromagnets 45, 46 of the control valves 3, 4 to the circuit board 20 of the electrical installation device, on the underside 91 of the housing 41 of the pilot valves 3, 4 there is a plug base 92 in which three contact lugs 93, 94 are arranged, which are arranged above Connecting lines, not shown, in the housing 41 are electrically connected to the electromagnets 45, 46. The contact tabs 93, 94 protruding into the slot 19 of the base plate 1 engage in contact terminals 95, 96 arranged in a suitable manner in the printed circuit board 20 for inserting and receiving the plug base 92 in the base plate 1 in the area of the slot 19 arranged through the axis of the hole pattern of the blind holes 21 to 27 aligned opening 97. A sealing ring 98 in a circumferential groove 99 of the base 92 protects against the ingress of liquid into the shaft 19.

Um eine genaue Deckung der Sackbohrungen 21 bis 27 des Lochbildes in der Grundplatte 1 und den Bohrungen 32 bis 36 im Gehäuse 31 des Wegeventils 2 sowie des Durchbruchs 97 in der Grundplatte 1 mit dem Sockel 92 des Gehäuses 41 der Vorsteuerventile 3, 4 sicherzustellen, hat das Gehäuse 41 an seinem der Grundplatte 1 zugewandten Ende einen von seiner Anbaufläche 42 seitlich unter das Gehäuse 41 des Wegeventils 2 abstehenden, plattenförmigen Ansatz 101 mit zwei parallelen Seiten, von denen die obere Seite 108 in der gleichen Ebene liegt wie die Unterseite 29 des Gehäuses 31 des Wegeventils 2. Dieser Ansatz 101 ist deckungsgleich mit dem Gehäuse 31 des Wegeventils 2 und enthält mit dem Lochbild der Grundplatte 1 und des Wegeventils 2 sich deckende Durchgangsbohrungen 102 bis 107 sowie die Anschlußbohrung 87 des Entlüftungskanals der Vorsteuerventile 3, 4. In Nuten 111, 112 der Ober- und Unterseite 108, 109 des plattenförmigen Ansatzes 101 sind Formdichtungen 113, 114 eingelegt.In order to ensure exact coverage of the blind bores 21 to 27 of the hole pattern in the base plate 1 and the bores 32 to 36 in the housing 31 of the directional control valve 2 and of the opening 97 in the base plate 1 with the base 92 of the housing 41 of the pilot valves 3, 4 the housing 41 at its end facing the base plate 1 has a plate-shaped extension 101 projecting laterally from its mounting surface 42 below the housing 41 of the directional control valve 2, with two parallel sides, of which the upper side 108 lies in the same plane as the underside 29 of the housing 31 of the directional control valve 2. This approach 101 is congruent with the housing 31 of the directional control valve 2 and, with the hole pattern of the base plate 1 and the directional control valve 2, contains through holes 102 to 107 which overlap and the connection bore 87 of the ventilation channel of the pilot valves 3, 4. In grooves 111 , 112 of the top and bottom 108, 109 of the plate-shaped extension 101, molded seals 113, 114 are inserted.

Um den Betrieb der Elektromagnete 45, 46 zu kontrollieren, sind auf der Leiterplatte 20 außerdem Kontrolllampen oder -leuchtdioden 115 angeordnet, die durch Fenster 116 in der Grundplatte 1 sichtbar sind.In order to control the operation of the electromagnets 45, 46, control lamps or light-emitting diodes 115 are also arranged on the printed circuit board 20 and are visible through windows 116 in the base plate 1.

Das in Figur 2 dargestellte alternative Ausführungsbeispiel entspricht im wesentlichen dem nach Figur 1, so daß gleiche Teile gleiche Positionsziffern haben. Es unterscheidet sich im wesentlichen dadurch, daß der Steuerschieber 38 des Wegeventils 2 nur von einem einzigen Stellkolben 39 in der einen Richtung und in der anderen Richtung von einer Druckfeder 121 betätigt wird, die sich im Stirnseitendeckel 81 abstützt. Entsprechend der Anordnung nur des einen Stellkolbens 39 ist auch nur ein einziges Vorsteuerventil 4 im Gehäuse 41 angeordnet. Der Raum 122 des zweiten Vorsteuerventils 3 ist unbesetzt und der zugehörige Ventilsitz 51 im Deckel 61 mit einer Platte 123 abgedichtet. Im Rahmen der Erfindung ist es auch möglich, das Gehäuse 41 und dessen Deckel 61 um den Freiraum 112 zu verkürzen, so daß es parallel zum Elektromagneten 46 endet, wobei der Steckersockel 92 voll erhalten bleibt.The alternative embodiment shown in Figure 2 corresponds essentially to that of Figure 1, so that the same parts have the same item numbers. It differs essentially in that the control spool 38 of the directional control valve 2 is actuated by a single actuating piston 39 in one direction and in the other direction by a compression spring 121 which is supported in the end cover 81. According to the arrangement of only one control piston 39, only a single pilot valve 4 is arranged in the housing 41. The space 122 of the second pilot valve 3 is unoccupied and the associated valve seat 51 in the cover 61 is sealed with a plate 123. In the context of the invention it is also possible to shorten the housing 41 and its cover 61 by the free space 112, so that it ends parallel to the electromagnet 46, the plug base 92 being fully retained.

Der in den Ausführungsbeispielen nach den Figuren 1 und 2 beschriebene Ventilblock ist äußerst einfach und schnell zu montieren. Zunächst wird das Gehäuse 41 mit den Vorsteuerventilen 3, 4 an der Anbaustirnseite 43 des Wegeventils 2 mit nicht dargestellten Befestigungsmitteln wie Schrauben befestigt. Sodann werden so vorbereitete Ventil-Einheiten nacheinander mit den entsprechenden Abschnitten der Anschlußseite 18 der Grundplatte 1 in Deckung gebracht, wobei der Steckersockel 92 mit dem Druchbruch 97 und die Durchgangsbohrungen 102 bis 107 mit den Öffnungen der Sackbohrungen 21 bis 27 des Lochbildes in der Grundplatte 1 fluchten. Darauf wird jede Einheit auf die Anschlußseite 18 der Grundplatte 1 aufgedrückt, wobei der Steckersockel 92 in den Durchbruch 97 zum Schacht 19 gesteckt und die Kontaktfahnen 93, 94 von den Kontaktklemmen 95, 96 der Leiterplatte 20 aufgenommen werden. Sodann wird jede Einheit ebenfalls mit geeigneten Befestigungsmitteln wie Schrauben auf der Grundplatte 1 befestigt.The valve block described in the exemplary embodiments according to FIGS. 1 and 2 is extremely simple and quick to assemble. First, the housing 41 with the pilot valves 3, 4 is attached to the mounting face 43 of the directional control valve 2 with fastening means, not shown, such as screws. Then prepared valve units are successively aligned with the corresponding sections of the connection side 18 of the base plate 1, the plug base 92 with the opening 97 and the through holes 102 to 107 with the openings of the blind holes 21 to 27 of the hole pattern in the base plate 1 swear. Each unit is then pressed onto the connection side 18 of the base plate 1, the plug base 92 being inserted into the opening 97 to the shaft 19 and the contact tabs 93, 94 being received by the contact terminals 95, 96 of the printed circuit board 20. Each unit is then also fastened to the base plate 1 using suitable fastening means such as screws.

Claims (8)

  1. Valve block with a baseplate (1), in which connection orifices in a hole pattern suitable for the attachment of directional valves (2) open out in a connection side (29) and ducts for incoming and outgoing air (11-17) and a well (19), extending parallel thereto, for an electrical installation device extend, with a plurality of directional valves (2) arranged next to one another on the connection side of the baseplate, having an adapted connection hole pattern and having at least one pilot valve (3, 4) which is assigned to each directional valve (2) and is actuated by an electromagnet and which engages by means of an electrical connecting plug into a plug connection of the electrical installation device in the well (19), characterized in that the pilot valve (3, 4) and the electromagnet (45, 46) are arranged in a common housing (41) which is arranged to bear with a lateral attachment face (42) against the end face (43) of the associated directional valve (2), and in that there projects laterally from this attachment face (42) of the housing (41), near the underside (91) of the housing (41) assigned to the connecting plug (92), a plate-shaped extension (101), against which, on the one hand, the directional valve (2) bears with its connection side (29) and, on the other hand, the baseplate (1) bears with its connection side (18), and which has passage bores (102 to 107) congruent with the connecting orifices of the baseplate (1) and of the directional valve (2).
  2. Valve block according to Claim 1, characterized in that the electrical connecting plug is designed as a plug base (92) projecting from the underside (91) of the housing (41) of the pilot valves (3, 4) and having projecting contact lugs (93, 94) which are contacted with contact receptacles (95, 96) of the electrical installation device (20) in the well (19) of the baseplate (1), and in that the plug base (92) engages into a perforation (97) in the baseplate (1) to the well (19).
  3. Valve block according to Claim 2, characterized in that the plug base (92) is sealed off in the perforation (97) of the baseplate (1) by means of a seal (98).
  4. Valve block according to one of Claims 1 to 3, characterized in that two pilot valves (3, 4) and two electromagnets (45, 46) actuating these are arranged one behind the other in the axial direction of the directional valve (2) in the housing (41) attached to an end face (43) of the directional valve (2).
  5. Valve block according to Claim 4, characterized in that the housing (41) together with the pilot valves (3, 4) is closed off on the topside by a cover (61).
  6. Valve block according to Claim 5, characterized in that there is arranged in the cover (61) of the housing (41) at least one valve seat (51, 52), with which the sealing face (53, 54) of the armature (47, 48) of the electromagnet (45, 46) cooperates.
  7. Valve block according to Claim 6, characterized in that ducts for incoming, outgoing and control air are formed in the cover (61) and in the housing (41) of the pilot valves (3, 4).
  8. Valve block according to one of Claims 1 to 3, characterized in that two pilot valves and two electromagnets actuating these are arranged one above the other in the housing (41) attached to an end face (43) of the directional valve (2).
EP19940906131 1993-02-24 1994-02-03 Valve block Expired - Lifetime EP0686239B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4305608 1993-02-24
DE19934305608 DE4305608A1 (en) 1993-02-24 1993-02-24 Valve block
PCT/DE1994/000102 WO1994019611A1 (en) 1993-02-24 1994-02-03 Valve block

Publications (2)

Publication Number Publication Date
EP0686239A1 EP0686239A1 (en) 1995-12-13
EP0686239B1 true EP0686239B1 (en) 1997-01-15

Family

ID=6481180

Family Applications (1)

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EP19940906131 Expired - Lifetime EP0686239B1 (en) 1993-02-24 1994-02-03 Valve block

Country Status (8)

Country Link
US (1) US5588465A (en)
EP (1) EP0686239B1 (en)
JP (1) JP3612069B2 (en)
KR (1) KR100289025B1 (en)
DE (2) DE4305608A1 (en)
ES (1) ES2097031T3 (en)
RU (1) RU2116525C1 (en)
WO (1) WO1994019611A1 (en)

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Also Published As

Publication number Publication date
ES2097031T3 (en) 1997-03-16
JPH08507589A (en) 1996-08-13
JP3612069B2 (en) 2005-01-19
KR960702095A (en) 1996-03-28
WO1994019611A1 (en) 1994-09-01
KR100289025B1 (en) 2001-05-02
DE59401608D1 (en) 1997-02-27
RU2116525C1 (en) 1998-07-27
DE4305608A1 (en) 1994-08-25
US5588465A (en) 1996-12-31
EP0686239A1 (en) 1995-12-13

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