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EP1356480A1 - Sealed-off switchgear - Google Patents

Sealed-off switchgear

Info

Publication number
EP1356480A1
EP1356480A1 EP02702302A EP02702302A EP1356480A1 EP 1356480 A1 EP1356480 A1 EP 1356480A1 EP 02702302 A EP02702302 A EP 02702302A EP 02702302 A EP02702302 A EP 02702302A EP 1356480 A1 EP1356480 A1 EP 1356480A1
Authority
EP
European Patent Office
Prior art keywords
sealing
housing
switching device
sealing web
connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02702302A
Other languages
German (de)
French (fr)
Other versions
EP1356480B1 (en
Inventor
Michael Müller
Heinz Jacobus
Matthias Stitz
Bruno Schneider
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.)
Bosch Rexroth AG
Hydac Electronic GmbH
Original Assignee
Bosch Rexroth AG
Hydac Electronic GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bosch Rexroth AG, Hydac Electronic GmbH filed Critical Bosch Rexroth AG
Publication of EP1356480A1 publication Critical patent/EP1356480A1/en
Application granted granted Critical
Publication of EP1356480B1 publication Critical patent/EP1356480B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/128—Encapsulating, encasing or sealing

Definitions

  • the invention relates to a switching device, in particular for actuating valves, with a housing and a coil body arranged therein, in which a switching part is guided and which is provided with a winding of a conductor which is connected to contact parts of a connector, at least parts , of the housing and the connector are surrounded with a plastic compound and wherein sealing means seal the interior of the switching device from the environment.
  • switching devices which are also referred to in technical terms as switching magnets, are known for example from DE 36 35 551 A1 and DE-GM 83 1 7 753 and on the. Market freely available.
  • the switching part is essentially formed from a tubular bolt which, when the coil is electrically excited, travels a predeterminable distance via a device plug which can be connected to the plug plate of a connecting plug and thereby triggers a switching operation, for example in a valve for shutting off and guiding fluid flows.
  • these known switching devices used in areas with high humidity, as they are, among other things, in the condensation and Ko .
  • Another magnet coil arrangement is known from DE 198 54 100 AI, which consists of an encapsulated coil with an injection-molded plug-in base for the connection of electrical connecting lines and a metal housing enclosing the encapsulated coil.
  • the contact lug assigned to the protective conductor connection is led through the plug-in base and connected to the metal housing .
  • a recess is provided between the plug base and the outer surface of the encapsulated coil, into which the metal housing engages.
  • a connecting element which electrically connects the contact lug to the metal housing, is guided through the recess within the plug-in base.
  • a sealing element surrounding the connecting element is arranged in the recess of the plug-in base.
  • Magnetic coil arrangements of this type are used to actuate electromagnetically actuated hydraulic valves in industrial hydraulics, in which metal parts which are accessible from the outside are to be connected to a protective conductor connection.
  • the solution in question is, however, complex to implement and the parts mentioned must be able to work together in a precisely fitting manner, which significantly increases the manufacturing outlay and consequently the manufacturing costs. Since a rubber sealing ring is also used again, failure due to embrittlement or leakage of the sealing ring mentioned cannot be ruled out if the switching device is used for a long time. Based on this prior art, the invention has for its object to provide a small-sized switching device which is particularly suitable for use in vehicle technology and which still allows reliable operation even at high humidity over a longer period of use.
  • At least one of the sealing means is formed from a sealing web, that the sealing web consists of a fusible material that when the plastic mass is applied, this. has a temperature that the respective sealing web melts in a fluid-tight manner with the plastic mass, that the sealing web is arranged on the underside of a plug plate of the Arisch plug and that the sealing web has at least the engaging parts of the connector which are connected to the housing in the molten state Connection condition with the plastic compound is fluid-tight from the environment, the use of the usual, subject to failure rubber sealing rings (O-rings) in the area of the connector can be completely dispensed with.
  • O-rings failure rubber sealing rings
  • the sealing web is arranged on the underside of a plug plate of the connector facing the housing, the sealing web sealing at least the engagement parts of the connector which are connected to the housing in the molten connection state with the plastic compound in a fluid-tight manner from the environment.
  • the sealing ring is preferably in one piece. Part 1 of the plug plate. This provides a secure, simple sealing possibility without having to make precise adjustment steps for axially pressing the known rubber sealing rings on the underside of the plug plate, as described in the prior art according to DE 43 41 087 C2.
  • Fig.2 is a bottom view of a connector part of the connector without inserted connector parts.
  • the switching device has a coil body 10 made of plastic material.
  • the end of the coil former 10 has two annular end flanges 12, between which the winding package 14 of a conductor 16 extends, which is shown only schematically in FIG.
  • a switching part (not shown) is guided in the coil former 10 and is surrounded by a so-called pole tube (not shown).
  • the arrangement in question is known, so that it is not dealt with in more detail at this point. However, when the switching device is actuated, the switching part can control conventional valves and thus determine their switching position.
  • the bobbin 10 is surrounded by a substantially cylindrical housing 18 made of metallic material.
  • the conductor 16 of the winding 14 is in an electrically conductive connection with contact parts 20 in the form of three connector lugs of a connector 22.
  • the details of the relevant connection technology between the conductor 16, the winding 14 and the electrically conductive parts of the connector 22 can be seen in particular in FIG. 2 of DE 43 41 087 C2, so that no further details will be given here
  • a plastic mass 24 is used, in particular in the form of a plastic casting compound. This can be injected in the gap between the parts mentioned at elevated temperature and cures there.
  • a casting or injection molding mold (not shown in more detail) is used, in which the parts of the switching device can be inserted.
  • the contact parts 20 in the form of the three plug tabs can be cut or punched out of a flat circuit board and are then encapsulated with the plastic material of the connector plug 22 in the form of the plug plate 26.
  • the relevant plug plate 26 is shown according to the illustration according to FIG. 2 viewed from below, the connector lugs being omitted for the sake of simplicity and only the three recesses 28 in the plug plate 26 through which the contact parts 20 in the form of Plug flags are carried out.
  • the plug plate 26 has an insert 30 essentially in the center, which is designed in the manner of a socket. By means of this plug insert 30, the plug plate 26 can be maintained while maintaining a distance on the outer Put on circumferential surface 32 of the housing 18.
  • the plug insert 30 has an internal thread 34 and two cutting inserts 36 which are separated from one another in the axial direction and are each provided with longitudinal teeth.
  • the relevant cutting inserts 36 guarantee a firm hold of the plug insert 30 both in the metal housing 18 and in the plug plate 26 with its plastic material.
  • the internal thread 34 is part of a screw connection which the plug plate 26 receives with a device plug (not shown) for the purpose of power connection.
  • the plug-in insert 30 is connected to the contact part 20 of the plug plate 26 serving as the ground connection 38 and in particular passes through the mentioned ground connection 38 in a conductive form.
  • the plug insert 30 is preferably already introduced into the plug plate 26 and is then pressed together with the latter against the housing 18 at least until a secure hold of the lower part of the cutting insert 36 in the Housing .18 is guaranteed.
  • the housing 18, the coil body 10 and the winding 14 are essentially rotationally symmetrical components and the plastic casting compound 24 is shown hatched in FIG. 1 and shows the poured-out spaces and column of the switching device.
  • the plastic compound 24 should also essentially ensure that moisture, for example in the form of condensate or the like, cannot penetrate into the switching device, although it cannot be ruled out that due to the Capillary action nevertheless moisture enters the switching device, the capillary action occurring in particular between the connecting surface of the plastic compound 24 and the other parts of the switching device, such as the housing 18 or the parts of the plug plate 26.
  • additional sealing means 40 are provided which seal the interior 42 of the switching device from the environment 44 (cf. FIG. 1).
  • the respective sealant 40 is formed from a sealing web 48, wherein the sealing web 48 consists of a meltable material and, when the plastic compound 24 is applied, it has a temperature such that the respective sealing web 48 melts in a fluid-tight manner with the plastic compound 24.
  • the sealing web 48 In order to be able to show the arrangement of the sealing web 48, this is shown in FIG. 1, although there the plastic mass 24 has already been introduced into the actual switching device. Accordingly, the sealing web 48 forms a closed sealing ring before it melts with the actual plastic compound 24.
  • the sealing web 48 is arranged on the underside 50 of the plug plate 26 of the connector plug 22 facing the housing 18. This sealing web 48 closes at least the engaging parts of the connector 22 in the form of the socket-like connector insert 30, which are connected to the housing 18, in the molten connection state with the plastic compound 24 from the environment 44 in a fluid-tight manner.
  • the sealing web 48 is an integral part of the connector plate 26 and protrudes on its other underside 50 by a predeterminable protrusion.
  • the sealing web 48 forms a type of circumferential sealing edge, the sealing web 48 being self-contained and comprising the bore 52 between its sealing edges, which later receives the plug insert 30 when the switching device is assembled.
  • the sealing web 48 delimits the relevant plug insert 30 from the two current-carrying connector tabs as contact parts 20, whereas the ground connection 38 within the sealing web 48 is located and passes through the associated recess 28. In this respect too, a delimitation from the ground connection 38 with the other two current-carrying contact parts 20 is achieved via the circumferential sealing edge in the form of the sealing web 48.
  • the sealing web 48 in question is designed as a melting ring or melting web, which melts as soon as it comes into contact with the hot extrusion compound and forms an integral connection with the plastic compound 24.
  • the sealing web 48 is thus preferably also made of a thermoplastic material similar to that of the plastic compound 24 and preferably consists of a polyamide material.
  • the sealing web 48 can be rectangular in cross section; but it is also a triangular cross-sectional shape or other cross-sectional shapes (not shown) possible without this affecting the sealing effect. Furthermore, the sealing web 48 can be chosen to have a very small structure, for example a width of 0.2 to 0.3 mm, and a Height from 0.3 to 0.4 mm.
  • the materials are to be chosen such that, for example, the plastic of the coil body 10 has a lower melting temperature than the plastic mass 24, so that melting on the sealing web 48 is guaranteed in any case by the encapsulation compound.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Glass Compositions (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electromagnets (AREA)

Abstract

A switchgear, especially for actuating valves, includes a housing ( 18 ) and a coil body ( 10 ) disposed in the housing. A switch element is guided in the coil body. The coil body is provided with a winding ( 14 ) of a conductor ( 16 ) that is connected to a plug connector ( 22 ) via contact elements ( 20 ). At least some sections of the housing ( 18 ) and of the plug connector ( 22 ) are enclosed by a plastic compound ( 24 ). Sealing devices ( 40 ) seal off the interior ( 42 ) of the switchgear from the surroundings ( 44 ). At least one of the sealing devices ( 40 ) is configured as a sealing web ( 48 ) of a meltable material. The sealing web ( 48 ) is disposed on the bottom face ( 50 ) of a plug plate ( 26 ) of the plug connector ( 22 ) which faces the housing ( 18 ). The sealing web ( 48 ), in the molten connection state, seals off at least the engaging parts of the plug connector ( 22 ) that are connected to the housing ( 18 ) from the surroundings ( 44 ) in a fluid-tight manner by the plastic compound ( 24 ), thereby eliminating the need for conventional rubber packing rings (O rings) in the area of the plug connector that are prone to failures.

Description

Abgedichtete Schaltvorrichtung Sealed switching device
Die Erfindung betrifft eine Schaltvorrichtung, insbesondere zum Betätigen von Ventilen, mit einem Gehäuse und einem darin angeordneten Spulenkörper, in dem ein Schaltteil geführt und der mit einer Wicklung eines Leiters versehen ist, der mit Kontaktteilen eines Anschlußsteckers in Verbin- düng steht, wobei zumindest Teile. des Gehäuses und des Anschlußsteckers mit einer Kunststoffmasse umgeben sind und wobei Dichtmittel das Innere der Schaltvorrichtung gegenüber der Umgebung abdichten.The invention relates to a switching device, in particular for actuating valves, with a housing and a coil body arranged therein, in which a switching part is guided and which is provided with a winding of a conductor which is connected to contact parts of a connector, at least parts , of the housing and the connector are surrounded with a plastic compound and wherein sealing means seal the interior of the switching device from the environment.
Dahingehende Schaltvorrichtungen, die man in der Fachsprache auch als Schaltmagnete bezeichnet, sind beispielsweise durch die DE 36 35 551 A1 und das DE-GM 83 1 7 753 bekannt und auf dem. Markt frei erhältlich. Das Schaltteil ist im wesentlichen aus einem rohrförmigen Bolzen gebildet, der bei elektrischer Erregung der Spule über einen an die Steckerplatte eines Anschlußsteckers anschließbaren Gerätestecker eine vorgebbare Wegstrek- ke zurücklegt und hierbei einen Schaltvorgang auslöst, beispielsweise bei einem Ventil zum Absperren und Führen von Fluidströmen. Werden diese bekannten Schaltvorrichtungen in Bereichen mit hoher Feuchtigkeit eingesetzt, wie sie sich unter anderem auch, bei der Schwitzwasser- und Ko.nden- satbildung ergibt, dringt die Feuchtigkeit ins Gehäuseinnere insbesondere zu dem Spulenkörper mit der Wicklung vor und führt dort mit einsetzender Korrosion zu einem Unbrauchbarwerden der Schaltvorrichtung. Es ist zwar schon vorgeschlagen worden, zur Umgehung dieses Problems das Gehäuse der Schaltvorrichtung vollständig mit einer die Feuchtigkeit abhaltenden Kunststoff-Vergußmasse zu umgeben, was jedoch zu sehr groß aufbauenden Schaltvorrichtungen führt, die für den Einsatz In der Fahrzeύgtechnik (Mobiltechnik), wo grundsätzlic nur wenig Einbauraum zur Verfügung steht, nicht geeignet sind.Such switching devices, which are also referred to in technical terms as switching magnets, are known for example from DE 36 35 551 A1 and DE-GM 83 1 7 753 and on the. Market freely available. The switching part is essentially formed from a tubular bolt which, when the coil is electrically excited, travels a predeterminable distance via a device plug which can be connected to the plug plate of a connecting plug and thereby triggers a switching operation, for example in a valve for shutting off and guiding fluid flows. Are these known switching devices used in areas with high humidity, as they are, among other things, in the condensation and Ko . formation of end satin, the moisture penetrates into the interior of the housing in particular to the coil former with the winding and there leads, with the onset of corrosion, to the switch device becoming unusable. To avoid this problem, it has already been proposed to completely surround the housing of the switching device with a moisture-sealing plastic casting compound, but this leads to very large switching devices which are suitable for use in vehicle technology (mobile technology), wherever only little installation space is available, are not suitable.
Bei einer Schaltvorrichtung nach der FR 1 348 792 ist zwar bereits vorgeschlagen worden, anstelle der Abdichtung über eine Kunststoff-Vergußmasse die möglichen Eindringstellen von Feuchtigkeit in das Gehäuse über Gummi-Dichtringe (O-Ringe) abzudichten/ die endseitig in Sitzen. von Gehäusedeckeln der Vorrichtung sowie zwischen dem Gehäuse und dem Steckeinsatz der Steckerplatte angeordnet sind. Es hat sich jedoch auch hier gezeigt, daß die Dichtwirkung insbesondere im< Bereich des Steckeinsatzes der Steckerplatte gegenüber eindringender Feuchtigkeit nicht zufriedenstellend ist und daß mit zunehmendem Alter der Schaltvorrichtung, die mit einer Versprödung der Dichtringe einhergehen kann, die Abdichtung.voll- ständig verloren geht.In a switching device according to FR 1 348 792, it has already been proposed to seal the possible penetration points of moisture into the housing by means of rubber sealing rings (O-rings) instead of sealing by means of a plastic casting compound / the ends in seats. of housing covers of the device and between the housing and the plug insert of the plug plate are arranged. However, it has also been shown here that the sealing effect, particularly in the area of the plug-in insert of the plug plate, is unsatisfactory with respect to penetrating moisture and that with increasing age of the switching device, which can be associated with embrittlement of the sealing rings, the seal is completely lost ,
Eine weitere Magnetspulenanordnung ist durch die DE 198 54 100 AI bekannt, die aus einer gekapselten Spule mit einem angespritzten Stecksockel für den Anschluß von elektrischen Anschlußleitungen und einem die ge- kapselte Spule umschließenden Metallgehäuse besteht. Die dem Schutzleiteranschluß zugeordnete Kontaktfahne ist durch den Stecksockel geführt und mit dem Metallgehäuse verbunden...Um zu verhindern, daß aufgrund der Kapillarwirkung zwischen der Kontaktfahne und dem diese umschließenden Kunststoff Feuchtigkeit in den Abschlußraum des Stecksockels ein- dringt, ist zwischen dem Stecksockel und der Außenfläche der gekapselten Spule eine Ausnehmung vorgesehen, in die das Metallgehäuse eingreift. Durch die Aussparung innerhalb des Stecksockels ist ein Verbindungselement geführt, das die Kontaktfahne mit dem Metallgehäuse elektrisch verbindet. Ein das Verbindungselement umschließendes Dichtelement ist in der Aussparung des Stecksockels angeordnet. Derartige Magnetspulenanordnungen werden zur Betätigung von elektromagnetisch betätigten hydraulischen Ventilen in der Industriehydraulik verwendet, bei denen von außen zugängliche Metallteile mit einem Schutzleiteranschluß zu verbinden sind.Another magnet coil arrangement is known from DE 198 54 100 AI, which consists of an encapsulated coil with an injection-molded plug-in base for the connection of electrical connecting lines and a metal housing enclosing the encapsulated coil. The contact lug assigned to the protective conductor connection is led through the plug-in base and connected to the metal housing . To prevent the capillary action between the contact lug and the plastic enclosing it, moisture from entering the end space of the plug-in base. penetrates, a recess is provided between the plug base and the outer surface of the encapsulated coil, into which the metal housing engages. A connecting element, which electrically connects the contact lug to the metal housing, is guided through the recess within the plug-in base. A sealing element surrounding the connecting element is arranged in the recess of the plug-in base. Magnetic coil arrangements of this type are used to actuate electromagnetically actuated hydraulic valves in industrial hydraulics, in which metal parts which are accessible from the outside are to be connected to a protective conductor connection.
Bei einer gattungsgemäßen Schaltvorrichtung nach der DE 43 41 087 C2 hat man versucht, dem vorstehend genannten Problem dadurch zu begegnen, daß der genannte Steckeinsatz für die Anlage eines ringförmigen Dichtteils eine Anlagefläche aufweist, die mit einem vorgebbaren axialen Überstand über die der Außenumfangsfläche des Gehäuses zugewandte Unterseite der Steckerplatte derart vorsteht, daß im Einbauzustand durch Verpressen des ringförmigen Gummidichtteils zumindest der in Richtung des Spulenkörpers auftretende Spalt zwischen Steckerplatte und der Außenumfangsfläche des Gehäuses dichtend verschlossen ist, so daß derart die Feuchtigkeit an der Stelle des Aufsatzes.der Steckerplatte nicht mehr in das Gehäuseinnere und insbesondere nicht zu dem Spulenkörper mit der Wicklung gelangen kann. Die dahingehende Lösung ist jedoch aufwendig zu realisieren und die genannten Teile müssen paßgenau zusammenwirken können, was den Herstellaufwand und mithin die Herstell kosten deutlich erhöht. Da im übrigen wieder ein Gummidichtring eingesetzt ist, ist gleichfalls bei langer Einsatzdauer der Schaltvorrichtung ein Versagen durch Ver- sprödung oder Undichtwerden des genannten Dichtringes nicht ausgeschlossen. Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine klein aufbauende Schältvorrichtung zu schaffen, die insbesondere für den Einsatz in der Fahrzeugtechnik geeignet ist und die dennoch auch bei hoher Feuchte einen funktionssicheren Betrieb auch über eine längere Einsatzdauer hinweg erlaubt.In a generic switching device according to DE 43 41 087 C2, attempts have been made to counter the above-mentioned problem by the fact that the plug-in insert for the installation of an annular sealing part has a contact surface which, with a predeterminable axial projection, faces that facing the outer peripheral surface of the housing Underside of the connector plate protrudes in such a way that in the installed state, by pressing the annular rubber sealing part, at least the gap between the connector plate and the outer circumferential surface of the housing that occurs in the direction of the coil body is sealed, so that the moisture in the place of the attachment of the connector plate no longer enters the Interior of the housing and in particular can not get to the coil former with the winding. The solution in question is, however, complex to implement and the parts mentioned must be able to work together in a precisely fitting manner, which significantly increases the manufacturing outlay and consequently the manufacturing costs. Since a rubber sealing ring is also used again, failure due to embrittlement or leakage of the sealing ring mentioned cannot be ruled out if the switching device is used for a long time. Based on this prior art, the invention has for its object to provide a small-sized switching device which is particularly suitable for use in vehicle technology and which still allows reliable operation even at high humidity over a longer period of use.
Diese Aufgabe löst eine Schaltvorrichtung mit den Merkmalen des Anspruches 1 in seiner Gesamtheit.This object is achieved by a switching device with the features of claim 1 in its entirety.
Dadurch, daß gemäß dem kennzeichnenden Teil des Anspruches 1 mindestens eines der Dichtmittel aus einem Dichtsteg gebildet ist, daß der Dichtsteg aus einem schmelzbaren Material besteht, daß beim Aufbringen der Kunststoffmasse diese. eine Temperatur aufweist, daß der jeweilige Dichtsteg mit der Kunststoffmasse fluiddicht verschmilzt, daß der Dichtsteg auf der dem Gehäuse zugewandten Unterseite einer Steckerplatte des Arisch lußsteckers angeordnet ist und daß der Dichtsteg zumindest die Eingriffsteile des Anschlußsteckers, die mit dem Gehäuse in Verbindung stehen, im geschmolzenen Verbindungszustand mit der Kunststoffmasse gegenüber der Umgebung fluiddicht abschließt, kann auf den Einsatz der üblichen, einem Versagen unterliegenden Gummidichtringe (O-Ringe) im Bereich des Anschlußsteckers vollständig verzichtet werden. Durch das thermische Verschmelzen des Dichtsteges mit der Kunststoffvergußmasse findet ein homogenes Verschmelzen von einander zugewandten Materialpartien statt, . die unter beliebigen Einsatzbedingungen auch bei sehr hoher Feuchte oder Kondensateintrag eine sichere Abdichtung der Funktionsteile gegenüber der Umgebung gewährleisten und mithin einen sicheren Betrieb der Schaltvorrichtung auch über eine sehr. lange Einsatzdauer hinweg. Da im übrigen der eingesetzte Dichtsteg konstruktiv ausgesprochen klein aufbaut, nehmen die hergestellten Dichtstrecken selbst wiederum keinen oder nur einen gering- fügigen Bauraum ein, so daß sich insgesamt die Schaltvorrichtung oder der Schaltmagnet konstruktiv klein aufbauend auslegen läßt. Da die Schaltvorrichtung ohnehin mit der Kunststoffvergüßmasse umspritzt wird, läßt sich das Abdichten der Vorrichtung mit dem eigentlichen Umspritzen oder Umgießen mit der Kunststoff masse in einem Arbeitsgang erledigen, was die Herstellung deutlich vereinfacht und die Herstellkosten senkt. Auf das bisherige aufwendige zusätzliche Einlegen von Dichtringen und deren genaue Positionierung innerhalb der Schaltvorrichtung im Bereich des Anschlußsteckers kann daher verzichtet werden.Characterized in that, according to the characterizing part of claim 1, at least one of the sealing means is formed from a sealing web, that the sealing web consists of a fusible material that when the plastic mass is applied, this. has a temperature that the respective sealing web melts in a fluid-tight manner with the plastic mass, that the sealing web is arranged on the underside of a plug plate of the Arisch plug and that the sealing web has at least the engaging parts of the connector which are connected to the housing in the molten state Connection condition with the plastic compound is fluid-tight from the environment, the use of the usual, subject to failure rubber sealing rings (O-rings) in the area of the connector can be completely dispensed with. Due to the thermal fusion of the sealing web with the plastic sealing compound, homogeneous fusion of parts of the material facing each other takes place,. which guarantee a secure seal of the functional parts from the environment under any conditions of use, even with very high humidity or condensate entry, and thus safe operation of the switching device even over a very long period. long service life. Since, moreover, the sealing web used is extremely small in terms of construction, the sealing sections produced themselves again take little or no added space, so that overall the switching device or the switching magnet can be designed with a small construction. Since the switching device is encapsulated with the plastic potting compound anyway, the sealing of the device with the actual encapsulation or encapsulation with the plastic compound can be done in one operation, which significantly simplifies production and reduces manufacturing costs. The previous complicated additional insertion of sealing rings and their exact positioning within the switching device in the area of the connector can therefore be dispensed with.
Der Dichtsteg ist auf der dem Gehäuse zugewandten Unterseite einer Stekkerplatte des Anschlußsteckers angeordnet, wobei der Dichtsteg zumindest die Eingriffsteile des Anschlußsteckers, die mit dem Gehäuse in Verbindung stehen, im geschmolzenen Verbindungszustand mit der Kunststoffmasse gegenüber der Umgebung fluiddicht abschließt. Vorzugsweise ist der Dichtring dabei einstückiger. Bestandteil1 der Stecke rplatte. Damit ist eine sichere einfache Abdichtmöglichkeit gegeben, ohne daß man, wie im Stand der Technik nach der DE 43 41 087 C2 beschrieben, erst genaue Anpaßschritte für ein axiales Verpressen der bekannten Gummidichtringe an der Untersei- te der Steckerplatte vornehmen müßte.The sealing web is arranged on the underside of a plug plate of the connector facing the housing, the sealing web sealing at least the engagement parts of the connector which are connected to the housing in the molten connection state with the plastic compound in a fluid-tight manner from the environment. The sealing ring is preferably in one piece. Part 1 of the plug plate. This provides a secure, simple sealing possibility without having to make precise adjustment steps for axially pressing the known rubber sealing rings on the underside of the plug plate, as described in the prior art according to DE 43 41 087 C2.
Dadurch, daß zwischen dem Dichtsteg und dem Gehäuse oder zwischen dem Gehäuse und dem Anschlußstecker derart ein freier Raum oder Spalt besteht, daß beim Umspritzen mittels der heißen Kunststoff masse diese un- gehindert zu dem Dichtsteg gelangt und diesen allseitig bis zu seinem Abschmelzen umfließt, ist auch für die Kunststoffmasse selbst ein verbessertes Strömungsverhalten beim Ummantein der Schaltvorrichtung bzw. ihrer wesentlichen Teile erreicht, was wiederum fertigungstechnisch günstig ist. Auf den Einsatz von zusätzlichen Dichtmitteln in Form von Gummidichtringen od.dgl. kann durch die Verwendung des als Abschmelzsteg ausgebildeten Dichtsteges in Verbindung mit dem Verschmelzungsprozess mit der heißen Kunststoff masse jedenfalls verzichtet Werden.Characterized in that there is a free space or gap between the sealing web and the housing or between the housing and the connector so that when encapsulated by means of the hot plastic mass, it reaches the sealing web unhindered and flows around on all sides until it melts also achieved an improved flow behavior for the plastic mass itself when the switching device or its essential parts are encased, which in turn is favorable in terms of production technology. On the use of additional sealants in the form of rubber sealing rings or the like. can in any case be dispensed with by using the sealing web designed as a melting web in connection with the melting process with the hot plastic mass.
Weitere vorteilhafte Ausgestaltungen sirid Gegenstand der sonstigen Unteransprüche.Further advantageous refinements are the subject of the other subclaims.
Ein Ausführungsbeispiel der erfindungsgemäßen Schaltvorrichtung wird nun im folgenden anhand der Zeichnung näher erläutert. Es zeigen in prinzipieller und nicht maßstäblicher Darstellung dieAn embodiment of the switching device according to the invention will now be explained in more detail below with reference to the drawing. They show the principle and not to scale
Fig.1 einen Längsschnitt durch die Schaltvorrichtung ohne Polrohr und ohne Schaltteil mit deutlich vergrößert dargestelltem Abschmelzsteg;1 shows a longitudinal section through the switching device without pole tube and without switching part with the melting web shown clearly enlarged;
Fig.2 eine Unteransicht auf ein Steckerteil des Anschlußsteckers ohne.eingesetzte Steckerteile.Fig.2 is a bottom view of a connector part of the connector without inserted connector parts.
Die Schaltvorrichtung weist einen Spulenkörper 10 aus Kunststoffmaterial auf. Der Spulenkörper 10 hat endseitig zwei ringförmige Stirnflansche 12, zwischen denen sich das Wicklungspaket 14 eines Leiters 16 erstreckt, welches in der Fig.1 nur schematisch wiedergegeben ist. In dem Spulenkörper 10 ist ein Schaltteil (nicht dargestellt) geführt, das von einem sog. Polrohr (nicht dargestellt) umgeben ist. Die dahingehende Anordnung ist bekannt, so daß an dieser Stelle hierauf nicht näher eingegangen wird. Mit dem Schaltteil lassen sich jedoch bei Betätigung der Schaltvorrichtung übliche Ventile ansteuern und damit deren Schaltstellung bestimmen. Der Spulenkörper 10 ist von einem im wesentlichen zylindrisch ausgebildeten Gehäuse 18 aus metallischem Werkstoff umgeben. Der Leiter 16 der Wicklung 14 steht mit Kontaktteilen 20 in Form dreier Steckerfahnen eines Anschlußsteckers 22 elektrisch leitend in Verbindung. Die Einzelheiten der dahingehenden Anschlußtechnik zwischen dem Leiter 16, der Wicklung 14 und den elektrisch leitenden Teilen des Anschlußsteckers 22 lassen sich insbesondere aus der Fig.2 der DE 43 41 087 C2 ersehen, so daß an dieser Stelle hierauf nicht mehr näher eingegangen wird.The switching device has a coil body 10 made of plastic material. The end of the coil former 10 has two annular end flanges 12, between which the winding package 14 of a conductor 16 extends, which is shown only schematically in FIG. A switching part (not shown) is guided in the coil former 10 and is surrounded by a so-called pole tube (not shown). The arrangement in question is known, so that it is not dealt with in more detail at this point. However, when the switching device is actuated, the switching part can control conventional valves and thus determine their switching position. The bobbin 10 is surrounded by a substantially cylindrical housing 18 made of metallic material. The conductor 16 of the winding 14 is in an electrically conductive connection with contact parts 20 in the form of three connector lugs of a connector 22. The details of the relevant connection technology between the conductor 16, the winding 14 and the electrically conductive parts of the connector 22 can be seen in particular in FIG. 2 of DE 43 41 087 C2, so that no further details will be given here.
Zur elektrischen Isolierung der leitenden Material partien, insbesondere zwischen Teilen des Gehäuses 18, der Wicklung 14 und leitenden Teilen des Anschlußsteckes 22, dient eine Kunststoff masse 24, insbesondere in Form einer Kunststoffvergußmasse. Diese ist in Spalte zwischen den genannten Teilen mit erhöhter Temperatur einspritzbar und härtet dort aus. Für das dahingehende Umspritzen der eigentlichen Schaltvorrichtung mit der Kunststoffmasse 24 dient eine Umgieß- oder Umspritzform (nicht näher dargestellt), in die die Teile der Schaltvorrichtung eingelegt werden können.For electrical insulation of the conductive material parts, in particular between parts of the housing 18, the winding 14 and conductive parts of the connector 22, a plastic mass 24 is used, in particular in the form of a plastic casting compound. This can be injected in the gap between the parts mentioned at elevated temperature and cures there. For the encapsulation of the actual switching device with the plastic compound 24, a casting or injection molding mold (not shown in more detail) is used, in which the parts of the switching device can be inserted.
Die Kontaktteile 20 in Form der drei Steckerfahnen lassen sich aus einer ebenen Platine ausschneiden oder ausstanzen und werden anschließend mit dem Kunststoffmaterial des Anschlußsteckers 22 in Form der Steckerplatte 26 umgössen. Die dahingehende Steckerplatte 26 ist gemäß der Darstellung nach der Fig.2 von unten her gesehen dargestellt, wobei der einfacheren Darstellung wegen die Steckerfahnen weggelassen wurden und nur die drei Ausnehmungen 28 in der Steckerplatte 26 zu sehen sind, durch die die Kontaktteile 20 in Form der Steckerfahnen hiηdurchgeführt werden. Die Steckerplatte 26 weist im wesentlichen mittig einen Steckei.nsatz 30 auf, der in der Art einer Buchse ausgebildet ist. Mittels dieses Steckeinsatzes 30 läßt sich die Steckerplatte 26 unter Beibehalten eines Abstandes auf der Außen- umfangsfläche 32 des Gehäuses 18 aufsetzen. Ferner weist der Steckeinsatz 30 ein Innengewinde 34 und zwei voneinander in axialer Richtung getrennte Schneideinsätze 36 auf, die jeweils mit einer Längsverzahnung versehen sind. Die dahingehenden Schneideinsätze 36 garantieren einen festen Halt des Steckeinsatzes 30 sowohl im Metallgehäuse 18 als auch in der Steckerplatte 26 mit ihrem Kunststoffmaterial.The contact parts 20 in the form of the three plug tabs can be cut or punched out of a flat circuit board and are then encapsulated with the plastic material of the connector plug 22 in the form of the plug plate 26. The relevant plug plate 26 is shown according to the illustration according to FIG. 2 viewed from below, the connector lugs being omitted for the sake of simplicity and only the three recesses 28 in the plug plate 26 through which the contact parts 20 in the form of Plug flags are carried out. The plug plate 26 has an insert 30 essentially in the center, which is designed in the manner of a socket. By means of this plug insert 30, the plug plate 26 can be maintained while maintaining a distance on the outer Put on circumferential surface 32 of the housing 18. Furthermore, the plug insert 30 has an internal thread 34 and two cutting inserts 36 which are separated from one another in the axial direction and are each provided with longitudinal teeth. The relevant cutting inserts 36 guarantee a firm hold of the plug insert 30 both in the metal housing 18 and in the plug plate 26 with its plastic material.
Das Innengewinde 34 ist dabei Teil einer Schraubverbindung, die die Stekkerplatte 26 zwecks Stromanschluß mit einem Gerätestecker (nicht darge- stellt) mit diesem eingeht. Der Steckeinsatz 30 ist dabei mit dem als Masseanschluß 38 dienenden Kontaktteil 20 der Steckerplatte 26 verbunden und durchgreift insbesondere den angesprochenen Masseanschluß 38 in leitender Form. Zum Herstellen der Verbindung von Steckerplatte 26 mit dem Gehäuse 18 ist vorzugsweise der Steckeinsatz 30 bereits in die 'Steckerplatte 26 eingebracht und wird anschließend zusammen mit dieser gegen das Gehäuse 18 zumindest so lange verpreßt, bis ein sicherer Halt des unteren Teils des Schneideinsatzes 36 in dem Gehäuse .18 gewährleistet ist. Das Gehäuse 18, der Spulenkörper 10 sowie die Wicklung 14 sind im wesentlichen rotationssymmetrisch ausgebildete Bauteile und die Kunststoffverguß- masse 24 ist in der Fig.1 entsprechend schraffiert dargestellt und zeigt die ausgegossenen Räume, und Spalte der Schaltvorric.htung. Die Kunststoffma- sse 24 soll neben der elektrischen Isolierung im wesentlichen auch sicherstellen, daß Feuchtigkeit, beispielsweise in Form von Kondensat od.dgl., nicht in die Schaltvorricht.uηg eindringen kann, wobei jedoch nicht ausge- schlössen werden kann, daß aufgrund.der Kapillarwirkung dennoch Feuchtigkeit in die Schaltvorrichtung gelangt, wobei die Kapillarwirkung insbesondere zwischen der Verbindungsfläche der Kunststoffmasse 24 und den sonstigen Teilen der Schaltvorrichtung, wie Gehäuse 18 oder den Teilen der Steckerplatte 26 entsteht. Um der dahingehenden Kapillarwirkung ent- gegenzutreten, sind zusätzliche Dichtmittel 40 vorgesehen, die das Innere 42 der Schaltvorrichtu g gegenüber-der Umgebung 44 (vgl. Fig.1 ) abdichten.The internal thread 34 is part of a screw connection which the plug plate 26 receives with a device plug (not shown) for the purpose of power connection. The plug-in insert 30 is connected to the contact part 20 of the plug plate 26 serving as the ground connection 38 and in particular passes through the mentioned ground connection 38 in a conductive form. To establish the connection of plug plate 26 with the housing 18, the plug insert 30 is preferably already introduced into the plug plate 26 and is then pressed together with the latter against the housing 18 at least until a secure hold of the lower part of the cutting insert 36 in the Housing .18 is guaranteed. The housing 18, the coil body 10 and the winding 14 are essentially rotationally symmetrical components and the plastic casting compound 24 is shown hatched in FIG. 1 and shows the poured-out spaces and column of the switching device. In addition to the electrical insulation, the plastic compound 24 should also essentially ensure that moisture, for example in the form of condensate or the like, cannot penetrate into the switching device, although it cannot be ruled out that due to the Capillary action nevertheless moisture enters the switching device, the capillary action occurring in particular between the connecting surface of the plastic compound 24 and the other parts of the switching device, such as the housing 18 or the parts of the plug plate 26. To avoid the capillary action to counteract, additional sealing means 40 are provided which seal the interior 42 of the switching device from the environment 44 (cf. FIG. 1).
Das jeweilige Dichtmittel 40 ist aus einem Dichtsteg 48 gebildet, wobei der Dichtsteg 48 aus einem schmelzbaren Material besteht und wobei beim Aufbringen der Kunststoffmasse 24 diese eine Temperatur aufweist, daß der jeweilige Dichtsteg 48 mit der Kunststoffmasse 24 fluiddicht verschmilzt. Um die Anordnung des Dichtsteges 48 zeigen zu können, ist dieser bilcllich in der Fig.1 dargestellt, obwohl dort bereits die Kunststoff masse 24 in die eigentliche Schaltvorrichtung eingebracht worden ist. Demgemäß bildet der Dichtsteg 48 vor dem Verschmelzen mit der eigentlichen Kunststoffmasse 24 einen geschlossenen Dichtring aus.The respective sealant 40 is formed from a sealing web 48, wherein the sealing web 48 consists of a meltable material and, when the plastic compound 24 is applied, it has a temperature such that the respective sealing web 48 melts in a fluid-tight manner with the plastic compound 24. In order to be able to show the arrangement of the sealing web 48, this is shown in FIG. 1, although there the plastic mass 24 has already been introduced into the actual switching device. Accordingly, the sealing web 48 forms a closed sealing ring before it melts with the actual plastic compound 24.
Der Dichtsteg 48 ist auf der dem Gehäuse 18 zugewandten Unterseite 50 der Steckerplatte 26 des Anschlußsteckers 22 angeordnet. Dieser Dichtsteg 48 schließt zumindest die Eingriffsteile des Anschlußsteckers 22 in Form des buchsenartigen Steckereinsatzes 30, die mit dem Gehäuse 18 in Verbindung stehen, im geschmolzenen Verbindungszustand mit der Kunst- stoffmasse 24 gegenüber der Umgebung 44 fluiddicht ab. Wie insbesondere die Fig.2 zeigt, ist der Dichtsteg 48 einstückiger Bestandteil der Steckerplatte 26 und steht auf ihrer sonstigen Unterseite 50.um einen vorgebbaren Überstand hervor. Wie insbesondere die Fig.2 zeigt, bildet also der Dichtsteg 48 eine Art umlaufende Dichtkante aus, wobei der Dichtsteg 48 in sich geschlossen ist und zwischen seinen Dichtkanten die Bohrung 52 umfaßt, die später im zusammengebauten Zustand der Schaltvorrichtung den Steckeinsatz 30 aufnimmt. Ferner grenzt der Dichtsteg 48 den dahingehenden Steckeinsatz 30 von den beiden stromführenden Steckerfahnen als Kontaktteile 20 ab, wohingegen der Masseanschluß 38 innerhalb des .Dichtsteges 48 liegt und dort die zugeordnete Ausnehmung 28 durchgreift. Auch insoweit ist über die umlaufende Dichtkante in Form des Dichtsteges 48 eine Abgrenzung von Masseanschluß 38 mit den sonstigen beiden stromführenden Kontaktteilen 20 erreicht. Der dahingehende Dichtsteg 48 ist als Ab- schmelzring oder Abschmeizsteg ausgebildet, der, sobald er in Kontakt mit der heißen Umspritzmasse kommt, schmilzt und eine einstückige Verbindung mit der Kunststoffmasse 24 eingeht. Der Dichtsteg 48 ist also vorzugsweise gleichfalls aus einem thermoplastischen Material ähnlich dem der Kunststoffmasse 24 gebildet und besteht vorzugsweise aus einem Po- lyamidwerkstoff.The sealing web 48 is arranged on the underside 50 of the plug plate 26 of the connector plug 22 facing the housing 18. This sealing web 48 closes at least the engaging parts of the connector 22 in the form of the socket-like connector insert 30, which are connected to the housing 18, in the molten connection state with the plastic compound 24 from the environment 44 in a fluid-tight manner. As FIG. 2 shows in particular, the sealing web 48 is an integral part of the connector plate 26 and protrudes on its other underside 50 by a predeterminable protrusion. As shown in FIG. 2 in particular, the sealing web 48 forms a type of circumferential sealing edge, the sealing web 48 being self-contained and comprising the bore 52 between its sealing edges, which later receives the plug insert 30 when the switching device is assembled. Furthermore, the sealing web 48 delimits the relevant plug insert 30 from the two current-carrying connector tabs as contact parts 20, whereas the ground connection 38 within the sealing web 48 is located and passes through the associated recess 28. In this respect too, a delimitation from the ground connection 38 with the other two current-carrying contact parts 20 is achieved via the circumferential sealing edge in the form of the sealing web 48. The sealing web 48 in question is designed as a melting ring or melting web, which melts as soon as it comes into contact with the hot extrusion compound and forms an integral connection with the plastic compound 24. The sealing web 48 is thus preferably also made of a thermoplastic material similar to that of the plastic compound 24 and preferably consists of a polyamide material.
Wie in den Figuren dargestellt, kann der Dichtsteg 48 im Querschnitt recht- eckförmig sein; es ist aber auch eine dreieckförmige Querschnittsform oder sonstige Querschnittsformen (nicht dargestellt) möglich, ohne daß dies die Dichtwirkung beeinträchtigt, Ferner kann der Dichtstege 48 sehr klein aufbauend gewählt sein, beispielsweise eine Breite von 0,2 bis 0,3 mm aufweisen, und eine Höhe von 0,3 bis 0,4 mm.As shown in the figures, the sealing web 48 can be rectangular in cross section; but it is also a triangular cross-sectional shape or other cross-sectional shapes (not shown) possible without this affecting the sealing effect. Furthermore, the sealing web 48 can be chosen to have a very small structure, for example a width of 0.2 to 0.3 mm, and a Height from 0.3 to 0.4 mm.
Insbesondere sind die Materialien derart zu wählen, daß beispielsweise der Kunststoff des Spulenkörpers 10 eine geringere Schmelztemperatur hat als die Kunststoff masse 24, so daß auf jeden Fall durch die Umspritzmasse ein Anschmelzen an dem Dichtsteg 48 gewährleistet ist. Vergleichbares gilt auch für die Wahl des Kunststoffes für den Anschlußstecker 22. In particular, the materials are to be chosen such that, for example, the plastic of the coil body 10 has a lower melting temperature than the plastic mass 24, so that melting on the sealing web 48 is guaranteed in any case by the encapsulation compound. The same applies to the choice of plastic for the connector 22.

Claims

P a t e n t a n s p r ü c h e Patent claims
1 . Schaltvorrichtung, insbesondere zum Betätigen von Ventilen, mit einem Gehäuse (18) und einem darin angeordneten Spulenkörper (10), in dem ein Schaltteil geführt und der mit einer Wicklung (14) eines Leiters (16) versehen ist, der mit Kontaktteilen (20) eines Anschlußsteckers (22) in Verbindung steht, wobei zumindest Teile des Gehäuses (18) und des Anschlußsteckers (22) mit einer Kunststoffmasse (24) umgeben sind und wobei Dichtmittel (40) das Innere (42) der Schaltvorrichtung gegenüber der Umgebung (44) abdichten/dadurch gekennzeichnet, daß mindestens eines der Dichtmittel (40) aus einem Dichtsteg (48) gebildet ist, daß der Dichtsteg (48) aus einem schmelzbaren Material besteht, daß der Dichtsteg (48) auf der dem Gehäuse (18) zugewandten Unterseite (50) einer Steckerplatte (26) des Anschlußsteckers (22) angeordnet ist und daß der Dichtsteg (48) zumindest die Eingriffsteile des Anschlußsteckers (22), die mit dem Gehäuse (18) in Verbindung stehen, im geschmolzenen Verbindungszustand mit der Kunststoffmasse (24) gegenüber der Umgebung (44) fluiddicht abschließt.1 . Switching device, in particular for actuating valves, with a housing (18) and a coil former (10) arranged therein, in which a switching part is guided and which is provided with a winding (14) of a conductor (16) which is provided with contact parts (20) a connector (22) is connected, at least parts of the housing (18) and connector (22) being surrounded by a plastic compound (24) and sealing means (40) sealing the interior (42) of the switching device from the environment (44) seal / characterized in that at least one of the sealing means (40) is formed from a sealing web (48), that the sealing web (48) consists of a fusible material, that the sealing web (48) on the underside (18) facing the housing (18) 50) a plug plate (26) of the connector (22) is arranged and that the sealing web (48) at least the engaging parts of the connector (22) which are connected to the housing (18) in the molten connection Condition with the plastic compound (24) in a fluid-tight manner with respect to the surroundings (44).
2. Schaltvorrichtung nach Anspruch 1,. dadurch gekennzeichnet, daß der Dichtsteg (48) vor dem Verschmelzen mit der Kunststoffmasse (24) einen geschlossenen Ring ausbildet. .2. Switching device according to claim 1. characterized in that the sealing web (48) forms a closed ring before it melts with the plastic compound (24). ,
3. Schaltvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Dichtsteg (48) einstückiger Bestandteil der Steckerp latte (26) ist.3. Switching device according to claim 1 or 2, characterized in that the sealing web (48) is an integral part of the Steckerp plate (26).
4. Schaltvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Dichtsteg (48) aus thermoplastischem Material gebildet ist. 4. Switching device according to one of claims 1 to 3, characterized in that the sealing web (48) is formed from thermoplastic material.
5. Schaltvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Dichtsteg (48) im Querschnitt rechteckförmig oder dreieckförmig ausgebildet ist.5. Switching device according to one of claims 1 to 4, characterized in that the sealing web (48) is rectangular or triangular in cross section.
. J ■ , J ■
6. Schaltvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Kunststoff masse (24) durch Umspritzen auftragbar ist und insbesondere aus einem thermoplastischen Kunststoffmaterial, beispielsweise aus einem Polyamidwerkstoff, besteht. 6. Switching device according to one of claims 1 to 5, characterized in that the plastic mass (24) can be applied by injection molding and in particular consists of a thermoplastic material, for example of a polyamide material.
EP02702302A 2001-02-03 2002-01-24 Sealed-off switchgear Expired - Lifetime EP1356480B1 (en)

Applications Claiming Priority (3)

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DE10104998A DE10104998A1 (en) 2001-02-03 2001-02-03 switching device
DE10104998 2001-02-03
PCT/EP2002/000677 WO2002063643A1 (en) 2001-02-03 2002-01-24 Sealed-off switchgear

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EP1356480A1 true EP1356480A1 (en) 2003-10-29
EP1356480B1 EP1356480B1 (en) 2008-02-27

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US (1) US7151427B2 (en)
EP (1) EP1356480B1 (en)
JP (1) JP2004518302A (en)
AT (1) ATE387717T1 (en)
DE (2) DE10104998A1 (en)
ES (1) ES2298345T3 (en)
WO (1) WO2002063643A1 (en)

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EP1356480B1 (en) 2008-02-27
ATE387717T1 (en) 2008-03-15
DE10104998A1 (en) 2002-08-22
US20040089833A1 (en) 2004-05-13
JP2004518302A (en) 2004-06-17
US7151427B2 (en) 2006-12-19
WO2002063643A1 (en) 2002-08-15
DE50211783D1 (en) 2008-04-10
ES2298345T3 (en) 2008-05-16

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