Mounting assembly for mounting a busbar

Abstract

The invention relates to a mounting assembly (1) for mounting a busbar (3), wherein the mounting assembly (1) has a first holder (5), a second holder (7), and the busbar (3); the first holder (5) and the second holder (7) are designed to be secured at mutually spaced positions on a wall; the busbar (3) has a first form-fitting element (9) and a second form-fitting element (11); the first holder (5) has a first mating form-fitting element (13), and the second holder (7) has a second mating form-fitting element (15); the first form-fitting element (9) and the first mating form-fitting element (13) are designed to interact in order to hold the busbar (3) on the first holder (5); and the second form-fitting element (11) and the second mating form-fitting element (15) are designed to interact in order to hold the busbar (3) on the second holder (7).

Description

[0001] Daimler Truck AG Michael Lierheimer 18.02.2026

[0002] Mounting arrangement for mounting a busbar

[0003] The invention relates to a mounting arrangement for mounting a busbar, in particular in a motor vehicle.

[0004] The installation of busbars is generally difficult, especially under confined installation space conditions, such as those found in motor vehicles.

[0005] In particular, two holes typically need to be drilled precisely at the same time, which is extremely difficult in tight spaces and with the required protective clothing.

[0006] The invention is therefore based on the objective of creating a mounting arrangement for mounting a busbar, whereby the aforementioned disadvantages are at least reduced, preferably avoided.

[0007] The problem is solved by providing the present technical teaching, in particular the teaching of the independent claims as well as the preferred embodiments disclosed in the dependent claims and the description.

[0008] The problem is solved in particular by providing a mounting arrangement for mounting a busbar, wherein the mounting arrangement comprises a first holder, a second holder and the busbar, wherein the first holder and the second holder are arranged to be attached at spaced-apart positions on a wall, wherein the busbar comprises a first positive locking element and a second positive locking element, wherein the first holder comprises a first counter-positive locking element and the second holder comprises a second counter-positive locking element, wherein the first positive locking element and the first counter-positive locking element are arranged to cooperate to hold the busbar on the first holder, and wherein the second positive locking element and the second counter-positive locking element are arranged to cooperate to hold the busbar on the second holder.Advantageously, the busbar can be easily and quickly, yet precisely, even under confined installation conditions, at least pre-fixed using the positive locking elements and counter-Daimler Truck AG 2 Michael Lierheimer 18.02.2026 positive locking elements, which enables considerable time savings in assembly.

[0009] In one embodiment, the busbar has a plurality of first positive locking elements. Alternatively or additionally, the first holder has exactly one first counter-positive locking element. However, it is also possible that the busbar has exactly one first positive locking element, and / or that the first holder has a plurality of first counter-positive locking elements.

[0010] In one embodiment, the busbar has a plurality of second positive locking elements. Alternatively or additionally, the second holder has exactly one second counter-positive locking element. However, it is also possible that the busbar has exactly one second positive locking element, and / or that the second holder has a plurality of second counter-positive locking elements.

[0011] The wall is preferably a wall of a vehicle component of a motor vehicle, in particular a truck or a bus. In particular, the wall can be part of a vehicle battery or traction battery of a motor vehicle, especially an electrically powered motor vehicle.

[0012] The busbar has the first positive locking element, particularly at a first mounting position. Furthermore, the busbar has the second positive locking element, particularly at a second mounting position spaced apart from the first mounting position.

[0013] Preferably, the first positive locking element and the first counter-positive locking element are configured and aligned to form a snap-fit ​​connection. Alternatively or additionally, and particularly additionally, the second positive locking element and the second counter-positive locking element are configured and aligned to form a snap-fit ​​connection.

[0014] In one embodiment, the first holder and the second holder are identical, in particular designed to be the same.

[0015] According to a further development of the invention, at least one first retaining element, selected from a group consisting of the first positive locking element, the second positive locking element, the first counter-positive locking element, and the second counter-positive locking element, is designed as a projection, wherein at least one second retaining element, different from the first retaining element and selected from the same group, is designed as a groove. This represents a design of the first and second retaining elements that is both simple and functionally reliable.

[0016] The projection and the groove are each designed and coordinated in such a way that the projection can engage in the groove – in particular in a latching manner.

[0017] In one embodiment, the first retaining element is designed as a detent projection. A detent projection is understood to be, in particular, a projection that is aligned with a groove, especially a detent groove, in such a way that the projection can engage in the groove, i.e., can latch into the groove.

[0018] Alternatively or additionally, the second retaining element is designed as a detent groove. Alternatively or additionally, the second retaining element is designed as a circumferential annular groove. A detent groove is understood to be, in particular, a groove that is aligned with a projection, especially a detent projection, in such a way that the projection can detent into the groove, i.e., engage in a detent-like manner.

[0019] In one embodiment, the first positive locking element is designed as a projection, in particular as a detent projection, and the first counter-positive locking element is designed as a groove, in particular a detent groove or a circumferential annular groove. Alternatively or additionally, in particular additionally, the second positive locking element is designed as a projection, in particular a detent projection, and the second counter-positive locking element is designed as a groove, in particular a detent groove or annular groove.

[0020] In another embodiment, the first counter-form-locking element is designed as a projection, in particular a detent projection, and the first form-locking element is designed as a groove, in particular a detent groove or a circumferential annular groove. Alternatively or additionally, in particular additionally, the second counter-form-locking element is designed as a projection, in particular a detent projection, and the second form-locking element is designed as a groove, in particular a detent groove or a circumferential annular groove.

[0021] According to a further development of the invention, the busbar has a first centering element and a second centering element, wherein the first holder has a first counter-centering element and the second holder has a second counter-centering element, wherein the first centering element and the first counter-centering element are configured to interact to position the busbar on the first holder, and wherein the second centering element and the second counter-centering element are configured to interact to position the busbar on the second holder. This advantageously allows for simple yet precise positioning, in particular centering, of the busbar on the holders.

[0022] The busbar has a first centering element, specifically at a first centering position. Furthermore, the busbar has a second centering element, specifically at a second centering position spaced apart from the first centering position.

[0023] Preferably, the first centering position is the first mounting position, meaning the busbar has the first centering element at the first mounting position. Alternatively or additionally, and especially additionally, the second centering position is the second mounting position, meaning the busbar has the second centering element at the second mounting position.

[0024] In particular, the first centering element and the first counter-centering element are configured to work together to center the busbar on the first holder. Alternatively or additionally, and especially additionally, the second centering element and the second counter-centering element are configured to work together to center the busbar on the second holder.

[0025] According to a further development of the invention, at least one first positioning element, selected from a group consisting of the first centering element, the second centering element, the first counter-centering element, and the second counter-centering element, is designed as a pin, wherein at least one second positioning element, different from the first positioning element and selected from the same group, is designed as a bushing or has two tabs. Advantageously, this represents a design of the first and second positioning elements that is both simple and reliable.

[0026] The pin and the bushing are preferably each designed and aligned such that the pin can engage in the bushing. Alternatively or additionally, the pin and the two tabs are each designed and aligned such that the pin can engage between the two tabs. Daimler Truck AG 5 Michael Lierheimer 18.02.2026 In one embodiment, the first counter-centering element is designed as a pin, and the first centering element is designed as a bushing or has two tabs. Alternatively or additionally, and in particular additionally, the second counter-centering element is designed as a pin, and the second centering element is designed as a bushing or has two tabs.

[0027] In another embodiment, the first centering element is designed as a pin, and the first counter-centering element is designed as a bushing or has two tabs. Alternatively or additionally, and in particular additionally, the second centering element is designed as a pin, and the second counter-centering element is designed as a bushing or has two tabs.

[0028] In one embodiment, the first counter-centering element and the second counter-centering element are the same, in particular identical, especially both as conical or cylindrical pins, and / or both as pins with flattened surfaces.

[0029] According to a further development of the invention, the first positive locking element is arranged on the first centering element. Advantageously, this allows for simple and reliable pre-fixing and positioning, in particular centering, to take place simultaneously and at the same location.

[0030] Alternatively or additionally, it is provided that the second positive locking element is arranged on the second centering element.

[0031] Alternatively or additionally, it is provided that the first counter-form-locking element is arranged on the first counter-centering element.

[0032] Alternatively or additionally, it is provided that the second counter-form-locking element is arranged on the second counter-centering element.

[0033] According to a further development of the invention, the first centering element is designed to be elastic, in particular spring-elastic, at least in the area of ​​the first positive locking element. This advantageously facilitates assembly and simultaneously leads to a secure and stable connection. Daimler Truck AG 6 Michael Lierheimer 18.02.2026 Alternatively or additionally, the second centering element is designed to be elastic, in particular spring-elastic, at least in the area of ​​the second positive locking element.

[0034] Alternatively or additionally, it is provided that the first counter-centering element - optionally at least in the area of ​​the first counter-form-locking element - is designed to be elastic, in particular spring-elastic.

[0035] Alternatively or additionally, it is provided that the second counter-centering element - optionally at least in the area of ​​the second counter-form-locking element - is designed to be elastic, in particular spring-elastic.

[0036] According to a further development of the invention, the at least one second positioning element has longitudinal slots such that at least two detent tongues are formed, distributed over a circumference of the second positioning element. Advantageously, this represents a simple and reliable way to provide an elastic – in particular, spring-elastic – design for the second positioning element.

[0037] Preferably, the bushing has the corresponding longitudinal slots.

[0038] The longitudinal slots are preferably evenly distributed around the circumference of the second positioning element, i.e., arranged at equal angular intervals from each other.

[0039] In one embodiment, the second positioning element, in particular the socket, has exactly six locking tongues preferably evenly distributed around the circumference.

[0040] In another embodiment, the second positioning element, in particular the bushing, has exactly two locking tabs, preferably evenly distributed around its circumference and, in particular, opposite each other. In this case, the locking tabs are specifically designed as tabs opposite each other perpendicular to a connection direction between the second positioning element and the first positioning element.

[0041] According to a further development of the invention, the at least one first positioning element is conical or cylindrical. A conical shape advantageously facilitates the insertion of the first positioning element into the second positioning element. A cylindrical shape advantageously improves positioning, particularly centering. Daimler Truck AG 7 Michael Lierheimer 18.02.2026

[0042] Preferably, the pin is conical or cylindrical.

[0043] Alternatively or additionally, it is provided that at least one first positioning element has a cavity designed for the placement of a threaded sleeve. Advantageously, the cavity can be used to fix the first positioning element to the second positioning element and thus simultaneously fix the busbar to the first or second holder.

[0044] In one embodiment, the cavity is a central or middle-positioned cavity.

[0045] In one embodiment, the cavity has an internal thread. Alternatively or additionally, a threaded sleeve is arranged in the cavity, preferably fastened, the threaded sleeve having an internal thread. Advantageously, in this way the first positioning element can be fixed to the second positioning element, and thus simultaneously the busbar to the first holder or to the second holder, by tightening a screw, in particular by screwing a screw into the internal thread, especially into the threaded sleeve.

[0046] Preferably, the pin has a cavity.

[0047] According to a further development of the invention, a component selected from a group consisting of the busbar, the first holder, and the second holder, which has at least one second positioning element, has a through-hole that is arranged coaxially to the second positioning element—and, in the assembled state, also to the first positioning element. Advantageously, the through-hole can be used to fix the component, in particular by passing a screw or bolt through the through-hole and then screwing it into the internal thread of the cavity.

[0048] In particular, the component containing the bushing has a through-hole arranged coaxially with the bushing. This allows the screw or bolt to advantageously pass through the through-hole and the bushing and then be screwed into the internal thread provided in the pin engaging the bushing to secure the component. Daimler Truck AG 8 Michael Lierheimer 18.02.2026 According to a further development of the invention, a gap is formed between the first positioning element and the second positioning element in the assembled state – or, in other words, in the plug-in position, i.e., when the positioning elements are inserted into one another. Advantageously, this gap provides clearance that allows for tolerance compensation.

[0049] In particular, the gap extends circumferentially. Here, circumferential direction is understood to mean a direction that concentrically encompasses the connection direction, that is, the direction in which the positioning elements are connected to each other by insertion.

[0050] According to a further development of the invention, a first component, selected from a group consisting of the busbar, the first holder, and the second holder, has two tabs opposite each other perpendicular to the connection direction, i.e., diametrically opposed – as the second positioning element – ​​wherein a second component, different from the first component and selected from the same group, has flat surfaces on its associated at least one first positioning element that are opposite each other perpendicular to the connection direction, on which the tabs are arranged – preferably with clearance – in the assembled state, and in particular bear against. Advantageously, the tabs and flat surfaces allow for simple assembly with tolerance compensation while simultaneously ensuring secure fixation.

[0051] The tabs opposite each other perpendicular to the direction of connection extend particularly in the direction of connection.

[0052] In one embodiment, the tabs are formed on the bushing or form the bushing itself. Alternatively or additionally, the pin has flattened sections that are opposite each other perpendicular to the direction of connection.

[0053] Preferably, the tabs are flat.

[0054] In one embodiment, the tabs – particularly at the ends – have the positive locking elements or the counter-positive locking elements.

[0055] In one embodiment, the busbar has tabs at one of the mounting positions, and the first or second holder has the pin with the flattened sections. Daimler Truck AG 9 Michael Lierheimer 18.02.2026

[0056] In one embodiment, the busbar has a socket at the first mounting position, formed by a plurality of – in particular exactly six – locking tabs distributed around its circumference, and it has tabs at the second mounting position. Alternatively or additionally, the first holder has a conical or cylindrical pin and the second holder has a pin with flattened sections. The holders – and correspondingly the counter-centering elements – can also be identical.

[0057] According to a further development of the invention, at least one holder, selected from the first holder and the second holder, has an anti-rotation device designed to secure the holder to the wall in a rotation-proof manner – in particular, to secure it. Advantageously, this allows for a simple and unambiguous positioning of the holder on the wall, ensuring this position is maintained during installation.

[0058] In one embodiment, both the first holder and the second holder have such an anti-rotation device.

[0059] The anti-rotation device is preferably formed by a guide projection which is spaced apart from the respective associated counter-form-locking element and is arranged on the holder on a side facing away from it.

[0060] In one embodiment, at least one holder, selected from the first holder and the second holder, has a mounting hole by means of which the holder can be attached to the wall. The mounting hole can, in particular, be designed as a through-hole.

[0061] Preferably, the fastening bore is arranged at a distance from the respective mating positive locking element. Furthermore, the fastening bore is preferably arranged at a distance from the respective guide projection.

[0062] The invention also includes a motor vehicle with an assembly arrangement according to the invention or an assembly arrangement according to one or more of the embodiments described above. In connection with the motor vehicle, the advantages are particularly those already explained in connection with the assembly arrangement. Daimler Truck AG 10 Michael Lierheimer 18.02.2026 In one embodiment, the motor vehicle is designed as a commercial vehicle, in particular as a truck or as a bus.

[0063] In one embodiment, the motor vehicle is an electrically powered motor vehicle.

[0064] The invention will be explained in more detail below with reference to the drawing. The drawing shows:

[0065] Figure 1 shows an embodiment of an assembly arrangement;

[0066] Figure 2 shows a first detailed representation of the assembly arrangement according to Fig. 1;

[0067] Figure 3 shows a second detailed view of the assembly arrangement according to Fig. 1;

[0068] Figure 4 shows a third detailed view of the assembly arrangement according to Fig. 1, and

[0069] Figure 5 shows a representation of a holder of the mounting arrangement according to Fig. 1.

[0070] Fig. 1 shows an embodiment of a mounting arrangement 1.

[0071] The mounting arrangement 1 is designed for mounting a conductor rail 3, in particular in a motor vehicle not shown here, for example a truck or bus.

[0072] The mounting arrangement 1 comprises a first holder 5, a second holder 7, and the busbar 3. The first holder 5 and the second holder 7 are designed to be attached to spaced-apart positions on a wall (not shown), namely the first holder 5 at a schematically indicated first position P1 and the second holder 7 at a schematically indicated second position P2. The busbar 3 has first positive locking elements 9 and second positive locking elements 11, and the first holder 5 has a first counter-positive locking element 13, with the second holder 7 having a second counter-positive locking element 15. The first positive locking elements 9 and the first counter-positive locking element 13 are designed to interact to hold the busbar 3 to the first holder 5.The second positive locking elements 11 and the second counter-positive locking element 15 are arranged to work together to hold the busbar 3 to the second holder 7.

[0073] The busbar 3 has the first positive locking elements 9, particularly at a first mounting position. Furthermore, the busbar 3 has the second positive locking elements 11, particularly at a second mounting position spaced apart from the first. Daimler Truck AG 11 Michael Lierheimer 18.02.2026 The first and second positive locking elements 9, 11 are designed here as projections, in particular as locking projections, while the first counter-positive locking element 13 and the second counter-positive locking element 15 are each designed as a groove, in particular as a locking groove or annular groove. The projections can each engage in the associated grooves or form a snap connection to pre-fix the busbar 3 to the holders 5, 7.

[0074] The busbar 3 preferably has a first centering element 17 and a second centering element 19, wherein the first holder 5 has a first counter-centering element 21 and the second holder 7 has a second counter-centering element 23. The first centering element 17 and the first counter-centering element 21 are configured to work together to position, and in particular center, the busbar 3 on the first holder 5. The second centering element 19 and the second counter-centering element 23 are configured to work together to position, and in particular center, the busbar 3 on the second holder 7.

[0075] The busbar 3 has the first centering element 17, in particular at a first centering position, which is preferably also the first mounting position. Furthermore, the busbar 3 has the second centering element 19, in particular at a second centering position spaced apart from the first centering position, which is preferably also the second mounting position.

[0076] The first positive locking elements 9 are arranged in particular on the first centering element 17, and the second positive locking elements 11 are arranged on the second centering element 19. In addition, the first counter-positive locking element 13 is preferably arranged on the first counter-centering element 21, and the second counter-positive locking element 15 is arranged on the second counter-centering element 23.

[0077] In the embodiment shown here, the first centering element 17 is designed as a bushing, and the first counter-centering element 21 is designed as a pin. The first centering element 17, designed as a bushing, has longitudinal slots 25 such that a plurality – in particular six – of detent tongues 27 are formed, evenly distributed around the circumference of the first centering element 17. The second centering element 19 has two tabs 29, 29' opposite each other perpendicular to a connection direction, and the second counter-centering element 23 is also designed as a pin. The tabs 29, 29' can themselves form a bushing. Daimler Truck AG 12 Michael Lierheimer 18.02.2026 The pin of the first counter-centering element 21 and the bushing of the first centering element 17 are preferably each designed and aligned such that the pin can engage in the bushing.Likewise, the pin of the second counter-centering element 23 can engage between the tabs 29, 29' of the second centering element 19.

[0078] The counter-centering elements 21, 23, designed as pins, are preferably conical or cylindrical. In the embodiment shown here, the first and second counter-centering elements 21, 23 are identical, in particular identical.

[0079] Preferably, the first and second holders 5, 7 are identical, in particular designed to be the same.

[0080] Fig. 2 shows a first detailed view of the assembly arrangement 1 according to Fig. 1 at the first position P1.

[0081] Identical and functionally equivalent elements are marked with the same reference symbols in all figures, so that reference is always made to the preceding description. Furthermore, for the sake of clarity, elements that appear multiple times in a figure are always marked with a reference symbol only once.

[0082] Figure 2 clearly shows that the first positive locking elements 9 are preferably arranged on the first centering element 17, which is designed as a bushing, in particular as radial, inwardly directed projections. The first counter-positive locking element 13, which is designed in particular as a circumferential annular groove, is arranged on the first counter-centering element 21, which is designed as a pin.

[0083] The first centering element 17, designed as a bushing, is elastic, in particular spring-elastic, at least in the area of ​​the first positive locking elements 9, due in particular to the longitudinal slots 25.

[0084] The first counter-centering element 21, designed as a pin, has a central or mid-sized cavity 31 in which a threaded sleeve 33 with an internal thread is arranged.

[0085] The busbar 3 has a through-hole 35 which is arranged coaxially to the first centering element 17 and, in the assembled state, also coaxially to the first counter-centering element 21. A screw or bolt can be passed through the through-hole 35 and then screwed into the threaded sleeve 33 to fix the busbar 3 to the first bracket 5.

[0086] Between the first counter-centering element 21 and the first centering element 17, in the assembled state - or in other words, in the plug-in position - a circumferentially extending gap 37 is formed, which allows for tolerance compensation.

[0087] Fig. 3 shows a second detailed view of the assembly arrangement 1 according to Fig. 1 at the second position P2.

[0088] The power rail 3, the second centering element 19 and the second counter-centering element 23 are shown, with the viewer's gaze directed in a connection direction between the second centering element 19 and the second counter-centering element 23, in which the second centering element 19 is placed onto the second counter-centering element 23.

[0089] This view clearly shows that the second counter-centering element 23, designed as a pin, has two flats 39, 39' opposite each other perpendicular to the connection direction. In the assembled state, the tabs 29, 29' are arranged with play on the flats 39, 39', which allows for easy assembly with tolerance compensation while simultaneously ensuring secure pre-fixation.

[0090] Fig. 4 shows a third detailed view of the assembly arrangement 1 according to Fig. 1, also at the second position P2.

[0091] Here it becomes clear that the tabs 29, 29' of the second centering element 19, which are opposite each other perpendicular to the connection direction, preferably extend in the connection direction. Furthermore, the tabs 29, 29' are preferably flat. In particular, the tabs 29, 29' have the second positive locking elements 11 – preferably at their ends.

[0092] The second centering element 19, comprising the tabs 29, 29', is preferably elastic, in particular spring-elastic, at least in the area of ​​the second positive locking elements 11. In particular, the tabs 29, 29' themselves are spring-elastic.

[0093] Furthermore, the second counter-centering element 23, preferably designed as a pin, also has the cavity 31 in which the threaded sleeve 33 is arranged. The busbar 3 also has the through-hole 35 at the second position P2, which here is arranged coaxially to the tabs 29, 29' and to the second counter-centering element 23, Daimler Truck AG 14 Michael Lierheimer 18.02.2026 so that a screw or bolt can also be passed through the through-hole 35 at this point and then screwed into the internal thread of the threaded sleeve 33 to fix the busbar 3 to the second holder 7.

[0094] Fig. 5 shows a representation of a holder 5, 7 of the mounting arrangement 1 according to Fig. 1

[0095] As already mentioned, holders 5 and 7 are identically designed here.

[0096] Each holder has an anti-rotation feature 41 designed to secure – in particular, to fasten – the respective holder 5, 7 to the wall. The anti-rotation feature 41 is preferably formed by a guide projection 43, which is spaced apart from the respective associated mating element 13, 15 and is located on the side of the respective holder 5, 7 facing away from it.

[0097] Furthermore, the holders 5, 7 preferably each have a mounting bore 45 by means of which they can be attached to the wall. The mounting bore 45 can in particular be designed as a through-hole. Preferably, the mounting bore 45 is arranged at a distance from the respective associated mating positive locking element 13, 15. Furthermore, the mounting bore 45 is preferably arranged at a distance from the respective guide projection 41.

[0098] Returning to Fig. 1, the busbar 3 is preferably first inserted into the first holder 5, which is already fixed in the wall, at the first position P1, thus pre-fixing and centering it. The first positive locking elements 9 then engage with the first counter-positive locking element 13. The gap 37 allows for freedom of movement, and tolerances can be compensated for. The busbar 3, thus pre-fixed on one side, is then inserted into the second holder 7, which is already fixed in the second position P2, and is therefore also pre-fixed and centered there, with the second positive locking elements 11 engaging with the second counter-positive locking element 15. The flat design of the tabs 29, 29' allows for the compensation of larger tolerances. Further busbars 3 can now be mounted according to the same principle.Finally, all required screws are inserted into the corresponding through holes 35 and tightened in the threaded sleeves 33, thereby fixing the busbar 3 – or, if applicable, the majority of busbars 3 – to the wall. Daimler Truck AG 15 Michael Lierheimer 18.02.2026.

[0099] Reference symbol list

[0100] 1 Assembly arrangement

[0101] 3 Power rail

[0102] 5 first owner

[0103] 7 second holders

[0104] 9 first positive locking elements

[0105] 11 second positive locking elements

[0106] 13 first counter-form locking elements

[0107] 15 second counter-form locking elements

[0108] 17 first centering element

[0109] 19 second centering element

[0110] 21 first counter-centering element

[0111] 23 second counter-centering element

[0112] 25 longitudinal slots

[0113] 27 locking tongues

[0114] 29, 29' tabs

[0115] 31 Cavity

[0116] 33 Threaded sleeve

[0117] 35 Through hole

[0118] 37 gap

[0119] 39, 39' Flattenings

[0120] 41 Anti-rotation device

[0121] 43 Leading lead

[0122] 45 Mounting holes

Claims

Daimler Truck AG 16 Michael Lierheimer 18.02.2026 Patent claims 1. Mounting arrangement (1) for mounting a busbar (3), wherein the mounting arrangement (1) comprises a first holder (5), a second holder (7) and the busbar (3), wherein the first holder (5) and the second holder (7) are configured to be attached at spaced-apart positions on a wall, wherein the busbar (3) comprises a first positive locking element (9) and a second positive locking element (11), wherein the first holder (5) comprises a first counter-positive locking element (13) and the second holder (7) comprises a second counter-positive locking element (15), wherein the first positive locking element (9) and the first counter-positive locking element (13) are configured to cooperate to hold the busbar (3) on the first holder (5), and wherein the second positive locking element (11) and the second counter-positive locking element (15) are configured to cooperate to hold the busbar (3) on the second holder (7).

2. Assembly arrangement (1) according to claim 1, wherein at least one first retaining element, selected from a group consisting of the first positive locking element (9), the second positive locking element (11), the first counter-positive locking element (13), and the second counter-positive locking element (15), is designed as a projection, wherein at least one second retaining element, different from the first retaining element and selected from the same group, is designed as a groove, in particular as an annular groove.

3. Mounting arrangement (1) according to one of the preceding claims, wherein the busbar (3) has a first centering element (17) and a second centering element (19), wherein the first holder (5) has a first counter-centering element (21) and the second holder (7) has a second counter-centering element (23), wherein the first centering element (17) and the first counter-centering element (21) are arranged to work together to position the busbar (3) on the first holder (5), and the second centering element (19) and the second counter-centering element (23) are arranged to work together to position the busbar (3) on the second holder (7).

4. Assembly arrangement (1) according to claim 3, wherein at least one first positioning element, selected from a group consisting of the first centering element (17), the second centering element (19), the first counter-centering element (21), and the second counter-centering element (23), is designed as a pin, wherein at least one second positioning element, selected from the same group and different from the first positioning element, is designed as a bushing.

5. Assembly arrangement (1) according to one of claims 3 or 4, wherein - the first positive locking element (9) is arranged on the first centering element (17), and / or - the second positive locking element (11) is arranged on the second centering element (19), and / or - the first counter-form-locking element (13) is arranged on the first counter-centering element (21), and / or - the second counter-form-locking element (15) is arranged on the second counter-centering element (23).

6. Assembly arrangement (1) according to one of claims 3 to 5, wherein - the first centering element (17), and / or - the second centering element (19), and / or - the first counter-centering element (21), and / or - the second counter-centering element (23) is elastically formed.

7. Assembly arrangement (1) according to one of claims 4 to 6, wherein the at least one second positioning element has longitudinal slots (25) such that at least two locking tongues (27) are arranged distributed over a circumference of the second positioning element.

8. Assembly arrangement (1) according to one of claims 4 to 7, wherein the at least one first positioning element is conical or cylindrical, and / or wherein the at least one first positioning element has a cavity (31) which is configured for arranging a threaded sleeve (33) in the cavity (31).

9. Mounting arrangement (1) according to any one of claims 4 to 8, wherein a component selected from a group consisting of the busbar (3), the first holder (5) and the second holder (7), which has at least one second positioning element, has a through-hole (35) which is arranged coaxially to the second positioning element. Daimler Truck AG 18 Michael Lierheimer 18.02.2026 10. Mounting arrangement (1) according to any one of claims 4 to 9, wherein a gap (37) is formed between the first positioning element and the second positioning element in the mounted state.

11. Assembly arrangement (1) according to one of claims 4 to 10, wherein a first component, selected from a group consisting of the busbar (3), the first holder (5) and the second holder (7), has two tabs (29, 29') opposite each other perpendicular to a connection direction, wherein a second component, different from the first component and selected from the same group, has flattened surfaces (39, 39') opposite each other perpendicular to the connection direction on the at least one first positioning element associated with it, on which the tabs (29, 29') are arranged in the assembled state.

12. Mounting arrangement (1) according to one of the preceding claims, wherein at least one holder (5, 7), selected from the first holder (5) and the second holder (7), has an anti-rotation device (41) which is configured to arrange the holder (5, 7) on the wall in a non-rotating manner.

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