Energy transfer system

Abstract

The invention relates to an energy transmission system 1 with a passive contacting unit 2 and with an active contacting unit 3, wherein the passive contacting unit 2 has several electrically insulated busbars 12, 13, wherein the busbars 12, 13 have a longitudinal direction LR and a first transverse direction QR1 perpendicular thereto, wherein the busbars 12, 13 are configured to be contacted in the first transverse direction QR1 by an active contacting unit 3, wherein two of the busbars 12, 13 are arranged parallel to each other on opposite longitudinal sides 5, 6 of the same insulating body 4, wherein the insulating body 4 projects beyond the busbars 12, 13 opposite the first transverse direction QR1, wherein at least one contact rail 18, 19 is arranged at this projecting end 9 of the insulating body 4, wherein the at least one contact rail 18, 19 has a longitudinal direction LR corresponding to the busbars 12, 13.and is designed to be contacted in the transverse direction QR1 by the active contacting unit 3, such that the busbars 12, 13 have contact surfaces 14, 15 for plugging in with the active contacting unit 2, wherein the contact surfaces 12, 13 face away from each other, wherein the active contacting unit 3 has busbars 22, 23 with contact surfaces 26, 27 facing each other, wherein the distance between the contact surfaces 26, 27 of the busbars 22, 23 of the active contacting unit 3 is selected such that a planar contact with the contact surfaces 14, 15 of the busbars 12, 13 of the passive contacting unit 2 can be established by a displacement in the first transverse direction QR1.

Description

[0001] The invention relates to an energy transmission system having the features of patent claim 1.

[0002] Energy transmission systems are known in the prior art, for example, busbar assemblies that comprise a busbar with a support rail and can accommodate a detachable current collection device, whose contact fingers can be used to establish contact with current-carrying conductors of the busbar. Power can be drawn from such a busbar at any point via a current collection device that is inserted into the open slot of the busbar (DE 72 32 888 U).

[0003] DE 20 2018 101 958 U1 discloses a current-carrying profile with a tap-off plug. The tap-off plug connector has a plurality of webs arranged side by side and has electrical contact elements, each of which, together with an associated web, is designed to engage a groove in the current-carrying profile in order to electrically contact an electrical conductor in the groove. Such current-carrying profiles and associated tap-off plug connectors are used, for example, for wiring and connecting lights.

[0004] It is common for ships, such as ferries, to be supplied with shore power, even during short layovers in port. Shore power supplies the on-board electrical system, but can also be used to charge electrically powered ships. To compensate for relative movements between the ship and the shore side of a power transmission system, individually insulated, vertically arranged busbars can be used to transmit either electrical power or data. To map multiple phases (L1, L2, L3, L4), multiple busbars must be arranged vertically next to each other and electrically insulated. This requires a relatively wide installation space.

[0005] The invention is based on the object of demonstrating a more compact energy transmission system.

[0006] This object is achieved by an energy transmission system having the features of patent claim 1.

[0007] The subclaims relate to advantageous developments of the invention.

[0008] The basic idea of ​​the invention is to provide a single insulating body with multiple phases, wherein at least two phases (L1, L2) are intended to serve for power transmission and at least one further phase (L3, L4) is preferably intended for data transmission. The energy transmission system according to the invention accordingly provides a plurality of mutually electrically insulated busbars on a passive contacting unit, wherein the busbars have a longitudinal direction and a first transverse direction perpendicular thereto. The busbars are designed to be contacted in a first transverse direction by an active contacting unit, wherein two of the busbars are arranged parallel to one another on opposite sides of the same insulating body.

[0009] The passive contact unit with the insulating body is the male component of the power transmission system. The active contact unit is the female component of the power transmission system. Although the contact units are brought into contact with each other via a plug-in movement, so that the two contact units are oriented in the plug-in direction and in a transverse direction, particularly horizontally, it remains possible, however, to move the active contact unit in the longitudinal direction of the busbars even when plugged in, without interrupting the electrical contact.

[0010] The insulating body projects beyond the busbars towards the active contacting unit, counter to the first transverse direction. At this projecting end of the insulating body there is an end face in which at least one contact bar is arranged. This at least one contact bar has a longitudinal direction corresponding to the busbars and a corresponding first transverse direction and is designed to be contacted by the active contacting unit in the first transverse direction. According to the invention, an insulating body is thus provided which simultaneously has at least three bars, two of which are busbars and a further bar is a contact bar. The two busbars which are opposite one another serve for power transmission. The distance between these bars is the greatest. At least one further contact bar is preferably used for data transmission. It is located on an end face orat the end of the insulation body that protrudes beyond the transverse sides of the busbars, i.e., between the busbars when viewed in the plug-in direction. The length of such vertically arranged multi-phase contact bars can be individually adapted to the intended use. The length can be, for example, 3 m.

[0011] The busbars each have contact surfaces for plugging in contact with the active contacting unit. The contact surfaces face away from one another. The active contacting unit has busbars with contact surfaces facing one another. The busbars of the active contacting unit can have a different length than the busbars of the passive contacting unit. Preferably, the busbars of the active contacting unit have a greater width, measured in the plugging direction, than the busbars of the passive contacting unit. The spacing of the contact surfaces of the busbars of the active contacting unit is selected such that a transverse displacement can establish surface contact with the contact surfaces of the busbars of the passive contacting unit.In contrast, a preferred further development provides that the contact rails have contact surfaces for plugging into the contact unit, wherein these contact surfaces are perpendicular to the transverse direction and designed for contact perpendicular to the contact surfaces. Two different mechanical contact principles are implemented on the insulating bodies: For the busbars, the electrical contact is established by a plug connection parallel to the plug direction, and for the at least one contact rail, the electrical contact is established by a plug connection perpendicular to the plug direction.

[0012] At least one of the busbars of the active contacting unit is spring-loaded and / or mounted to generate sufficient contact force. These outer busbars are used primarily for power transmission, since, with a corresponding width of the busbars, relatively large contact surfaces can be realized without increasing the horizontal width measured transversely to the plug-in direction. With the end-face contact bars, electrical contact is established by moving the contact surfaces perpendicularly toward each other, corresponding to the plug-in direction. Here, too, the contact bars of the active contacting unit can be spring-loaded and / or mounted to ensure a sufficiently large contact surface.

[0013] In an advantageous development of the invention, the insulating body has pockets in which the busbars are arranged. The pockets are dimensioned such that essentially only the contact surfaces protrude beyond the insulating body, resulting in a very narrow insulating body. Furthermore, the insertion forces acting on the contact surfaces in the insertion direction can be transmitted into the insulating body via the pockets. In particular, the arrangement according to the invention eliminates the need for multiple such insulating bodies, since at least three parallel busbars / contact rails can be arranged within a single insulating body, both for power transmission and data transmission.

[0014] The energy transmission system according to the invention comprises, with respect to the active contact unit, which is the female counterpart to the insulator body, contact rails and busbars that correspond to the corresponding contact rails and busbars in the passive contact unit. Even during plug-in contact, relative movement between the active contact unit and the passive contact unit in the longitudinal direction of the busbars / contact rails remains possible. When used between a land-based unit and a watercraft-based unit, for example, a tidal range or a change in the position of the watercraft during loading and unloading can be compensated.In particular, the active contact unit can have means to further compensate for relative movement between the active contact unit and the watercraft, either through resilient mounting of the busbars and contact rails or through resilient or flexible mounting of the active contact unit as a whole. The active contact unit carries out the plugging movement and maintains the necessary plugging force. The active and passive contact units can be separated at any time, since the components described above are only connected to each other in a force-fitting manner and not in a form-fitting manner with respect to the plugging direction.

[0015] The invention is explained in more detail below using an exemplary embodiment illustrated in purely schematic drawings. These show: Figure 1 shows a horizontal section through an energy transmission system in which the active contacting unit is separated from the passive contacting unit and Figure 2 shows the energy transmission system of the Figure 1 when plugged in.

[0016] The Figure 1 shows a power transmission system 1 with a passive contact unit 2 and an active contact unit 3. The arrangement is used in particular for shore-side power transmission. The passive contact unit 2 is arranged, for example, onshore, and the active contact unit 3 is arranged on a ship.

[0017] The passive contact unit 2 is designed as a male part and the active contact unit 3 as a female part. The passive contact unit 2 has an insulating body 4, which is designed as an elongated web. The representations of the Figures 1 and 2show the cross-section through the web. The Cartesian coordinate system shows that the +z direction facing the observer corresponds to the longitudinal direction LR of the insulation body 4 and all other components. The +x direction is the insertion direction, e.g., horizontally from the water to the land side. The insertion direction SR corresponds to the first transverse direction QR1 of the insulation body 4. The second transverse direction QR2 points in the +y direction.

[0018] The insulating body 4 has opposite, parallel long sides 5, 6 and an end face 7 that is perpendicular to the long sides 5, 6. Between the long sides 5, 6 and the end face 7 there are inclined surfaces 8 that serve as insertion bevels for the front end 9 of the insulating body 4. The long sides 5, 6 contain pockets 10, 11, each of which contains a busbar 12, 13. The contact surfaces 14, 15 of the busbars 12, 13 point outwards in opposite directions and run parallel to one another. In the end face 7 there are two pockets 16, 17 that are spaced apart from one another, each of which contains a contact bar 18, 19, the contact surfaces 20, 21 of which are oriented in the second transverse direction QR2.

[0019] The active contacting unit 2 also has busbars 22, 23 and two contact bars 24, 25. The contact surfaces 26, 27 of the busbars 22, 23 face inwards, so that electrical contact with the busbars 12, 13 on the insulating body 4 is made via a plug connection parallel to the plug-in direction SR in the +x direction. The contact surfaces 28, 29 of the contact bars 24, 25 are arranged on the end face of the contact bars 24, 25, i.e., transversely to the plug-in direction SR. They are located in the same plane, so that electrical contact with the contact bars 18, 19 on the insulating body 4 is made via a plug connection perpendicular to the plug-in direction SR in the +x direction. Figure 2 shows the power transmission system in the plugged-in position. Phases L1, L2, L3, and L4 are connected via busbars 13, 23 and 12, 22, respectively, and contact bars 18, 24 and 19, 25, respectively. Reference symbol:

[0020] 1 - Energy transmission system 2 - Passive contact unit 3 - Active contact unit 4 - Insulation body 5 - Long side of 4 6 - Long side of 4 7 - End of 4 8 - Inclined surface 9 - End of 4 10 - Pocket 11 - Pocket 12 - Busbar 13 - Busbar 14 - Contact surface of 12 15 - Contact surface of 13 16 - Pocket in 7 17 - Pocket in 7 18 - Contact rail 19 - Contact rail 20 - Contact surface of 18 21 - Contact surface of 19 22 - Busbar of 3 23 - Busbar of 3 24 - Contact rail of 3 25 - Contact rail of 3 26 - Contact surface of 22 27 - Contact surface of 23 28 - Contact surface of 24 29 - Contact surface of 25 QR1 - First transverse direction QR2 - Second transverse direction LR - Longitudinal direction SR - insertion direction

Claims

1. Energy transmission system (1) with a passive contacting unit (2) and with an active contacting unit (3), wherein the passive contacting unit (2) has a plurality of busbars (12, 13) which are electrically insulated from one another, wherein the busbars (12, 13) have a longitudinal direction (LR) and a first transverse direction (QR1) perpendicular thereto, wherein the busbars (12, 13) are designed to be contacted in the first transverse direction (QR1) by an active contacting unit (3), wherein two of the busbars (12, 13) are arranged parallel to one another on opposite longitudinal sides (5, 6) of the same insulating body (4), wherein the insulating body (4) projects beyond the busbars (12, 13) counter to the first transverse direction (QR1), wherein at least one contact bar (18, 19) is arranged at this projecting end (9) of the insulating body (4), wherein the at least one contact bar (18, 19) one of the busbars (12,13) corresponding longitudinal direction (LR), and is designed to be contacted in the transverse direction (QR1) by the active contacting unit (3), in that the busbars (12, 13) have contact surfaces (14, 15) for the plug-in contact with the active contacting unit (2), wherein the contact surfaces (12, 13) face away from each other, wherein the active contacting unit (3) has busbars (22, 23) with mutually facing contact surfaces (26, 27), wherein the distance between the contact surfaces (26, 27) of the busbars (22, 23) of the active contacting unit (3) is selected such that a displacement in the first transverse direction (QR1) can produce a planar contact with the contact surfaces (14, 15) of the busbars (12, 13) of the passive contacting unit (2).

2. Energy transmission system (1) according to claim 1, characterized in that the at least one contact rail (18, 19) is designed for data transmission.

3. Energy transmission system (1) according to one of claims 1 or 2, characterized in that the contact rails (18, 19) have contact surfaces (20, 21) for the plug-in contact with the active contacting unit (2), wherein the contact surfaces (20, 21) are perpendicular to the first transverse direction (QR1) and are designed for contact perpendicular to the contact surfaces (20, 21).

4. Energy transmission system (1) according to one of claims 1 to 3, characterized in that the insulating body (4) has pockets (10, 11) in which the busbars (12, 13) are arranged.

5. Energy transmission system (1) according to one of claims 1 to 4, characterized in that the busbars (12, 13) and the contact rails (18, 19) run vertically.

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