Wire harness

Abstract

The invention provides a wire harness capable of suppressing electromagnetic wave radiation from the periphery of a connection part by ensuring a good connection state of an electromagnetic shielding member. A wire harness according to one aspect of the present invention is provided with: a plurality of shielded electric wires (13, 14) having core wires (13a, 14a) and electromagnetic shielding members (13c, 14c) covering the outer peripheries of the core wires; a connection part connecting the core wires to each other; a resin case (21) that covers the outer periphery of the connection part; a shield connection member (31) that covers the outer periphery of the resin case and connects the plurality of electromagnetic shield members; and a binding band (33) that binds the plurality of shielded wires and binds and connects the electromagnetic shielding members and the shield connection members of the plurality of shielded wires, the resin case having a spacer portion (24) that is interposed between the plurality of shielded wires on the inside of the binding band, thereby suppressing deformation of the plurality of shielded wires.

Description

Technical Field

[0001] The present invention relates to a wiring harness. Background Art

[0002] Conventionally, a wiring harness includes a connector that connects the core wires of multiple electric wires (see, for example, Patent Document 1). In this wiring harness, the connector is exposed from the insulation covering of each electric wire, but the exposed portion, including the connector, is covered with a waterproof material to prevent water from entering from the outside. Prior art literature Patent Literature

[0003] Patent Document 1: Japanese Patent Application Laid-Open No. 2012-248527 Summary of the Invention Problems to be solved by the invention

[0004] However, shielded wires are sometimes used in the wire harnesses described above. Shielded wires, which contain an electromagnetic shielding member such as a braided wire covering the outer circumference of the core wire via an insulating sheath, can suppress electromagnetic wave radiation. However, even with shielded wires, the periphery of the connection is exposed from the electromagnetic shielding member, potentially radiating electromagnetic waves from the connection area. While direct connection of the electromagnetic shielding members outside the connection is a possible solution, achieving a satisfactory connection while fully covering the connection is difficult.

[0005] An object of the present invention is to provide a wire harness capable of suppressing electromagnetic wave radiation from the vicinity of a connection portion by ensuring a good connection state of an electromagnetic shielding member. Solutions to Problems

[0006] The wiring harness of the present invention comprises: a plurality of shielded electric wires having a core wire and an electromagnetic shielding member covering the outer circumference of the core wire; a connecting portion connecting the core wires to each other; a resin shell covering the outer circumference of the connecting portion; a shielding connecting member covering the outer circumference of the resin shell and connecting the plurality of electromagnetic shielding members; and a binding band bundling the plurality of shielded electric wires and bundling and connecting the electromagnetic shielding members and the shielding connecting member of the respective plurality of shielded electric wires together, the resin shell having a spacer, and the spacer suppressing deformation of the plurality of shielded electric wires by being interposed between the plurality of shielded electric wires on the inner side of the binding band. Effects of the Invention

[0007] According to the wire harness of the present invention, by ensuring a good connection state of the electromagnetic shielding member, it is possible to suppress electromagnetic wave radiation from the periphery of the connection portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1It is a cross-sectional view of the wire harness in the first embodiment. Figure 2 It is a partially enlarged cross-sectional view of the wire harness in the first embodiment. Figure 3 It is a partially enlarged cross-sectional view of the wire harness in the first embodiment. Figure 4 This is an exploded perspective view of a portion of the wire harness in the first embodiment. Figure 5 It is an exploded perspective view of the resin case in the first embodiment. Figure 6 This is a perspective view of a portion of the wire harness in the first embodiment. Figure 7 This is a cross-sectional view of a portion of the wire harness in the first embodiment. Figure 8 It is a cross-sectional view of a wire harness in the second embodiment. Figure 9 It is a partially enlarged cross-sectional view of the wire harness in the second embodiment. Figure 10 It is a partially enlarged cross-sectional view of the wire harness in the second embodiment. Figure 11 This is an exploded perspective view of a portion of the wire harness in the second embodiment. Figure 12 It is an exploded perspective view of the resin case in the second embodiment. Figure 13 This is a perspective view of a portion of the wire harness in the second embodiment. Figure 14 This is a cross-sectional view of a portion of the wire harness in the second embodiment. Figure 15 This is a cross-sectional view of a wiring harness in another example. Figure 16 This is a partially enlarged cross-sectional view of another example of a wiring harness. DETAILED DESCRIPTION

[0009] [Description of Embodiments of the Invention] First, embodiments of the present invention will be described below. Wiring harness of the present invention [1] It comprises: a plurality of shielded electric wires having a core wire and an electromagnetic shielding member covering the outer periphery of the core wire; a connecting portion connecting the core wires to each other; a resin shell covering the outer periphery of the connecting portion; a shield connecting member covering the outer periphery of the resin shell and connecting the plurality of electromagnetic shielding members; and a binding band for bundling the plurality of shielded electric wires and bundling and connecting the electromagnetic shielding members and the shield connecting member of the respective shielded electric wires together, wherein the resin shell has a spacer, and the spacer is interposed between the plurality of shielded electric wires on the inner side of the binding band, thereby suppressing deformation of the plurality of shielded electric wires.

[0010] According to this structure, by covering the shield connecting member, electromagnetic wave radiation from around the connection portion can be suppressed. Furthermore, since multiple electromagnetic shielding members are collectively connected to the shield connecting member via a binding band, the number of components can be reduced compared to a structure in which multiple electromagnetic shielding members are individually connected to the shield connecting member using, for example, multiple binding bands. Furthermore, the multiple shielded wires bundled with the binding band are suppressed from deformation by the spacers interposed between the shielded wires, thereby ensuring a good connection between the multiple electromagnetic shielding members and the shield connecting member. For example, in a structure without spacers, deformation, such as bending of the shielded wires toward each other during bundling with the binding band, could reduce the surface pressure between the electromagnetic shielding members and the shield connecting member, potentially leading to unstable connection. In contrast, since the spacers suppress deformation of the multiple shielded wires, the multiple electromagnetic shielding members and the shield connecting member can be well connected. Furthermore, since the spacers are provided within the resin housing, the number of components can be reduced compared to a structure in which the spacers are provided separately from the resin housing.

[0011] [2] In the above-mentioned [1], the spacer may include an arc portion along the outer circumference of the shielded electric wire. According to this configuration, since the spacer has the arc portion along the outer circumference of the shielded electric wire, it is possible to effectively suppress the shielded electric wire from being deformed so as to be crushed.

[0012] [3] In the above [1] or [2], the shielded electric wire may have an outer insulating covering portion covering the outer periphery of the electromagnetic shielding component, the electromagnetic shielding component may have a folded-back portion, the folded-back portion is arranged in a manner of folding back from the inside to the outside of the outer insulating covering portion to cover the outer periphery of the outer insulating covering portion, and the binding belt may bundle the folded-back portion and the shielding connecting member together.

[0013] According to this structure, the folded-back portion of the electromagnetic shielding member, which is arranged to cover the outer periphery of the outer insulating covering, is bound together with the shield connecting member 1 by the binding tape. Therefore, compared to, for example, a case where the electromagnetic shielding member is not folded back to cover the outer periphery of the outer insulating covering, the electromagnetic shielding member can be brought into contact with the shield connecting member over a wider area.

[0014] [4] In the above [3], a gasket may be provided, and the gasket may be arranged between the outer insulating cover and the folded portion. According to this configuration, the folded-back portion and the shield connection member can be stably sandwiched by the grommet and the binding band, thereby achieving good connection.

[0015] [5] In the above [3], the folded portion may be bound by the binding band in a state of being in contact with the outer peripheral surface of the outer insulating cover. According to this structure, the number of components can be reduced compared to a structure in which a backing ring is provided inside the folded portion, for example.

[0016] [6] In any one of the above [1] to [5], the resin housing may have a band limiting portion that can engage with the binding band to limit the displacement of the binding band along the longitudinal direction of the shielded electric wire.

[0017] According to this configuration, the band restricting portion restricts displacement of the binding band along the longitudinal direction of the shielded electric wire, and thus the connection state between the plurality of electromagnetic shielding members and the shield connecting member can be stably maintained.

[0018] [7] In any one of [1] to [6] above, the resin case includes a first split case and a second split case assembled so as to sandwich the connection portion.

[0019] According to this configuration, the outer periphery of the connection portion can be easily covered by the first split housing and the second split housing. [8] In the above [7], the first split shell and the second split shell may have the same shape.

[0020] According to this structure, the mold for manufacturing the first split housing and the second split housing becomes the same, so the manufacturing becomes easy. In addition, the management of the components of the first split housing and the second split housing becomes easy.

[0021] [9] In the above [7] or [8], the first split shell and the second split shell may have mutually locking portions on both sides in the width direction of the direction in which the plurality of shielded electric wires bundled with the bundling band are arranged.

[0022] According to this configuration, both sides of the resin case in the width direction can be locked in a well-balanced manner by the locking portion.

[10] In any one of [7] to [9] above, the first split housing and the second split housing may have intermediate locking portions that lock with each other between the plurality of shielded electric wires bundled by the bundling band.

[0023] According to this configuration, the intermediate locking portion allows effective use of the space between the plurality of shielded electric wires bundled with the bundling band.

[11] In any one of the above [1] to

[10] , the plurality of shielded wires may include a first shielded wire and a second shielded wire extending in opposite directions with the connection portion as a base point, and at least one of the first shielded wire and the second shielded wire is provided in plurality, and the one is bundled with the bundling tape.

[0024] According to this configuration, when bundling a plurality of shielded electric wires, it is possible to satisfactorily connect a plurality of electromagnetic shield members and shield connecting members while reducing the number of components.

[12] In any one of the above [1] to

[11] , a waterproof member may be provided, which covers the resin case, the electromagnetic shielding member, the shield connection member and the binding band together.

[0025] According to this structure, it is possible to prevent the connection portion, the electromagnetic shielding member, and the shield connection member from being immersed in water.

[13] In any one of the above [1] to

[11] , a connection portion waterproof member may be provided, wherein the connection portion waterproof member covers the connection portion in the resin housing, and the shield connection member and the binding band are exposed.

[0026] According to this structure, the connection portion waterproof member can prevent the connection portion from being flooded. In addition, compared with a structure including a waterproof member that covers the shield connection member, etc., for example, miniaturization can be achieved.

[0027] [Details of Embodiments of the Invention] (First embodiment) Specific examples of the wiring harness of the present invention are described below with reference to the accompanying drawings. In each of the drawings, for the sake of convenience, a part of the structure is sometimes enlarged or simplified. In addition, the size ratios of each part are sometimes different in each of the drawings. "Parallel", "orthogonal" and "perfect circle" in this specification include not only the cases of being strictly parallel, orthogonal and perfect circle, but also the cases of being roughly parallel, orthogonal and perfect circle within the scope of the effects of the present embodiment. In addition, the present invention is not limited to these examples, but is shown in the claims, and is intended to include all variations within the meaning and scope equivalent to the claims.

[0028] (Structure of the wiring harness 11) like Figure 1 As shown, the wire harness 11 includes a first shielded wire 12 as a shielded wire, two first shielded wires 13 and 14 as shielded wires, and a grommet 15 (see FIG. Figure 2 and Figure 3 ). In addition, the wire harness 11 includes a resin housing 21, a shield connection member 31, and a clamping ring 32 (see Figure 2 ), as the binding tightening ring 33 of the binding belt (refer to Figure 3 ), and waterproof component 34.

[0029] (Structure of the First Shielded Electric Wire 12, the Second Shielded Electric Wires 13 and 14, and the Grommet 15) like Figure 2 As shown, the first shielded electric wire 12 includes a first core wire 12a serving as a core wire and an inner insulating coating 12b covering the outer periphery of the first core wire 12a. The first core wire 12a has a circular cross-sectional shape. Furthermore, the first shielded electric wire 12 includes a first electromagnetic shield member 12c serving as an electromagnetic shield member covering the outer periphery of the inner insulating coating 12b, and an outer insulating coating 12d covering the outer periphery of the first electromagnetic shield member 12c.

[0030] like Figure 3 As shown, the second shielded electric wires 13 and 14 have second core wires 13a and 14a as core wires and inner insulating coatings 13b and 14b covering the outer peripheries of the second core wires 13a and 14a. The second core wires 13a and 14a have a circular cross-sectional shape. Furthermore, the second shielded electric wires 13 and 14 have second electromagnetic shield members 13c and 14c as electromagnetic shield members covering the outer peripheries of the inner insulating coatings 13b and 14b, and outer insulating coatings 13d and 14d covering the outer peripheries of the second electromagnetic shield members 13c and 14c.

[0031] The first electromagnetic shielding member 12c and the second electromagnetic shielding members 13c and 14c suppress electromagnetic wave radiation from the first core wire 12a and the second core wires 13a and 14a. In this embodiment, the first electromagnetic shielding member 12c and the second electromagnetic shielding member 13c and 14c are braided wires made of conductive wires such as aluminum alloy, for example, braided into a cylindrical shape. The figures schematically illustrate the shape and appearance of the braided wires in the first electromagnetic shielding member 12c and the second electromagnetic shielding member 13c and 14c, as appropriate.

[0032] At the ends of the first shielded wire 12 and the second shielded wires 13 and 14, the first core wire 12a and the second core wire 13a and 14a are disposed so as to be exposed to the outside. Furthermore, at the ends of the first shielded wire 12 and the second shielded wire 13 and 14, the first electromagnetic shielding member 12c and the second electromagnetic shielding member 13c and 14c are disposed so as to be exposed to the outside. The first electromagnetic shielding member 12c and the second electromagnetic shielding member 13c and 14c have folded-back portions 12e, 13e, and 14e, which are folded back from the inside of the outer insulating covering 12d, 13d, and 14d to the outside, thereby covering the outer circumference of the outer insulating covering 12d, 13d, and 14d. For example, the first electromagnetic shielding member 12c and the second electromagnetic shielding members 13c and 14c include folded-back portions 12e, 13e, and 14e formed by folding back portions of the outer insulating covering portions 12d, 13d, and 14d that are exposed to the outside.

[0033] First, the outer insulating coatings 12d, 13d, and 14d of the first and second shielded wires 12, 13, and 14 are stripped from their ends. Next, the first and second electromagnetic shielding members 12c, 13c, and 14c are folded back at the ends of the first and second shielded wires 12, 13, and 14, and the inner insulating coatings 12b, 13b, and 14b are stripped. This exposes the first and second electromagnetic shielding members 12c, 13c, and 14c, and forms folded-back portions 12e, 13e, and 14e, further exposing the first and second core wires 12a, 13a, and 14a.

[0034] The gasket 15 is made of metal and has a cylindrical shape. It is positioned between the outer insulating coverings 12d, 13d, and 14d and the folded-back portions 12e, 13e, and 14e. Specifically, the gasket 15 is positioned around the outer circumferences of the outer insulating coverings 12d, 13d, and 14d when the first and second electromagnetic shielding members 12c, 13c, and 14c are folded back.

[0035] Furthermore, the first core wire 12a and the second core wires 13a and 14a are connected to form a connection portion 16. In this embodiment, the first core wire 12a and the second core wires 13a and 14a are directly welded. The first shielded wire 12 and the second shielded wires 13 and 14 extend in opposite directions with the connection portion 16 as a base point. Specifically, the first shielded wire 12 and the second shielded wires 13 and 14 extend in one direction (at Figure 1 The two first shielded wires 13 and 14 extend in the other direction (in the left direction). Figure 1 The wiring harness 11 electrically connects, for example, a battery connected to the first core wire 12a and electrical equipment connected to the second core wires 13a and 14a.

[0036] (Structure of Resin Case 21) In addition, if Figure 4 As shown, the resin case 21 is formed into a flat box shape that can cover the outer periphery of the connecting portion 16. The resin case 21 is composed of a first split case 22 and a second split case 23 that are assembled so as to sandwich the connecting portion 16. As the material of the resin case 21, that is, the first split case 22 and the second split case 23, a synthetic resin such as polypropylene, polyamide, or polyoxymethylene can be used. The first split case 22 and the second split case 23 have the same shape and size. For example, the first split case 22 and the second split case 23 can be interchangeable and / or can be managed with the same part management number.

[0037] like Figure 4 and Figure 5 As shown, the first split housing 22 and the second split housing 23 have semicircular openings 22a, 22b, 22c, 23a, 23b, and 23c in the shape of a semicircular arc. These openings 22a, 22b, 22c, 23a, 23b, and 23c are positioned to sandwich the exposed inner insulating coverings 12b, 13b, and 14b, respectively. Furthermore, the first split housing 22 and the second split housing 23 have mutually engaging locking portions 22d, 22e, 23d, and 23e on both sides of the width direction, which is the direction in which the second shielded electrical wires 13 and 14 are arranged. In the first split housing 22, one locking portion 22d is a male locking portion, and the other locking portion 22e is a female locking portion. In the second split housing 23, one locking portion 23d is a male locking portion, and the other locking portion 23e is a female locking portion. The first and second split shells 22 and 23 are locked to each other by the male locking portion of the first split shell 22 fitting into the female locking portion of the second split shell 23 and the male locking portion of the second split shell 23 fitting into the female locking portion of the first split shell 22 .

[0038] (Structure of Shield Connecting Member 31, Clamping Ring 32, and Bundling Clamping Ring 33) like Figure 6As shown, the shield connecting member 31 suppresses electromagnetic wave radiation from the resin case 21. The shield connecting member 31 covers the outer periphery of the resin case 21 and connects the first electromagnetic shielding member 12c and the second electromagnetic shielding members 13c and 14c. The shield connecting member 31 has flexibility. The shield connecting member 31 of this embodiment is, for example, a braided wire made of conductive wire such as aluminum alloy braided into a cylindrical shape. In addition, the shape, appearance, etc. of the braided wire in the shield connecting member 31 are schematically illustrated as appropriate in the figures. The shield connecting member 31 is arranged so as to continuously cover the range from the folded portion 12e of the first electromagnetic shielding member 12c to the folded portions 13e and 14e of the second electromagnetic shielding members 13c and 14c.

[0039] like Figure 2 As shown, the clamping ring 32 is made of metal and has a cylindrical shape. It connects the folded portion 12e of the first electromagnetic shielding member 12c and the shield connecting member 31. Specifically, the clamping ring 32 clamps from the outer periphery, thereby connecting the folded portion 12e of the first electromagnetic shielding member 12c and the shield connecting member 31 by tightening them from the outer periphery. The folded portion 12e and the shield connecting member 31 are sandwiched and connected by the backing ring 15 and the clamping ring 32.

[0040] like Figure 3 and Figure 7 As shown, the bundling tightening ring 33 is made of metal and is formed into a cylindrical shape. The bundling tightening ring 33 connects the folded portions 13e, 14e of the second electromagnetic shielding members 13c, 14c and the shield connecting member 31. In detail, the bundling tightening ring 33 tightens from the outer periphery, thereby bundling the folded portions 13e, 14e of the two second electromagnetic shielding members 13c, 14c and the shield connecting member 31 together and connecting them. In addition, when the bundling tightening ring 33 is assembled, when viewed from the longitudinal direction of the second shielding wires 13, 14 (see FIG. 1 ), the bundling tightening ring 33 is connected to the shield connecting member 31. Figure 7 ), having a pair of semicircular arc portions 33a provided on both sides in the width direction of the resin housing 21 and a pair of connecting portions 33b connecting the ends of the semicircular arc portions 33a to each other.

[0041] (Structure of Waterproof Member 34) like Figure 1As shown, the waterproof member 34 covers the resin case 21, the folded portions 12e, 13e, and 14e of the first and second electromagnetic shielding members 12c and 13c, 14c, the shield connecting member 31, the clamping ring 32, and the binding clamping ring 33. The waterproof member 34 of this embodiment is a non-conductive molded resin. The waterproof member 34 of this embodiment is molded by filling a molten resin material within an area surrounded by a mold (not shown) disposed outside the shield connecting member 31. Furthermore, in this embodiment, the molten resin material solidifies after entering the connection portion 16 disposed within the interior of the resin case 21. For example, the waterproof member 34 of this embodiment is also disposed within the interior of the resin case 21.

[0042] (Detailed Structure of Part of Resin Case 21) like Figure 3 and Figure 7 As shown, the resin case 21 has a spacer 24. The spacer 24 is interposed between the two first shielded electric wires 13 and 14 inside the binding clamping ring 33, thereby suppressing deformation of the second shielded electric wires 13 and 14.

[0043] In detail, Figure 7 As shown, the partition 24 is composed of a first divided partition 22 f provided in the first divided case 22 and a second divided partition 23 f provided in the second divided case 23 .

[0044] The spacer 24 includes an arc portion 24a that extends along the outer periphery of the second shielded electrical wires 13 and 14. Specifically, the arc portion 24a is formed in an arc shape that extends along the outer periphery of the folded portions 13e and 14e. When viewed in the longitudinal direction of the second shielded electrical wires 13 and 14, the arc portions 24a are formed as a pair, substantially completely filling the space between the opposing folded portions 13e and 14e.

[0045] like Figure 6 and Figure 7 As shown, the resin housing 21 includes a band restricting portion 24b that engages with the binding clamping ring 33 to restrict the displacement of the binding clamping ring 33 along the length of the second shielded wires 13 and 14. The band restricting portion 24b protrudes from the spacer 24. A pair of band restricting portions 24b are provided along the length of the second shielded wires 13 and 14. By placing the binding clamping ring 33 between the pair, the band restricting portions 24b restrict the displacement of the binding clamping ring 33 along the length of the second shielded wires 13 and 14. Furthermore, the band restricting portions 24b are provided on each of the first split housing 22 and the second split housing 23. For example, the band restricting portions 24b are provided on both the front and back surfaces of the resin housing 21.

[0046] Next, the operation of the wire harness 11 configured as described above will be described. Because the first shielded electric wire 12 includes the first electromagnetic shield member 12c covering the outer periphery of the first core wire 12a via the inner insulating coating 12b, electromagnetic wave radiation from the first shielded electric wire 12 is suppressed. Furthermore, because the second shielded electric wires 13 and 14 include the second electromagnetic shield members 13c and 14c covering the outer peripheries of the second core wires 13a and 14a via the inner insulating coatings 13b and 14b, electromagnetic wave radiation from the second shielded electric wires 13 and 14 is suppressed. Furthermore, because the connection portion 16 is covered by the shield coupling member 31 connected to the first electromagnetic shield member 12c and the second electromagnetic shield members 13c and 14c via the resin case 21, electromagnetic wave radiation from the vicinity of the connection portion 16 is suppressed.

[0047] Next, the effects of the above-mentioned first embodiment will be described below. (1) The two second electromagnetic shielding members 13c and 14c are connected to the shield connecting member 31 via a binding clamping ring 33. Therefore, the number of components can be reduced compared to a structure in which the two second electromagnetic shielding members 13c and 14c are individually connected to the shield connecting member 31 using multiple clamping rings. Furthermore, the two first shielded electric wires 13 and 14, bundled together by the binding clamping ring 33, are suppressed from deformation by the spacer 24 interposed between the two first shielded electric wires 13 and 14. Therefore, the two second electromagnetic shielding members 13c and 14c and the shield connecting member 31 can be well connected. For example, in a structure without the spacer 24, deformation such as bending the two first shielded electric wires 13 and 14 toward each other could reduce the surface pressure between the second electromagnetic shielding members 13c and 14c and the shield connecting member 31, potentially making the connection unstable. In contrast, since the spacer 24 suppresses deformation of the two first shielded electric wires 13 and 14, the two second electromagnetic shield members 13c and 14c and the shield connecting member 31 can be well connected. In addition, since the spacer 24 is provided in the resin case 21, the number of parts can be reduced compared to, for example, a case where the spacer 24 is provided separately from the resin case 21.

[0048] (2) Since the spacer 24 has the arc portion 24 a along the outer circumference of the second shielded electric wires 13 and 14 , it is possible to effectively suppress the second shielded electric wires 13 and 14 from being deformed so as to be crushed.

[0049] (3) The folded-back portions 13e and 14e of the second electromagnetic shielding members 13c and 14c, which are arranged to cover the outer peripheries of the outer insulating covering portions 13d and 14d, are bundled together with the shield coupling member 31 by the bundling tightening ring 33. Therefore, compared to, for example, a case where the second electromagnetic shielding members 13c and 14c are not folded back to cover the outer peripheries of the outer insulating covering portions 13d and 14d, the second electromagnetic shielding members 13c and 14c can be brought into contact with the shield coupling member 31 over a wider area.

[0050] (4) The grommets 15 are provided between the outer insulating coverings 13d, 14d and the folded portions 13e, 14e. Therefore, the grommets 15 and the binding clamping ring 33 can stably sandwich the folded portions 13e, 14e and the shield connection member 31 and connect them well.

[0051] (5) The resin housing 21 includes a band restricting portion 24b that engages with the binding clamping ring 33 to restrict the displacement of the binding clamping ring 33 along the longitudinal direction of the second shielded electric wires 13 and 14. Therefore, the band restricting portion 24b restricts the displacement of the binding clamping ring 33 along the longitudinal direction of the second shielded electric wires 13 and 14, thereby stably maintaining the connection between the two second electromagnetic shielding members 13c and 14c and the shield connecting member 31.

[0052] (6) The resin case 21 includes the first split case 22 and the second split case 23 assembled so as to sandwich the connection portion 16. Therefore, the outer periphery of the connection portion 16 can be easily covered by the first split case 22 and the second split case 23.

[0053] (7) The first split housing 22 and the second split housing 23 have the same shape and size. Therefore, the mold used to manufacture the first split housing 22 and the second split housing 23 is the same, making manufacturing easier. Furthermore, component management of the first split housing 22 and the second split housing 23 is easier.

[0054] (8) The first split housing 22 and the second split housing 23 have mutually locking portions 22d, 22e, 23d, and 23e on both sides of the width direction, which is the direction in which the two second shielded electric wires 13 and 14 are arranged. Therefore, the locking portions 22d, 22e, 23d, and 23e can lock both sides of the width direction of the resin housing 21 in a well-balanced manner.

[0055] (9) The present invention can be applied to a wiring harness 11 including a first shielded electric wire 12 and second shielded electric wires 13 and 14 extending in opposite directions with a connection portion 16 as a base point. In this embodiment, on the side where the two first shielded electric wires 13 and 14 are arranged, the two second electromagnetic shielding members 13c and 14c and the shield connecting member 31 can be connected well while reducing the number of components.

[0056] (10) The waterproof member 34 can prevent the resin case 21, the folded portions 12e, 13e, 14e, the shield connection member 31, the clamping ring 32, and the binding clamping ring 33 from being immersed in water.

[0057] (Second embodiment) The wire harness 41 of the second embodiment has a partially different configuration from the wire harness 11 of the first embodiment, and therefore the same components are denoted by the same reference numerals and detailed description thereof is omitted.

[0058] (Structure of the wiring harness 11) like Figures 8 to 10 As shown, the wire harness 41 includes one first shielded electric wire 12, two first shielded electric wires 13 and 14, and a grommet 15 (see FIG. Figure 9 and Figure 10 ) and the connecting terminal 42. In addition, the wire harness 11 includes a resin housing 51, a shield connection member 31, a clamping ring 32 (see Figure 9 ), as the binding tightening ring 33 of the binding belt (refer to Figure 10 ), and waterproof component 34.

[0059] In this embodiment, the first core wire 12a and the second core wires 13a and 14a are connected via a connection terminal 42. In this embodiment, the connection terminal 42 and the first core wire 12a and the second core wires 13a and 14a connected to the connection terminal 42 constitute a connection portion 43. The first shielded electric wire 12 and the second shielded electric wires 13 and 14 extend in opposite directions with the connection portion 43 as a base point.

[0060] (Structure of Resin Case 51) In addition, if Figure 11 As shown, the resin case 51 is formed into a flat box shape that can cover the outer periphery of the connecting portion 43. The resin case 51 is composed of a first split case 52 and a second split case 53 assembled so as to sandwich the connecting portion 43. As the material of the resin case 51, that is, the first split case 52 and the second split case 53, for example, a synthetic resin such as polypropylene, polyamide, or polyoxymethylene can be used.

[0061] like Figure 11 and Figure 12As shown, the first split housing 52 and the second split housing 53 have semicircular openings 52a, 52b, 52c, 53a, 53b, and 53c in the shape of a semicircular arc. These openings 52a, 52b, 52c, 53a, 53b, and 53c are positioned to sandwich the exposed inner insulating coverings 12b, 13b, and 14b, respectively. Furthermore, the first split housing 22 and the second split housing 23 have through-holes 52d and 53d between the two second shielded wires 13 and 14. The inner walls of these through-holes 52d and 53d have intermediate locking portions 52e and 53e that engage with each other. The intermediate locking portion 52e of the first split housing 22 is a female locking portion. The intermediate locking portion 53e of the second split housing 23 is a male locking portion. The first split housing 52 has a positioning recess 52f on a portion of its surface facing the second split housing 53. The second split housing 53 has a positioning projection 53f on a portion of its surface facing the first split housing 52. The first split housing 22 and the second split housing 23 are locked to each other by the positioning projection 53f fitting into the positioning recess 52f and engaging with the intermediate locking portions 52e and 53e.

[0062] like Figure 10 and Figure 14 As shown, the resin case 51 has a spacer 54. The spacer 54 is interposed between the two first shielded electric wires 13 and 14 inside the binding clamping ring 33, thereby suppressing deformation of the second shielded electric wires 13 and 14.

[0063] In detail, Figure 12 As shown, the partition 54 is composed of a first divided partition 52 g provided in the first divided case 52 and a second divided partition 53 g provided in the second divided case 53 .

[0064] like Figure 14 As shown, the spacer 54 includes an arc portion 54a that extends along the outer circumference of the second shielded electrical wires 13 and 14. Specifically, the arc portion 54a is formed in an arc shape that extends along the outer circumference of the folded portions 13e and 14e. The arc portions 54a are formed as a pair, substantially completely filling the space between the opposing folded portions 13e and 14e as viewed in the longitudinal direction of the second shielded electrical wires 13 and 14.

[0065] In addition, if Figure 13 and Figure 14As shown, the resin case 51 includes a band restricting portion 54b that engages with the binding clamping ring 33 to restrict the band restricting ring 33 from shifting along the length of the second shielded wires 13 and 14. The band restricting portion 54b protrudes from the spacer 54. A pair of band restricting portions 54b are provided along the length of the second shielded wires 13 and 14. By placing the binding clamping ring 33 between the pair, the band restricting portions 54b restrict the band restricting ring 33 from shifting along the length of the second shielded wires 13 and 14. Furthermore, the band restricting portions 54b are provided on each of the first split case 52 and the second split case 53. For example, the band restricting portions 54b may be provided on both the front and back surfaces of the resin case 51.

[0066] Next, the effects of the second embodiment described above will be described below. The wire harness 41 of the second embodiment can obtain the same effects as the effects (1) to (6), (9), and (10) of the first embodiment.

[0067] (11) The first split housing 22 and the second split housing 23 have intermediate locking portions 52e and 53e that lock the two second shielded electric wires 13 and 14. Therefore, the intermediate locking portions 52e and 53e allow the space between the two second shielded electric wires 13 and 14 to be effectively utilized.

[0068] The above embodiment can be implemented as follows: The above embodiment and the following modifications can be implemented in combination with each other within the scope of no technical contradiction. In the above embodiment, the wire harnesses 11 and 41 include the waterproof member 34 that covers the resin housing 21, the folded portions 12e, 13e, and 14e, the shield coupling member 31, and the like. However, the present invention is not limited to this embodiment and the waterproof member 34 may not be included. Furthermore, the waterproof member 34 may be another structure having the same function. For example, the waterproof member may be a waterproof member comprising a cylindrical resin tube and a rubber stopper, or a waterproof member comprising a shrinkable tube or the like.

[0069] In addition, for example, Figure 15 As shown, the wiring harness 11 can also be configured without the waterproof member 34. Instead, it can include a connection waterproof member 61 that covers the connection portion 16 within the resin housing 21, shielding the connecting member 31, the clamping ring 32, the bundling clamping ring 33, and the like from exposure. The connection waterproof member 61 is made of a non-conductive molded resin. Specifically, the connection waterproof member 61 is a molded resin material formed by covering the outer periphery of the connection portion 16 with a non-conductive resin material and filling the gaps within the resin housing 21.

[0070] Even in this case, the connection portion waterproof member 61 prevents the connection portion 16 from being submerged in water. Furthermore, compared to a configuration including a waterproof member 34 that covers the shield connection member 31 and the like, this configuration can achieve, for example, miniaturization. Furthermore, miniaturization can also reduce material requirements and manufacturing costs. Furthermore, the wiring harness 11 including the waterproof member 34 and the wiring harness 11 including the connection portion waterproof member 61 can be provided as two different waterproofing types, for example, depending on the user's needs.

[0071] In the above-described embodiment, the wire harnesses 11 and 41 include the grommets 15 disposed between the outer insulating coatings 13 d and 14 d and the folded portions 13 e and 14 e . However, the present invention is not limited thereto and the grommets 15 may not be included.

[0072] For example, Figure 16 As shown, the folded portions 13e and 14e may be configured to be bound by a binding ring 33 in a state of contact with the outer peripheral surface of the outer insulating coating 13d and 14d. This can reduce the number of parts compared to a structure in which a backing ring 15 is provided inside the folded portions 13e and 14e.

[0073] In the above embodiment, the spacers 24 and 54 have the arc portions 24 a and 54 a along the outer circumferences of the second shielded electric wires 13 and 14 , but the present invention is not limited thereto and the spacers may be configured without the arc portions 24 a and 54 a .

[0074] In the above embodiment, the second electromagnetic shielding members 13c and 14c include folded portions 13e and 14e arranged to cover the outer peripheries of the outer insulating coverings 13d and 14d. However, this is not limiting and the folded portions 13e and 14e may be omitted. In this case, for example, the second electromagnetic shielding members 13c and 14c may be bound together with the shield coupling member 31 by the binding tightening ring 33 while in contact with the outer peripheries of the inner insulating coverings 13b and 14b.

[0075] In the above embodiment, the resin housings 21 and 51 include the band restricting portions 24b and 54b that engage with the binding clamping ring 33. However, the present invention is not limited to this embodiment and may be configured without the band restricting portions 24b and 54b. Furthermore, the band restricting portions 24b and 54b may be positioned, shaped, or numbered differently as long as they can restrict the displacement of the binding clamping ring 33 along the longitudinal direction of the second shielded electrical wires 13 and 14.

[0076] In the above embodiment, the resin case 21, 51 includes a first split case 22, 52 and a second split case 23, 53. However, this is not limiting. For example, the first split portion and the second split portion may be integrally formed via a thin-walled hinge. Furthermore, the resin case 21, 51 may be composed of three or more split cases.

[0077] In the above embodiment, the wiring harness 11 includes one first shielded electric wire 12 and two first shielded electric wires 13 and 14. However, the present invention is not limited thereto, and the number of first shielded electric wires 12 and second shielded electric wires 13 and 14 may be varied. Furthermore, for example, a configuration may be employed in which the wiring harness 11 includes multiple second shielded electric wires 13 and 14 extending in the same direction from the connecting portions 16 and 43, but does not include the first shielded electric wire 12 extending in the opposite direction to the multiple second shielded electric wires 13 and 14.

[0078] In the above embodiment, the first electromagnetic shielding member 12c and the second electromagnetic shielding members 13c and 14c are braided wires formed by braiding wires into a cylindrical shape. However, the present invention is not limited thereto and may be formed of metal foil made of, for example, aluminum alloy.

[0079] In the above embodiment, the shield connecting member 31 is a braided wire made of wires braided into a cylindrical shape. However, this is not limiting and, for example, a metal foil made of an aluminum alloy or the like may also be used. Furthermore, the shield connecting member 31 may be configured so that it can be disposed from the outside of the resin housings 21 and 51. For example, the shield connecting member 31 may be a braided wire made of wires braided into a sheet shape, or it may be disposed so that it covers the outer circumference of the resin housings 21 and 51 by being wound from the outside of the resin housings 21 and 51 into the resin housings 21 and 51.

[0080] In the above embodiment, the binding band is a metal, cylindrical binding clamp ring 33. However, any other binding band may be used as long as it can bind and connect the second electromagnetic shielding members 13c and 14c and the shield connecting member 31. For example, a resin binding band capable of binding the plurality of second electromagnetic shielding members 13c and 14c and the shield connecting member 31 may be used.

[0081] (Reference example) The resin housings 21 , 51 may include the band regulating portions 24 b , 54 b engageable with the binding clamping ring 33 , but may not include the spacers 24 , 54 for suppressing deformation of the second shielded electric wires 13 , 14 .

[0082] Record the technical ideas that can be grasped from the above. (1) A wiring harness comprising: a plurality of shielded electric wires having a core wire and an electromagnetic shielding member covering the periphery of the core wire; a connecting portion connecting the core wires to each other; a resin shell covering the periphery of the connecting portion; a shield connecting member covering the periphery of the resin shell and connecting the plurality of electromagnetic shielding members; and a binding band for bundling the plurality of shielded electric wires and bundling and connecting the electromagnetic shielding members and the shield connecting member of the respective shielded electric wires together, the resin shell having a band limiting portion capable of engaging with the binding band to limit the deviation of the binding band along the length direction of the shielded electric wires.

[0083] According to this structure, by covering the shield connection member, electromagnetic wave radiation from the vicinity of the connection portion can be suppressed. Furthermore, since the multiple electromagnetic shielding members are collectively connected to the shield connection member using a binding band, the number of components can be reduced compared to a structure in which, for example, multiple electromagnetic shielding members are individually connected to the shield connection member using multiple binding bands. Furthermore, since the band limiting portion limits the deflection of the binding band along the length of the shielded wire, the connection between the multiple electromagnetic shielding members and the shield connection member can be stably maintained. Furthermore, since the band limiting portion is provided within the resin housing, the number of components can be reduced compared to a structure in which, for example, the band limiting portion is provided separately from the resin housing.

[0084] For example, in a structure where electromagnetic shielding members are directly connected only outside the connection portion, it is difficult to achieve a good connection while effectively covering the entire circumference of the connection portion. In contrast, a simple structure can stably maintain the connection state of the electromagnetic shielding members and effectively suppress electromagnetic wave radiation from the vicinity of the connection portion.

[0085] The wire harness of the illustrated embodiment may be a vehicle wire harness, similarly to Patent Document 1. like Figure 4 and Figure 5 As shown, the first divided spacer 22f of the spacer 24 may be formed so as to protrude, for example, linearly, from between the semicircular openings 22b and 22c where the inner insulating coverings 13b and 14b of the second shielded wires 13 and 14 are located in the first split housing 22, in the longitudinal direction of the second shielded wires 13 and 14. The second divided spacer 23f of the spacer 24 may be formed so as to protrude, for example, linearly, from between the semicircular openings 23b and 23c where the inner insulating coverings 13b and 14b of the second shielded wires 13 and 14 are located in the second split housing 23, in the longitudinal direction of the second shielded wires 13 and 14. The same applies to the spacer 54.

[0086] like Figures 4 to 7As shown, the spacer 24 may include a pair of arcuate portions 24a formed on both surfaces sandwiched between the second shielded wires 13 and 14. The first and second divided spacers 22f and 23f of the spacer 24 may be inserted between the second shielded wires 13 and 14 from the sides. Alternatively, when the first and second divided spacers 22f and 23f are inserted between the second shielded wires 13 and 14, the pair of arcuate portions 24a may be formed by the first and second divided spacers 22f and 23f. The same applies to the spacer 54.

[0087] The pair of arcuate portions 24a of the spacer 24 may also be or include concave curved surfaces that mate with the outermost surfaces (folded portions 13e, 14e) of the second electromagnetic shielding members 13c, 14c of the two first shielded electric wires 13, 14, respectively. In the illustrated example, the spacer 24 may include a plurality of plate-like ribs spaced apart at regular intervals along the longitudinal direction of the second shielded electric wires 13, 14. Each of these plate-like ribs may have a concave curved surface that mates with the outermost surface (folded portions 13e, 14e) of the second electromagnetic shielding member 13c, 14c of the second shielded electric wire 13, 14, respectively. The spacer 24 or its pair of arcuate portions 24a may sometimes be referred to as an electromagnetic shield receiving surface or an electromagnetic shield supporting surface. The same applies to the spacer 54. Description of Reference Numerals

[0088] 11 wiring harness 12. 1st shielded wire (shielded wire) 12a 1st core wire (core wire) 12b inner insulation covering 12c First electromagnetic shielding member (electromagnetic shielding member) 12d Outer insulation covering 12e Turnback 13. Second shielded wire (shielded wire) 13a Second core wire (core wire) 13b Inner insulation covering 13c Second electromagnetic shielding member (electromagnetic shielding member) 13d Outer insulation covering 13e Turnback 14. Second shielded wire (shielded wire) 14a Second core wire (core wire) 14b inner insulation covering 14c Second electromagnetic shielding member (electromagnetic shielding member) 14d Outer insulation covering 14e Turnback 15 Gasket 16 Connection 21 resin shell 22 1st split shell 22a Semicircular opening 22b semicircular opening 22c semicircular opening 22d locking part 22e locking part 22f 1st dividing spacer 23 Second split shell 23a Semicircular opening 23b semicircular opening 23c semicircular opening 23d locking part 23e locking part 23f Second dividing spacer 24 spacer 24a Arc part 24b with restriction section 31 Shielding connecting components 32 tightening ring 33 strapping ring (strap) 33a semicircular arc 33b Connecting part 34 Waterproof components 41 Wiring Harness 42 connection terminals 43 Connection 51 resin shell 52 1st split shell 52a semicircular opening 52b semicircular opening 52c semicircular opening 52d through hole 52e middle stop 52f Positioning recess 52g 1st split spacer 53 Second split shell 53a semicircular opening 53b semicircular opening 53c semicircular opening 53d through hole 53e middle stop 53f Positioning convex part 53g second split spacer 54 spacer 54a Arc part 54b Band restriction section 61 Waterproof components of connection parts

Claims

1. A wiring harness comprising: a plurality of shielded electric wires having a core wire and an electromagnetic shielding member covering an outer periphery of the core wire; a connecting portion connecting the core wires to each other; a resin housing covering an outer periphery of the connecting portion; a shield connecting member covering the outer periphery of the resin case and connecting the plurality of electromagnetic shielding members; as well as a bundling band for bundling the plurality of shielded electric wires and bundling and connecting the electromagnetic shielding members and the shield connecting members of the respective shielded electric wires together; The resin case includes a spacer that is interposed between the plurality of shielded electric wires inside the binding band to thereby suppress deformation of the plurality of shielded electric wires.

2. The wire harness according to claim 1, wherein The spacer has an arc portion along the outer circumference of the shielded electric wire.

3. The wire harness according to claim 1 or claim 2, wherein: The shielded electric wire has an outer insulating coating covering the outer periphery of the electromagnetic shield member. The electromagnetic shield member includes a folded portion that is folded back from the inside to the outside of the outer insulating cover to cover the outer periphery of the outer insulating cover. The binding band binds the folded portion and the shield connection member together. The wire harness according to claim 3 , wherein: A gasket is provided, and the gasket is arranged between the outer insulating cover portion and the folded portion. The wire harness according to claim 3 , wherein: The folded portion is bound by the binding band in a state of being in contact with the outer peripheral surface of the outer insulating cover.

6. The wire harness according to any one of claims 1 to 5, wherein The resin housing includes a band restricting portion that is engageable with the binding band to restrict displacement of the binding band along the longitudinal direction of the shielded electric wire.

7. The wire harness according to any one of claims 1 to 6, wherein The resin case includes a first split case and a second split case that are assembled so as to sandwich the connection portion.

8. The wire harness according to claim 7, wherein The first split shell and the second split shell have the same shape.

9. The wire harness according to claim 7 or claim 8, wherein: The first split housing and the second split housing have locking portions that lock with each other on both sides in a width direction that is a direction in which the plurality of shielded electric wires bundled with the bundling band are arranged.

10. The wire harness according to any one of claims 7 to 9, wherein The first split housing and the second split housing have intermediate locking portions that are locked to each other between the plurality of shielded electric wires bundled with the bundling band.

11. The wire harness according to any one of claims 1 to 10, wherein The plurality of shielded electric wires include a first shielded electric wire and a second shielded electric wire extending in opposite directions with the connection portion as a base point. A plurality of at least one of the first shielded electric wire and the second shielded electric wire are provided, and the first shielded electric wire is bundled with the bundling band.

12. The wire harness according to any one of claims 1 to 11, wherein A waterproof member is provided that covers the resin case, the electromagnetic shield member, the shield connection member, and the binding band together.

13. The wire harness according to any one of claims 1 to 11, wherein A connection portion waterproof member is provided, the connection portion waterproof member covering the connection portion in the resin case, The shielding connection member and the binding belt are exposed.

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