Plug for electrically connecting electric cables to a busbar, and busbar system designed with same

Abstract

The invention relates to a plug (1) for electrically connecting electric cables (K) to a busbar (110), having a carrier (2), a housing (3) which is fastened to the carrier (2), coupling portions (20, 38) for fastening the plug (1) in a fastening direction (B) relative to a busbar (110) in a busbar system (100), a plurality of contact elements (4) for electrically connecting the electric cables (K) and for making electric contact with the busbar (110), wherein the contact elements (4) are supported in the housing (3) such that for each contact element (4), an electric contact portion (40) for making electric contact with the busbar (110) projects out of the housing (3) in the fastening direction at least in one contacting position, and an actuation mechanism (6) by means of which the plurality of contact elements (4) can be moved in the fastening direction (B) relative to the coupling portions (20, 38) selectively from a mounting position to the contacting position. The present invention also relates to a busbar system (100) having the plug (1) according to the invention and having a busbar (110) extending elongately along an axis of extent (E).

Description

[0001] Plug for electrical connection of electrical cables to a busbar and busbar system formed therewith

[0002] The present invention relates to a plug for electrically connecting electrical cables to a busbar and to a busbar system comprising such a plug and a corresponding busbar to which the plug can be electrically connected.

[0003] Such connectors are generally known from the prior art. In particular, such connectors are used to enable an electrical connection for an electrical load at a desired location along the length of the busbar. The connector is electrically connected to the busbar at the desired location, allowing an electrical load connected to the connector to be supplied with power and / or data via the busbar and further via the connector and any additional wiring or cables.

[0004] It is also conceivable to use corresponding connectors for the power supply or output. In this case, the connector serves as a feed-in or feed-out point for the supply or output of power and / or data – usually supplied via external cabling or cables. Such connectors require secure and permanent electrical contact with the respective electrical conductors of the busbar, thus requiring high holding forces.

[0005] It is now an object of the present invention to provide a plug and a busbar system of the type mentioned at the outset, which enable simple assembly with permanently secure electrical contact of the plug to a busbar or a busbar system.

[0006] This object is achieved by the subject matter of the independent claims. The dependent claims develop the central idea of ​​the present invention in a particularly advantageous manner.

[0007] According to a first aspect, the present invention relates to a plug for electrically connecting electrical cables to a busbar. The plug has a carrier. The plug further has a housing which is fastened to the carrier. In addition, the plug has one or more coupling sections for fastening the plug in a fastening direction relative to a busbar (thus, the coupling sections are intended to act in a mechanically coupling (e.g., latching) manner when the plug moves in the fastening direction in a busbar system in order to fix the plug relative to a busbar of the busbar system). The plug further has a plurality of contact elements for electrically connecting the electrical cables and for electrically contacting the busbar.The contact elements are mounted in the housing such that, for each contact element, an electrical contact section protrudes from the housing for electrical contacting with the busbar at least in one contacting position (and possibly also in a mounting position described below) in the fastening direction (i.e., in the direction of the fastening movement of the plug). The plug also has an actuating mechanism by means of which the plurality of contact elements can be moved (preferably simultaneously or jointly) relative to the coupling sections (preferably at least relative to the carrier) selectively from one (or the) mounting position in the fastening direction into the contacting position.

[0008] By means of the plug according to the invention, the coupling section(s) enable the plug to be attached in a simple and secure manner in a busbar system relative to a busbar thereof. The mobility of the plurality of contact elements by means of the actuating mechanism also makes it possible to initially provide the plurality of contact elements in a retracted position of the actuating mechanism in order to easily enable the installation of the plug by means of the coupling sections - e.g., on the busbar itself and / or on a support profile of the busbar system. In the contacting position, the plug can then be held in electrical contact with the busbar in a permanently secure and effective manner.This allows the connector to be easily mechanically fastened first, while in a second step the resulting fastening is used to permanently ensure electrical contact, even when high holding forces are required.

[0009] The housing can preferably have a fixing part that is connected to the carrier and fixed relative to the carrier to form a carrier part together with the carrier. Furthermore, the housing can have a movable part that, as part of the actuating mechanism, is mounted on the carrier part (i.e., on the fixing part and / or on the carrier; preferably on the fixing part) so as to be movable along the fastening direction in order to selectively move the plurality of contact elements from the mounting position into the contacting position. This housing design makes it easy to securely fix the housing to the carrier—namely, by means of the fixing part. The movable part, as part of the actuating mechanism, also makes it possible, due to the two-part housing, to provide the plurality of contact elements in a particularly simple manner for movement and to actuate them as needed.This allows for an overall simple but effective structure to be provided.

[0010] The carrier part can have the coupling sections. Thus, the coupling sections can be provided on an existing, stable component of the connector, allowing the connector to be designed to be stable and compact overall.

[0011] One of the movable part and the support part (with regard to the support part, the fixing part and / or the support - preferably the fixing part - are suitable) can preferably have a projection section, and the other of the movable part and the support part (this is, as already mentioned, the fixing part and / or the support part; preferably the fixing part) can then have a rail section. The rail section extends parallel to the fastening direction. The projection section is then arranged in the rail section so as to slide or at least be guided for defined movement between the mounting position and the contacting position. In this way, a simple structural element can be provided for forming a secure and defined guide between the mounting position and the contacting position. Thus, contact can be reliably achieved and operating comfort increased.

[0012] The fixing part and the movable part can preferably accommodate and support the plurality of contact elements between them, at least partially and preferably completely. This allows the contact elements to be accommodated and held securely and safely. Depending on the arrangement, defined safety specifications—such as any required clearance and creepage distances—can be met.

[0013] The housing—preferably its fixing part, if present—can have at least some of the coupling sections; this is preferably for securing the plug in the fastening direction to the busbar. The housing can thus be brought into a compact and tighter coupling arrangement with a busbar, resulting in effective fastening. Furthermore, the coupling sections can thus be provided together with the housing in a simple manner.

[0014] The housing is preferably made of a plastic material and is particularly designed as an insulating material housing. This allows the connector to be designed to be particularly secure overall. The housing can thus be easily manufactured, for example, using an injection molding process and conventional means. The carrier can preferably have a U-shape. This allows the carrier to have a simple—and thus easy to manufacture—but still stable shape.

[0015] The support—preferably a U-shaped support—can have two opposing side walls between which the housing is accommodated. This allows the housing to be securely fastened or movably mounted between the two side walls.

[0016] The side walls can preferably have first locking structures with which second locking structures of the fixing part interact to form the support part. These locking structures can, for example, be projections (for example, on the fixing part) and corresponding receptacles or through-openings (for example, on the side walls of the support) on the one hand. This provides a simple but effective fastening option for forming the support part.

[0017] The carrier - preferably the U-shaped carrier - can further comprise a connecting leg connecting the side wall, which at least partially spans the housing and preferably the movable part on a side of the plug facing away from the contact sections. If the carrier essentially comprises only the connecting legs and the side walls extending essentially parallel thereto in the same direction and on the same side, the aforementioned U-shape results, for example. The connecting leg provides a simple way of holding the side walls securely and stably and of making the carrier as a whole (e.g., torsional and / or flexurally) rigid. Since it spans the housing and preferably the movable part, the connecting leg can also serve to protect the housing and, if necessary, as a support for the movable part or the actuating mechanism for transferring it into the contacting position.

[0018] The support can preferably comprise at least some of the coupling sections. Thus, the stable support can additionally be assigned the fastening function, resulting in an effective and stable fastening.

[0019] The coupling sections of the carrier are preferably provided at the distal ends of the side walls relative to the connecting leg for snap-in fastening of the plug relative to the busbar in the busbar system. If the carrier has only one coupling section, this can be provided on only one of the side walls or divided between the two side walls. Thus, the coupling section(s) can be effectively exposed and provided pointing or projecting in the fastening direction, thus enabling simple and secure fastening of the plug to a busbar or in a busbar system.

[0020] The carrier can preferably have a grounding contact section. Thus, by attaching the plug to the busbar, a grounding connection can be established or at least provided at the same time. In a preferred embodiment, the grounding contact protrudes laterally outwards with respect to the fastening direction. Because the grounding contact section is provided in such an exposed manner, grounding contact can be established easily and reliably. The grounding contact section is preferably designed to be elastically springy such that it yields accordingly when contacted laterally (e.g., against a support profile of a busbar system) for grounding contact, in order to, on the one hand, safely and easily complete the attachment of the plug to the busbar, but at the same time, due to the spring force of the grounding contact section, urges it into secure and permanent contact.

[0021] The actuating mechanism preferably has a translationally and / or rotationally movable actuating part, which interacts with the plurality of contact elements or, if present, with the movable part of the housing in such a way as to selectively move the plurality of contact elements from the mounting position to the contacting position upon movement of the actuating part. In principle, it is not excluded that the actuating part can also move the plurality of contact elements from the contacting position to the mounting position. In principle, the actuating part makes it possible to transfer the plurality of contact elements into the contacting position (and, if necessary, back into the mounting position) in a simple and intuitive manner.

[0022] The rotatably movable actuating part preferably has an actuating lever that can be rotated about a rotational axis. This allows a suitable lever arm to be provided as required for easy actuation and, consequently, movement of the plurality of contact elements. Furthermore, an actuating lever is convenient and intuitive to operate, which further increases overall operating comfort.

[0023] The actuating lever preferably has a manipulation section for manually rotating the actuating lever around the rotation axis. This allows an operator to operate the actuating lever easily and conveniently. In principle, a translationally movable or a combined translationally and rotationally movable actuating part can also have a corresponding manipulation section for manual and preferably translational movement of the actuating lever along the fastening direction.

[0024] The manipulation section can preferably protrude in the assembly position on a side of the plug facing away from the contact sections, counter to the fastening direction. Since the manipulation section thus protrudes from the plug, it can be provided, for example, as a safety feature that indicates to an operator that the plug has not yet been moved into the contacting position and is therefore not (safely) ready for use. The manipulation section can protrude in such a way that, when used and fastened in a busbar system (described below), it protrudes into an area of ​​loads to be installed using the plug. This reliably prevents incorrect installation.

[0025] The actuating lever can preferably have a bearing shaft section that is rotatably mounted in the support, preferably in the side walls, if present, and / or in the housing. The actuating lever can thus be easily mounted for defined movement around the rotation axis.

[0026] The bearing shaft section can preferably extend between the connecting leg and the movable part; preferably transversely or perpendicularly to the fastening direction. This enables an overall compact design of the plug, while the functional features of the actuating mechanism can be effectively provided. For example, the bearing shaft section can be supported on the support or the connecting leg if it is guided along it. The actuating mechanism can also be effectively provided on the movable part or guided along it, in order to thus easily transmit a corresponding actuating force to it—preferably assisted by the support on the support or connecting leg. This will also be described in more detail below using an exemplary embodiment.

[0027] The actuating lever or, if present, the bearing shaft section can have a cam section that protrudes radially relative to the rotation axis in order to interact with the plurality of contact elements or the movable part of the housing to move the plurality of contact elements from the mounting position to the contacting position (and possibly back again) when the actuating lever moves about the rotation axis. A cam is a particularly simple but effective measure for converting a corresponding rotary movement (here of the actuating lever) into a translational movement (here of the plurality of contact elements or the movable part with them in the fastening direction).

[0028] In principle, it is also conceivable that the actuating mechanism can be operated in another way, for example by means of a push button, or purely manually.

[0029] In the contacting position, the actuating part preferably extends in a plane oriented perpendicular to the fastening direction. This allows the actuating part to be safely and easily stowed in the contacting position, or the plug can be designed to be flat in height, at least or especially in its operating state.

[0030] In the contacting position, the actuating part preferably extends in a direction perpendicular to the fastening direction on an outer side of the plug facing away from the contact sections, essentially flush with the carrier or its connecting leg. This allows for an overall flat plug and a rear or exposed side of the plug that is as flat as possible in the contacting position, which enables a preferably flat and flat construction and thus a particularly compact design.

[0031] In the contacting position, the actuating part can preferably be arranged offset from the outside of the plug in the fastening direction relative to an outer side of the plug facing away from the contact sections. Thus, the actuating part can be securely stowed in the contacting position—at least vertically along the fastening direction—so that electrical loads of a busbar system described below can be arranged safely, easily, and compactly in the vicinity of the plug.

[0032] In principle, it is conceivable for the actuating part to be locked in the mounting position and / or in the contacting position; for example, with the carrier part. For example, the actuating part can lock in the mounting position with corresponding locking structures on the carrier, and / or the actuating part can lock in the contacting position with corresponding locking structures on the housing, for example, in order to be securely held in the respective position (i.e., mounting position or contacting position).

[0033] The contact elements and / or the contact sections can preferably be arranged parallel to one another. This allows the contact elements or contact sections to be provided as compactly as possible. This is particularly advantageous if the busbar is also provided with compact electrical conductors aligned longitudinally and parallel to one another in a row. This allows for a connector that is as compact as possible, particularly in terms of width, for attachment and contacting with a corresponding compact busbar.

[0034] The contact sections can preferably be arranged in a row next to one another, either transversely or perpendicularly to the fastening direction. This allows the contact sections to be provided as compactly as possible across the entire width.

[0035] The contact sections arranged side by side in a row can preferably protrude alternately more and less in the fastening direction. The contact sections can thus be provided, for example, side by side and nested within each other, which allows for a further compact design of the plug. Busbars provided accordingly can then preferably also have electrical conductors that are alternately offset in height relative to the fastening direction.

[0036] Each of the contact elements can preferably have a contact carrier, which is arranged to be movable relative to the associated contact section along the fastening direction. The contact carrier and the contact section are then electrically connected to one another in each of their relative movement positions. The contact carrier can provide a simple and stable structure for the contact elements. Since the associated contact sections and contact carriers are electrically connected to one another in each of their relative movement positions, a permanent electrical connection can be reliably provided. For example, such an electrical connection can be realized via a corresponding sliding or sliding contact.

[0037] Within the scope of the invention, the movement of the contact element from the mounting position to the contacting position (and possibly back) may include a movement of the entire contact element and / or a part thereof (such as the relative movement of the contact carrier and the contact section).

[0038] A spring element can preferably be arranged between the contact carrier and the contact section, which urges the contact carrier and the contact section away from each other; thus along the fastening direction. On the one hand, the spring element serves to exert a correspondingly high spring force from the contact carrier to the contact section by compressing the spring element in the contacting position, so that the contact section can be pressed against the busbar in secure physical and thus electrical contact. Furthermore, the spring element can also serve to urge or move the contact element or the movable part into the mounting position when the plug is not attached to the busbar. For this purpose, the contact section can be supported, for example, on a stop section on the housing or the fixing part.

[0039] The spring element preferably comprises or is a spiral spring. Thus, a conventional component can be used as the spring element.

[0040] Each of the contact elements can preferably have at least one and further preferably two conductor terminal connections for connecting an electrical cable. The conductor terminal connection(s) is / are then electrically connected to the associated contact section. In this way, the electrical conductors can be electrically contacted with the contact element in a simple manner—for example, by simply plugging or pushing them in—and thus electrically connected. This simplifies the assembly or connection of electrical conductors of electrical consumers or external cabling for supply / output, or also of electrical conductors for a connector consisting of two such plugs, which can electrically connect two adjacent busbars to one another via appropriate cabling.

[0041] Each of the conductor terminal connections preferably has an electrical contact area of ​​the contact carrier and a clamping spring pressing toward the contact section, forming a conductor clamping point between them. This provides an effective spring-loaded terminal connection that enables particularly simple and intuitive fastening or connection of an electrical cable.

[0042] The clamping springs of the same contact carrier can preferably be formed integrally with one another. For example, it is conceivable for a contact carrier to provide a conductor clamping point on two opposite sides, thus providing through-wiring or a feed and tap, and the like, for each of the contact elements. By preferably providing the conductor clamping points opposite one another and making them accessible, convenient connection can be achieved.

[0043] The clamping springs are preferably made of steel, particularly preferably spring steel. They thus offer a high clamping force and are particularly easy to manufacture—for example, using a stamping and bending process. The clamping springs can, for example, be riveted to the contact carrier or otherwise attached to it (preferably directly). The electrical contact section is preferably made of bronze, but can also be made of another electrically conductive material, such as copper.

[0044] The contact carrier can also be made of bronze or, preferably, copper.

[0045] The carrier is preferably made of an electrically conductive material; this is especially true if the carrier has the grounding contact section or is intended to serve as a grounding contact. The carrier can preferably be made of sheet metal, for example, in a stamping and bending process.

[0046] The connector components, if they serve to make electrical contact, are therefore made of a material appropriate to their function. Highly electrically conductive components, such as the contact section and the contact carrier, are preferably made of bronze or copper. Components that primarily serve to provide stability (e.g., the carrier) can be made of sheet metal. The carrier is thus easy and inexpensive to manufacture while still maintaining high dimensional stability. If the carrier is also intended to serve as a grounding connection, sheet metal material has the advantage of corresponding electrical conductivity.

[0047] According to a further aspect, the present invention further relates to a busbar system. The busbar system comprises, on the one hand, the plug according to the invention already described above. Furthermore, the busbar system further comprises a busbar extending longitudinally along an extension axis and having a plurality of electrical conductors extending parallel to the extension axis. The extension axis is preferably rectilinear, but can also run in another manner (e.g., wave-shaped or jagged).

[0048] The plug can be connected to the busbar in the fastening direction such that the plug is fastened with its coupling section(s) to the counter-coupling section(s) of the busbar system relative to the busbar. In the fastened position, the plurality of contact elements can then be moved (preferably simultaneously or jointly) by means of the actuating mechanism from the mounting position to the contacting position such that each of the electrical contact sections is in direct physical and electrical contact with one (preferably with a different one) of the electrical conductors, at least in the contacting position (and possibly also already in the mounting position; but then weaker). The previously described advantages of the plug are thus transferred in the same way to a busbar system equipped with it.On the one hand, the plug can be easily attached to the busbar via the coupling sections, while the actuating mechanism can then provide a simple but safe and permanent electrical contact.

[0049] The busbar system further comprises a support profile extending longitudinally along the extension axis, which supports the busbar. The support profile preferably completely accommodates the busbar and the attached connector in the contacting position. The support profile can provide a secure support element for the busbar. By completely accommodating the busbar and connector in the contacting position, they can be securely protected within the support profile and simultaneously enable the secure connection of electrical loads that are to be connected to the busbar using the corresponding connector.

[0050] The support profile can preferably comprise at least some of the counter-coupling sections. In this way, the counter-coupling sections are provided in a particularly stable component, thus enabling effective fastening.

[0051] The support profile can preferably have a receiving groove extending parallel to the extension axis on both sides of the busbar, which forms the counter-coupling sections or at least part of them. The counter-coupling sections can thus be provided in a simple manner and, at the same time, in a particularly effective and reliable manner.

[0052] The support profile can preferably have a U-shaped cross-sectional profile that is open on the side opposite the busbar. This makes the support profile both easy to manufacture and particularly stable. The open side also allows for easy insertion of components (e.g., the busbar and / or the connector and / or electrical loads) into the support profile.

[0053] The busbar system can also accommodate electrical loads such as lights, sensors, loudspeakers, etc. These can then be electrically connected to the contact elements and thus—with the plug attached and contacted—to the busbar.

[0054] The busbar system can preferably have several of the plugs, the

[0055] Contact elements are electrically connected to one another to form an electrical connector. The busbar system can then also comprise a plurality of busbars, wherein each of the plugs of the electrical connector is physically and electrically contacted or contactable with one (or another) of the busbars, thereby electrically connecting the contacted busbars to one another.

[0056] The busbar can preferably have at least some of the counter-coupling sections. This allows the connector to be attached directly to the busbar, resulting in a secure and compact connection.

[0057] The busbar can preferably have a plurality of adjacent grooves extending parallel to the extension axis, each of which accommodates one of the electrical conductors, and through which one of the contact sections of the attached plug engages in the contacting position for direct physical and electrical contact with the respective electrical conductor. This allows the conductors to be provided and held in a simple and securely aligned manner. Furthermore, by inserting the conductors into a groove, they are securely held—for example, even from contact by an operator. Nevertheless, a simple electrical tapping can be achieved via the respective groove using the contact sections.

[0058] The grooves arranged next to one another in a row preferably have an alternating depth down to the respective electrical conductor of depth C and depth D, where depth C is smaller than depth D. Thus, the electrical conductors can be arranged particularly compactly nested next to one another; in particular when the grooves generally have a smaller width (seen perpendicular to the fastening direction and to the extension axis) than the conductors.

[0059] Further advantages, features, and embodiments of the present invention are described with reference to the figures of the accompanying drawings. They show:

[0060] Fig. i is a perspective view of a connector according to an embodiment of the present invention in the mounting position,

[0061] Fig. 2 is a perspective bottom view of the plug according to Fig. i,

[0062] Fig. 3 is a front view of the plug according to Fig. i seen in direction III,

[0063] Fig. 4 is a side view of the plug according to Fig. i seen in direction IV, Fig. 5 is a top view of the plug according to Fig. 1 seen in direction V,

[0064] Fig. 6 is a perspective exploded view of the plug according to Fig. 1,

[0065] Fig. 7 is a perspective exploded view of the plug according to Fig. 2,

[0066] Fig. 8 is a perspective view of a contact element of the plug according to Fig. 1,

[0067] Fig. 9 is a side view of the contact element according to Fig. 8 seen in direction IX,

[0068] Fig. io is a front view of the contact element according to Fig. 8 seen in direction X,

[0069] Fig. ii is a plan view of the contact element according to Fig. 8 seen in direction XI,

[0070] Fig. 12 is an exploded perspective view of the contact element according to Fig. 8,

[0071] Fig. 13 is a perspective view of a busbar system according to the invention with the plug according to the invention according to Fig. 1,

[0072] Fig. 14 is a front view of the busbar system according to Fig. 13 seen in direction XIV,

[0073] Fig. 15 is a perspective view of the busbar system according to Fig. 13 with the plug attached in the mounting position,

[0074] Fig. 16 is a front view of the busbar system according to Fig. 15 seen in direction XVI,

[0075] Fig. 17 is a front view of the busbar system according to Fig. 16 in sectional view,

[0076] Fig. 18 is a side sectional view of the busbar system according to Fig. 15,

[0077] Fig. 19 is a perspective view of the busbar system according to Figs. 13 and 15 with the plug attached in the contacting position, Fig. 20 is a front view of the busbar system according to Fig. 19 seen in the direction XX,

[0078] Fig. 21 is a front view of the busbar system according to Fig. 20 in sectional view,

[0079] Fig. 22 is a side sectional view of the busbar system according to Fig. 19, and

[0080] Fig. 23 is a perspective view of another busbar system according to the invention with two plugs according to the invention according to Fig. 1 connected via electrical cables to form an electrical connector for two busbars also shown here.

[0081] The figures show an embodiment of a plug 1 according to the invention for electrically connecting electrical cables K to a busbar 110, as well as embodiments of a busbar system 100 comprising this plug 1 and the busbar 110, and components thereof.

[0082] The connector 1 has a carrier 2. The carrier 2 can be seen in all figures and is particularly evident in the exploded views of Figures 6 and 7, as is also the case for the other components of the connector 1 below.

[0083] The support 2 preferably has a U-shape, as can be seen in particular in Figures 6 and 7. The support 2 can have two opposite side walls 21, 22 and preferably a connecting leg 23 connecting the side walls 21, 22.

[0084] The carrier 2 preferably has a grounding contact section 24, which here, for example, protrudes laterally outward with respect to the fastening direction R. This is particularly evident from Figures 1 to 7 as well as 16 and 20.

[0085] The carrier is preferably made of an electrically conductive material; this is particularly preferred when the carrier 2 serves as a grounding contact or has the grounding contact section 24. The carrier 2 is preferably made of sheet metal; for example, in a stamping and bending process.

[0086] The plug 1 further comprises a housing 3, which is attached to the carrier 2. This can be seen, for example, in the perspective views of Figures 1 and 2 and the exploded views of Figures 6 and 7. The housing 3 is preferably received between the side walls 21, 22.

[0087] The plug 1 further comprises a plurality of contact elements 4 for electrically connecting the electrical cables K and for electrically contacting the busbar 110. These contact elements 4 can be clearly seen in particular in the illustrations of Figures 8-12, the exploded views of Figures 6 and 7, and the sectional views of Figures 17 and 21.

[0088] The contact elements 4 are mounted in the housing 3 such that, for each contact element 4, an electrical contact section 40 protrudes from the housing 3 for electrical contacting with the busbar 110 at least in one contacting position in the fastening direction R. This can be seen in particular from the front views of Figures 3, 14, 16, 17, 20, and 21, as well as from the side sectional views of Figures 18 and 22.

[0089] As can also be seen from the aforementioned figures, the contact elements 4 and / or the contact sections 40 are arranged parallel to one another. In the exemplary embodiment shown here, the contact sections 40 are preferably arranged next to one another in a row transversely or perpendicularly to the fastening direction R. The contact sections 40 arranged next to one another in a row can protrude alternately more or less in the fastening direction R.

[0090] In the exemplary embodiment shown here, the contact elements 4 are each accommodated in a shaft 7 of the housing 3, wherein the shafts 7 each have a passage opening 70, seen in the fastening direction R, through which the contact sections 40 (can) protrude from the housing 3 in the fastening direction B.

[0091] Each of the contact elements 4 can preferably have a contact carrier 41, as can be seen particularly in the illustrations of Figures 8-12. The contact carrier 41 is arranged to be movable relative to the associated contact section 40 along the fastening direction R. The contact carrier 41 and the contact section 40 are electrically connected to one another in each of their relative movement positions. For this purpose, the contact carrier 41 has, for example, a U-shaped recess 410, which is particularly clearly visible in Figure 9, into which the contact section 40 projects with a projecting web section 400. The web section 400 rests laterally in the movement direction or the fastening direction R in the side sections of the contact carrier 41 that delimit the recess 410; here by means of defined contact projections 402.A spring element 5 can preferably be arranged between the contact carrier 41 and the contact section 40, which urges the contact carrier 41 and the contact section 40 away from each other; thus along the fastening direction B (cf., for example, Figures 8-12). The spring element 5 can comprise or be a spiral spring. The spiral spring is arranged or plugged onto mutually facing pins 401, 411 on the one hand of the contact section 40 and on the other hand of the contact carrier 41 and is thus securely held between the contact section 40 and the contact carrier 41. The pin 411 of the contact carrier 41 preferably projects into its recess 410. The arrangement of the spring element 5 can be seen in particular in Figures 9 and 12.

[0092] Each of the contact elements 4 can preferably have at least one, and here preferably two, conductor terminal connections L for connecting an electrical cable K. The housing 3 (here preferably a movable part 31 of the housing 3, described below) can have a conductor insertion channel 36 for each conductor terminal connection L, via which the respective cable K has external access to the associated conductor terminal connection L. The conductor terminal connection(s) L is / are electrically connected to the associated contact section 40; this is preferably done via the previously described contact carrier 41, as described below. Each of the conductor terminal connections L can have an electrical contact region 412 of the contact carrier 41 and a clamping spring 42 pressing towards the contact section 40, which form a conductor clamping point S between them.

[0093] The clamping springs 42 of the same contact carrier 41 can preferably be formed integrally with one another. This is particularly evident in Figures 8-12 (particularly in Figure 12), where the corresponding clamping springs 42 are shown as a single piece. The clamping springs 42 are each provided as U-shaped spring elements, which are fastened here on top of the contact carrier 41 (for example, by means of rivets 43), then extend via a retaining leg 420, a spring arch 421, into a free clamping leg, and terminate at their distal end in a clamping edge 423, which, by bearing against the contact area 412, presses into contact to form the conductor clamping point S.

[0094] The clamping springs 42 are preferably made of steel, and particularly preferably of spring steel. The contact section 40 is preferably made of bronze or copper. The contact carrier 41 is also preferably made of bronze or copper.

[0095] The plug 1 also has at least one or more coupling sections 20, 38 for fastening the plug 1 in a fastening direction R relative to the busbar 110 in the busbar system 100. In the exemplary embodiments illustrated here, the plug has a total of six coupling sections 20, 38, with the carrier 2 having four of the coupling sections 20 and the housing 3 having two of the coupling sections 38. The coupling sections 38 of the housing 3 serve here, for example, for direct fastening to the busbar 100, while the coupling sections 20 of the carrier 2 serve here, for example, for fastening to a support profile 120 supporting the busbar 110 and thus for indirect fastening to the busbar 110.

[0096] The connector 1 further comprises an actuating mechanism 6, by means of which the plurality of contact elements 4 can be moved relative to the coupling sections 20, 38 (here preferably at least relative to the carrier 2) selectively from a mounting position (cf. Figures 1-7 and 13-18 and 23) in the fastening direction R into the contacting position (cf. Figures 19-22). The contact sections 40 can protrude from the housing 3 in the fastening direction B only in the contacting position, or even already in the mounting position. In order to prevent the contact elements 4 or the contact sections 40 from falling out of the housing 3 or the shafts 7 via the through-opening 70, a stop or stop section 71 can be provided in the housing 3 (here in the respective shaft 7 in the region of the through-opening 70), against which the contact elements 4 or the contact section 40 can be supported or rest in the fastening direction B.This facilitates the handling of the contact elements 4. The stop section 71 can be encompassed by a recess section (here a U-shaped recess section) 44 of the contact element 4 or here the contact section 40, which allows sufficient mobility of the contact element 4.

[0097] The housing 3 can have a fixing part 30, which is connected to the carrier 2 and fixed relative to the carrier 2 in order to form a carrier part T together with the carrier 2. In this case, the side walls 21, 22 can preferably have first locking structures 25 (here, for example, recesses or through-openings), with which second locking structures 35 (here, for example, projections) of the fixing part 30 interact to form the carrier part T, as can be seen, for example, from the combination of Figures 1 and 6. The carrier part T can preferably have the coupling sections 20, 38; here preferably both the carrier 2 with its coupling sections 20 and the fixing part 30 of the housing 3 with its coupling sections 38. Thus, the carrier 2 can have at least a part of the coupling sections 20 and / or the housing 3 - preferably its fixing part 30 - at least a part of the coupling sections 38.

[0098] The housing 3 further preferably has a movable part 31 which, as part of the actuating mechanism 6, is mounted on the carrier part T (here, for example, on the fixing part 30) so as to be movable along the fastening direction R in order to selectively move the plurality of contact elements 4 from the mounting position into the contacting position. In this case, one of the movable part 31 and the carrier part T (here, for example, the fixing part 30) can preferably have a projection section 32, and the other of the movable part 31 and the carrier part T (here, for example, the fixing part 30) can have a rail section 33. The rail section 33 preferably extends parallel to the fastening direction R. The projection section 32 can then be slidably mounted in the rail section 33 for a defined movement between the mounting position and the contacting position.arranged in a leading manner, as can be deduced, for example, from the exploded views in Figures 6 and 7.

[0099] The fixing part 30 and the movable part 31 can preferably at least partially accommodate and support the plurality of contact elements 4 between them, as can be seen in particular from the sectional views of Figures 17 and 21. As can also be seen from these views, the connecting leg 23 can span the housing 3—and here particularly preferably the movable part 31—on a side facing away from the contact sections 40.

[0100] The coupling section(s) 20 of the carrier 2 can preferably be provided at distal ends of the side walls 21, 22 with respect to the connecting leg 23 for the locking fastening of the plug 1 relative to or directly on the busbar 110 in the busbar system 100, as can be seen by way of example in Figures 1 and 2 as well as in the sectional views of Figures 17 and 21 in the fastened position of the plug 1.

[0101] The actuating mechanism 6 can have a translationally and / or rotationally movable actuating part 60, which interacts with the plurality of contact elements 4 or with the movable part 31 of the housing 3 in such a way that, when the actuating part 60 is moved, the plurality of contact elements 4 can be selectively moved from the mounting position to the contacting position and, if necessary, back again. In the exemplary embodiment illustrated here, a rotationally movable actuating part 60 is present. This has an actuating lever 60 that can be rotated about a rotation axis X, as can be seen in particular in the exploded views of Figures 6 and 7, as well as in all other figures.

[0102] The actuating lever 60 preferably has a manipulation section 61 for manually rotating the actuating lever 60 about the rotation axis X. The rotational movement about the rotation axis X can be seen, for example, from a synopsis of Figures 15 and 19 or 18 and 22. The manipulation section 61 preferably protrudes in the mounting position on a side of the plug 1 facing away from the contact sections 40, counter to the fastening direction R, as can be seen in particular from Figures 1, 3, 13-18 and 23. In particular, with reference to Figures 15-18, it can be seen that the manipulation section 61 protrudes in the mounting position in such a way that it blocks an installation location for an electrical load of the busbar system 100 described below.In this way, it can be ensured that in the assembly position—i.e., when contact sections 40 are not yet fully electrically contacted—the installation of further components into the busbar system 100 is not possible. This prevents electrical loads from being connected to the connector 1 and integrated into the busbar system 100 before it has been properly secured and contacted.

[0103] The actuating part, or here the actuating lever 60, can be locked in the mounting position; for example, with the carrier part T. Thus, for example, the actuating part 60 can lock in the mounting position with corresponding locking structures 66 (here, for example, a projection section) with corresponding locking structures 26 (here, for example, a preferably punched recess) of the carrier 2, in order to be securely held in the mounting position.

[0104] The actuating lever 60 preferably has a bearing shaft section 62, as is particularly clearly visible in the exploded views of Figures 6 and 7 as well as in the side sectional views of Figures 18 and 19. The bearing shaft section 62 can, as shown here, be rotatably mounted in the carrier 2 or, here preferably, in the side walls 21, 22 of the carrier 2. For this purpose, as is particularly evident from Figures 6 and 7, the side walls 21, 22 can have corresponding vertical longitudinal slots 210, 220, which open into bearing sections 211, 221, into which the bearing shaft section 62 can be inserted via the longitudinal slots 210, 220 and rotatably mounted there. Alternatively or additionally, it is also conceivable for the bearing shaft section 62 to be rotatably mounted in the housing 3.

[0105] In a preferred embodiment, the bearing shaft section 62 extends between the carrier 2 - preferably its connecting leg 23 - and the movable part 31, as can be seen in particular from the sectional views of Figures 17, 18, 21 and 22.

[0106] As can be seen from the above-mentioned sectional views, the

[0107] The actuating lever 60 or its bearing shaft section 62 has a cam section 63 which projects radially with respect to the rotation axis X in order to cooperate with the plurality of contact elements 4 or the movable part 31 of the housing 3 to move the plurality of contact elements 4 from the mounting position into the contacting position when the actuating lever 60 is moved about the rotation axis X. Thus, by simply actuating the actuating lever 60, the latter can be rotated with the bearing shaft section 62 about its rotation axis X. As a result of this rotation, the cam section 63 is then extended downward due to the rotational movement (cf. the transition from Figures 18 to 22). As a result, the cam section 63 presses onto the movable part 31 from above and presses it in the fastening direction R - here downwards. Together with the movable part 31, the plurality of contact elements 4 are also pushed accordingly in the fastening direction R.In this case, the contact carrier 41 with the movable part 31 is moved downwards and consequently pushes the contact section 40 via the spring element 5 also in the fastening direction R and thus into secure physical and consequently electrical contact with a busbar 110 to be connected, as will be described below.

[0108] In the contacting position, the actuating part 60 preferably extends in a plane oriented perpendicular to the fastening direction R, as can be seen by way of example in Figures 19-22.

[0109] The actuating part 60 can preferably run substantially flush with the carrier 2 in the contacting position, viewed in a direction perpendicular to the fastening direction R, on an outer side A of the plug 1 facing away from the contact sections 40. In the exemplary embodiment illustrated here, as can be seen, for example, from the illustrations in Figures 19-22, it is also conceivable for the actuating part 60 to be arranged set back from the outer side A in the fastening direction R in the contacting position with respect to an outer side A of the plug 1 facing away from the contact sections 40.

[0110] The actuating part, or here the actuating lever 60, can be latched in the contacting position; for example, with the carrier part T. Thus, for example, the actuating part 60 can latch in the contacting position with corresponding latching structures 67 (here, for example, a first latch) with corresponding latching structures 37 (here, for example, a second latch) of the housing 3, in order to be securely held in the contacting position.

[0111] Figures 13-23 all show busbar systems 100 according to the invention. These have, on the one hand, the plug 1 already described. Furthermore, the busbar system 100 has a busbar 110 extending longitudinally along an extension axis E with a plurality of electrical conductors extending parallel to the extension axis E.

[0112] The plug i can be connected to the busbar 110 in the fastening direction R in such a way that the plug i is fastened with its coupling section(s) 20 (here with its four coupling sections 20 of the carrier 2 and its two coupling sections 38 of the fixing part 30) to corresponding counter-coupling sections 101, 113 of the busbar system 100 relative to the busbar 110, as can be clearly seen in particular from the sectional views of Figures 17 and 21. In the fastened position (cf., for example, Figures 15-18), the plurality of contact elements 4 can then be moved (here, for example, preferably simultaneously or jointly) by means of the actuating mechanism 6 from the mounting position into the contacting position in such a way that each of the electrical contact sections 40 is at least in the contacting position (and if necessaryalso already in the mounting position; but then weaker) is in direct physical and electrical contact with one of the electrical conductors 111, as can be seen in particular from Figures 19-22.

[0113] The busbar system 100 can further comprise a support profile 120 extending longitudinally along the extension axis E. The support profile 120 supports the busbar 110. For this purpose, the busbar 110 can, for example, be snapped into a corresponding profile 121 of the support profile 120. The support profile 120 is preferably designed such that it completely accommodates or can accommodate both the busbar 110 and the attached plug 1 in the contacting position, as can be seen from Figures 19-22.

[0114] The support profile 120 preferably has the one or more or at least some of the counter-coupling sections 101. The support profile 120 can preferably have a receiving groove 122 extending parallel to the extension axis E on each side of the busbar 110, which forms the one or more or at least some of the counter-coupling sections 101. These counter-coupling sections 101 are, for example, in a locking connection with the coupling sections 20 of the carrier 2.

[0115] The busbar 110 can also have at least some of the counter-coupling sections 113, as can be seen, for example, in Figures 14, 16, 17, 20, and 21. These counter-coupling sections 113 are, for example, in a locking connection with the coupling sections 38 of the fixing part 38. The support profile 120 can have a U-shaped cross-sectional profile that is open on the side opposite the busbar 110, as shown in Figures 13-23.

[0116] The busbar 110 can, as shown, have a plurality of grooves 112 lying next to one another and extending parallel to the extension axis E, each of which receives one of the electrical conductors 111, and via which one of the contact sections 40 of the attached plug 1 engages in the contacting position for direct physical and electrical contacting of the respective electrical conductor 111 (see in particular the sectional views of Figures 17 and 21).

[0117] The grooves 112 arranged side by side in a row can preferably alternately have a depth up to the respective electrical conductor 111 of depth C and depth D, wherein depth C is greater than depth D (cf. Fig. 14).

[0118] A method for producing a busbar system 100 according to the invention is described below.

[0119] First, a plug 1 according to the invention and a busbar 110 are provided. Preferably, the busbar 110 is received in a corresponding support profile 120. Then, the plug 1 is placed in the mounting position in the fastening direction R onto the busbar 110, so that the coupling sections 20, 38 are fastened to the corresponding counter-coupling sections 101, 113—here by means of a snap-in connection. With the plug 1 fastened in this position, the actuating mechanism 6 is then actuated; here, by moving the actuating lever 60 from the vertical position to the horizontal position. In this case, the actuating lever 60 is rotated about the rotation axis X.In this way, the cam section 63 is extended downward and presses on the movable part 31, which in turn presses the contact elements 4—here via the movable part 31—from the contacting position into the fastening position downward (i.e., in the fastening direction R) onto the busbar 110. By means of the spring element 5, the contact sections 40 are preferably pressed in the fastening direction R onto the electrical conductors 111 and thus securely held in direct physical and electrical contact. The plug 1 connected in this way can then serve, for example, as a feed-in or feed-out for the busbar system 100 and / or for connecting electrical loads and / or as an electrical connector 140.

[0120] The stowed operating lever 60 preferably frees up the space above the connector 1, so that corresponding electrical loads can now be integrated into the busbar system 100. The electrical loads can, for example, be electrically connected—for example, via the conductor terminals L—to the connector i and thus to the busbar 110. The space freed up above the connector i allows the correspondingly electrically connected electrical loads to be placed above the connector i in a space-saving manner. For this purpose, the electrical loads (not shown) can, for example, be attached to the support profile 120.

[0121] As can be seen from Fig. 23, it is also conceivable for the busbar system 100 to have two of the busbars 110, which are preferably each arranged in a separate support profile 120 or, alternatively, together in the same support profile 120. In the exemplary embodiment shown here, the two support profiles 120 can be mechanically connected by means of a mechanical connector 130. The plugs 1 of the respective busbars 110 can be or will be directly connected to one another by means of cables K. Thus, the connection of two (or more) plugs 1 together with connecting cables K can serve as an electrical connector 140 between several (here two) busbars 110. The plugs 1 are each connected to one of the adjacent busbars 110, as described above.

[0122] The present invention is not limited to the embodiments described above, as long as it is encompassed by the subject matter of the following claims.

Claims

Claims 1. Connector (i) for electrically connecting electrical cables (K) to a busbar (110), comprising: • a carrier (2), • a housing (3) which is attached to the carrier (2), • coupling sections (20, 38) for fastening the plug (1) in a fastening direction (B) relative to a busbar (110) in a busbar system (100), • a plurality of contact elements (4) for electrically connecting the electrical cables (K) and for electrically contacting the busbar (110), wherein the contact elements (4) are mounted in the housing (3) in such a way that for each contact element (4) an electrical contact section (40) for electrically contacting the busbar (110) protrudes from the housing (3) at least in one contacting position in the fastening direction (B), and • an actuating mechanism (6) by means of which the plurality of contact elements (4) can be selectively moved relative to the coupling sections (20, 38) from a mounting position in the fastening direction (B) into the contacting position.

2. Plug (1) according to claim 1, wherein the housing (3) comprises: • a fixing part (30) which is connected to the carrier (2) and fixed relative to the carrier (2) to form a carrier part (T) together with the carrier (2), and • a movable part (31) which, as part of the actuating mechanism (6), is mounted on the carrier part (T) so as to be movable along the fastening direction (B) in order to selectively move the plurality of contact elements (4) from the mounting position into the contacting position.

3. Plug (1) according to the preceding claim, wherein the carrier part (T) has the coupling sections (20, 38).

4. Plug (1) according to one of the two preceding claims, wherein one of the movable part (31) and the support part (T) has a projection portion (32), and the other of the movable part (31) and the support part (T) has a rail portion (33) which extends parallel to the fastening direction (B) and in which the projection portion (32) for the defined movement is arranged to slide between the mounting position and the contacting position.

5. Plug (1) according to one of the preceding claims, wherein the fixing part (30) and the movable part (31) at least partially accommodate and support the plurality of contact elements (4) between them.

6. Plug (1) according to one of the preceding claims, wherein the housing (3), preferably its fixing part (30) if present, has at least a part of the coupling sections (38), preferably for fixing the plug (1) in the fixing direction (B) to the busbar (110).

7. Plug (1) according to one of the preceding claims, wherein the carrier (2) has a U-shape.

8. Plug (1) according to one of the preceding claims, wherein the carrier (2) has two opposite side walls (21, 22) between which the housing (3) is received.

9. Plug (1) according to claims 2 and 8, wherein the side walls (21, 22) have first locking structures (25) with which second locking structures (35) of the fixing part (30) cooperate to form the carrier part (T).

10. Plug (1) according to one of the two preceding claims, wherein the carrier (2) further comprises a connecting leg (23) connecting the side walls (21, 22) and spanning the housing (3) and preferably, if present, the movable part (31) on a side facing away from the contact sections (40).

11. Plug (1) according to the preceding claim, wherein the carrier (2) has at least some of the coupling sections (20), wherein these coupling sections (20) are provided at distal ends of the side walls (21, 22) with respect to the connecting leg (23) for the locking fastening of the plug (1) relative to the busbar (110) in the busbar system (100).

12. Plug (1) according to one of the preceding claims, wherein the carrier (2) has an earthing contact section (24) which preferably projects laterally outwards with respect to the fastening direction (B). 13- Plug (i) according to one of the preceding claims, wherein the actuating mechanism (6) has a translationally and / or rotationally movable actuating part (60) which cooperates with the plurality of contact elements (4) or, if present, with the movable part (31) of the housing (3) in such a way as to selectively move the plurality of contact elements (4) from the mounting position into the contacting position when the actuating part (60) is moved.

14. Plug (1) according to the preceding claim, wherein the rotationally movable actuating part (60) has an actuating lever (60) rotatable about a rotation axis (X).

15. Plug (1) according to the preceding claim, wherein the operating lever (60) has a manipulation section (61) for manually rotating the operating lever (60) about the rotation axis (X).

16. Plug (1) according to the preceding claim, wherein the manipulation section (61) in the mounting position protrudes on a side of the plug (1) facing away from the contact sections (40) in the opposite direction to the fastening direction (B).

17. Plug (1) according to one of the preceding claims 14 to 16, wherein the actuating lever (60) has a bearing shaft portion (62) which is rotatably mounted in the carrier (2), preferably in the side walls (21, 22), and / or in the housing (3).

18. Plug (1) according to claims 2, 10 and 17, wherein the bearing shaft portion (62) extends between the connecting leg (23) and the movable part (31).

19. Plug (1) according to one of the preceding claims 14 to 18, wherein the actuating lever (60) or, if present, the bearing shaft section (62) has a cam section (63) which projects radially with respect to the axis of rotation (X) in order to cooperate with the plurality of contact elements (4) or the movable part (31) of the housing (3) for moving the plurality of contact elements (4) from the mounting position into the contacting position when the actuating lever (60) is moved about the axis of rotation (X).

20. Plug (i) according to one of the preceding claims 13 to 19, wherein the actuating part (60) in the contacting position extends in a plane oriented perpendicular to the fastening direction (B), and / or wherein the actuating part (60) in the contacting position runs substantially flush with the carrier (2) on an outer side (A) of the plug (1) facing away from the contact sections (40), viewed in a direction perpendicular to the fastening direction (B), and / or wherein the actuating part (60) in the contacting position is arranged set back from the outer side (A) in the fastening direction (B) with respect to an outer side (A) of the plug (1) facing away from the contact sections (40).

21. Plug (1) according to one of the preceding claims, wherein the contact elements (4) and / or the contact sections (40) are arranged parallel to one another.

22. Plug (1) according to one of the preceding claims, wherein the contact sections (40) are arranged next to one another in a row transversely or perpendicularly to the fastening direction (B).

23. Plug (1) according to the preceding claim, wherein the contact sections (40) arranged side by side in a row protrude alternately more and less in the fastening direction (R).

24. Plug (1) according to one of the preceding claims, wherein each of the contact elements (4) has a contact carrier (41) which is arranged to be movable relative to the associated contact section (40) along the fastening direction (B), wherein the contact carrier (41) and the contact section (40) are electrically connected to one another in each of their relative movement positions.

25. Plug (1) according to the preceding claim, wherein a spring element (5) is arranged between the contact carrier (41) and the contact section (40), which spring element urges the contact carrier (41) and the contact section (40) away from each other.

26. Plug (1) according to the preceding claim, wherein the spring element (5) comprises a spiral spring. .'j. Plug (i) according to one of the preceding claims, wherein each of the contact elements (4) has at least one and preferably two conductor clamping terminals (L) for connecting an electrical cable (K), wherein the conductor clamping terminal(s) (L) is / are electrically connected to the associated contact section (40).

28. Plug (1) according to claims 24 and 27, wherein each of the conductor clamping terminals (L) has an electrical contact area (412) of the contact carrier (41) and a clamping spring (42) urging towards the contact section (40), which form a conductor clamping point (S) between them.

29. Plug (1) according to the preceding claim, wherein the clamping springs (42) of the same contact carrier (41) are formed integrally with one another.

30. Plug (1) according to one of the two preceding claims, wherein the clamping springs (42) are made of steel, preferably of spring steel.

31. Plug (1) according to one of the preceding claims, wherein the carrier (2) is made of an electrically conductive material, and / or wherein the carrier (2) is made of a sheet metal, and / or wherein the electrical contact portion (40) is made of bronze or copper.

32. Busbar system (100), comprising: • a plug (1) according to one of the preceding claims, and • a busbar (110) extending longitudinally along an extension axis (E) with a plurality of electrical conductors (111) extending parallel to the extension axis (E), wherein the plug (1) can be connected to the busbar (110) in the fastening direction (B) in such a way that the plug (1) is fastened with its coupling sections (20, 38) to counter-coupling sections (101, 113) of the busbar system (100) relative to the busbar (110), and wherein in the fastened position the plurality of contact elements (4) can be moved by means of the actuating mechanism (6) from the mounting position into the contacting position in such a way that each of the electrical contact sections (40) is in direct physical and electrical contact with one of the electrical conductors (111) at least in the contacting position. 33- Busbar system (too) according to the preceding claim, further comprising a support profile (120) which extends longitudinally along the extension axis (E) and which supports the busbar (110), wherein the support profile (120) preferably completely accommodates the busbar (110) and the fastened plug (1) in the contacting position.

34. Busbar system (100) according to the preceding claim, wherein the support profile (120) has at least a part of the counter-coupling sections (101), wherein the support profile (120) preferably has on both sides of the busbar (110) a receiving groove (122) extending parallel to the extension axis (E), which forms at least a part of the counter-coupling sections (101).

35. Busbar system (100) according to one of the two preceding claims, wherein the support profile (120) has a U-shaped cross-sectional profile open on the side opposite the busbar (110).

36. Busbar system (100) according to one of claims 32 to 35, wherein the busbar (110) has at least a part of the counter-coupling sections (113).

37. Busbar system (100) according to one of claims 32 to 36, wherein the busbar (110) has a plurality of grooves (112) lying next to one another and extending parallel to the extension axis (E), each of which receives one of the electrical conductors (111), and via which one of the contact sections (40) of the fastened plug (1) engages in the contacting position for direct physical and electrical contacting of the respective electrical conductor (111).

38. Busbar system (100) according to the preceding claim, wherein the grooves (112) arranged side by side in series alternately have a depth down to the respective electrical conductor (111) of depth C and depth D, wherein depth C > depth D.

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