WO2021192839A1 - Wire harness - Google Patents

Abstract

Disclosed is a wire harness having a novel structure, which can reduce an immersion from a peeling portion of a shield wire while being provided with a covered wire connected to an electromagnetic shield member of the shield wire.　A wire harness 10 is provided with a shield wire 12 including a first covered wire 13, an electromagnetic shield member 24, and a sheath 26, a second covered wire 14, a relay terminal 15, an exterior member 16, and a waterproof member 20 having self-welding properties and covering an opening portion 18 of the exterior member 16, wherein: the first covered wire 13 has a first exposure portion 34; the electromagnetic shield member 24 has a second exposure portion 32; the relay terminal 15 electrically connects the second exposure portion 32 and a second core wire 38 with each other; the second exposure portion 32 and the relay terminal 15 are housed in the exterior member 16; the waterproof member 20 has a first region 44 tightly covering the first exposure portion 34 and a second region 46 tightly covering the second covered wire 14; and the first exposure portion 34 and the second covered wire 14 pass through the first region 44 and second region 46 of the waterproof member 20, respectively.

Description

Wire harness

This disclosure relates to wire harnesses.

Conventionally, a wire harness in which the outside of the electric wire is covered with an exterior member such as a corrugated tube has been known. In particular, in a wire harness to which a large current is supplied, a wire harness using a shielded electric wire as a countermeasure against electromagnetic noise is known. ing. The shielded electric wire has a structure in which the circumference of the coated electric wire is covered with an electromagnetic shield member such as a metal braid, and the electromagnetic shield member is covered with a sheath which is an insulating covering member.

In a wire harness using a shielded wire, at one end of the shielded wire, the end of the sheath is peeled off to expose the electromagnetic shield member, and a structure is connected to the core wire exposed on one end of the grounding wire. Have. Then, by grounding the ground terminal provided on the other terminal of the grounding electric wire to the housing of the peripheral device, the vehicle body panel, or the like, the shielded electric wire exhibits a stable electromagnetic shielding effect.

By the way, in a wire harness using such a shielded electric wire, it is necessary to suppress the ingress of water in the exposed portion of the electromagnetic shield member. For example, in Patent Document 1, water blocking is configured by infiltrating a resin-based water blocking agent such as silicone resin into the electromagnetic shield member exposed from the end of the sheath and the connection portion between the electromagnetic shield member and the grounding electric wire. A structure in which a portion is provided has been proposed.

JP-A-2009-220641

However, in the structure of Patent Document 1, the penetration of the resin-based water blocking agent is insufficient, and a gap may be formed between the electromagnetic shield member and the sheath or the covered electric wire, so that sufficient water stopping performance cannot be exhibited. The problem was inherent. In addition, due to bending deformation or vibration applied to the electric wire, the resin-based water blocking agent may peel off from the insulating coating of the sheath or the coated electric wire, and a leak path may be formed between the resin-based waterproofing agent and the sheath or the coated electric wire. There was also an inherent problem that the water stopping performance could not be maintained stably.

Therefore, we will disclose a wire harness with a new structure that can suppress or reduce water ingress from the peeled part of the shielded wire while providing a covered wire connected to the electromagnetically shielded member of the shielded wire.

The wire harness of the present disclosure includes a first coated electric wire, a shielded electric wire including an electromagnetic shield member covering the first coated electric wire, a sheath covering the electromagnetic shield member, a second core electric wire, and the second core electric wire. A second coated electric wire including a second insulating coating for covering the above, a relay terminal for electrically connecting the shielded electric wire and the second coated electric wire, an opening, and the shielded electric wire and the second coated electric wire. The shielded electric wire includes an exterior member that covers the covered electric wire and the relay terminal, and a waterproof member that is self-bonding and is fixed to the exterior member while covering the opening of the exterior member. The first coated electric wire has a first exposed portion exposed from the sheath and the electromagnetic shield member, and the electromagnetic shield member of the shielded electric wire has a second exposed portion exposed from the sheath. The relay terminal electrically connects the second exposed portion and the second core electric wire, and the second exposed portion and the relay terminal are housed in the exterior member, and the waterproof member. Has a first region that covers the outer peripheral surface of the first exposed portion of the first coated electric wire without gaps and a second region that covers the outer peripheral surface of the second coated electric wire without gaps. And the second coated electric wire are wire harnesses that penetrate the first region and the second region of the waterproof member, respectively.

According to the present disclosure, it is possible to provide a wire harness capable of suppressing or reducing water ingress from a peeled portion of a shielded electric wire while providing a covered electric wire connected to an electromagnetically shielded member of the shielded electric wire.

FIG. 1 is a front view showing a main part of the wire harness according to the first embodiment. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 3A is an explanatory diagram illustrating a procedure for manufacturing the wire harness shown in FIG. 1, and is a diagram showing a first step. FIG. 3B is an explanatory diagram illustrating a procedure for manufacturing the wire harness shown in FIG. 1, and is a diagram showing a step following FIG. 3A. FIG. 3C is an explanatory diagram illustrating a procedure for manufacturing the wire harness shown in FIG. 1, and is a diagram showing a step following FIG. 3B. FIG. 3D is an explanatory diagram illustrating a procedure for manufacturing the wire harness shown in FIG. 1, and is a diagram showing a step following FIG. 3C. FIG. 3E is an explanatory diagram illustrating a procedure for manufacturing the wire harness shown in FIG. 1, and is a diagram showing a process following FIG. 3D. FIG. 3F is an explanatory diagram illustrating a procedure for manufacturing the wire harness shown in FIG. 1, and is a diagram showing a process following FIG. 3E. FIG. 4A is an explanatory diagram illustrating a procedure for manufacturing the wire harness shown in FIG. 1, and is a diagram showing a process following FIG. 3F. FIG. 4B is an explanatory diagram illustrating a procedure for manufacturing the wire harness shown in FIG. 1, and is a diagram showing a step following FIG. 4A. FIG. 4C is an explanatory diagram illustrating a procedure for manufacturing the wire harness shown in FIG. 1, and is a diagram showing a step following FIG. 4B. FIG. 4D is an explanatory diagram illustrating a procedure for manufacturing the wire harness shown in FIG. 1, and is a diagram showing a step following FIG. 4C. FIG. 5 is a cross-sectional view of the wire harness according to the second embodiment, and is a view corresponding to FIG. FIG. 6 is a cross-sectional view of the wire harness according to the third embodiment, which corresponds to FIG.

<Explanation of Embodiments of the present disclosure>
First, embodiments of the present disclosure will be listed and described.
The wire harness of the present disclosure is
(1) A shielded electric wire including a first coated electric wire, an electromagnetic shield member covering the first coated electric wire, and a sheath covering the electromagnetic shield member, a second core electric wire, and a second core electric wire covering the second core electric wire. It has a second coated electric wire including the two insulating coatings, a relay terminal for electrically connecting the shielded electric wire and the second coated electric wire, and an opening, and also has the shielded electric wire, the second coated electric wire, and the said. The first of the shielded electric wires, comprising an exterior member that covers the relay terminal and a waterproof member that is self-bonding and is fixed to the exterior member while covering the opening of the exterior member. The coated electric wire has a first exposed portion exposed from the sheath and the electromagnetic shield member, the electromagnetic shield member of the shielded electric wire has a second exposed portion exposed from the sheath, and the relay terminal has a relay terminal. The second exposed portion and the second core electric wire are electrically connected, the second exposed portion and the relay terminal are housed in the exterior member, and the waterproof member is the first. It has a first region that covers the outer peripheral surface of the first exposed portion of the first coated electric wire without gaps and a second region that covers the outer peripheral surface of the second coated electric wire without gaps, and has the first exposed portion and the second exposed portion. The covered electric wire is a wire harness that penetrates the first region and the second region of the waterproof member, respectively.

According to the wire harness of the present disclosure, in the shielded electric wire, a second coated electric wire such as a grounding electric wire is electrically connected to the second exposed portion of the electromagnetic shield member exposed from the sheath via a relay terminal. have. Further, it has a waterproof member having self-bonding property, and the opening of the exterior member is covered with the waterproof member. Inside the exterior member, an electromagnetic shield member exposed from the sheath and an electromagnetic shield member A relay terminal that electrically connects to the second coated electric wire is housed. As a result, the electromagnetic shield member exposed from the sheath is connected to the second coated electric wire within the waterproof region inside the exterior member whose opening is covered with the waterproof member, and the second coated electric wire is penetrated through the waterproof member. It can be projected to the outside and grounded. As a result, the existing exterior member can be used to improve the insulation and waterproofness of the electromagnetic shield member exposed from the sheath and the relay terminal which is the connecting portion between the electromagnetic shield member and the second coated electric wire.

Moreover, the first region and the second region of the self-bonding waterproof member cover the outer peripheral surfaces of the first coated electric wire and the second coated electric wire exposed from the sheath of the shielded electric wire, respectively, without gaps. Therefore, even if water adheres to the first coated electric wire or the second coated electric wire that penetrates the first region and the second region of the waterproof member and projects to the outside of the exterior member, the first coated electric wire or the second coating is provided. It is possible to prevent water from entering the inside of the waterproof member along the electric wire. As a result, the water on the relay terminal, which is the connection part of the second coated wire, and the water that has penetrated into the inside through the first coated wire are between the electromagnetic shield member of the shielded wire and the first coated wire or sheath. Problems such as short circuits that occur through the gaps and reach devices such as connectors are prevented.

In addition, it can be easily confirmed that there is no gap between the first coated electric wire, the second coated electric wire, and the waterproof member penetrating the waterproof member. In comparison, excellent waterproofness can be stably exhibited. Further, as compared with the case of the resin-based waterproofing agent, the waterproof member easily follows the bending deformation applied to the electric wire, and the waterproof member is suppressed from peeling from the coating of the first coated electric wire and the second coated electric wire. .. As a result, the desired waterproof performance of the waterproof member can be stably improved.

The shielded electric wire penetrating the exterior member and the first coated electric wire penetrating the electromagnetic shield member coated on the sheath of the shielded electric wire may be singular or plural, and when a plurality of the first coated electric wires are included. The waterproof member includes a plurality of first regions that cover the outer peripheral surfaces of the first coated electric wires without gaps. Similarly, the number of the second coated electric wires may be one or more, and when a plurality of the second coated electric wires are included, the plurality of second regions covering the outer peripheral surfaces of the second coated electric wires without gaps are waterproof. Included in the member.

(2) The waterproof member includes a self-bonding tape, and the self-bonding tape is wound around a first winding portion wound around the outer peripheral surface of the first exposed portion and around the outer peripheral surface of the second coated electric wire. The first region of the waterproof member includes the first winding portion, and the second region of the waterproof member includes the second winding portion. Is preferable. The first region of the waterproof member is configured by, for example, the first winding portion of the self-bonding tape being wound tightly over the entire circumferential direction of the outer peripheral surface of the first coated electric wire, or the second region of the waterproof member is, for example. The second winding portion of the self-bonding tape can be wound around the outer peripheral surface of the second coated electric wire without a gap over the entire length in the circumferential direction, and the first region and the second region are provided with a simple structure. Because it can be done. Alternatively, the first region and the second region can be configured by partially including, for example, the first winding portion and the second winding portion, respectively, and a good degree of freedom in design can be exhibited.

Further, since the self-bonding tape is used to form a waterproof member through which the first coated electric wire and the second coated electric wire penetrate, it is cheaper than the case where a waterproof member such as a grommet is separately molded. A waterproof member can be provided.

(3) In the above (2), the shielded electric wire is a plurality of wires, the first exposed portion is a plurality of each of the plurality of shielded electric wires, and the self-bonding tape is a plurality of the shielded electric wires. It has a plurality of the first winding portions by being wound around each outer peripheral surface of the first exposed portion, and the plurality of first winding portions are inside the innermost peripheral side of the plurality of first winding portions. It has a circumferential winding portion and an additional winding portion on the outer peripheral side of the inner peripheral winding portion among the plurality of first winding portions, and one of the plurality of first coated electric wires is the inner peripheral winding portion. It is preferable that the remaining of the plurality of first coated electric wires individually penetrates the additional winding portion. When a plurality of first coated electric wires are included, the first region through which the first one first coated electric wire penetrates is configured to include the inner peripheral winding portion which is the first winding portion on the innermost peripheral side. For each first region through which each of the first coated electric wires added thereafter penetrates, the outer peripheral surface of the first winding portion or the second winding portion that is in close contact with each first coated electric wire sandwiched between them, and the first winding portion. Alternatively, it can be configured by an additional winding portion of the self-bonding tape, which is the first winding portion on the outer peripheral side of the inner peripheral winding portion, which is overlapped and wound on the outer peripheral surface of the second winding portion. As a result, a plurality of first regions can be advantageously configured while reducing the amount of self-bonding tape used by skillfully utilizing the outer peripheral surface of the first winding portion or the second winding portion provided earlier. ..

(4) The shielded electric wire is a plurality of wires, the second coated electric wire is one, and the second exposed portion is a plurality of each of the plurality of shielded electric wires. It is preferable that the two exposed portions are electrically connected to the second core electric wire via the relay terminal. This is because the electromagnetic shield members of a plurality of shielded electric wires can be collectively grounded by using one second coated electric wire, and the workability of assembling the wire harness to the vehicle can be improved. Further, the number of waterproof points can be reduced as compared with the case where the electromagnetic shield members of a plurality of shielded electric wires are taken out to the outside via individual second coated electric wires and grounded. Further, the number of the second regions through which the second coated electric wire provided in the waterproof member penetrates can be reduced, the risk of water ingress from the waterproof member can be reduced, and the waterproof performance of the wire harness can be improved.

(5) It is preferable that the first adhesive tape is provided around the waterproof member, and the first adhesive tape presses the waterproof member against the first exposed portion and the second coated electric wire. Since the waterproof member is pressed against the first exposed portion and the second coated electric wire by the first adhesive tape wrapped around the waterproof member, there is a gap between the waterproof member and the first coated electric wire or the second coated electric wire. This is because it is possible to advantageously maintain the state in which there is no water, and not only can the waterproofness of the wire harness be stably maintained, but also the deterioration of the waterproofness over time can be suppressed.

(6) A second adhesive tape wrapped around the waterproof member is provided, the waterproof member has an inward extending portion covered with the exterior member, and the inward extending portion includes the first region and the said. It is preferable that the second adhesive tape includes the second region and presses the inwardly extending portion against the first exposed portion and the second coated electric wire. Since the inward extending portion of the waterproof member has a first region and a second region, a waterproof structure can be provided in a wide range by utilizing the existing space inside the exterior member, and the wire harness can be space-efficiently provided. This is because the waterproof property can be improved. Further, by pressing the inward extending portion against the first exposed portion and the second coated electric wire by the second adhesive tape, the first region and the second region in the inward extending portion are pressed against the first coated electric wire and the second coated electric wire. It can be held in close contact with the electric wire, and the possibility of a gap being formed between them can be reduced. Moreover, for example, by covering the inward extending portion with the second adhesive tape, it is possible to reduce the possibility that the inward extending portion of the self-bonding waterproof member adheres to the exterior member.

(7) The waterproof member is formed on an outward extending portion extending from the opening of the exterior member toward the outside of the exterior member, an outer peripheral surface of the outer extending portion, and an outer peripheral surface of the exterior member. The outer peripheral cylinder portion that is in close contact with the outer peripheral member and the lid portion that covers the opening of the exterior member are included, the outward extending portion includes the first region and the second region, and the lid portion is the outer peripheral portion. It is preferable that the tubular portion and the outward extending portion are integrated by self-fusion. This is because by forming such a lid portion, it is possible to stably realize the sealing of the opening of the exterior member by the waterproof member and the fixing of the waterproof member to the exterior member.

<Details of Embodiments of the present disclosure>
Specific examples of the wire harness of the present disclosure will be described below with reference to the drawings. It should be noted that the present disclosure is not limited to these examples, and is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

<Embodiment 1>
Hereinafter, the first embodiment of the present disclosure will be described with reference to FIGS. 1 to 4D. The wire harness 10 electrically connects, for example, a vehicle inverter and a compressor. The wire harness 10 is connected to a connector on the inverter side (not shown) on the left side in FIG. Further, the wire harness 10 is connected to a connector on the compressor side (not shown) on the right side in FIG. In the drawings, the exterior member (corrugated tube 16 described later) is shown in a vertical cross section for the sake of easy viewing of the internal structure. Further, in the drawings, for the sake of clarity, the thickness dimensions of the self-bonding tapes α and β, the first and second adhesive tapes 56 and 57, the binding band 68, and the like, which will be described later, are exaggerated. Further, in the following description, the left side in FIG. 1 will be described as the front side, and the right side in FIG. 1 will be described as the rear side. However, it does not always match the direction of the wire harness 10 when it is attached to the vehicle.

<Wire harness 10>
The wire harness 10 includes a shielded electric wire 12 connected to a connector on the inverter side and a connector on the compressor side. The shielded electric wire 12 includes the first coated electric wire 13. Further, the wire harness 10 includes a second coated electric wire 14 that is electrically connected to an electromagnetic shield member (braided member 24), which will be described later, which constitutes the shielded electric wire 12. The electromagnetic shield member (braided member 24) of the shielded electric wire 12 and the second coated electric wire 14 are electrically connected by a splice terminal 15 as a relay terminal. Furthermore, the shielded electric wire 12, the second coated electric wire 14, and the splice terminal 15 are covered with a corrugated tube 16 as an exterior member. Then, in the corrugated tube 16, the one end side of the shielded electric wire 12, that is, the opening 18 on the front side, which is the side to which the connector on the inverter side is connected, is waterproof to prevent water from entering the inside of the corrugated tube 16. A member 20 is provided. In the first embodiment, two shielded electric wires 12a and 12b are provided. However, the number of shielded electric wires is not limited, and may be one or three or more.

<Shielded wire 12>
The shielded electric wire 12 covers the first coated electric wire 13, the braided member 24 as an electromagnetic shield member that covers the periphery of the first coated electric wire 13 and electromagnetically shields the first coated electric wire 13, and the electromagnetic shield member (braided member 24). Includes an insulating sheath 26.

The first coated electric wire 13 includes a first core electric wire 28 made of a conductive metal and a first insulating coating 30 that covers the first core electric wire 28. The first insulating coating 30 may be formed in a tubular shape, for example, and may be formed of a soft synthetic resin or the like.

The braided member 24 is, for example, a tubular member formed by braiding a thin metal wire having conductivity. In the initial state before the second coated electric wire 14 is connected to the braided member 24, the braided member 24 covers the circumference of the first coated electric wire 13 over a substantially overall length in the length direction. The braided mode of the thin metal wire in the braided member 24 is not limited. As the braided member 24, a conventionally known braided structure, knitted or woven structure, or the like can be appropriately adopted.

The sheath 26 is a cylindrical member made of, for example, a soft synthetic resin. In the initial state before the second coated electric wire 14 is connected to the braided member 24, the sheath 26 covers the first coated electric wire 13 and the braided member 24 over a substantially overall length in the length direction.

In the first embodiment, the sheath 26 is peeled off over a certain length on one end side (front side) of the shielded electric wire 12. As a result, the braided member 24 is exposed to the outside from the sheath 26. The exposed portion of the braided member 24 to the outside is the second exposed portion 32. In particular, in the first embodiment, the sheaths 26 and 26 are peeled off in each of the two shielded electric wires 12a and 12b to expose the second exposed portions 32 and 32 in the braided members 24 and 24.

Further, the second exposed portions 32 and 32 are folded back to the rear side which is the other end side of the shielded electric wires 12a and 12b. As a result, the first coated electric wires 13 and 13 are exposed from the sheaths 26 and 26 and the braided members 24 and 24 on the front side, which is one end side of the two shielded electric wires 12a and 12b. The exposed portions of the first coated electric wires 13 and 13 to the outside are the first exposed portions 34 and 34.

<Splice terminal 15>
The rear ends of the folded second exposed portions 32, 32 are electrically connected to the splice terminal 15. That is, the braided members 24, 24 for two circuits are co-pressed to the splice terminal 15. The rear end portions of the folded second exposed portions 32, 32 may be bundled. In short, the second exposed portions 32, 32 (braided members 24, 24) may be collectively electrically connected to the relay terminal (splice terminal 15).

In the first embodiment, the splice terminal 15 is located behind the peeled portion of the sheath 26. Therefore, the splice terminal 15 can be stably positioned inside the corrugated tube 16. In particular, by providing the splice terminal 15 at the rear end of the second exposed portions 32, 32 folded back, the splice terminal 15 can be provided at a position separated from the opening 18 of the corrugated tube 16 to some extent. This reduces the possibility that the splice terminal 15 will affect the attachment of the waterproof member 20 to the opening 18 of the corrugated tube 16. Further, the intermediate portion of the second coated electric wire 14 in the length direction can be more stably inserted into the waterproof member 20. As a result, as will be described later, the gap between the outer peripheral surface of the second coated electric wire 14 and the waterproof member 20 can be substantially eliminated. Therefore, the possibility of water entering from the insertion portion of the second coated electric wire 14 in the waterproof member 20 can be effectively reduced.

<Second coated electric wire 14>
The second coated electric wire 14 includes a second core electric wire 38 having conductivity and a second insulating coating 40 that covers the second core electric wire 38. The second coated electric wire 14 extends to the front side, which is one end side of the shielded electric wire 12. That is, one end of the second coated electric wire 14 is electrically connected to the second exposed portion 32 via a relay terminal (splice terminal 15). Specifically, at one end of the second coated electric wire 14, the second insulating coating 40 is peeled off to expose the second core electric wire 38. The second core electric wire 38 is electrically connected to the splice terminal 15.

A plurality of second coated electric wires may be provided, but in the first embodiment, one second coated electric wire 14 is provided. Then, the braided members 24 and 24 of the two shielded electric wires 12a and 12b are electrically connected to one second coated electric wire 14 via the splice terminal 15. In other words, the splice terminal 15 electrically connects the second core electric wire 38 of the second coated electric wire 14 and the second exposed portions 32 and 32 of the shielded electric wires 12a and 12b collectively. Then, the other end of the second coated electric wire 14 extends forward. In the first embodiment, the second coated electric wire 14 is a grounding electric wire. That is, a ground terminal 42 is provided at the other end (front end) of the second coated electric wire 14. The electromagnetic shield member (braided member 24) is grounded by grounding the ground terminal 42 to a high-voltage housing, a vehicle body panel, or the like.

<Waterproof member 20>
The waterproof member 20 has self-bonding properties. In the first embodiment, the waterproof member 20 includes the self-bonding tape α. The self-bonding tape α is a substantially strip-shaped member having flexibility. Then, the self-bonding tape α can be cut to an arbitrary length and used. The self-bonding tape α is made of, for example, butyl rubber, silicon rubber, or the like. The self-bonding tape α is preferably, for example, having a tape thickness of 2 mm or more. In the first embodiment, a butyl rubber tape having a tape thickness of 3 mm is used as the self-bonding tape α.

Then, as shown in FIG. 2, the outer peripheral surfaces of the first exposed portions 34, 34 and the second coated electric wire 14 of the first coated electric wires 13 and 13 of the shielded electric wires 12a and 12b are all self-bonded. It is covered with tape α without any gaps. In the first embodiment, in the waterproof member 20 (self-bonding tape α), the portion of the shielded electric wire 12 that covers the first exposed portion 34 of the first coated electric wire 13 is the first region 44. Further, in the waterproof member 20 (self-bonding tape α), the portion covering the second coated electric wire 14 is the second region 46. In particular, in the first embodiment, since the plurality of shielded electric wires 12a and 12b are provided, the plurality of first regions 44a and 44b are provided.

Here, inside the corrugated tube 16, the second exposed portions 32, 32 of the braided members 24, 24 of the shielded electric wires 12a, 12b and the splice terminals 15 connected to the second exposed portions 32, 32 are housed. There is. Then, the first exposed portions 34, 34 of the first coated electric wires 13 and 13 of the shielded electric wires 12a and 12b penetrate through the first regions 44a and 44b of the waterproof member 20. Further, the second coated electric wire 14 penetrates the second region 46. As a result, the first exposed portions 34, 34 and the second coated electric wire 14 of the first coated electric wires 13 and 13 project to the outside of the corrugated tube 16. The first regions 44a and 44b and the second region 46 are formed over the entire length of the waterproof member 20 in the front-rear direction.

The waterproof member 20 covers the opening 18 of the corrugated tube 16. In the first embodiment, the rear portion of the waterproof member 20 extends inward from the opening 18 of the corrugated tube 16 and is arranged inside the corrugated tube 16. Further, the front portion of the waterproof member 20 extends outward from the opening 18 of the corrugated tube 16. Therefore, the rear portion of the self-bonding tape α is the inward extending portion 48 covered by the exterior member (corrugated tube 16). The inward extending portion 48 extends from the opening 18 of the corrugated tube 16 toward the inside of the corrugated tube 16, that is, the other end of the shielded wire 12 (right side in FIG. 1). Further, the front portion of the self-bonding tape α is an outward extending portion 50 extending from the opening 18 of the corrugated tube 16 to the outside of the corrugated tube 16. The outward extending portion 50 extends from the opening 18 of the corrugated tube 16 toward one end (left side in FIG. 1) of the shielded electric wire 12. Since the first regions 44a and 44b and the second region 46 are formed over the entire length of the waterproof member 20 in the front-rear direction, the inward extending portion 48 and the outward extending portion 50 are formed in the first region 44a, respectively. It has 44b and a second region 46.

Further, the self-bonding tape β is further wound around the outer peripheral side of the self-bonding tape α. Specifically, the self-bonding tape β is formed from the first exposed portions 34, 34 and the second coated electric wire 14 in the first coated electric wires 13 and 13 located in front of the self-bonding tape α to the front portion of the corrugated tube 16. It is wrapped. As a result, the self-bonding tape β is in close contact with both the outer peripheral surface of the outward extending portion 50 and the outer peripheral surface of the opening side end portion of the corrugated tube 16. As a result, the outer peripheral cylinder portion 52 that is in close contact with the outer peripheral surface of the outer extending portion 50 and the outer peripheral surface of the opening side end portion of the corrugated tube 16 is configured to include the self-bonding tape β.

In the first embodiment, the material of the self-bonding tape β is butyl rubber, which is the same as the material of the self-bonding tape α. As a result, both self-bonding tapes α and β are brought into contact with each other and self-fused to be integrated. The outer extension portion 50 and the outer peripheral cylinder portion 52 (self-bonding tape β) are integrated by self-fusion to form a lid portion 54 that covers the opening 18 of the corrugated tube 16. In the following description, for convenience, the self-bonding tape α and the self-bonding tape β will be described separately. However, the material of the self-bonding tape α and the material of the self-bonding tape β may be different from each other. Further, both self-bonding tapes α and β do not have to be integrated.

Therefore, in the first embodiment, the waterproof member 20 includes the self-bonding tape β in addition to the self-bonding tape α. In short, a portion of the waterproof member 20 located mainly on the inner peripheral side and housed inside the opening 18 of the corrugated tube 16 is formed of the self-bonding tape α. Further, a portion of the waterproof member 20 that is located mainly on the outer peripheral side and covers the opening 18 of the corrugated tube 16 from the outer peripheral side is formed of a self-bonding tape β.

Further, in the first embodiment, as shown in FIG. 1, an insulating first adhesive tape 56 is wrapped around the outer peripheral surface of the waterproof member 20. As a result, the waterproof member 20 is fixed to the corrugated tube 16 in a state of covering the opening 18 of the corrugated tube 16. In particular, in the first embodiment, the first adhesive tape 56 is wound around the outer peripheral surface of the waterproof member 20, so that the waterproof member 20 has the first exposed portions 34, 34 and the second coated electric wire in the first coated electric wires 13 and 13. It is pressed against each outer peripheral surface of 14.

Furthermore, in the first embodiment, as shown in FIG. 4A and the like described later, an insulating second adhesive tape 57 is wrapped around the outer peripheral surface of the inward extending portion 48 of the waterproof member 20. In particular, in the first embodiment, the second adhesive tape 57 is wound around the outer peripheral surface of the inward extending portion 48, so that the inward extending portion 48 becomes the first exposed portion 34 in the first coated electric wires 13, 13. It is pressed against each outer peripheral surface of 34 and the second coated electric wire 14.

<Assembly process of wire harness 10>
Hereinafter, FIGS. 3A to 4D show specific examples of a procedure in which the waterproof member 20 including the self-bonding tapes α and β is provided in the opening 18 of the corrugated tube 16 and the wire harness 10 is assembled. explain. However, the procedure for providing the waterproof member 20 is not limited to the mode described below. The right side view in FIGS. 3A to 3F is a vertical cross-sectional view at the position of the alternate long and short dash line in the front view on the left side. Further, FIGS. 4A to 4D are views of the process of providing the waterproof member 20 as viewed from the front. That is, FIGS. 4A to 4D are views continuing from the left side view in FIGS. 3A to 3F.

First, in the two shielded electric wires 12a and 12b, the sheaths 26 and 26 on one end side (front side) are peeled off to expose the second exposed portions 32 and 32 in the braided members 24 and 24. Subsequently, the second exposed portions 32, 32 are folded back to expose the first exposed portions 34, 34 in the first coated electric wires 13, 13. Further, at one end of the second coated electric wire 14, the second insulating coating 40 is peeled off to expose the second core electric wire 38. Then, the rear ends of the folded second exposed portions 32, 32 and the second core electric wire 38 in the second coated electric wire 14 are electrically connected via the splice terminal 15. The connection between the second exposed portions 32, 32 and the second core electric wire 38 by the splice terminal 15 is performed after the second adhesive tape 57 is wound around the self-bonding tape α, for example, as will be described later (state of FIG. 4A). May be performed before the exterior of the corrugated tube 16 (state of FIG. 4C).

Then, as shown in FIG. 3A, a self-bonding tape α having a certain length is prepared. The first coated electric wire 13 of one of the two shielded electric wires 12a is superposed on the self-bonding tape α. Specifically, for example, the sheath 26 is peeled off at the shielded electric wire 12a and the braided member 24 is folded back and exposed at one end of the self-bonding tape α in the length direction (the upper end of the figure on the left side of FIG. 3A). The first exposed portion 34 of the first coated electric wire 13 that has been made to overlap is overlapped.

After that, as shown in FIG. 3B, the self-bonding tape α is wound once, and the self-bonding tape α is wound around the outer peripheral surface of the first exposed portion 34 of the first coated electric wire 13 of the shielded electric wire 12a in the circumferential direction. Wrap it over the entire length. Since the self-bonding tape α has flexibility, the self-bonding tape α is deformed along the shape of the first exposed portion 34, so that the outer peripheral surface of the first exposed portion 34 and the self-bonding tape are self-bonded. There is almost no gap between it and α. In the first embodiment, the portion of the self-bonding tape α that is wound around the outer peripheral surface of the first exposed portion 34 is the first winding portion 58. In particular, in the first embodiment, since the plurality of shielded electric wires 12a and 12b are provided, the plurality of first winding portions 58a and 58b to be wound around the outer peripheral surfaces of the plurality of first exposed portions 34 and 34 are provided. Has been done. The portion wound around the first exposed portion 34 of the shielded electric wire 12a located on the innermost peripheral side is the inner peripheral winding portion 60 (first region 44a) constituting the first winding portion 58a on the innermost peripheral side. ..

Subsequently, as shown in FIG. 3C, the first coated electric wire 13 of the other shielded electric wire 12b of the two is formed on the outer peripheral surface of the inner peripheral winding portion 60 (first region 44a) constituting the first winding portion 58a. Overlay. That is, the first exposed portion 34 of the first coated electric wire 13 in which the sheath 26 is peeled off from the shielded electric wire 12b and the braided member 24 is folded back and exposed is overlapped with the outer peripheral surface of the inner peripheral winding portion 60.

Then, as shown in FIG. 3D, the self-bonding tape α is further wound around the self-bonding tape α with respect to the outer peripheral surface of the first exposed portion 34 of the first coated electric wire 13 of the shielded electric wire 12b. Wrap over the entire length of the direction. As a result, the self-bonding tape α is deformed along the shape of the first exposed portion 34 so that a gap is not substantially formed between the outer peripheral surface of the first exposed portion 34 and the self-bonding tape α. There is. In the first embodiment, in the self-bonding tape α, the portion of the other shielded wire 12b that is wound around the first exposed portion 34 of the first coated electric wire 13 forms the first winding portion 58b on the outer peripheral side of the inner peripheral winding portion 60. It is an additional winding part 62 which constitutes. That is, the outer peripheral surface of the inner peripheral winding portion 60 and the additional winding portion 62 are overlapped and brought into close contact with each other with the first exposed portion 34 of the first coated electric wire 13 of the other shielded electric wire 12b sandwiched between them.

As mentioned above, it is possible to provide three or more shielded wires. Therefore, in the self-bonding tape α, the portion wound around the first exposed portion of the first coated electric wire of the first shielded electric wire is the inner peripheral winding portion 60. Further, in the self-bonding tape α, the portion wound around the first exposed portion of the first coated electric wire of the second and subsequent shielded electric wires is an additional winding portion 62. In other words, the first coated electric wire of the first shielded electric wire penetrates the first region including the inner peripheral winding portion which is the first winding portion on the innermost peripheral side. Further, the first coated electric wire of the remaining shielded electric wire individually penetrates the first region including the additional winding portion which is the first winding portion on the outer peripheral side of the inner peripheral winding portion. ..

After that, as shown in FIG. 3E, the intermediate portion in the length direction of the second coated electric wire 14 is overlapped with the outer peripheral surface of the additional winding portion 62.

Then, as shown in FIG. 3F, the remaining portion of the self-bonding tape α is wound around the outer peripheral surface of the second coated electric wire 14. As a result, the self-bonding tape α is deformed along the shape of the second coated electric wire 14, so that a gap is not substantially formed between the outer peripheral surface of the second coated electric wire 14 and the self-bonding tape α. There is. In the first embodiment, the portion of the self-bonding tape α that is overlapped with the outer peripheral surface of the additional winding portion 62 and wound around the outer peripheral surface of the second coated electric wire 14 is the second winding portion 64. That is, the outer peripheral surface of the additional winding portion 62 and the second winding portion 64 are overlapped and brought into close contact with each other with the second coated electric wire 14 sandwiched between them.

That is, in the first embodiment, the first region 44a covering the first exposed portion 34 of the first coated electric wire 13 of the one shielded electric wire 12a is the inner peripheral winding portion 60 which is the first winding portion 58a of the self-bonding tape α. It is composed of. Further, the first region 44b covering the first exposed portion 34 of the first coated electric wire 13 of the other shielded electric wire 12b is superposed on the outer peripheral surface of the inner peripheral winding portion 60 and the outer peripheral surface of the inner peripheral winding portion 60. It is composed of an additional winding portion 62 which is a first winding portion 58b of the fusion tape α. Further, the second region 46 covering the second coated electric wire 14 is composed of the second winding portion 64 of the self-bonding tape α superposed on the outer peripheral surface of the additional winding portion 62 and the outer peripheral surface of the additional winding portion 62. There is.

Subsequently, as shown in FIG. 4A, the insulating second adhesive tape 57 is wound around the self-bonding tape α wound around both the first exposed portions 34 and 34 and the second coated electric wire 14. Specifically, in the self-bonding tape α, the first exposed portions 34, 34 and the second exposed portions 34, 34 and the second rear of the self-bonding tape α are left to some extent on one end side (front end side) of the shielded wires 12a and 12b. The second adhesive tape 57 is wound around the covered electric wire 14. As a result, the self-bonding tape α can be pressed against the inner peripheral side to further reduce the gap between the first exposed portions 34, 34 and the second coated electric wire 14 and the self-bonding tape α. Further, it is also possible to adjust the outer shape of the self-bonding tape α wound around both the first exposed portions 34 and 34 and the second coated electric wire 14 to some extent. That is, the outer shape of the self-bonding tape α can be, for example, a circular shape (including a perfect circle, an oval, an ellipse, etc.) with substantially no unevenness on the outer peripheral surface. The second adhesive tape 57 is provided behind the self-bonding tape α not only to the first exposed portions 34 and 34 and the second coated electric wire 14, but also to the braided members 24 and 24, the splice terminals 15, and the sheaths 26 and 26. It may also be wrapped so as to cover it.

Since the second adhesive tape 57 is wound except for the front end portion of the self-bonding tape α, the second adhesive tape 57 cannot be wrapped around the outer peripheral surface of the front end portion of the outward extending portion 50. Further, the outer peripheral surface of the inward extending portion 48, which is the rear portion of the self-bonding tape α, is covered with the tape winding of the second adhesive tape 57.

Further, as shown in FIG. 4B, in the self-bonding tape α around which the second adhesive tape 57 is wound, the binding band 68 is wound and fixed around the substantially central portion of the shielded electric wires 12a and 12b in the extending direction (front-back method). do.

After that, as shown in FIG. 4C, the corrugated tube 16 is extrapolated and attached to the self-bonding tape α around which the second adhesive tape 57 is wound from the other end side (rear side) of the shielded electric wires 12a and 12b. do. In other words, the self-bonding tape α wound around the first exposed portions 34, 34 and the second coated electric wire 14 is inserted through the opening 18 of the corrugated tube 16. The exterior of the corrugated tube 16 is performed until the peripheral portion of the opening 18 in the corrugated tube 16 and the binding band 68 come into contact with each other. That is, the binding band 68 positions the corrugated tube 16 in the front-rear direction with respect to the self-bonding tape α. Further, the binding band 68 defines the relative position of the corrugated tube 16 and the self-bonding tape α in the front-rear direction.

In the first embodiment, as described above, when the corrugated tube 16 is attached to the self-bonding tape α, the peripheral portion of the opening 18 in the corrugated tube 16 and the binding band 68 come into contact with each other. Therefore, in a state where the waterproof member 20 is fixed to the opening 18 of the corrugated tube 16, the rear side of the self-bonding tape α around the portion around which the binding band 68 is wound is covered with the corrugated tube 16. The extension portion 48. Further, in front of the portion of the self-bonding tape α around which the binding band 68 is wound, the above-mentioned outward extending portion 50 extends from the opening 18 of the corrugated tube 16 toward the outside of the corrugated tube 16.

Then, as shown in FIG. 4D, with the corrugated tube 16 abutted against the binding band 68, from the first exposed portions 34, 34 and the second coated electric wire 14 located in front of the self-bonding tape α. The self-bonding tape β is wrapped around the entire circumference in the circumferential direction so as to straddle the front portion of the corrugated tube 16. As a result, the outer peripheral cylinder portion 52 of the waterproof member 20 is configured. Further, the front end portion of the outward extending portion 50 to which the second adhesive tape 57 is not wound and the outer peripheral tubular portion 52 (self-bonding tape β) are integrated by self-bonding to form the lid portion 54. In this way, the waterproof member 20 including the self-bonding tapes α and β is completed.

After that, the insulating first adhesive tape 56 is wrapped around the outer peripheral surface of the waterproof member 20. Specifically, in addition to the self-bonding tape β constituting the waterproof member 20, the self-bonding tape β is provided from the first exposed portions 34, 34 and the second coated electric wire 14 located in front of the self-bonding tape β. The first adhesive tape 56 is wrapped around the outer peripheral surface of the corrugated tube 16 behind the corrugated tube 16. As a result, the wire harness 10 is completed. The waterproof member 20 is fixed to the opening 18 of the corrugated tube 16 at the same time as the waterproof member 20 is completed by wrapping the self-bonding tape β, but the first adhesive tape 56 is wrapped around the waterproof member 20 on the inner peripheral side. It can be fixed more firmly by pressing it against.

In the wire harness 10 of the first embodiment having the above structure, the waterproof member 20 is provided in the opening 18 of the corrugated tube 16. As a result, water is suppressed from entering behind the waterproof member 20, that is, inside the corrugated tube 16. In particular, the braided members 24 and 24 of the shielded electric wires 12a and 12b, and the splice terminal 15 which is a connecting portion between the second exposed portions 32 and 32 and the second core electric wire 38 are housed inside the corrugated tube 16. Therefore, the possibility that the connecting portion (splice terminal 15) between the braided members 24 and 24 and the second exposed portions 32 and 32 and the second core electric wire 38 is exposed to water is reduced, and the electromagnetic shield member (braided member 24) is affected. The electromagnetic shielding effect can also be exhibited well.

Further, the outer peripheral surfaces of the first exposed portions 34, 34 and the second coated electric wire 14 in the first coated electric wires 13 and 13 of the shielded electric wires 12a and 12b are the first regions 44a and 44b and the second region 46 of the waterproof member 20, respectively. Covers tightly. Therefore, it is difficult for water to enter through the insertion portions of the first exposed portions 34, 34 and the second coated electric wire 14 in the waterproof member 20. In particular, in the first embodiment, for example, instead of bundling the shielded electric wire and the second coated electric wire with a vinyl tape or a binding band and then winding the self-bonding tape, the electric wire (the first exposed portion of the first coated electric wires 13 and 13) is used. A self-bonding tape α is wound around each of 34, 34 and the second coated electric wire 14). As a result, there is no gap between the electric wires (first exposed portions 34, 34 of the first coated electric wires 13 and 13 and the second coated electric wire 14), and the possibility of water entering through the gap can be reduced.

Further, in the step of forming the waterproof member 20, for example, at the stage of FIG. 3F described above, the outer peripheral surfaces of the first exposed portions 34, 34 and the second coated electric wire 14 in the first coated electric wires 13 and 13 of the shielded electric wires 12a and 12b. It is possible to confirm from the outside whether or not there is a gap between the self-bonding tape α and the self-bonding tape α. Even if there is a gap, the gap can be eliminated or reduced by rewinding the self-bonding tape α or wrapping the second adhesive tape 57 around the outer peripheral surface of the self-bonding tape α, so that it is waterproof. Performance can be improved. Furthermore, since the self-bonding tape α is flexible, even when the wire harness 10 is bent, it deforms following the first exposed portions 34, 34 and the second coated electric wire 14 of the shielded electric wires 12a and 12b. be able to. As a result, there is a further possibility that a gap may be generated between the outer peripheral surfaces of the first exposed portions 34, 34 and the second coated electric wire 14 in the first coated electric wires 13 and 13 of the shielded electric wires 12a and 12b and the self-bonding tape α. It can be reduced and the waterproof performance can be further improved.

Further, since the waterproof member 20 of the first embodiment is formed by including the self-bonding tapes α and β, it is used for mold molding as compared with the case where a waterproof member such as a grommet is formed by mold molding or the like. It does not require equipment and can be formed inexpensively and easily.

Further, in the first embodiment, the first regions 44a and 44b wound around the outer peripheral surfaces of the first exposed portions 34 and 34 of the first coated electric wires 13 and 13 of the shielded electric wires 12a and 12b are the first self-bonding tape α. It is configured to include winding portions 58a and 58b. Further, the second region 46 wound around the outer peripheral surface of the second coated electric wire 14 includes the second winding portion 64 of the self-bonding tape α. That is, as compared with the case where the first regions 44a and 44b and the second region 46 are formed by separate self-bonding tapes, the number of work steps can be reduced and the amount of self-bonding tape required can be suppressed. , The waterproof member 20 can be formed more inexpensively and easily.

Furthermore, in the first embodiment, two shielded electric wires 12a and 12b are provided, and the waterproof member 20 is provided with two first regions 44a and 44b. On the other hand, the first region 44a is composed of the inner peripheral winding portion 60, which is the first winding portion 58a on the innermost peripheral side. The other first region 44b is composed of an outer peripheral surface of the inner peripheral winding portion 60 and an additional winding portion 62 overlapped with the outer peripheral surface of the inner peripheral winding portion 60. That is, for example, even when three or more shielded electric wires are provided, the inner peripheral winding portion and the additional winding portion can be provided on the same self-bonding tape. This makes it possible to form the waterproof member more inexpensively and easily.

Further, in the first embodiment, the second exposed portions 32, 32 of the braided members 24, 24 of the two shielded electric wires 12a, 12b are connected to the second core of one second coated electric wire 14 via the splice terminal 15, respectively. It is electrically connected to the electric wire 38. As a result, the number of work steps can be reduced as compared with the case where the second coated electric wire is pulled out from each of the braided members. Further, the number of the second coated electric wires can be reduced as compared with the case where the second coated electric wires are pulled out from each of the braided members. Therefore, in the waterproof member 20, the number of the second regions 46 through which the second coated electric wire 14 penetrates can be reduced. As a result, the risk of water intrusion through the second region 46 can be reduced.

Further, in the first embodiment, the second adhesive tape 57 is wound around the outer peripheral surface of the self-bonding tape α. The self-bonding tape α is pressed against the inner peripheral side by the second adhesive tape 57. As a result, a gap is generated between the outer peripheral surfaces of the first exposed portions 34, 34 and the second coated electric wire 14 in the first coated electric wires 13 and 13 of the two shielded electric wires 12a and 12b and the self-bonding tape α. The risk can be reduced. As a result, the risk of water entering the corrugated tube 16 through the waterproof member 20 can be further reduced. Further, the first adhesive tape 56 is wound around the outer peripheral surface of the self-bonding tape β. By pressing the self-bonding tape β to the inner peripheral side by the first adhesive tape 56, the outer peripheral surfaces of the first exposed portions 34, 34 and the second coated electric wire 14 and the self-bonding tape α are separated as described above. The generation of gaps is suppressed. Not only that, the first adhesive tape 56 can also strengthen the fixing between the waterproof member 20 and the corrugated tube 16.

Furthermore, in the first embodiment, the rear portion of the self-bonding tape α wound around the first exposed portions 34, 34 and the second coated electric wire 14 of the first coated electric wires 13 and 13 is covered with the corrugated tube 16. It is a direction extension part 48. Then, the second adhesive tape 57 is wound across the first exposed portions 34, 34 and the second coated electric wire 14 behind the inward extending portion 48. As a result, the inward extending portion 48 and the corrugated tube 16 are prevented from coming into contact with each other and sticking to each other. Further, for example, it is possible to reduce the possibility that the self-bonding tape α is unintentionally displaced or dropped from the first exposed portions 34, 34 and the second coated electric wire 14 when the corrugated tube 16 is assembled.

Further, in the first embodiment, the front portion of the self-bonding tape α wound around the first exposed portions 34, 34 and the second coated electric wire 14 of the first coated electric wires 13 and 13 is formed from the opening 18 of the corrugated tube 16. An outward extending portion 50 extending toward the outside of the corrugated tube 16. Furthermore, an outer peripheral cylinder portion 52 made of a self-bonding tape β is provided at the opening side end portion (front side end portion) of the corrugated tube 16. The outer extension portion 50 and the outer peripheral cylinder portion 52 (self-bonding tape β) are integrated to form the lid portion 54. Then, the first adhesive tape 56 is wound from the first exposed portions 34, 34 and the second coated electric wire 14 in front of the lid portion 54 to the corrugated tube 16 behind the lid portion 54. Thereby, the waterproof performance can be improved. Not only that, the first adhesive tape 56 effectively moves the waterproof member 20, the first exposed portions 34, 34, and the second coated electric wire 14, and / or the relative movement of the waterproof member 20 and the corrugated tube 16. Can be prevented.

<Embodiment 2>
The order of the first exposed portion 34 and the second coated electric wire 14 of the first coated electric wire 13 around which the self-bonding tape α is wound when the waterproof member 20 is provided in the opening 18 of the exterior member (corrugated tube 16) is the above-described embodiment. It is not limited to the aspect described in 1. Hereinafter, the second embodiment of the present disclosure will be described with reference to FIG. The wire harness 70 of the second embodiment is different from the wire harness 10 of the first embodiment only in the order of the first exposed portion 34 and the second coated electric wire 14 around which the self-bonding tape α is wound. , Other explanations will be omitted. Further, in the following embodiments, the members and parts substantially the same as those in the first embodiment are designated by the same reference numerals as those in the first embodiment in the drawings, and detailed description thereof will be omitted.

In the second embodiment, first (in the steps of FIGS. 3A and 3B described above), the first exposed portion 34 of the first coated electric wire 13 of one of the shielded electric wires 12a is wound around the self-bonding tape α, and then (in the above-described steps 3A and 3B). The second coated electric wire 14 is wound (in the process of FIGS. 3C and 3D described above). Finally (in the steps of FIGS. 3E and 3F described above), the first exposed portion 34 of the first coated electric wire 13 of the other shielded electric wire 12b is wound around the self-bonding tape α. That is, in the second embodiment, the first region 44a covering the first exposed portion 34 of one of the shielded electric wires 12a is composed of the inner peripheral winding portion 60 which is the first winding portion 58a on the innermost peripheral side. Further, the second region 46 covering the second coated electric wire 14 includes the second winding portion 64 of the self-bonding tape α superposed on the outer peripheral surface of the inner peripheral winding portion 60 and the outer peripheral surface of the inner peripheral winding portion 60. It is composed of. Further, from the inner peripheral winding portion 60 in which the first region 44b covering the first exposed portion 34 of the other shielded electric wire 12b is overlapped with the outer peripheral surface of the second winding portion 64 and the outer peripheral surface of the second winding portion 64. It is configured to include an additional winding portion 62 which is a first winding portion 58b on the outer peripheral side.

The wire harness 70 of the second embodiment is implemented because the order of the first exposed portion 34 and the second coated electric wire 14 around which the self-bonding tape α is wound is different from that of the wire harness 10 of the first embodiment. The same effect as that of the first form can be exhibited.

<Embodiment 3>
Hereinafter, the third embodiment of the present disclosure will be described with reference to FIG. The wire harness 80 of the third embodiment is the first exposed portion 34 and the second coated electric wire 14 around which the self-bonding tape α is wound with respect to the wire harness 10 of the first embodiment and the wire harness 70 of the second embodiment. The order is different.

In the third embodiment, the second coated electric wire 14 is first wound around the self-bonding tape α (in the step of FIGS. 3A and 3B described above), and then one of them (in the process of FIGS. 3C and 3D described above). The first exposed portion 34 of the first coated electric wire 13 of the shielded electric wire 12a is wound. Finally (in the steps of FIGS. 3E and 3F described above), the first exposed portion 34 of the first coated electric wire 13 of the other shielded electric wire 12b is wound around the self-bonding tape α. That is, in the third embodiment, the second region 82 that covers the second coated electric wire 14 is composed of the second winding portion 84 of the self-bonding tape α. Further, the first region 86a covering the first exposed portion 34 of one of the shielded electric wires 12a is overlapped with the outer peripheral surface of the second winding portion 84 and the outer peripheral surface of the second winding portion 84, and is the most inner peripheral side first. It is configured to include an inner winding portion 90 which is a winding portion 88a. Further, from the inner peripheral winding portion 90, the first region 86b covering the first exposed portion 34 of the other shielded electric wire 12b is overlapped with the outer peripheral surface of the inner peripheral winding portion 90 and the outer peripheral surface of the inner peripheral winding portion 90. Also includes an additional winding portion 92, which is the first winding portion 88b on the outer peripheral side.

The wire harness 80 of the third embodiment is also implemented because the order of the first exposed portion 34 and the second coated electric wire 14 around which the self-bonding tape α is wound is different from that of the wire harness 10 of the first embodiment. The same effect as that of the first form can be exhibited.

From the above, the first regions 44a, 44b, 86a, 86b that cover the outer peripheral surface of the first exposed portion 34 of the first coated electric wire 13 of the shielded electric wire 12 without gaps are first exposed as in the first and second embodiments. It can be composed of a first winding portion 58a (inner peripheral winding portion 60) of the self-bonding tape α that is wound over the entire length of the outer peripheral surface of the portion 34 in the circumferential direction. Alternatively, as in the first to third embodiments, the outer peripheral surface of the inner peripheral winding portions 60, 90 or the outer peripheral surface of the second winding portions 64, 84 and the outer peripheral surface or the second winding portion 64 of the inner peripheral winding portions 60, 90. , 84 can be composed of first winding portions 58b, 88a, 88b (inner peripheral winding portion 90, additional winding portions 62, 92) superposed on the outer peripheral surface of. That is, the first region may include the first winding portion (inner winding portion and / or additional winding portion) of the self-bonding tape α.

Further, the second regions 46 and 82 that cover the outer peripheral surface of the second coated electric wire 14 without gaps are the first winding portions 58a and 58b (inner peripheral windings) constituting the first regions 44a and 44b as in the first and second embodiments. It can be composed of an outer peripheral surface of the portion 60 or the additional winding portion 62) and a second winding portion 64 superimposed on the outer peripheral surface of the first winding portions 58a and 58b. Alternatively, as in the third embodiment, it can be configured by the second winding portion 84 of the self-bonding tape α that is wound over the entire circumferential direction of the outer peripheral surface of the second coated electric wire 14. That is, the second region may include the second winding portion of the self-bonding tape α.

Further, in the first and third embodiments, the additional winding portions 62 and 92 are overlapped and wound around the outer peripheral surfaces of the inner peripheral winding portions 60 and 90 to form the first regions 44b and 86b on the outer peripheral side. Alternatively, in the second embodiment, the additional winding portion 62 is overlapped and wound around the outer peripheral surface of the second winding portion 64 to form the first region 44b on the outer peripheral side. That is, when a plurality of first regions through which the first exposed portion 34 and the first exposed portion 34 penetrate are provided, for example, the first one of the first regions (the first region on the inner peripheral side) has an inner winding portion. The remaining first region (first region on the outer peripheral side) is formed on the outer peripheral surface of the first winding portion or the second winding portion and the outer peripheral surface of the first winding portion or the second winding portion. It may consist of additional windings that are stacked and wound.

<Other embodiments>
The techniques described herein are not limited to the embodiments described above and in the drawings, and for example, the following embodiments are also included in the technical scope of the techniques described herein.

(1) In the above embodiment, the electromagnetic shield member is a braided member 24 made of a thin metal wire, but may be, for example, a metal foil or the like. Further, the electromagnetic shield member may include a drain wire connected to a metal braided tube or a metal foil, and a grounding electric wire may be electrically connected to the drain wire.

(2) The circumferential dimensions of the first winding portion, the second winding portion, and the additional winding portion are not limited, and may be shorter than one lap, for example, half lap, or longer than one lap. For example, it may be one and a half laps or two laps in the circumferential direction. The first exposed portions 34, 34 and the second coated electric wire 14 in the first coated electric wires 13 and 13 are not overlapped after winding the self-bonding tape α, for example, at the stage of FIG. 3A described above. The self-bonding tape α is placed on the self-bonding tape α in a state of being separated to some extent in the vertical direction in the left figure, and then the self-bonding tape α is simply wound from one side in the vertical direction in the left side figure of FIG. 3A to the other. You may.

(3) The method for forming the waterproof member is not limited to the embodiment described in the above embodiment. For example, the first exposed portion of one first coated electric wire is overlapped with one end of the self-bonding tape (upper end of the left side of FIG. 3A), and the first exposed portion of the other first coated electric wire is overlapped. 1 Overlay the exposed portion on the other end of the self-bonding tape (lower end of the left side of FIG. 3A), and place the self-bonding tape on both sides of the left side of FIG. 3A in the vertical direction. You may wind it from. In short, it is sufficient that the self-bonding tape is wound around each electric wire (the first exposed portion and the second coated electric wire in the first coated electric wire) with almost no gap, and the winding order, the winding position in the self-bonding tape, and the winding. The number of times of the above is not limited in any way. Further, the thickness dimension of the self-bonding tape is not limited, and can be arbitrarily set according to the size (diameter dimension) of the first exposed portion and the second coated electric wire in the first coated electric wire.

(4) The waterproof member according to the present disclosure may have self-bonding properties, and does not necessarily have to be formed of self-bonding tape. Further, in the above-described embodiment, the self-bonding tape α is wound around the first exposed portions 34, 34 and the second coated electric wire 14 of the first coated electric wires 13, 13, but the present invention is not limited to this embodiment. That is, for example, the first exposed portion and the second coated electric wire are sandwiched between a plurality of self-bonding plate-shaped members, and the plurality of plate-shaped members are sandwiched between the first exposed portion and the second coated electric wire. The waterproof member may be formed by self-bonding to each other. Alternatively, even when the self-bonding tape is adopted, it may be folded to cover the outer peripheral surfaces of the first exposed portion and the second coated electric wire instead of being wound.

(5) In the above embodiment, the braided members 24 and 24 of the two shielded electric wires 12a and 12b are connected to one second coated electric wire 14 via the splice terminal 15, but a plurality of shielded electric wires are provided. If this is the case, the second coated electric wire may extend from the electromagnetic shield member of each shielded electric wire. Alternatively, for example, when two shielded electric wires are provided, the second coated electric wire is electrically connected to the exposed electromagnetic shield member by peeling the sheath of one shielded electric wire, and the first exposed wire in the first coated electric wire. It is sufficient that the portion and the second coated electric wire are inserted through the waterproof member. Then, the waterproof member may be inserted into the other shielded electric wire without being peeled off, and in this other shielded electric wire, a connection structure or a waterproof structure between the electromagnetic shield member and the second coated electric wire is separately provided. It may be provided.

(6) In the above embodiment, the braided members 24, 24, which are electromagnetic shield members, are folded back and connected to the splice terminal 15, but the present invention is not limited to this embodiment. That is, for example, when the exposed amount of the electromagnetic shield member is small, the second coated electric wire may be connected to the electromagnetic shield member in a state of extending forward without being folded back.

(7) In the above embodiment, the splice terminal 15 is adopted as a relay terminal for connecting the electromagnetic shield member (braided member 24) and the second coated electric wire 14, but the specific structure of the relay terminal is particularly limited. It may be any one that electrically connects the electromagnetic shield member and the second coated electric wire.

10 Wire harness 12, 12a, 12b Shielded wire 13 First coated wire 14 Second coated wire 15 Splice terminal (relay terminal)
16 Corrugated tube (exterior member)
18 Opening 20 Waterproof member 24 Braided member (electromagnetic shield member)
26 Sheath 28 1st core wire 30 1st insulation coating 32 2nd exposed portion 34 1st exposed portion 38 2nd core electric wire 40 2nd insulation coating 42 Earth terminal 44, 44a, 44b 1st region 46 2nd region 48 Inside Extension part 50 Outer extension part 52 Outer cylinder part 54 Lid part 56 First adhesive tape 57 Second adhesive tape 58, 58a, 58b First winding part 60 Inner circumference winding part 62 Additional winding part 64 Second winding part 68 Cable tie 70 Wire harness 80 Wire harness 82 2nd area 84 2nd winding part 86a, 86b 1st area 88a, 88b 1st winding part 90 Inner winding part 92 Additional winding part α, β Self-bonding tape

Claims (7)

1. A shielded electric wire including a first coated electric wire, an electromagnetic shield member covering the first coated electric wire, and a sheath covering the electromagnetic shield member,
   A second coated electric wire including a second core electric wire and a second insulating coating for coating the second core electric wire,
   A relay terminal that electrically connects the shielded electric wire and the second coated electric wire,
   An exterior member having an opening and covering the shielded electric wire, the second coated electric wire, and the relay terminal.
   It is provided with a waterproof member which has self-bonding property and is fixed to the exterior member while covering the opening of the exterior member.
   The first coated electric wire of the shielded electric wire has a first exposed portion exposed from the sheath and the electromagnetic shield member.
   The electromagnetic shield member of the shielded electric wire has a second exposed portion exposed from the sheath.
   The relay terminal electrically connects the second exposed portion and the second core electric wire.
   The second exposed portion and the relay terminal are housed in the exterior member.
   The waterproof member has a first region that covers the outer peripheral surface of the first exposed portion of the first coated electric wire without gaps, and a second region that covers the outer peripheral surface of the second coated electric wire without gaps.
   The first exposed portion and the second coated electric wire are wire harnesses that penetrate the first region and the second region of the waterproof member, respectively.
2. The waterproof member includes a self-bonding tape.
   The self-bonding tape has a first winding portion wound around the outer peripheral surface of the first exposed portion and a second winding portion wound around the outer peripheral surface of the second coated electric wire.
   The first region of the waterproof member includes the first winding portion.
   The wire harness according to claim 1, wherein the second region of the waterproof member includes the second winding portion.
3. The shielded electric wire is a plurality of electric wires.
   Each of the plurality of shielded electric wires has a plurality of the first exposed portions.
   The self-bonding tape has a plurality of the first winding portions by being wound around the outer peripheral surfaces of the plurality of first exposed portions.
   The plurality of first winding portions are the inner peripheral winding portion on the innermost peripheral side of the plurality of first winding portions and the outer peripheral side of the plurality of first winding portions on the outer peripheral side of the inner peripheral winding portion. Has an additional winding part,
   One of the plurality of first coated electric wires penetrates the inner peripheral winding portion.
   The wire harness according to claim 2, wherein the rest of the plurality of first coated electric wires individually penetrate the additional winding portion.
4. The shielded electric wire is a plurality of electric wires.
   The second coated electric wire is one,
   Each of the plurality of shielded electric wires has a plurality of the second exposed portions.
   The wire harness according to any one of claims 1 to 3, wherein the plurality of second exposed portions are electrically connected to the second core electric wire via the relay terminal.
5. A first adhesive tape that is wrapped around the waterproof member is provided.
   The wire harness according to any one of claims 1 to 4, wherein the first adhesive tape presses the waterproof member against the first exposed portion and the second coated electric wire.
6. A second adhesive tape that is wrapped around the waterproof member is provided.
   The waterproof member has an inward extending portion covered with the exterior member, and has an inward extending portion.
   The inward extending portion includes the first region and the second region.
   The wire harness according to any one of claims 1 to 5, wherein the second adhesive tape presses the inwardly extending portion against the first exposed portion and the second coated electric wire.
7. The waterproof member has an outer extending portion extending from the opening of the exterior member toward the outside of the exterior member, and an outer peripheral surface that is in close contact with the outer peripheral surface of the outer extending portion and the outer peripheral surface of the exterior member. It has a tubular portion and a lid portion that covers the opening of the exterior member.
   The outward extending portion includes the first region and the second region.
   The wire harness according to any one of claims 1 to 6, wherein the lid portion is formed by integrating the outer peripheral cylinder portion and the outward extending portion by self-fusion.

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