Cable string

Abstract

Cable harness (10), comprising: a vehicle-mounted component (20) mounted in or on a vehicle; and a plurality of electrical cables (30), at least one part of which extends along a longitudinal direction is glued to the vehicle-mounted component, wherein the vehicle-mounted component has a hard part formed from hard plastic, and each of the electric cables is separately glued to the hard part in a state in which insulating covers (34) of the electric cables are directly glued to this hard part; characterized in that: a thermal stress structural part (40) for preventing damage to the electrical cables due to thermal stress caused by a difference in the linear expansion coefficients between the electrical cables and the hard part.

Description

TECHNICAL FIELD

[0001] The present invention relates to a technique for placing a wiring harness in a vehicle. TECHNICAL BACKGROUND

[0002] When a wiring harness is mounted in a vehicle, there are cases where the wiring harness is fixed to a panel of the vehicle body and then an internal element is attached to it, as described in JP 2007 - 99 007 A.

[0003] JP 2007-99007A discloses a technique for placing a wiring harness in a door sill of a vehicle. The technique described in JP 2007-99007A is that a protective member housing an electrical cable is fixed to a panel of the vehicle body, and an abrasion plate covers the protective member. PREVIOUSLY KNOWN DOCUMENTS PATENT DOCUMENTS

[0004] DE 10 2005 029 016 A1 discloses a support arrangement for a motor vehicle with a support and at least one electrical conductor which is arranged along at least a partial area of ​​the support, wherein at least one electrical conductor is formed by a flat strip or foil conductor which is attached directly to the support. SUMMARY OF THE INVENTION PROBLEMS TO BE SOLVED BY THE INVENTION

[0005] However, in the technology described in JP 2007-99007 A, vibration may occur in the electrical cable, necessitating anti-vibration measures. Furthermore, there is a possibility that the number of work steps in the vehicle factory may increase, or that the space for installation may decrease, or the weight may increase due to the provision of the protective element.

[0006] It is therefore an object of the present invention to provide a better technique for placing a wiring harness in a vehicle. MEANS TO SOLVE THE PROBLEM

[0007] To solve the above problem, a wire harness according to one aspect of the invention comprises the features of claim 1.

[0008] A wire harness according to a second aspect further comprises an elastic adhesive layer disposed between the electrical wires and the hard part and having elasticity, the elastic adhesive layer simultaneously serving as a structural member against thermal stresses.

[0009] A wire harness according to a third aspect is a wire harness according to the first or second aspect, wherein, as a structural member against thermal stress, an intermittent bonding portion is formed in which a plurality of bonded portions in which the electric wires and the hard part are bonded to each other are provided at intervals along the longitudinal direction of the electric wires.

[0010] A cable harness according to a fourth aspect is a cable harness according to any one of the first to third aspects, wherein a meandering section is formed as a structural part against thermal stresses, in which the electrical cables are bonded in an adhesive region in which the electrical cables are bonded.

[0011] A wire harness according to a fifth aspect is a wire harness according to any one of the first to fourth aspects, wherein the vehicle-mounted component is an interior member having an exposed design surface, and the electrical wires are bonded to a surface on a back side of the design surface. EFFECTS OF THE INVENTION

[0012] According to the claimed arrangement, the electrical cables are bonded to a vehicle-mounted component, so that vibrations of the vehicle-mounted electrical cables can be suppressed. The electrical cables can be installed at the same time as the vehicle-mounted component is installed in the vehicle.

[0013] Furthermore, according to the invention, the hard part and the electrical cables can be integrated with each other. The electrical cables can be protected by the hard part.

[0014] When electrical cables are bonded to a rigid element, there is a risk of damage to the electrical cables due to thermal stress. However, since a structural part is provided to protect against thermal stress, the electrical cables are hardly damaged in this case, even if the rigid element and the electrical cables are integrated.

[0015] According to the second aspect, the elastic adhesive layer can compensate for a difference in the amount of expansion (or shrinkage) between the electric wires and the hard part.

[0016] According to the third aspect, an intermittent bonding portion is formed so that thermal stresses are hardly concentrated in only one position.

[0017] According to the fourth aspect, a meandering section is formed so that thermal stresses are hardly concentrated in only one position.

[0018] According to the fifth aspect, the electrical cables can be installed in the car together with the interior element. SHORT DESCRIPTION OF THE CHARACTERS Fig. 1 is a perspective view showing a wire harness according to a first embodiment. Fig. 2 is a side view showing the wire harness according to the first embodiment. Fig. 3 is a cross-sectional view of the wire harness taken along line III-III in Fig. 1. Fig. 4 is a cross-sectional view through a cable harness according to a second embodiment. Fig. 5 is a cross-sectional view illustrating a modification of the wire harness according to the second embodiment. Fig. 6 is a side view showing a wire harness according to a third embodiment. Fig. 7 is a cross-sectional view showing a wire harness according to a fourth embodiment. Fig. 8 is a cross-sectional view showing the wire harness according to the fourth embodiment. EMBODIMENTS FIRST EMBODIMENT

[0019] A cable harness according to a first embodiment will be described below. Fig. 1 is a perspective view showing a wire harness 10 according to the first embodiment. Fig. 2 is a side view showing the wire harness 10 according to the first embodiment. Fig. 3 is a cross-sectional view of the wire harness taken along line III-III in Fig. 1.

[0020] The wiring harness 10 comprises a vehicle-mounted (vehicle-installed) component 20 mounted in or on a vehicle, and electrical cables 30, wherein at least a longitudinally extending portion of the electrical cables 30 is adhesively bonded along the vehicle-mounted component 20.

[0021] In the present description, the vehicle-mounted component 20 is an interior element with an exposed design surface. The interior element can be considered as a cover element that covers a door sill or a pillar or the like. The interior element can also be an installation panel or the like. Furthermore, various types of trim, such as a door trim, a roof trim, or a trunk trim, can also be considered as an interior element. In the Fig. In the example shown in Figure 1, the vehicle-mounted component 20 is a cover element 22 which covers a door sill 80.

[0022] The cover element 22 has an L-shaped cross-section. An outer side surface 23 of the cover element 22 forms a design surface, and an inner side surface 24 of the cover element 22 is arranged opposite a panel of the vehicle body.

[0023] The vehicle-mounted component 20 preferably has a rigid or hard part made of hard plastic. Fig. In the example shown in Figure 1, the cover element 22 is a one-piece molded element made of a hard plastic. In other words, the cover element 22 has only the rigid or hard part. However, the vehicle-mounted component 20 can also have a soft part, e.g., made of a soft plastic or fabric. In this case, the placement surface of the vehicle-mounted component 20, on which the electrical cables 30 are arranged, can be the hard part. Consequently, it is also conceivable for a design surface of the vehicle-mounted component 20 to be a soft part and a back side of the design surface to be a hard part.

[0024] Each of the electrical cables 30 includes a core wire 32 and an insulating cover 34 for covering the core wire 32. The core wire 32 is made of an electrical conductor made of copper, copper alloy, aluminum, aluminum alloy, or the like. The core wire 32 is typically a twisted wire composed of multiple twisted bare wires, but may also be a single core wire composed of only a single wire. The insulating cover 34 is formed, for example, by extruding insulating plastic around the core wire 32. However, the insulating cover 34 may also be formed, for example, by applying an insulating plastic layer around the core wire.

[0025] The electrical cables 30 are arranged such that at least a portion of the electrical cables 30 is laid and bonded along the longitudinal direction to the placement surface of the vehicle-mounted component 20. For example, it is also conceivable for the entire length of the electrical cables 30 to be laid and bonded in the longitudinal direction to the placement surface. Furthermore, it is conceivable for only a central portion of the electrical cables 30 to be laid and bonded in the longitudinal direction to the placement surface, with end portions projecting from the vehicle-mounted component 20. Here, the electrical cables 30 are bonded to a surface of the vehicle-mounted component 20 on the back of the design surface, more specifically, to the aforementioned inner side surface 24 of the cover element 22. Here, the inner side surface 24 is a hard part, and the electrical cables 30 are bonded to this hard part.

[0026] A support structure, such as a channel for easily holding the electrical cables 30, is not formed in the placement surface where the electrical cables 30 are arranged on the vehicle-mounted component 20. However, cases are also conceivable in which a support structure, such as a channel for easily holding the electrical cables 30, is formed in the placement surface.

[0027] There is no particular limitation on the manner in which the electric wires 30 are bonded to the in-vehicle component 20, and various bonding forms can be used. For example, it is conceivable that a resin is melted on a surface of the electric wires 30 and / or the in-vehicle component 20 and they are directly bonded together without any other member being interposed therebetween. However, it is also conceivable, for example, that the electric wires 30 and the in-vehicle component 20 are indirectly bonded to each other with an adhesive layer being provided therebetween. A case in which an adhesive layer is interposed therebetween will be described in detail in the second embodiment.

[0028] When the electrical wires 30 and the vehicle-mounted component 20 are directly bonded together, there is no particular restriction on the method for melting the plastic on the surface, but a method that can melt the plastic locally is preferred. For example, methods such as ultrasonic welding or laser welding can be used to melt the plastic locally.

[0029] When the electrical cables 30 and the vehicle-mounted component 20 are directly bonded to each other, preferably the insulating covers 34 of the electrical cables 30 are not melted, but rather mainly the surface of the vehicle-mounted component 20 is melted. For example, it is conceivable that in a state in which the surface of the vehicle-mounted component 20 is melted, the electrical cables 30 are arranged on the melted part of the surface. When the electrical cables 30 and the vehicle-mounted component 20 are bonded in this way in a state in which mainly the vehicle-mounted component 20 is melted, then at least some of the electrical cables 30 are embedded in the vehicle-mounted component 20, as shown in Fig. 3. There is no particular restriction regarding the embedded area. In the Fig. In the example shown in Figure 3, an area smaller than a quarter of the circumference is embedded, but it is also conceivable for an area larger than a quarter of the circumference to be embedded. In particular, it is also conceivable for an area larger than half the circumference to be embedded, or even for the entire circumference to be embedded. The larger the embedded area, the greater the adhesive force. The smaller the diameter of the electrical cables 30, the easier it is to embed the electrical cables 30.

[0030] The cable harness 10 further comprises a structural part 40 against thermal stresses.

[0031] Typically, the thermal expansion rate (linear expansion coefficient) of hard plastics used as vehicle components is often several to several dozen times greater than the thermal expansion rate of a metal conductor of the core wires 32. Therefore, when a structure in which a hard plastic member and the electric wires 30 are tightly integrated is exposed to low temperatures, thermal stress in a shrinkage direction acts on the electric wires 30 due to shrinkage of the hard plastic member. In the worst case, there is a possibility that the core wire 32 may buckle at a position where the thermal stress is concentrated, and ultimately break.

[0032] The thermal stress structural member 40 is a member that prevents damage to the electrical wires 30 caused by thermal stress due to a difference between the linear expansion coefficients of the electrical wires 30 and the above-described hard part. Here, an intermittent adhesive portion 42 is formed as the thermal stress structural member 40.

[0033] The intermittent bonding portion 42 is a portion in which a plurality of bonded portions 44, where the electric wires 30 and the hard part are bonded together, are provided at intervals along the longitudinal direction of the electric wires 30. In other words, the intermittent bonding portion 42 can be regarded as a portion in which bonded portions 44, where the electric wires 30 and the hard part are bonded together, and non-bonded portions 45, where the electric wires 30 and the hard part are not bonded together, are alternately provided along the longitudinal direction of the electric wires 30. The intervals between the bonded portions 44, where the electric wires 30 and the hard part are bonded together, can be appropriately adjusted, that is, they can be set to equal intervals or partially different intervals.By providing the intermittent bonding portion 42, it is possible to prevent damage to the electric wires 30 due to thermal stress. Specifically, in the non-bonded portions 45 where the electric wires 30 and the hard part are not bonded to each other, the electric wires 30 and the hard part are in a state where they are not bonded to each other, and the non-bonded portions 45 are respectively arranged adjacent to the bonded portions 44, so that the electric wires 30 can bend in the non-bonded portions 45, thus dispersing the thermal stress. Accordingly, damage to the electric wires 30 due to thermal stress can be prevented.

[0034] In the wiring harness 10 described above, the electrical wires 30 and the vehicle-mounted component 20 are connected to each other before being installed in the vehicle. When the vehicle-mounted component 20 in the wiring harness 10 is installed in the vehicle, the electrical wires 30 are also installed in the vehicle. This simplifies the process for installing the electrical wires 30 in a vehicle factory.

[0035] According to the wire harness 10 having the above-described arrangement, the electric wires 30 are bonded to the vehicle-mounted member 20, so that vibrations of the vehicle-mounted electric wires 30 can be suppressed.

[0036] The hard part and the electrical cables 30 can be integrated with each other. The electrical cables 30 can be protected by the hard part.

[0037] If the electrical wires 30 are bonded to a hard part, there is a possibility that the electrical wires 30 will be damaged due to thermal stress. However, in this case, the thermal stress-resistant structural part 40 is provided, so that problems due to thermal stress hardly occur even when the hard part and the electrical wires are integrated with each other. In particular, the intermittent bonding portion 42 is formed as the thermal stress-resistant structural part 40, so that thermal stress is not concentrated in one position.

[0038] The structural part 40 against thermal stresses can also prevent the detachment of the bonded parts 44 due to thermal stresses.

[0039] The electrical cables 30 can be manufactured with the vehicle together with the interior element 22 with the design surface 23. Second embodiment

[0040] A cable harness according to a second embodiment will be described below. Fig. 4 is a cross-sectional view of a wire harness 110 according to the second embodiment. Fig. 5 is a cross-sectional view illustrating a modification of the wire harness 110 according to the second embodiment. In the description of the present embodiment, the same reference numerals as those described above are used for the corresponding elements, and further description thereof is omitted (the same applies to the embodiments described below).

[0041] The wire harness 110 according to the second embodiment shows an example in which the electric wires 30 and the vehicle-mounted component 20 are bonded to each other via an adhesive layer 60.

[0042] The adhesive layer 60 is formed of a material that corresponds to the materials of the surfaces of the electrical cables 30 and the vehicle-mounted component 20 that are to be bonded together. The adhesive layer 60 is provided on a placement surface 24 of the vehicle-mounted component 20. The adhesive layer 60 is also provided on parts of the placement surface 24 of the vehicle-mounted component 20 where the electrical cables 30 are not arranged. Fig. 4, the adhesive layer 60 is provided uniformly on a part of the placement surface of the vehicle-mounted component 20 where the electrical cables 30 are provided, as well as around a part of this area.

[0043] As in Fig. 5, it is also possible that the adhesive layer is provided on one side of the electrical cables 22. In the Fig. In the cable harness 210 shown in Figure 5, an adhesive layer 260 is provided on an outer periphery of the electrical cables 30. In the Fig. In the example shown in Figure 5, the adhesive layer 260 is provided around the entire circumference of the electrical cables 30. Of course, if the adhesive layer 260 is provided on the outer circumference of the electrical cables 30, the adhesive layer 260 may also be provided on only a portion of the electrical cables 30 in the circumferential direction. The adhesive layer 260 is provided with a uniform thickness, but sections of different thickness may also be provided along the circumferential direction.

[0044] It is conceivable that the adhesive layer 60 or 260 can be reversibly changed between a bondable state and a non-bondable state. The adhesive layer 60 or 260 can, for example, contain thermoplastic. Nylon, polypropylene, polyvinyl chloride, ethylene-vinyl acetate copolymer, or the like can be used as the thermoplastic. The thermoplastic can be made of one type of plastic or a mixture of several types of plastic. The melting point of the thermoplastic in the adhesive layers 60 or 260 is preferably lower than the melting point of the plastic in the electrical cables 30 and the plastic in the vehicle-mounted component 20.

[0045] The adhesive layer 60 can, for example, be formed from a material from the same system as the material of the placement surface 24 of the vehicle-mounted component 20 and can be a material that contains a large amount of plasticizer. Thus, the electrical cables 30 can be easily embedded in the adhesive layer 60.

[0046] If the state of the adhesive layer 60 or 260 is reversibly changeable between a bondable state and a non-bondable state, the adhesive layer 60 or 260 is first provided on at least one of the electrical wires 30 and the vehicle-mounted component 20 and is in the non-bondable state. In the bonding step, the state of the adhesive layer 60 or 260, which is previously provided on at least one of the electrical wires 30 and the vehicle-mounted component 20, is then changed from the non-bondable state to the bondable state. When the electrical wires 30 and the vehicle-mounted component 20 are bonded to one another in this state via the adhesive layer 60 or 260, the state of the adhesive layer 60 or 260 is changed again from the bondable state to the non-bondable state.

[0047] More specifically, material containing the molten thermoplastic resin is provided on the electrical wires 30 or the vehicle-mounted component 20, and then cooled and hardened, whereby an arrangement can be achieved in which the adhesive layer 60 or 260 is provided and then assumes a non-bondable state. For example, when the adhesive layer 60 or 260 is provided on the vehicle-mounted component 20, it is conceivable that the material containing the molten thermoplastic resin is applied to the placement surface 24 of the vehicle-mounted component 20. Furthermore, it is conceivable that the vehicle-mounted component 20 is manufactured by two-color injection molding when the vehicle-mounted component 20 is molded with a mold. For example, when the adhesive layer 60 or 260 is provided260 is provided on the electrical cables 30, it is conceivable that the material containing the molten thermoplastic is applied to the outer circumferential surface of the electrical cables 30. Furthermore, it is conceivable that the material containing the molten thermoplastic is extruded around the electrical cables 30.

[0048] Next, the adhesive layer 60 or 260 is heated by a heating method such as applying hot air, so that the adhesive layer 60 or 260 assumes a bondable state, and the electrical wires 30 are arranged on the vehicle-mounted component 20 to bond the electrical wires 30 and the vehicle-mounted component 20 together via the adhesive layer 60 or 260. Thereafter, the adhesive layer 60 or 260 is cooled and cured, allowing it to return to the non-bondable state.

[0049] It is also possible for the adhesive layer 60 or 260 to be heated by a method such as ultrasonic welding or laser welding after the electrical cables 30 have been laid, and thus brought into the bondable state.

[0050] With the cable harnesses 110 and 210 described above, electrical cables 30 and a vehicle-mounted component 20, which are difficult to bond together, can be bonded together in a simple manner using the adhesive layer 60 and 260, respectively.

[0051] If the adhesive layer 60 or 260 contains thermoplastic material, then the previously provided adhesive layer 60 or 260 can be melted by heating and simply bonded.

[0052] In this case, the cable harness 110 can be bonded to an adhesive layer 60 which is provided on the surface of the vehicle-mounted component 20.

[0053] Furthermore, the cable harness 210 can be bonded to an adhesive layer 260 provided on the outer circumference of the individual electrical cables 30. Third embodiment

[0054] A cable harness according to a third embodiment will be described below. Fig. 6 is a side view showing a wire harness 310 according to the third embodiment.

[0055] In the wiring harness 310 according to this embodiment, the structure of the thermal stress-resistant structural part 340 differs from the structure of the thermal stress-resistant structural part 40 in the wiring harness 10 according to the first embodiment. Specifically, the thermal stress-resistant structural part 340 includes a meandering or serpentine section 46 in which the electrical cables 30 meander within the bonding region where the electrical cables 30 are bonded. The electrical cables 30 and the vehicle-mounted component 20 are bonded continuously over the entire meandering section 46. However, the electrical cables 30 and the vehicle-mounted component 20 can also be bonded in sections or intermittently over the entire meandering section 46.For example, an arrangement is conceivable in which the electrical cables 30 and the vehicle-mounted component 20 are each glued at the apex points of the bent sections and the electrical cables 30 and the vehicle-mounted component 20 are not glued in the sections between these apex points.

[0056] Here, the electric wires 30 meander evenly along the longitudinal direction in the meandering portion 46. The electric wires 30 meander in a direction parallel to the direction in which the placement surface 24 extends. However, there is no particular limitation on the shape of the meandering. There may be cases where the electric wires meander widely along the longitudinal direction in one portion and narrowly meander in another portion. There may also be cases where the electric wires 30 meander in a direction normal to the placement surface 24. This case will be described in detail in the following fourth embodiment.

[0057] The meandering portion 46 includes a plurality of bent portions. Thus, when thermal stresses occur, the thermal stresses are distributed among each of the plurality of bent portions. Consequently, the thermal stresses in this wire harness 310 are difficult to concentrate in one location because of the formation of the meandering portion 46 in this wire harness 310. The formation of the meandering portion 46 allows for the compensation of a difference in the expansion and contraction amounts between the electrical wires 30 and the rigid portion due to a difference in their linear expansion coefficients. Fourth embodiment

[0058] A cable harness according to a fourth embodiment will be described below. Fig. 7 and Fig. 8 are vertical cross-sectional views each showing a wire harness 410 according to the fourth embodiment.

[0059] In the wire harness 410 according to the fourth embodiment, a meandering portion 446 is provided as a structural member 440 to protect against thermal stresses. The electrical wires 30 meander within the bonding portion in which the electrical wires 30 are bonded. An example will be described below in which the electrical wires 30 meander in the normal direction of the placement surface 24 in the meandering portion 446. An example will be described in which elastic support portions 50 are provided to support the meandering portion 46.

[0060] The elastic support sections 50 are provided on the vehicle-mounted component 20. In the Fig. In the example shown in Figure 7, the elastic support portions 50 are formed in the shape of a spring (a leaf spring). More specifically, the elastic support portions 50 are formed in a shape including a support column 51 extending on the placement surface 24 in a direction away from the placement surface 24, and a cantilevered arm portion 52 projecting from one end of the support column 51.

[0061] The electrical cables 30 are arranged on the elastic support sections 50 (i.e., on the projecting arm sections 52 thereof). When thermal stresses act on the electrical cables 30, the elastic support sections 50 bend as shown in Fig. 8, so that thermal stresses can be compensated. The electrical cables 30 and the elastic support sections 50 can be glued together or not.

[0062] According to this cable harness 410, a meandering section 446 is formed so that thermal stresses are rarely concentrated in one position. Furthermore, elastic support sections 50 are provided so that the meandering section 446 can be supported.

[0063] It is also conceivable for the elastic support sections 50 to be made of an elastic material, such as rubber or foamed plastic. In this case, the elastic support sections 50 can be manufactured in small pieces and attached to the vehicle-mounted component 20 or the electrical cables 30. Modification example

[0064] Examples are described above in which the thermal stress-resistant structural member is an intermittent adhesive portion 42 or a meandering portion 46. However, it is also conceivable for the thermal stress-resistant structural member to have a different configuration. For example, a case is conceivable in which the above-described adhesive layer 60 is an elastic adhesive layer 60 that simultaneously serves as the thermal stress-resistant structural member. If an elastic adhesive layer 60 is provided as the adhesive layer 60, it is possible to compensate for a difference in expansion (or shrinkage) between the electric wires 30 and the hard part. It is conceivable that the elastic adhesive layer 60 is formed using a so-called elastic adhesive, which consists mainly of, for example, artificial rubber, epoxy resin, or silicone resin.It is also conceivable that a material with a foaming agent is used as a component of the adhesive, which mainly consists of plastic, whereby the plastic serving as the main component is foamed into a plastic foam and thus provided with elasticity.

[0065] In the above description, the state of the adhesive layer 60 can be reversibly changed between a bondable state and a non-bondable state. However, such an arrangement is not mandatory. It is also conceivable that the state of the adhesive layer 60 cannot be changed to the bondable state once the state has been changed from the bondable state to the non-bondable state. Such an adhesive layer 60 contains, for example, a reactive-curing plastic. Examples of such reactive-curing plastics include UV-curing plastics, thermal-curing plastics, moisture-curing plastics, and two-liquid-component reactive-curing plastics. If the adhesive layer 60 contains a reactive-curing plastic, the heat resistance of the bonded parts 44 can be improved.

[0066] In the above description, the adhesive layer 60 is made of a material other than an adhesive, but it is also conceivable that the adhesive layer 60 is made of an adhesive. The adhesive layer 60 can also be formed, for example, by applying a double-sided adhesive tape.

[0067] It is also conceivable that the electrical cables 30 are glued to a soft part of the vehicle-mounted component 20. In this case, it is also possible that the vehicle-mounted component 20 does not have a hard part.

[0068] In the above description, the cable harness includes a structural component to protect against thermal stresses, however, this arrangement is not mandatory. There may also be cases where the structural component to protect against thermal stresses is omitted.

[0069] The arrangements described in the embodiments and the modification examples can be appropriately combined with each other as long as this does not lead to contradictions.

[0070] Although the present invention has been described in detail, the above description is only exemplary and is not intended to be limiting. It should be understood that numerous modifications and variations are possible without departing from the scope of the invention. LIST OF REFERENCE SYMBOLS 10 Cable harness 20 vehicle-mounted component 22 Cover (inner element) 23 outer side surface (design surface) 24 inner side surface 30 electrical cables 32 core wire 34 insulating cover 40 Structural part against thermal stresses 42 intermittent adhesive section 44 glued section 46 meandering section 50 elastic support section 51 Support column 52 cantilevered arm section 60 adhesive layer

Claims

[1] Cable harness (10), comprising: a vehicle-mounted component (20) mounted in or on a vehicle; and a plurality of electrical cables (30), at least one part of which extends along a longitudinal direction is glued to the vehicle-mounted component, wherein the vehicle-mounted component has a hard part formed from hard plastic, and each of the electric cables is separately glued to the hard part in a state in which insulating covers (34) of the electric cables are directly glued to this hard part; characterized by , that: a thermal stress structural part (40) for preventing damage to the electrical cables due to thermal stress caused by a difference in the linear expansion coefficients between the electrical cables and the hard part. [2] A wiring harness according to claim 1, further comprising: an elastic adhesive layer (60) arranged between the electrical cables and the hard part and having elasticity, The elastic adhesive layer also serves as a structural component against thermal stresses. [3] A wire harness according to claim 1 or 2, wherein, as a structural member against thermal stress, an intermittent bonding portion (42) is formed in which a plurality of bonded portions (44) in which the electric wires and the hard part are bonded together are provided at intervals along the longitudinal direction of the electric wires. [4] Cable harness according to one of claims 1 to 3, wherein a meandering section (46) is formed as a structural part against thermal stresses, in which the electrical cables meander in an adhesive region in which the electrical cables are glued. [5] Cable harness according to one of claims 1 to 4, wherein the vehicle-mounted component is an interior element (22) with an exposed design surface (23), and the electrical cables are glued to a surface (24) on a back side of the design surface.

Images