EP4507946A1 - Elektrokontaktkupplung und mittelpufferkupplung für ein schienenfahrzeug - Google Patents
Elektrokontaktkupplung und mittelpufferkupplung für ein schienenfahrzeugInfo
- Publication number
- EP4507946A1 EP4507946A1 EP23717469.3A EP23717469A EP4507946A1 EP 4507946 A1 EP4507946 A1 EP 4507946A1 EP 23717469 A EP23717469 A EP 23717469A EP 4507946 A1 EP4507946 A1 EP 4507946A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupling
- protective flap
- contact
- electrical contact
- contact carrier
- 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.)
- Withdrawn
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 electrical contact coupling for a rail vehicle center buffer coupling, as well as a center buffer coupling for a rail vehicle with such an electrical contact coupling.
- Conventional electrical contact couplings for central buffer couplings of a rail vehicle are usually arranged adjacent to a mechanical contact coupling of the central buffer coupling.
- the mechanical contact coupling for example the Scharfenberg coupling
- two rail vehicles can be mechanically coupled to one another, so that tensile and compressive forces are transmitted between the two rail vehicles via the mechanical contact coupling.
- the electrical contact couplings serve to electrically connect the on-board electrical system of the two rail vehicles and, if necessary, to electrically couple signal lines of both rail vehicles.
- the associated electrical contact couplings are also mechanically and electrically coupled to one another, usually at the same time.
- the electrical contact couplings have a protective flap which is adjustable between a covering position in which it covers the electrical contacts and a release position in which it releases the electrical contacts.
- Protective flaps are known which open automatically in that when the rail vehicles are coupled, the protective flaps of the mutually identical electrical contact couplings are moved against one another and, due to the design of the mutually facing front sides of the protective flaps, a torque is exerted on the protective flaps, so that the protective flaps each can be pivoted about an axis of rotation from its covering position into its release position.
- Such an electrical contact coupling is disclosed, for example, in WO 2021/110660 A1 and in DE 811 360 A.
- electrical contact couplings with protective flaps are known, which are pivoted via a drive of the electrical contact coupling when the central buffer couplings to be coupled to one another move towards one another.
- Such electrical contact couplings also have a longitudinally displaceable contact carrier, which comprises electrical contacts aligned on the front side against a coupling thrust direction, with the protective flap being actuated at the same time during the active longitudinal displacement of the contact carrier from a retracted position to an advanced position in order to release the electrical contacts.
- a longitudinally displaceable contact carrier which comprises electrical contacts aligned on the front side against a coupling thrust direction, with the protective flap being actuated at the same time during the active longitudinal displacement of the contact carrier from a retracted position to an advanced position in order to release the electrical contacts.
- the first-mentioned self-operated protective flaps which open automatically solely through mutual contact, have disadvantages in the mutual centering of the two contact carriers assigned to one another.
- the centering pins of the electrical contact couplings that are generally provided may only engage very late in the centering openings assigned to them in the other electrical contact coupling, since the coupling heads of the associated mechanical contact couplings must first be pre-centered in relation to one another. This results in comparatively high wear on both the electrical contacts and the centering pins. If the centering pins are relatively long, they come into contact with the assigned centering sockets on the other electrical contact coupling too early and can easily break off. Short centering pins, on the other hand, have a flat cone at their tip, so that large forces are exerted during centering, which in turn leads to excessive wear on the centering pins.
- the present invention is therefore based on the object of specifying an electrical contact coupling for a rail vehicle center buffer coupling, with the electrical contact coupling avoiding both the excessive wear mentioned above and the additional costs for a separately actuated drive.
- an electrical contact coupling, central buffer coupling or mechanical contact coupling refers to the coupling components arranged at an axial end of a first rail vehicle, which are connected to correspondingly opposite coupling components at the axial end of a second rail vehicle that is to be coupled to the first rail vehicle , can be connected to establish a mechanical and/or electrical coupling between the two rail vehicles.
- the respective coupling could also be viewed as a coupling half of a coupling arranged between two rail vehicles coupled to one another.
- the electrical contact coupling according to the invention for a central buffer coupling of a rail vehicle has a contact carrier which is longitudinally displaceable against a coupling impact direction and which has the front side opposite to the coupling impact direction has aligned electrical contacts.
- the electrical contacts are designed for mechanical and electrical coupling with identical electrical contacts of a counter-electrical contact coupling, which can be designed identically to the electrical contact coupling according to the invention or at least similar to it.
- the electrical contact coupling according to the invention has a protective flap which can be pivoted about an axis of rotation between a covering position in which it covers the electrical contacts and a release position in which it releases the electrical contacts.
- a drive in particular a purely mechanical drive, is provided in order to move the contact carrier longitudinally from a retracted position into an advanced position.
- the electrical contacts are moved further forward towards a mating electrical contact coupling, compared to the retracted position.
- the drive of the contact carrier is formed by a drive connection between the protective flap and the contact carrier, the protective flap using this drive connection when pivoting from the covering position into the release position to move the contact carrier by transmitting a driving force from the retracted position into the advanced position.
- the invention allows the contact carrier with the electrical contacts to be moved from the retracted position to the advanced position during the coupling process without using a separately operated drive.
- the drive can be formed solely by the drive connection between the protective flap and the contact carrier, so that the protective flap actuates the contact carrier to move it.
- the protective flap is the actuator of the contact carrier in order to move it.
- the contact carrier can be formed by a housing which, for example, also includes connections for electrical and/or signal-carrying supply lines and/or derivation lines, in particular in the form of one or more cables. This means that the entire housing can be moved accordingly by the drive. This creates a simple and robust embodiment.
- a contact carrier that can be moved in a housing is moved by the drive, whereas the housing is mounted in a stationary manner, for example on a coupling plate. This means that the displacement mechanism can be better protected from environmental influences.
- Other different designs are possible.
- the protective flap preferably has a back opposite the electrical contacts in the covering position and a front arranged opposite thereto, and the front is aligned with a contact surface for a protective flap of a counter-coupling obliquely or eccentrically to the axis of rotation in such a way that a pressure force on the contact surface causes the protective flap to pivot from the covering position to the release position.
- the protective flap can be opened independently, i.e. the protective flap can be pivoted independently from the covering position into the release position, if the protective flap of a mating electrical contact coupling abuts the contact surface of the protective flap on the front side. Due to the arrangement of the protective flap or its contact surface, the pressure force results in a torque in order to pivot the protective flap about the axis of rotation.
- the contact surface can be integrated directly into the flat front side of the protective flap, but can also only form part of the front side. Furthermore, the contact surface can be arranged offset in the longitudinal direction and/or transverse direction on the front side in relation to other flat areas of the front side.
- At least one elastic restoring element is provided in the electrical contact coupling, which engages the protective flap in order to protect it to apply a force for pivoting from the release position into the covering position.
- a delay element is provided in the drive connection between the protective flap and the contact carrier, which temporally delays the longitudinal displacement of the contact carrier from the retracted position into the advanced position compared to the start of pivoting of the protective flap from the covering position into the release position.
- the delay element comprises a cam arranged on the axis of rotation of the protective flap, which is coupled to the protective flap in a rotationally fixed manner and only when it is rotated together with the protective flap by a predetermined minimum angle, which is, for example, more than 5 °, 10 ° or 15 ° is, the rotational movement of the protective flap is passed on in the form of a longitudinal movement in the drive connection between the protective flap and the contact carrier in the direction of the contact carrier.
- the cam is directly connected to the protective flap in a rotationally fixed manner or is designed in one piece with it.
- An elastically resilient support can be provided in the drive connection, via which the driving force is transferred from the protective flap to the contact carrier.
- the electrical contact coupling can preferably be resiliently mounted in any position of the protective flap and the contact carrier and, for example, follow the movements of a coupling head in the mechanical contact coupling of the central buffer coupling while driving.
- the contact carrier can be supported against a stationary counter bearing. The driving force can therefore also act on the elastic support and thereby push the contact carrier away from the counter bearing by supporting it on the counter bearing.
- the cam acts, preferably directly, on the elastically resilient support.
- the electrical contact coupling comprises an elastic restoring device which applies a spring force to the contact carrier, which acts in the sense of moving the contact carrier from the advanced position into the retracted position.
- the contact carrier can be moved automatically into the retracted position when the drive via the protective flap is ended, that is, when the driving force that the protective flap exerts on the contact carrier is reduced or canceled.
- the electrical contact coupling has a support unit which can be arranged in a stationary manner on the rail vehicle or on the central buffer coupling, the electrical contact coupling being longitudinally displaceable relative to the support unit.
- the contact carrier can then be supported against the support unit via the elastically resilient support, and in particular also via the elastic restoring device.
- the support unit therefore forms the counter bearing mentioned. This allows the advantageous resilient storage to be achieved.
- a center buffer coupling according to the invention for a rail vehicle, in particular an automatic center buffer coupling has a mechanical contact coupling, which is designed in particular as a Scharfenberg coupling.
- the mechanical contact coupling comprises a mechanical coupling lock in order to be able to mechanically lock two identical center buffer couplings together, so that in addition to compressive forces, tensile forces can also be transmitted between the rail vehicles coupled to one another with the central buffer coupling.
- an electrical contact coupling is integrated into the center buffer coupling.
- the mechanical contact coupling preferably has a vertically oriented coupling plate which comprises a coupling funnel and a coupling cone, the electrical contact coupling being mounted on the coupling plate directly or indirectly, in particular above the coupling funnel and the coupling cone.
- Figure 1 shows a center buffer coupling with a mechanical contact coupling and an electrical contact coupling according to an exemplary embodiment of the present invention
- Figure 2 shows the electrical contact coupling from Figure 1 with the protective flap in the covering position
- Figure 3 shows the electrical contact coupling from Figure 1 with the protective flap in the release position
- Figure 4 shows schematically the longitudinal displacement of the contact carrier by driving the protective flap alone.
- FIG. 1 shows the front view, i.e. a view in the coupling direction, of a central buffer coupling for a rail vehicle, the central buffer coupling having a mechanical contact coupling 14 with a vertically oriented coupling plate 10, which encloses a coupling funnel 11 and a coupling cone 12.
- the mechanical contact coupling 14 also has a guide horn 15, which, with an opposite guide horn 15 of an opposite mechanical contact coupling 14, causes the two mechanical contact couplings 14 to pre-center with one another. The fine centering is then achieved via the coupling funnel 11 and the coupling cone 12, which work together with identical components of the counter-coupling, not shown.
- Support struts 16 are connected to the top of the coupling plate 10 and carry the electrical contact coupling 1.
- the electrical contact coupling 1 could also be connected to the mechanical contact coupling 14 in a different way.
- the components which each form a coupling funnel 11 and a coupling cone 12, form a coupling lock 17 in order to mechanically lock the two couplings together with corresponding components of the counter-coupling in such a way that tensile forces can be transmitted between the two couplings.
- compressive forces can be transmitted via coupling plates 10 that rest against one another.
- the electrical contact coupling 1 has a longitudinally displaceable contact carrier 2, which carries electrical contacts 3 at its front end facing the mating coupling.
- a longitudinally displaceable contact carrier 2 which carries electrical contacts 3 at its front end facing the mating coupling.
- a centering device is not absolutely necessary or could also be provided outside the end face shown here.
- the contact carrier 2 is advantageously formed by a housing which is longitudinally displaceable as a whole. On the housing, at the rear end facing away from the front side with the electrical contacts 3, for example, connections for one or more electrical cables and/or signal cables are provided. However, other embodiments are possible.
- the end face advantageously has a peripheral seal 20 along its outer circumference, so that in the coupled state with an identical electrical contact coupling 1, the electrical contacts 3 coupled to one another are protected from environmental influences.
- the electrical contacts 3, as shown, preferably have sockets and pins.
- a protective flap 4 is provided, the back 4.1 of which faces the electrical contacts 3 in the covering position of the protective flap 4 and the front 4.2 of which faces forward in the covering position of the protective flap 4 is.
- the protective flap 4 can be pivoted about the axis of rotation D from the covering position into the release position.
- the pivoting takes place automatically when two protective flaps 4 corresponding to mutually assigned electrical contact couplings 1 touch each other on the front sides 4.2, the contact surface of the front sides 4.2, on which the contact takes place, being arranged eccentrically or obliquely to the axis of rotation D in such a way that by continuing to move the two towards each other Electrical contact couplings 1 to be coupled to one another generate a torque which moves the protective flap 4 into the release position.
- the protective flap 4 has webs 4.3 which extend in the radial direction to the axis of rotation D in order to produce the desired distance between the front 4.2 of the protective flap 4 and the axis of rotation D.
- Elastic restoring elements 6, here in the form of two spiral springs, for automatically moving the protective flap 4 into the covering position generate a torque in the sense of pivoting the protective flap 4 about the axis of rotation D from the release position into the covering position.
- a drive connection is provided between the protective flap 4 and the longitudinally displaceable contact carrier 2, which forms a drive 5 for longitudinally displacing the contact carrier 2 from the retracted position into the advanced position.
- the retracted position of the contact carrier 2 is shown at the top in FIG. 4
- the advanced position of the contact carrier 2 is shown at the bottom in FIG. 4, the stroke during this displacement is designated H.
- the drive 5 is designed in such a way that simply pivoting the protective flap 4 from the covering position into the release position causes the contact carrier 2 to be moved from the retracted position to the advanced position.
- the drive 5 is designed to be purely mechanical.
- the drive 5 preferably has a delay element which temporally delays the longitudinal displacement of the contact carrier 2 from the retracted position into the advanced position compared to the start of the pivoting of the protective flap 4 from the covering position into the release position.
- the delay element is formed by a cam 7 arranged on the protective flap 4, which is connected to the protective flap 4 in a rotationally fixed manner. Due to the design of the cam 7, the cam 7 converts a rotational movement of the protective flap 4 into a longitudinal movement of the contact carrier 2, the longitudinal movement only beginning when the cam 7 starts from its position. ner zero position in the covering position of the protective flap 4 has rotated by a predetermined minimum angle, in particular of more than 5°, 10° or 15°, during the rotational movement of the protective flap 4.
- the cam 7 engages an elastically resilient support 8 of the contact carrier 2 on a support unit 13, relative to which the contact carrier 2 is longitudinally displaceable.
- This elastically resilient support 8 acts both in the covering position and in the release position of the protective flap 4 and enables the electrical contact clutch 1 to follow the movements of the mechanical contact clutch 14 while driving.
- the cam 7 When moving the protective flap 4 from the covering position into the release position, the cam 7 generates a compressive force on the elastically resilient support 8, which, however, resists this compressive force in such a way that the axis of rotation D of the cam 7 and the protective flap 14, together with the contact carrier 2, moves away from the elastically resilient support 8 moves away.
- an elastic reset device 9 which, like the elastically resilient support 8, also includes a compression spring between the contact carrier 2 and the support unit 13.
- the two compression springs could also be designed as a common compression spring.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022109029.9A DE102022109029A1 (de) | 2022-04-13 | 2022-04-13 | Elektrokontaktkupplung und Mittelpufferkupplung für ein Schienenfahrzeug |
| PCT/EP2023/058735 WO2023198501A1 (de) | 2022-04-13 | 2023-04-04 | Elektrokontaktkupplung und mittelpufferkupplung für ein schienenfahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4507946A1 true EP4507946A1 (de) | 2025-02-19 |
Family
ID=86051939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23717469.3A Withdrawn EP4507946A1 (de) | 2022-04-13 | 2023-04-04 | Elektrokontaktkupplung und mittelpufferkupplung für ein schienenfahrzeug |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4507946A1 (de) |
| KR (1) | KR20250003479A (de) |
| DE (1) | DE102022109029A1 (de) |
| WO (1) | WO2023198501A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE811360C (de) | 1949-10-15 | 1951-08-20 | Scharfenberg Kupplung A G | Anordnung zum selbsttaetigen OEffnen der Schutzklappen an der Leitungskupplung einer selbsttaetigen Fahrzeugkupplung |
| DE1778648U (de) * | 1954-07-02 | 1958-12-04 | Bergische Stahlindustrie | Schwenkbare schutzkappenanordnung fuer die leitungskupplung selbsttaetiger fahrzeugkupplungen. |
| AT283435B (de) | 1966-03-21 | 1970-08-10 | Mini Verkehrswesen | Selbsttaetige leitungskupplung fuer schienenfahrzeuge |
| DE19926058A1 (de) | 1999-06-08 | 2000-12-14 | Scharfenbergkupplung Gmbh & Co | Elektrokontaktkupplung für automatische Mittel- oder Mittelpufferkupplungen für Schienenfahrzeuge |
| WO2021110660A1 (de) | 2019-12-02 | 2021-06-10 | Voith Patent Gmbh | Elektrokontaktkupplung und mittelpufferkupplung für ein schienenfahrzeug |
| DE102019132641A1 (de) * | 2019-12-02 | 2021-06-02 | Voith Patent Gmbh | Elektrokontaktkupplung und Mittelpufferkupplung für ein Schienenfahrzeug |
| DE202020005519U1 (de) * | 2020-04-06 | 2021-08-18 | Voith Patent Gmbh | Elektrokupplung für ein spurgebundenes Fahrzeug, automatische Kupplung mit einer derartigen Elektrokupplung |
-
2022
- 2022-04-13 DE DE102022109029.9A patent/DE102022109029A1/de active Pending
-
2023
- 2023-04-04 EP EP23717469.3A patent/EP4507946A1/de not_active Withdrawn
- 2023-04-04 KR KR1020247027163A patent/KR20250003479A/ko active Pending
- 2023-04-04 WO PCT/EP2023/058735 patent/WO2023198501A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023198501A1 (de) | 2023-10-19 |
| DE102022109029A1 (de) | 2023-10-19 |
| KR20250003479A (ko) | 2025-01-07 |
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