Wiring harness installed in a motor vehicle, accommodating two types of wiring paths.

Abstract

Wiring harness (9) that can be installed in a motor vehicle, which has: a first transmission path (20) which has a high protection priority; a second transmission path (21) which has a lower protection priority than that of the first transmission path (20), and an outer element (22) which has a straight tubular section (23) and which accommodates the first conductor path (20) and the second conductor path (21) in such a way that they are protected, wherein the outer element (22) has a shape in which the first conduit path (20) is positioned further away from a road surface (24) in a longitudinal direction within a given area than the second conduit path (21) and wherein the straight tubular section (23) has a ceiling wall (25), a floor wall (26), a left wall (27), a right wall (28) and four continuous connecting sections (29) that connect these four walls continuously, and wherein the ceiling wall (25) has a larger radius of curvature than the floor wall (26), wherein the left wall (27) and the right wall (28) are designed to narrow the distance between them as they extend towards the bottom wall (26).

Description

Background of the invention<Gebiet der Erfindung>

[0001] The present invention relates to a cable harness installed in a motor vehicle, and in particular to a cable harness comprising at least two types of conductor paths, including a high-voltage conductor path, and a cylindrical outer element that jointly accommodates these conductor paths for protection. <Beschreibung der verwandten Technik>

[0002] In recent years, hybrid electric vehicles and electric vehicles have attracted attention as environmentally friendly vehicles. Furthermore, the adoption of environmentally friendly vehicles has accelerated. Hybrid electric vehicles and electric vehicles have a motor as their power source, and to drive the motor, components such as a battery and an inverter must be electrically connected using a high-voltage wiring harness. A high-voltage wiring harness includes a high-voltage electrical conductor, which forms a high-voltage transmission path, and an external component that houses this high-voltage electrical conductor.

[0003] A number of proposals have been made regarding high-voltage cable harnesses. As an example of these proposals, a cable harness is mentioned which is disclosed below in patent literature 1.

[0004] [Patent literature 1] JP 2004 - 224 156 A

[0005] JP 2016-213 061 A describes a path containing two types of unshielded electrical wires (high-voltage system) and (low-voltage system) inserted into a conduit. Two wires are arranged on the top side of the first conduit, and one electrical wire is arranged on the bottom side of the second conduit. The conduit has a cylindrical body with a substantially circular cross-section. The conduit has a partition wall with a slightly curved cross-section.

[0006] JP 2012-138457A discloses that an electrical wire is inserted through a shielding tube and is a high-voltage electrical wire. The electrical wire is a low-voltage electrical wire. Both the shielding tube and the electrical wire are inserted into an outer tube.

[0007] EP 2 894 732 A1 discloses a central conductor and two conductors of a concentric core wire arranged in a tripartite shape. The conductors are integrally insulated and fixed and positioned by an insulating element. The ends of the high-voltage concentric core wire can be easily inserted into an electrical wire conduit.

[0008] DE 11 2014 002 995 T2 describes a shielded cable harness and a manufacturing process for it, and US 2015 / 0 246 647 A1 describes a shielded guide path. Both documents describe two electrical wires for high voltage and one electrical wire for low voltage. Furthermore, all three electrical wires are enclosed in a cylindrical protective element.

[0009] From US 2016 / 0 164 269 A1, a wiring harness is known which exhibits: a first transmission path which has a high protection priority due to high voltage, A second conductor path, which has a lower protection priority than the first conductor path due to its lower voltage, is provided. An outer element, comprising a straight, tubular section, houses and protects both the first and second conductor paths. This straight, tubular section includes a ceiling wall, a floor wall, a left wall, a right wall, and four continuous connecting sections that link these four walls. The ceiling wall is straight, and the floor wall is corrugated.

[0010] From JP 2005 - 80 449 A, a cable harness is known that comprises a first and a second conductor path. There is an outer element that has a straight, tubular section and houses both the first and second conductor paths in such a way that they are protected. The straight, tubular section includes a top wall, a bottom wall, a left wall, a right wall, and four continuous connecting sections that connect these four walls. The outer element is designed in two parts: a straight top section and a corrugated bottom wall section.

[0011] According to current technology, there are concerns that an external component forming a wiring harness could be damaged, thereby severing a high-voltage electrical conductor, if a hybrid electric vehicle or electric vehicle hits a curb or if a foreign object impacts the underbody of the hybrid electric vehicle or electric vehicle from the side of a road surface. Considering the possibility that the high-voltage electrical conductor could be severed, exposing a conductor that subsequently comes into contact with a conductive element, device, or body frame, a highly dangerous situation would arise, involving the flow of a high-voltage electric current.

[0012] The invention was made in view of the situation described above, and one problem that the invention is intended to solve is to provide a cable harness that can improve reliability while ensuring its safety. Overview

[0013] According to one or more embodiments, a cable harness according to the invention includes the features of claim 1.

[0014] In the case of the wiring harness, a section of the wiring harness corresponding to the specified area of ​​the outer element can be formed on the underside of a vehicle floor according to a routing length.

[0015] In the wiring harness, the voltage value of the first wire path is higher than that of the second wire path.

[0016] In the wiring harness, the first cable path contains two cable paths, and the second cable path contains one cable path.

[0017] Further advantageous embodiments of the invention are specified in further dependent claims.

[0018] According to one or more embodiments, if a vehicle strikes a curb or if a foreign object from the side of the road surface impacts the wiring harness, even if the outer element forming the wiring harness is damaged, only the second conductor path (a low-voltage conductor path), which has the lower protection priority, is affected before the first conductor path (a high-voltage conductor path), which has the high protection priority, is affected. The second conductor path acts as a shield for the first conductor path, and if the second conductor path is subjected to an impact, for example, the impact received is absorbed and distributed by the second conductor path.Although the second conductor path is damaged to the point of being cut, if damage to the first conductor path is avoided, not only can the vehicle itself be driven, but it can also be prevented from flowing into a conductive element or vehicle body frame, thus ensuring safety.

[0019] According to one or more embodiments, a cable harness is characterized by a design of an external element in which a first conductor path is positioned further away from a road surface than a second conductor path. By selecting this design, a construction is provided in which no separate element is required to prevent interruption. Since no such separate element is required, the one or more embodiments can also provide the advantageous cable harness without any increase in the number of labor hours, weight, or cost compared to the conventional cable harness.

[0020] According to one or more embodiments, an advantageous effect can be provided that can ensure safety and improve reliability. Furthermore, according to one or more embodiments, an advantageous effect can be provided on the underside of the vehicle floor that can ensure safety and improve reliability. Brief description of the drawings Fig. Figure 1 is a schematic view illustrating a state in which a cable harness is routed. Fig. 2 is a cross-sectional view along a line AA in Fig. 1. Fig. Figure 3 is a schematic view illustrating a condition in which a foreign object impacts from below. Fig. 4A and Fig. 4B are schematic views illustrating a comparative example. Detailed description

[0021] A wiring harness comprises a cylindrical outer element and a first and a second conductor path, both housed together within the outer element for protection. The first conductor path is a high-voltage path with a high protection priority, and the second conductor path is a low-voltage path with a lower protection priority than the first. The outer element is shaped to control the position of the first conductor path such that, over a predetermined area in a longitudinal direction, specifically an area extending over the underside of a vehicle floor, the first conductor path remains farther away than the second conductor path from a road surface over a predetermined area.By including the outer element, which is shaped in the manner described above, the arrangement of the conduit paths on the underside of the vehicle floor is ensured, with the first conduit path being located above or higher, whereas the second conduit path is located below or lower. [Version]

[0022] In the following, an embodiment of the invention is described with reference to the drawings. Fig. Figure 1 is a schematic view illustrating a state in which a cable harness of the invention is laid. Fig. 2 is a cross-sectional view along a line AA in Fig. 1, and Fig. Figure 3 is a schematic view illustrating a condition in which a foreign object impacts the wiring harness from below. Fig. 4A and Fig. 4B are schematic views illustrating a comparative example.

[0023] In this embodiment, the invention is applied to a wiring harness installed on a hybrid electric vehicle (alternatively on an electric vehicle or a general vehicle powered by an internal combustion engine). <Ausgestaltung eines Hybridelektrofahrzeugs 1>

[0024] In Fig. Reference numeral 1 designates a hybrid electric vehicle. The hybrid electric vehicle 1 is a vehicle powered by a combination of two power sources: an internal combustion engine 2 and a motor unit 3. Electrical power is supplied to the motor unit 3 by a battery (or battery pack) 5 via an inverter unit 4. In this embodiment, the internal combustion engine 2, the motor unit 3, and the inverter unit 4 are located in an engine compartment 6, which is situated in the area where the front wheels and the like are located. The battery 5 is located in a rear section 7 of the hybrid electric vehicle 1, in the area where the rear wheels and the like are located (alternatively, the battery 5 can be located in a passenger compartment of the hybrid electric vehicle 1, which is situated behind the engine compartment 6).

[0025] The motor unit 3 and the inverter unit 4 are connected to each other by a high-voltage cable harness 8 (a high-voltage motor cable). The battery 5 and the inverter unit 4 are connected by a high-voltage line 20 (see Fig. 2) of a cable harness 9 are also connected to each other. In the cable harness 9, a central section 10 is laid on the underside of a vehicle floor 11 of the hybrid electric vehicle 1 (or a vehicle body). Furthermore, the central section 10 is laid substantially parallel to the vehicle floor 11. The vehicle floor 11 is a known structure (vehicle body) and a so-called plate element, and through-holes are formed at predetermined positions in the vehicle floor 11. The cable harness 9 is routed through the through-holes in a watertight manner.

[0026] The cable harness 9 of this invention includes high-voltage conductor paths 20 (see Fig. 2), which are described below, as components thereof. The high-voltage conductor path 20 of the wiring harness 9 and the battery 5 are connected to each other via a terminal block 12 provided at the battery 5. An external connecting element, such as a shielded connector 14, provided at a wiring harness terminal 13 located on one side of a rear end of the wiring harness 9, is electrically connected to the terminal block 12. The high-voltage conductor path 20 of the wiring harness 9 and the inverter unit 4 are electrically connected to each other via an external connecting element, such as a shielded connector 14, provided at a wiring harness terminal 13 located at a front end of the wiring harness 9.

[0027] The motor unit 3 is designed to include a motor and a generator. The inverter 4 is designed to include an inverter and a converter. The motor unit 3 is designed as a motor assembly that includes a shielded housing. Furthermore, the inverter unit 4 is also designed as an inverter assembly that includes a shielded housing. The battery 5 consists of a Ni-MH or Li-ion-based modular battery. It is possible, for example, to use an energy storage device such as a capacitor. Naturally, the battery 5 is not subject to any special restrictions, provided that the battery 5 can be used in the hybrid electric vehicle 1 or an electric vehicle.

[0028] In addition to the configuration described above, the cable harness 9 also includes a low-voltage line 21 (see Fig. 2), which is described below. The low-voltage wiring path 21 is provided to electrically connect a low-voltage battery 15, located at the rear section 7 of the hybrid electric vehicle 1, and an auxiliary unit 17 (a unit of auxiliary equipment) attached to a front section 16 of the hybrid electric vehicle 1. The low-voltage wiring path 21 of the wiring harness 9 is, as with the high-voltage wiring paths 20 (see Fig. 2), which are described below, are laid through the vehicle floor 11

[0029] In cable harness 9, reference numeral 18 designates a main cable harness body. Furthermore, reference numeral 19 designates a branch line. <Ausgestaltung des Kabelbaums 9>

[0030] In Fig. 1 includes the long cable harness 9, which is routed through the vehicle floor 11, a cable harness main body 18, the shielded connectors 14 (the external connecting means) which are arranged at both ends (the cable harness connection ends 13) of the cable harness main body 18, branch lines 19 which branch off from a front side and a rear side of the cable harness main body 18, external connecting means (whose reference numerals are omitted) for the branch lines 19 and subsequently added elements not shown, such as clamps and rubber sealing rings. <Ausgestaltung des Kabelbaum-Hauptkörpers 18>

[0031] In Fig. 2 The main body of the cable harness 18 includes two long high-voltage conductor paths 20 (a primary conductor path), one low-voltage conductor path 21 (or a bundle of low-voltage conductor paths 21) (a secondary conductor path) and an outer element 22 that accommodates the two high-voltage conductor paths 20 and the one low-voltage conductor path 21 together for protection. <Hochspannungs-Leitungsweg 20>

[0032] In Fig. 2. The high-voltage transmission paths 20 are each a transmission path with a circular cross-section through which a high electric current flows, and their protection priority is set as highest, so that the high-voltage transmission path 20 is not cut in any way from a safety perspective. These high-voltage transmission paths 20 correspond to a first transmission path described in the claims. The high-voltage transmission path 20 includes a conductor carrying an electric current, an insulator covering the conductor in such a way as to isolate it in order to prevent an unwanted flow of electric current from it, and a braid (a shielding element) that has a shielding function. In particular, a high-voltage transmission path without sheathing (which is an example) is chosen as the high-voltage transmission path 20.Since the high-voltage line path 20 has no sheathing, the high-voltage line path 20 is naturally lightweight (the high-voltage line path 20 can of course be made exceptionally lightweight compared to a conventional one, since the high-voltage line path 20 is long). <leiter>

[0033] Although not specifically illustrated, the conductor of the high-voltage transmission path 20 has a circular cross-section and is made of copper or a copper alloy, or of aluminum or an aluminum alloy. The conductor can have either a conductor structure consisting of twisted individual wires or a rod-shaped conductor structure with a circular (round) cross-section (for example, a conductor structure consisting of a single solid, round core, in which case the transmission path itself is in a rod-like shape). The conductor designed as described above has an insulator made of an insulating resin material extruded over an outer surface. <isolator>

[0034] Although not specifically illustrated, the insulator described above is made of a thermoplastic resin material and extruded over an outer circumferential surface of the conductor. The insulator is designed as a cover with a circular cross-section. The insulator is designed to have a predetermined thickness. Various known types of thermoplastic resin materials can be used as the thermoplastic resin material described above, and a suitable thermoplastic resin material is selected as required from polymer materials such as polyvinyl chloride resin, polyethylene resin, polypropylene resin, or the like. <geflecht>

[0035] Although not specifically illustrated, the braid is provided as the outermost layer of the high-voltage transmission line 20. The braid is formed by interlacing extremely thin conductive individual wires into a tubular structure. The braid is designed and sized to completely cover the outer circumference of the insulator from one end to the other. It should be noted that not only the braid, but also a metal foil can be used as a shielding element. <Niederspannungs-Leitungsweg 21>

[0036] In Fig. 2. The low-voltage line path 21 is a line path with a circular cross-section, which has a lower protection priority than that of the high-voltage line path 20, and in this embodiment, a general low-voltage electrical line is selected as the low-voltage line path 21. The low-voltage line path 21 corresponds to a second line path described in the claims. The low-voltage line path 21 includes a conductor carrying an electric current and an insulator that covers the conductor in such a way as to isolate it and prevent an unwanted flow of electric current from it. Although in Fig. 2 where the diameter of the low-voltage line path 21 is illustrated in such a way that it almost matches that of the high-voltage line path 20, this is an example of the low-voltage line path 21. <Outer element 22>

[0037] As described above, it is a matter of Fig. 2. In the outer element 22, the outer element 22 is designed to accommodate the two high-voltage conductor paths 20 and the single low-voltage conductor path 21, together for protection. In this embodiment, the outer element 22 is formed into a tubular shape using resin molds (the outer element 22 can be formed not only using resin material by resin molds, but also, for example, by drawing using a metal material. In this embodiment, the outer element 22 is formed from a metal material). The outer element 22, designed in the manner described above, is formed into a shape without a longitudinal cut (in other words, the outer element 22 is formed into a shape without a longitudinal slot (formed into a shape that is not a slotted tube)). Since the outer element 22 has no longitudinal cut or slot in it, the outer element 22 is formed into a shape that is Fig. The outer element 22 of this embodiment is designed as shown in Figure 2, which has an inner space that allows the two high-voltage conductor paths 20 and the one low-voltage conductor path 21 to pass through it. The inner space is designed as a space that extends sufficiently to prevent the two high-voltage conductor paths 20 and the one low-voltage conductor path 21 from moving uncontrollably and significantly. The outer element 22 of this embodiment is designed to have a straight tubular section 23 and a flexible tubular section (whose reference numeral has been omitted) that extends to this straight tubular section 23. <Gerader röhrenförmiger Abschnitt 23>

[0038] In Fig. 2. The straight, tubular section 23 is designed as a section in which the two high-voltage conductor paths 20 and the one low-voltage conductor path 21 are routed in a straight line. The straight, tubular section 23 is selected for at least one section in which the wiring harness 9 (the main body of the wiring harness 18) is routed on the underside of the vehicle floor 11. It should be noted that the straight, tubular section 23 can be selected for a section located in the engine compartment 6. <Charakteristische Ausgestaltung>

[0039] The straight tubular section 23 is formed to a length such that it is laid on the underside of the vehicle floor 11. Furthermore, the straight tubular section 23 is designed such that it is characterized by its shape or configuration (the straight tubular section 23 is configured in a configuration that characterizes the invention). More precisely, in a portion thereof that is laid on the underside of the vehicle floor 11, the straight tubular section 23 is formed into a shape that can control the positions of the two high-voltage conductor paths 20 and the single low-voltage conductor path 21 such that the two high-voltage conductor paths 20 remain further away from a road surface 24 than the single low-voltage conductor path 21.In other words, the straight tubular section 23 is formed into the shape that controls the arrangement of the conductor paths on the underside of the vehicle floor 11 such that the two high-voltage conductor paths 20 remain above or higher, whereas the one low-voltage conductor path 21 remains below or lower.

[0040] The straight, tubular section 23 of this embodiment is to be used in Fig. The structure is formed as shown in Figure 2 and comprises a ceiling wall 25, a floor wall 26, a left wall 27, a right wall 28, and four continuous connecting sections 29 that connect these four walls. These walls are described below by considering a cross-sectional shape of the straight tubular section 23. The ceiling wall 25 is formed as a substantially curved wall with a relatively large radius of curvature and projects upwards. The ceiling wall 25, formed as described above, is located on the underside of the vehicle floor 11. The floor wall 26 is formed as a substantially curved wall with a small radius of curvature and projects downwards. The floor wall 26, formed as described above, is located on one side of a road surface 24.The left wall 27 and the right wall 28 are designed to narrow the gap between them as they extend towards the floor wall 26. The four continuous connecting sections 29 are formed into an R-shape (a rounded shape). This ceiling wall 25 up to the four continuous connecting sections 29 is designed to extend in an axial direction along the straight tubular section 23.

[0041] The interior of the straight, tubular section 23 is partially configured in such a way that one low-voltage conductor 21 is housed in an arc section of the base wall 26, while the two high-voltage conductors 20 are stacked on top of the single low-voltage conductor 21. Furthermore, the interior of the straight, tubular section 23 is also partially configured in such a way that the two high-voltage conductors 20 are prevented from moving downwards towards the base wall 26. The two high-voltage conductors 20 are always positioned such that they remain further away from the road surface 24 than the single low-voltage conductor 21.The section of the straight tubular section 23 in which the conduit paths are arranged in the manner described above is referred to as "section 30 for controlling the arrangement of the conduit paths". <Funktion der Erfindung>

[0042] In Fig. 3. In the main body of the cable harness 18, the two high-voltage conductor paths 20 and the one low-voltage conductor path 21 are held vertically arranged by the section 30 formed on the straight tubular section 23 for controlling the arrangement of the conductor paths, as shown therein. For example, if the hybrid electric vehicle 1 (see Fig. 1) If the vehicle hits a curb or if an impact of a foreign object 31 is caused by the road surface 24, although the bottom wall 26 of section 30 for controlling the arrangement of the conductor routes is damaged, only the low-voltage conductor route 21, which has the lower protection priority, is affected before the high-voltage conductor routes 20. The low-voltage conductor route 21 serves, in a sense, as a protective shield for the high-voltage conductor routes 20, which have the high protection priority, and if the low-voltage conductor route 21 is subjected to a shock generated by the impact of the foreign object 31, the shock is intended to be absorbed and distributed by the low-voltage conductor route 21.Although the low-voltage line path 21 is cut, provided that damage to the high-voltage line paths 20 can be avoided, not only can the hybrid electric vehicle 1 be driven, but it is also prevented that a high electric current flows into a conductive element or body frame, and therefore safety is ensured.

[0043] As in a comparative example in Fig. 4A and Fig. As shown in Figure 4B, an outer element 32 (an outer element 32 as a comparative example) is designed as a tubular structure with a circular cross-section, and in the outer element 32 (with the same design and arrangement as those of the conventional example) two high-voltage conductor paths 20 are accommodated such that they are arranged below or lower, whereas a low-voltage conductor path 21 is accommodated such that it is arranged above or higher, so that it is understood that if an impact 31 of a foreign body is caused by the road surface 24 (see Figure 4B) Fig. 3) the two high-voltage transmission lines 20 can easily be damaged to such an extent that they fail. Consequently, it is understood that a design of section 30 for controlling the arrangement of the transmission lines and an arrangement of the two high-voltage transmission lines 20 and the one low-voltage transmission line 21, as in Fig. 2 shown, are effective. In other words, it is understood that the invention is effective. <Vorteilhafte Wirkungen der Erfindung>

[0044] As before, with reference to Fig. As described in sections 1 to 4B, the invention therefore provides an advantageous effect insofar as not only safety can be ensured, but also reliability can be improved.

[0045] Furthermore, according to the invention, the two high-voltage conductor paths 20 are controlled such that they remain further away from the road surface 24 than the single low-voltage conductor path 21, and the section 30 for controlling the arrangement of the conductor paths is formed on the outer element 22. Consequently, a design is provided in which no separate element is required to prevent the risk of interruption. Compared with the conventional cable harness, the invention can therefore provide an advantage in that the cable harness 9 can be provided without any increase in the number of working hours, weight, or cost.

[0046] In the preceding description, two high-voltage conductor paths 20 and one low-voltage conductor path 21 have been selected. However, an embodiment can be chosen in which three high-voltage conductor paths, aligned laterally next to each other (one shielded high-voltage electrical cable), and two low-voltage conductor paths (low-voltage electrical lines) are selected, and an external element is designed to control the arrangement of these conductor paths in a vertical direction. Furthermore, the high-voltage conductor path (the first conductor path) can, for example, be configured such that a cover and a shielding element are provided at a known busbar. Description of the reference symbols 1 hybrid electric vehicle; 2 Internal combustion engine; 3 Motor unit; 4 inverter units; 5 batteries; 6 Engine compartment; 7 rear part of the hybrid electric vehicle; 8, 9 Wiring harness; 10 middle section; 11 Vehicle floor; 12 Junction boxes; 13 Cable harness connection end; 14 shielded connectors; 15 Low-voltage battery; 16 front part of the hybrid electric vehicle; 17 Additional unit; 18 Cable harness main body; 19 branch lines; 20 High-voltage transmission line (first transmission line); 21 Low-voltage line route (second line route); 22 outer element; 23 straight tubular section; 24 street area; 25 Ceiling wall; 26 Floor wall; 27 left wall; 28 right wall; 29 continuous connecting section; Section 30 on controlling the arrangement of the pipeline routes; 31 Impact of a foreign object; 32 outer element as a comparative example.< / geflecht> < / isolator> < / leiter>

Claims

[1] Wiring harness (9) that can be installed in a motor vehicle, comprising: a first transmission path (20) which has a high protection priority; a second transmission path (21) which has a lower protection priority than that of the first transmission path (20), and an outer element (22) which has a straight tubular section (23) and which accommodates the first conductor path (20) and the second conductor path (21) in such a way that they are protected, wherein the outer element (22) has a shape in which the first conduit path (20) within a given area is positioned further away from a road surface (24) in a longitudinal direction than the second conduit path (21) and wherein the straight tubular section (23) has a ceiling wall (25), a floor wall (26), a left wall (27), a right wall (28) and four continuous connecting sections (29) that connect these four walls continuously, and wherein the ceiling wall (25) has a larger radius of curvature than the floor wall (26), wherein the left wall (27) and the right wall (28) are designed to narrow the distance between them as they extend towards the bottom wall (26). [2] Cable harness (9) according to claim 1, wherein a section of the cable harness (9) corresponding to the predetermined area of ​​the outer element (22) is formed on an underside of a vehicle floor (11) according to a laying length. [3] Cable harness (9) according to claim 1, wherein a voltage value of the first conductor path (20) is higher than that of the second conductor path (21). [4] Cable harness (9) according to claim 1, wherein the first conductor path (20) includes two conductor paths and the second conductor path (21) includes one conductor path. [5] Cable harness (9) according to claim 1, wherein the first line path (20) includes three lines paths and the second line path (21) includes two lines paths. [6] Cable harness (9) according to claim 5, wherein the three conductor paths of the first conductor path (20) are aligned side by side. [7] Wiring harness (9) according to claim 1, wherein in the event that a vehicle (1) hits a curb or if an impact of a foreign object (31) is caused by the road surface (24) and collides with the wiring harness (9), the second conductor path (21) with the lower protection priority is affected before the first conductor path (20) with the high protection priority is affected. [8] Cable harness (9) according to claim 7, wherein the second conductor path (21) serves as a protective shield for the first conductor path (20), and when the second conductor path (21) is subjected to a shock, the shock received in this way is absorbed and distributed by the second conductor path (21).

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