EP4013659A1 - Electric traction coupling and traction coupling having such an electric traction coupling - Google Patents

Electric traction coupling and traction coupling having such an electric traction coupling

Info

Publication number
EP4013659A1
EP4013659A1 EP20744007.4A EP20744007A EP4013659A1 EP 4013659 A1 EP4013659 A1 EP 4013659A1 EP 20744007 A EP20744007 A EP 20744007A EP 4013659 A1 EP4013659 A1 EP 4013659A1
Authority
EP
European Patent Office
Prior art keywords
contact element
coupling
electric
pull coupling
electric pull
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
EP20744007.4A
Other languages
German (de)
French (fr)
Other versions
EP4013659B1 (en
Inventor
Lukas Mann
Kay Uwe Kolshorn
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.)
Voith Patent GmbH
Original Assignee
Voith Patent 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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP4013659A1 publication Critical patent/EP4013659A1/en
Application granted granted Critical
Publication of EP4013659B1 publication Critical patent/EP4013659B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G5/00—Couplings for special purposes not otherwise provided for
    • B61G5/06—Couplings for special purposes not otherwise provided for for, or combined with, couplings or connectors for fluid conduits or electric cables
    • B61G5/10—Couplings for special purposes not otherwise provided for for, or combined with, couplings or connectors for fluid conduits or electric cables for electric cables

Definitions

  • the present invention relates to an electric pull coupling with two electric pull coupling halves which can be coupled to one another according to the preamble of claim 1. Furthermore, the present invention relates to a pulling coupling with such an electric pulling coupling.
  • Rail vehicles as it relates to the present invention in the broader sense, have, in addition to a mechanical coupling, an electrical coupling and usually an air coupling between the wagons to be coupled or coupled with one another, so that on the one hand mechanical tensile and compressive forces can be transmitted between the wagons and on the other hand, the car can be supplied with electrical power and in particular with compressed air.
  • the couplings accordingly have two coupling halves, with the mechanical coupling with coupling devices for the transmission of the tensile and compressive forces and with the electric pull coupling
  • Electric pull coupling plug contacts for establishing an electrically conductive connection between the electric pull coupling halves. It is important that the electrically conductive components are protected from undesired external contact, for example by an operator, not only in the coupled state but also in the uncoupled state. Such contact protection is conventionally achieved with a flap that covers the electrical plug-in contacts when the electrical pull coupling is disconnected and must be swiveled to the side when coupling. The flap also protects the area of the electrical plug contacts from dirt, dust and moisture.
  • the electric pull coupling halves can be provided in their own housing, as disclosed, for example, in EP 2 505 450 A1. Measures can be taken to prevent the connected to the housing Protective flap with the help of a simple mechanism relative to that
  • EP 1 741 611 B1 discloses a further electric pull coupling half in which, in the uncoupled state, a protective flap provides access to the
  • connection elements or contacts of the so-called cable coupling Covers connection elements or contacts of the so-called cable coupling.
  • the kinematic conditions when opening and closing the protective flap should be improved and a robust and reliable covering of the connection elements should be ensured.
  • EP 1 186 506 B1 discloses a coupling head for a rigid, automatic central buffer coupling of rail vehicles, with a coupling pocket being arranged between a large coupling claw and a small coupling claw, the cross section of which is adapted to the cross section of the small coupling claw, and the coupling pocket for guide surfaces that are parallel to one another Has guide surfaces of the small coupling claw as well as a coupling pocket bottom as an abutment for a support surface of the small coupling claw and an electric coupling is provided in the coupling head, which consists of a plug part and a socket part, the socket part in the small coupling claw or the large coupling claw and the plug part in the large coupling claw or small coupling claw is arranged, and wherein the socket part is fixed in the small or large coupling claw and the plug part is longitudinally movable and spring-loaded in the large or small NEN coupling claw is mounted.
  • the socket part can have one or more socket bodies in which sleeve-shaped socket contacts are formed which are covered by a seal that leaves open the socket contacts, the socket part has free spaces behind socket bodies for the absorption of dirt from the socket contacts and the plug contacts penetrate the socket contacts during coupling and push adhering dirt into the spaces provided.
  • a spring-loaded cover is mounted displaceably in the housing of the plug part and covers the air space in which the plug contacts are arranged via an elastic seal with cover access openings. During coupling, the cover presses the seal against the socket parts and compresses the air space so that the escaping air cleans the contact area of the coupling point from dirt.
  • the disadvantage of the known embodiments is that by providing the cover arranged on a housing as a cover element for the electrical contacts and by the kinematics required for the cover that moves the cover during coupling, the structural design of the electrical pulling coupling is complicated and there is also the risk of a Insufficient sealing against unwanted access from the outside and / or against the ingress of dust, dirt and moisture.
  • the present invention is based on the object of specifying an electric pull coupling with two electric pull coupling halves that can be coupled to one another, in which, on the one hand, reliable contact protection and in particular protection against the ingress of dust, dirt and moisture is provided and, on the other hand, a particularly simple and reliable kinematics of a corresponding Have cover and a simplified structural design.
  • An electric pull coupling according to the invention has two electric pull coupling halves which can be coupled to one another.
  • Each electric pull coupling half has at least one electrically conductive contact element which extends along an axial direction.
  • Each electric pull coupling half preferably has a multiplicity of corresponding electrically conductive contact elements which each extend along an axial direction and preferably parallel to one another.
  • Each electric pull coupling half has an electrically insulating housing which encloses the electrically conductive contact element or the electrically conductive contact elements of the corresponding electric pull coupling half. Furthermore, each electric pull coupling half has an electrically insulating cover, which is arranged to cover the end face of the electrically conductive contact element or the electrically conductive contact elements of the corresponding electric pull coupling half when the corresponding electric pull coupling half is in an uncoupled state.
  • the cover of each electric pull coupling half has at least one plug-in opening or a plurality of plug-in openings, the plug-in opening or the plug-in openings being aligned in the axial direction with the electrically conductive contact element or the electrically conductive contact elements of the respective electric pulling coupling half and each cover being displaceable in the axial direction between a decoupling position and a coupling position.
  • the electrically conductive contact element or the electrically conductive contact elements of the corresponding electric pulling coupling half are positioned in the axial direction inside the housing behind the plug-in opening or openings of the corresponding electric pulling coupling half.
  • the electrically conductive contact element In the coupling position, the electrically conductive contact element is or If the electrically conductive contact elements of the corresponding electric pulling coupling half penetrate the plug-in opening or the plug-in openings in the axial direction, they are positioned protruding from the housing through the cover.
  • the cover of one electric pulling coupling half can engage with the cover of the other electric pulling coupling half, so that the covers slide back each other in the direction of the contact element (s) of the corresponding electric pulling coupling half and the contact elements penetrate the cover and the contact elements of the two electric pull coupling halves are mutually connected.
  • a centering device with which the two housings are centered with respect to one another during the coupling process, can preferably be provided on the housing of both electric pull coupling halves.
  • the centering device is advantageously arranged in such a way that it already performs the centering function before the two covers come into mutual engagement.
  • the centering device preferably has at least one pin on one of the two housings and at least one bushing on the other of the two housings, the at least one pin and the at least one bushing engaging with one another when the electric pulling coupling halves are coupled.
  • a plurality of pins and / or sockets can advantageously be provided for each electric pull coupling half.
  • Each cover is preferably enclosed on at least two sides jointly by pins or sockets or jointly by at least one pin and at least one socket.
  • the contact elements have at least one first contact element, which is plate-shaped, and at least one second contact element, which is clip-shaped.
  • the Plate-shaped contact element has two electrical contact surfaces on sides facing away from one another and the clamp-shaped contact element has two electrical contact surfaces on sides facing one another.
  • the clamp-shaped contact element is preferably designed to be elastically resilient with regard to a movement apart of the two electrical contact surfaces. In this way, when a plate-shaped contact element is inserted into a clamp-shaped contact element, the two electrical contact surfaces of the clamp-shaped contact element can be pressed apart against an elastic resistance force and thus a reliable electrical contact can be achieved.
  • the first, plate-shaped contact element is preferably designed to be flat.
  • the second, clamp-shaped contact element preferably tapers in the direction of its axial end associated with the plate-shaped contact element during contacting.
  • the clamp-shaped contact element can have two legs, each of which forms an electrical contact surface.
  • the contact elements can also be designed with other shapes.
  • at least one first, plug-shaped contact element and at least one second, socket-shaped contact element can be provided, the first, plug-shaped contact element having an electrical contact surface on a radially outer circumference and the second, socket-shaped contact element having an electrical contact surface on a radially inner circumference.
  • each electrical pulling coupling half has at least one first contact element and at least one second contact element. According to one embodiment, they are accordingly a plurality of first and a plurality of second contact elements are provided in a common electric pull coupling half.
  • the other electrical pull coupling half accordingly preferably has opposite contact elements, that is to say, for example, one clip-shaped contact element for each plate-shaped contact element and one plate-shaped contact element for each clip-shaped contact element.
  • all contact elements of an electric pull coupling half are covered at the end by a common cover, at least in the uncoupled state of the corresponding electric pull coupling half.
  • the cover preferably comprises a rigid base body with at least one passage or with a plurality of passages.
  • the cover On the side facing away from the at least one contact element, the cover is covered with an elastic seal, which has an opening for each contact element of the corresponding electric pull coupling half, which is aligned in the axial direction with the corresponding contact element and one of the passages or part of the common passage in the base body is.
  • the openings form the plug-in openings together with the passages or the passage.
  • the openings are preferably slot-shaped.
  • a pull coupling according to the invention has two pull coupling halves, each of which comprises an end plate, one electric pull coupling half of the type shown being fastened to a respective end plate.
  • the electric pull coupling half or its housing can be arranged and / or fastened on an outer circumference of the end plate.
  • the electric pull coupling half is provided within the outer periphery of the faceplate.
  • the cover of an electric pull coupling half is preferably mounted elastically with respect to the remaining area of the housing by means of at least one compression spring.
  • the cover has at least one pin directed towards the interior of the housing, which is mounted displaceably in the axial direction within the housing and preferably comprises a stop that limits the sliding of the cover out of the remaining part of the housing.
  • the pin can, for example, have at its free end at least two elastically inwardly deflectable hooks so that it can be inserted into an opening in the remaining part of the housing in the manner of a snap connection and is mounted there so as to be slidable along a predetermined distance in the axial direction.
  • the contact elements of the respective electrical pull coupling half can, for example, each be held in a common contact carrier.
  • the contact elements are preferably secured against axial displacement in the contact carrier.
  • FIG. 1 shows a schematic view of an electric pull coupling according to the invention in the uncoupled state
  • FIG. 2 shows two associated contact elements of the electric pull coupling halves from FIG. 1 in the uncoupled state
  • FIG. 3 shows the two contact elements from FIG. 2 in the coupled state
  • FIG. 4 shows an exemplary representation of a pulling coupling with electric pulling couplings according to the invention.
  • the electric pull coupling 3 shown schematically in FIG. 1 has two electric pull coupling halves 8, 9 which can be coupled to one another.
  • Electric pull coupling half 8, 9 is provided with a housing 21, in the interior 22 of which a contact carrier 20 is arranged, which carries a plurality of electrically conductive contact elements 1, 2 secured in the axial direction X.
  • the interior 22 is closed by a cover 19, which is positioned at the end of the electrically conductive contact elements 1, 2.
  • the cover 19 is displaceable in the axial direction X in the direction of the contact elements 1, 2.
  • the cover 19 has pins 23 which are mounted displaceably in bores in the contact carrier 20.
  • a compression spring 24, which acts to extend the cover 19, is arranged on each of the pins 23. In the fully extended state of the cover 19 shown in FIG. 1, these are axially secured against falling out by flakes on the pins 23.
  • the pins 23 with the flakes also form a snap connection with the contact carrier 20, by means of which the cover 19 can easily be mounted in the contact carrier 20.
  • the two electric pull coupling halves 8, 9 are provided with a centering device 16, each comprising a pin 17 and a socket 18 on each
  • Electric pull coupling halves 8, 9, can be centered relative to one another.
  • Centering device 16 acts when the two move together
  • the covers 19 have plug-in openings 4 which, in the exemplary embodiment shown, are each formed by a common passage 6 in a rigid base body 5 of the cover 19 and one of a plurality of openings 15 in an elastic seal 7 covering the rigid base body 5 on the outside, which in particular from a synopsis of Figures 1 to 3 can be seen.
  • the elastic seal 7 advantageously also serves to seal the cover 19 with respect to the remaining part of the housing 21.
  • the first contact elements 1 are plate-shaped and have two electrical contact surfaces 1.1 on sides facing away from one another and running in the axial direction X.
  • the second contact elements 2 are clamp-shaped and have two mutually facing electrical contact surfaces 2.1 on an inner side of the contact element 2, the electrical contact surfaces 2.1 also extending in the axial direction X.
  • the housings 21 each have at their rear end, that is to say the end facing away from the cover 19, at least one connection 25 for a cable which is electrically conductive with the contact elements 1, 2 of the respective
  • connection 25 is preferably designed to be sealed or sealed against liquid in order to achieve IP protection, for example as a cable screw connection.
  • the screwed cable connection can be designed to be electrically insulating and the respective housing 21 can be made, for example, of metal, in particular steel.
  • the cover 19, that is to say its base body 5, can also be designed, for example, as a metal component, whereas the elastic seal 7 is electrically insulating.
  • the cable attached in connection 25 can be connected directly to contact elements 1, 2.
  • FIG. 4 shows a pulling coupling with two pulling coupling halves 10, 11, each of which has an end plate 12.
  • Each end plate 12 comprises a funnel 13 and a cone 14, which can be coupled to one another for mechanical locking of the two pull coupling halves 10, 11.
  • the train coupling is designed as an automatic central buffer coupling.
  • At least one electric pull coupling half 8, 9 is provided on each end plate 12.
  • the first end plate 12 carries two electric pull coupling halves 8 and the second end plate 12 carries two electric pull coupling halves 9.
  • first electric pull coupling half 8 forms with a second electric pull coupling half 9 an electric pull coupling of the type shown.
  • a first electric pull coupling half 8 forms with a second electric pull coupling half 9 an electric pull coupling of the type shown.
  • the housing 21 and the contact elements 1, 2 are shown in FIG. 4, without further details.
  • each electric pull coupling half 8, 9 has only similar contact elements 1, 2, with at least one electric pull coupling half 8, 9 with plugs and at least one electric pull coupling half 8, 9 with sockets being provided for each end plate 12. Notwithstanding, each electric pull coupling half 8, 9 could also have at least one plug and at least one socket.
  • the arrangement of plugs and / or sockets on an electric pull coupling half 8, 9 takes place in such a way that even with alternating arrangement of sockets and plugs, electric pull coupling halves of the same type can be coupled to one another.
  • This can be achieved, among other things, in that the same number of sockets and plugs is provided on an electric pulling coupling half and that they are arranged alternately individually or in groups.
  • a group comprises two or more similar elements - plugs or sockets.
  • FIGS. 1 to 3 an embodiment according to FIGS. 1 to 3 is preferably used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention relates to an electric traction coupling having two electric coupling halves which can be coupled to one another and which together and/or individually have a multiplicity of electrically conductive contact elements which each extend in an axial direction; wherein each electric traction coupling half comprises an electrically insulating housing which encompasses the electrically conductive contact element or elements and has an electrically insulating cover for covering the end face of the electrically conductive contact element or elements. The electric traction coupling according to the invention is characterized in that the cover of each of the two electric traction coupling halves has one or more plugging openings which are aligned with the electrically conductive contact element or elements in the axial direction and can be moved in the axial direction between an uncoupling position, in which the electrically conductive contact element or elements is/are positioned behind the plugging openings within the housing in the axial direction, and a coupling position, in which the electrically conductive contact element or elements is/are positioned so as to project out of the housing through the cover while passing through the plugging openings in the axial direction.

Description

Elektrozugkupplung und Zugkupplung mit einer solchen Elektrozugkupplung Electric pull coupling and pull coupling with such an electric pull coupling
Die vorliegende Erfindung betrifft eine Elektrozugkupplung mit zwei miteinander koppelbaren Elektrozugkupplungshälften gemäß dem Oberbegriff von Anspruch 1. Ferner betrifft die vorliegende Erfindung eine Zugkupplung mit einer solchen Elektrozugkupplung. The present invention relates to an electric pull coupling with two electric pull coupling halves which can be coupled to one another according to the preamble of claim 1. Furthermore, the present invention relates to a pulling coupling with such an electric pulling coupling.
Schienenfahrzeuge, wie sie die vorliegende Erfindung im weiteren Sinn betrifft, weisen neben einer mechanischen Kupplung auch eine Elektrokupplung und in der Regel eine Luftkupplung zwischen den miteinander zu kuppelnden oder gekuppelten Wagen auf, sodass zum einen mechanische Zug- und Druckkräfte zwischen den Wagen übertragen werden können und zum anderen die Wagen mit elektrischer Leistung und insbesondere mit Druckluft versorgt werden können. Die Kupplungen weisen entsprechend zwei Kupplungshälften auf, bei der mechanischen Kupplung mit Kuppeleinrichtungen zur Übertragung der Zug- und Druckkräfte und bei der Elektrozugkupplung mitRail vehicles, as it relates to the present invention in the broader sense, have, in addition to a mechanical coupling, an electrical coupling and usually an air coupling between the wagons to be coupled or coupled with one another, so that on the one hand mechanical tensile and compressive forces can be transmitted between the wagons and on the other hand, the car can be supplied with electrical power and in particular with compressed air. The couplings accordingly have two coupling halves, with the mechanical coupling with coupling devices for the transmission of the tensile and compressive forces and with the electric pull coupling
Elektrozugkupplungssteckkontakten zur Herstellung einer elektrisch leitenden Verbindung zwischen den Elektrozugkupplungshälften. Wichtig ist dabei, dass bei den Elektrozugkupplungen die elektrisch leitenden Bauteile nicht nur im gekuppelten Zustand sondern auch im ungekuppelten Zustand vor einem unerwünschten Kontakt von außen, beispielsweise durch eine Bedienperson, geschützt werden. Herkömmlich wird ein solcher Berührungsschutz mit einer Klappe erreicht, die im entkuppelten Zustand der Elektrozugkupplung die elektrischen Steckkontakte abdeckt und beim Kuppeln zur Seite verschwenkt werden muss. Die Klappe schützt ferner den Bereich der elektrischen Steckkontakte vor Schmutz, Staub und Feuchtigkeit. Electric pull coupling plug contacts for establishing an electrically conductive connection between the electric pull coupling halves. It is important that the electrically conductive components are protected from undesired external contact, for example by an operator, not only in the coupled state but also in the uncoupled state. Such contact protection is conventionally achieved with a flap that covers the electrical plug-in contacts when the electrical pull coupling is disconnected and must be swiveled to the side when coupling. The flap also protects the area of the electrical plug contacts from dirt, dust and moisture.
Die Elektrozugkupplungshälften können in einem eigenen Gehäuse vorgesehen sein, wie beispielsweise in EP 2 505 450 A1 offenbart wird. Dabei können Maßnahmen getroffen werden, um die am Gehäuse angeschlossene Schutzklappe mit Hilfe einer einfachen Mechanik relativ zu demThe electric pull coupling halves can be provided in their own housing, as disclosed, for example, in EP 2 505 450 A1. Measures can be taken to prevent the connected to the housing Protective flap with the help of a simple mechanism relative to that
Kupplungsgehäuse zu verschwenken, und gleichzeitig eine höhere Dichtheit gegenüber Staub und Feuchtigkeit zu erreichen. To pivot the clutch housing, and at the same time to achieve a higher level of tightness against dust and moisture.
Ein weiteres Ausführungsbeispiel einer Elektrozugkupplungshälfte mit verschwenkbarer Abdeckklappe wird in JP 2002-225705 A offenbart. Another embodiment of an electric pull coupling half with a pivotable cover flap is disclosed in JP 2002-225705 A.
EP 1 741 611 B1 offenbart eine weitere Elektrozugkupplungshälfte, bei welcher im ungekuppelten Zustand eine Schutzklappe den Zugang zu denEP 1 741 611 B1 discloses a further electric pull coupling half in which, in the uncoupled state, a protective flap provides access to the
Anschlusselementen beziehungsweise Kontakten der sogenannten Kabelkupplung abdeckt. Die kinematischen Verhältnisse beim Öffnen und Schließen der Schutzklappe sollen verbessert werden und eine robuste und zuverlässige Abdeckung der Anschlusselemente soll gewährleistet werden. Covers connection elements or contacts of the so-called cable coupling. The kinematic conditions when opening and closing the protective flap should be improved and a robust and reliable covering of the connection elements should be ensured.
EP 1 186 506 B1 offenbart einen Kupplungskopf für eine starre, automatische Mittelpufferkupplung von Schienenfahrzeugen, wobei zwischen einer großen Kupplungsklaue und einer kleinen Kupplungsklaue eine Kupplungstasche angeordnet ist, deren Querschnitt dem Querschnitt der kleinen Kupplungsklaue angepasst ist, und wobei die Kupplungstasche zueinander parallele Führungsflächen für zugeordnete Führungsflächen der kleinen Kupplungsklaue sowie einen Kupplungstaschenboden als Widerlager für eine Abstützfläche der kleinen Kupplungsklaue aufweist und in dem Kupplungskopf eine Elektrokupplung vorgesehen ist, die aus einem Steckerteil und aus einem Buchsenteil besteht, wobei das Buchsenteil in der kleinen Kupplungsklaue oder der großen Kupplungsklaue und das Steckerteil in der großen Kupplungsklaue oder kleinen Kupplungsklaue angeordnet ist, und wobei das Buchsenteil fest in der kleinen oder der großen Kupplungsklaue und das Steckerteil längsbeweglich und federbelastet in der großen oder der kleinen Kupplungsklaue gelagert ist. Das Buchsenteil kann einen oder mehrere Buchsenkörper aufweisen, in denen hülsenförmige Buchsenkontakte ausgebildet sind, die durch eine Einstecköffnungen zu den Buchsenkontakten freilassende Dichtung abgedeckt sind, wobei das Buchsenteil hinter Buchsenkörpern Freiräume für die Aufnahme von Verschmutzungen aus den Buchsenkontakten aufweist und die Steckerkontakte beim Kuppeln die Buchsenkontakte durchdringen und dabei anhaftenden Schmutz in die vorgesehenen Freiräume schieben. Es ist ein federbelasteter Deckel verschiebbar im Gehäuse des Steckerteils gelagert, der über eine elastische Dichtung mit Deckeldurchgriffsöffnungen den Luftraum abdeckt, in dem die Steckkontakte angeordnet sind. Beim Kuppeln drückt der Deckel die Dichtung abdichtend gegen Buchsenteile und komprimiert den Luftraum, sodass die entweichende Luft den Kontaktbereich der Kuppelstelle unterstützend von Schmutz säubert. EP 1 186 506 B1 discloses a coupling head for a rigid, automatic central buffer coupling of rail vehicles, with a coupling pocket being arranged between a large coupling claw and a small coupling claw, the cross section of which is adapted to the cross section of the small coupling claw, and the coupling pocket for guide surfaces that are parallel to one another Has guide surfaces of the small coupling claw as well as a coupling pocket bottom as an abutment for a support surface of the small coupling claw and an electric coupling is provided in the coupling head, which consists of a plug part and a socket part, the socket part in the small coupling claw or the large coupling claw and the plug part in the large coupling claw or small coupling claw is arranged, and wherein the socket part is fixed in the small or large coupling claw and the plug part is longitudinally movable and spring-loaded in the large or small NEN coupling claw is mounted. The socket part can have one or more socket bodies in which sleeve-shaped socket contacts are formed which are covered by a seal that leaves open the socket contacts, the socket part has free spaces behind socket bodies for the absorption of dirt from the socket contacts and the plug contacts penetrate the socket contacts during coupling and push adhering dirt into the spaces provided. A spring-loaded cover is mounted displaceably in the housing of the plug part and covers the air space in which the plug contacts are arranged via an elastic seal with cover access openings. During coupling, the cover presses the seal against the socket parts and compresses the air space so that the escaping air cleans the contact area of the coupling point from dirt.
Nachteilig an den bekannten Ausführungsformen ist, dass durch Vorsehen des an einem Gehäuse angeordneten Deckels als Abdeckelement für die elektrischen Kontakte und durch die für den Deckel notwendige Kinematik, die den Deckel beim Kuppeln bewegt, der konstruktive Aufbau der Elektrozugkupplung verkompliziert wird und zudem die Gefahr einer unzureichenden Abdichtung gegen einen unerwünschten Zugriff von außen und/oder gegen das Eindringen von Staub, Schmutz und Feuchtigkeit besteht. The disadvantage of the known embodiments is that by providing the cover arranged on a housing as a cover element for the electrical contacts and by the kinematics required for the cover that moves the cover during coupling, the structural design of the electrical pulling coupling is complicated and there is also the risk of a Insufficient sealing against unwanted access from the outside and / or against the ingress of dust, dirt and moisture.
Optische Koppler mit elastischen Dichtungen sind aus den Druckschriften US 4,411,491 und US 6,179,479 vorbekannt. Optical couplers with elastic seals are previously known from US 4,411,491 and US 6,179,479.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Elektrozugkupplung mit zwei miteinander kuppelbaren Elektrozugkupplungshälften anzugeben, bei welchen zum einen ein zuverlässiger Berührschutz und insbesondere Schutz vor dem Eindringen von Staub, Schmutz und Feuchtigkeit gegeben ist und die zum anderen eine besonders einfache und zuverlässige Kinematik eines entsprechenden Deckels und einen vereinfachten konstruktiven Aufbau aufweisen. The present invention is based on the object of specifying an electric pull coupling with two electric pull coupling halves that can be coupled to one another, in which, on the one hand, reliable contact protection and in particular protection against the ingress of dust, dirt and moisture is provided and, on the other hand, a particularly simple and reliable kinematics of a corresponding Have cover and a simplified structural design.
Die erfindungsgemäße Aufgabe wird durch eine Elektrozugkupplung mit den Merkmalen von Anspruch 1 gelöst. In den abhängigen Ansprüchen werden vorteilhafte und besonders zweckmäßige Ausgestaltungen der erfindungsgemäßen Elektrozugkupplung sowie eine Zugkupplung mit einer solchen Elektrozugkupplung angegeben. The object according to the invention is achieved by an electric pull coupling with the features of claim 1. In the dependent claims advantageous and particularly expedient embodiments of the electric pull coupling according to the invention and a pulling coupling with such an electric pull coupling.
Eine erfindungsgemäße Elektrozugkupplung weist zwei miteinander koppelbare Elektrozugkupplungshälften auf. Jede Elektrozugkupplungshälfte weist wenigstens ein elektrisch leitendes Kontaktelement auf, das sich entlang einer Axialrichtung erstreckt. Bevorzugt weist jede Elektrozugkupplungshälfte eine Vielzahl entsprechender elektrisch leitender Kontaktelemente auf, die sich jeweils entlang einer Axialrichtung und bevorzugt parallel zueinander erstrecken. An electric pull coupling according to the invention has two electric pull coupling halves which can be coupled to one another. Each electric pull coupling half has at least one electrically conductive contact element which extends along an axial direction. Each electric pull coupling half preferably has a multiplicity of corresponding electrically conductive contact elements which each extend along an axial direction and preferably parallel to one another.
Jede Elektrozugkupplungshälfte weist ein elektrisch isolierendes Gehäuse auf, das das elektrisch leitende Kontaktelement oder die elektrisch leitenden Kontaktelemente der entsprechenden Elektrozugkupplungshälfte umschließt. Ferner weist jede Elektrozugkupplungshälfte einen elektrisch isolierenden Deckel auf, der angeordnet ist, um das elektrisch leitende Kontaktelement oder die elektrisch leitenden Kontaktelemente der entsprechenden Elektrozugkupplungshälfte stirnseitig abzudecken, wenn sich die entsprechende Elektrozugkupplungshälfte in einem ungekuppelten Zustand befindet. Each electric pull coupling half has an electrically insulating housing which encloses the electrically conductive contact element or the electrically conductive contact elements of the corresponding electric pull coupling half. Furthermore, each electric pull coupling half has an electrically insulating cover, which is arranged to cover the end face of the electrically conductive contact element or the electrically conductive contact elements of the corresponding electric pull coupling half when the corresponding electric pull coupling half is in an uncoupled state.
Erfindungsgemäß weist der Deckel jeder Elektrozugkupplungshälfte wenigstens eine Stecköffnung oder eine Vielzahl von Stecköffnungen auf, wobei die Stecköffnung oder die Stecköffnungen in der Axialrichtung mit dem elektrisch leitenden Kontaktelement oder den elektrisch leitenden Kontaktelementen der jeweiligen Elektrozugkupplungshälfte ausgerichtet sind und wobei jeder Deckel in der Axialrichtung verschiebbar ist zwischen einer Entkuppelposition und einer Kuppelposition. In der Entkuppelposition ist das elektrisch leitende Kontaktelement oder sind die elektrisch leitenden Kontaktelemente der entsprechenden Elektrozugkupplungshälfte in der Axialrichtung innerhalb des Gehäuses hinter der oder den Stecköffnungen der entsprechenden Elektrozugkupplungshälfte positioniert. In der Kuppelposition ist das elektrisch leitende Kontaktelement oder sind die elektrisch leitenden Kontaktelemente der entsprechenden Elektrozugkupplungshälfte die Stecköffnung oder die Stecköffnungen in der Axialrichtung durchdringend, aus dem Gehäuse durch den Deckel herausragend positioniert. According to the invention, the cover of each electric pull coupling half has at least one plug-in opening or a plurality of plug-in openings, the plug-in opening or the plug-in openings being aligned in the axial direction with the electrically conductive contact element or the electrically conductive contact elements of the respective electric pulling coupling half and each cover being displaceable in the axial direction between a decoupling position and a coupling position. In the uncoupling position, the electrically conductive contact element or the electrically conductive contact elements of the corresponding electric pulling coupling half are positioned in the axial direction inside the housing behind the plug-in opening or openings of the corresponding electric pulling coupling half. In the coupling position, the electrically conductive contact element is or If the electrically conductive contact elements of the corresponding electric pulling coupling half penetrate the plug-in opening or the plug-in openings in the axial direction, they are positioned protruding from the housing through the cover.
Erfindungsgemäß kann damit beim Kuppelvorgang der Elektrozugkupplung, das heißt beim aufeinander zu Bewegen der beiden Elektrozugkupplungshälften, der Deckel der einen Elektrozugkupplungshälfte mit dem Deckel der anderen Elektrozugkupplungshälfte in Eingriff gelangen, sodass sich die Deckel gegenseitig jeweils in Richtung des oder der Kontaktelemente der entsprechenden Elektrozugkupplungshälfte zurückschieben und dabei die Kontaktelemente den Deckel durchdringen und es zu einer wechselseitigen elektrischen Kontaktierung der Kontaktelemente beider Elektrozugkupplungshälften kommt. According to the invention, during the coupling process of the electric pull coupling, that is, when the two electric pulling coupling halves are moved towards one another, the cover of one electric pulling coupling half can engage with the cover of the other electric pulling coupling half, so that the covers slide back each other in the direction of the contact element (s) of the corresponding electric pulling coupling half and the contact elements penetrate the cover and the contact elements of the two electric pull coupling halves are mutually connected.
Bevorzugt kann an dem Gehäuse beider Elektrozugkupplungshälften eine Zentriereinrichtung vorgesehen sein, mit welcher die beiden Gehäuse beim Kuppelvorgang zueinander zentriert werden. Die Zentriereinrichtung ist vorteilhaft derart angeordnet, dass sie die Zentrierfunktion bereits ausübt, bevor die beiden Deckel zum wechselseitigen Eingriff gelangen. Bevorzugt weist die Zentriereinrichtung wenigstens einen Stift an einem der beiden Gehäuse und wenigstens eine Buchse an dem anderen der beiden Gehäuse auf, wobei der wenigstens eine Stift und die wenigstens eine Buchse beim Kuppeln der Elektrozugkupplungshälften miteinander in Eingriff gelangen. Vorteilhaft können mehrere Stifte und/oder Buchsen je Elektrozugkupplungshälfte vorgesehen sein. Bevorzugt wird jeder Deckel auf wenigstens zwei Seiten gemeinsam von Stiften oder Buchsen oder gemeinsam von wenigstens einem Stift und wenigstens einer Buchse umschlossen. A centering device, with which the two housings are centered with respect to one another during the coupling process, can preferably be provided on the housing of both electric pull coupling halves. The centering device is advantageously arranged in such a way that it already performs the centering function before the two covers come into mutual engagement. The centering device preferably has at least one pin on one of the two housings and at least one bushing on the other of the two housings, the at least one pin and the at least one bushing engaging with one another when the electric pulling coupling halves are coupled. A plurality of pins and / or sockets can advantageously be provided for each electric pull coupling half. Each cover is preferably enclosed on at least two sides jointly by pins or sockets or jointly by at least one pin and at least one socket.
Gemäß einer besonders vorteilhaften Ausführungsform der Erfindung weisen die Kontaktelemente wenigstens ein erstes Kontaktelement auf, das plattenförmig ist, und wenigstens ein zweites Kontaktelement, das klammerförmig ist. Das plattenförmige Kontaktelement weist zwei elektrische Kontaktflächen auf voneinander abgewandten Seiten auf und das klammerförmige Kontaktelement weist zwei elektrische Kontaktflächen auf einander zugewandten Seiten auf. Bevorzugt ist das klammerförmige Kontaktelement hinsichtlich einer Auseinanderbewegung der beiden elektrischen Kontaktflächen elastisch federnd ausgebildet. Damit kann beim Einführen eines plattenförmigen Kontaktelementes in ein klammerförmiges Kontaktelement ein Auseinanderdrücken der beiden elektrischen Kontaktflächen des klammerförmigen Kontaktelementes gegen eine elastische Widerstandskraft und somit eine sichere elektrische Kontaktierung erreicht werden. According to a particularly advantageous embodiment of the invention, the contact elements have at least one first contact element, which is plate-shaped, and at least one second contact element, which is clip-shaped. The Plate-shaped contact element has two electrical contact surfaces on sides facing away from one another and the clamp-shaped contact element has two electrical contact surfaces on sides facing one another. The clamp-shaped contact element is preferably designed to be elastically resilient with regard to a movement apart of the two electrical contact surfaces. In this way, when a plate-shaped contact element is inserted into a clamp-shaped contact element, the two electrical contact surfaces of the clamp-shaped contact element can be pressed apart against an elastic resistance force and thus a reliable electrical contact can be achieved.
Das erste, plattenförmige Kontaktelement ist bevorzugt eben ausgeführt. Das zweite, klammerförmige Kontaktelement verjüngt sich bevorzugt in Richtung seines dem plattenförmigen Kontaktelement beim Kontaktieren zugeordneten axialen Endes. The first, plate-shaped contact element is preferably designed to be flat. The second, clamp-shaped contact element preferably tapers in the direction of its axial end associated with the plate-shaped contact element during contacting.
Gemäß einer Ausführungsform der Erfindung kann das klammerförmige Kontaktelement zwei Schenkel aufweisen, von denen jeder eine elektrische Kontaktfläche bildet. According to one embodiment of the invention, the clamp-shaped contact element can have two legs, each of which forms an electrical contact surface.
Die Kontaktelemente können auch mit anderen Formen ausgeführt werden. Beispielsweise kann wenigstens ein erstes, steckerförmiges Kontaktelement und wenigstens ein zweites, buchsenförmiges Kontaktelement vorgesehen sein, wobei das erste, steckerförmige Kontaktelement eine elektrische Kontaktfläche auf einem radial äußeren Umfang aufweist und das zweite, buchsenförmige Kontaktelement eine elektrische Kontaktfläche auf einem radial inneren Umfang aufweist. The contact elements can also be designed with other shapes. For example, at least one first, plug-shaped contact element and at least one second, socket-shaped contact element can be provided, the first, plug-shaped contact element having an electrical contact surface on a radially outer circumference and the second, socket-shaped contact element having an electrical contact surface on a radially inner circumference.
Gemäß einer Ausführungsform der Erfindung weist jede Elektrozugkupplungshälfte wenigstens ein erstes Kontaktelement und wenigstens ein zweites Kontaktelement auf. Gemäß einer Ausführungsform sind entsprechend mehrere erste und mehrere zweite Kontaktelemente in einer gemeinsamen Elektrozugkupplungshälfte vorgesehen. Die andere Elektrozugkupplungshälfte weist entsprechend bevorzugt gegengleiche Kontaktelemente auf, das heißt beispielsweise je plattenförmigem Kontaktelement ein klammerförmiges Kontaktelement und je klammerförmigem Kontaktelement ein plattenförmiges Kontaktelement. According to one embodiment of the invention, each electrical pulling coupling half has at least one first contact element and at least one second contact element. According to one embodiment, they are accordingly a plurality of first and a plurality of second contact elements are provided in a common electric pull coupling half. The other electrical pull coupling half accordingly preferably has opposite contact elements, that is to say, for example, one clip-shaped contact element for each plate-shaped contact element and one plate-shaped contact element for each clip-shaped contact element.
Gemäß einem Ausführungsbeispiel der Erfindung werden alle Kontaktelemente einer Elektrozugkupplungshälfte von einem gemeinsamen Deckel stirnseitig abgedeckt, zumindest im entkuppelten Zustand der entsprechenden Elektrozugkupplungshälfte. According to an exemplary embodiment of the invention, all contact elements of an electric pull coupling half are covered at the end by a common cover, at least in the uncoupled state of the corresponding electric pull coupling half.
Bevorzugt umfasst der Deckel einen starren Grundkörper mit wenigstens einem Durchlass oder mit einer Vielzahl von Durchlässen. Auf der von dem wenigstens einen Kontaktelement abgewandten Seite wird der Deckel mit einer elastischen Dichtung abgedeckt, die je Kontaktelement der entsprechenden Elektrozugkupplungshälfte einen Durchbruch aufweist, der in der Axialrichtung fluchtend zu dem entsprechenden Kontaktelement und einem der Durchlässe oder einem Teil des gemeinsamen Durchlasses im Grundkörper ausgerichtet ist. Die Durchbrüche bilden zusammen mit den Durchlässen oder dem Durchlass die Stecköffnungen aus. The cover preferably comprises a rigid base body with at least one passage or with a plurality of passages. On the side facing away from the at least one contact element, the cover is covered with an elastic seal, which has an opening for each contact element of the corresponding electric pull coupling half, which is aligned in the axial direction with the corresponding contact element and one of the passages or part of the common passage in the base body is. The openings form the plug-in openings together with the passages or the passage.
Die Durchbrüche sind bevorzugt schlitzförmig. The openings are preferably slot-shaped.
Beispielsweise ist im starren Grundkörper ein vergleichsweise großer gemeinsamer Durchlass vorgesehen, der entsprechend von der elastischen Dichtung abgedeckt wird, wobei die Durchbrüche in der elastischen Dichtung innerhalb des den Durchlass abdeckenden Bereiches der elastischen Dichtung vorgesehen sind. Eine erfindungsgemäße Zugkupplung weist zwei Zugkupplungshälften auf, die jeweils eine Stirnplatte umfassen, wobei jeweils eine Elektrozugkupplungshälfte der dargestellten Art an jeweils einer Stirnplatte befestigt ist. Insbesondere kann die Elektrozugkupplungshälfte beziehungsweise deren Gehäuse an einem äußeren Umfang der Stirnplatte angeordnet und/oder befestigt sein. Alternativ ist die Elektrozugkupplungshälfte innerhalb des äußeren Umfangs der Stirnplatte vorgesehen. For example, a comparatively large common passage is provided in the rigid base body, which is correspondingly covered by the elastic seal, the openings in the elastic seal being provided within the area of the elastic seal that covers the passage. A pull coupling according to the invention has two pull coupling halves, each of which comprises an end plate, one electric pull coupling half of the type shown being fastened to a respective end plate. In particular, the electric pull coupling half or its housing can be arranged and / or fastened on an outer circumference of the end plate. Alternatively, the electric pull coupling half is provided within the outer periphery of the faceplate.
Der Deckel einer Elektrozugkupplungshälfte ist bevorzugt mittels wenigstens einer Druckfeder elastisch gegenüber dem verbleibenden Bereich des Gehäuses gelagert. The cover of an electric pull coupling half is preferably mounted elastically with respect to the remaining area of the housing by means of at least one compression spring.
Beispielsweise weist der Deckel wenigstens einen in Richtung des Inneren des Gehäuses gerichteten Zapfen auf, der innerhalb des Gehäuses in der Axialrichtung verschiebbar gelagert ist und bevorzugt einen Anschlag umfasst, der das Herausschieben des Deckels aus dem verbleibenden Teil des Gehäuses begrenzt. Der Zapfen kann zum Beispiel an seinem freien Ende wenigstens zwei elastisch nach innen aufeinander zu einfederbare Haken aufweisen, sodass er nach Art einer Schnappverbindung entsprechend in eine Öffnung des verbleibenden Teils des Gehäuses einsetzbar ist und dort gleitbar entlang einer vorgegebenen Strecke in der Axialrichtung gelagert wird. For example, the cover has at least one pin directed towards the interior of the housing, which is mounted displaceably in the axial direction within the housing and preferably comprises a stop that limits the sliding of the cover out of the remaining part of the housing. The pin can, for example, have at its free end at least two elastically inwardly deflectable hooks so that it can be inserted into an opening in the remaining part of the housing in the manner of a snap connection and is mounted there so as to be slidable along a predetermined distance in the axial direction.
Die Kontaktelemente der jeweiligen Elektrozugkupplungshälfte können zum Beispiel jeweils in einem gemeinsamen Kontaktträger gehalten werden. Bevorzugt sind die Kontaktelemente gegen axiales Verschieben in dem Kontaktträger gesichert. The contact elements of the respective electrical pull coupling half can, for example, each be held in a common contact carrier. The contact elements are preferably secured against axial displacement in the contact carrier.
Die Erfindung soll nachfolgend anhand eines Ausführungsbeispiels und den Figuren exemplarisch beschrieben werden. The invention is to be described below using an exemplary embodiment and the figures.
Es zeigen: Figur 1 eine schematische Ansicht einer erfindungsgemäßen Elektrozugkupplung im entkuppelten Zustand; Show it: FIG. 1 shows a schematic view of an electric pull coupling according to the invention in the uncoupled state;
Figur 2 zwei einander zugeordnete Kontaktelemente der Elektrozugkupplungshälften aus der Figur 1 im entkuppelten Zustand; FIG. 2 shows two associated contact elements of the electric pull coupling halves from FIG. 1 in the uncoupled state;
Figur 3 die beiden Kontaktelemente aus der Figur 2 im gekuppelten Zustand; FIG. 3 shows the two contact elements from FIG. 2 in the coupled state;
Figur 4 eine exemplarische Darstellung einer Zugkupplung mit erfindungsgemäßen Elektrozugkupplungen. FIG. 4 shows an exemplary representation of a pulling coupling with electric pulling couplings according to the invention.
Die in der Figur 1 schematisch dargestellte Elektrozugkupplung 3 weist zwei miteinander kuppelbare Elektrozugkupplungshälften 8, 9 auf. JedeThe electric pull coupling 3 shown schematically in FIG. 1 has two electric pull coupling halves 8, 9 which can be coupled to one another. Each
Elektrozugkupplungshälfte 8, 9 ist mit einem Gehäuse 21 versehen, in dessen Innenraum 22 ein Kontaktträger 20 angeordnet ist, der eine Vielzahl von elektrisch leitenden Kontaktelementen 1 , 2 in der Axialrichtung X gesichert trägt. Electric pull coupling half 8, 9 is provided with a housing 21, in the interior 22 of which a contact carrier 20 is arranged, which carries a plurality of electrically conductive contact elements 1, 2 secured in the axial direction X.
Der Innenraum 22 wird durch einen Deckel 19 verschlossen, der stirnseitig zu den elektrisch leitenden Kontaktelementen 1, 2 positioniert ist. Der Deckel 19 ist in der Axialrichtung X verschiebbar in Richtung der Kontaktelemente 1, 2. Hierfür weist der Deckel 19 Zapfen 23 auf, die in Bohrungen des Kontaktträgers 20 verschiebbar gelagert sind. Auf den Zapfen 23 ist jeweils eine Druckfeder 24 angeordnet, die im Sinne eines Ausfahrens des Deckels 19 wirkt. Im in der Figur 1 gezeigten vollständig ausgefahrenen Zustand der Deckel 19 sind diese axial durch Flaken an den Zapfen 23 gegen Fierausfallen gesichert. Die Zapfen 23 mit den Flaken bilden zudem mit dem Kontaktträger 20 eine Schnappverbindung, mittels welcher der Deckel 19 leicht im Kontaktträger 20 montierbar ist. Die beiden Elektrozugkupplungshälften 8, 9 sind mit einer Zentriereinrichtung 16, umfassend jeweils einen Stift 17 und eine Buchse 18 an jederThe interior 22 is closed by a cover 19, which is positioned at the end of the electrically conductive contact elements 1, 2. The cover 19 is displaceable in the axial direction X in the direction of the contact elements 1, 2. For this purpose, the cover 19 has pins 23 which are mounted displaceably in bores in the contact carrier 20. A compression spring 24, which acts to extend the cover 19, is arranged on each of the pins 23. In the fully extended state of the cover 19 shown in FIG. 1, these are axially secured against falling out by flakes on the pins 23. The pins 23 with the flakes also form a snap connection with the contact carrier 20, by means of which the cover 19 can easily be mounted in the contact carrier 20. The two electric pull coupling halves 8, 9 are provided with a centering device 16, each comprising a pin 17 and a socket 18 on each
Elektrozugkupplungshälfte 8, 9, relativ zueinander zentrierbar. DieElectric pull coupling halves 8, 9, can be centered relative to one another. The
Zentriereinrichtung 16 wirkt beim Zusammenfahren der beidenCentering device 16 acts when the two move together
Elektrozugkupplungshälften 8, 9 in der Axialrichtung X, bevor die beiden Deckel 19 in Kontakt miteinander gelangen. Elektrozugkupplungshälften 8, 9 in the axial direction X before the two covers 19 come into contact with each other.
Die Deckel 19 weisen Stecköffnungen 4 auf, die im gezeigten Ausführungsbeispiel jeweils durch einen gemeinsamen Durchlass 6 in einem starren Grundkörper 5 des Deckels 19 und einem von einer Vielzahl von Durchbrüchen 15 in einer den starren Grundkörper 5 außen abdeckenden elastischen Dichtung 7 gebildet werden, was insbesondere aus einer Zusammenschau der Figuren 1 bis 3 ersichtlich ist. Die elastische Dichtung 7 dient vorteilhaft auch der Abdichtung des Deckels 19 gegenüber dem verbleibenden Teil des Gehäuses 21. The covers 19 have plug-in openings 4 which, in the exemplary embodiment shown, are each formed by a common passage 6 in a rigid base body 5 of the cover 19 and one of a plurality of openings 15 in an elastic seal 7 covering the rigid base body 5 on the outside, which in particular from a synopsis of Figures 1 to 3 can be seen. The elastic seal 7 advantageously also serves to seal the cover 19 with respect to the remaining part of the housing 21.
Die ersten Kontaktelemente 1 sind plattenförmig und weisen zwei elektrische Kontaktflächen 1.1 auf in Axialrichtung X verlaufenden, aufeinander abgewandten Seiten auf. Die zweiten Kontaktelemente 2 sind klammerförmig und weisen zwei einander zugewandte elektrische Kontaktflächen 2.1 auf einer Innenseite des Kontaktelementes 2 auf, wobei die elektrischen Kontaktflächen 2.1 sich ebenfalls in der Axialrichtung X erstrecken. The first contact elements 1 are plate-shaped and have two electrical contact surfaces 1.1 on sides facing away from one another and running in the axial direction X. The second contact elements 2 are clamp-shaped and have two mutually facing electrical contact surfaces 2.1 on an inner side of the contact element 2, the electrical contact surfaces 2.1 also extending in the axial direction X.
Wie man aus einem Vergleich der Figuren 2 und 3 erkennen kann, wird beim Kuppeln der beiden Elektrozugkupplungshälften 8, 9 jeder der beiden Deckel 19 durch wechselseitige Kontaktierung soweit in Richtung des Innenraumes 22 des Gehäuses 21 (siehe die Figur 1) zurückgeschoben, dass die jeweiligen Kontaktelemente 1 , 2 beider Elektrozugkupplungshälften 8, 9 die Stecköffnungen 4, hier die Durchlässe 6 und die Durchbrüche 15, durchdringen und mit einem entsprechend gegengleichen Kontaktelement 1, 2 der jeweils anderenAs can be seen from a comparison of Figures 2 and 3, when coupling the two electric pull coupling halves 8, 9, each of the two covers 19 is pushed back by mutual contact in the direction of the interior 22 of the housing 21 (see Figure 1) so far that the respective Contact elements 1, 2 of both electric pull coupling halves 8, 9 penetrate the plug-in openings 4, here the passages 6 and the openings 15, and with a correspondingly opposite contact element 1, 2 of the other
Elektrozugkupplungshälfte 8, 9 zur elektrischen Kontaktierung in Eingriff gelangen. Beim Entkuppeln hingegen schieben die Druckfedern 24 die Deckel 19 zurück in die in der Figur 1 gezeigte maximal ausgefahrene Ausgangsposition, sodass die Kontaktelemente 1, 2 wieder sicher innerhalb des Gehäuses 21 geschützt werden. Electric pull coupling halves 8, 9 come into engagement for electrical contacting. When uncoupling, on the other hand, the compression springs 24 push the cover 19 back into the maximally extended starting position shown in FIG. 1, so that the contact elements 1, 2 are again safely protected within the housing 21.
Die Gehäuse 21 weisen an ihrem hinteren Ende, das heißt dem Deckel 19 abgewandten Ende, jeweils wenigstens einen Anschluss 25 für ein Kabel auf, das elektrisch leitend mit den Kontaktelementen 1, 2 der jeweiligenThe housings 21 each have at their rear end, that is to say the end facing away from the cover 19, at least one connection 25 for a cable which is electrically conductive with the contact elements 1, 2 of the respective
Elektrozugkupplungshälfte 8, 9 verbunden ist. Der Anschluss 25 ist bevorzugt gegen Flüssigkeit abgedichtet oder abdichtend ausgeführt, um einen IP-Schutz zu erreichen, beispielsweise als Kabelverschraubung. Die Kabelverschraubung kann elektrisch isolierend ausgeführt sein und das jeweilige Gehäuse 21 kann zum Beispiel aus Metall, insbesondere aus Stahl, hergestellt sein. Auch der Deckel 19, das heißt dessen Grundkörper 5, kann zum Beispiel als Metallbauteil ausgeführt sein, die elastische Dichtung 7 hingegen ist elektrisch isolierend. Das im Anschluss 25 befestigte Kabel kann direkt mit den Kontaktelementen 1, 2 verbunden werden. Electric pull coupling half 8, 9 is connected. The connection 25 is preferably designed to be sealed or sealed against liquid in order to achieve IP protection, for example as a cable screw connection. The screwed cable connection can be designed to be electrically insulating and the respective housing 21 can be made, for example, of metal, in particular steel. The cover 19, that is to say its base body 5, can also be designed, for example, as a metal component, whereas the elastic seal 7 is electrically insulating. The cable attached in connection 25 can be connected directly to contact elements 1, 2.
In der Figur 4 ist eine Zugkupplung mit zwei Zugkupplungshälften 10, 11 gezeigt, die jeweils eine Stirnplatte 12 aufweisen. Jede Stirnplatte 12 umfasst einen Trichter 13 und einen Kegel 14, die miteinander für eine mechanische Verriegelung der beiden Zugkupplungshälften 10, 11 gekuppelt werden können. Beispielsweise ist die Zugkupplung als automatische Mittelpufferkupplung ausgeführt. FIG. 4 shows a pulling coupling with two pulling coupling halves 10, 11, each of which has an end plate 12. Each end plate 12 comprises a funnel 13 and a cone 14, which can be coupled to one another for mechanical locking of the two pull coupling halves 10, 11. For example, the train coupling is designed as an automatic central buffer coupling.
An jeder Stirnplatte 12 ist wenigstens eine Elektrozugkupplungshälfte 8, 9 vorgesehen. Im gezeigten Ausführungsbeispiel trägt die erste Stirnplatte 12 zwei Elektrozugkupplungshälften 8 und die zweite Stirnplatte 12 trägt zwei Elektrozugkupplungshälften 9. At least one electric pull coupling half 8, 9 is provided on each end plate 12. In the exemplary embodiment shown, the first end plate 12 carries two electric pull coupling halves 8 and the second end plate 12 carries two electric pull coupling halves 9.
Jeweils eine erste Elektrozugkupplungshälfte 8 bildet mit einer zweiten Elektrozugkupplungshälfte 9 eine Elektrozugkupplung der dargestellten Art. Exemplarisch sind in der Figur 4 jedoch nur das Gehäuse 21 und die Kontaktelemente 1 , 2 gezeigt, ohne weitere Details. In each case a first electric pull coupling half 8 forms with a second electric pull coupling half 9 an electric pull coupling of the type shown. As an example, however, only the housing 21 and the contact elements 1, 2 are shown in FIG. 4, without further details.
Abweichend von der Darstellung in den Figuren 1 bis 3 wird angedeutet, dass die elektrischen Kontaktelemente 1 , 2 auch als Buchse und Stecker ausgeführt sein könnten. Im gezeigten Ausführungsbeispiel, jedoch nicht zwingend, weist jede Elektrozugkupplungshälfte 8, 9 nur gleichartige Kontaktelemente 1 , 2 auf, wobei je Stirnplatte 12 wenigstens eine Elektrozugkupplungshälfte 8, 9 mit Steckern und wenigstens eine Elektrozugkupplungshälfte 8, 9 mit Buchsen vorgesehen ist. Abweichend könnte auch jede Elektrozugkupplungshälfte 8, 9 wenigstens einen Stecker und wenigstens eine Buchse aufweisen. In a departure from the illustration in FIGS. 1 to 3, it is indicated that the electrical contact elements 1, 2 could also be designed as a socket and plug. In the illustrated embodiment, but not mandatory, each electric pull coupling half 8, 9 has only similar contact elements 1, 2, with at least one electric pull coupling half 8, 9 with plugs and at least one electric pull coupling half 8, 9 with sockets being provided for each end plate 12. Notwithstanding, each electric pull coupling half 8, 9 could also have at least one plug and at least one socket.
Die Anordnung von Stecker und/oder Buchsen an einer Elektrozugkupplungshälfte 8, 9 erfolgt derart, dass auch bei wechselweiser Anordnung von Buchsen und Steckern Elektrozugkupplungshälften gleichen Typs miteinander gekuppelt werden können. Dies kann unter anderem dadurch erreicht werden, dass jeweils die gleiche Anzahl an Buchsen und Steckern an einer Elektrozugkupplungshälfte vorgesehen ist und deren Anordnung einzeln oder in Gruppen wechselweise erfolgt. Eine Gruppe umfasst dabei zwei oder mehrere gleichartige Elemente - Stecker oder Buchsen. The arrangement of plugs and / or sockets on an electric pull coupling half 8, 9 takes place in such a way that even with alternating arrangement of sockets and plugs, electric pull coupling halves of the same type can be coupled to one another. This can be achieved, among other things, in that the same number of sockets and plugs is provided on an electric pulling coupling half and that they are arranged alternately individually or in groups. A group comprises two or more similar elements - plugs or sockets.
Bevorzugt kommt jedoch eine Ausgestaltung gemäß den Figuren 1 bis 3 zum Einsatz. However, an embodiment according to FIGS. 1 to 3 is preferably used.
Bezugszeichenliste List of reference symbols
1 elektrisch leitendes Kontaktelement1 electrically conductive contact element
1.1 elektrische Kontaktfläche 1.1 electrical contact surface
2 elektrisch leitendes Kontaktelement2 electrically conductive contact element
2.1 elektrische Kontaktfläche 2.1 electrical contact surface
3 Elektrokupplung 3 electric coupling
4 Stecköffnung 4 plug-in opening
5 Grundkörper 5 base bodies
6 Durchlass 6 passage
7 elastische Dichtung 7 elastic seal
8 Elektrozugkupplungshälfte 8 Electric pull coupling half
9 Elektrozugkupplungshälfte 9 Electric pull coupling half
10 Zugkupplungshälfte 11 Zugkupplungshälfte 12 Stirnplatte 10 Towing coupling half 11 Towing coupling half 12 Front plate
13 Trichter 13 funnel
14 Kegel 14 cones
15 Durchbruch 15 breakthrough
16 Zentriereinrichtung 16 Centering device
17 Stift 17 pin
18 Buchse 18 socket
19 Deckel 19 lid
20 Kontaktträger 21 Gehäuse 22 Innenraum 20 contact carrier 21 housing 22 interior
23 Zapfen 23 tenons
24 Druckfeder 24 compression spring
25 Anschluss X Axialrichtung 25 Port X axial direction

Claims

Patentansprüche Claims
1. Elektrozugkupplung (3) mit zwei miteinander kuppelbaren Elektrozugkupplungshälften (8, 9), die gemeinsam und/oder jeweils eine Vielzahl von sich jeweils entlang einer Axialrichtung (X) erstreckenden, elektrisch leitenden Kontaktelementen (1 , 2) aufweisen; wobei jede Elektrozugkupplungshälfte (8, 9) ein elektrisch isolierendes Gehäuse (21) umfasst, das das oder die elektrisch leitenden Kontaktelemente (1, 2) umschließt und einen elektrisch isolierenden Deckel (19) zur stirnseitigen Abdeckung des oder der elektrisch leitenden Kontaktelemente (1, 2) aufweist; dadurch gekennzeichnet, dass der Deckel (19) beider Elektrozugkupplungshälften (8, 9) jeweils eine oder mehrere Stecköffnungen (4) aufweist, die in der Axialrichtung (X) mit dem oder den elektrisch leitenden Kontaktelementen (1, 2) ausgerichtet sind, und in der Axialrichtung (X) verschiebbar ist zwischen einer Entkuppelposition, in der das oder die elektrisch leitenden Kontaktelemente (1, 2) in der Axialrichtung (X) innerhalb des Gehäuses (21) hinter den Stecköffnungen (4) positioniert ist/sind, und einer Kuppelposition, in der das oder die elektrisch leitenden Kontaktelemente (1, 2) die Stecköffnungen (4) in der Axialrichtung (X) durchdringend, aus dem Gehäuse (21) durch den Deckel (19) herausragend positioniert sind. 1. Electric pull coupling (3) with two electric pull coupling halves (8, 9) which can be coupled to one another and which together and / or each have a plurality of electrically conductive contact elements (1, 2) each extending along an axial direction (X); each electric pull coupling half (8, 9) comprising an electrically insulating housing (21) which encloses the electrically conductive contact element (s) (1, 2) and an electrically insulating cover (19) for covering the end face of the electrically conductive contact element (s) (1, 2) has; characterized in that the cover (19) of both electric pull coupling halves (8, 9) each has one or more plug-in openings (4) which are aligned in the axial direction (X) with the electrically conductive contact element (s) (1, 2), and in in the axial direction (X) between a decoupling position, in which the electrically conductive contact element (s) (1, 2) is / are positioned in the axial direction (X) inside the housing (21) behind the plug-in openings (4), and a coupling position , in which the electrically conductive contact element (s) (1, 2) penetrating the plug-in openings (4) in the axial direction (X) and protruding from the housing (21) through the cover (19) are positioned.
2. Elektrozugkupplung (3) gemäß Anspruch 1, dadurch gekennzeichnet, dass die Kontaktelemente (1, 2) wenigstens ein erstes, plattenförmiges Kontaktelement (1) und wenigstens ein zweites, klammerförmiges Kontaktelement (2) umfassen, wobei das erste, plattenförmige2. Electrical pull coupling (3) according to claim 1, characterized in that the contact elements (1, 2) comprise at least one first, plate-shaped contact element (1) and at least one second, clamp-shaped contact element (2), the first, plate-shaped
Kontaktelement (1) zwei elektrische Kontaktflächen (1.1) auf voneinander abgewandten Seiten aufweist und das zweite, klammerförmige Kontaktelement (2) zwei elektrische Kontaktflächen (2.1) auf einander zugewandten Seiten aufweist. Contact element (1) has two electrical contact surfaces (1.1) on sides facing away from one another and the second, clamp-shaped contact element (2) has two electrical contact surfaces (2.1) on sides facing one another.
3. Elektrozugkupplung (3) gemäß Anspruch 1 , dadurch gekennzeichnet, dass die Kontaktelemente (1, 2) wenigstens ein erstes, steckerförmiges Kontaktelement (1) und wenigstens ein zweites, buchsenförmiges Kontaktelement (2) umfassen, wobei das erste, steckerförmige3. Electrical pull coupling (3) according to claim 1, characterized in that the contact elements (1, 2) comprise at least one first, plug-shaped contact element (1) and at least one second, socket-shaped contact element (2), the first being plug-shaped
Kontaktelement (1) eine elektrische Kontaktfläche (1.1) auf einem radial äußeren Umfang aufweist und das zweite, buchsenartige Kontaktelement (2) eine elektrische Kontaktfläche (2.1) auf einem radial inneren Umfang aufweist. Contact element (1) has an electrical contact surface (1.1) on a radially outer circumference and the second, socket-like contact element (2) has an electrical contact surface (2.1) on a radially inner circumference.
4. Elektrozugkupplung (3) gemäß einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass jede Elektrozugkupplungshälfte (8, 9) wenigstens ein oder mehrere erste Kontaktelemente (1) und wenigstens ein oder mehrere zweite Kontaktelemente (2) aufweist. 4. Electric pull coupling (3) according to one of claims 2 or 3, characterized in that each electric pull coupling half (8, 9) has at least one or more first contact elements (1) and at least one or more second contact elements (2).
5. Elektrozugkupplung (3) gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass alle Kontaktelemente (1, 2) einer5. Electric pull coupling (3) according to one of claims 1 to 4, characterized in that all contact elements (1, 2) one
Elektrozugkupplungshälfte (8, 9) von einem gemeinsamen Deckel (19) stirnseitig abgedeckt werden. Electric pull coupling halves (8, 9) are covered on the front side by a common cover (19).
6. Elektrozugkupplung (3) gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Deckel (19) einen starren Grundkörper (5) mit wenigstens einem Durchlass (6) umfasst und auf der von dem wenigstens einen Kontaktelement (1, 2) abgewandten Seite mit einer elastischen Dichtung (7) abgedeckt ist, die je Kontaktelement (1, 2) einen Durchbruch (15) aufweist, der in der Axialrichtung (X) fluchtend zu dem entsprechenden Kontaktelement (1, 2) und dem Durchlass (6) oder einem Teil des Durchlasses (6) ausgerichtet ist, sodass der Durchbruch (15) und der Durchlass (6) gemeinsam eine Stecköffnung (4) ausbilden. 6. Electric pull coupling (3) according to one of claims 1 to 5, characterized in that the cover (19) comprises a rigid base body (5) with at least one passage (6) and on which of the at least one contact element (1, 2) remote side is covered with an elastic seal (7), which has an opening (15) for each contact element (1, 2), which in the axial direction (X) is aligned with the corresponding contact element (1, 2) and the passage (6) or a part of the passage (6) is aligned so that the opening (15) and the passage (6) together form a plug-in opening (4).
7. Elektrozugkupplung (3) gemäß Anspruch 6, dadurch gekennzeichnet, dass die Durchbrüche (15) schlitzförmig sind. 7. Electric pull coupling (3) according to claim 6, characterized in that the openings (15) are slot-shaped.
8. Elektrozugkupplung (3) gemäß einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Gehäuse (21) beider Elektrozugkupplungshälften (8, 9) mit einer Zentriereinrichtung (16) versehen sind, umfassend wenigstens einen Stift (17) an einem der beiden Gehäuse (21) und eine Buchse (18) an dem anderen der beiden Gehäuse (21), die beim Kuppeln der Elektrozugkupplungshälften (8, 9) miteinander in Eingriff bringbar sind. 8. electric pull coupling (3) according to any one of claims 1 to 7, characterized in that the housings (21) of both electric pulling coupling halves (8, 9) are provided with a centering device (16) comprising at least one pin (17) on one of the two Housing (21) and a bushing (18) on the other of the two housings (21), which can be brought into engagement with one another when the electric pull coupling halves (8, 9) are coupled.
9. Elektrozugkupplung (3) gemäß Anspruch 8, dadurch gekennzeichnet, dass der Stift (17) und/oder die Buchse (18) in der Axialrichtung (X) gegenüber dem Deckel (21) auf der von dem wenigstens einen Kontaktelement (1, 2) abgewandten Seite übersteht, sodass beim Kuppeln der Elektrozugkupplungshälften (8, 9) zunächst der Stift (17) und die Buchse (18) in einen wechselseitigen Eingriff gelangen und anschließend die Deckel (21) beider Zugkupplungshälften (8, 9) in einen wechselseitigen Eingriff gelangen. 9. Electrical pull coupling (3) according to claim 8, characterized in that the pin (17) and / or the socket (18) in the axial direction (X) opposite the cover (21) on the of the at least one contact element (1, 2 ) protrudes away from the side, so that when the electric pull coupling halves (8, 9) are coupled, the pin (17) and the socket (18) first engage in mutual engagement and then the covers (21) of both pull coupling halves (8, 9) engage in mutual engagement reach.
10. Zugkupplung mit zwei Zugkupplungshälften (10, 11), die jeweils eine Stirnplatte (12) aufweisen, gekennzeichnet durch eine Elektrozugkupplung (3) gemäß einem der Ansprüche 1 bis 9, wobei jeweils eine Elektrozugkupplungshälfte (8, 9) an jeweils einer Stirnplatte (12) befestigt ist. 10. Drawbar coupling with two drawbar coupling halves (10, 11), each having an end plate (12), characterized by an electric tensile coupling (3) according to one of claims 1 to 9, wherein in each case one electric tensile coupling half (8, 9) is attached to a respective end plate ( 12) is attached.
EP20744007.4A 2019-08-15 2020-07-17 Electric traction coupling and traction coupling having such an electric traction coupling Active EP4013659B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019121975.2A DE102019121975A1 (en) 2019-08-15 2019-08-15 Electric pull coupling and pull coupling with such an electric pull coupling
PCT/EP2020/070301 WO2021028150A1 (en) 2019-08-15 2020-07-17 Electric traction coupling and traction coupling having such an electric traction coupling

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EP4013659A1 true EP4013659A1 (en) 2022-06-22
EP4013659B1 EP4013659B1 (en) 2023-06-07

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CN (1) CN114245780B (en)
DE (1) DE102019121975A1 (en)
WO (1) WO2021028150A1 (en)

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DE102020117289A1 (en) 2020-07-01 2022-01-05 Voith Patent Gmbh Electrical contact coupling and central buffer coupling for a rail vehicle

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CN114245780B (en) 2024-05-14
WO2021028150A1 (en) 2021-02-18
DE102019121975A1 (en) 2021-02-18
CN114245780A (en) 2022-03-25
EP4013659B1 (en) 2023-06-07

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