Wire harness

Abstract

One aspect of the present disclosure provides a wire harness capable of improving the reliability of the electrical connection of a shield member. A wire harness (10) comprises a connection structure (10A) in which a first shielded electric wire and an electric wire group (20) are connected. The connection structure (10A) includes: a second exposed section (52) where a second individual shield member (12c) is exposed; and a third exposed section (53) where a third individual shield member (13c) is exposed. The connection structure (10A) includes a connection shield member (60) disposed so as to cover a connection part insulating coating. The connection structure (10A) includes a second holding member (72) that holds the connection shield member (60) in a state in which the connection shield member (60) is pressed against the second exposed section (52) and the third exposed section (53). The second holding member (72) includes protrusions (74) that enter between a second shielded electric wire (12) and a third shielded electric wire (13).

Description

Wire harness

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

[0002] As described in Patent Document 1, a wire harness including a first shielded wire, a second shielded wire, and a third shielded wire connected to the first shielded wire is known.

[0003] Japanese Patent Translation No. 2023-538729

[0004] In the wire harness as described above, a shield member is provided corresponding to a core wire connection portion where the core wires of the second shielded wire and the third shielded wire are each connected to the core wire of the first shielded wire. In order to improve the shielding performance of the shield members of each shielded wire and the shielding performance of the shield member provided corresponding to the core wire connection portion, it is necessary to electrically connect these shield members. A highly reliable configuration is required when collectively and electrically connecting the shield members of each of a plurality of shielded wires such as the second shielded wire and the third shielded wire and the shield member provided corresponding to the core wire connection portion.

[0005] An object of the present disclosure is to provide a wire harness capable of enhancing the reliability of electrical connection of shield members.

[0006] The wire harness of the present disclosure comprises a first shielded wire, a group of wires including a second shielded wire and a third shielded wire, and a connection structure to which the first shielded wire and the group of wires are connected, wherein each of the first, second, and third shielded wires comprises a core wire, an inner insulating coating covering the core wire, an individual shielding member covering the inner insulating coating, and an outer insulating coating covering the individual shielding member, wherein the connection structure comprises a core wire connection portion, a connection portion insulating coating covering the core wire connection portion, an exposed portion where each of the individual shielding members is exposed, a connection shielding member arranged to cover the connection portion insulating coating, a first holding member that holds the connection shielding member in a state pressed against the exposed portion of the first shielded wire, and a second holding member that holds the connection shielding member in a state pressed against the exposed portion of the second shielded wire and the exposed portion of the third shielded wire, wherein the second holding member has a protrusion that fits between the second shielded wire and the third shielded wire.

[0007] The wire harness of this disclosure has the effect of improving the reliability of the electrical connections of the shielding members.

[0008] Figure 1 is a plan view showing a wire harness of the first embodiment. Figure 2 is a cross-sectional view along line 2-2 in Figure 1. Figure 3 is a partial cross-sectional view along line 3-3 in Figure 1. Figure 4 is a cross-sectional view along line 4-4 in Figure 1. Figure 5 is a partial cross-sectional view along line 5-5 in Figure 1. Figure 6 is a plan view showing the process of assembling the wire harness. Figure 7 is a plan view showing the process of assembling the wire harness. Figure 8 is a plan view showing the process of assembling the wire harness. Figure 9 is a cross-sectional view showing a wire harness of the second embodiment. Figure 10 is a cross-sectional view showing a wire harness of the third embodiment. Figure 11 is a cross-sectional view showing a modified wire harness. Figure 12 is a cross-sectional view showing a modified wire harness.

[0009] [Description of Embodiments of the Disclosure] First, embodiments of the Disclosure will be listed and described. [1] The wire harness of the present disclosure comprises a first shielded wire, a group of wires including a second shielded wire and a third shielded wire, and a connection structure to which the first shielded wire and the group of wires are connected, wherein each of the first, second and third shielded wires comprises a core wire, an inner insulating cover covering the core wire, an individual shield member covering the inner insulating cover, and an outer insulating cover covering the individual shield member, wherein the connection structure comprises a core wire connection portion, a connection portion insulating cover covering the core wire connection portion, an exposed portion where each of the individual shield members is exposed, a connection shield member arranged to cover the connection portion insulating cover, a first holding member that holds the connection shield member in a state pressed against the exposed portion of the first shielded wire, and a second holding member that holds the connection shield member in a state pressed against the exposed portion of the second shielded wire and the exposed portion of the third shielded wire, wherein the second holding member has a protrusion that fits between the second shielded wire and the third shielded wire.

[0010] With this configuration, the protrusion of the second holding member reduces the gap between the second shield wire and the third shield wire. This prevents, for example, the exposed portions of the second and third shield wires from moving into the gap between them. In other words, by suppressing the displacement of the exposed portions of the second and third shield wires, the contact state between the exposed portions of the second and third shield wires and the connecting shield member becomes stable. Therefore, it is possible to improve the reliability of the electrical connection between the connecting shield member and the individual shield members.

[0011] [2] In the above [1], the connecting shield member that is in contact with the exposed portion of the second shield wire and the exposed portion of the third shield wire may be pushed between the second shield wire and the third shield wire by the protrusion. With this configuration, the adhesion between the exposed portions of the second shield wire and the third shield wire and the connecting shield member can be improved by utilizing the protrusion of the second holding member.

[0012] [3] In [1] or [2] above, the second retaining member is made of a metal plate having a retaining body and the protrusion, and the protrusion may be made of a bent portion of the metal plate. This configuration makes it possible to simplify the configuration of the second retaining member.

[0013] [4] In [1] or [2] above, the second retaining member comprises a retaining body member and a protruding portion component that constitutes the protrusion, and the protruding portion component may be arranged between the retaining body member and the second shield wire and the third shield wire. With this configuration, for example, a general-purpose material such as adhesive tape or cable tie can be used as the retaining body member, thereby reducing the cost of the wire harness, for example.

[0014] [5] In the above [4], the connecting shield member may be positioned between the holding body member and the protruding component member. With this configuration, deformation of the connecting shield member between the second shield wire and the third shield wire is suppressed, thereby reducing the stress on the connecting shield member, for example. Therefore, the connecting shield member can be adequately protected.

[0015] [6] In any one of [1] to [5] above, the protrusion may include a first protrusion and a second protrusion facing each other. With this configuration, the first and second protrusions of the second holding member can further reduce the gap between the second shield wire and the third shield wire. This makes it possible to further suppress, for example, the movement of the exposed portions of the second and third shield wires into the gap. That is, by further suppressing the displacement of the exposed portions of the second and third shield wires, the contact state between the exposed portions of the second and third shield wires and the connecting shield member becomes more stable.

[0016] [7] In any one of [1] to [6] above, the connection structure further comprises a support member positioned opposite the second holding member, wherein the support member supports the exposed portion of the second shield wire and the exposed portion of the third shield wire. With this configuration, the exposed portions of the second shield wire and the third shield wire are supported by the support member, making it easy to increase the force with which the second holding member presses the connecting shield member. This makes it possible to further improve the contact between the exposed portions of the second shield wire and the third shield wire and the connecting shield member.

[0017] [Details of Embodiments of the Disclosure] Specific examples of the wire harness of the Disclosure will be described below with reference to the drawings. In each drawing, some parts of the configuration may be exaggerated or simplified for the sake of explanation. Also, the dimensional ratios of each part may differ in each drawing. In this specification, "orthogonal" and "parallel" include not only cases where they are strictly orthogonal or parallel, but also cases where they are approximately orthogonal or parallel within the range that produces the effects of this embodiment. The term "cylindrical" as used in this description includes not only those in which a circumferential wall is formed continuously around the entire circumference, but also those formed by combining multiple parts to create a cylindrical shape, and those having notches in part of the circumferential direction, such as C-shapes or U-shapes. The shape of "cylindrical" includes, but is not limited to, circular, elliptical, and polygons with pointed or rounded corners. In addition, terms such as "first," "second," and "third" in this specification are used simply to distinguish objects and do not rank them. Each drawing shows the X, Y, and Z axes which are orthogonal to each other.

[0018] <First Embodiment> The first embodiment of the wire harness will be described below. (Overall configuration of the wire harness 10) As shown in Figure 1, the wire harness 10 comprises a first shielded wire 11 and a group of wires 20. The group of wires 20 includes a second shielded wire 12 and a third shielded wire 13. The wire harness 10 includes a connection structure 10A to which the first shielded wire 11 and the group of wires 20 are connected. The second shielded wire 12 and the third shielded wire 13 are arranged, for example, adjacent to each other.

[0019] As shown in Figure 6, the connection structure 10A includes a core wire connection portion 30, a connection portion insulating coating 40, and an exposed portion 50. As shown in Figure 1, the connection structure 10A includes a connection shield member 60. As shown in Figures 1, 3, and 5, the connection structure 10A includes a holding member 70 and a support member 80.

[0020] The first shield wire 11, the second shield wire 12, and the third shield wire 13 are arranged, for example, so as to extend in opposite directions from the core wire connection portion 30. The first shield wire 11, the second shield wire 12, and the third shield wire 13 extend, for example, along the X-axis of the drawing. In this case, the Y-axis and Z-axis of the drawing are perpendicular to the longitudinal directions of the first shield wire 11, the second shield wire 12, and the third shield wire 13. The second shield wire 12 and the third shield wire 13 may be arranged so as to extend in a direction intersecting the first shield wire 11. Alternatively, the second shield wire 12 and the third shield wire 13 may be arranged parallel to each other, or so as to extend in a direction intersecting each other. The second shield wire 12 and the third shield wire 13 may be arranged so as to increase in distance from the first shield wire 11.

[0021] The wire harness 10 is installed, for example, in a vehicle. The wire harness 10 electrically connects three or more in-vehicle devices. The wire harness 10 constitutes, for example, part of an electrical circuit, particularly a high-voltage circuit. Examples of vehicles include hybrid vehicles and electric vehicles.

[0022] (Configuration of the first shielded wire 11, the second shielded wire 12, and the third shielded wire 13) As shown in Figures 2 and 3, the first shielded wire 11 comprises a first core wire 11a and a first inner insulating sheath 11b covering the first core wire 11a. The first shielded wire 11 comprises a first individual shield member 11c covering the first inner insulating sheath 11b and a first outer insulating sheath 11d covering the first individual shield member 11c.

[0023] As shown in Figures 4 and 5, the second shielded wire 12 comprises a second core wire 12a and a second inner insulating sheath 12b covering the second core wire 12a. The second shielded wire 12 comprises a second individual shielding member 12c covering the second inner insulating sheath 12b and a second outer insulating sheath 12d covering the second individual shielding member 12c. The third shielded wire 13 comprises a third core wire 13a and a third inner insulating sheath 13b covering the third core wire 13a. The third shielded wire 13 comprises a third individual shielding member 13c covering the third inner insulating sheath 13b and a third outer insulating sheath 13d covering the third individual shielding member 13c. The cross-sectional shape of the first shielded wire 11, the second shielded wire 12, and the third shielded wire 13 is, for example, circular.

[0024] Examples of the first core wire 11a, the second core wire 12a, and the third core wire 13a include stranded wires made by twisting together multiple metal strands, and single-core wires made of a single conductor. Examples of single-core wires include columnar conductors with a solid internal structure and cylindrical conductors with a hollow internal structure. The core wires may be a combination of multiple types of core wires, such as stranded wires and single-core wires. As the material for the core wires, metal materials such as copper-based and aluminum-based materials can be used.

[0025] The first inner insulating coating 11b, the second inner insulating coating 12b, and the third inner insulating coating 13b each cover the outer circumference of the first core wire 11a, the second core wire 12a, and the third core wire 13a, respectively, around the entire circumference of the axis. The first inner insulating coating 11b, the second inner insulating coating 12b, and the third inner insulating coating 13b can be made of, for example, an insulating resin material.

[0026] The first individual shielding member 11c, the second individual shielding member 12c, and the third individual shielding member 13c shield electromagnetic waves radiated from the first core wire 11a, the second core wire 12a, and the third core wire 13a, respectively. The material of the first individual shielding member 11c, the second individual shielding member 12c, and the third individual shielding member 13c includes, for example, a conductive material such as a copper alloy or an aluminum alloy. The first individual shielding member 11c, the second individual shielding member 12c, and the third individual shielding member 13c may be, for example, a braided member in which strands are woven into a tubular shape, or a foil member. The drawing schematically shows the case where the first individual shielding member 11c, the second individual shielding member 12c, and the third individual shielding member 13c are braided members.

[0027] The first outer insulating coating 11d, the second outer insulating coating 12d, and the third outer insulating coating 13d each cover the outer circumference of the first individual shielding member 11c, the second individual shielding member 12c, and the third individual shielding member 13c, respectively, around the entire circumference of the axis. The first outer insulating coating 11d, the second outer insulating coating 12d, and the third outer insulating coating 13d can be made of, for example, an insulating resin material.

[0028] As shown in Figure 4, the wire group 20 has a first recess 20a and a second recess 20b that are recessed toward the space between the second shield wire 12 and the third shield wire 13. The first recess 20a and the second recess 20b open toward opposite sides. The inner surfaces of the first recess 20a and the second recess 20b are composed of the outer surface of the second outer insulating coating 12d and the outer surface of the third outer insulating coating 13d. The first recess 20a and the second recess 20b may or may not be in communication. That is, the second outer insulating coating 12d of the second shield wire 12 and the third outer insulating coating 13d of the third shield wire 13 may be spaced apart or in contact.

[0029] (Configuration of the core wire connection part 30 and the connection part insulating coating 40 in the connection structure 10A) The core wire connection part 30 electrically connects the first core wire 11a of the first shield wire 11, the second core wire 12a of the second shield wire 12, and the third core wire 13a of the third shield wire 13. More specifically, the end of the first shield wire 11 has a connection part in which the first core wire 11a is exposed. The end of the second shield wire 12 has a connection part in which the second core wire 12a is exposed. The end of the third shield wire 13 has a connection part in which the third core wire 13a is exposed. The core wire connection part 30 is constructed by electrically connecting each of the connection parts of the first core wire 11a, the second core wire 12a, and the third core wire 13a, for example, by welding, crimping, etc. The core wire connection part 30 has, for example, a splice connection structure.

[0030] The connection part insulating cover 40 is positioned to cover the core wire connection part 30. The connection part insulating cover 40 can be made of, for example, an insulating resin material. The connection part insulating cover 40 can be made using, for example, heat shrink tubing, insulating tape, etc.

[0031] (Configuration of the exposed portion 50 in the connection structure 10A) As shown in Figures 2 and 3, the first shielded wire 11 has a first exposed portion 51 in which the first individual shield member 11c is exposed to the outside. As shown in Figures 4 and 5, the second shielded wire 12 has a second exposed portion 52 in which the second individual shield member 12c is exposed to the outside. The third shielded wire 13 has a third exposed portion 53 in which the third individual shield member 13c is exposed to the outside.

[0032] The first exposed portion 51 is folded back so as to overlap the outer surface of the first outer insulating coating 11d of the first shielded wire 11. The second exposed portion 52 is folded back so as to overlap the outer surface of the second outer insulating coating 12d of the second shielded wire 12. The third exposed portion 53 is folded back so as to overlap the outer surface of the third outer insulating coating 13d of the third shielded wire 13.

[0033] (Configuration of the connection shield member 60 in the connection structure 10A) As shown in Figure 1, the connection shield member 60 is arranged to cover the connection part insulating coating 40. The connection shield member 60 shields electromagnetic waves radiated from the core wire connection part 30. The connection shield member 60 electrically connects the first individual shield member 11c, the second individual shield member 12c, and the third individual shield member 13c. The material of the connection shield member 60 may be a conductive material such as a copper alloy or an aluminum alloy. The connection shield member 60 may be a braided member in which strands made of a conductive material are woven into a cylindrical shape, or it may be a foil member made of a conductive material. The drawing schematically shows a braided member which is the connection shield member 60.

[0034] The connecting shield member 60 has a connecting shield body portion 61a that covers the core wire connection portion 30 and a first shield connection portion 61b that is electrically connected to the first individual shield member 11c. The connecting shield member 60 has a second shield connection portion 61c that is electrically connected to the second individual shield member 12c and a third shield connection portion 61d that is electrically connected to the third individual shield member 13c.

[0035] (Configuration of the holding member 70 and support member 80 in the connection structure 10A) As shown in Figures 1 to 5, the holding member 70 includes a first holding member 71 and a second holding member 72. The first holding member 71 holds the first shield connection portion 61b of the connecting shield member 60 in a state where it is pressed against the first exposed portion 51. The second holding member 72 holds the second shield connection portion 61c of the connecting shield member 60 in a state where it is pressed against the second exposed portion 52. The second holding member 72 also holds the third shield connection portion 61d of the connecting shield member 60 in a state where it is pressed against the third exposed portion 53.

[0036] Examples of the first retaining member 71 include adhesive tape, cable ties, clamps, etc. Examples of the material of the first retaining member 71 include metal materials, resin materials, etc. The first retaining member 71 may be conductive or electrically insulating. From the viewpoint of increasing the holding force of the first retaining member 71, it is preferable that the material of the first retaining member 71 be a metal material. For example, a metal cable tie can be used as the first retaining member 71.

[0037] As shown in Figure 4, the second retaining member 72 comprises a retaining body portion 73 and a protrusion 74 that fits between the second shield wire 12 and the third shield wire 13. The retaining body portion 73 and the protrusion 74 are made of metal plates. The second retaining member 72 is electrically conductive.

[0038] The retaining body portion 73 is provided so as to cover the outer circumference of the second exposed portion 52 and the third exposed portion 53. The protrusion 74 is made of a bent portion of a metal plate. The protrusion 74 includes a first protrusion 74A and a second protrusion 74B that face each other. The first protrusion 74A is positioned to fit into the first recess 20a. The second protrusion 74B is positioned to fit into the second recess 20b. The first protrusion 74A and the second protrusion 74B have a shape that extends along the space between the second shielded wire 12 and the third shielded wire 13.

[0039] The connecting shield member 60 is in contact with, for example, the protrusion 74. The connecting shield member 60, which is in contact with the second exposed portion 52 and the third exposed portion 53, is pushed between the second shield wire 12 and the third shield wire 13 by, for example, the protrusion 74.

[0040] As shown in Figures 2 to 5, the support member 80 includes a first support member 81, a second support member 82, and a third support member 83. As shown in Figures 2 and 3, the first support member 81 is positioned opposite the first holding member 71. The first support member 81 supports the first exposed portion 51 of the first shielded wire 11. The first support member 81 is positioned between the first exposed portion 51 and the first outer insulating coating 11d.

[0041] The first support member 81 has, for example, a shape surrounding the outer periphery of the first outer insulating coating 11d. The first support member 81 is, for example, a ring member surrounding the outer periphery of the first outer insulating coating 11d.

[0042] As shown in FIGS. 4 and 5, the second support member 82 is arranged to face the second holding member 72. The second support member 82 supports the second exposed portion 52 of the second shielded wire 12. The second support member 82 is arranged between the second exposed portion 52 and the second outer insulating coating 12d. The second support member 82 has, for example, a shape surrounding the outer periphery of the second outer insulating coating 12d. The second support member 82 is, for example, a ring member surrounding the outer periphery of the second outer insulating coating 12d.

[0043] The third support member 83 is arranged to face the second holding member 72. The third support member 83 is arranged between the third exposed portion 53 and the third outer insulating coating 13d. The third support member 83 has, for example, a shape surrounding the outer periphery of the third outer insulating coating 13d. The third support member 83 is, for example, a ring member surrounding the outer periphery of the third outer insulating coating 13d.

[0044] Examples of the material of the support member 80 include a metal material, a resin material, etc. The support member 80 may have conductivity or may have electrical insulation. When the support member 80 has conductivity, a conductive path using the support member 80 can be secured. When the material of the support member 80 is a metal material, the supporting force of the support member 80 can be easily increased.

[0045] (Manufacturing method of the wire harness 10) Next, the manufacturing method of the wire harness 10 will be described. The following manufacturing method is an example, and for example, the order of mounting each member can be changed as appropriate.

[0046] In the process shown in FIG. 6, a core wire connection portion 30 is formed by electrically connecting the first core wire 11a, the second core wire 12a, and the third core wire 13a. Next, a connection portion insulating coating 40 is provided so as to cover the core wire connection portion 30. In this process, the second support member 82 is disposed on the outer periphery of the second outer insulating coating 12d. Also, the third support member 83 is disposed on the outer periphery of the third outer insulating coating 13d. In this process, although not shown, the first support member 81 is disposed on the outer periphery of the first outer insulating coating 11d.

[0047] In the process shown in FIG. 7, the second exposed portion 52 of the second shielded wire 12 is folded back along the outer periphery of the second support member 82. In this process, the third exposed portion 53 of the third shielded wire 13 is folded back along the outer periphery of the third support member 83. In this process, although not shown, the first exposed portion 51 of the first shielded wire 11 is folded back along the outer periphery of the first support member 81.

[0048] In the process shown in FIG. 8, a connection shield member 60 is disposed so as to cover the connection portion insulating coating 40. In this process, the connection shield member 60 is disposed so as to overlap the first exposed portion 51, the second exposed portion 52, and the third exposed portion 53.

[0049] In the next process, a second holding member 72 is attached to the outer periphery of the connection shield member 60. Thereby, the connection shield member 60 can be held in a state of being pressed against the second exposed portion 52 and the third exposed portion 53.

[0050] For the attachment of the second holding member 72, for example, caulking, welding, or the like can be used. The convex portion 74 of the second holding member 72 can be provided by plastically deforming a metal plate that becomes the second holding member 72 toward the space between the second shielded wire 12 and the third shielded wire 13 after attaching the metal plate to the outer periphery of the connection shield member​​In this step, although not shown in the diagram, the first retaining member 71 is attached to the outer circumference of the connecting shield member 60. This allows the connecting shield member 60 to be held in a state where it is pressed against the first exposed portion 51.

[0052] Although not shown in the diagram, a protective member can be provided on the outer circumference of the connecting shield member 60 as needed to protect the connecting shield member 60. The protective member is provided so as to surround the connecting shield member 60. The protective member has properties such as waterproofing and electrical insulation. Examples of protective members include heat-shrinkable tubing, tape material, and molded resin.

[0053] (Operation and Effects of this Embodiment) The operation and effects of this embodiment will now be described. (1-1) The wire harness 10 comprises a first shielded wire 11, a group of wires 20, and a connection structure 10A to which the first shielded wire 11 and the group of wires 20 are connected. The group of wires 20 includes a second shielded wire 12 and a third shielded wire 13. The first shielded wire 11 comprises a first core wire 11a, a first inner insulating coating 11b covering the first core wire 11a, a first individual shielding member 11c covering the first inner insulating coating 11b, and a first outer insulating coating 11d covering the first individual shielding member 11c. The second shielded wire 12 and the third shielded wire 13 each also have a laminated structure similar to that of the first shielded wire 11. The connection structure 10A of the wire harness 10 includes a core wire connection portion 30, a connection portion insulating cover 40 covering the core wire connection portion 30, and exposed portions 50 of a first exposed portion 51, a second exposed portion 52, and a third exposed portion 53. The connection structure 10A of the wire harness 10 includes a connection shield member 60 positioned to cover the connection portion insulating cover 40. The connection structure 10A of the wire harness 10 includes a first holding member 71 that holds the connection shield member 60 in a state pressed against the first exposed portion 51. The connection structure 10A of the wire harness 10 includes a second holding member 72 that holds the connection shield member 60 in a state pressed against the second exposed portion 52 and the third exposed portion 53, respectively. The second holding member 72 includes a protrusion 74 that fits between the second shield wire 12 and the third shield wire 13.

[0054] With this configuration, the protrusion 74 of the second holding member 72 reduces the gap between the second shield wire 12 and the third shield wire 13. This prevents, for example, the second exposed portion 52 and the third exposed portion 53 from moving into the gap between the second shield wire 12 and the third shield wire 13. In other words, by suppressing the displacement of the second exposed portion 52 and the third exposed portion 53, the contact state between the second exposed portion 52 and the third exposed portion 53 and the connecting shield member 60 is stabilized. Therefore, it is possible to improve the reliability of the electrical connection between the connecting shield member 60 and the second individual shield member 12c and the third individual shield member 13c.

[0055] (1-2) The connecting shield member 60 that is in contact with the second exposed portion 52 and the third exposed portion 53 is pressed between the second shield wire 12 and the third shield wire 13 by the protrusion 74 of the second holding member 72. In this case, the adhesion between the second exposed portion 52 and the third exposed portion 53 and the connecting shield member 60 can be improved by utilizing the protrusion 74 of the second holding member 72. This makes it possible to further suppress misalignment of the second exposed portion 52 and the third exposed portion 53 by utilizing the connecting shield member 60.

[0056] (1-3) The second retaining member 72 is made of a metal plate having a retaining body portion 73 and a protrusion portion 74. The protrusion portion 74 is made of a bent portion of the metal plate. In this case, it is possible to simplify the structure of the second retaining member 72.

[0057] (1-4) The protrusion 74 of the second retaining member 72 includes a first protrusion 74A and a second protrusion 74B that face each other. In this case, the first protrusion 74A and the second protrusion 74B of the second retaining member 72 can further reduce the gap between the second shield wire 12 and the third shield wire 13. This makes it possible to further suppress, for example, the movement of the second exposed portion 52 and the third exposed portion 53 into the gap. That is, by further suppressing the displacement of the second exposed portion 52 and the third exposed portion 53, the contact state between the second exposed portion 52 and the third exposed portion 53 and the connecting shield member 60 becomes more stable. Accordingly, it is possible to further improve the reliability of the electrical connection between the connecting shield member 60 and the second individual shield member 12c and the third individual shield member 13c.

[0058] (1-5) The connection structure 10A includes a second support member 82 and a third support member 83, which are positioned opposite the second holding member 72. The second support member 82 supports the second exposed portion 52. The third support member 83 supports the third exposed portion 53.

[0059] In this case, since the second exposed portion 52 and the third exposed portion 53 are supported by the second support member 82 and the third support member 83, respectively, the force with which the second holding member 72 presses against the connecting shield member 60 can be easily increased. This makes it possible to further improve the contact between the second exposed portion 52 and the third exposed portion 53 and the connecting shield member 60. Consequently, the reliability of the electrical connection between the connecting shield member 60 and the second individual shield member 12c and the third individual shield member 13c can be further improved.

[0060] <Second Embodiment> A second embodiment of the wire harness 10 will be described below. In the second embodiment, the same reference numerals are used for the same or corresponding components as in the first embodiment, and some or all of the description of those components may be omitted.

[0061] (Configuration of connection structure 10A) As shown in Figure 9, the configuration of the second holding member 72 of the connection structure 10A of the wire harness 10 in this embodiment differs from that of the first embodiment. The second holding member 72 comprises a holding body member 75, a first protrusion component member 76 that constitutes the first protrusion 74A, and a second protrusion component member 77 that constitutes the second protrusion 74B.

[0062] Examples of the retaining body member 75 include adhesive tape, cable ties, clamps, etc. Examples of the material of the retaining body member 75 include metal materials, resin materials, etc. The retaining body member 75 may be conductive or electrically insulating. From the viewpoint of increasing the holding force of the retaining body member 75, it is preferable that the material of the retaining body member 75 be a metal material. For example, a metal cable tie can be used as the retaining body member 75.

[0063] The first protrusion component 76 and the second protrusion component 77 are positioned between the holding body member 75 and the second shield wire 12 and the third shield wire 13. More specifically, the first protrusion component 76 and the second protrusion component 77 are positioned between the holding body member 75 and the connecting shield member 60. The connecting shield member 60, which is in contact with the second exposed portion 52 and the third exposed portion 53, is pressed between the second shield wire 12 and the third shield wire 13 by the first protrusion component 76 and the second protrusion component 77. The connecting shield member 60 and the second exposed portion 52 are positioned, for example, between the first protrusion component 76 and the second protrusion component 77 and the second support member 82. The connecting shield member 60 and the third exposed portion 53 are positioned, for example, between the first protrusion component 76 and the second protrusion component 77 and the third support member 83.

[0064] Examples of materials for the first protrusion component 76 and the second protrusion component 77 include metal materials and resin materials. The first protrusion component 76 and the second protrusion component 77 may be electrically conductive or electrically insulating.

[0065] (Operation and Effects of this Embodiment) The operation and effects of this embodiment will now be described. (2-1) The second retaining member 72 comprises a retaining main body member 75, a first protrusion component member 76, and a second protrusion component member 77. In this case, for example, a general-purpose material such as adhesive tape or a cable tie can be used as the retaining main body member 75. This makes it possible to reduce the cost of the wire harness 10, for example. Also, for example, by making the retaining main body member 75, the first protrusion component member 76, and the second protrusion component member 77 from different materials, the degree of design freedom can be increased.

[0066] (2-2) The wire harness 10 of the second embodiment can also obtain the same effects as (1-1), (1-2), (1-4), and (1-5) of the first embodiment. <Third Embodiment> The third embodiment of the wire harness 10 will be described below. In the third embodiment, the same reference numerals are used for the same configuration as in the second embodiment, or for corresponding configurations, and some or all of the description of the configuration may be omitted.

[0067] As shown in Figure 10, the connection structure 10A of the wire harness 10 in this embodiment differs from the second embodiment in the arrangement of the connection shield member 60 with respect to the second holding member 72. The connection shield member 60 is positioned between the holding body member 75 and the first protrusion component 76 and the second protrusion component 77. The first protrusion 74A of the first protrusion component 76 and the second protrusion 74B of the second protrusion component 77 are positioned to push the second exposed portion 52 and the third exposed portion 53 between the second shielded wire 12 and the third shielded wire 13. The second exposed portion 52 is, for example, sandwiched between the first protrusion component 76 and the second protrusion component 77 and the second support member 82. The third exposed portion 53 is, for example, sandwiched between the first protrusion component 76 and the second protrusion component 77 and the third support member 83.

[0068] (Operation and Effects of this Embodiment) The operation and effects of this embodiment will now be described. (3-1) The connecting shield member 60 is positioned between the holding body member 75 and the first protrusion component 76 and the second protrusion component 77. In this case, deformation of the connecting shield member 60 that enters between the second shield wire 12 and the third shield wire 13 is suppressed, which reduces the stress on the connecting shield member 60, for example. Therefore, the connecting shield member 60 can be adequately protected.

[0069] (3-2) The wire harness 10 of the third embodiment can also obtain the same effects as (1-1), (1-4), and (1-5) of the first embodiment. (Modification examples) The above embodiments can be implemented with the following modifications. The above embodiments and the following modifications can be combined with each other to the extent that they do not contradict each other technically.

[0070] In the third embodiment shown in Figure 10, the first protrusion component 76 and the second protrusion component 77 of the second holding member 72 can be constructed as a single integrated part rather than separate parts. For example, in the modified example shown in Figure 11, an integrated protrusion component 78 is used to form the first protrusion 74A and the second protrusion 74B. In this case, for example, it becomes possible to reduce the number of parts.

[0071] In the second embodiment shown in Figure 9, the retaining body member 75 and the first protrusion component 76 can be constructed as a single integrated part rather than separate parts. Also, for example, the retaining body member 75 and the second protrusion component 77 can be constructed as a single integrated part rather than separate parts.

[0072] For example, the retaining body member 75 and the first protruding portion component 76 can be integrated by bonding with an adhesive, welding, or the like. Alternatively, for example, the retaining body member 75 and the first protruding portion component 76 can be formed from a single molded product.

[0073] As shown in Figure 12, the wire group 20 of the wire harness 10 may include a fourth shield wire 14 in addition to the second shield wire 12 and the third shield wire 13. The fourth shield wire 14 also has a fourth core wire 14a, a fourth inner insulating coating 14b, a fourth individual shield member 14c, and a fourth outer insulating coating 14d, similar to the third shield wire 13. The fourth individual shield member 14c has a fourth exposed portion 54. The connecting shield member 60 has a fourth shield connection portion 61e that is electrically connected to the fourth individual shield member 14c. In this wire group 20, the outer circumferences of the third shield wire 13 and the fourth shield wire 14 have a first recess 20a and a second recess 20b that are recessed toward the space between the third shield wire 13 and the fourth shield wire 14. The second holding member 72 preferably has a protrusion 74 that fits between the third shield wire 13 and the fourth shield wire 14. In this case, the reliability of the electrical connection between the connecting shield member 60 and the third individual shield member 13c and the fourth individual shield member 14c can be improved. The connection structure 10A of the wire harness 10 may also include a fourth support member 84 that supports the fourth exposed portion 54.

[0074] - The wire harness 10 may have four or more shielded wires in its wire group 20. - The first support member 81 may be omitted. The second support member 82 may be omitted. The third support member 83 may be omitted.

[0075] - Either the first protrusion 74A or the second protrusion 74B of the second holding member 72 may be omitted. - The number of first support members 81 may be one or more. For example, multiple first support members 81 may be provided along the length of the first shield wire 11. The number of second support members 82 and third support members 83 may also be one or more.

[0076] In the first and second embodiments, the connecting shield member 60 is pressed between the second shield wire 12 and the third shield wire 13 by the protrusion 74 of the second holding member 72, but is not limited to this. The connecting shield member 60 may be positioned so as not to contact the protrusion 74 of the second holding member 72.

[0077] - The second exposed portion 52 and the third exposed portion 53 may be positioned so as not to contact the protrusion 74 of the second holding member 72. - The second exposed portion 52 is folded back so as to overlap the outer circumferential surface of the second outer insulating coating 12d of the second shield wire 12. The third exposed portion 53 is also folded back so as to overlap the outer circumferential surface of the third outer insulating coating 13d of the third shield wire 13. This configuration can be changed as follows: The second exposed portion 52 and the third exposed portion 53 may be arranged without being folded back, extending along the second inner insulating coating 12b and the third inner insulating coating 13b, respectively. In this case, the second support member 82 is positioned between the second inner insulating coating 12b and the second exposed portion 52. The third support member 83 is positioned between the third inner insulating coating 13b and the third exposed portion 53. Furthermore, the protrusion 74 of the second retaining member 72 fits between the second inner insulating coating 12b and the third inner insulating coating 13b.

[0078] - The first exposed portion 51 is folded back so as to overlap the outer circumferential surface of the first outer insulating coating 11d of the first shielded wire 11, but it may also be arranged to extend along the first inner insulating coating 11b without being folded back. In this case, the first support member 81 is arranged between the first inner insulating coating 11b of the first shielded wire 11 and the first exposed portion 51.

[0079] The embodiments and modifications described above are illustrative in all respects, and the present invention is not limited to these examples. That is, the scope of the present invention is indicated by the claims, and all modifications within the meaning and scope equivalent to the claims are intended to be included.

[0080] 10 Wire harness 10A Connection structure 11 First shield wire 11a First core wire 11b First inner insulation covering 11c First individual shield member 11d First outer insulation covering 12 Second shield wire 12a Second core wire 12b Second inner insulation covering 12c Second individual shield member 12d Second outer insulation covering 13 Third shield wire 13a Third core wire 13b Third inner insulation covering 13c Third individual shield member 13d Third outer insulation covering 14 Fourth shield wire 14a Fourth core wire 14b Fourth inner insulation covering 14c Fourth individual shield member 14d Fourth outer insulation covering 20 Wire group 20a First recess 20b Second recess 30 Core wire connection part 40 Connection part insulation covering 50 Exposed part 52 First exposed part 52 Second exposed part 53 Third exposed portion 54 Fourth exposed portion 60 Connecting shield member 61a Connecting shield main body portion 61b First shield connection portion 61c Second shield connection portion 61d Third shield connection portion 61e Fourth shield connection portion 70 Holding member 71 First holding member 72 Second holding member 73 Holding main body portion 74 Protrusion 74A First protrusion 74B Second protrusion 75 Holding main body member 76 First protrusion component 77 Second protrusion component 78 Integrated protrusion component 80 Support member 81 First support member 82 Second support member 83 First restricting portion 84 Second restricting portion

Claims

1. A wire harness comprising: a first shielded wire; a group of wires including a second shielded wire and a third shielded wire; and a connection structure connecting the first shielded wire and the group of wires, wherein each of the first, second, and third shielded wires comprises: a core wire; an inner insulating coating covering the core wire; an individual shielding member covering the inner insulating coating; and an outer insulating coating covering the individual shielding member, wherein the connection structure comprises: a core wire connection portion; a connection portion insulating coating covering the core wire connection portion; an exposed portion where each of the individual shielding members is exposed; a connecting shielding member positioned to cover the connection portion insulating coating; a first holding member that holds the connecting shielding member in a state pressed against the exposed portion of the first shielded wire; and a second holding member that holds the connecting shielding member in a state pressed against the exposed portion of the second shielded wire and the exposed portion of the third shielded wire, wherein the second holding member has a protrusion that fits between the second shielded wire and the third shielded wire.

2. The wire harness according to claim 1, wherein the connecting shield member that is in contact with the exposed portion of the second shield wire and the exposed portion of the third shield wire is pushed between the second shield wire and the third shield wire by the protrusion.

3. The wire harness according to claim 1, wherein the second retaining member is composed of a metal plate having a retaining body portion and the protrusion portion, and the protrusion portion is composed of a bent portion of the metal plate.

4. The wire harness according to claim 1, wherein the second retaining member comprises a retaining body member and a protruding portion component member that constitutes the protrusion, and the protruding portion component member is disposed between the retaining body member and the second shielded wire and the third shielded wire.

5. The wire harness according to claim 4, wherein the connecting shield member is disposed between the holding body member and the protruding component member.

6. The wire harness according to claim 1, wherein the protrusions include a first protrusion and a second protrusion facing each other.

7. The wire harness according to claim 1, wherein the connection structure further comprises a support member arranged to face the second holding member, and the support member supports the exposed portion of the second shielded wire and the exposed portion of the third shielded wire.

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