Wire harness

Abstract

To provide a wire harness capable of appropriately suppressing the ingress of water to a crimped and fixed portion by a shield ring.SOLUTION: A wire harness WH includes a shield electric wire 10, a shield terminal 20, a shield ring 30 and a shrink tube 50. The shield terminal 20 is provided with a through hole 22 penetrating through along a height direction Z (radial direction). The shrink tube 50 includes: a first seal portion 51 that is adhesively fixed, via an adhesive 61 filled into the through hole 22, to an outer peripheral surface of a first portion 10a, the first portion being positioned closer to one end portion side of the shield electric wire 10 in an axial direction X than the shield ring 30, and that performs sealing with respect to the outer peripheral surface of the first portion 10a; and a second seal portion 52 that performs sealing with respect to an outer peripheral surface of a second portion 10b, the second portion being positioned closer to the other end portion side of the shield electric wire 10 in the axial direction X than the shield ring 30.SELECTED DRAWING: Figure 4

Description

[Technical Field]

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

[0002] As an example of a technique related to conventional wire harnesses, Patent Document 1 discloses a wire harness including a shielded electric wire having a braided body, a shielded terminal covering the outer circumferential surface of the shielded electric wire and being grounded to a grounding object, a shield ring that is crimped and fixed to a folded portion of the braided body that is folded back along the outer circumferential surface of the shielded terminal, and a shrinkable tube that integrally covers the outer circumferential surface of a portion of the shielded electric wire that is positioned offset from the shield ring in the axial direction, the outer circumferential surface of the shield ring, and the outer circumferential surface of the shielded terminal and seals between the outer circumferential surface of the shielded electric wire. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-106844 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the wire harness described in the above-mentioned Patent Document 1 has room for further improvement in terms of, for example, properly suppressing water intrusion into the crimped and fixed portion by the shield ring.

[0005] The present invention has been made in view of the above circumstances, and has an object to provide a wire harness that can appropriately prevent water from entering the crimped and fixed portion by a shield ring. [Means for solving the problem]

[0006] In order to achieve the above object, a wire harness according to the present invention includes: a shielded electric wire having a braid; a shield terminal covering an outer circumferential surface of the shielded electric wire and being grounded to a grounding target; a shield ring crimped and fixed so as to sandwich a folded portion of the braid folded back along the outer circumferential surface of the shield terminal between the shield ring and the shield terminal; and a shrinkable tube integrally covering the outer circumferential surface of the shielded electric wire, the outer circumferential surfaces of the shield terminal, and the outer circumferential surfaces of the shield ring, wherein the shield terminal has a through hole penetrating along a radial direction of the shielded electric wire, and the shrinkable tube includes: a first seal portion bonded and fixed to an outer circumferential surface of a first portion of the shielded electric wire located closer to one end of the shielded electric wire than the shield ring via an adhesive filled in the through hole, the first seal portion sealing between the outer circumferential surface of the first portion, and a second seal portion sealing between the outer circumferential surface of a second portion of the shielded electric wire located closer to the other end of the shield ring in the axial direction. [Effects of the Invention]

[0007] In the wire harness according to the present invention, for example, the first seal containing the adhesive of the shrinkable tube can suppress water penetration toward the shield ring from the outer circumferential surface of the first portion of the shielded wire located closer to one end in the axial direction than the shield ring, and the second seal can suppress water penetration toward the shield ring from the outer circumferential surface of the second portion of the shielded wire located closer to the other end in the axial direction than the shield ring. As a result, the wire harness exhibits the effect of being able to appropriately suppress water penetration into the crimped-fixed portion formed by the shield ring. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is an exemplary perspective view of a wire harness according to an embodiment. [Figure 2] FIG. 2 is an exemplary exploded perspective view of the wire harness according to the embodiment. [Figure 3]FIG. 3 is an exemplary perspective view of a shielded electric wire and an inner shell of the wire harness according to the embodiment. [Figure 4] FIG. 4 is an exemplary cross-sectional view (cross-sectional view intersecting the width direction) of the shielded electric wire and the inner shell of the wire harness according to the embodiment. [Figure 5] FIG. 5 is an exemplary cross-sectional view (cross-sectional view intersecting the axial direction) of the shielded electric wire and the inner shell of the wire harness according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the following embodiments. Furthermore, the components in the following embodiments include those that are easily replaceable by those skilled in the art, or those that are substantially identical. Note that in this specification, ordinal numbers are used only to distinguish between parts, members, portions, positions, directions, etc., and do not indicate order or priority.

[0010] [Embodiment] FIG. 1 is a perspective view of a wire harness WH according to an embodiment. The wire harness WH of this embodiment shown in FIG. 1 is installed in a vehicle such as an automobile. Here, the wire harness WH is, for example, a collective component in which a plurality of shielded electric wires 10 serving as electric wires used for power supply and signal communication are bundled together to connect various devices mounted on the vehicle, and the shielded electric wires 10 are connected to the devices using connectors or the like. The wire harness WH of this embodiment includes, for example, a plurality of conductive shielded electric wires 10 and a shield shell 1 provided at the ends of the plurality of shielded electric wires 10 and grounded to the shielded electric wires 10. In this embodiment, the shield shell 1 is an example of a grounded object. The wire harness WH may further include a protector, a grommet, or the like.

[0011] In the following description, of the first, second, and third directions that intersect with one another, the first direction will be referred to as the "axial direction X," the second direction will be referred to as the "width direction Y," and the third direction will be referred to as the "height direction Z." Here, the axial direction X, the width direction Y, and the height direction Z are approximately perpendicular to one another. The axial direction X typically corresponds to the extending direction (axial direction) of the shielded electric wire 10, the insertion direction of the shielded electric wire 10 into the shielded shell 1, the longitudinal direction of the shielded shell 1, etc. The width direction Y typically corresponds to the radial direction of the shielded electric wire 10, the width direction (left-right direction) of the shielded shell 1, etc. The height direction Z typically corresponds to the radial direction of the shielded electric wire 10, the height direction (up-down direction) of the shielded shell 1, the stacking direction of the laminates 2 and 3 described below, etc. Furthermore, unless otherwise specified, the directions used in the following description will be described as directions in a state in which the shielded electric wire 10 is assembled to the shielded shell 1.

[0012] FIG. 2 is an exploded perspective view of the wire harness WH. As shown in FIG. 2, the wire harness WH includes, for example, a plurality of laminates 2 and 3 stacked along the height direction Z, and a plurality of fastening members 4, such as bolts, that fasten the plurality of laminates 2 and 3 together. In this embodiment, the laminates 2 and 3 are formed of unit components (modules) that are substantially identical to each other. That is, the specifications of the laminate 2 are substantially the same as the specifications of the laminate 3. Here, the laminate 2 is provided with boss-hole-shaped mounting portions 1b into which the fastening members 4 are fastened, while the laminate 3 is provided with mounting hole-shaped mounting portions 1b into which the fastening members 4 are inserted, and the other configurations are substantially the same. The mounting portions 1b are provided, for example, at the four corners of the laminates 2 and 3.

[0013] The laminates 2 and 3 are each configured to include, for example, a plurality of shielded electric wires 10 and a shield shell 1 that houses the plurality of shielded electric wires 10. The shield shell 1 grounds the plurality of shielded electric wires 10 and prevents noise and the like from leaking outside the shield shell 1 by covering the periphery of the shielded electric wires 10. The shield shell 1 is configured, for example, by combining a plurality of parts. Here, as an example, the shield shell 1 is configured to include an upper shell 1A, a lower shell 1B, and an inner shell 1C (see FIG. 3). The upper shell 1A, the lower shell 1B, and the inner shell 1C are each formed, for example, from a conductive metal material.

[0014] The lower shell 1B is a portion of the shield shell 1 that covers the multiple shielded electric wires 10 from the other end side (lower side) in the height direction Z. The lower shell 1B is provided with a concave accommodating space portion that is open toward one end side (upper side) in the height direction Z and that accommodates the multiple shielded electric wires 10. In the accommodating space portion, the multiple shielded electric wires 10 are arranged side by side at intervals from each other in the width direction Y. The lower shell 1B also has multiple fastening holes to which fastening members 5 such as bolts are fastened along the height direction Z. The multiple fastening holes are provided, for example, at four corners of the lower shell 1B in proximity to the mounting portion 1b, and are fastened (integrated) with the upper shell 1A via the fastening members 5 fastened to the fastening holes.

[0015] The upper shell 1A is a portion of the shield shell 1 that covers the multiple shielded electric wires 10 from one end side (upper side) in the height direction Z. With the multiple shielded electric wires 10 accommodated in the accommodation space of the lower shell 1B, the upper shell 1A covers the accommodation space from one end side (upper side) in the height direction Z. The upper shell 1A, together with the lower shell 1B, constitutes the main body 1a of the shield shell 1. The upper shell 1A is provided with multiple insertion holes through which the above-mentioned fastening members 5 are inserted along the height direction Z. The multiple insertion holes are provided, for example, at positions corresponding to the multiple fastening holes of the lower shell 1B. The fastening members 5 are inserted into the respective insertion holes and fastened to the fastening holes, thereby fastening (integrating) the upper shell 1A and the lower shell 1B together.

[0016] Fig. 3 is a perspective view of the shielded electric wire 10 and the inner shell 1C of the wire harness WH, and Fig. 4 is a cross-sectional view (cross-sectional view intersecting with the width direction Y) of the shielded electric wire 10 and the inner shell 1C of the wire harness WH. As shown in Figs. 3 and 4, the inner shell 1C is accommodated together with the shielded electric wire 10 in the accommodation space (internal space) of the upper shell 1A and the lower shell 1B of the shield shell 1. In this embodiment, the wire harness WH is provided with a plurality of inner shells 1C corresponding to the plurality of shielded electric wires 10, respectively. Each inner shell 1C is configured to include, for example, a pair of division bodies 1Ca, 1Cb that can be separated from each other along the height direction Z.

[0017] The divided body 1Cb is a portion of the inner shell 1C that covers the shielded wire 10 from the other end side (lower side) in the height direction Z. The divided body 1Cb is provided with a concave accommodating space 1g that is open toward one end side (upper side) in the height direction Z and through which the shielded wire 10 is inserted along the axial direction X. The divided body 1Ca is a portion of the inner shell 1C that covers the shielded wire 10 from the one end side (upper side) in the height direction Z. The divided body 1Ca is provided with a concave accommodating space 1g that is open toward the other end side (lower side) in the height direction Z and through which the shielded wire 10 is inserted along the axial direction X. In this embodiment, the divided bodies 1Ca and 1Cb are formed from the same parts. That is, the specifications of the divided body 1Ca are substantially the same as those of the divided body 1Cb. The inner shell 1C is formed into a cylindrical shape along the outer peripheral surface of the shielded electric wire 10 in a state where the pair of divided bodies 1Ca and 1Cb are assembled together, for example, and forms the middle wall portion 1f of the shielded shell 1.

[0018] Furthermore, the inner shell 1C has protrusions 1t on the inner peripheral surfaces of the pair of segments 1Ca, 1Cb. The protrusions 1t extend along the circumferential direction of the shielded electric wire 10 on the inner peripheral surfaces of the segments 1Ca, 1Cb and protrude along the radial direction of the shielded electric wire 10 (the height direction Z in FIG. 4 ). The pair of protrusions 1t are grounded to exposed portions 23 of the shielded terminal 20 exposed from one end side of the shrink tube 50 in the axial direction X, which will be described later. In this embodiment, for example, the fastening force applied when fastening the upper shell 1A and the lower shell 1B with the fastening member 5 presses the pair of segments 1Ca, 1Cb of the inner shell 1C toward each other in the height direction Z via the outer walls of the upper shell 1A and the lower shell 1B, thereby maintaining a state in which the protrusions 1t and the exposed portions 23 are in contact with each other.

[0019] In this embodiment, each of the multiple shielded electric wires 10 is exteriorly covered with the above-described inner shell 1C, shrinkable tube 50, shielded terminal 20, and shield ring 30. The shielded terminal 20 is a terminal fitting made of a conductive metal material and is grounded to the shielded shell 1. The shielded terminal 20 is configured to include, for example, a tubular portion 21 that covers the outer circumferential surface of the shielded electric wire 10 and is housed inside the shrinkable tube 50, and an exposed portion 23 that is provided at one end of the tubular portion 21 in the axial direction X and is exposed to the outside of the shrinkable tube 50.

[0020] The tubular portion 21 and the exposed portion 23 are formed, for example, in a cylindrical shape that follows the outer peripheral surface of the shielded electric wire 10. The tubular portion 21 is provided with a plurality of through holes 22 that are filled with an adhesive 61 (see FIG. 5 ) of the shrink tube 50, which will be described later. The plurality of through holes 22 are provided in the tubular portion 21 at intervals from one another along the circumferential direction of the shielded electric wire 10, and penetrate the shielded electric wire 10 in the radial direction (the width direction Y and the height direction Z in FIG. 5 ). For convenience, the adhesive 61 is not shown in FIG. 4. The exposed portion 23 is exposed from one end side of the shrink tube 50 in the axial direction X, and is grounded to the inner shell 1C of the shield shell 1 via the above-mentioned protrusion 1t.

[0021] The shielded wire 10 includes, for example, a conductive linear conductor 11, an insulating coating 12 that has insulating properties and covers the outside of the conductor 11, and a braid 13 that is disposed between an inner layer 12a and an outer layer 12b of the insulating coating 12. Note that the conductor 11 in this embodiment is a core wire formed by bundling a plurality of conductive metal wires, but it may also be a twisted core wire formed by twisting the plurality of metal wires together. The insulating coating 12 is a wire coating that covers the outer periphery of the conductor 11.

[0022] The shielded electric wire 10 extends linearly along the axial direction X and is formed to extend with approximately the same diameter in the axial direction X (extension direction). In addition, the shielded electric wire 10 is formed such that, for example, the cross-sectional shape (cross-sectional shape intersecting with the axial direction X) of the conductor portion 11 is approximately circular, and the cross-sectional shapes of the insulating coating portion 12 and the braided body 13 are approximately annular, so that the shielded electric wire 10 has an approximately circular cross-sectional shape as a whole. In this embodiment, for example, the inner layer 12a of the insulating coating portion 12 and the conductor portion 11 form a wire main body of the shielded electric wire 10, and the outer layer 12b of the insulating coating portion 12 and the braided body 13 form a shield portion of the shielded electric wire 10.

[0023] The shielded wire 10 includes, for example, a first portion 10a and a second portion 10b. The first portion 10a is a portion of the shielded wire 10 that is located closer to one end in the axial direction X than the shield ring 30. In this embodiment, the first portion 10a includes the conductor portion 11 and the inner layer 12a of the insulating coating portion 12 that constitute the above-described wire main body, and the braided body 13 and the outer layer 12b of the insulating coating portion 12 that constitute the shield portion, and is formed to have a relatively larger diameter than the second portion 10b.

[0024] The second portion 10b is a portion of the shielded wire 10 that is located closer to the other end in the axial direction X than the shield ring 30. In this embodiment, the second portion 10b is configured to include only the conductor portion 11 and the inner layer 12a of the insulating coating portion 12 that constitute the above-mentioned wire main body, and is formed to have a smaller diameter than the first portion 10a. That is, the shielded wire 10 includes a portion in the axial direction X where the braided body 13 and the outer layer 12b of the insulating coating portion 12 that constitute the above-mentioned shield portion have been stripped off, and this portion constitutes the second portion 10b.

[0025] The braid 13 is a shielding layer formed by weaving a conductive metal material into a mesh. The braid 13 includes, for example, a main body 13a that covers the outer peripheral surface of the inner layer 12a of the insulating coating 12 that constitutes the above-described electric wire main body, and a folded-back portion 13b that is provided at the other end of the main body 13a in the axial direction X and folded back along the outer peripheral surface of the shield terminal 20. The main body 13a is formed, for example, in a cylindrical shape extending along the axial direction X, and is interposed between the inner layer 12a and the outer layer 12b of the insulating coating 12. In this embodiment, the main body 13a covers the conductor 11 and the inner layer 12a of the insulating coating 12 of the shielded electric wire 10 over substantially the entire length of the shielded electric wire 10, thereby configuring the electric wire as the shielded electric wire 10.

[0026] The folded portion 13b is formed, for example, in a cylindrical shape extending along the axial direction X, and is interposed between the shield terminal 20 and the shield ring 30. The folded portion 13b is formed by folding back the other end of the main body portion 13a in the axial direction X so that it overlaps with the outer peripheral surface of the shield terminal 20. In this embodiment, the length of the folded portion 13b in the axial direction X is approximately the same as the length of the shield ring 30 in the axial direction X. The main body portion 13a is also referred to as an inner shield portion, etc., and the folded portion 13b is also referred to as an outer shield portion, etc.

[0027] The shield ring 30 functions as a crimping ring that is crimped to the braid 13. The shield ring 30 is formed, for example, in a cylindrical shape that follows the outer peripheral surface of the shield terminal 20, and is crimped and fixed so that the folded-back portion 13b of the braid 13 is sandwiched between the shield ring 30 and the shield terminal 20. In this embodiment, for example, by crimping and fixing the shield ring 30, the folded-back portion 13b of the braid 13, and the shield terminal 20 together, a step portion (recess) is formed in the shield terminal 20 along the radial direction (height direction Z in FIG. 4 ). In addition, by crimping and fixing the shield ring 30, the folded-back portion 13b of the braid 13, and the shield terminal 20 together, the shield ring 30, the braid 13, and the shield terminal 20 are electrically connected to each other. The shield ring 30 is also referred to as a sleeve, etc.

[0028] The shrink tube 50 is, for example, a heat-shrinkable tube that shrinks in the radial direction of the shrink tube 50 (the height direction Z in FIG. 4 ) when heated, and prevents foreign matter such as moisture from entering the crimped and fixed portion formed by the shield ring 30. The shrink tube 50 is, for example, formed in a cylindrical shape that follows the outer circumferential surface of the shielded electric wire 10, and is tightly fixed to the outer circumferential surface of the shielded electric wire 10 by heat shrinkage. In this embodiment, the shrink tube 50 integrally covers the outer circumferential surface of the second portion 10b of the shielded electric wire 10, the outer circumferential surface of the shield ring 30, and the outer circumferential surface of the shielded terminal 20.

[0029] In this embodiment, the shrink tube 50 includes a first seal portion 51 and a second seal portion 52. The second seal portion 52 is a portion of the shrink tube 50 that covers the outer peripheral surface of the second portion 10b of the shielded electric wire 10 and seals the gap between the shrink tube 50 and the outer peripheral surface of the second portion 10b. The second seal portion 52 is formed in a cylindrical shape along the outer peripheral surface of the second portion 10b and is tightly fixed to the outer peripheral surface of the second portion 10b by thermal shrinkage. The second seal portion 52 seals water from entering the gap between the shrink tube 50 and the outer peripheral surface of the second portion 10b, which is located closer to the other end of the shielded electric wire 10 in the axial direction X than the shield ring 30, and prevents water from penetrating from the outer peripheral surface of the second portion 10b toward the shield ring 30. In this embodiment, the second seal portion 52 is formed to have a smaller diameter than the first seal portion 51.

[0030] FIG. 5 is a cross-sectional view (cross-sectional view intersecting with the axial direction X) of the shielded electric wire 10 and the inner shell 1C of the wire harness WH. As shown in FIG. 5 , the first seal portion 51 is bonded and fixed to the outer peripheral surface of the first portion 10a of the shielded electric wire 10 via the shrinkable tube 50 with an adhesive 61 filled in the through hole 22 of the shielded terminal 20, thereby sealing the gap between the first seal portion 51 and the outer peripheral surface of the first portion 10a. The first seal portion 51 is formed in a cylindrical shape along the outer peripheral surface of the shielded terminal 20 and is closely fixed to the outer peripheral surface of the shielded terminal 20 by thermal shrinkage. The first seal portion 51 seals water via the adhesive 61 between the first seal portion 51 and the outer peripheral surface of the first portion 10a of the shielded electric wire 10, which is located closer to one end of the shield ring 30 in the axial direction X, thereby preventing water from penetrating from the outer peripheral surface of the first portion 10a toward the shield ring 30. In this embodiment, the first seal portion 51 is formed to have a larger diameter than the second seal portion 52.

[0031] The adhesive 61 includes, for example, a first adhesive portion 61b, a second adhesive portion 61c, and a third adhesive portion 61a. The first adhesive portion 61b is a portion of the adhesive 61 that is interposed between the outer circumferential surface of the first portion 10a and the inner circumferential surface of the shield terminal 20. The first adhesive portion 61b is formed in a cylindrical shape that conforms to the outer circumferential surface of the first portion 10a and the inner circumferential surface of the shield terminal 20, and seals the gap between the outer circumferential surface of the first portion 10a and the inner circumferential surface of the shield terminal 20 to prevent water leakage. The second adhesive portion 61c is a portion of the adhesive 61 that is interposed between the inner circumferential surface of the first seal portion 51 and the outer circumferential surface of the shield terminal 20. The second adhesive portion 61c is formed in a cylindrical shape that conforms to the inner circumferential surface of the first seal portion 51 and the outer circumferential surface of the shield terminal 20, and seals the gap between the inner circumferential surface of the first seal portion 51 and the outer circumferential surface of the shield terminal 20 to prevent water leakage. The second adhesive portion 61c is configured, for example, by an adhesive layer 60 or the like that is provided in advance on the inner circumferential surface of the shrinkable tube 50, which will be described later. The third adhesive portion 61a is a portion of the adhesive 61 that is connected to the first adhesive portion 61b and the second adhesive portion 61c and is interposed in the through hole 22. The third adhesive portion 61a is formed in a cylindrical shape that follows the inner circumferential surface of the through hole 22, and seals the gap inside the through hole 22 to stop water leaking in.

[0032] The shrink tube 50 includes, for example, a cylindrical base layer and an adhesive layer 60 provided on the inner circumferential surface of the base layer. The base layer is formed of, for example, a resin material that shrinks when heated, such as polyolefin or a fluoropolymer. The adhesive layer 60 is formed of, for example, a hot-melt adhesive, more specifically, a polyolefin such as polyethylene, a thermoplastic polyester, an ethylene-vinyl acetate copolymer, or a polyamide. In this embodiment, the adhesive layer 60 is provided over substantially the entire inner circumferential surface of the shrink tube 50. That is, the adhesive layer 60 is provided on each of the inner circumferential surfaces of the first seal portion 51 and the second seal portion 52.

[0033] In the present embodiment, before being thermally shrunk by heating, the shrink tube 50 is formed into a cylindrical shape with a diameter larger than the outer circumferential surface of the shielded electric wire 10 and the outer circumferential surface of the shielded terminal 20. The first seal portion 51 and the second seal portion 52 can be formed by heat-shrinking the shrink tube 50 so that the shrink tube 50 is in close contact with the outer circumferential surface of the second portion 10b of the shielded electric wire 10, the outer circumferential surface of the shield ring 30, and the outer circumferential surface of the shielded terminal 20. At this time, a portion of the adhesive layer 60 provided on the inner circumferential surface of the shrink tube 50 flows out to the inside of the shielded terminal 20 through the through-hole 22, thereby forming the first adhesive portion 61b, the second adhesive portion 61c, and the third adhesive portion 61a of the adhesive 61. In this way, in the present embodiment, by using the shrink tube 50 coated with the adhesive 61, it is possible to relatively easily prevent water from entering the crimp-fixed portion side of the shield ring 30.

[0034] Here, if a pair of packings were used instead of the shrink tube 50 on both sides in the axial direction X of the crimped and fixed portion by the shield ring 30, packings with various specifications depending on the wire diameter of the shielded electric wire 10 would be required, which could increase the effort and cost required to manufacture the wire harness WH. In this regard, according to the present embodiment, the use of the shrink tube 50 having the first seal portion 51 and the second seal portion 52 makes it possible to eliminate the need for packings. This has the advantages of reducing the effort and cost required to manufacture the wire harness WH and enabling the wire harness WH to be made smaller in the radial direction of the shielded electric wire 10.

[0035] As described above, in the wire harness WH of the present embodiment, the shrinkable tube 50 includes the first seal portion 51 that is bonded and fixed to the outer peripheral surface of the first portion 10a of the shielded electric wire 10, the first portion 10a being located closer to one end in the axial direction X than the shield ring 30, via the adhesive 61 filled in the through hole 22, to seal between the shrinkable tube 50 and the outer peripheral surface of the first portion 10a, and the second seal portion 52 that seals between the shrinkable tube 50 and the outer peripheral surface of the second portion 10b of the shielded electric wire 10 being located closer to the other end in the axial direction X than the shield ring 30. With this configuration, the wire harness WH can, for example, be prevented by the first seal portion 51 containing the adhesive 61 from infiltrating water from the outer peripheral surface of the first portion 10a of the shielded electric wire 10, the first portion 10a being located closer to one end in the axial direction X than the shield ring 30, to the shield ring 30 side, and can be prevented by the second seal portion 52 from infiltrating water from the outer peripheral surface of the second portion 10b of the shielded electric wire 10, the second portion 10b being located closer to the other end in the axial direction X than the shield ring 30, to the shield ring 30 side. As a result, the wire harness WH can appropriately prevent water from entering the crimped and fixed portion by the shield ring 30.

[0036] Furthermore, in the wire harness WH of the present embodiment, the adhesive 61 includes a cylindrical first adhesive portion 61b interposed between the outer peripheral surface of the first portion 10a and the inner peripheral surface of the shield terminal 20, a cylindrical second adhesive portion 61c interposed between the inner peripheral surface of the first seal portion 51 and the outer peripheral surface of the shield terminal 20, and a third adhesive portion 61a connected to the first adhesive portion 61b and the second adhesive portion 61c and interposed in the through hole 22. With this configuration, the wire harness WH can more reliably prevent water from entering through a gap between the outer peripheral surface of the first portion 10a and the inner peripheral surface of the first seal portion 51 toward the shield ring 30 by, for example, the first adhesive portion 61b, the second adhesive portion 61c, and the third adhesive portion 61a of the adhesive 61.

[0037] Furthermore, in the wire harness WH of this embodiment, the shield terminal 20 has an exposed portion 23 exposed from one end side of the shrinkable tube 50 in the axial direction X, and the shield shell 1 (grounding target) is configured to include a protruding portion 1t that protrudes along the height direction Z (radial direction) and is grounded to the exposed portion 23. With this configuration, the wire harness WH can relatively easily ground the shield terminal 20 to the shield shell 1 by, for example, abutting the protruding portion 1t with the exposed portion 23, and can more reliably ground the shield terminal 20 and the shield shell 1.

[0038] In this embodiment, the wire harness WH is exemplified as including two laminates 2, 3 stacked along the height direction Z, but the number of laminates 2, 3 is not limited to this example, and for example, the wire harness WH may be configured to include one, three or more laminates 2, 3.

[0039] While the embodiments of the present invention have been described above, they are merely examples and are not intended to limit the scope of the invention. The above embodiments can be implemented in various other forms, and various omissions, substitutions, combinations, and modifications can be made without departing from the spirit of the invention. Furthermore, the specifications of each configuration, shape, and the like (structure, type, direction, format, size, length, width, thickness, height, number, arrangement, position, material, etc.) can be modified as appropriate. [Explanation of symbols]

[0040] 1 Shield shell (grounded object) 1t protrusion 10 Shielded wire 10a Part 1 10b Part 2 13 Braid body 13b Folded part 20 Shield terminal 22 Through hole 23 Exposed part 30 Shield Ring 50 shrink tubing 51 First seal part 52 Second seal part 61 Adhesive 61a 3rd adhesive part 61b 1st adhesive part 61c 2nd adhesive part WH Wire Harness X-axis direction Y Width direction (radial direction) Z Height direction (radial direction)

Claims

1. a shielded wire having a braid; a shield terminal that covers an outer circumferential surface of the shielded electric wire and is grounded to a grounding target; a shield ring that is crimped and fixed between the shield terminal and the folded portion of the braid that is folded back along the outer peripheral surface of the shield terminal so as to sandwich the folded portion between the shield ring and the shield terminal; a shrinkable tube that integrally covers an outer circumferential surface of the shielded wire, an outer circumferential surface of the shield terminal, and an outer circumferential surface of the shield ring, The shield terminal is provided with a through hole that penetrates the shield wire along a radial direction thereof, the shrinkable tube includes: a first seal portion that is adhesively fixed to an outer peripheral surface of a first portion of the shielded electric wire, the first portion being located closer to one end of the shielded electric wire in the axial direction than the shield ring, via an adhesive filled in the through hole, and that seals between the first seal portion and the outer peripheral surface of the first portion; and a second seal portion that seals between the first seal portion and the outer peripheral surface of a second portion of the shielded electric wire, the second portion being located closer to the other end of the shielded electric wire in the axial direction than the shield ring. Wire harness.

2. The adhesive includes a cylindrical first adhesive portion interposed between an outer peripheral surface of the first portion and an inner peripheral surface of the shield terminal, a cylindrical second adhesive portion interposed between an inner peripheral surface of the first seal portion and an outer peripheral surface of the shield terminal, and a third adhesive portion connected to the first adhesive portion and the second adhesive portion and interposed in the through hole. The wire harness according to claim 1 .

3. the shield terminal has an exposed portion exposed from one end side of the shrink tube in the axial direction, The grounding target includes a protruding portion that protrudes along the radial direction and is grounded to the exposed portion. The wire harness according to claim 1 or 2.

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