WO2023013324A1

WO2023013324A1 - Wire harness

Info

Publication number: WO2023013324A1
Application number: PCT/JP2022/026164
Authority: WO
Inventors: 直也濱本; 裕隆馬場; 武史清水; 雅保辻
Original assignee: 株式会社オートネットワーク技術研究所; 住友電装株式会社; 住友電気工業株式会社
Priority date: 2021-08-02
Filing date: 2022-06-30
Publication date: 2023-02-09
Also published as: JP2023021645A

Abstract

A wire harness (11) according to one embodiment of the present disclosure is equipped with: a first shield electric wire (12) which has a first core wire (12a) and a first braided member (12c); second shield electric wires (13, 14) which have second core wires (13a, 14a) and second braided members (13c, 14c); a crimped terminal (15) which connects the first core wire (12a) and the second core wires (13a, 14a) to one another; and an insulating part (16) which covers the outer periphery of the crimped terminal (15). The second braided members (13c, 14c) directly contact the insulating part (16) by covering the insulating part (16) while being directly connected to the first braided member (12c).

Description

wire harness

The present disclosure relates to wire harnesses.

Conventionally, some wire harnesses have connecting portions in which the core wires of a plurality of electric wires are connected to each other by crimp terminals or the like (see Patent Document 1, for example). In this wire harness, the connection portion is exposed from the insulating coating of the electric wire, but the connection portion is covered with a water stop material to prevent water from entering from the outside.

JP 2012-248527 A

By the way, a shielded wire may be adopted for the wires of the wire harness as described above. A shielded wire has a braided member that covers the outer periphery of a core wire, thereby suppressing radiation of electromagnetic waves. When the core wires of the shielded wires are connected to each other, it is conceivable to connect the braided members to each other via, for example, another member, thereby suppressing the radiation of electromagnetic waves from the vicinity of the connection portion. However, in such a case, there is a problem that a separate member is required to connect the braided members.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its object is to provide a wire harness capable of suppressing the radiation of electromagnetic waves from the vicinity of the connecting portion while suppressing an increase in the number of parts. It is in.

A wire harness according to the present disclosure includes a plurality of shielded wires having a core wire and a braided member covering the outer circumference of the core wire, a connecting portion where the plurality of core wires are connected to each other, and an insulating portion covering the outer circumference of the connecting portion. , wherein the braided member is directly connected to the braided member of the other shielded wire while covering the insulating portion and making direct contact with the insulating portion.

According to the wire harness of the present disclosure, it is possible to suppress the radiation of electromagnetic waves from the periphery of the connecting portion while suppressing an increase in the number of parts.

FIG. 1 is a partial schematic cross-sectional view of a wire harness according to one embodiment. FIG. 2 is a schematic diagram for explaining the manufacturing process of the wire harness in one embodiment. FIG. 3 is a schematic diagram for explaining the manufacturing process of the wire harness in one embodiment. FIG. 4 is a partial schematic cross-sectional view of a wire harness in another example. FIG. 5 is a partial schematic cross-sectional view of a wire harness in another example.

[Description of Embodiments of the Present Disclosure]
First, the embodiments of the present disclosure are listed and described.
The wire harness of the present disclosure includes:
[1] A wire comprising a plurality of shielded wires having a core wire and a braided member covering the outer circumference of the core wire, a connecting portion where the plurality of core wires are connected to each other, and an insulating portion covering the outer circumference of the connecting portion. In the harness, the braided member is directly connected to the braided member of the other shielded wire while covering the insulating portion and making direct contact with the insulating portion.

According to the same configuration, it is possible to secure the shielding performance of the connection part with the braided member alone while ensuring the insulation from the connection part by the insulating part. That is, it is possible to suppress the radiation of electromagnetic waves from the vicinity of the connecting portion while suppressing an increase in the number of parts.

[2] Preferably, the connecting portion has a crimp terminal provided at a portion where the core wires exposed from the braided members of the plurality of shielded wires are concentrated.

According to this configuration, although there is a risk that electromagnetic waves will be radiated around the crimp terminal due to the braided member being cut once, the shielding performance of that portion can be ensured with a simple configuration.
[3] The shielded wire has an outer insulating coating that covers the outer circumference of the braided member and an inner insulating coating that is interposed between the core wire and the braided member, and the plurality of shielded wires are connected The first braided member, which is the braided member of the first shielded wire, has a portion exposed from the outer insulating coating. The second braided member, which is the braided member of the second shielded wire, is folded so as to cover the outer circumference of the outer insulating coating of the first shielded wire, and the portion exposed from the outer insulating coating covers the insulating portion. It is preferable to be directly connected to the first braided member while being in direct contact with the insulating portion.

According to the same configuration, the first braided member is folded back when the core wire is exposed, and the second braided member is directly connected to the folded-back first braided member. There is no need to deform it again, and the assembling property is improved.

[4] It is preferable that the second braided member has a longer exposed length from the outer insulation coating than the first braided member.
According to this configuration, the second braided member needs to reach the first braided member folded back while covering the insulating portion, so it needs to be exposed for a long time, and the first braided member needs to be exposed for a long time. do not have. Therefore, waste of the first braided member can be suppressed as compared with, for example, the case where the first braided member and the second braided member are exposed for the same length.

[5] The first core wire, which is the core wire of the first shielded wire, and the second core wire, which is the core wire of the second shielded wire, have the same exposed length from the inner insulation coating. is preferred.

According to the same configuration, the first core wire and the second core wire can be connected in a well-balanced manner while suppressing waste of the core wire, compared to the case where the first core wire and the second core wire are exposed to different lengths.
[6] It is preferable that the number of the first shielded wires is one and the number of the second shielded wires is plural.

According to the same configuration, since the insulating portion is covered with the plurality of second braided members of the plurality of second shield wires, a large amount of braided member is required compared to the case where the insulating portion is covered with one braided member. It is possible to cover the insulating portion and further suppress the radiation of electromagnetic waves from the periphery of the connecting portion.

[7] It is preferable that the number of the first shielded wires is plural and the number of the second shielded wires is one.
According to the same configuration, the insulating portion is covered with one braided member of the single second shield wire. It can be well covered, and it is possible to suppress the radiation of electromagnetic waves from the periphery of the connection part in a well-balanced manner.

[8] an underlay ring in which all the braided members of all the shielded wires are arranged on the outer peripheral side; is preferably provided.

According to this configuration, all the braided members can be stably and easily connected by crimping without performing complicated welding work or the like using the underlay ring and the crimping ring.
[Details of the embodiment of the present disclosure]
A specific example of the wire harness of the present disclosure will be described below with reference to the drawings. In each drawing, part of the configuration may be exaggerated or simplified for convenience of explanation. Also, the dimensional ratio of each part may differ in each drawing. "Parallel", "perpendicular" and "perfect circle" in this specification are not limited to strictly parallel, orthogonal and perfect circular, but generally parallel, orthogonal and perfect circular within the range where the effects of this embodiment are exhibited. is also included. The present invention is not limited to these examples, but is indicated by the scope of the claims, and is intended to include all modifications within the scope and meaning equivalent to the scope of the claims.

(Configuration of wire harness 11)
As shown in FIG. 1, the wire harness 11 includes one first shielded wire 12 as a shielded wire and two second shielded

wires

13 and 14 as shielded wires. The first shielded wire 12 has a first core wire 12a as a core wire and an inner insulating coating 12b that covers the outer circumference of the first core wire 12a. The first shielded wire 12 has a first braided member 12c as a braided member covering the outer circumference of the inner insulating covering 12b, and an outer insulating covering 12d covering the outer circumference of the first braided member 12c. The second shielded

electric wires

13, 14 have

second core wires

13a, 14a as core wires and inner

insulating coatings

13b, 14b covering the outer circumferences of the

second core wires

13a, 14a. The

second shield wires

13, 14 are composed of second braided

members

13c, 14c as braided members covering the outer circumferences of the

inner insulating coatings

13b, 14b, outer insulating coverings 13d covering the outer circumferences of the second braided

members

13c, 14c, 14d.

The first braided member 12c and the second braided

members

13c and 14c are formed by, for example, tubularly braiding conductive strands of aluminum alloy or the like. The first braided member 12c and the second braided

members

13c, 14c suppress radiation of electromagnetic waves from the first core wire 12a and the

second core wires

13a, 14a.

At the ends of the first shielded wire 12 and the second shielded

wires

13, 14, the first core wire 12a and the

second core wires

13a, 14a are provided so as to be exposed to the outside. At the ends of the first shield wire 12 and the

second shield wires

13, 14, the first braided member 12c and the second braided

members

13c, 14c are provided so as to be exposed to the outside.

The ends of the first shielded wire 12 and the second shielded

wires

13, 14 are first stripped of the outer insulating coatings 12d to 14d, then the first braided member 12c and the

second braided members

13c, 14c are folded back, and then The inner insulating coatings 12b-14b are stripped. Thereby, the first braided member 12c and the

second braided members

13c, 14c are exposed, and the first core wire 12a and the

second core wires

13a, 14a are exposed. In this embodiment, the

second braided members

13c and 14c are exposed longer than the first braided member 12c. In other words, the exposed length of the

second braided members

13c and 14c from the outer insulation coatings 12d to 14d is longer than that of the first braided member 12c. In other words, the

second braided members

13c and 14c have a longer exposed length from the outer insulation coatings 12d to 14d than the first braided member 12c. Also, the first core wire 12a and the

second core wires

13a and 14a are exposed by the same length. In other words, the length exposed from the inner insulating coatings 12b to 14b is the same between the first core wire 12a and the

second core wires

13a and 14a. In other words, the first core wire 12a and the

second core wires

13a and 14a have the same exposed length from the respective inner insulating coatings 12b to 14b. The first braided member 12c and the

second braided members

13c, 14c exposed to the outside can be folded back, put together, or deformed, and are schematically shown in each figure.

FIG. 2 shows the first shielded wire 12 and the second shielded wire 12 in which the outer insulating coatings 12d to 14d and the inner insulating coatings 12b to 14b are sequentially peeled off, and further, the exposed ends of the

second core wires

13a and 14a are partly cut off. Shielded

wires

13, 14 are shown. In the present embodiment, the

second braided members

13c and 14c are exposed longer than the first braided member 12c, and the first core wire 12a and the

second core wires

13a and 14a are exposed by the same length. After the

core wires

13a and 14a are exposed, the tips are partially cut off.

The wire harness 11 also includes a crimp terminal 15 that constitutes a part of the connection portion, and an insulating portion 16 .
The crimp terminal 15 is made of, for example, a conductive metal plate. The crimp terminal 15 includes the first core wire 12a and the second core wire 13a exposed from the first braided member 12c and the

second braided member

13c, 14c of the first shielded wire 12 and the second shielded

wires

13, 14, respectively. 14a is provided at a concentrated portion. The crimp terminal 15 is crimped while enclosing the first core wire 12a and the

second core wires

13a, 14a together to connect the first core wire 12a and the

second core wires

13a, 14a. The wire harness 11 is for electrically connecting the battery and two electric devices, for example. The first shielded wire 12 and the second shielded

wires

13 and 14 are configured such that the first shielded wire 12 extends in one direction (leftward in FIG. 1) around the crimp terminal 15, and the first shielded wire 12 extends in the other direction (leftward in FIG. 1). Two

second shield wires

13 and 14 are provided so as to extend in the middle and right directions).

The outer periphery of the crimp terminal 15 is covered with the insulating portion 16 . The insulating portion 16 is configured to be arranged from the outside of the crimp terminal 15 . The insulating portion 16 of this embodiment is an insulating tape and is wound around the crimp terminal 15 . The insulating portion 16 is provided so as to entirely cover the first core wire 12a and the

second core wires

13a and 14a exposed from the inner insulating coatings 12b to 14b. Since the insulating portion 16 is an insulating tape having flexibility, it is not necessarily in a completely cylindrical state when wound around the crimp terminal 15. However, in FIG. showing.

The

second braided members

13c and 14c are directly connected to the first braided member 12c while covering the insulating portion 16 and being in direct contact with the insulating portion 16. Specifically, the first braided member 12c is folded back so that the portion exposed from the outer insulating coating 12d covers the outer periphery of the outer insulating coating 12d. The

second braided members

13c and 14c are directly connected to the first braided member 12c which is folded back while covering the insulating portion 16 at the portions exposed from the outer insulating

coatings

13d and 14d and in direct contact with the insulating portion 16. It is The

second braided members

13c and 14c are assembled with the crimp terminal 15 in a folded state as shown in FIG. 1 Braided member 12c is directly connected. Although FIG. 1 schematically shows the first braided member 12c and the

second braided members

13c, 14c, the

second braided members

13c, 14c cover the outer circumference of the insulating portion 16 as well as possible. Secondly, the

second braided members

13c and 14c are deformed and connected to the first braided member 12c so that each of the

second braided members

13c and 14c covers half or more than half of the outer periphery of the insulating portion 16, for example. is preferred. In a certain example, each of the

second braided members

13c and 14c may be loosened into a tubular shape so that each of the

second braided members

13c and 14c covers the entire outer periphery of the insulating portion 16 . The insulating portion 16 may be doubly covered by the lengthwise middle portion of the unraveled tube of the

second braided members

13c, 14c, and the lengthwise end portions of the unraveled tube of the

second braided members

13c, 14c. may be connected to the first braided member 12c.

Also, the wire harness 11 of this embodiment includes an underlay ring 17 and a crimping ring 18 . The underlay ring 17 and the caulking ring 18 are conductive metal rings made of, for example, an aluminum alloy. As shown in FIG. 2, the underlay ring 17 and the caulking ring 18 are arranged with the first shield wire 12 already passed therethrough when the first braided member 12c is folded back. As shown in FIG. 1, the underlay ring 17 has a first braided member 12c and

second braided members

13c and 14c arranged on the outer peripheral side. The caulking ring 18 and the underlay ring 17 are caulked and fixed so as to sandwich and connect the first braided member 12c and the

second braided members

13c and 14c.

Further, as shown in FIG. 1, the wire harness 11 includes a waterproof member 19 that covers the exposed first braided member 12c and the exposed second braided

members

13c and 14c. The waterproof member 19 of this embodiment is molded resin.

As shown in FIG. 3, in the waterproof member 19, the molten resin material is filled in the area surrounded by the molding die 20 disposed outside the exposed first braided member 12c and the second braided members 13c, 14c. and molded. Adhesive 21 is applied in advance to the outer insulating coatings 12d to 14d accommodated in the mold 20, and the outer insulating coatings 12d to 14d and the waterproof member 19 are adhered without gaps. Further, the molten resin material penetrates until it reaches the crimp terminal 15 arranged inside the insulating portion 16 and then hardens and covers the exposed first braided member 12c and the

second braided members

13c and 14c. Therefore, the crimp terminal 15, the first braided member 12c and the

second braided members

13c and 14c are prevented from being exposed to water.

Next, operation of the wire harness 11 configured as described above will be described.
The first shielded wire 12 and the second shielded

wires

13, 14 have a first braided member 12c and

second braided members

13c, 14c covering the outer circumferences of the first core wire 12a and the

second core wires

13a, 14a. Therefore, radiation of electromagnetic waves from the first shielded wire 12 and the second shielded

wires

13 and 14 is suppressed. In addition, since the crimp terminal 15, which is a connection portion to which the first core wire 12a and the

second core wires

13a and 14a are connected, is covered with the

second braided members

13c and 14c via the insulating portion 16, Emission of electromagnetic waves is suppressed.

Next, the effects of the above embodiment will be described below.
(1) The first braided member 12c and the

second braided members

13c and 14c alone can secure the shielding property of the crimp terminal 15 while ensuring the insulation from the crimp terminal 15 by the insulating portion 16 . That is, it is possible to suppress radiation of electromagnetic waves from around the crimp terminal 15 while suppressing an increase in the number of parts.

(2) Around the crimp terminal 15, the first braided member 12c and the

second braided members

13c, 14c may be once separated, and electromagnetic waves may be radiated. It can be secured with a simple structure.

(3) The first braided member 12c is folded back when the first core wire 12a is exposed, and the

second braided members

13c and 14c are directly connected to the folded first braided member 12c. Therefore, it is not necessary to deform the first braided member 12c again, and the assembling property is improved.

(4) The

second braided members

13c and 14c are exposed longer than the first braided member 12c. Since the

second braided members

13c and 14c need to reach the folded first braided member 12c while covering the insulating portion 16, they need to be exposed long, and the first braided member 12c needs to be exposed long. do not have. Therefore, for example, compared to the case where the first braided member 12c and the

second braided members

13c and 14c are exposed by the same length, waste of the first braided member 12c can be suppressed.

(5) The first core wire 12a and the

second core wires

13a and 14a are exposed by the same length. Therefore, compared to the case where the first core wire 12a and the

second core wires

13a and 14a are exposed by different lengths, the first core wire 12a and the second core wire 12a and the

second core wires

13a and 14a are prevented from being wasted while reducing waste. The

core wires

13a and 14a can be connected in good balance.

(6) The insulating portion 16 is covered with the two

second braided members

13c and 14c of the two

second shield wires

13 and 14. Therefore, compared with the case where the insulating portion 16 is covered with one first braided member 12c, the insulating portion 16 can be covered with a larger amount of braided members, and the radiation of electromagnetic waves from around the crimp terminal 15 can be further suppressed. .

(7) The first braided member 12c and the

second braided members

13c, 14c are stably and easily connected by the underlay ring 17 and the crimping ring 18 by crimping, for example, without performing complicated welding work. be able to.

This embodiment can be implemented with the following modifications. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
In the above embodiment, the two

second braided members

13c, 14c of the two

second shield wires

13, 14 are configured to cover the insulating portion 16, but the present invention is not limited to this, and one second shield The insulating portion 16 may be covered with one second braided member of the wire.

For example, it may be changed as shown in FIG. In this example, the wire harness 30 includes two first shielded

wires

31 and 32 as shielded wires and one second shielded wire 33 as a shielded wire.

The first shielded

electric wires

31, 32 have

first core wires

31a, 32a as core wires and inner insulating

coatings

31b, 32b that cover the outer circumferences of the

first core wires

31a, 32a. The

first shield wires

31 and 32 are composed of first braided

members

31c and 32c as braided members covering the outer peripheries of the inner insulating

coatings

31b and 32b, and outer insulating

coatings

31d and 31d covering the outer peripheries of the

first braided members

31c and 32c. 32d. The second shielded wire 33 has a second core wire 33a as a core wire and an inner insulating coating 33b covering the outer periphery of the second core wire 33a. The second shielded wire 33 has a second braided member 33c as a braided member covering the outer circumference of the inner insulating covering 33b, and an outer insulating covering 33d covering the outer circumference of the second braided member 33c.

The second braided member 33c is directly connected to the

first braided members

31c and 32c while covering the insulating portion 16 and making direct contact with the insulating portion 16 . Specifically, the

first braided members

31c and 32c are folded back so that the portions exposed from the

outer insulation coatings

31d and 32d cover the outer circumferences of the

outer insulation coatings

31d and 32d of the

first shield wires

31 and 32. It is The second braided member 33c is directly connected to the

first braided members

31c and 32c that are folded back while covering the insulating portion 16 at the portion exposed from the outer insulating coating 33d and in direct contact with the insulating portion 16. there is

The wire harness 30 includes an underlay ring 34 and a caulking ring 35. The underlay ring 34 and the crimp ring 35 of this example are larger in diameter than the underlay ring 17 and the crimp ring 18 of the above embodiment. The underlay ring 34 is a perfectly circular ring, and the two

first shield wires

31 and 32 are passed through the inner side thereof. The underlay ring 34 and the caulking ring 35 are arranged in a state in which the

first shield wires

31 and 32 are already passed through when the

first braided members

31c and 32c are folded back. The underlay ring 34 has the

first braided members

31c, 32c and the second braided member 33c arranged on the outer peripheral side. The caulking ring 35 and the underlay ring 34 are caulked and fixed so as to sandwich and connect the

first braided members

31c, 32c and the second braided member 33c.

In this example, the insulating portion 16 is covered with one second braided member 33c of one second shield wire 33. As shown in FIG. Therefore, compared to the case where the insulating portion 16 is covered with the two

first braided members

31c and 32c, the entire outer circumference of the insulating portion 16 can be covered in a well-balanced manner, and the radiation of electromagnetic waves from around the crimp terminal 15 can be suppressed in a well-balanced manner. It becomes possible. That is, since the second braided member 33c is originally formed in a cylindrical shape, when the insulating portion 16 is covered with one second braided member 33c, it can be arranged so as to surround the entire outer circumference of the insulating portion 16. can. Therefore, the entire outer periphery of the insulating portion 16 can be covered in a well-balanced manner, and the radiation of electromagnetic waves from around the crimp terminal 15 can be suppressed in a well-balanced manner. Although the wire harness 30 in this example includes the two first shielded

wires

31 and 32, it may be configured to include three or more first shielded wires.

- In the above-described embodiment, the waterproof member 19 is made of molded resin, but the present invention is not limited to this, and other configurations may be used.
For example, as shown in FIG. 5, the waterproof member 41 may be composed of a resin pipe 42 and rubber plugs 43 and 44 . The resin pipe 42 is formed in a tubular shape covering the first braided member 12c and the

second braided members

13c and 14c. One rubber plug 43 is provided so as to close the gap between the open end on one side of the resin pipe 42 and the outer periphery of the outer insulating coating 12d, and the other rubber plug 44 is provided to close the opening on the other side of the resin pipe 42. It is provided so as to close between the ends and the outer circumferences of the

outer insulation coatings

13d and 14d.

The wire harness 11 also includes

retainers

45 and 46 for preventing the rubber plugs 43 and 44 from slipping. The

retainers

45, 46 are fixed to the outer circumferences of the outer insulating coatings 12d to 14d adjacent to the rubber plugs 43, 44 to prevent the rubber plugs 43, 44 from slipping, that is, the rubber plugs 43, 44 from coming off the resin pipe 42. do.

This also prevents the crimp terminal 15, the first braided member 12c, and the

second braided members

13c and 14c from being exposed to water.
- In the above embodiment, the

second braided members

13c and 14c are exposed longer than the first braided member 12c. The braided

members

13c and 14c may be exposed by the same length.

- In the above-described embodiment, the first core wire 12a and the

second core wires

13a and 14a are exposed to the same length, but the invention is not limited to this, and the first core wire 12a and the

second core wires

13a and 14a Different lengths may be exposed.

- In the above-described embodiment, the insulating portion 16 is an insulating tape wound around the crimp terminal 15, but it is not limited to this, and may be changed to another insulating portion.
For example, the insulating portion 16 of the above-described embodiment may be changed to a cylindrical shrinkable tube. In addition, since the shrinkable tube formed in a cylindrical shape is not configured to be arranged from the outside of the crimp terminal 15, it is necessary, for example, to pass the first shielded wire 12 through the shrinkable tube in advance.

- In the above embodiment, the wire harness 11 includes two second shielded

wires

13 and 14, but may be configured to include three or more second shielded wires.
- In the above-described embodiment, the wire harness 11 includes the underlay ring 17 and the caulking ring 18 . For example, the first braided member 12c and the

second braided members

13c, 14c may be welded. Moreover, the first braided member 12c and the

second braided members

13c and 14c may be connected by a member other than the underlay ring 17 and the caulking ring 18. FIG. Also, the caulking ring 18 may be a C-shaped C-ring.

- In the above-described embodiment, the wire harness 11 includes the

waterproof members

19 and 41 that cover the first braided member 12c and the

second braided members

13c and 14c. It is also possible to adopt a configuration in which the Further, the

waterproof members

19 and 41 may have other structures having similar functions, such as shrinkable tubes.

- In the above-described embodiment, the connection portion to which the first core wire 12a and the

second core wires

13a and 14a are connected has the crimp terminal 15, but the connection portion is not limited to this, and for example, the core wire 12a 14a may be connected to each other by welding. In other words, the connecting portion may be configured to have a welded portion instead of the crimp terminal 15 .

In the above embodiment, the first braided member 12c is folded back so that the portion exposed from the outer insulating coating 12d covers the outer circumference of the outer insulating coating 12d. Instead, it may be configured such that the outer circumference of the outer insulating coating 12d is not covered. For example, like the

second braided members

13c and 14c, the first braided member 12c may be arranged to cover the insulating portion 16 and connected to the

second braided members

13c and 14c.

- In the embodiment of FIG. 1, the first shielded wire 12 may be referred to as a single wire or trunk, and the second shielded

wires

13, 14 may be referred to as a wire bundle or a plurality of branch wires. In the embodiment of FIG. 1, the core wire 12a of the first shielded wire 12 can have a first axial tip projecting in a first axial direction, which can be rightward, and the second shielded

wires

13, 14 Each of the

core wires

13a, 14a can have a second axial tip projecting in a second axial direction, which can be leftward, opposite the first axial direction. In the embodiment of FIG. 1, the connecting portion, which may be the crimp terminal 15, is the first end portion of the core wire 12a of the first shielded wire 12, which protrudes in the first axial direction, and the second axial direction. The protruding second end portions of the

core wires

13a, 14a of the second shielded

wires

13, 14 may be overlapped and connected substantially coaxially.

· As shown in FIG. 1 , the maximum outer diameter of the first shielded wire 12 may be smaller than the maximum outer diameter of the bundle of the second shielded

wires

13 and 14 . As shown in FIG. 1, the braided

members

13c, 14c of the shielded

wires

13, 14 are positioned above the relatively thin first shielded wire 12, i.e., radially outside the relatively thin first shielded wire 12. It may overlap with twelve braided members 12c. This overlapping position of the braided

members

12c, 13c, 14c of the shielded

wires

12, 13, 14 is advantageous for minimizing an increase in the maximum outer diameter of the wire harness 11. FIG. Similarly, providing the underlay ring 17 and the crimping ring 18 on the relatively thin first shielded wire 12 , that is, outside the relatively thin first shielded wire 12 in the radial direction reduces the maximum outer diameter of the wire harness 11 . Advantageous to minimize growth.

- In the embodiment of FIG. 4, the second shielded wire 33 may be referred to as a single wire or trunk, and the first shielded

wires

31, 32 may be referred to as a wire bundle or multiple branch wires. In the embodiment of FIG. 4, the core wire 33a of the second shielded wire 33 can have a first axial tip protruding in a first axial direction, which can be rightward, and the first shielded

wires

31, 32 Each of the

core wires

31a, 32a of can have a second axial tip projecting in a second axial direction, which can be leftward, opposite the first axial direction. In the embodiment of FIG. 4, the connecting portion, which may be the crimp terminal 15, includes the first end portion of the core wire 33a of the second shielded wire 33, which protrudes in the first axial direction, and the The protruding second end portions of the

core wires

31a, 32a of the first shielded

wires

31, 32 may be overlapped and connected substantially coaxially.

11 wire harness 12 first shielded wire (shielded wire)
12a First core wire (core wire)
12b Inner insulation coating 12c First braided member (braided member)
12d Outer insulation coating 13 Second shielded wire (shielded wire)
13a Second core wire (core wire)
13b Inner insulation coating 13c Second braided member (braided member)
13d Outer insulation coating 14 Second shielded wire (shielded wire)
14a second core wire (core wire)
14b Inner insulation coating 14c Second braided member (braided member)
14d Outer insulation coating 15 Crimp terminal (connection part)
16 insulating part 17 underlay ring 18 caulking ring 19 waterproof member 20 mold 21 adhesive 30 wire harness 31 first shielded wire (shielded wire)
31a First core wire (core wire)
31b Inner insulation coating 31c First braided member (braided member)
31d Outer insulation coating 32 First shielded wire (shielded wire)
32a First core wire (core wire)
32b Inner insulation coating 32c First braided member (braided member)
32d Outer insulation coating 33 Second shielded wire (shielded wire)
33a second core wire (core wire)
33b Inner insulation coating 33c Second braided member (braided member)
33d Outer insulation coating 34 Underlay ring 35 Crimping ring 41 Waterproof member 42 Resin pipe 43 Rubber plug 44 Rubber plug 45 Retainer 46 Retainer

Claims

a plurality of shielded wires each having a core wire and a braided member covering the outer periphery of the core wire;
a connecting portion where the plurality of core wires are connected to each other;
A wire harness comprising an insulating portion that covers the outer periphery of the connection portion,
A wire harness in which the braided member covers the insulating portion and is in direct contact with the insulating portion and is directly connected to the braided member of the other shielded wire.
The wire harness according to claim 1, wherein the connection portion has a crimp terminal provided at a portion where the core wires exposed from the braided members of the plurality of shielded wires are concentrated.
The shielded wire has an outer insulating coating that covers the outer periphery of the braided member and an inner insulating coating that is interposed between the core wire and the braided member,
The plurality of shielded wires has a first shielded wire and a second shielded wire extending in opposite directions from each other around the connecting portion,
The first braided member, which is the braided member of the first shielded wire, is folded back so that the portion exposed from the outer insulating coating covers the outer periphery of the outer insulating coating of the first shielded wire,
The second braided member, which is the braided member of the second shielded wire, is directly connected to the first braided member while the portion exposed from the outer insulating coating covers the insulating portion and is in direct contact with the insulating portion. The wire harness according to claim 1 or 2.
The wire harness according to claim 3, wherein the second braided member has a longer exposed length from the outer insulation coating than the first braided member.
3. The first core wire, which is the core wire of the first shielded wire, and the second core wire, which is the core wire of the second shielded wire, have the same exposed length from the inner insulating coating. The wire harness according to claim 4.
The wire harness according to any one of claims 3 to 5, wherein there is one first shielded wire and a plurality of second shielded wires.
The wire harness according to any one of claims 3 to 5, wherein the number of the first shielded electric wires is plural and the number of the second shielded electric wires is one.
an underlay ring in which all the braided members of all the shielded wires are arranged on the outer peripheral side;
a caulking ring that is caulked and fixed so as to sandwich and connect all of the braided members with the underlay ring;
The wire harness according to any one of claims 1 to 7, comprising: