Holder arrangement for a vehicle

The holder arrangement with a rotatably mounted compensating element simplifies vehicle wiring assembly by automatically adjusting to manufacturing tolerances, enhancing assembly efficiency and stability.

DE102024123751B4Active Publication Date: 2026-04-23LISA DRAXLMAIER GMBH
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
LISA DRAXLMAIER GMBH
Filing Date
2024-08-20
Publication Date
2026-04-23

AI Technical Summary

Technical Problem

The manual adjustment of mounting brackets for busbars in vehicle wiring systems due to manufacturing tolerances is complex and time-consuming, complicating the assembly process.

Method used

A holder arrangement with a rotatably mounted compensating element that automatically adjusts to form and positional tolerances between the wiring system's path and mounting points, allowing for easier and faster assembly without manual intervention.

Benefits of technology

The holder arrangement simplifies and accelerates the assembly process by compensating for manufacturing tolerances, ensuring a secure and interference-free fit of the wiring system without manual adjustment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a holder arrangement comprising a holder for attaching a conductor system with at least one busbar to at least one mounting point on a vehicle body, and a compensating element (21; 101; 201; 301) for receiving the conductor system, wherein the compensating element (21; 101; 201; 301) is rotatably mounted on the holder to compensate for form and / or positional tolerances between a conductor routing of the conductor system and the mounting point.
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Description

Technical field

[0001] The present invention relates to a holder arrangement for a vehicle. State of the art

[0002] A modern, electrically powered vehicle has a traction battery and a charging socket. The traction battery is electrically connected to the charging socket via a wiring harness. This harness includes two busbars and several mounting brackets that attach the busbars along their path to mounting points on the vehicle body or the traction battery. Due to manufacturing tolerances, variations in shape and / or position may occur between the busbars and the mounting points on the vehicle body. To compensate for these tolerances, the mounting brackets may be adjustable or adjustable at the mounting points on the vehicle body and, after installation, adjusted to the busbars' actual path by manually adjusting the brackets.Manual adjustment makes assembling the cable arrangement complex and time-consuming.

[0003] German patent DE 10 2023 106 348 A1 discloses a fastening device for a busbar. US patent 2013 / 0 104 494 A1 discloses a fastening system. Description of the invention

[0004] The object of the invention is therefore to provide a holder arrangement for a vehicle with which a piping system can be mounted more easily and quickly compared to the prior art.

[0005] This problem is solved by the features of the independent claim. Advantageous embodiments of the invention are specified in the dependent claims, the following description, and the figures.

[0006] The invention proposes a mounting arrangement comprising a holder for attaching a wiring system with at least one busbar to one or two or more mounting points on the body of a vehicle, and a compensating element for receiving the wiring system. The compensating element is rotatably mounted on the holder to compensate for form and / or positional tolerances between the wiring system's path and the mounting point. Due to the rotatable mounting of the compensating element on the holder, the compensating element automatically adapts to the actual path of the wiring system. Form and / or positional tolerances between the wiring system's path and the mounting point(s) are thus compensated for without any further intervention by a worker, such as manually adjusting a holder.Since no manual adjustment by, for example, a worker is required during the assembly of the piping system, the piping system is easier and faster to assemble compared to the state of the art.

[0007] In order to form the most compact possible holder arrangement, in which the cable system and the compensating element are protected from mechanical influences in the area of ​​the holder arrangement, it is provided, by way of example, that the holder limits a holder passage to the outside, and that the compensating element is arranged in the holder passage.

[0008] In order to achieve multi-axis tolerance compensation between the routing of the piping system and the holding point with the holder arrangement, it is preferably provided that the holder together with the compensating element, preferably essentially, forms a ball joint, wherein it is provided that the compensating element is rotatably mounted on the holder about its longitudinal axis and / or about its transverse axis and / or about its vertical axis.

[0009] In order to be able to absorb the weight of the cable system by means of the holder arrangement and to be able to transfer forces to the bodywork, in an exemplary embodiment it is provided that the compensating element is mounted on the holder in such a way that the position of the compensating element relative to the holder remains unchanged when rotating about the longitudinal axis and / or the transverse axis and / or the vertical axis.

[0010] In order to achieve the rotatable mounting of the compensating element with as few individual parts as possible, an exemplary embodiment provides that a first outer surface of the compensating element is at least partially formed by a first, preferably spherical segment-shaped, projection, and that a first inner surface of the holder, opposite the first outer surface, has a first, preferably spherical segment-shaped, recess, and that in the area of ​​the first recess, the first projection is slidably mounted on the first inner surface of the holder, and / or that a second outer surface of the compensating element is at least partially formed by a second, preferably spherical segment-shaped, projection, and that a second inner surface of the holder, opposite the second outer surface, has a second, preferably spherical segment-shaped, recess.and that in the area of ​​the second recess, the second protrusion is slidably mounted on the second inner surface of the holder.

[0011] In order to further support the compensating element on the holder, a preferred embodiment provides that an outer cover surface of the compensating element is at least partially formed by a third, preferably spherical segment-shaped, projection, and that an inner cover surface of the holder opposite the outer cover surface has a third, preferably spherical segment-shaped, recess, and that in the area of ​​the third recess the third projection is slidably mounted on the inner cover surface of the holder, and / or that an outer bottom surface of the compensating element is at least partially formed by a fourth, preferably spherical segment-shaped, projection, and that an inner bottom surface of the holder opposite the second outer surface has a fourth, preferably spherical segment-shaped, recess, and that in the area of ​​the fourth recess the fourth projection is slidably mounted on the inner bottom surface of the holder.

[0012] In order to enable interference-free, rotatable mounting of the compensating element around all three spatial directions, an exemplary embodiment provides that the base surface of the first, spherical segment-shaped elevation and the base surface of the second, spherical segment-shaped elevation each extend at a distance from each other and / or each at right angles to the transverse axis of the compensating element, and / or that the base surface of the third, spherical segment-shaped elevation and the base surface of the fourth, spherical segment-shaped elevation each extend at a distance from each other and / or each at right angles to the vertical axis of the compensating element.

[0013] The invention also proposes a conductor arrangement with a holder arrangement as described above and with a conductor system as described above, comprising the first busbar and / or the second busbar.

[0014] The first busbar and / or the second busbar can each have external electrical insulation. To prevent damage to the external insulation due to relative movements between the holder and the external insulation, an exemplary embodiment provides that the first busbar of the conductor system extends through a first busbar opening, which is bounded externally by the compensating element. Preferably, the first busbar opening is bounded externally by the compensating element in such a way that the first busbar, preferably the external electrical insulation of the first busbar, is neither in direct contact with the holder nor in direct contact with the second busbar. Furthermore, the second busbar of the conductor system extends through a second busbar opening, which is bounded externally by the compensating element.that the second busbar opening is limited to the outside by the compensating element in such a way that the second busbar, preferably an electrical outer insulation of the second busbar, is neither in direct contact with the holder nor in direct contact with the first busbar.

[0015] The invention also proposes a vehicle with a holder arrangement as described above and / or with a line arrangement as described above.

[0016] The first busbar can have a rectangular or round cross-section. Alternatively or additionally, the second busbar can have a rectangular or round cross-section.

[0017] The first busbar and the second busbar can extend, preferably at least substantially together, along the route of the conductor system.

[0018] The material of the compensating element can be a plastic, preferably a thermoplastic, or a plastic composite, preferably consisting of a thermoplastic and an elastomer coating. The elastomer coating can be provided to protect the outer insulation of the busbars, specifically in those areas of the compensating element that face the busbar penetrations.

[0019] For example, it is provided that the compensating element forms a ball joint head, and / or that the holder forms a socket of the ball joint. Character description

[0020] Advantageous embodiments of the invention are explained in more detail below with reference to the accompanying figures. These show: Fig. 1 in a perspective view a cable arrangement with a holder arrangement and a cable system; Fig. 2. The holder arrangement is shown in an exploded view; Fig. 3 in an exploded view, a holder of the holder assembly; Fig. 4 in a perspective view, a balancing element of the holder arrangement; Fig. 5 in a front view the balancing element; Fig. 6 in a side view the balancing element; Fig. 7. The pipe layout is shown in a front view; Fig. 8. The pipe layout is shown in a top view; Fig. 9 in a side section view the pipe arrangement, and Fig. Figures 10 to 12 show further embodiments of the compensating element, each in a perspective view.

[0021] In the Fig. Figure 1 shows a cable assembly 1 with a holder assembly 3 and a cable system. The cable assembly 1 can be screwed onto the body of a vehicle (not shown) via the holder assembly 3 at at least one mounting point and, here only by way of example, two mounting points.

[0022] The conductor system has a first busbar 11 and a second busbar 13. The first busbar 11 and the second busbar 13 extend together along a conductor path of the conductor system. For illustrative purposes only, the first busbar 11 and the second busbar 13 are each rectangular in cross-section. The first busbar 11 has a first, electrical outer insulation 15. The second busbar 13 has a second, electrical outer insulation 17.

[0023] As especially in the Fig. As shown in Figure 2, the holder arrangement 3 comprises a holder and a compensating element 21, which is shown here as a single piece and made of a single material. The compensating element 21 can also be referred to, for example, as a girdle support, and the holder can also be referred to, for example, as a base support. Here, the holder is shown in two parts, comprising a strip-shaped lower holder part 23 and a hat-profile-shaped upper holder part 25 connected to the lower holder part 23. The holder, specifically the lower holder part 23 and the upper holder part 25, defines a holder opening to the outside.

[0024] The compensating element 21 is in the Fig. Figures 4 to 6 show the compensating element 21 in different views, each in isolation. In the holder arrangement 3, the compensating element 21 is arranged in the holder opening. The compensating element 21 has a first busbar opening 31 for receiving the first busbar 11 and a second busbar opening 33 for receiving the second busbar 13. The first busbar opening 31 is cuboid and completely closed circumferentially with respect to a longitudinal axis of the first busbar 11. The second busbar opening 33 is also cuboid and completely closed circumferentially with respect to a longitudinal axis of the second busbar 11. A central web of the compensating element 21 extends between the first busbar opening 31 and the second busbar opening 33.The balancing element 21 is assigned a longitudinal axis X, a transverse axis Y, and a vertical axis Z, which together form a right-handed Cartesian coordinate system. The origin of the coordinate system lies at or approximately at the center of mass of the balancing element 21. The positive axis directions are in the . Fig. 5 can be seen from the arrowheads.

[0025] The compensating element 21, together with the holder, forms, at least substantially, a ball joint. The compensating element 21 forms, at least substantially, the ball joint head, and the holder forms, at least substantially, the socket of the ball joint. The compensating element 21 is thus rotatably mounted on the holder about its longitudinal axis X, its transverse axis Y, and its vertical axis Z. A specific example of the mounting of the compensating element 21 on the holder is explained in detail below.

[0026] The compensating element 21 has a first outer surface 41. This first outer surface 41 is, here only by way of example, formed by a first, spherical segment-shaped projection 42 that rises in the positive transverse axis direction. The compensating element 21 also has a second outer surface 43. This second outer surface 43 is, here only by way of example, formed by a second, spherical segment-shaped projection 44 that rises in the negative transverse axis direction. The second outer surface 43 and the second projection 44 are particularly evident in the Fig. Figure 5 clearly shows that the first outer surface 41 is plane-symmetric with respect to the plane spanned by the longitudinal axis X and the vertical axis Z, relative to the second outer surface 43.

[0027] As this is shown in the Fig. As shown in Figure 3, a first inner surface 61 of the upper holder part 25 defines a first, spherical segment-shaped recess 63 on the outside. Furthermore, a second inner surface 65 of the upper holder part 25 defines a second, spherical segment-shaped recess 67 on the outside. Additionally, an inner cover surface 69 of the upper holder part 25 defines a third, spherical segment-shaped recess 71, and an inner bottom surface 73 of the lower holder part 23 defines a fourth, spherical segment-shaped recess 75 on the outside.

[0028] In holder arrangement 3, the compensating element 21 is inserted into the holder opening such that the first projection 42 extends into the first recess 63 and is in full contact with the first inner surface 61 in the area of ​​the first recess 63. A similar arrangement applies to the second recess 67: In holder arrangement 3, the compensating element 21 is inserted into the holder opening such that the second projection 44 extends into the second recess 67 and is in full contact with the second inner surface 65 in the area of ​​the second recess 67.

[0029] Furthermore, in holder arrangement 3, the compensating element 21 is inserted into the holder opening such that the third projection 47 extends into the third recess 71 and is in full contact with the third inner surface 69 in the area of ​​the third recess 71. A similar arrangement applies to the fourth recess 75: In holder arrangement 3, the compensating element 21 is inserted into the holder opening such that the fourth projection 51 extends into the fourth recess 75 and is in full contact with the inner bottom surface 73 in the area of ​​the fourth recess 75.

[0030] The diameter of the base of the first elevation 42 and the diameter of the base of the second elevation 44 are the same. The diameter of the base of the third elevation 47 and the diameter of the base of the fourth elevation 49 are the same. The diameter of the first elevation 42 is, preferably considerably, larger than the diameter of the third elevation 47.

[0031] The compensating element 21 is rotatably mounted on the holder via the raised and recessed sections such that it can rotate about the longitudinal axis X, the transverse axis Y, and the vertical axis Z. During rotation about the longitudinal axis X and / or the transverse axis Y and / or the vertical axis Z, the compensating element 21 retains its position relative to the holder, at least substantially, and preferably changes only its orientation relative to the holder. In other words, the compensating element 21 is rotatably mounted on the holder about all three spatial directions while maintaining its position relative to the holder.

[0032] In the Fig. Figures 7 to 9 show the holder arrangement 3 in different states, each corresponding to a specific, merely exemplary, form and position tolerance of the piping system. Fig. 7 is the balancing element 21, in relation to its initial position, as it is, for example, in the Fig. As shown in Figure 1, it is rotated exclusively around the longitudinal axis X. In the Fig. 8 is the balancing element 21, in relation to its initial position, as it is, for example, in the Fig. As shown in 1, it is rotated exclusively around the vertical axis Z. In the Fig. 9 is the balancing element 21, in relation to its initial position, as it is, for example, in the Fig. The figure shown in Figure 1 is rotated exclusively around the vertical axis Z. Of course, any combination of rotations is also possible.

[0033] Based on the Fig. Figure 9 shows that the outer deck surface 45 is beveled in the direction of the outer floor surface 49, both in the positive and negative longitudinal axis directions, starting from the third elevation 47. Based on the Fig. It is also evident from Figure 9 that the outer floor surface 49 is beveled in the direction of the outer deck surface 45, both in the positive and negative longitudinal axis directions, starting from the fourth elevation 51. This creates gaps between the holder and the compensating element 21, into which the compensating element 21 can move.

[0034] The material of the holder, in particular the lower part 23 and the upper part 25, can be or be made of metal, or it can be or be made of plastic. In the embodiment of the holder arrangement 3 described with reference to the figures, or in any other embodiment of the holder arrangement 3, the holder can of course also be made of a single material and / or be a single piece, or consist of more than two individual parts.

[0035] The material of the compensating element 21 can be exclusively a hard plastic component, exclusively a soft plastic component such as silicone, or a combination of a hard plastic component and a soft plastic component. Depending on the application, the surface of the compensating element 21 can also be textured, for example.

[0036] In the embodiment of the holder arrangement 3 described with reference to the figures, or in another embodiment of the holder arrangement 3, the inner cover surface 69 in the area of ​​the third recess 47 can have a recess that is bounded outwards by the inner cover surface 69. Furthermore, the third projection 47 can have an engagement element, such as a tab, a pin, or a mushroom head, which projects through the recess and engages behind the compensating element 21 in the area of ​​the third recess 47, so that the compensating element 21 is additionally secured to the holder. Of course, in the embodiment of the holder arrangement 3 described with reference to the figures, or in another embodiment of the holder arrangement 3, the inner base surface 73 in the area of ​​the fourth recess 75 can also have a recess that is bounded outwards by the inner base surface 73.Furthermore, the fourth projection 51 can have an engagement element, such as a tab or a pin or a mushroom head, which protrudes through the recess and engages behind the compensating element 21 in the area of ​​the fourth recess 75, so that the compensating element 21 is additionally secured to the holder.

[0037] In the embodiment of the conductor system described with reference to the figures, or in another embodiment of the conductor system, the first busbar 11 and the second busbar 13 can be not only rectangular in cross-section, but instead, for example, each be round. The first busbar opening 31 and the second busbar opening 33 are then adapted in their geometry to the round cross-sectional shape of the busbars 11 and 13.

[0038] In the Fig. Figures 10 to 12 show further compensating elements 101, 201, 301. Compensating element 12 can, of course, be replaced in the conductor arrangement 1 or the holder arrangement 3 by any of the elements shown in the figures. Fig. The compensating elements shown in sections 10 to 12 may be replaced. Parts and / or elements of compensating elements 101, 201 and 301 that are identical to those of compensating element 12 may be designated with the same reference numerals as those of compensating element 12.

[0039] In the Fig. Figure 10 shows the compensating element 101. The compensating element 101 is essentially identical to the compensating element 12 and differs only in that the compensating element 101 is not made in one part, but in two parts. A first part 103 of the compensating element 101 is positively connected to a second part 107 of the compensating element 101 by a dovetail joint in the area of ​​the outer deck surface 45 and in the area of ​​the outer bottom surface 49, and, optionally, in the area of ​​a central web 105 of the compensating element 101. A dividing plane between the first part 103 and the second part 107 extends essentially parallel to the plane spanned by the longitudinal axis X and the vertical axis H.

[0040] In the Fig. Figure 11 shows the compensating element 201. The compensating element 201 is essentially identical to the compensating element 101 and differs only in that a first part 203 of the compensating element 201 and a second part 205 of the compensating element 201 are not positively connected to each other along a parting plane via a dovetail joint. Instead, the first part 203 and the second part 205 are identical parts that are rotated 180° relative to each other about the transverse axis Y and positively connected to each other via a dovetail joint in the area of ​​the outer deck surface 45 and the outer bottom surface 49, respectively.

[0041] In the Fig.Figure 12 shows the compensating element 301. The compensating element 301 is essentially identical to the compensating element 12 and differs only in that, in the area of ​​the first outer surface 41 of the compensating element 301, a central web 307 of the compensating element 301 is not connected to the other parts of the compensating element 301, but is merely in contact with the other parts of the compensating element 301. In other words, the compensating element 301 has two slots in the area of ​​the central web 307, with the slots being spaced apart from each other and each extending parallel to the plane spanned by the longitudinal axis X and the transverse axis Y. For all compensating elements 101, 201, and 301, the slots, parting planes, or parting points ideally run outside the recesses. REFERENCE MARK LIST 1. Cable arrangement 3 Holder arrangement 11 first busbar 13 second busbar 15 first external insulation 17 second external insulation 21 Compensating element 23 Holder base 25 Holder top 31 first busbar penetration 33 second busbar feedthrough 41 first outer surface 42 first survey 43 second outer surface 44 second survey 45 sq m outdoor deck area 47 third survey 49 outdoor floor area 51 fourth survey 61 first inner surface 63 first in-depth study 65 second inner surface 67 second in-depth study 69 Interior deck area 71 third in-depth study 73 Interior floor area 75 fourth in-depth study 101 Compensating element 103 Part One 105 Middle walkway 107 Part Two 201 Compensating element 203 Part One 205 Part Two 301 Compensating element 307 Central Bridge X Longitudinal axis Y transverse axis Z vertical axis

Claims

[1] Holder arrangement with: a holder for attaching a wiring system with at least one busbar to at least one mounting point on the body of a vehicle, and a compensating element (21; 101; 201; 301) for receiving the piping system, wherein the compensating element (21; 101; 201; 301) is rotatably mounted on the holder to compensate for form and / or position tolerances between a piping path of the piping system and the holding point, characterized by , that the holder together with the compensating element (21, 101, 201, 301) forms a ball joint, wherein it is provided that the compensating element (21, 101, 201, 301) is rotatably mounted on the holder about its longitudinal axis (X) and / or about its transverse axis (Y) and / or about its vertical axis (Z). [2] Holder arrangement according to claim 1, characterized by, that the holder limits a holder passage to the outside, and that the compensating element (21; 101; 201; 301) is arranged in the holder passage. [3] Holder arrangement according to claim 1 or 2, characterized by , that the compensating element (21; 101; 201; 301) is mounted on the holder in such a way that the position of the compensating element (21; 101; 201; 301)) relative to the holder remains unchanged when rotated about the longitudinal axis (X) and / or the transverse axis (Y) and / or the vertical axis (Z). [4] Holder arrangement according to one of the preceding claims, characterized by, that a first outer surface (41) of the compensating element (21; 101; 201; 301) is at least partially formed by a first, preferably spherical segment-shaped, projection, and that a first inner surface of the holder opposite the first outer surface has a first, preferably spherical segment-shaped, recess (63), and that in the region of the first recess (63) the first projection (42) is slidably mounted on the first inner surface (61) of the holder, and / or that a second outer surface (43) of the compensating element (21; 101; 201; 301) is at least partially formed by a second, preferably spherical segment-shaped, projection, and that a second inner surface of the holder opposite the second outer surface has a second, preferably spherical segment-shaped, recess (67), and that in the region of the second recess the second projection (44) is slidably mounted on the second inner surface (65) of the holder is. [5] Holder arrangement according to one of the preceding claims, characterized by, that an outer deck surface (45) of the compensating element (21; 101; 201; 301) is at least partially formed by a third, preferably spherical segment-shaped, projection, and that an inner deck surface (69) of the holder opposite the outer deck surface (45) has a third, preferably spherical segment-shaped, recess (71), and that in the region of the third recess (71) the third projection (47) is slidably mounted on the inner deck surface (69) of the holder, and / or that an outer bottom surface (49) of the compensating element (21; 101; 201; 301) is at least partially formed by a fourth, preferably spherical segment-shaped, projection, and that an inner bottom surface (73) of the holder opposite the second outer surface has a fourth, preferably spherical segment-shaped, recess (75), and that in the region of the fourth recess (75) the fourth projection (51) is slidably mounted on the inner bottom surface (73) of the holder is stored. [6] Holder arrangement according to claim 4 or 5, characterized by , that the base area of ​​the first, spherical segment-shaped elevation and the base area of ​​the second, spherical segment-shaped elevation are each spaced apart from each other and / or each extend perpendicular to the transverse axis (Y) of the compensating element (21; 101; 201; 301), and / or that the base area of ​​the third, spherical segment-shaped elevation and the base area of ​​the fourth, spherical segment-shaped elevation are each spaced apart from each other and / or each extend perpendicular to the vertical axis (Z) of the compensating element (21; 101; 201; 301). [7] Conductor arrangement with a holder arrangement according to one of the preceding claims and with a conductor system comprising a first busbar and / or a second busbar. [8] Line arrangement according to claim 7, characterized by, that the first busbar (11) of the conductor system extends through a first busbar opening (31) which is externally limited by the compensating element (21; 101; 201; 301), preferably that the first busbar opening (31) is externally limited by the compensating element (21; 101; 201; 301) in such a way that the first busbar (11), preferably an electrical outer insulation of the first busbar, is neither in direct contact with the holder nor in direct contact with the second busbar, and / or that the second busbar (13) of the conductor system extends through a second busbar opening (33) which is externally limited by the compensating element (21; 101; 201; 301), preferably that the second busbar opening (33) is externally limited by the compensating element (21; 101; 201;301) is limited externally such that the second busbar (13), preferably an electrical outer insulation of the second busbar (13), is neither in direct contact with the holder nor in direct contact with the first busbar (11). [9] Vehicle with a holder arrangement according to one of claims 1 to 6 and / or with a line arrangement according to one of claims 7 and 8.

Citation Information

Patent Citations

  • Mounting device for a busbar

    DE102023106348A1

  • Interstud rail fastening system

    US20130104494A1