Wire harness

Abstract

To provide a wire harness capable of suppressing the radiation of an electromagnetic wave from the periphery of a connection portion by securing a good connection state of an electromagnetic shielding member.SOLUTION: A wire harness has: a plurality of shielded electric wires (13, 14) which have core wires (13a, 14a) and electromagnetic shielding members (13c, 14c) covering outer peripheries of the core wire, respectively; a connection portion by which the core wires are connected; a resin case (21) which covers an outer periphery of the connection portion; a shielding coupling member (31) to which the plurality of electromagnetic shielding members are connected while covering an outer periphery of the resin case; a binding band (33) which binds and connects the electromagnetic shielding member of each of the plurality of shielded electric wires and the shielding coupling member while tying the plurality of shielded electric wires. The resin case has a spacer portion (24) which is interposed between the plurality of shielded electric wires inside the binding band to thereby suppress deformation of the plurality of shielded electric wires.SELECTED DRAWING: Figure 7

Description

[Technical field]

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

[0002] Conventionally, some wire harnesses have a connection part where the core wires of a plurality of electric wires are connected to each other (for example, see Patent Document 1). In this wire harness, the connection part is exposed from the insulating coating of each electric wire, but the exposed part including the connection part is covered with a waterproof material to prevent water from entering from the outside. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-248527 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, a shielded electric wire may be used as the electric wire of the above-mentioned wire harness. The shielded electric wire has an electromagnetic shielding member such as a braided wire that covers the outer periphery of the core wire via an insulating coating, and the radiation of electromagnetic waves is suppressed. However, even when the shielded electric wire is used, there is a risk that electromagnetic waves may be radiated from the periphery of the connection part due to the periphery of the connection part being exposed from the electromagnetic shielding member. As a countermeasure, a configuration in which the electromagnetic shielding members are directly connected to each other on the outside of the connection part may be considered, but it is difficult to cover the entire periphery of the connection part and connect well.

[0005] An object of the present disclosure is to provide a wire harness capable of suppressing radiation of electromagnetic waves from the periphery of a connection portion by ensuring a good connection state of an electromagnetic shielding member. [Means for solving the problem]

[0006] The wire harness of the present disclosure includes a plurality of shielded electric wires each having a core wire and an electromagnetic shielding member covering an outer periphery of the core wire, a connection portion at which the core wires are connected, a resin case covering the outer periphery of the connection portion, a shield connecting member covering the outer periphery of the resin case and connecting the plurality of electromagnetic shielding members, and a cable tie that bundles the plurality of shielded electric wires and ties together and connects the electromagnetic shielding member of each of the plurality of shielded electric wires and the shield connecting member, and the resin case has a spacer portion that is interposed between the plurality of shielded electric wires inside the cable tie to suppress deformation of the plurality of shielded electric wires. Effect of the Invention

[0007] According to the wire harness of the present disclosure, a good connection state of the electromagnetic shielding member is ensured, thereby making it possible to suppress radiation of electromagnetic waves from the periphery of the connection portion. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a cross-sectional view of a wire harness according to a first embodiment. [Diagram 2] FIG. 2 is a partially enlarged cross-sectional view of the wire harness in the first embodiment. [Diagram 3] FIG. 3 is a partially enlarged cross-sectional view of the wire harness in the first embodiment. [Figure 4] FIG. 4 is an exploded perspective view of a portion of the wire harness in the first embodiment. [Diagram 5] FIG. 5 is an exploded perspective view of the resin case in the first embodiment. [Figure 6] FIG. 6 is a perspective view of a portion of the wire harness in the first embodiment. [Figure 7] FIG. 7 is a cross-sectional view of a portion of the wire harness in the first embodiment. [Figure 8] FIG. 8 is a cross-sectional view of the wire harness according to the second embodiment. [Figure 9] FIG. 9 is a partially enlarged cross-sectional view of the wire harness according to the second embodiment. [Figure 10] FIG. 10 is a partially enlarged cross-sectional view of the wire harness according to the second embodiment. [Figure 11] FIG. 11 is an exploded perspective view of a portion of the wire harness according to the second embodiment. [Figure 12] FIG. 12 is an exploded perspective view of a resin case according to the second embodiment. [Figure 13] FIG. 13 is a perspective view of a portion of the wire harness according to the second embodiment. [Figure 14] FIG. 14 is a cross-sectional view of a portion of the wire harness according to the second embodiment. [Figure 15] FIG. 15 is a cross-sectional view of a wire harness according to another embodiment. [Figure 16] FIG. 16 is a partially enlarged cross-sectional view of a wire harness according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described. The wire harness of the present disclosure includes: [1] A device comprising: a plurality of shielded electric wires each having a core wire and an electromagnetic shielding member covering an outer periphery of the core wire; a connection portion at which the core wires are connected; a resin case covering the outer periphery of the connection portion; a shield connecting member covering the outer periphery of the resin case and connecting the plurality of electromagnetic shielding members; and a cable tie that bundles the plurality of shielded electric wires and ties together and connects the electromagnetic shielding member and the shield connecting member of each of the plurality of shielded electric wires, wherein the resin case has a spacer portion that is interposed between the plurality of shielded electric wires inside the cable tie to suppress deformation of the plurality of shielded electric wires.

[0010] According to this configuration, the electromagnetic radiation from the periphery of the connection portion can be suppressed by covering the shield connection member. In addition, since the multiple electromagnetic shield members are connected together to the shield connection member by a cable tie, the number of parts can be reduced compared to, for example, a configuration in which each of the multiple electromagnetic shield members is connected to the shield connection member by multiple cable ties or the like. In addition, the multiple shield wires bundled with the cable tie are suppressed from deformation by the spacer portion interposed between the multiple shield wires, so that the multiple electromagnetic shield members and the shield connection member can be connected well. That is, for example, in a configuration without a spacer portion, the multiple shield wires may be deformed, such as bending toward each other when bundled with the cable tie, so that the surface pressure between the electromagnetic shield member and the shield connection member may be reduced, and the connection may become unstable. In contrast, the deformation of the multiple shield wires is suppressed by the spacer portion, so that the multiple electromagnetic shield members and the shield connection member can be connected well. In addition, since the spacer portion is provided in the resin case, the number of parts can be reduced compared to, for example, a case in which the spacer portion is provided separately from the resin case.

[0011] [2] In the above item [1], the spacer portion may have an arc portion that follows an outer periphery of the shielded electric wire. According to this configuration, the spacer portion has an arc portion that follows the outer periphery of the shielded electric wire, so that deformation such as crushing of the shielded electric wire can be effectively suppressed.

[0012] [3] In the above [1] or [2], the shielded wire may have an outer insulating coating covering an outer periphery of the electromagnetic shielding member, the electromagnetic shielding member may have a folded portion folded back from the inside to the outside of the outer insulating coating so as to cover the outer periphery of the outer insulating coating, and the cable tie may bundle the folded portion and the shield connecting member together.

[0013] According to this configuration, the folded portion of the electromagnetic shielding member that is arranged to cover the outer periphery of the outer insulating coating is bound together with the shield connecting member by a cable tie, so that a larger area of ​​the electromagnetic shielding member can come into contact with the shield connecting member compared to, for example, a case in which the electromagnetic shielding member is not folded back to cover the outer periphery of the outer insulating coating.

[0014] [4] In the above [3], a base ring may be provided that is disposed between the outer insulating coating and the folded-back portion. According to this configuration, the folded portion and the shield connecting member can be stably sandwiched between the underlay ring and the cable tie, thereby achieving a good connection.

[0015] [5] In the above [3], the folded portion may be tied by the cable tie while being in contact with an outer peripheral surface of the outer insulating coating. According to this configuration, the number of parts can be reduced compared to, for example, a configuration in which an underlay ring is provided on the inside of the folded-back portion.

[0016] [6] In any one of [1] to [5] above, the resin case may have a band regulating portion capable of engaging with the cable tie to regulate shifting of the cable tie along the longitudinal direction of the shielded wire.

[0017] According to this configuration, the band restricting portion restricts the cable tie from shifting in the longitudinal direction of the shielded wire, so that the connection state between the multiple electromagnetic shield members and the shield connecting member can be stably maintained.

[0018] [7] In any one of the above items [1] to [6], the resin case may have a first separate case and a second separate case that are assembled to sandwich the connection portion.

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

[0020] According to this configuration, the first separate case and the second separate case can be manufactured using a single type of mold, which simplifies manufacturing and simplifies parts management of the first separate case and the second separate case.

[0021] [9] In the above [7] or [8], the first split case and the second split case may have locking portions for locking each other on both sides in the width direction, which is the direction in which the multiple shielded electric wires bundled with the cable tie are arranged.

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

[10] In any one of the above [7] to [9], the first split case and the second split case may have an intermediate locking portion that locks them together between the multiple shielded electric wires bundled with the cable tie.

[0023] According to this configuration, the space between the multiple shielded electric wires bundled with the cable tie can be effectively utilized by the intermediate locking portion.

[11] In any one of [1] to

[10] above, the plurality of shielded electric wires may have a first shielded electric wire and a second shielded electric wire extending in opposite directions from the connection portion, and at least one of the first shielded electric wire and the second shielded electric wire may be provided in plurality, and one of the first shielded electric wire and the second shielded electric wire may be bundled by the cable tie.

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

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

[11] , a waterproof member may be provided that collectively covers the resin case, the electromagnetic shielding member, the shield connecting member, and the cable tie.

[0025] According to this configuration, the connection portion, the electromagnetic shield member, and the shield connecting member can all be prevented from becoming wet.

[13] In any one of [1] to

[11] above, a connection waterproofing member may be provided that covers the connection portion within the resin case, and the shield connecting member and the cable tie may be exposed.

[0026] According to this configuration, the connection waterproofing member can prevent the connection from becoming wet, and compared to a configuration including a waterproofing member that collectively covers the shield connecting member and the like, for example, the size can be reduced.

[0027] [Details of the embodiment of the present disclosure] (First embodiment) Specific examples of the wire harness of the present disclosure will be described below with reference to the drawings. In each drawing, for convenience of explanation, some of the configuration may be exaggerated or simplified. In addition, the dimensional ratio of each part may differ in each drawing. In this specification, "parallel," "orthogonal," and "perfect circle" do not only mean strictly parallel, orthogonal, or perfect circle, but also include approximately parallel, orthogonal, or perfect circle within the range of the action and effect of this embodiment. Note that the present invention is not limited to these examples, but is indicated by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0028] (Configuration of wire harness 11) 1, the wire harness 11 includes a first shielded electric wire 12 as a shielded electric wire, two second shielded electric wires 13 and 14 as shielded electric wires, and an underlay ring 15 (see FIGS. 2 and 3). The wire harness 11 also includes a resin case 21, a shield connecting member 31, a crimping ring 32 (see FIG. 2), a bundling crimping ring 33 as a cable tie (see FIG. 3), and a waterproof member 34.

[0029] (Configuration of the first shielded electric wire 12, the second shielded electric wires 13, 14 and the underlay ring 15) 2, the first shielded electric wire 12 has a first core wire 12a as a core wire and an inner insulating coating 12b covering the outer periphery of the first core wire 12a. The cross-sectional shape of the first core wire 12a is circular. The first shielded electric wire 12 also has a first electromagnetic shield member 12c 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] As shown in Fig. 3, the second shielded electric wires 13, 14 have second core wires 13a, 14a as core wires and inner insulating coatings 13b, 14b that cover the outer peripheries of the second core wires 13a, 14a. The cross-sectional shape of the second core wires 13a, 14a is circular. The second shielded electric wires 13, 14 have second electromagnetic shield members 13c, 14c as electromagnetic shield members that cover the outer peripheries of the inner insulating coatings 13b, 14b, and outer insulating coatings 13d, 14d that cover the outer peripheries of the second electromagnetic shield members 13c, 14c.

[0031] The first electromagnetic shield member 12c and the second electromagnetic shield member 13c, 14c suppress radiation of electromagnetic waves from the first core wire 12a and the second core wire 13a, 14a. The first electromagnetic shield member 12c and the second electromagnetic shield member 13c, 14c of this embodiment are braided wires in which conductive wires such as aluminum alloy are braided into a cylindrical shape. In the drawings, the shapes and appearances of the braided wires in the first electromagnetic shield member 12c and the second electromagnetic shield member 13c, 14c are appropriately and typically illustrated.

[0032] At the ends of the first shielded electric wire 12 and the second shielded electric wire 13, 14, the first core wire 12a and the second core wire 13a, 14a are provided so as to be exposed to the outside. At the ends of the first shielded electric wire 12 and the second shielded electric wire 13, 14, the first electromagnetic shield member 12c and the second electromagnetic shield member 13c, 14c are provided so as to be exposed to the outside. The first electromagnetic shield member 12c and the second electromagnetic shield member 13c, 14c have folded-back portions 12e, 13e, 14e that are folded back from the inside to the outside of the outer insulating coating 12d, 13d, 14d and arranged to cover the outer periphery of the outer insulating coating 12d, 13d, 14d. In other words, the first electromagnetic shield member 12c and the second electromagnetic shield member 13c, 14c have folded-back portions 12e, 13e, 14e that are formed by folding back the parts exposed outside the outer insulating coating 12d, 13d, 14d.

[0033] First, the outer insulating coatings 12d, 13d, and 14d are stripped from the ends of the first shielded electric wire 12 and the second shielded electric wire 13, 14. Next, the first electromagnetic shield member 12c and the second electromagnetic shield member 13c, 14c are folded back from the ends of the first shielded electric wire 12 and the second shielded electric wire 13, 14, and then the inner insulating coatings 12b, 13b, and 14b are stripped from the ends of the first shielded electric wire 12 and the second shielded electric wire 13, 14. As a result, the first electromagnetic shield member 12c and the second electromagnetic shield member 13c, 14c are exposed, and folded-back portions 12e, 13e, and 14e are formed, and further the first core wire 12a and the second core wire 13a, 14a are exposed.

[0034] The underlay ring 15 is made of metal and formed into a cylindrical shape. The underlay ring 15 is disposed between the outer insulating coatings 12d, 13d, 14d and the folded-back portions 12e, 13e, 14e. In other words, the underlay ring 15 is disposed on the outer periphery of the outer insulating coatings 12d, 13d, 14d when the first electromagnetic shield member 12c and the second electromagnetic shield member 13c, 14c are folded back.

[0035] The first core wire 12a and the second core wires 13a, 14a are connected to each other to form a connection portion 16. In this embodiment, the first core wire 12a and the second core wires 13a, 14a are directly welded to each other. The first shielded electric wire 12 and the second shielded electric wires 13, 14 extend in opposite directions from each other with the connection portion 16 as a base point. In detail, the first shielded electric wire 12 and the second shielded electric wires 13, 14 extend in one direction (leftward in FIG. 1) and the two second shielded electric wires 13, 14 extend in the other direction (rightward in FIG. 1) with the connection portion 16 as a base point. The wire harness 11 electrically connects, for example, a battery connected to the first core wire 12a and electric devices connected to the second core wires 13a, 14a.

[0036] (Configuration of resin case 21) As shown in FIG. 4, the resin case 21 is formed in a flat box shape capable of covering the outer periphery of the connection portion 16. The resin case 21 is composed of a first separate case 22 and a second separate case 23 that are assembled to sandwich the connection portion 16. The resin case 21, i.e., the first separate case 22 and the second separate case 23, can be made of a synthetic resin such as polypropylene, polyamide, or polyacetal. The first separate case 22 and the second separate case 23 have the same shape. In other words, the first separate case 22 and the second separate case 23 have the same product number.

[0037] As shown in Fig. 4 and Fig. 5, the first separate case 22 and the second separate case 23 have semicircular openings 22a, 22b, 22c, 23a, 23b, and 23c of a semicircular arc shape arranged at positions sandwiching the exposed inner insulating coatings 12b, 13b, and 14b, respectively. The first separate case 22 and the second separate case 23 also have locking portions 22d, 22e, 23d, and 23e that lock with each other on both sides in the width direction in which the second shielded electric wires 13 and 14 are arranged. In the first separate case 22, one locking portion 22d is a male locking portion, and the other locking portion 22e is a female locking portion. In the second separate case 23, one locking portion 23d is a male locking portion, and the other locking portion 23e is a female locking portion. The first separate case 22 and the second separate case 23 are locked to each other by the male locking portion of the first separate case 22 engaging with the female locking portion of the second separate case 23 and the male locking portion of the second separate case 23 engaging with the female locking portion of the first separate case 22.

[0038] (Configuration of shield connecting member 31, crimping ring 32, and bundling crimping ring 33) As shown in FIG. 6, the shield connecting member 31 suppresses radiation of electromagnetic waves from the resin case 21. The shield connecting member 31 connects the first electromagnetic shield member 12c and the second electromagnetic shield members 13c and 14c while covering the outer periphery of the resin case 21. The shield connecting member 31 has flexibility. The shield connecting member 31 of this embodiment is, for example, a braided wire in which conductive wires such as aluminum alloy are braided into a cylindrical shape. In the drawings, the shape and appearance of the braided wire in the shield connecting member 31 are appropriately and typically illustrated. The shield connecting member 31 is disposed so as to continuously cover the range from the folded-back portion 12e of the first electromagnetic shield member 12c to the folded-back portions 13e and 14e of the second electromagnetic shield members 13c and 14c.

[0039] 2, the crimping ring 32 is made of metal and formed into a cylindrical shape. The crimping ring 32 connects the folded-back portion 12e of the first electromagnetic shield member 12c and the shield connecting member 31. More specifically, the crimping ring 32 is crimped from the outer periphery, thereby connecting the folded-back portion 12e of the first electromagnetic shield member 12c and the shield connecting member 31 by tightening them from the outer periphery. The folded-back portion 12e and the shield connecting member 31 are sandwiched and connected between the underlay ring 15 and the crimping ring 32.

[0040] 3 and 7, the bundling crimping ring 33 is made of metal and formed into a cylindrical shape. The bundling crimping ring 33 connects the folded-back portions 13e, 14e of the second electromagnetic shielding members 13c, 14c to the shield connecting member 31. More specifically, the bundling crimping ring 33 is crimped from the outer periphery to bundle the two second shielding electric wires 13, 14 and to connect the folded-back portions 13e, 14e of the two second electromagnetic shielding members 13c, 14c to the shield connecting member 31 by bundling them together. In addition, when assembled, the bundling crimping ring 33 has a pair of semicircular arc portions 33a provided on both sides in the width direction of the resin case 21 when viewed from the longitudinal direction of the second shielding electric wires 13, 14 (see FIG. 7), and a pair of connecting portions 33b connecting the ends of the semicircular arc portions 33a to each other.

[0041] (Configuration of waterproof member 34) As shown in FIG. 1, the waterproof member 34 collectively covers the resin case 21, the folded parts 12e, 13e, and 14e of the first electromagnetic shield member 12c and the second electromagnetic shield member 13c and 14c, the shield connecting member 31, the crimping ring 32, and the bundling crimping 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 into an area surrounded by a molding die (not shown) arranged outside the shield connecting member 31, etc. In this embodiment, the molten resin material penetrates until it reaches the connecting part 16, etc. arranged inside the resin case 21, and then hardens. That is, the waterproof member 34 of this embodiment is also arranged inside the resin case 21.

[0042] (Detailed configuration of the resin case 21) 3 and 7, the resin case 21 has a spacer portion 24. The spacer portion 24 is interposed between the two second shielded electric wires 13, 14 inside the bundling crimping ring 33 to suppress deformation of the second shielded electric wires 13, 14.

[0043] In detail, as shown in FIG. 7, the spacer portion 24 is made up of a first separate spacer portion 22f provided in the first separate case 22 and a second separate spacer portion 23f provided in the second separate case .

[0044] The spacer portion 24 has an arc portion 24a that follows the outer periphery of the second shielded electric wire 13, 14. More specifically, the arc portion 24a is formed in an arc shape that follows the outer periphery of the folded-back portions 13e, 14e. The arc portion 24a is formed as a pair so as to fill almost the entire space between the opposing folded-back portions 13e, 14e when viewed from the longitudinal direction of the second shielded electric wire 13, 14.

[0045] 6 and 7, the resin case 21 has a band regulating portion 24b that can be engaged with the bundling crimping ring 33 to regulate the displacement of the bundling crimping ring 33 along the longitudinal direction of the second shielded electric wires 13 and 14. The band regulating portion 24b protrudes from the spacer portion 24. A pair of band regulating portions 24b are provided in the longitudinal direction of the second shielded electric wires 13 and 14, and the bundling crimping ring 33 is disposed between the pair of band regulating portions 24b to regulate the displacement of the bundling crimping ring 33 along the longitudinal direction of the second shielded electric wires 13 and 14. The band regulating portion 24b is provided in each of the first separate case 22 and the second separate case 23. That is, the band regulating portion 24b is provided on the front and back of the resin case 21.

[0046] Next, the operation of the wire harness 11 configured as above will be described. The first shielded electric wire 12 has a first electromagnetic shield member 12c that covers the outer periphery of the first core wire 12a via the inner insulating coating 12b, thereby suppressing radiation of electromagnetic waves from the first shielded electric wire 12. Moreover, the second shielded electric wires 13, 14 have second electromagnetic shield members 13c, 14c that cover the outer periphery of the second core wire 13a, 14a via the inner insulating coatings 13b, 14b, thereby suppressing radiation of electromagnetic waves from the second shielded electric wires 13, 14. Moreover, the connection portion 16 is covered by the shield connecting member 31 that is connected to the first electromagnetic shield member 12c and the second electromagnetic shield members 13c, 14c via the resin case 21, thereby suppressing radiation of electromagnetic waves from the periphery of the connection portion 16.

[0047] Next, the effects of the first embodiment will be described below. (1) The two second electromagnetic shield members 13c, 14c are connected together to the shield connecting member 31 by the bundling crimping ring 33. Therefore, the number of parts can be reduced compared to a configuration in which each of the two second electromagnetic shield members 13c, 14c is connected to the shield connecting member 31 by a plurality of crimping rings or the like. The two second shield electric wires 13, 14 bundled by the bundling crimping ring 33 are prevented from being deformed by the spacer portion 24 interposed between the two second shield electric wires 13, 14. Therefore, the two second electromagnetic shield members 13c, 14c and the shield connecting member 31 can be connected well. That is, for example, in a configuration without the spacer portion 24, the two second shield electric wires 13, 14 are deformed by bending toward each other, which may cause the surface pressure between the second electromagnetic shield members 13c, 14c and the shield connecting member 31 to be reduced, resulting in an unstable connection. In contrast, the spacer portion 24 suppresses deformation of the two second shielded electric wires 13, 14, thereby enabling good connection between the two second electromagnetic shield members 13c, 14c and the shield connecting member 31. Furthermore, since the spacer portion 24 is provided in the resin case 21, the number of parts can be reduced compared to, for example, a case in which the spacer portion 24 is provided separately from the resin case 21.

[0048] (2) Since the spacer portion 24 has the arc portion 24a that follows the outer periphery of the second shielded electric wires 13 and 14, the second shielded electric wires 13 and 14 can be effectively prevented from being deformed so as to be crushed.

[0049] (3) The folded-back portions 13e, 14e of the second electromagnetic shield members 13c, 14c, which are arranged so as to cover the outer peripheries of the outer insulating coatings 13d, 14d, are bound together with the shield connecting member 31 by the bundling crimping ring 33. Therefore, for example, the second electromagnetic shield members 13c, 14c can be brought into contact with the shield connecting member 31 over a wider area than when the second electromagnetic shield members 13c, 14c are not folded back so as to cover the outer peripheries of the outer insulating coatings 13d, 14d.

[0050] (4) The underlay ring 15 is disposed between the outer insulating coatings 13d, 14d and the folded-back portions 13e, 14e. Therefore, the underlay ring 15 and the bundling crimping ring 33 can stably sandwich the folded-back portions 13e, 14e and the shield connecting member 31 to provide a good connection.

[0051] (5) The resin case 21 has the band restricting portion 24b that can engage with the bundling crimping ring 33 to restrict misalignment of the bundling crimping ring 33 along the longitudinal direction of the second shielded electric wires 13, 14. Therefore, the band restricting portion 24b restricts the bundling crimping ring 33 from misaligning along the longitudinal direction of the second shielded electric wires 13, 14, so that the connection state between the two second electromagnetic shield members 13c, 14c and the shield connecting member 31 can be stably maintained.

[0052] (6) Resin case 21 has first separate case 22 and second separate case 23 that are assembled to sandwich connection portion 16. Therefore, first separate case 22 and second separate case 23 can easily cover the outer periphery of connection portion 16.

[0053] (7) The first separate case 22 and the second separate case 23 have the same shape. Therefore, only one type of mold is required to manufacture the first separate case 22 and the second separate case 23, which simplifies manufacturing. In addition, parts management of the first separate case 22 and the second separate case 23 is easy.

[0054] (8) The first separate case 22 and the second separate case 23 have locking portions 22d, 22e, 23d, and 23e that lock with each other on both sides in the width direction, which is the direction in which the two second shielded electric wires 13, 14 are arranged. Thus, both sides in the width direction of the resin case 21 can be locked in a well-balanced manner by the locking portions 22d, 22e, 23d, and 23e.

[0055] (9) Applicable to the wire harness 11 including the first shielded electric wire 12 and the second shielded electric wires 13, 14 extending in opposite directions from the connection portion 16. In this embodiment, the number of parts can be reduced on the side where the two second shielded electric wires 13, 14 are arranged, and the two second electromagnetic shield members 13c, 14c and the shield connecting member 31 can be well connected to each other.

[0056] (10) The waterproof member 34 can collectively prevent the resin case 21, the folded-back portions 12e, 13e, 14e, the shield connecting member 31, the crimping ring 32, and the bundling crimping ring 33 from becoming wet.

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

[0058] (Configuration of wire harness 11) 8 to 10, the wire harness 41 includes one first shielded electric wire 12, two second shielded electric wires 13 and 14, an underlay ring 15 (see FIGS. 9 and 10), and a connection terminal 42. The wire harness 11 also includes a resin case 51, a shield connecting member 31, a crimping ring 32 (see FIG. 9), a bundling crimping ring 33 (see FIG. 10) as a cable tie, and a waterproof member 34.

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

[0060] (Configuration of resin case 51) 11, resin case 51 is formed in a flat box shape capable of covering the outer periphery of connection portion 43. Resin case 51 is composed of first separate case 52 and second separate case 53 which are assembled to sandwich connection portion 43. As the material of resin case 51, i.e., first separate case 52 and second separate case 53, for example, synthetic resin such as polypropylene, polyamide, polyacetal, etc., can be used.

[0061] As shown in Figs. 11 and 12, the first separate case 52 and the second separate case 53 have semicircular openings 52a, 52b, 52c, 53a, 53b, and 53c of a semicircular arc shape arranged at positions sandwiching the exposed inner insulating coatings 12b, 13b, and 14b, respectively. The first separate case 22 and the second separate case 23 have through holes 52d and 53d between the two second shielded electric wires 13 and 14, and have intermediate locking portions 52e and 53e that lock the first separate case 22 and the second separate case 23 to each other on the inner walls of the through holes 52d and 53d. The intermediate locking portion 52e of the first separate case 22 is a female locking portion. The intermediate locking portion 53e of the second separate case 23 is a male locking portion. The first separate case 52 has a positioning recess 52f on a part of the surface facing the second separate case 53. The second separate case 53 has a positioning protrusion 53f on a portion of the surface facing the first separate case 52. The first separate case 22 and the second separate case 23 are locked to each other by the positioning protrusion 53f fitting into the positioning recess 52f and by the respective intermediate locking portions 52e, 53e fitting into each other.

[0062] 10 and 14, the resin case 51 has a spacer portion 54. The spacer portion 54 is interposed between the two second shielded electric wires 13, 14 inside the bundling crimping ring 33 to suppress deformation of the second shielded electric wires 13, 14.

[0063] In detail, as shown in FIG. 12, the spacer portion 54 is composed of a first separate spacer portion 52g provided in the first separate case 52 and a second separate spacer portion 53g provided in the second separate case 53.

[0064] 14, the spacer portion 54 has an arc portion 54a that follows the outer periphery of the second shielded electric wire 13, 14. More specifically, the arc portion 54a is formed in an arc shape that follows the outer periphery of the folded-back portions 13e, 14e. The arc portion 54a is formed as a pair so as to fill almost the entire space between the opposing folded-back portions 13e, 14e when viewed in the longitudinal direction of the second shielded electric wire 13, 14.

[0065] 13 and 14, the resin case 51 has a band regulating portion 54b that can be engaged with the bundling crimping ring 33 to regulate the displacement of the bundling crimping ring 33 along the longitudinal direction of the second shielded electric wires 13 and 14. The band regulating portion 54b protrudes from the spacer portion 54. A pair of the band regulating portions 54b are provided in the longitudinal direction of the second shielded electric wires 13 and 14, and the bundling crimping ring 33 is disposed between the pair of band regulating portions 54b to regulate the displacement of the bundling crimping ring 33 along the longitudinal direction of the second shielded electric wires 13 and 14. The band regulating portion 54b is provided in each of the first separate case 52 and the second separate case 53. That is, the band regulating portion 54b is provided on the front and back of the resin case 51.

[0066] Next, the effects of the second embodiment 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 separate case 22 and the second separate case 23 have intermediate locking portions 52e, 53e that lock the two second shielded electric wires 13, 14 together. Therefore, the space between the two second shielded electric wires 13, 14 can be effectively utilized by the intermediate locking portions 52e, 53e.

[0068] The above embodiment can be modified as follows: The above embodiment and the following modifications can be combined with each other to the extent that no technical contradiction occurs. In the above embodiment, the wire harness 11, 41 includes the waterproof member 34 that collectively covers the resin case 21, the folded-back portions 12e, 13e, 14e, the shield connecting member 31, etc., but is not limited to this and may not include the waterproof member 34. In addition, the waterproof member 34 may have another configuration having a similar function, and may be, for example, a waterproof member having a cylindrical resin pipe and a rubber plug, or a waterproof member made of a shrink tube, etc.

[0069] 15, the wire harness 11 may not include the waterproof member 34, but may include a connection portion waterproof member 61 that covers the connection portion 16 inside the resin case 21, while exposing the shield connecting member 31, the crimping ring 32, the bundling crimping ring 33, etc. The connection portion waterproof member 61 is a non-conductive molded resin. More specifically, the connection portion waterproof member 61 is a molded resin that is provided so as to cover the outer periphery of the connection portion 16 and fill the gap inside the resin case 21 with a non-conductive resin material.

[0070] Even in this case, the connection portion waterproof member 61 can prevent the connection portion 16 from getting wet. In addition, compared to a configuration including the waterproof member 34 that collectively covers the shield connecting member 31 and the like, for example, the size can be reduced. In addition, for example, the reduction in size can lead to a reduction in material and manufacturing costs. Note that the wire harness 11 including the waterproof member 34 and the wire harness 11 including the connection portion waterproof member 61 can be provided as two types of products with different waterproof types, for example, in response to user requests.

[0071] In the above embodiment, the wire harness 11, 41 is provided with an underlay ring 15 arranged between the outer insulating coating 13d, 14d and the folded-back portion 13e, 14e, but is not limited to this and may not be provided with the underlay ring 15.

[0072] 16, the folded-back portions 13e, 14e may be bound by a bundling crimping ring 33 in contact with the outer circumferential surfaces of the outer insulating coatings 13d, 14d. In this way, the number of parts can be reduced, for example, compared to a configuration in which an underlay ring 15 is provided on the inside of the folded-back portions 13e, 14e.

[0073] In the above embodiment, the spacer portions 24, 54 have the arc portions 24a, 54a that follow the outer periphery of the second shielded electric wires 13, 14. However, this is not limited to this, and the spacer portions 24a, 54a may not be provided.

[0074] In the above embodiment, the second electromagnetic shield members 13c, 14c have the folded-back portions 13e, 14e arranged to cover the outer peripheries of the outer insulating coatings 13d, 14d, but the present invention is not limited to this and may have a configuration without the folded-back portions 13e, 14e. In this case, for example, the second electromagnetic shield members 13c, 14c may be bound together with the shield connecting member 31 by the bundling crimping ring 33 in a state of contact with the outer peripheries of the inner insulating coatings 13b, 14b.

[0075] In the above embodiment, the resin case 21, 51 has the band regulating portion 24b, 54b that can engage with the bundling crimping ring 33, but this is not limited thereto, and the resin case 21, 51 may have a configuration that does not have the band regulating portion 24b, 54b. In addition, the position, shape, and number of the band regulating portion 24b, 54b may be changed as long as the band regulating portion 24b, 54b can regulate the displacement of the bundling crimping ring 33 along the longitudinal direction of the second shielded electric wires 13, 14.

[0076] In the above embodiment, the resin case 21, 51 has the first separate case 22, 52 and the second separate case 23, 53, but is not limited to this and may be changed to a resin case in which the first separate section and the second separate section are integrally molded via a thin hinge section. Also, the resin case 21, 51 may be composed of three or more separate cases.

[0077] In the above embodiment, the wire harness 11 includes one first shielded electric wire 12 and two second shielded electric wires 13, 14, but is not limited to this, and the number of the first shielded electric wires 12 and the second shielded electric wires 13, 14 may be changed. Also, for example, a configuration may be provided in which a plurality of second shielded electric wires 13, 14 extend in the same direction from the connection portions 16, 43, but a first shielded electric wire 12 extending in the opposite direction to the plurality of second shielded electric wires 13, 14 is not included.

[0078] In the above embodiment, the first electromagnetic shield member 12c and the second electromagnetic shield member 13c, 14c are braided wires in which wires are woven into a tubular shape. However, the present invention is not limited to this. For example, the first electromagnetic shield member 12c and the second electromagnetic shield member 13c, 14c may be made of metal foil made of an aluminum alloy or the like.

[0079] In the above embodiment, the shield connecting member 31 is a braided wire in which element wires are woven into a cylindrical shape, but the present invention is not limited to this and may be, for example, a metal foil made of an aluminum alloy or the like. The shield connecting member 31 may be configured so as to be able to be disposed from the outside of the resin case 21, 51. For example, the shield connecting member 31 may be a braided wire in which element wires are woven into a sheet shape, and may be disposed so as to cover the outer periphery of the resin case 21, 51 by being wrapped around the resin case 21, 51 from the outside of the resin case 21, 51.

[0080] In the above embodiment, the cable tie is the metallic tubular cable tie ring 33, but other cable ties may be used as long as they can bind and connect the second electromagnetic shield members 13c, 14c and the shield connecting member 31 together. For example, a resin cable tie that can bind a plurality of second electromagnetic shield members 13c, 14c and the shield connecting member 31 together may be used.

[0081] (Reference example) The resin cases 21, 51 may have the band restricting portions 24b, 54b engageable with the bundling crimping ring 33, but may not have the spacer portions 24, 54 for suppressing deformation of the second shielded electric wires 13, 14.

[0082] The technical ideas that can be understood from the above will be described below. (i) A wire harness comprising: a plurality of shielded electric wires each having a core wire and an electromagnetic shielding member covering an outer periphery of the core wire; a connection portion at which the core wires are connected; a resin case covering the outer periphery of the connection portion; a shield connecting member covering the outer periphery of the resin case and connecting the plurality of electromagnetic shielding members; and a cable tie bundling the plurality of shielded electric wires and bundling and connecting the electromagnetic shielding member of each of the plurality of shielded electric wires and the shield connecting member, wherein the resin case has a band restricting portion engageable with the cable tie to restrict misalignment of the cable tie along a longitudinal direction of the shielded electric wires.

[0083] According to this configuration, the electromagnetic radiation from the periphery of the connection portion is suppressed by covering the connection portion with the shield connecting member. In addition, since the multiple electromagnetic shield members are connected together to the shield connecting member with a cable tie, the number of parts can be reduced compared to, for example, a configuration in which the multiple electromagnetic shield members are each connected to the shield connecting member with multiple cable ties or the like. In addition, since the band restricting portion restricts the cable tie from shifting along the longitudinal direction of the shielded electric wire, the connection state between the multiple electromagnetic shield members and the shield connecting member can be stably maintained. In addition, since the band restricting portion is provided in the resin case, the number of parts can be reduced compared to, for example, a case in which the band restricting portion is provided separately from the resin case.

[0084] That is, a configuration in which the electromagnetic shielding members are simply connected directly to each other on the outside of the connection portion has the problem that it is difficult to adequately cover the entire periphery of the connection portion while providing a good connection.In contrast, a simple configuration can stably maintain the connection state of the electromagnetic shielding members while effectively suppressing the radiation of electromagnetic waves from around the connection portion. [Explanation of symbols]

[0085] 11 Wire Harness 12 First shielded wire (shielded wire) 12a 1st core wire (core wire) 12b Inner insulation coating 12c First electromagnetic shielding member (electromagnetic shielding member) 12d Outer insulation coating 12e Folded part 13 Second shielded wire (shielded wire) 13a 2nd core wire (core wire) 13b Inner insulation coating 13c Second electromagnetic shielding member (electromagnetic shielding member) 13d Outer insulation coating 13e Folded part 14 Second shielded wire (shielded wire) 14a 2nd core wire (core wire) 14b Inner insulation coating 14c Second electromagnetic shielding member (electromagnetic shielding member) 14d Outer insulation coating 14e Folded part 15 Underlay Ring 16 Connection 21 Resin case 22 First Separate Case 22a Semicircular opening 22b Semicircular opening 22c Semicircular opening 22d Locking part 22e Locking part 22f First split spacer part 23 Second split case 23a Semicircular opening 23b Semicircular opening 23c Semicircular opening 23d Locking part 23e Locking part 23f Second split spacer part 24 Spacer part 24a Arc section 24b Band Regulation Section 31 Shield connecting member 32 Crimping ring 33 Cable tie crimp ring (cable tie) 33a Semicircular arc section 33b Connection part 34 Waterproofing materials 41 Wire Harness 42 Connection terminal 43 Connection 51 Resin case 52 First Separate Case 52a Semicircular opening 52b Semicircular opening 52c Semicircular opening 52d through hole 52e Intermediate locking part 52f Positioning recess 52g First split spacer part 53 Second split case 53a Semicircular opening 53b Semicircular opening 53c Semicircular opening 53d through hole 53e Intermediate locking part 53f Positioning protrusion 53g Second split spacer part 54 Spacer part 54a Arc section 54b Band Regulation Section 61 Waterproofing material for connection

Claims

1. A plurality of shielded electric wires each having a core wire and an electromagnetic shielding member covering an outer periphery of the core wire; a connection portion at which the core wires are connected to each other; A resin case covering an outer periphery of the connection portion; a shield connecting member that covers an outer periphery of the resin case and to which the electromagnetic shield members are connected; a cable tie that ties together and connects the electromagnetic shielding members and the shield connecting members of the plurality of shielded electric wires while bundling the plurality of shielded electric wires, the resin case has a spacer portion that is interposed between the plurality of shielded electric wires inside the cable tie to suppress deformation of the plurality of shielded electric wires. Wire harness.

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

3. The shielded wire has an outer insulating coating that covers an outer periphery of the electromagnetic shield member, the electromagnetic shield member has a folded-back portion that is folded back from the inside to the outside of the outer insulating coating and is arranged to cover an outer periphery of the outer insulating coating, The cable tie ties together the folded-back portion and the shield connecting member. The wire harness according to claim 1 .

4. an underlay ring disposed between the outer insulating coating and the folded-back portion; The wire harness according to claim 3.

5. The folded portion is bound by the binding band in a state of contacting an outer peripheral surface of the outer insulating coating. The wire harness according to claim 3.

6. The resin case has a band restricting portion that is engageable with the cable tie so as to restrict a shift of the cable tie along a longitudinal direction of the shielded electric wire. The wire harness according to claim 1 .

7. the resin case has a first separate case and a second separate case that are assembled to sandwich the connection portion, The wire harness according to claim 1 .

8. The first separate case and the second separate case have the same shape. The wire harness according to claim 7.

9. The first separate case and the second separate case have locking portions for locking each other on both sides in a width direction in which the plurality of shielded electric wires bundled by the cable tie are arranged. The wire harness according to claim 7.

10. the first separate case and the second separate case have intermediate locking portions that lock the first separate case and the second separate case to each other between the plurality of shielded electric wires bundled by the cable tie; The wire harness according to claim 7.

11. the plurality of shielded electric wires include a first shielded electric wire and a second shielded electric wire extending in opposite directions from each other with the connection portion as a base point; At least one of the first shielded electric wire and the second shielded electric wire is provided in plurality, and the one of the first shielded electric wire and the second shielded electric wire is bundled by the cable tie. The wire harness according to claim 1 .

12. a waterproof member that collectively covers the resin case, the electromagnetic shield member, the shield connecting member, and the cable tie; The wire harness according to claim 1 .

13. a connection portion waterproofing member for covering the connection portion within the resin case, The shield connection member and the cable tie are exposed. The wire harness according to claim 1 .

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