Shield exterior and wire harness provided on the shield exterior
Patent Information
- Application Number
- JP2021045822
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-03-19
- Publication Date
- 2025-03-05
- Estimated Expiration
- 2041-03-19
AI Technical Summary
【0035】 前記構成によれば、電磁シールド機能をもちながら、搬送時に嵩張ることがなく、搬送先において容易に展開して配索することができるシールド外装およびシールド外装に備えられたワイヤーハーネスを提供することができる。
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Abstract
Description
[Technical field]
[0001] The present invention relates to a shield exterior that surrounds from the outside electric wires that are inserted therein, and to a wire harness that includes the shield exterior and the electric wires. [Background technology]
[0002] 2. Description of the Related Art In electric vehicles and hybrid vehicles, wire harnesses with high withstand voltage (hereinafter referred to as "high voltage harnesses") are used to transmit high electric power to high voltage components.
[0003] For example, when connecting a battery and a motor, the high-voltage harness is generally formed long, i.e., large, because a middle portion in the longitudinal direction X is routed vertically in the front-rear direction under the vehicle floor. Furthermore, in both sides of the above-mentioned routed portion under the vehicle floor in the longitudinal direction X of the high-voltage harness, the harness is routed while bypassing surrounding in-vehicle devices until it reaches the battery and motor, so that the harness often has a shape that is bent and deformed in various directions. For this reason, wire harnesses such as high voltage harnesses may become bulky when transported from the manufacturing site to the wiring site.
[0004] However, in order to enhance the wire routing regulation function and wire protection function of the exterior members provided in wire harnesses such as high-voltage harnesses, almost the entire longitudinal direction is often formed from a hard member (main electromagnetic shielding portion) such as a metal pipe, as exemplified by the exterior member (cylindrical shielding means) disclosed in Patent Document 1.
[0005] For this reason, it is difficult to make a wire harness equipped with such a shield exterior, including the wire harness disclosed in Patent Document 1, into a compact form, and there is a concern that it may not be possible to transport it efficiently. [Prior art documents] [Patent documents]
[0006] [Patent Document 1] Patent No. 3909763 Summary of the Invention [Problem to be solved by the invention]
[0007] The present invention has been made in view of the above problems, and has an object to provide a shield exterior that has an electromagnetic shielding function but is not bulky and can be transported, and a wire harness provided with the shield exterior. [Means for solving the problem]
[0008] The present invention relates to a wire harness including a cylindrical shield exterior having electromagnetic shielding properties and an electric wire inserted into the inside of the shield exterior, the shield exterior including a plurality of rigid cylindrical bodies having a first electromagnetic shielding portion that exhibits the electromagnetic shielding properties, and a flexible cylindrical body that is arranged between adjacent rigid cylindrical bodies and connects ends of the rigid cylindrical bodies on both sides that face each other, and a second electromagnetic shielding portion that exhibits the electromagnetic shielding properties is provided between the adjacent rigid cylindrical bodies, the second electromagnetic shielding portion being electrically conductively connected to each of the rigid cylindrical bodies on both sides, surrounding the outside of the inserted electric wire, and providing the electromagnetic shielding properties. The second electromagnetic shielding portion is provided on the flexible tubular body, and the flexible tubular body having the second electromagnetic shielding portion is configured as a tubular braided body formed by weaving metal wires into a tubular shape. A cover body is provided to cover the flexible tubular body from the outside, and the cover body is a hard cover body and is attached between ends of adjacent hard tubular bodies, and the hard cover body includes a straight cover body formed corresponding to a straight portion of a wiring path and a curved cover body formed corresponding to a curved portion of the wiring path. The present invention is characterized by the above.
[0009] According to the above configuration, the wire harness can be folded compactly as a whole by bending and deforming the flexible tubular body provided between the adjacent hard tubular bodies in the longitudinal direction of the shield exterior.
[0010] Furthermore, since the second electromagnetic shielding section provided between adjacent rigid cylindrical bodies (at a location corresponding to the location of the flexible cylindrical body in the longitudinal direction of the shield exterior) and the first electromagnetic shielding section provided on the rigid cylindrical body are conductively connected, the shield exterior can ensure electromagnetic shielding properties between adjacent rigid cylindrical bodies and between these rigid cylindrical bodies. Therefore, according to the above-mentioned configuration, while having an electromagnetic shielding function, it can be transported without being bulky.
[0011] Furthermore, since the second electromagnetic shielding portion is configured to be provided on the flexible cylindrical body, an electromagnetic shielding effect can be obtained between adjacent rigid cylindrical bodies and the flexible cylindrical bodies that are conductively connected to them, without providing a separate member other than the flexible cylindrical bodies that constitutes the second electromagnetic shielding portion between adjacent rigid cylindrical bodies.
[0012] Furthermore, since the flexible tubular body having the second electromagnetic shielding portion is composed of a tubular braided body in which metal wires are woven and formed into a tubular shape, it is possible to form the flexible tubular body having both excellent electrical conductivity and flexibility.
[0013] In addition, since a cover body is provided to cover the flexible tubular body from the outside, the flexible tubular body can be protected by the cover body, and thus the protective function of the electric wire inserted inside the flexible tubular body can be enhanced.
[0014] Furthermore, since the cover body is a hard cover body, when the wire harness is arranged along the wiring path, the hard cover body can ensure the path control function of the electric wire between adjacent hard tubular bodies and protect the flexible tubular body.
[0015] The electric wire may be one or more, and does not have to have electromagnetic shielding properties by itself. In addition, when two electric wires are provided, they may be twisted pair electric wires twisted together.
[0016] Here, the hard cylindrical body is formed to be harder than the flexible cylindrical body, and when routed along the wiring path, has the rigidity (shape retention) to regulate the path of the electric wire inserted inside. On the other hand, the flexible cylindrical body is formed to be more flexible than the hard cylindrical body, and has a rigidity that allows bending deformation.
[0017] In this specification, "transport" is not limited to the transportation of a wire harness between different facilities or work sites, but also includes the movement of a wire harness within the same facility or work site.
[0018] As an aspect of the present invention, the flexible cylindrical body may be configured to be fitted onto an end of the rigid cylindrical body, and a fixing body may be provided to fix the fitted flexible cylindrical body to the rigid cylindrical body.
[0019] According to the above configuration, the end of the flexible tubular body can be firmly fixed to the end of the rigid tubular body, and therefore the flexible tubular body and the rigid tubular body can be kept connected to each other without being separated unintentionally during transportation or installation.
[0020] As a further aspect of the present invention, the cover body may be configured to cover a portion of the flexible tubular body in a circumferential direction from the outside. According to this configuration, the cover body can effectively protect the areas in the circumferential direction of the flexible tubular body that require protection.
[0021] As a further aspect of the present invention, the flexible tubular body may be configured so as to be able to be arranged on a straight portion of a wiring path.
[0022] According to the above-mentioned configuration, the flexible cylindrical body arranged in the straight portion is bent and deformed to make the shielding exterior compact, so that it can be transported efficiently.
[0023] Furthermore, as described above, since the straight portion is bendable and deformable, when the wire harness is routed along a routing path in a vehicle body, the straight portion having the flexible tubular body and its surrounding area in the wire harness can be handled with greater freedom.
[0024] Therefore, when the wire harness is routed, the wire harness can be easily routed while avoiding interference between the wire harness and vehicle body parts located around the route.
[0025] As a further aspect of the present invention, the flexible tubular body may also be provided at an end portion of the shield exterior.
[0026] According to the above configuration, when the ends of the electric wires are connected to the respective electric wire connection points of the battery and the motor in the vehicle body, the electric wires extending from the ends of the shield exterior to the electric wire connection points can be protected by being covered by the flexible cylindrical body.
[0027] Furthermore, even if the shielding exterior vibrates due to vehicle body vibration or the like, the flexible cylindrical body can absorb the vibration from the shielding exterior to the electric wire connection point, thereby preventing the influence of the vibration of the shielding exterior from reaching the electric wire connection point.
[0028] The present invention also provides a shielding exterior that is tubular and has electromagnetic shielding properties, and has electric wires inserted therein to constitute the above-mentioned wire harness, the shielding exterior comprising a plurality of rigid cylindrical bodies that are rigid and provided with a first electromagnetic shielding portion, and flexible cylindrical bodies that have flexibility and connect the rigid cylindrical bodies to each other, and is characterized in that a second electromagnetic shielding portion is provided between the rigid cylindrical bodies arranged on both sides of the flexible cylindrical body, the second electromagnetic shielding portion being conductively connected to each of the rigid cylindrical bodies on both sides and surrounding the outside of the electric wires that are inserted therethrough.
[0029] According to this configuration, the flexible cylindrical body provided between adjacent hard cylindrical bodies in the longitudinal direction is bent and deformed, so that the entire device can be folded compactly.
[0030] Furthermore, since the second electromagnetic shielding portion provided between adjacent rigid cylindrical bodies (at a location corresponding to the location of the flexible cylindrical body in the longitudinal direction) and the first electromagnetic shielding portion provided on the rigid cylindrical body are conductively connected, electromagnetic shielding can be ensured between adjacent rigid cylindrical bodies and between these rigid cylindrical bodies. Therefore, according to the above-mentioned configuration, while having an electromagnetic shielding function, it does not become bulky during transportation and can be easily deployed and installed at the destination.
[0031] As a further aspect of the present invention, the flexible cylindrical body having the second electromagnetic shield portion may be configured with a shielded corrugated tube made of resin having electromagnetic shielding properties and flexibility. According to the above-mentioned configuration, the flexible cylindrical body can be configured to have durability in addition to electrical conductivity and flexibility.
[0032] As a further aspect of the present invention, a cover may be provided to cover the flexible tubular body from the outside, and the second electromagnetic shield portion may be provided on the cover. According to the above configuration, the flexible tubular body can be protected by the cover body, and thus the function of protecting the electric wires inserted inside the flexible tubular body can be improved.
[0033] Furthermore, according to the above configuration, even if the second electromagnetic shielding portion is not provided on the flexible cylindrical body, the second electromagnetic shielding portion provided on the cover body can ensure electromagnetic shielding between adjacent rigid cylindrical bodies.
[0034] As a further aspect of the present invention, the cover body may be a flexible cover body having flexibility. According to the above configuration, the flexible tubular body can be protected by the flexible cover body while maintaining the flexibility of the shield exterior between the adjacent rigid tubular bodies. Effect of the Invention
[0035] According to the above configuration, it is possible to provide a shield exterior and a wire harness equipped with the shield exterior that have electromagnetic shielding function, are not bulky during transportation, and can be easily unfolded and arranged at the destination. [Brief description of the drawings]
[0036] [Figure 1] FIG. 2 is a side view showing a main part of the wire harness according to the embodiment. [Diagram 2] FIG. 2 is a perspective view showing a main part of the wire harness according to the embodiment. [Diagram 3] FIG. 3 is an exploded perspective view showing the cover body in FIG. 2; [Figure 4] 2 is a side view showing a flexible tubular body and its surroundings of the wire harness of the embodiment, partially in cross section. FIG. [Diagram 5] 5(a) is a cross-sectional view taken along line AA in FIG. 4, and FIG. 5(b) is a diagram showing the configuration of Modification 4 in correspondence with FIG. 5(a). [Figure 6] 3 is a perspective view showing a main part of the wire harness according to the embodiment, which is different from that in FIG. 2. [Figure 7] 7 is a perspective view showing a state in which a portion of the wire harness according to the embodiment corresponding to FIG. 6 is folded. [Figure 8] 5 is a diagram showing a main part of a wire harness according to a first modified example, corresponding to FIG. 4. [Figure 9] FIG. 5 is a diagram showing a main part of a wire harness according to a second modified example, corresponding to FIG. [Figure 10] FIG. 5 is a diagram showing a main part of a wire harness according to a third modified example, corresponding to FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0037] An embodiment of the present invention will now be described with reference to the drawings. As shown in Figures 1 and 2, the wire harness 1 of this embodiment includes a cylindrical shield exterior 10 having electromagnetic shielding properties, and one or more (two in this example) electric wires 2 inserted into the inside of the shield exterior 10. Although not shown, the wire harness 1 of this embodiment is a high-voltage wire harness that connects a battery and a motor in an electric vehicle or a hybrid vehicle, and a longitudinal middle portion of the wire harness 1 is routed, for example, under the floor of the vehicle. Although not shown, the wire harness 1 is arranged in a substantially straight line so as to run vertically in the front-rear direction under the floor of the vehicle. In this embodiment, the wire harness 1 is connected to a battery and a motor, but is not limited thereto. Furthermore, in the following description, the motor side is set to one side Xa (one end side Xa) and the battery side is set to the other side Xb (the other end side Xb) in the arrangement path R of the wire harness 1.
[0038] The wiring path R of the wire harness 1 has a plurality of straight portions Rs having various lengths according to wiring locations in a vehicle body, and a plurality of bent portions Rt having various bend shapes (bend angles, bend radii).
[0039] Two (a pair of) electric wires 2 are arranged so that the distance between them is substantially constant along the longitudinal direction, i.e., substantially in parallel. As shown in Fig. 1 and Fig. 2, these two electric wires 2 are collectively surrounded by a shield exterior 10. In this embodiment, the two electric wires 2 have the same structure and size, so the description will be given based on one of the electric wires 2.
[0040] The electric wire 2 is a high-voltage electric wire capable of handling high voltage and large current, and as shown in FIG. 5(a), is composed of a conductor portion 121 formed by bundling a plurality of conductive core wires, and an insulating coating portion 122 having insulating properties and covering the entire outer periphery of the conductor portion 121.
[0041] The electric wire 2 of the present embodiment is a non-shielded electric wire that does not have an electromagnetic shield structure in the electric wire 2 itself. However, the electric wire 2 may be a shielded electric wire that is provided with an electromagnetic shield structure, for example, by covering with a conductive braided member.
[0042] 1, the electric wire 2 has both ends 2a, 2b in the longitudinal direction (axial direction) near the ends 2a, 2b extending from the ends 10a, 10b of the shield exterior 10. Although not shown, a terminal fitting provided at one end 2a in the longitudinal direction of the electric wire 2 is connected to a predetermined terminal attachment portion of a connector or the like provided on the motor side. Meanwhile, a terminal fitting provided at the other end 2b in the longitudinal direction of the electric wire 2 is connected to a predetermined terminal attachment portion of a connector or the like provided on the battery side.
[0043] The shield exterior 10 surrounds the electric wires 2 over substantially the entire length of the wiring path R of the wire harness 1 between the motor and the battery. In the following description, the longitudinal direction of the shield exterior 10 is designated X, the radial direction is designated Y, and the circumferential direction is designated Z.
[0044] As shown in Figures 3 to 5(a), the shielding exterior 10 includes a plurality of rigid cylindrical bodies 11 formed to be rigid so as to protect the electric wires 2, a plurality of flexible cylindrical bodies 21 (see Figures 3, 4, and 5(a)) formed to be flexible, and a cover body 31 that covers the flexible cylindrical bodies 21 from the outside.
[0045] 1, the hard cylindrical body 11 and the flexible cylindrical body 21 are arranged in series and alternately along the longitudinal direction X of the shield exterior 10. As shown in Fig. 4, the hard cylindrical body 11 is formed in a cylindrical shape with an inner diameter large enough to insert an electric wire 2 (two electric wires 2 in this example) therein, and is integrally formed to have a two-layer structure including a cylindrical conductive main body portion 12 having conductivity and an insulating outer layer portion 13 covering the entire circumference of the conductive main body portion 12 from the outside.
[0046] When arranged along the wiring path R of the wire harness 1, the hard cylindrical body 11 has a rigidity that can protect the electric wires 2 from flying stones and the like and can hold the electric wires 2 along the wiring path R (can regulate the path so that they cannot bend or deform).
[0047] The conductive main body 12 is an aluminum pipe made of aluminum over the entire length and circumference of the cylindrical hard tubular body 11. As a result, the hard tubular body 11 has a first electromagnetic shield part 14 that exhibits electromagnetic shielding properties.
[0048] The insulating outer layer portion 13 is a resin layer formed from an insulating material (a resin member) on the outer side of the conductive main body portion 12 in the radial direction Y so as to form an outer layer of the hard cylindrical body 11.
[0049] The rigid cylindrical body 11 has exposed conductor ends 12a, 12b at both ends in the longitudinal direction X, where the conductive main body portion 12 is exposed, and the area between these exposed conductor ends 12a, 12b is covered with an insulating outer layer portion 13.
[0050] 4, the rigid cylindrical body 11 has the conductive main body 12 exposed to the insulating outer layer 13 over the entire circumference at both ends in the longitudinal direction X. In this manner, the ends of the conductive main body 12 exposed to the insulating outer layer 13 are set as exposed conductor ends 12a and 12b.
[0051] In this embodiment, the conductive main body 12 is made of aluminum, but is not limited to aluminum as long as it is conductive, and a metal type such as iron, copper, or stainless steel may be appropriately selected depending on the placement location, or it may be configured to include a conductive material other than a metal, such as graphite.
[0052] In addition, the rigid cylindrical body 11 in this embodiment is formed in a perfect circular shape when viewed in a cross section perpendicular to the longitudinal direction X (axial direction) (hereinafter referred to as "orthogonal cross section"), but the rigid cylindrical body of the present invention is not limited to this and may be formed in, for example, an elliptical shape, an oval shape, or a polygonal shape such as a square shape. Furthermore, the hard cylindrical body of the present invention does not necessarily require the insulating outer layer portion 13, and it is sufficient that the hard cylindrical body of the present invention is provided with at least the conductive main body portion 12 out of the conductive main body portion 12 and the insulating outer layer portion 13.
[0053] As shown in FIG. 1, a clamp 4 is attached to a predetermined one of the plurality of rigid cylindrical bodies 11 as an attachment member for attaching the wire harness 1, which is routed along a predetermined routing path R in the vehicle body, to the vehicle body.
[0054] The clamp 4 has a known structure having a holding portion 5 held by a hard cylindrical body 11, and an anchor portion 6 as a vehicle body mounting portion that is mounted to a predetermined mounting location A on the vehicle body. The holding portion 5 includes a band portion 5a that is wound around the hard cylindrical body 11, and a buckle portion 5b that locks the band portion 5a wound around the hard cylindrical body 11.
[0055] The anchor portion 6 is provided with a support plate portion 6b and an elastic locking piece 6a, which are used to clamp the edge portion Aa of the anchor hole Ah from both sides, thereby being attached to the edge portion Aa of the anchor hole Ah.
[0056] In this way, by attaching the clamp 4 to the vehicle body while it is attached to the hard cylindrical body 11, the wire harness 1 can be attached to the vehicle body while the hard cylindrical body 11 restricts the electric wires 2 along the wiring path R. This is preferable.
[0057] The mounting members such as the clamp 4 for mounting the wire harness 1 to the vehicle body are not limited to being provided separately so as to be attachable to the hard cylindrical body 11, but may be integrally formed. The mounting members such as the clamp 4 are not limited to being provided on the hard cylindrical body 11, but may be provided on a hard cover body 31 described later.
[0058] As shown in FIGS. 1 to 3, the hard cylindrical body 11 of the present embodiment is formed in a straight line shape corresponding to a predetermined straight line portion Rs in the wiring path R of the wire harness 1.
[0059] Incidentally, the multiple straight line portions Rs in the wiring path R of the wire harness 1 include relatively long straight line portions Rs such as the portion (underfloor straight line portion Rs) that is wired in a straight line so as to traverse the underfloor in the front-rear direction as described above. The shield exterior 10 arranged in such a relatively long straight line portion Rs is divided as evenly as possible into multiple portions each having a predetermined length equal to or shorter than any of the relatively short straight line portions Rs.
[0060] Furthermore, when the multiple rigid cylindrical bodies 11 are formed to have lengths corresponding to sections that are approximately equally divided in the longitudinal direction of the shield exterior 10, it is possible to standardize parts among the multiple rigid cylindrical bodies 11. However, although it is preferable that the multiple hard cylindrical bodies 11 are formed to have the same length as much as possible, they may be configured to have different lengths.
[0061] As shown in Figs. 4 and 5, the flexible tubular body 21 is formed in a straight, tubular shape with an inner diameter large enough to allow the electric wires 2 (two electric wires 2 in this example) to pass therethrough.
[0062] In this embodiment, the flexible tubular body 21 is formed of a flexible and conductive tubular braided body over the entire length and circumference, and thus has a second electromagnetic shield portion 24 that exhibits electromagnetic shielding properties.
[0063] The tubular braid is a flexible cylindrical braid formed by braiding tin-plated copper wires 21w (see FIG. 4), that is, tin-plated copper wires 21w. In addition, the tubular braid as the flexible tubular body 21 is not limited to a braided member formed by braiding tin-plated copper wire 21w as in this embodiment, but may be an unplated one or other metal type such as aluminum (i.e., an aluminum braid formed by braiding aluminum wires).
[0064] Moreover, the flexible tubular body 21 is formed so as to be capable of being bent and deformed at any angle in any direction from the state in which it is arranged in a straight line as shown in Fig. 6. As a result, the wire harness 1 can be folded into a compact shape as shown in Fig. 7, for example, by bending back the flexible tubular body 21 (bending and deforming it by approximately 180 degrees) from the state in which it is arranged in a straight line as shown in Fig. 6.
[0065] Furthermore, as shown in FIGS. 1 to 3, the flexible tubular body 21 has flexibility that allows it to be bent and deformed in accordance with a bent portion Rt in the wiring path R of the wire harness 1. However, the flexible tubular body 21 is not limited to being disposed at the bent portion Rt in the wiring path R of the wire harness 1, and may be disposed at a straight portion Rs (see the same figure). In that case, the flexible tubular body 21 is formed to have a length corresponding to the straight portion Rs where it is disposed.
[0066] In addition, the cylindrical flexible tubular body 21 is arranged between adjacent hard tubular bodies 11a, 11b in the longitudinal direction X of the shield exterior 10 (see Figure 4) so as to surround the outside of the electric wire 2 over its entire length and entire circumference, as shown in Figure 5 (a).
[0067] As shown in FIG. 4, the shield exterior 10 is connected to the opposing ends (12b, 21a), (12a, 21b) of adjacent rigid cylindrical bodies 11a, 11b in the longitudinal direction X and the flexible cylindrical body 21 interposed between these rigid cylindrical bodies 11a, 11b.
[0068] Specifically, as shown in FIG. 4, one end 21a of the flexible cylindrical body 21 is connected to an exposed conductor end 12b facing the one end 21a of an adjacent rigid cylindrical body 11a (hereinafter also referred to as the "one-side rigid cylindrical body 11a") on one side Xa of the longitudinal direction X to the flexible cylindrical body 21, and the other end 21b of the flexible cylindrical body 21 is connected to an exposed conductor end 12a facing the other end 21b of an adjacent rigid cylindrical body 11b (hereinafter also referred to as the "other-side rigid cylindrical body 11b") on the other side Xb of the longitudinal direction X to the flexible cylindrical body 21.
[0069] Since the flexible cylindrical body 21 is connected to each of the adjacent rigid cylindrical bodies 11a, 11b on both sides using the same connecting structure, only the connecting structure between one end 21a of the flexible cylindrical body 21 and the exposed conductor end 12b of the rigid cylindrical body 11a on one side will be described in more detail.
[0070] The exposed conductor end 12b of the one-side hard cylindrical body 11a is inserted into one end 21a of the flexible cylindrical body 21 through the opening 22a in the one end 21a. As a result, the one end 21a of the flexible cylindrical body 21 is fitted onto the exposed conductor end 12b of the one-side hard cylindrical body 11a.
[0071] Furthermore, by tying one end 21a of the flexible cylindrical body 21 from the outside with a metal cable tie 23 as a fixing body, the one end 21a of the flexible cylindrical body 21 is fixed to the exposed conductor end 12b of the one side hard cylindrical body 11a.
[0072] Here, the conductive exposed conductor end 12b of the one-side rigid cylindrical body 11a is exposed from the insulating outer layer portion 13, and therefore, as described above, when it is fixed to one end 21a of the flexible cylindrical body 21 by a cable tie 23 around its entire circumference, the exposed conductor end 12b and one end 21a are electrically connected to each other. As a result, the flexible cylindrical body 21 and the one-side hard cylindrical body 11a are connected with their respective ends 21a, 12b being electrically conductive.
[0073] In addition, the above-mentioned fixing body is not limited to the metal cable tie 23 as in this embodiment, as long as it is a means that can fix the opposing ends of the flexible cylindrical body 21 and the rigid cylindrical body 11 while ensuring conductivity between them, and for example, a resin cable tie, tape wrapped around one end 21a, a clamp that fixes them by sandwiching them between a pair of half-shaped divided bodies, adhesive, welding, or a combination of these may be used.
[0074] As described above, both the flexible cylindrical body 21 and the rigid cylindrical body 11 (conductive main body portion 12) are conductive over their entire length and circumference, and the flexible cylindrical body 21 is connected to the adjacent rigid cylindrical bodies 11a, 11b on both sides in the longitudinal direction X in a state in which conductivity is ensured. Therefore, the shield exterior 10 has electromagnetic shielding properties over its entire length and circumference, thereby blocking electromagnetic waves radiated from the electric wire 2 and electromagnetic waves from the outside.
[0075] 1, a conductive and flexible tubular braided body is connected as a flexible tubular body 21e to both ends 10a, 10b in the longitudinal direction X of the shield exterior 10. The flexible tubular body 21e surrounds the vicinity of the ends 2a, 2b of the electric wire 2 in the longitudinal direction.
[0076] Although not shown, at least one end (10a, 10b) of the shield exterior 10 in the longitudinal direction X is grounded (earthed) to a ground circuit on the vehicle body side as a noise countermeasure. Here, it is preferable that both ends of the shield exterior 10 in the longitudinal direction X are grounded to the ground circuit. However, as described above, it is preferable that one end (10a, 10b) of the shield exterior 10 in the longitudinal direction X is grounded to a ground circuit, but it may be configured not to be grounded. Also, a portion of the shield exterior 10 other than both ends 10a, 10b may be grounded to a ground circuit.
[0077] As shown in FIGS. 1 to 5(a), the cover body 31 is attached to the flexible tubular body 21 from the outside. However, as shown in FIG. 1, the flexible cylindrical bodies 21e provided at both ends 10a, 10b in the longitudinal direction X of the shield exterior 10 are not covered with the cover body 31, so that the flexibility of both ends 10a, 10b is maintained.
[0078] The cover body 31 of this embodiment is formed as a hard cover body having rigidity over the entire circumference and length capable of restricting the flexible tubular body 21 and the electric wire 2 inserted inside the flexible tubular body 21 to a state in which they are routed along the routing path R. Furthermore, the cover body 31 of this embodiment is entirely formed of an insulating (i.e., non-conductive) resin material.
[0079] The cover body 31 of this embodiment is provided with a straight-line cover body 31s formed to correspond to a predetermined straight-line portion Rs in the wiring path R of the wire harness 1, and a bent-line cover body 31t formed to correspond to a predetermined bent portion Rt.
[0080] That is, the cover body 31 is provided with both a straight-line shaped cover body 31s and a bent-line shaped cover body 31t in correspondence with the fact that the flexible tubular body 21 of this embodiment is positioned in both the bent portion Rt and the straight portion Rs in the wiring path R of the wire harness 1.
[0081] As shown in Figures 2 and 5(a), the cover body 31 is formed so as to be approximately circular, i.e., cylindrical, when viewed in the orthogonal cross section, and as shown in Figures 3 and 5(a), it is formed having multiple (two in this example) divided bodies 32 (32A, 32B).
[0082] The pair of divided bodies 32 are formed so that the substantially circular cover body 31 is substantially divided into two equal parts in the orthogonal cross section, that is, so that the pair of divided bodies 32 are substantially semicircular in the orthogonal cross section over the entire length in the axial direction (longitudinal direction X). In this embodiment, the pair of divided bodies 32 in the linear cover body 31s are formed to have the same shape.
[0083] As shown in FIG. 4 and FIG. 5(a), the cover body 31 is formed in a size capable of surrounding the flexible tubular body 21 over its entire length and entire circumference.
[0084] 4, the cover body 31 is formed to be slightly longer than the distance between the opposing ends 13a, 13b of the insulating outer layer portions 13 provided on the adjacent rigid cylindrical bodies 11a, 11b. Furthermore, the cover body 31 is formed to have a slightly larger diameter than the rigid cylindrical body 11 so that the inner surface 33 abuts against the outer surface 15 of the rigid cylindrical body 11 along the circumferential direction Z. In other words, the cover body 31 is formed so that the inner diameter is equivalent to the outer diameter of the rigid cylindrical body 11.
[0085] Furthermore, as shown in FIG. 5(a), the cover body 31 has an engagement structure formed at each of the two ends 34 (first butt end 34A and second butt end 34B) where the pair of split bodies 32 are butted together, as a means for holding the pair of split bodies 32 together so that they do not separate from each other.
[0086] Specifically, at the first butt end 34A, an engagement structure is constituted by an engagement protrusion 35a formed at the end on one of the dividers 32A side and an engagement recess 35b formed at the end on the other divider 32B side so as to be able to engage with the engagement protrusion 35a.
[0087] In addition, at the second butt end 34B, an engagement structure is formed by an engagement protrusion 35a formed at the end on the other divider 32B side and an engagement recess 35b formed at the end on the one divider 32A side so as to be able to engage with the engagement protrusion 35a.
[0088] The engagement structures (35a, 35b) provided on the first butt end portion 34A and the second butt end portion 34B are shown only in FIG. 5(a) and are omitted in the other drawings.
[0089] 3, when the cover body 31 is attached to the outside of the flexible tubular body 21, the pair of divided bodies 32 are arranged to sandwich the flexible tubular body 21 from both sides in the orthogonal cross-sectional view. Furthermore, as shown in FIG. 5(a), the engaging protrusions 35a and the engaging recesses 35b at the first butt end portion 34A and the second butt end portion 34B are engaged with each other, so that the pair of divided bodies 32 are held together.
[0090] Furthermore, in this state, as shown in Figure 4, the cover body 31 straddles between the opposing ends 13a, 13b of the insulating outer layer portions 13 of adjacent rigid cylindrical bodies 11a, 11b, and the inner surfaces 33 of both ends 31a, 31b in the longitudinal direction X abut against the outer surfaces 15 of the opposing ends 13a, 13b of the insulating outer layer portions 13 of the corresponding rigid cylindrical bodies 11 along the circumferential direction Z.
[0091] In addition, the means for holding the pair of divided bodies 32 so as not to separate from each other when the cover body 31 is attached to the flexible cylindrical body 21 from the outside is not limited to the above-mentioned engagement structure, and may be, for example, a cable tie for binding the cover body 31 in a state where it is wrapped around the outside in the circumferential direction Z, a wrapping tape, a clamp for clamping the cover body 31 from the outside, an adhesive for bonding the butted ends of the first butt end 34A and the second butt end 34B of the pair of divided bodies 32, or welding for fusing them together, or a combination of these structures. In addition, the cover body of the present invention is not limited to a divided structure having a plurality of divided bodies 32 (32A, 32B) like the above-mentioned cover body 31, and may be configured as a cylindrical body that is not divided in the circumferential direction and is configured to surround the electric wire 2 from the outside by inserting it inside.
[0092] The cover body 31 described above can cover the flexible cylindrical body 21 and the connection portion of the rigid cylindrical body 11 with the flexible cylindrical body 21 (exposed conductor ends 12a, 12b) from the outside in the radial direction Y over the entire circumference and entire length.
[0093] Furthermore, since the insulating outer layer 13 of the hard cylindrical body 11 and the cover body 31 made of an insulating material appear alternately along the longitudinal direction X (see FIG. 1), the entire outer surface (surface) of the shield exterior 10 can be covered with insulating material over the entire circumference and length of the shield exterior 10.
[0094] Therefore, the wire harness 1 can be configured such that even if it comes into electrical contact with surrounding electric devices or conductive members such as electric wires, it does not adversely affect these conductive members.
[0095] As shown in Fig. 1 to Fig. 5(a), the wire harness 1 of the above-mentioned embodiment includes a cylindrical shielding exterior 10 having electromagnetic shielding properties, and an electric wire 2 inserted into the inside of the shielding exterior 10. As shown in Fig. 4, the shielding exterior 10 includes a plurality of hard cylindrical bodies 11 having a first electromagnetic shielding portion 14 exhibiting the electromagnetic shielding properties, and a flexible cylindrical body 21 having flexibility, which is disposed between adjacent hard cylindrical bodies 11 and connects the ends (12b, 21a) (12a, 21b) facing the hard cylindrical bodies 11 on both sides, and as shown in Fig. 4 and Fig. 5(a), between adjacent hard cylindrical bodies 11, the flexible cylindrical body 21 is electrically connected to each of the hard cylindrical bodies 11 on both sides so as to be conductive, and is provided with a second electromagnetic shielding portion 24 that surrounds the outside of the inserted electric wire 2 and exhibits electromagnetic shielding properties.
[0096] According to the above-mentioned configuration, while having an electromagnetic shielding function, it does not become bulky during transportation and can be easily deployed and installed at the destination.
[0097] More specifically, in general, when a high-voltage harness connects, for example, a battery and a motor, the intermediate portion of the high-voltage harness in the longitudinal direction X is arranged to run vertically in the front-rear direction under the vehicle floor, and therefore the high-voltage harness is formed in a long shape. Furthermore, the high-voltage harness described above is formed as a long object that is bent and deformed in various directions (i.e., bent and deformed into a two-dimensional or three-dimensional shape) in order to be arranged between, for example, the battery or the motor and a lower position under the vehicle floor while detouring surrounding in-vehicle devices.
[0098] The wire harness 1 is provided with an exterior member that covers the electric wires 2 from the outside over almost the entire length. In particular, in a high-voltage harness, the exterior member may be a hard pipe made entirely of a hard material, such as a metal pipe, which has an electromagnetic shielding function in itself and enhances the path regulation function of the electric wires 2 and the protection function of the electric wires 2 against external forces such as flying stones.
[0099] In this way, wire harnesses 1, including high-voltage harnesses, which are equipped with an exterior member having an electromagnetic shielding function, are formed as long three-dimensional objects, but cannot be bent and deformed compactly because the exterior member is a hard metal pipe, etc., and is bulky when transported, making it difficult to transport or move efficiently.
[0100] In contrast, according to the above configuration, the flexible cylindrical body 21 provided between adjacent rigid cylindrical bodies 11 in the longitudinal direction X of the shield exterior 10 can be bent and deformed, so that the entire product can be folded compactly as shown in FIG. 7. Therefore, the wire harness 1 can be easily transported to a wire harness installation site in a state where it is folded compactly and stored in a harness storage box (not shown) or the like.
[0101] Furthermore, since the flexible cylindrical body 21 (second electromagnetic shielding portion 24) provided between adjacent rigid cylindrical bodies 11 (at a location corresponding to the location of the flexible cylindrical body 21 in the longitudinal direction X) and the conductive main body portion 12 (first electromagnetic shielding portion 14) provided on the rigid cylindrical body 11 are conductively connected, the shield exterior 10 can ensure electromagnetic shielding properties between adjacent rigid cylindrical bodies 11a, 11b and between these rigid cylindrical bodies 11a, 11b.
[0102] Furthermore, when the wire harness 1 is transported, the shield exterior 10 does not need to be disassembled into the plurality of hard cylindrical bodies 11 and the flexible cylindrical bodies 21, and the adjacent hard cylindrical bodies 11 are connected to each other via the flexible cylindrical bodies 21, so that the wire harness 1 can be made compact. Therefore, the wire harness 1 can be easily unfolded from the bent and deformed state and routed at the transport destination without the need to reconnect the plurality of hard cylindrical bodies 11 and the flexible cylindrical bodies 21 to form a layout according to the routing route R.
[0103] Therefore, according to the above-mentioned configuration, while having an electromagnetic shielding function, it does not become bulky during transportation and can be easily deployed and installed at the destination.
[0104] In addition, since the shield exterior 10 can be handled as a single exterior member whether during or after transportation, these components can be easily managed even in a configuration having multiple flexible cylindrical bodies 21 and multiple rigid cylindrical bodies 11.
[0105] Moreover, as shown in FIG. 4, the flexible cylindrical body 21 of this embodiment is fitted onto the exposed conductor ends 12a, 12b (ends) of the rigid cylindrical body 11, and in this state, a cable tie 23 is provided as a fixing body for fixing the flexible cylindrical body 21 to the exposed conductor ends 12a, 12b of the rigid cylindrical body 11.
[0106] According to the above-mentioned configuration, the flexible tubular body 21 can be firmly fixed to the exposed conductor ends 12a, 12b of the rigid tubular body 11 by the cable ties 23. Therefore, the shield exterior 10 can keep the flexible tubular body 21 and the rigid tubular body 11 connected to each other without being unintentionally separated during transportation or installation.
[0107] Furthermore, as shown in Figures 4 and 5(a), since the flexible cylindrical body 21 functions as the second electromagnetic shielding portion 24, it is possible to ensure electromagnetic shielding between adjacent rigid cylindrical bodies 11a, 11b without providing a separate member other than the flexible cylindrical body 21 to constitute the second electromagnetic shielding portion 24 between adjacent rigid cylindrical bodies 11.
[0108] As shown in FIG. 4, the flexible cylindrical body 21 having the second electromagnetic shield portion 24 is composed of a cylindrical braided body in which copper wires 21w, serving as metal wires, are woven together to form a cylindrical shape.
[0109] According to the above-mentioned configuration, it is possible to obtain a flexible cylindrical body 21 that has both excellent electrical conductivity and flexibility.
[0110] As shown in Figs. 1 to 5(a), the shield exterior 10 is provided with a cover body 31 that covers the flexible tubular body 21 from the outside.
[0111] According to the above-mentioned configuration, the flexible tubular body 21 can be protected by the cover body 31, and thus the function of protecting the electric wires 2 inserted inside the flexible tubular body 21 can be improved.
[0112] As shown in the figure, the cover body 31 of this embodiment is a hard cover body.
[0113] According to the above configuration, when the wire harness 1 is arranged along the wiring path R, the cover body 31 can ensure the path control function of the electric wires 2 between adjacent rigid cylindrical bodies 11 and protect the flexible cylindrical body 21 against external forces.
[0114] As shown in FIGS. 1 to 4 and 6, the flexible tubular body 21 is formed to have a length and the like that allows it to be disposed in a straight portion Rs of the wiring path R.
[0115] According to the above-described configuration, when the wire harness 1 is transported, the flexible tubular body 21 arranged in the straight portion Rs is bent and deformed, so that the wire harness 1 (shielding exterior 10) can be made into a compact shape.
[0116] Furthermore, as described above, when the wire harness 1 is routed along the routing path R in the vehicle body, the straight portion Rs can be bent and deformed in the flexible tubular body 21, so that the freedom of handling of the wire harness 1 can be increased. Therefore, the wire harness 1 can be easily routed while avoiding interference with vehicle body parts located around the routing path R.
[0117] In addition, according to the above configuration, it is possible to arbitrarily set the length of the hard cylindrical bodies 11 arranged on both sides of the flexible cylindrical body 21 depending on the location and length of the flexible cylindrical body 21 arranged in the straight portion Rs of the wiring path R of the wire harness 1.
[0118] For this reason, the length of the rigid cylindrical body 11 in the longitudinal direction X does not need to be the same as, for example, the length of the straight portion Rs in the wiring path R of the wire harness 1, and it is possible to standardize the component size by aligning the lengths among multiple rigid cylindrical bodies 11. Therefore, the management of the components of the shield exterior 10 becomes easier and the manufacturing costs can be reduced.
[0119] As shown in FIG. 1, a flexible cylindrical body 21e is also provided at the ends 10a and 10b of the shield exterior 10. As shown in FIG.
[0120] According to the above configuration, when the ends 2a, 2b of the electric wire 2 are connected to an electric device such as a motor in a vehicle body or to respective electric wire connection points (not shown) in a battery, the electric wire 2 can be protected by being covered with the flexible cylindrical body 21e up to a portion in the longitudinal direction that is as close as possible to the electric wire connection point.
[0121] Furthermore, even if the shield exterior 10 vibrates due to vehicle body vibration or the like, the vibration can be absorbed by the flexible cylindrical body 21e so as to prevent the vibration from being transmitted from the shield exterior 10 to the electric wire connection point, thereby preventing the influence of the vibration of the shield exterior 10 from reaching the electric wire connection point.
[0122] The present invention is not limited to the configurations of the above-described embodiments, but can be formed in various embodiments. Shield exteriors 10A, 10B, 10C, and 10D according to modified examples of the present invention will be described below, but the same structures as those of the shield exterior 10 of the above-described embodiment will be given the same reference numerals and descriptions thereof will be omitted.
[0123] For example, as in the shield exterior 10A of Modification 1 shown in Fig. 8, the flexible tubular body 21A provided with the second electromagnetic shield portion 24 is configured of a shield corrugated tube having electromagnetic shielding properties and flexibility, rather than a cylindrical braid. The flexible tubular body 21A of Modification 1 is formed of a conductive resin material made of resin containing conductive powder. As a result, the flexible tubular body 21A of Modification 1 is conductive over its entire length and circumference, similar to the flexible tubular body 21 described above.
[0124] According to the above-mentioned configuration, it is possible to obtain a flexible cylindrical body 21 that is durable in addition to being conductive and flexible. In addition, the shielded corrugated tube as the flexible cylindrical body 21A having electromagnetic shielding properties is not limited to the configuration of variant example 1, and may be configured, for example, such that a thin-walled conductive member such as metal foil is provided on the inner surface of a resin corrugated tube.
[0125] Also, like a shield exterior 10B of a second modified example shown in FIG. 9, a configuration may be used in which a second electromagnetic shield portion 24 is provided on a cover body 31B that covers a flexible tubular body 21B from the outside.
[0126] Specifically, the flexible cylindrical body 21B of the second modification is a corrugated tube made of a resin material, and is configured to have insulating properties (that is, no electrical conductivity) over the entire length and circumference.
[0127] On the other hand, the cover body 31B of the second modification has a metal foil 37 adhered to the entire inner circumferential surface of a hard cover formed hard with a predetermined thickness from a resin material, as the second electromagnetic shield portion 24. When the cover body 31B of the second modification is attached to the outside of the flexible cylindrical body 21B, both ends in the longitudinal direction X of the metal foil 37 provided on the cover body 31B face the exposed conductor ends 12a, 12b of the adjacent hard cylindrical bodies 11a, 11b from the outside in the radial direction over the entire circumference.
[0128] Electrical contact is made between the opposing ends (12a, 12b) of adjacent rigid cylindrical bodies 11a, 11b and both ends 31Ba, 31Bb in the longitudinal direction X of the metal foil provided on the cover body 31B via a conductive ring 38, and the cover body 31B is conductively connected to the corresponding rigid cylindrical body 11 at both ends 31Ba, 31Bb in the longitudinal direction X.
[0129] According to the above-mentioned configuration, the flexible tubular body 21B can be protected by the cover body 31B, and thus the function of protecting the electric wires 2 inserted inside the flexible tubular body 21B can be improved.
[0130] Furthermore, according to the above configuration, even if the second electromagnetic shielding portion 24 is not provided on the flexible cylindrical body 21B, the second electromagnetic shielding portion 24 provided on the cover body 31B can ensure electromagnetic shielding between adjacent rigid cylindrical bodies 11.
[0131] The cover body 31B on which the second electromagnetic shielding portion 24 is provided is not limited to the configuration of variant example 2, and other configurations may be adopted as long as they have electromagnetic shielding properties, such as a configuration formed from a conductive resin material made of resin containing conductive powder.
[0132] Also, like a shield exterior 10C of a third modified example shown in FIG. 10, a cover body 31C may be configured as a flexible cover body having flexibility.
[0133] Specifically, the cover body 31C of the third modification is a corrugated tube made of a resin material, and similar to the flexible cylindrical body 21, is formed to have flexibility over its entire length and circumference.
[0134] In addition, the flexible tubular body 21 in the shield exterior 10C of the third modified example shown in FIG. 10 is formed of a tubular braid, similar to the flexible tubular body 21 in the above-described embodiment.
[0135] According to the above-described configuration, the flexible cylindrical body 21 can be protected by the cover body 31C while maintaining flexibility between adjacent rigid cylindrical bodies 11 on both sides in the longitudinal direction X of the shield exterior 10.
[0136] The flexible cover 31C of the third modification is formed to have insulating properties (that is, not conductive) over its entire length and periphery. In this way, the second electromagnetic shield portion 24 between adjacent rigid cylindrical bodies 11 may be provided on either the cover body or the flexible member, as long as it is provided on at least one of them.
[0137] As in a shield exterior 10D of a fourth modified example shown in FIG. 5(b), a cover body 31D may be configured to cover a part of the flexible tubular body 21 in the circumferential direction Z from the outside.
[0138] Specifically, the orthogonal cross section of the cover body 31D of the fourth modification is formed in an arc shape over the entire length in the longitudinal direction X so as to surround from the outside the lower part of the flexible cylindrical body 21. The cover body 31D of the fourth modification is entirely formed of a resin material to have a predetermined thickness and to be rigid.
[0139] On the other hand, the flexible cylindrical body 21 of the modified example 4 is disposed in the underfloor straight portion Rs. The cover body 31D of the modified example 4 can effectively protect the flexible cylindrical body 21 from flying stones and the like by covering the lower side of the flexible cylindrical body 21, which needs protection in the circumferential direction Z.
[0140] Moreover, the cover body 31D of the fourth modification does not cover the entire circumference of the flexible tubular body 21, but only the lower side in the circumferential direction Z, and thus the provision of the cover body 31D can prevent the weight from increasing.
[0141] Furthermore, the cover body 31D of variant example 4 is formed to be insulating throughout, whereas the flexible tubular body 21 is formed to be conductive throughout, for example, by a tubular braid, etc., so that the second electromagnetic shielding portion 24 is provided on the flexible tubular body 21. Therefore, the flexible cylindrical body 21 can surround the electric wire 2 from the outside while ensuring electromagnetic shielding properties all around.
[0142] Furthermore, the present invention is not limited to the configurations of the above-described embodiment and modifications 1 to 4, and other configurations may be adopted. For example, the cover body of the present invention is not limited to being hard, and may be configured to have flexibility, such as the flexible cover body 31C of the above-mentioned modified example 3. The flexible cover body is not particularly limited in shape, and may be in the form of a tube, sheet, bag, tape, or the like, and may be, for example, a cover body provided with a waterproof function using a resin sheet such as vinyl.
[0143] As described above, the wire harness 1 is arranged with the flexible tubular body 21 bent and deformed according to the bent portion Rt of the wiring path R, so that it is not necessary to provide a plurality of rigid tubular bodies 11 corresponding to various bending shapes of the bent portion Rt, and it is possible to standardize the components. Also, for example, it is not necessary to provide a rigid tubular body having a bending shape specific to a vehicle model.
[0144] However, the wire harness 1 may be configured to include a bent rigid cylindrical body 11 at a portion corresponding to the bent portion Rt of the wiring path R. That is, the wire harness 1 may use not only the straight rigid cylindrical body 11 but also the bent rigid cylindrical body 11 in combination. [Explanation of symbols]
[0145] 10, 10A, 10B, 10C, 10D...Shielded exterior 1...Wire harness 2...Electric wire 11...Hard cylindrical body 12a, 12b...Exposed conductor end (end of hard cylindrical body) 14...First electromagnetic shield section 12b, 21a... the ends of the rigid cylindrical bodies facing each other on both sides 12a, 21b... the ends of the hard cylindrical bodies facing each other 21...Flexible cylindrical body (flexible cylindrical body, cylindrical braided body) 21A... Flexible cylindrical body (flexible cylindrical body having a second electromagnetic shielding portion, a resin-made shielded corrugated tube having electromagnetic shielding properties and flexibility) 21B...Flexible cylindrical body 21w…Copper wire (metal wire) 23…Cable tie (fixed body) 24…Second electromagnetic shield section 31...Cover body (cover body, hard cover body) 31B...Cover body (cover body, cover body provided with second electromagnetic shield part) 31C...Cover body (cover body, flexible cover body) 31D...Cover body (cover body, cover body that covers a part of the circumferential direction of the flexible cylindrical body from the outside) R…Routing route Rs: Straight section of the wiring path that is routed in a straight line 21e...flexible cylindrical body (flexible cylindrical body provided at the end of the shield exterior)
Claims
1. A cylindrical shield exterior having electromagnetic shielding properties; and an electric wire inserted inside the shield exterior. The shield exterior is A plurality of hard cylindrical bodies each having a first electromagnetic shield portion that exhibits the electromagnetic shielding property and being hard; and a flexible cylindrical body that is disposed between the adjacent rigid cylindrical bodies and connects the ends of the rigid cylindrical bodies on both sides that face each other, A second electromagnetic shield portion is provided between adjacent rigid cylindrical bodies, the second electromagnetic shield portion is electrically conductively connected to each of the rigid cylindrical bodies on both sides, surrounds the outside of the inserted electric wire, and provides the electromagnetic shielding property; the second electromagnetic shield portion is provided on the flexible cylindrical body, the flexible tubular body having the second electromagnetic shield portion is composed of a tubular braided body in which metal wires are braided and formed into a tubular shape, a cover body is provided to cover the flexible cylindrical body from the outside; The cover body is a hard cover body and is attached across the ends of the adjacent hard cylindrical bodies, The hard cover body includes a straight cover body formed to correspond to a straight portion of the wiring path, and a curved cover body formed to correspond to a curved portion of the wiring path. Wire harness.
2. The flexible cylindrical body is fitted onto an end of the hard cylindrical body, A fixing body is provided for fixing the flexible cylindrical body to the hard cylindrical body. The wire harness according to claim 1.
3. The cover body is configured to cover a part of the flexible cylindrical body in the circumferential direction from the outside. The wire harness according to claim 1 or 2.
4. The flexible tubular body is formed so as to be able to be arranged in a straight portion of a wiring path. The wire harness according to any one of claims 1 to 3.
5. The flexible cylindrical body is also provided at an end of the shield exterior. The wire harness according to any one of claims 1 to 4.
6. A shielding exterior that constitutes the wire harness according to any one of claims 1 to 5, the shielding exterior being in a tubular shape having electromagnetic shielding properties and having electric wires inserted therein, A plurality of the rigid cylindrical bodies each having the first electromagnetic shield portion; and a flexible cylindrical body having flexibility that connects the rigid cylindrical bodies to each other, The second electromagnetic shielding portion is provided between the rigid cylindrical bodies arranged on both sides of the flexible cylindrical body, and is electrically conductively connected to each of the rigid cylindrical bodies on both sides and surrounds the outside of the electric wire to be inserted. Shield exterior.
Citation Information
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