Wiring harness

Abstract

To provide a wiring harness which can fix a first harness body and a second harness body to a vehicle even when a space for fixing the harness bodies to the vehicle is limited.SOLUTION: A wiring harness comprises: a first harness body 30; and a first fixing member 60 which is fixed to a vehicle and houses a portion of the first harness body. The first harness body is a member constituting an electric path. The first fixing member comprises a fitting part. A second fixing member 100 is fitted to the fitting part. The second fixing member is a member for fixing a second harness body 50, separate from the first harness body, to the first fixing member. The second harness body is a member constituting an electric path in another wiring harness separate from the wiring harness mentioned above.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a wire harness. [Background technology]

[0002] For example, Patent Document 1 listed below describes fixing a harness body to a vehicle with a clamp. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-158883 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, the number and types of electric devices installed in vehicles have increased with the trend toward electrification of vehicles. Furthermore, because the space inside a vehicle is limited, there are significant restrictions on where the harness body of a wire harness that supplies power to the electric devices can be fixed. As a result, there is sometimes a lack of space to fix the harness body to the vehicle.

[0005] Therefore, an object of the present invention is to fix the harness body to the vehicle even when the space for fixing the harness body to the vehicle is limited. [Means for solving the problem]

[0006] A wire harness comprising a first harness main body and a first fixing member fixed to a vehicle and accommodating at least a portion of the first harness main body, wherein the first harness main body is a member constituting an electrical path, the first fixing member has an attachment portion, and a second fixing member is attached to the attachment portion, the second fixing member is a member for fixing a second harness main body separate from the first harness main body to the first fixing member, the second harness main body is a member constituting an electrical path in a wire harness separate from the wire harness, the first fixing member has a base member extending along the longitudinal direction of the first harness main body, and a fixing protrusion protruding in a direction perpendicular to the longitudinal direction of the first harness main body is coupled to the base member, the fixing protrusion is arranged adjacent to the attachment portion, and the second harness main body is attached to the attachment portion while being placed on the fixing protrusion. [Effects of the Invention]

[0007] According to the wire harness of the present disclosure, even when the space for fixing the harness body to the vehicle is limited, the first harness body and the second harness body can be fixed to the vehicle. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing an overall configuration of a wire harness according to an embodiment. [Figure 2] FIG. 2 is a perspective view showing a cross section of a harness body according to one embodiment. [Figure 3] FIG. 3 is a perspective view showing a protector portion of the wire harness according to the embodiment. [Figure 4] FIG. 4 is an exploded perspective view showing the configuration of a protector according to one embodiment. [Figure 5] FIG. 5 is a perspective view showing a configuration of a part of the protector according to one embodiment. [Figure 6] FIG. 6 is a perspective view showing the configuration of a clip according to one embodiment. [Figure 7A] FIG. 7A is a perspective view showing a configuration of a clip according to a modified example of the embodiment. [Figure 7B] FIG. 7B is a side view showing the configuration of a clip according to a modified example of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described. The wire harness of the present disclosure includes: [1] A wire harness comprising a first harness main body and a first fixing member fixed to a vehicle and accommodating at least a portion of the first harness main body, wherein the first harness main body is a member constituting an electrical path, the first fixing member has an attachment portion to which a second fixing member is attached, the second fixing member being a member for fixing a second harness main body separate from the first harness main body to the first fixing member, and the second harness main body being a member constituting an electrical path in a wire harness separate from the first harness.

[0010] In the above configuration, the first harness main body is fixed to the vehicle by the fixing member. Furthermore, the second harness main body is fixed to the first fixing member by the second fixing member attached to the mounting portion. That is, another wire harness including the second harness main body is fixed to the wire harness including the first harness main body and the first fixing member. This can suppress the need to secure additional space for contact with the vehicle body due to fixing the second harness main body to the vehicle. Therefore, even when the space for fixing the harness main body to the vehicle is limited, it is possible to fix the first harness main body and the second harness main body to the vehicle.

[0011] [2] It is preferable that the mounting portion has an insertion hole, the second fixing member is a clip that fixes the second harness main body to the first fixing member, the clip has a accommodating portion and an inserting portion, the accommodating portion is a member in which at least a portion of the second harness main body is accommodated, and the inserting portion is a member that is fitted into the inserting hole.

[0012] In the above configuration, the second fixing member is a clip having an insertion portion, whereby the second fixing member, which is a clip, can be fixed to the first fixing member by inserting the insertion portion into the insertion hole.

[0013] [3] The attachment portion is preferably one of a plurality of attachment portions provided on the first fixing member. In the above configuration, the first fixing member has a plurality of attachment portions. Therefore, the second harness main body is fixed near the attachment portions provided at the plurality of locations on the first fixing member. Therefore, the second harness main body can be fixed more reliably than when the first fixing member has only one attachment portion.

[0014] [4] Preferably, the plurality of attachment portions are provided at both ends of the first fixing member in the length direction of the first harness body. In the above configuration, the first fixing member has attachment portions at both longitudinal ends of the first harness main body. Therefore, by attaching the second fixing member to each of the attachment portions, the second harness main body can be fixed near each of the attachment portions. Therefore, the area in which the displacement of the second harness main body is reliably restricted can be maximized.

[0015] [5] The first fixing member preferably has a rib that contacts the vehicle body. The surface of a vehicle body tends to have complex undulations. This can make it difficult to bring one surface of the first fixing member into surface contact with the surface of the vehicle body. Therefore, in the above configuration, a rib that contacts the vehicle body is provided on the first fixing member. This allows the first fixing member to be fixed to the vehicle body by bringing the rib into contact with the vehicle body.

[0016] [6] It is preferable that the first harness body includes a corrugated tube, and the first fixing member has a rib on an inner peripheral surface facing the first harness body. In the above configuration, when the first harness main body attempts to displace in the longitudinal direction, the rib comes into contact with the annular protrusion of the corrugated tube, thereby suppressing the displacement of the first harness main body in the longitudinal direction.

[0017] [Details of the embodiments of the present disclosure] Specific examples of the wire harness of the present disclosure will be described below with reference to the drawings. In each drawing, for convenience of explanation, some of the configuration may be exaggerated or simplified. Furthermore, the dimensional ratios of each part may differ between drawings. Furthermore, "orthogonal" in this specification does not only mean a strict orthogonal relationship, but also includes a case where the wiring harness is roughly orthogonal within a range in which the functions and effects of this embodiment are achieved.

[0018] In addition, "facing" in this specification refers to surfaces or components facing each other, and includes not only cases where they are completely facing each other, but also cases where they are partially facing each other. In addition, "facing" in this specification includes both cases where a component separate from the two components is interposed between the two components, and cases where nothing is interposed between the two components.

[0019] "Overall structure of wire harness" The high-voltage wire harness 10 shown in Fig. 1 is mounted on a vehicle V. The vehicle V may be, for example, an electric vehicle. Alternatively, the vehicle V may be, for example, a hybrid electric vehicle that includes an internal combustion engine in addition to a motor generator 16 as an on-board prime mover.

[0020] The high-voltage wire harness 10 electrically connects an inverter 14 installed in the front of the vehicle V to a high-voltage battery 12 installed behind the inverter 14 on the vehicle V. The high-voltage wire harness 10 is formed in an elongated shape so as to extend in the fore-and-aft direction of the vehicle V.

[0021] The inverter 14 converts the terminal voltage of the high-voltage battery 12, which is a DC voltage source, into AC voltage and applies it to the motor generator 16. The terminal voltage of the high-voltage battery 12 is, for example, several hundred volts. The terminal voltage of the high-voltage battery 12 is higher than that of the low-voltage battery that serves as the power source for the on-board computer.

[0022] The high-voltage wire harness 10 includes connectors 20 and 22, a high-voltage harness body 30, and a protector 60. The connectors 20, 22 are provided at both ends of the high-voltage wire harness 10. The connectors 20, 22 form an interface that electrically connects the high-voltage harness main body 30 to electronic equipment. The high-voltage harness main body 30 is an elongated member that forms an electrical path.

[0023] FIG. 2 shows the configuration of the high-voltage harness main body 30. As shown in FIG. 2, the high-voltage harness main body 30 includes an insulated wire 36. The insulated wire 36 includes a conductive core wire 32 and an insulating coating 34 that surrounds the core wire 32 and has insulating properties. The core wire 32 may be, for example, a stranded wire formed by twisting together a plurality of metal wires. Alternatively, the core wire 32 may be, for example, a single-core wire formed of a single conductor. The insulating coating 34 covers, for example, the outer circumferential surface of the core wire 32 over the entire circumferential direction. The insulating coating 34 is, for example, made of an insulating resin material.

[0024] The high-voltage harness main body 30 includes a corrugated tube 40 surrounding the insulated wires 36. The outer peripheral surface of the corrugated tube 40 constitutes the outer peripheral surface of the high-voltage harness main body 30. The corrugated tube 40 is flexible and therefore easily bendable. The corrugated tube 40 has a bellows structure in which annular recesses 42 and annular protrusions 44 are alternately arranged along its length. Each of the annular recesses 42 and annular protrusions 44 forms a ring that completes one revolution along the circumferential direction of the corrugated tube 40. The corrugated tube 40 can be made of a synthetic resin such as polyolefin, polyamide, polyester, or ABS resin.

[0025] About the Protector FIG. 3 shows an enlarged view of the protector 60 and its vicinity in the high-voltage wire harness 10. A clip 100 is attached to the protector 60. A low-voltage harness main body 50, which constitutes a low-voltage wire harness, is fitted into the clip 100. This secures the low-voltage harness main body 50 to the protector 60. The low-voltage harness main body 50 forms an electrical path for transmitting power supplied by a low-voltage battery. In addition to the low-voltage harness main body 50, the low-voltage wire harness also includes a connector and the like. The protector 60 is made of resin. The material of the protector 60 may be, for example, a synthetic resin such as polyolefin, polyamide, polyester, or ABS resin.

[0026] As shown in FIG. 4 , the protector 60 includes a base member 70 and a lid 90. The base member 70 includes a bottom plate 72 and side walls 74 provided on both sides of the bottom plate 72 in a direction perpendicular to the longitudinal direction. Here, the longitudinal direction corresponds to the longitudinal direction of the high-voltage harness main body 30 when a portion of the high-voltage harness main body 30 is housed in the protector 60. The longitudinal direction of the high-voltage harness main body 30 corresponds to the direction of current flow within the high-voltage harness main body 30. A portion of the high-voltage harness main body 30 is housed in a space defined by the bottom plate 72, the pair of side walls 74, and the lid 90. That is, in a cross section perpendicular to the longitudinal direction of the high-voltage harness main body 30, the entire outer periphery of the high-voltage harness main body 30 is surrounded by the protector 60. That is, in the same cross section, a semi-linear line extending radially from the center of the high-voltage harness main body 30 always intersects the protector 60.

[0027] Ribs 78 are provided at both longitudinal ends of the bottom plate portion 72 and the side wall 74. The ribs 78 are disposed between adjacent annular protrusions 44 that the corrugated tube 40 has.

[0028] A female portion 76 is provided on the side wall 74. A male portion 92 of the lid portion 90 is fitted into the female portion 76. By fitting the male portion 92 into the female portion 76, the lid portion 90 is fixed to the base member 70. This seals the opening that is formed when the lid portion 90 is removed from the protector 60.

[0029] Insertion holes 80 for fitting clips 100 are formed at both longitudinal ends of the side walls 74. A fixing protrusion 82 is coupled to the base member 70 and protrudes in a direction perpendicular to the longitudinal direction.

[0030] As shown in FIG. 5, fixing protrusions 84, 86 are provided on the surface of the base member 70 opposite to the surface facing the lid portion 90. The fixing protrusions 84, 86 are members that are fitted into holes provided in the floor portion F of the vehicle V to fix the protector 60 to the vehicle body. The fixing protrusion 84 is provided on the fixing protrusion 82. The fixing protrusion 86 is provided on an end portion of the base member 70 in the longitudinal direction. The base member 70 is also provided with a rib 88 that comes into contact with the vehicle body. The rib 88 comes into contact with the floor portion F.

[0031] 6 shows the configuration of the clip 100. The clip 100 includes a ring-shaped housing portion 102 and an insertion portion 104. A portion of the low-voltage harness main body 50 is housed in the housing portion 102. That is, in a cross section perpendicular to the longitudinal direction of the low-voltage harness main body 50, the entire outer periphery of the low-voltage harness main body 50 is surrounded by the housing portion 102. In other words, in the same cross section, a semi-linear line extending radially from the center of the low-voltage harness main body 50 always passes through the housing portion 102.

[0032] The insertion portion 104 has a tapered shape that becomes thinner toward the tip. The cross-sectional area of ​​the insertion portion 104 in a cross section perpendicular to the insertion direction Di can be enlarged or reduced. When the insertion portion 104 is fitted into the insertion hole 80, the cross-sectional area is first reduced. Then, when the insertion portion 104 is fitted into the insertion hole 80, the cross-sectional area is expanded. The expanded cross-sectional area is larger than the opening area of ​​the insertion hole 80. Therefore, the clip 100 is prevented from coming off the protector 60.

[0033] "Actions and Effects of the Present Embodiment" The high-voltage wire harness 10 includes a protector 60 in addition to the high-voltage harness main body 30. The protector 60 is fixed to the vehicle body by fitting the fixing protrusions 84, 86 into holes in the vehicle body. This fixes the high-voltage harness main body 30 to the vehicle body. In other words, a portion of the high-voltage wire harness 10 is fixed to the vehicle body.

[0034] Furthermore, the low-voltage harness main body 50 is fixed to the protector 60 by the clip 100. This fixes the low-voltage harness main body 50 to the protector 60. In other words, a low-voltage wire harness including the low-voltage harness main body 50 is fixed to the high-voltage wire harness 10. This prevents the need to secure additional space for contact with the vehicle body due to fixing the low-voltage harness main body 50 to the vehicle. Therefore, even when the space for fixing the wire harness to the vehicle is limited, it is possible to fix the high-voltage wire harness 10 and the low-voltage wire harness to the vehicle.

[0035] According to the present embodiment described above, the following actions and effects can be further obtained. (1) The clip 100 is used as a member for fixing the low-voltage harness main body 50 to the protector 60. The clip 100 has an insertion portion 104 whose cross-sectional area perpendicular to the insertion direction Di can be expanded or contracted. Therefore, the clip 100 can be fixed to the protector 60 simply by inserting the clip 100 into the insertion hole 80 of the protector 60. Therefore, the structure for fixing the clip 100 to the protector 60 can be simplified.

[0036] (2) The protector 60 is provided with multiple insertion holes 80 into which the clips 100 are fitted. This allows the low-voltage harness main body 50 to be fixed to the protector 60 at multiple locations. Therefore, compared to when the protector 60 has only one insertion hole 80, the low-voltage harness main body 50 can be fixed more reliably.

[0037] (3) The protector 60 has insertion holes 80 at both longitudinal ends thereof. Therefore, by fitting the clips 100 into the insertion holes 80, the area in which the displacement of the low-voltage harness body 50 is reliably restricted can be maximized.

[0038] (4) The protector 60 is provided with a rib 88 that contacts the vehicle body. The surface of the vehicle body, such as the floor F, tends to have complex undulations. This can make it difficult to bring one surface of the base member 70 into surface contact with the surface of the vehicle body. Therefore, in this embodiment, the high-voltage harness main body 30 is provided with a rib 88 that contacts the vehicle body. This allows the high-voltage harness main body 30 to be fixed to the vehicle body even if the floor F has undulations.

[0039] (5) The high-voltage harness main body 30 includes a corrugated tube 40. The protector 60 also includes a rib 78 on the inner circumferential surface facing the high-voltage harness main body 30. Therefore, when the high-voltage harness main body 30 is housed in the protector 60, the rib 78 is sandwiched between the adjacent annular protrusions 44 on the outer periphery of the corrugated tube 40. As a result, when the high-voltage harness main body 30 attempts to displace in the longitudinal direction, the rib 78 comes into contact with the annular protrusions 44 of the corrugated tube 40. Therefore, displacement of the high-voltage harness main body 30 in the longitudinal direction is suppressed.

[0040] (6) The protector 60 is provided with the fixing protrusion 82. This allows for greater freedom in the location where the protector 60 is fixed to the vehicle body compared to a case where the fixation protrusion 82 is not provided. Therefore, the protector 60 can be reliably fixed to the vehicle body while complying with the restrictions on the location where the wire harness is fixed to the vehicle body.

[0041] Furthermore, by providing the fixing protrusion 84 on the fixing protrusion 82, the distance between the pair of fixing protrusions 84, 86 provided on the base member 70 can be increased compared to when the fixing protrusion 82 is not provided. Therefore, the protector 60 can be more firmly fixed to the vehicle body.

[0042] <Correspondence> The correspondence between the items in the above "Description of Embodiments of the Present Disclosure" and the items described in the above "Details of Embodiments of the Present Disclosure" section is as follows. Below, the correspondence is shown for each number described in the "Description of Embodiments of the Present Disclosure" section. [1] The first harness main body corresponds to the high-voltage harness main body 30. The first fixing member corresponds to the protector 60. The attachment portion corresponds to the insertion hole 80. The second fixing member corresponds to the clip 100. The second harness main body corresponds to the low-voltage harness main body 50. [2] The insertion portion corresponds to the insertion portion 104. [3, 4] This corresponds to the fact that two insertion holes 80 are provided. [5] The rib corresponds to the rib 88. [6] The corrugated tube corresponds to the corrugated tube 40. The rib corresponds to the rib 78.

[0043] <Other embodiments> This embodiment can be modified as follows: This embodiment and the following modifications can be combined with each other within the scope of technical compatibility.

[0044] "About the first harness body and the second harness body" The corrugated tube 40 constituting the high-voltage harness main body 30 is not limited to being made of resin, but may be made of metal, for example.

[0045] The high-voltage harness main body 30 does not necessarily have to include the corrugated tube 40. For example, the first harness main body may include a resin pipe with a smooth surface. Alternatively, for example, the first harness main body may include a metal pipe with a smooth surface.

[0046] The first harness main body does not necessarily have to be the high-voltage harness main body 30. For example, it may be a low-voltage harness main body 50. The second harness main body does not necessarily have to be the low-voltage harness main body 50. For example, it may be the high-voltage harness main body 30.

[0047] It is not essential that one of the first harness body and the second harness body be the high-voltage harness body 30 and the other be the low-voltage harness body 50. For example, both the first harness body and the second harness body may be high-voltage harness bodies.

[0048] "About the mounting part" It is not essential that the insertion holes 80 be formed at both longitudinal ends of the protector 60. In addition, it is not essential that the number of insertion holes 80 be two.

[0049] The attachment portion does not necessarily have to have an insertion hole 80 with a diameter large enough to prevent the insertion portion 104 from slipping out. For example, the attachment portion may have a bolt fastening hole. This is suitable for application to the clip 110 described in the section "Regarding the second fixing member" below, for example.

[0050] "About the first fixing member" In the above embodiment, the protector 60 is illustrated as having two fixing protrusions 84, 86, but it is not essential that the first fixing member have two members for fixing to the vehicle body. For example, the first fixing member may have three or more members for fixing to the vehicle body. Also, for example, the first fixing member may have only one member for fixing to the vehicle body. Even in this case, depending on the shape of the undulations on the vehicle body, it is possible to firmly fix the first fixing member to the vehicle body by using the undulations as a member for restricting displacement of the first fixing member.

[0051] It is not essential that the first fixing member has the rib 88 that contacts the vehicle body. In the above embodiment, the protector 60 includes the base member 70 and the lid portion 90, but it is not essential that the first fixing member includes a base member and a lid portion that are separable from each other. For example, the base member and the lid portion 90 may be connected by a hinge mechanism.

[0052] The first fixing member does not necessarily have to be provided with a lid that can open and close the accommodation space for accommodating the first harness main body. For example, the first fixing member may be provided with an insertion hole for inserting the first harness main body, without including a lid.

[0053] In the above embodiment, the ribs 78 are provided only on the base member 70, but this is not limiting. For example, ribs may also be provided on the lid portion 90. Alternatively, for example, the base member 70 may not be provided with ribs 78, but the lid portion 90 may be provided with ribs.

[0054] The first fixing member does not necessarily have to be made of resin. For example, it may be made of metal. The vehicle body with which the first fixing member comes into contact is not limited to the floor F. The first fixing member does not necessarily have to be disposed inside the vehicle V. For example, it may be fixed to the floor F by contacting the outside of the vehicle V.

[0055] "About the second fixing member" The clip serving as the second fixing member is not limited to the member having the configuration illustrated in Fig. 6. For example, it may be a clip 110 illustrated in Fig. 7A. The clip 110 shown in Fig. 7A has a first insertion hole 112 and a second insertion hole 114. Then, as shown in Fig. 7B, a bolt 120 is passed through the first insertion hole 112 and the second insertion hole 114 and fastened to the first fixing member, thereby forming an accommodating hole 116 that accommodates the low-voltage harness main body 50.

[0056] "About Wire Harness Applications" It is not essential that the high-voltage wire harness constitute an electrical path that electrically connects the high-voltage battery 12 and the inverter 14. For example, an electrical path that electrically connects the motor generator 16 and the inverter 14 may be constituted. This can be achieved, for example, by arranging the motor generator 16 at the front of the vehicle V and arranging the inverter 14 and the high-voltage battery 12 at the rear of the vehicle V.

[0057] The high-voltage wiring harness does not necessarily have to form a single electrical path. For example, it may form a Y-shaped electrical path that electrically connects the high-voltage battery and two inverters.

[0058] "Wire harness layout" It is not essential that the wire harness constitute a path electrically connecting electronic devices arranged in the front of the vehicle V with electronic devices arranged in the rear of the vehicle V. This can be achieved, for example, in a configuration in which a motor generator is arranged in the front of the vehicle and a high-voltage battery and inverter are arranged in the rear of the vehicle V. In other words, it is sufficient that the wire harness constitutes an electrical path electrically connecting the high-voltage battery and the inverter. Even in this case, by providing a protector on the wire harness, the wire harness can be fixed by the protector. Moreover, another wire harness can also be fixed by the same protector.

[0059] It is not essential that part of the wiring harness be located under the vehicle floor. "Others" The embodiments and modifications disclosed herein are illustrative in all respects, and the present invention is not limited to these examples. That is, the scope of the present invention is defined by the claims, and it is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0060] 10 High voltage wiring harness 12 High-voltage battery 14 Inverter 16 Motor generator 20 Connectors 22 Connectors 30 High voltage harness body 32 core wires 34 Insulation coating 36 Insulated wire 40 Corrugated tube 42 Annular recess 44 Annular convex part 50 Low voltage harness body 60 Protector 70 Base material 72 Bottom plate part 74 Side wall 76 Female part 78 Ribs 80 Insertion hole 82 Fixing protrusion 84 Fixing protrusion 86 Fixing protrusion 88 Ribs 90 Lid 92 Male 100 clips 102 Storage unit 104 Insertion section 110 clips 112 First insertion hole 114 Second insertion hole 116 Receiving hole 120 volts

Claims

1. A wire harness comprising: a first harness body; and a first fixing member fixed to a vehicle and accommodating at least a portion of the first harness body, the first harness body is a member that constitutes an electrical path, the first fixing member includes an attachment portion; a second fixing member is attached to the attachment portion, the second fixing member is a member for fixing a second harness main body separate from the first harness main body to the first fixing member, the second harness main body is a member that constitutes an electrical path in a wire harness different from the wire harness, the first fixing member includes a base member extending along the length direction of the first harness body, a fixing protrusion protruding in a direction perpendicular to the longitudinal direction of the first harness body is coupled to the base member; The fixing protrusion is disposed adjacent to the mounting portion, The second harness body is attached to the attachment portion in a state where the second harness body is placed on the fixing protrusion.

2. The mounting portion includes an insertion hole, the second fixing member is a clip that fixes the second harness body to the first fixing member, The clip includes a receiving portion and an insertion portion; the housing portion is a member that houses at least a portion of the second harness main body, The wire harness according to claim 1 , wherein the insertion portion is a member that is fitted into the insertion hole.

3. The wire harness according to claim 1 or 2, wherein the first fixing member includes a rib that comes into contact with a vehicle body.

4. the first harness body includes a corrugated tube, The wire harness according to claim 1 , wherein the first fixing member has a rib on an inner circumferential surface facing the first harness body.

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