Wire harness

Abstract

According to one aspect, the present disclosure provides a wire harness that can improve assembly workability. A first shielded wire (11) and second shielded wires (12) included in a wire harness (10) respectively include core wires (11a, 12a), insulation coatings (11b, 12b) covering the outer peripheries of the core wires, and shield members (11c, 12c) covering the outer peripheries of the insulation coatings. The wire harness (10) is provided with: a core wire connection part (15) in which the core wires (11a, 12a) are connected to each other; and an insulation member (20) that covers the outer periphery of the core wire connection part. The wire harness (10) is provided with: a conductive case (30) that covers the outer periphery of the insulation member (20) and covers the outer peripheries of the first shielded wire (11) and the second shielded wires (12); and adhesives (60) that seal between the case and the first shielded wire (11) and between the case and the second shielded wires (12). The case (30) has connection parts (34, 38) that are electrically connected to the plurality of shield members (11c, 12c), respectively.

Description

Wire harness

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

[0002] Conventionally, there has been a wire harness that includes multiple shielded electric wires, each having a core wire and a shielding member covering the outer periphery of the core wire, a connection portion where the core wires are connected to each other, and an insulating member covering the outer periphery of the connection portion (see, for example, Patent Document 1). This type of wire harness includes an electromagnetic shield pipe that covers the outer periphery of the insulating member and has multiple shielding members connected to its outer surface, and a waterproof member that covers the outer periphery of the electromagnetic shield pipe. The waterproof member includes a resin pipe that covers the outer periphery of the electromagnetic shield pipe and a rubber plug that seals the gap between the inner periphery of the resin pipe and the outer periphery of the shielded electric wire.

[0003] Japanese Patent Application Laid-Open No. 2021-106210

[0004] However, in the above-mentioned wire harness, improvement in assembly workability is desired. An object of the present disclosure is to provide a wire harness that can improve assembly workability.

[0005] A wire harness according to the present disclosure is a wire harness including a plurality of shielded electric wires, each of which has a core wire, an insulating coating covering the outer periphery of the core wire, and a shielding member covering the outer periphery of the insulating coating. The wire harness includes a core wire connection portion at which the core wires of the plurality of shielded electric wires are connected to each other, an insulating member covering the outer periphery of the core wire connection portion, a conductive case covering the outer periphery of the insulating member and the outer periphery of the plurality of shielded electric wires, and a sealing member that seals between the case and the plurality of shielded electric wires, and the case has a connection portion electrically connected to each of the plurality of shielding members.

[0006] The wire harness of the present disclosure has an effect of improving assembly workability.

[0007] FIG. 1 is a perspective view showing a wire harness of an embodiment. FIG. 2 is a cross-sectional view showing the wire harness of an embodiment. FIG. 3 is a cross-sectional view showing the wire harness of an embodiment (cross-sectional view taken along line 3-3 in FIG. 2). FIG. 4 is a cross-sectional view showing the wire harness of an embodiment (cross-sectional view taken along line 4-4 in FIG. 2). FIG. 5 is an exploded perspective view showing the wire harness of an embodiment. FIG. 6 is a plan view showing a manufacturing method of the wire harness of an embodiment. FIG. 7 is a plan view showing a manufacturing method of the wire harness of an embodiment. FIG. 8 is a perspective view showing a manufacturing method of the wire harness of an embodiment. FIG. 9 is a perspective view showing a manufacturing method of the wire harness of an embodiment. FIG. 10 is a perspective view showing a manufacturing method of the wire harness of an embodiment.

[0008] [Description of Embodiments of the Present Disclosure] First, embodiments of the present disclosure will be listed and described. [1] A wire harness of the present disclosure is a wire harness including a plurality of shielded electric wires, each of the plurality of shielded electric wires having a core wire, an insulating coating covering an outer periphery of the core wire, and a shielding member covering the outer periphery of the insulating coating, the wire harness including a core wire connection portion at which the core wires of the plurality of shielded electric wires are connected to each other, an insulating member covering the outer periphery of the core wire connection portion, a conductive case covering the outer periphery of the insulating member and covering the outer periphery of the plurality of shielded electric wires, and a sealing member that seals between the case and the plurality of shielded electric wires, the case having a connection portion electrically connected to each of the plurality of shielding members.

[0009] According to this configuration, the outer periphery of the core wire connection portion is covered with a conductive case, and the case is electrically connected to each of the multiple shielding members. This allows the case to function as an electromagnetic shielding member that suppresses radiation of electromagnetic waves (electromagnetic noise) from the core wire connection portion. Furthermore, the sealing member seals between the case and the multiple shielded electric wires. This allows the case and the sealing member to function as waterproofing members that suppress water exposure to the core wire connection portion. In this way, the case can function as both an electromagnetic shielding member and a waterproofing member. Therefore, the number of parts in the wire harness can be reduced compared to when the electromagnetic shielding member and the waterproofing member are configured as separate parts. As a result, the number of assembly steps for the wire harness can be reduced, thereby improving the assembly workability of the wire harness.

[0010] [2] In the above [1], the case may have a plurality of divided bodies formed so as to be able to be combined with each other, and a fixing member that fixes the plurality of divided bodies in a combined state, and the case may be formed into a cylindrical shape that surrounds the outer periphery of the insulating member and the outer periphery of the plurality of shielded electric wires by combining the plurality of divided bodies.

[0011] According to this configuration, the case is formed into a cylindrical shape with the plurality of divided bodies surrounding the outer periphery of the insulating member and the outer periphery of the plurality of shielded electric wires. As a result, while the case is cylindrical, the case is divided into the plurality of divided bodies, so that the case can be retrofitted to the shielded electric wires. Therefore, the ease of assembling the case to the shielded electric wires can be improved, and the ease of assembling the wire harness can be improved.

[0012] [3] In the above [2], the plurality of divided bodies may include a first divided body and a second divided body formed to be combineable with the first divided body, the first divided body having a first overlapping portion protruding radially outward from a circumferential end of the first divided body, the second divided body having a second overlapping portion protruding radially outward from a circumferential end of the second divided body, the first overlapping portion having a first opposing surface facing the second overlapping portion and a first chamfered portion formed at the radially outer end of the first opposing surface, the second overlapping portion having a second opposing surface overlapping with the first opposing surface and a second chamfered portion formed at the radially outer end of the second opposing surface, the case having a groove formed by the first chamfered portion and the second chamfered portion, the wire harness having an adhesive filled in the groove, and the adhesive may constitute the sealing member.

[0013] With this configuration, when the first and second segments are joined together, the first opposing surface of the first segment and the second opposing surface of the second segment are overlapped, and a groove is formed by the first chamfered portion of the first segment and the second chamfered portion of the second segment. The adhesive filled in the groove can then effectively seal the first and second opposing surfaces.

[0014] [4] In the above [3], the adhesive may constitute the sealing member and the fixing member. According to this configuration, the adhesive functions as a sealing member that seals between the case and the shielded wire, and also functions as a fixing member that fixes the multiple divided bodies in a combined state. Therefore, the number of parts of the wire harness can be reduced compared to when the sealing member and the fixing member are separate parts.

[0015] [5] In the above [3] or [4], the first divided body and the second divided body may have the same structure. With this configuration, the first divided body and the second divided body that constitute the case are formed to have the same structure, which makes it possible to suppress an increase in the number of parts, more specifically, the number of types of parts.

[0016] [6] In any of the above [1] to [5], each of the plurality of shielded electric wires may further have a sheath covering an outer periphery of the shielding member, an end of the shielding member may have an exposed portion that is exposed from the end of the sheath and is folded back to surround the outer periphery of the end of the sheath, and the connecting portion may be formed in a tubular shape that surrounds the outer periphery of the exposed portion, and the inner surface of the connecting portion may be in contact with the outer periphery of the exposed portion.

[0017] According to this configuration, the inner circumferential surface of the cylindrical connecting portion and the outer circumferential surface of the exposed portion are brought into contact with each other, thereby electrically connecting the case and the shielding member to each other. [7] In the above [6], an interference may be provided between the inner periphery of the connecting portion and the outer periphery of the exposed portion.

[0018] According to this configuration, the exposed portion of the shielded electric wire is fitted into the inner periphery of the tubular connecting portion with an interference fit. That is, when the shielded electric wire is fitted into the connecting portion, the outer periphery of the exposed portion and the inner periphery of the connecting portion come into contact with an interference fit. As a result, the exposed portion of the shielded electric wire fitted into the connecting portion is constantly pressed radially inward by the connecting portion and comes into contact with the inner periphery of the connecting portion. This allows the inner periphery of the connecting portion and the outer periphery of the exposed portion to be in good contact with each other. This improves the reliability of the electrical connection between the case and the shielding member.

[0019] [8] In the above [6] or [7], the device may further include a base ring provided between the outer peripheral surface of the sheath and the inner peripheral surface of the exposed portion, and the exposed portion may be connected to the connecting portion while being sandwiched between the base ring and the connecting portion.

[0020] With this configuration, the exposed portion is connected to the connecting portion while being sandwiched between the underlay ring and the connecting portion, which allows for good contact between the inner circumferential surface of the connecting portion and the outer circumferential surface of the exposed portion, thereby improving the reliability of the electrical connection between the case and the shielding member.

[0021] [9] In any of the above [1] to [8], the plurality of shielded electric wires may include one or more first shielded electric wires and two or more second shielded electric wires, the one or more first shielded electric wires and the two or more second shielded electric wires extending in opposite directions from each other with the core wire connection portion as a base point, the case may include a first accommodating portion that accommodates the one or more first shielded electric wires, a second accommodating portion that accommodates the two or more second shielded electric wires, and a third accommodating portion that accommodates the insulating member, and the second accommodating portion may include two or more accommodating tube portions that individually accommodate the two or more second shielded electric wires, and a partition wall provided between adjacent accommodating tube portions.

[0022] According to this configuration, the first shielded electric wire is accommodated in the first housing portion of the case, the second shielded electric wire is accommodated in each of the housing cylindrical portions of the second housing portion, and the insulating member is accommodated in the third housing portion.

[10] In any of the above [1] to [9], the case may be made of aluminum die-cast.

[0023] This configuration allows for easy manufacture of a conductive case. [Details of the Embodiments of the Present Disclosure] Specific examples of wire harnesses of the present disclosure will be described below with reference to the drawings. For ease of explanation, some components may be exaggerated or simplified in the drawings. The dimensional ratios of the components may differ between the drawings. In this specification, "orthogonal" and "parallel" do not only refer to strictly orthogonal or parallel connections, but also include approximately orthogonal or parallel connections within the scope of the present embodiment's effects. In this specification, "same" refers not only to connections that are exactly the same, but also to connections that have slight differences between comparison objects due to dimensional tolerances, etc. The term "cylindrical" as used in this specification does not only refer to connections formed by a continuous peripheral wall around the entire circumference, but also includes connections formed by combining multiple components and connections with a notch in the circumferential direction, such as a C-shape or U-shape. The "cylindrical" shape includes, but is not limited to, circular, elliptical, and polygonal shapes with pointed or rounded corners. Furthermore, terms such as "first," "second," and "third" in this specification are used merely to distinguish between objects and do not rank the objects. Each drawing illustrates mutually orthogonal X, Y, and Z axes. Each drawing illustrates a first direction X1, which is one direction in the X-axis direction along the X-axis, and a first opposite direction X2, which is the opposite direction of the first direction X1. Each drawing illustrates a second direction Y1, which is one direction in the Y-axis direction along the Y-axis, and a second opposite direction Y2, which is the opposite direction of the second direction Y1. Each drawing illustrates a third direction Z1, which is one direction in the Z-axis direction along the Z-axis, and a third opposite direction Z2, which is the opposite direction of the third direction Z1. Note that the present invention is not limited to these examples, but is defined by the claims, and all modifications within the meaning and scope equivalent to the claims are intended to be included.

[0024] 1 and 2 , the wire harness 10 includes one first shielded electric wire 11 and two or more (two in this embodiment) second shielded electric wires 12. As shown in Fig. 2 , the wire harness 10 includes a core wire connecting portion 15, an insulating member 20 covering the outer periphery of the core wire connecting portion 15, a conductive case 30 covering the outer periphery of the insulating member 20, and an adhesive 60.

[0025] (Configuration of First Shielded Electric Wire 11 and Second Shielded Electric Wire 12) The first shielded electric wire 11 has a core wire 11a and an insulating coating 11b that covers the outer periphery of the core wire 11a. The first shielded electric wire 11 has a shielding member 11c that covers the outer periphery of the insulating coating 11b, and a sheath 11d that covers the outer periphery of the shielding member 11c. The cross-sectional shape of the core wire 11a is, for example, circular.

[0026] Each second shielded electric wire 12 has a core wire 12 a and an insulating coating 12 b that covers the outer periphery of the core wire 12 a. Each second shielded electric wire 12 has a shield member 12 c that covers the outer periphery of the insulating coating 12 b, and a sheath 12 d that covers the outer periphery of the shield member 12 c. The cross-sectional shape of the core wire 12 a is, for example, circular.

[0027] The shielding members 11c and 12c suppress radiation of electromagnetic waves from the core wires 11a and 12a. The shielding members 11c and 12c are braided wires in which conductive wires such as copper alloys and aluminum alloys are braided into a cylindrical shape. In each drawing, the shape and appearance of the braided wire in the shielding members 11c and 12c are appropriately illustrated in a schematic manner.

[0028] At the ends of the first shielded electric wire 11 and each second shielded electric wire 12, the core wires 11a, 12a are exposed to the outside. At the ends of the first shielded electric wire 11 and each second shielded electric wire 12, the shielding members 11c, 12c are exposed to the outside. The end of the shielding member 11c is exposed from the end of the sheath 11d and has an exposed portion 11e folded back to surround the outer periphery of the end of the sheath 11d. The exposed portion 11e is folded back from the inside to the outside of the sheath 11d to cover the outer periphery of the sheath 11d. The end of each shielding member 12c is exposed from the end of the sheath 12d and has an exposed portion 12e folded back to surround the outer periphery of the end of the sheath 12d. The exposed portion 12e is folded back from the inside to the outside of the sheath 12d to cover the outer periphery of the sheath 12d.

[0029] First, the sheaths 11d, 12d are stripped from the ends of the first shielded electric wire 11 and each second shielded electric wire 12. This exposes the ends of the shielding members 11c, 12c from the sheaths 11d, 12d. Next, the ends of the shielding members 11c, 12c are folded back so as to surround the outer peripheries of the sheaths 11d, 12d. This forms exposed portions 11e, 12e at the ends of the shielding members 11c, 12c that are exposed from the sheaths 11d, 12d and folded back so as to surround the outer peripheries of the sheaths 11d, 12d. Next, the insulating coatings 11b, 12b are stripped from the ends of the first shielded electric wire 11 and the second shielded electric wire 12. This exposes the core wires 11a, 12a from the insulating coatings 11b, 12b.

[0030] The wire harness 10 includes, for example, an underlying ring 13 provided between the sheaths 11d, 12d and the exposed portions 11e, 12e. The underlying ring 13 is made of, for example, metal. The underlying ring 13 is formed, for example, in a cylindrical shape surrounding the outer periphery of the sheaths 11d, 12d. The underlying ring 13 is disposed on the outer periphery of the sheaths 11d, 12d when the ends of the shield members 11c, 12c are folded back, for example.

[0031] The core wire connection portion 15 is configured by connecting one core wire 11 a and two core wires 12 a. In the core wire connection portion 15 of the present embodiment, the one core wire 11 a and the two core wires 12 a are directly welded to each other. The one first shield electric wire 11 and the two second shield electric wires 12 extend in opposite directions from the core wire connection portion 15. More specifically, from the core wire connection portion 15 as a base point, the one first shield electric wire 11 extends in a first direction X1, and the two second shield electric wires 12 extend in a first opposite direction X2. In other words, in the wire harness 10, the one first shield electric wire 11 branches into two second shield electric wires 12 at a middle portion in the longitudinal direction (here, the X-axis direction) of the wire harness 10. The wire harness 10 electrically connects, for example, a battery connected to the core wire 11 a of the first shielded electric wire 11 and electrical devices connected to the core wires 12 a of the two second shielded electric wires 12 .

[0032] (Configuration of the insulating member 20) The insulating member 20 is formed in a cylindrical shape as a whole. The insulating member 20 covers the outer periphery of the core wire connection portion 15 over the entire circumferential direction. The insulating member 20 covers the outer periphery of the core wire 11a exposed from the insulating coating 11b and the outer periphery of the core wire 12a exposed from the insulating coating 12b. The insulating member 20 is formed, for example, to bridge between the end of the insulating coating 11b and the ends of the two insulating coatings 12b. For example, the end of the insulating member 20 in the first direction X1 covers the outer periphery of the end of the insulating coating 11b, and the end of the insulating member 20 in the first opposite direction X2 covers the outer periphery of the ends of the two insulating coatings 12b. The end of the insulating member 20 in the first opposite direction X2 is formed to collectively cover both insulating coatings 12b. The end of the insulating member 20 in the first opposite direction X2, i.e., the portion of the insulating member 20 covering the two insulating coatings 12b, has a larger dimension along the second direction Y1 than the portion of the insulating member 20 covering one insulating coating 11b. The insulating member 20 has a function of maintaining electrical insulation between the core wire connection portion 15 and the core wires 11a, 12a exposed from the insulating coatings 11b, 12b, for example.

[0033] The insulating member 20 may be, for example, a shrinkable tube, a rubber tube, a resin mold, a hot melt adhesive, or a tape. The insulating member 20 in this embodiment is a heat-shrinkable tube. The insulating member 20, which is a heat-shrinkable tube, is formed into a cylindrical shape from an insulating resin material that shrinks when heated and hardens when cooled. The insulating member 20, which is a heat-shrinkable tube, shrinks toward the inner member when heated and cooled.

[0034] (Configuration of the case 30) The case 30 is formed to surround the outer periphery of the insulating member 20, the outer periphery of the first shielded electric wire 11, and the outer periphery of the second shielded electric wire 12. The case 30 is formed, for example, in a cylindrical shape as a whole. The case 30 is open, for example, in the first direction X1 and in the first opposite direction X2. The case 30 is made of, for example, metal. For example, a copper-based or aluminum-based metal material can be used as the material of the case 30. The case 30 of this embodiment is made of aluminum die-cast.

[0035] The case 30 has a first accommodating section 31 that accommodates one first shielded electric wire 11, a second accommodating section 32 that accommodates two second shielded electric wires 12, and a third accommodating section 33 that accommodates the core wire connecting section 15 and the insulating member 20. In the case 30, the first accommodating section 31, the third accommodating section 33, and the second accommodating section 32 are arranged side by side along the X-axis direction. In the case 30, the internal space of the first accommodating section 31, the internal space of the third accommodating section 33, and the internal space of the second accommodating section 32 are in communication with one another.

[0036] (Configuration of first accommodating portion 31) The first accommodating portion 31 extends along the first direction X1. The first accommodating portion 31 is provided at the end of the case 30 in the first direction X1. The first accommodating portion 31 is formed to accommodate a part of the first shielded electric wire 11. The first accommodating portion 31 is formed to a size that can accommodate the end of the first shielded electric wire 11 in the first opposite direction X2. The first accommodating portion 31 is formed in a cylindrical shape as a whole. The first accommodating portion 31 surrounds the outer periphery of the first shielded electric wire 11 over the entire circumferential direction.

[0037] The first housing portion 31 has a connection portion 34 electrically connected to the shield member 11c. The connection portion 34 is electrically connected to the exposed portion 11e of the shield member 11c. As shown in FIG. 3 , the connection portion 34 is formed in a cylindrical shape as a whole. The connection portion 34 surrounds the outer periphery of the exposed portion 11e over the entire circumferential direction. The connection portion 34 is formed so that its inner circumferential surface contacts the outer circumferential surface of the exposed portion 11e. By bringing the inner circumferential surface of the connection portion 34 into contact with the outer circumferential surface of the exposed portion 11e in this manner, the connection portion 34 and the shield member 11c are electrically connected. The inner circumferential surface of the connection portion 34 is formed, for example, as a smooth surface.

[0038] For example, an interference is provided between the inner periphery of the connection portion 34 and the outer periphery of the exposed portion 11e. For example, the minimum inner diameter of the connection portion 34 is set smaller than the maximum outer diameter of the exposed portion 11e before being inserted into the connection portion 34. By setting the minimum inner diameter of the connection portion 34 in this manner, the exposed portion 11e of the first shielded electric wire 11 is fitted into the inner periphery of the connection portion 34 with an interference. As a result, the inner periphery of the connection portion 34 and the outer periphery of the exposed portion 11e come into contact with each other with an interference. That is, the exposed portion 11e fitted into the connection portion 34 is constantly pressed radially inward by the inner periphery of the connection portion 34 and maintained in a state where it is pressed against the connection portion 34. This allows the inner periphery of the connection portion 34 to be in favorable contact with the outer periphery of the exposed portion 11e. In this embodiment, the exposed portion 11e is pressed against the connection portion 34, and is connected to the connection portion 34 while being sandwiched between the connection portion 34 and the underlay ring 13. Furthermore, rattle of the first shielded wire 11 inside the connecting portion 34 can be suppressed.

[0039] As shown in Fig. 2, an inclined surface 35 is formed on the inner circumferential surface at the end portion in the first direction X1 of the first accommodating portion 31. The inclined surface 35 is formed so as to incline radially outward of the first accommodating portion 31 as it approaches the open end of the first accommodating portion 31 in the first direction X1. The inclined surface 35 is formed, for example, in a shape in which a corner between the inner circumferential surface of the first accommodating portion 31 and the end face of the first accommodating portion 31 in the first direction X1 is C-chamfered. The inclined surface 35 is formed, for example, around the entire circumferential circumference of the inner circumferential surface of the first accommodating portion 31.

[0040] (Configuration of the Second Accommodating Section 32) The second accommodating section 32 extends along the first direction X1. The second accommodating section 32 is provided at the end of the case 30 in the first opposite direction X2. The second accommodating section 32 has two accommodating tube sections 36 that individually accommodate two second shielded electric wires 12 and a partition wall 37 that separates the two accommodating tube sections 36. Each accommodating tube section 36 is formed to accommodate a portion of the second shielded electric wire 12. Each accommodating tube section 36 is formed to have a size that allows it to accommodate the end of the second shielded electric wire 12 in the first direction X1. Each accommodating tube section 36 is formed in a cylindrical shape as a whole. Each accommodating tube section 36 surrounds the outer periphery of the second shielded electric wire 12 over the entire circumferential direction. The partition wall 37 is provided between the two accommodating tube sections 36 in the second direction Y1. The partition wall 37 is formed to separate the internal spaces of the two accommodating tube sections 36.

[0041] Each housing cylindrical portion 36 has a connecting portion 38 electrically connected to the shield member 12c. The connecting portion 38 is electrically connected to the exposed portion 12e of the shield member 12c. As shown in FIG. 4 , the connecting portion 38 is formed in a cylindrical shape as a whole. The connecting portion 38 surrounds the outer periphery of the exposed portion 12e over the entire circumferential direction. The connecting portion 38 is formed so that its inner circumferential surface contacts the outer circumferential surface of the exposed portion 12e. By bringing the inner circumferential surface of the connecting portion 38 into contact with the outer circumferential surface of the exposed portion 12e in this manner, the connecting portion 38 and the shield member 12c are electrically connected. The inner circumferential surface of the connecting portion 38 is formed, for example, as a smooth surface.

[0042] For example, an interference is provided between the inner periphery of the connection portion 38 and the outer periphery of the exposed portion 12e. For example, the minimum inner diameter of the connection portion 38 is set smaller than the maximum outer diameter of the exposed portion 12e before being inserted into the connection portion 38. By setting the minimum inner diameter of the connection portion 38 in this manner, the exposed portion 12e of the second shielded electric wire 12 is fitted to the inner periphery of the connection portion 38 with an interference. As a result, the inner periphery of the connection portion 38 and the outer periphery of the exposed portion 12e come into contact with each other with an interference. That is, the exposed portion 12e fitted into the connection portion 38 is constantly pressed radially inward by the inner periphery of the connection portion 38 and maintained in a state where it is pressed against the connection portion 38. This allows the inner periphery of the connection portion 38 to be in favorable contact with the outer periphery of the exposed portion 12e. In this embodiment, the exposed portion 12e is pressed against the connection portion 38 and is connected to the connection portion 38 while being sandwiched between the connection portion 38 and the underlay ring 13. Furthermore, rattle of the second shielded wire 12 inside the connecting portion 38 can be suppressed.

[0043] 2 , each accommodating tube portion 36 has, for example, an engagement wall 39. The engagement wall 39 is formed, for example, so as to protrude radially inward of the accommodating tube portion 36 beyond the inner circumferential surface of the connection portion 38. The engagement wall 39 is provided at the end of the accommodating tube portion 36 in the first opposite direction X2. The engagement wall 39 is formed so as to be able to engage with the exposed portion 12 e of the second shielded electric wire 12 in the axial direction of the accommodating tube portion 36. The engagement wall 39 is formed, for example, around the entire circumferential circumference of the inner circumferential surface of the accommodating tube portion 36.

[0044] An inclined surface 40 is formed on the inner circumferential surface of each housing tube portion 36 at the end portion in the first opposite direction X2. The inclined surface 40 is provided in the first opposite direction X2 further from the engagement wall 39. The inclined surface 40 is formed so as to incline radially outward from the housing tube portion 36 as it approaches the open end of the housing tube portion 36 in the first opposite direction X2. The inclined surface 40 is formed, for example, in a shape obtained by chamfering a corner between the inner circumferential surface of the housing tube portion 36 (specifically, the inner circumferential surface of the engagement wall 39) and the end face of the housing tube portion 36 in the first opposite direction X2. The inclined surface 40 is formed, for example, around the entire circumferential circumference of the inner circumferential surface of the housing tube portion 36.

[0045] (Configuration of third housing portion 33) The third housing portion 33 extends along the first direction X1. The third housing portion 33 is provided between the first housing portion 31 and the second housing portion 32 in the axial direction of the case 30 (in the present embodiment, the X-axis direction). The third housing portion 33 has a first housing cylindrical portion 41 and a second housing cylindrical portion 42.

[0046] The first accommodating cylindrical portion 41 accommodates the portion of the insulating member 20 that covers one insulating coating 11b. The first accommodating cylindrical portion 41 accommodates the portion of the insulating member 20 that covers the core wire connecting portion 15. The second accommodating cylindrical portion 42 accommodates the portion of the insulating member 20 that covers two insulating coatings 12b. The first accommodating cylindrical portion 41 and the second accommodating cylindrical portion 42 are formed in a cylindrical shape as a whole. The first accommodating cylindrical portion 41 and the second accommodating cylindrical portion 42 surround the outer periphery of the insulating member 20 over the entire circumferential direction.

[0047] The third accommodating portion 33 has, for example, an engagement surface 43. The engagement surface 43 is provided so as to be engageable in the first direction X1 with the portion of the insulating member 20 covering the two insulating coatings 12b. Here, the dimension of the internal space of the first accommodating tube portion 41 along the second direction Y1 is smaller than the dimension of the internal space of the second accommodating tube portion 42 along the second direction Y1. As a result, a step is formed on the inner circumferential surface of the third accommodating portion 33 at the boundary between the first accommodating tube portion 41 and the second accommodating tube portion 42. The engagement surface 43 is formed by the surface of the inner circumferential surface of the first accommodating tube portion 41 facing the first opposite direction X2. In other words, the internal space of the first accommodating tube portion 41 is sized so that the portion of the insulating member 20 covering the two insulating coatings 12b cannot be inserted therein.

[0048] As shown in FIG. 5 , the case 30 has a first divided body 51 and a second divided body 52 that can be combined with the first divided body 51. The case 30 is configured by combining the first divided body 51 and the second divided body 52. ​​By combining the first divided body 51 and the second divided body 52, the case 30 is formed into a cylindrical shape that surrounds the outer periphery of the first shielded electric wire 11, the outer periphery of the second shielded electric wire 12, and the outer periphery of the insulating member 20. The first divided body 51 and the second divided body 52 are, for example, separate parts. The first divided body 51 and the second divided body 52 have the same structure. In other words, the first divided body 51 and the second divided body 52 are parts with the same product number. Therefore, in the following description, the structure of the first divided body 51 will be described in detail, and a description of the structure of the second divided body 52 will be omitted. Specifically, the structure of the second divided body 52 will be described by using a symbol with the corresponding component of the first divided body 51, with the suffix "A" changed to "B," thereby avoiding redundant explanation.

[0049] The first divided body 51 is formed, for example, in a semi-cylindrical shape as a whole. The first divided body 51 has, for example, a first divided housing section 31A, a second divided housing section 32A, and a third divided housing section 33A. The second divided body 52 is formed, for example, in a semi-cylindrical shape as a whole. The second divided body 52 has, for example, a first divided housing section 31B, a second divided housing section 32B, and a third divided housing section 33B. When the first divided body 51 and the second divided body 52 are combined, the first divided housing section 31A and the first divided housing section 31B form the first housing section 31. When the first divided body 51 and the second divided body 52 are combined, the second divided housing section 32A and the second divided housing section 32B form the second housing section 32. When the first divided body 51 and the second divided body 52 are combined together, the third divided housing portion 33 is configured by the third divided housing portion 33A and the third divided housing portion 33B.

[0050] (Configuration of First Division 51) The first division 51 has, for example, a first overlapping portion 53A provided at one end of the first division 51 in the circumferential direction. The first division 51 in this embodiment has two first overlapping portions 53A. The two first overlapping portions 53A are provided at both circumferential ends of the first division 51, respectively. Each first overlapping portion 53A protrudes radially outward from the circumferential end of the first division 51. The two first overlapping portions 53A protrude in opposite directions radially of the case 30. Each first overlapping portion 53A extends, for example, along the length of the case 30 (in the X-axis direction in this embodiment). Each first overlapping portion 53A extends, for example, over the entire length of the case 30 in the length direction.

[0051] Each first overlapping portion 53A has a first opposing surface 54A facing the second divided body 52 and a first chamfered portion 55A formed on the radially outer end of the first opposing surface 54A of the case 30. The first opposing surface 54A is an end surface facing the third direction Z1. The first opposing surface 54A is formed, for example, to extend parallel to the XY plane. The first opposing surface 54A extends, for example, along the longitudinal direction of the case 30 over the entire length of the case 30.

[0052] The first chamfered portion 55A is formed, for example, in a shape obtained by C-chamfering the corner between the first opposing surface 54A and the radially outer end face of the first overlapping portion 53A. The first chamfered portion 55A is formed, for example, so as to incline toward the third opposite direction Z2 as it becomes farther away from the internal space of the case 30. The first chamfered portion 55A extends, for example, along the longitudinal direction of the case 30 over the entire length of the case 30. The first chamfered portion 55A is also formed, for example, on the end portion of the first opposing surface 54A in the longitudinal direction of the case 30.

[0053] The first section 51 has one or more (four in this embodiment) fixing portions 56A into which, for example, the bolt B1 shown in FIG. 1 is inserted. Each fixing portion 56A is provided, for example, in the first overlapping portion 53A. In the first section 51 of this embodiment, two fixing portions 56A are provided in each first overlapping portion 53A. Each fixing portion 56A has a through-hole that penetrates the first overlapping portion 53A in the thickness direction (in this embodiment, the Z-axis direction). A female thread portion that can be fastened with the bolt B1 (see FIG. 1) is formed on the inner circumferential surface of the fixing portion 56A. For example, the fixing portion 56A is formed so as to protrude in the third opposite direction Z2 from the end face of the first overlapping portion 53A in the third opposite direction Z2.

[0054] (Configuration of second divided body 52) The second divided body 52 has one or more (two in this embodiment) second overlapping portions 53B that protrude radially outward from the circumferential end of the second divided body 52. ​​Each second overlapping portion 53B has a second opposing surface 54B that faces the first opposing surface 54A, and a second chamfered portion 55B formed on the end of the second opposing surface 54B that is radially outward from the case 30. The second divided body 52 has one or more (four in this embodiment) fixing portions 56B.

[0055] As shown in FIG. 1 , the first divided body 51 and the second divided body 52 are joined together by overlapping the first overlapping portion 53A and the second overlapping portion 53B. The joined state of the first divided body 51 and the second divided body 52 of the case 30 is secured by, for example, a bolt B1. The bolt B1 is threaded into female threads provided on the inner surfaces of the fixing portions 56A and 56B, for example, and penetrates the fixing portions 56A and 56B. The joined state of the first divided body 51 and the second divided body 52 is maintained by such bolt fastening using the bolt B1.

[0056] 3, when the first divided body 51 and the second divided body 52 are combined, the first opposing surface 54A and the second opposing surface 54B are overlapped. The first opposing surface 54A and the second opposing surface 54B are overlapped with each other in a direction (in this embodiment, the Z-axis direction) perpendicular to the protruding direction of the first overlapping portion 53A (in this embodiment, the Y-axis direction). The second opposing surface 54B is in direct contact with the first opposing surface 54A. For example, the second opposing surface 54B is in surface contact with the first opposing surface 54A.

[0057] When the first divided body 51 and the second divided body 52 are combined, a groove 57 is formed by the first chamfered portion 55A and the second chamfered portion 55B. The groove 57 extends, for example, along the length direction of the case 30. The groove 57 is formed, for example, so that the opening width along the Z-axis direction increases with increasing distance from the internal space of the case 30. The planar shape of the groove 57 as viewed from the X-axis direction is, for example, triangular. The groove 57 is formed, for example, around the entire circumference of the case 30.

[0058] (Configuration of Adhesive 60) For example, a thermosetting adhesive or an ultraviolet curing adhesive can be used as the adhesive 60. The adhesive 60 of this embodiment is a thermosetting adhesive.

[0059] As shown in Fig. 2 , the adhesive 60 is formed to seal between the case 30 and the first shielded electric wire 11. Specifically, the adhesive 60 is formed to seal between the inner circumferential surface of the first accommodating portion 31 of the case 30 and the outer circumferential surface of the first shielded electric wire 11. The adhesive 60 is formed to cover the outer circumferential surface of the first shielded electric wire 11 over the entire circumferential direction, and to cover the inner circumferential surface of the first accommodating portion 31 over the entire circumferential direction. The adhesive 60 is provided at the end of the first accommodating portion 31 in the first direction X1. The adhesive 60 can effectively prevent liquids such as water from penetrating into the case 30 through a gap between the inner circumferential surface of the first accommodating portion 31 and the outer circumferential surface of the first shielded electric wire 11.

[0060] The adhesive 60 is formed to seal between the case 30 and each second shielded electric wire 12. Specifically, the adhesive 60 is formed to seal between the inner circumferential surface of each accommodating tube portion 36 of the case 30 and the outer circumferential surface of each second shielded electric wire 12. The adhesive 60 is formed to cover the outer circumferential surface of each second shielded electric wire 12 over the entire circumferential direction, and to cover the inner circumferential surface of each accommodating tube portion 36 over the entire circumferential direction. The adhesive 60 is provided at the end of each accommodating tube portion 36 in the first opposite direction X2. The adhesive 60 can effectively prevent liquids such as water from penetrating into the case 30 through gaps between the inner circumferential surface of the accommodating tube portion 36 and the outer circumferential surface of the second shielded electric wire 12.

[0061] 3 , the adhesive 60 is formed, for example, so as to fill the groove 57. The adhesive 60 is formed around the entire periphery of the groove 57. The adhesive 60 is formed, for example, inside the groove 57 so that the contact portion between the first opposing surface 54A and the second opposing surface 54B is not exposed to the outside through the groove 57. The adhesive 60 filled in the groove 57 can effectively prevent liquids such as water from entering the inside of the case 30 through the gap between the first opposing surface 54A and the second opposing surface 54B.

[0062] In this way, the adhesive 60 of this embodiment is formed continuously around the entire outer periphery of the case 30. The adhesive 60 functions as a sealing member that prevents liquids such as water from entering the internal space of the case 30 from the outside. The adhesive 60 filled in the groove 57 also functions as a fixing member that fixes the first divided body 51 and the second divided body 52 in a combined state, for example.

[0063] (Manufacturing Method of Wire Harness 10) Next, a manufacturing method of the wire harness 10 will be described. First, in the step shown in Fig. 6, the core wire 11a of one first shielded electric wire 11 and the core wires 12a of two second shielded electric wires 12 are connected to form a core wire connection portion 15. At this time, the exposed portion 11e of the first shielded electric wire 11 is folded back so as to surround the outer periphery of the sheath 11d. Furthermore, the exposed portion 12e of each second shielded electric wire 12 is folded back so as to surround the outer periphery of the sheath 12d.

[0064] 7 , an insulating member 20 is formed to cover the outer periphery of the core wire connection portion 15. For example, an unheated heat-shrinkable tube is arranged to surround the outer periphery of the core wire connection portion 15, and the heat-shrinkable tube is heated and cooled to form the insulating member 20 that covers the outer periphery of the core wire connection portion 15. Through the above steps, an electric wire structure 70 is formed in which one first shielded electric wire 11, two second shielded electric wires 12, and the insulating member 20 are integrated together.

[0065] 8, a first divided body 51 and a second divided body 52 are prepared. The first divided body 51 and the second divided body 52 can be formed, for example, by molding an aluminum alloy into a predetermined shape using a known method such as aluminum die casting.

[0066] Next, adhesive 60 is applied to the peripheral portion of the first divided body 51. The adhesive 60 is formed so as to continuously cover the entire peripheral portion of the first divided body 51. More specifically, the adhesive 60 is formed so as to continuously cover the entire peripheral portion of the first opposing surface 54A of the first divided body 51. The adhesive 60 is formed so as to cover the first opposing surface 54A located near the first chamfered portion 55A. The adhesive 60 is also formed so as to continuously cover the entire inner peripheral surface of the first divided accommodating portion 31A. For example, the adhesive 60 is formed so as to cover the inner peripheral surface of the first divided accommodating portion 31A located near the inclined surface 35. The adhesive 60 is formed so as to continuously cover the entire inner peripheral surface of the accommodating tube portion 36 of the second divided accommodating portion 32A. For example, the adhesive 60 is formed so as to cover the inner peripheral surface of the accommodating tube portion 36 of the second divided accommodating portion 32A located near the inclined surface 40. The adhesive 60 is formed so as to cover the end surface of the partition wall 37 in the third direction Z1.

[0067] 8, adhesive 60 is applied to a portion of second divided body 52. ​​Adhesive 60 is formed so as to continuously cover the entire inner circumferential surface of first divided accommodating portion 31B. For example, adhesive 60 is formed so as to cover the inner circumferential surface of first divided accommodating portion 31B located near inclined surface 35. Adhesive 60 is formed so as to continuously cover the entire inner circumferential surface of second divided accommodating portion 32B. For example, adhesive 60 is formed so as to cover the inner circumferential surface of accommodating tube portion 36 of second divided accommodating portion 32B located near inclined surface 40.

[0068] 9 , the wire structure 70 manufactured in the steps shown in FIGS. 6 and 7 is placed on the first divided body 51 to which the adhesive 60 has been applied. Specifically, the wire structure 70 is placed on the first divided body 51 so that the first shielded wire 11 is housed in the first divided accommodating section 31A, the second shielded wires 12 are housed in the second divided accommodating section 32A, and the insulating member 20 is housed in the third divided accommodating section 33A. At this time, the engagement surface 43, the partition wall 37, and the like can restrict movement of the wire structure 70 in the first direction X1 and the first opposite direction X2. This facilitates positioning of the wire structure 70 relative to the first divided body 51 and effectively prevents the wire structure 70 from shifting position within the first divided body 51.

[0069] Next, in the step shown in FIG. 10 , the second division 52 is overlapped on the first division 51 in which the electric wire structure 70 is set. Specifically, the first division 51 and the second division 52 are overlapped so that the first overlapping portion 53A and the second overlapping portion 53B are overlapped in the Z-axis direction and the fixing portion 56A and the fixing portion 56B are overlapped in the Z-axis direction. Next, the bolt B1 shown in FIG. 1 is screwed into the female threads provided on the inner surfaces of the fixing portions 56A and 56B. By tightening the bolt B1, the first division 51 and the second division 52 are fixed in a combined state. By tightening the bolts in this manner, the first division 51 and the second division 52 are tightened so that they approach each other. As a result, as shown in Fig. 3 , the adhesive 60 applied to the first opposing surface 54A spreads in the Y-axis direction, filling the groove 57 formed by the first chamfered portion 55A and the second chamfered portion 55B. As shown in Fig. 2 , the adhesive 60 is formed to close the gap between the inner circumferential surface of the first accommodating portion 31 and the outer circumferential surface of the first shielded electric wire 11, and to close the gap between the inner circumferential surface of the second accommodating portion 32 and the outer circumferential surface of the second shielded electric wire 12. The adhesive 60 is then hardened by a heat treatment or the like. As shown in Fig. 3 , when the first divided body 51 and the second divided body 52 are fixed in a combined state, the inner circumferential surface of the connecting portion 34 of the first accommodating portion 31 comes into contact with the outer circumferential surface of the exposed portion 11 e of the first shielded electric wire 11. Furthermore, as shown in Figure 4, when the first divided body 51 and the second divided body 52 are fixed in a combined state, the inner surface of the connection portion 38 of the second accommodating portion 32 comes into contact with the outer surface of the exposed portion 12e of the second shielded wire 12.

[0070] The wire harness 10 of this embodiment can be manufactured through the above manufacturing process. Next, the effects of this embodiment will be described. (1) The wire harness 10 includes a first shielded electric wire 11 and a second shielded electric wire 12. The first shielded electric wire 11 and the second shielded electric wire 12 each include a core wire 11a, 12a, an insulating coating 11b, 12b that covers the outer periphery of the core wire 11a, 12a, and a shield member 11c, 12c that covers the outer periphery of the insulating coating 11b, 12b. The wire harness 10 includes a core wire connection portion 15 at which the core wires 11a, 12a of the first shielded electric wire 11 and the second shielded electric wire 12 are connected to each other, and an insulating member 20 that covers the outer periphery of the core wire connection portion 15. The wire harness 10 includes a conductive case 30 that covers the outer periphery of the insulating member 20 and also covers the outer periphery of the first shielded electric wire 11 and the second shielded electric wire 12, and an adhesive 60 that seals between the case 30 and the first shielded electric wire 11 and the second shielded electric wire 12. The case 30 has connection portions 34, 38 that are electrically connected to the plurality of shield members 11c, 12c, respectively.

[0071] According to this configuration, the outer periphery of the core wire connection portion 15 is covered with the conductive case 30, and the case 30 is electrically connected to each of the plurality of shield members 11c, 12c. This allows the case 30 to function as an electromagnetic shield member that suppresses radiation of electromagnetic waves from the core wire connection portion 15. Furthermore, the adhesive 60 seals between the case 30 and the first shield wire 11 and the second shield wire 12. This allows the case 30 and the adhesive 60 to function as waterproof members that suppress water exposure to the core wire connection portion 15. In this manner, the case 30 can function as both an electromagnetic shield member and a waterproof member. Therefore, the number of parts of the wire harness 10 can be reduced compared to when the electromagnetic shield member and the waterproof member are configured as separate parts. As a result, the number of assembly steps for the wire harness 10 can be reduced, thereby improving the assembly workability of the wire harness 10.

[0072] (2) The case 30 includes a first divided body 51 and a second divided body 52 that are formed to be able to be combined with each other, and a bolt B1 that fastens the first divided body 51 and the second divided body 52 in a combined state. By combining the first divided body 51 and the second divided body 52, the case 30 is formed into a cylindrical shape that surrounds the outer periphery of the insulating member 20 and the outer peripheries of the first shielded electric wire 11 and the second shielded electric wire 12.

[0073] According to this configuration, the case 30 is formed into a cylindrical shape in which the first divided body 51 and the second divided body 52 surround the outer periphery of the insulating member 20, the outer periphery of the first shielded electric wire 11, and the outer periphery of the second shielded electric wire 12. As a result, while the case 30 is cylindrical, the case 30 is divided into a plurality of divided bodies, i.e., the first divided body 51 and the second divided body 52, so that the case 30 can be retrofitted to the wire structure 70. That is, after forming the core wire connecting portion 15 to which the core wires 11 a, 12 a are connected and forming the insulating member 20 that covers the outer periphery of the core wire connecting portion 15, the case 30 can be attached to the wire structure 70. This improves the ease of assembling the case 30 to the wire structure 70, and improves the workability of assembling the wire harness 10.

[0074] (3) When the first divided body 51 and the second divided body 52 are joined together, the first opposing surface 54A of the first divided body 51 and the second opposing surface 54B of the second divided body 52 are overlapped, and the first chamfered portion 55A and the second chamfered portion 55B form a groove 57. The adhesive 60 is then filled into the groove 57. The adhesive 60 filled into the groove 57 can provide an appropriate seal between the first opposing surface 54A and the second opposing surface 54B.

[0075] (4) The first divided body 51 and the second divided body 52 constituting the case 30 are formed to have the same structure. This prevents an increase in the number of parts, specifically, the number of types of parts. (5) An interference is provided between the inner periphery of the connection portion 34 and the outer periphery of the exposed portion 11e. With this configuration, the exposed portion 11e of the first shielded electric wire 11 is fitted into the inner periphery of the tubular connection portion 34 with an interference. That is, when the first shielded electric wire 11 is fitted into the connection portion 34, the outer periphery of the exposed portion 11e and the inner periphery of the connection portion 34 come into contact with an interference. As a result, the exposed portion 11e of the first shielded electric wire 11 fitted into the connection portion 34 is constantly pressed radially inward by the connection portion 34, and the inner periphery of the connection portion 34 comes into contact with the inner periphery of the connection portion 34. This allows for favorable contact between the inner periphery of the connection portion 34 and the outer periphery of the exposed portion 11e. Therefore, the reliability of the electrical connection between the case 30 and the shielding member 11c can be improved.

[0076] (6) An interference is provided between the inner periphery of the connecting portion 38 and the outer periphery of the exposed portion 12e. With this configuration, the exposed portion 12e of the second shielded electric wire 12 is fitted into the inner periphery of the tubular connecting portion 38 with an interference. That is, when the second shielded electric wire 12 is fitted into the connecting portion 38, the outer periphery of the exposed portion 12e and the inner periphery of the connecting portion 38 come into contact with an interference. As a result, the exposed portion 12e of the second shielded electric wire 12 fitted into the connecting portion 38 comes into contact with the inner periphery of the connecting portion 38 while being constantly pressed radially inward by the connecting portion 38. This allows for favorable contact between the inner periphery of the connecting portion 38 and the outer periphery of the exposed portion 12e. This improves the reliability of the electrical connection between the case 30 and the shield member 12c.

[0077] (7) The exposed portions 11e, 12e are connected to the connecting portions 34, 38 while being sandwiched between the underlay ring 13 and the connecting portions 34, 38. This allows the inner circumferential surfaces of the connecting portions 34, 38 to be in good contact with the outer circumferential surfaces of the exposed portions 11e, 12e. This improves the reliability of the electrical connection between the case 30 and the shielding members 11c, 12c.

[0078] (8) The case 30 is made of die-cast aluminum. This configuration allows for easy manufacturing of a conductive case 30. (Modifications) 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 they are not technically inconsistent.

[0079] In the above embodiment, the bolt B1 is used as the fixing member for fixing the combined state of the first divided body 51 and the second divided body 52. ​​However, the fixing member is not limited to this. For example, the fixing member may be a resin or metal cable tie, adhesive tape, or the like.

[0080] The bolt B1 in the above embodiment may be omitted. In this case, the fixing portions 56A, 56B of the case 30 are also omitted. In this case, the combined state of the first divided body 51 and the second divided body 52 is fixed only by the adhesive 60, for example.

[0081] In the above embodiment, the sealing member is embodied as the adhesive 60, but this is not limiting. For example, the sealing member may be embodied as a rubber sealing member. In this case, the sealing member does not need to have the function of fixing the combined state of the first divided body 51 and the second divided body 52.

[0082] The structure of the case 30 in the above embodiment can be modified as appropriate. In the case 30 in the above embodiment, the first divided body 51 and the second divided body 52 are configured as separate parts, but this is not limiting. For example, the first divided body 51 and the second divided body 52 may be formed integrally via a hinge or the like.

[0083] In the above embodiment, the case 30 is configured by two divided bodies, that is, the first divided body 51 and the second divided body 52. ​​However, the present invention is not limited to this. For example, the case 30 may be configured by three or more divided bodies.

[0084] In the above embodiment, the first divided body 51 and the second divided body 52 are formed to have the same structure, but this is not limiting. For example, the first divided body 51 and the second divided body 52 may be formed to have different structures. In other words, the first divided body 51 and the second divided body 52 may be parts with different product numbers.

[0085] The groove 57 in the case 30 of the above embodiment may be omitted. In this case, for example, the first chamfered portion 55A of the first divided body 51 is omitted, and the second chamfered portion 55B of the second divided body 52 is omitted.

[0086] In the case 30 of the above embodiment, the third housing portion 33 is provided with the engagement surface 43, but this is not limiting. For example, the engagement surface 43 may be omitted. In this case, for example, the first housing cylinder portion 41 and the second housing cylinder portion 42 are formed so that their dimensions along the Y-axis direction are the same.

[0087] The inclined surface 35 of the first housing portion 31 in the above embodiment may be omitted. The inclined surface 40 of the housing tube portion 36 of the second housing portion 32 in the above embodiment may be omitted.

[0088] In the above embodiment, the second accommodating section 32 is provided with two accommodating tube sections 36 that individually accommodate two second shielded electric wires 12. However, this is not limiting. For example, the second accommodating section 32 may be modified to accommodate two second shielded electric wires 12 collectively. In this case, the partition wall 37 is omitted.

[0089] The underlay ring 13 in the above embodiment may be omitted. In the above embodiment, the core wire 11 a and the core wire 12 a are directly welded to each other, but this is not limiting. For example, the core wire 11 a and the core wire 12 a may be connected to each other using a separate member.

[0090] In the above embodiment, the wire harness 10 includes one first shielded electric wire 11 and two second shielded electric wires 12. However, the present invention is not limited to this. For example, the number of first shielded electric wires 11 and second shielded electric wires 12 may be changed as appropriate.

[0091] In the above embodiment, the shielding members 11c and 12c are braided wires in which metal wires are braided into a cylindrical shape, but the present invention is not limited to this. For example, the shielding members 11c and 12c may be metal foils made of copper alloys, aluminum alloys, or the like.

[0092] The present disclosure encompasses the following aspects: Note that, for the purpose of facilitating understanding and not limitation, in the following description, reference signs indicating components of the embodiments are placed in parentheses. (Supplementary Note 1) A wire harness (10) comprising: a plurality of shielded electric wires (11, 12); a core wire connecting portion (15) connecting core wires (11a, 12a) of the plurality of shielded electric wires (11, 12) to each other; an insulating member (20) covering an outer periphery of the core wire connecting portion (15); a conductive case (30) covering an outer periphery of the insulating member (20) and also covering an outer periphery of the plurality of shielded electric wires (11, 12); and a seal member (60) sealing between the case (30) and the plurality of shielded electric wires (11, 12), wherein each of the plurality of shielded electric wires (11, 12) includes a shield member (11c; 12c), and the case (30) integrally includes a plurality of tubular connecting portions (34, 38) individually surrounding the plurality of shielded electric wires (11, 12), each of the plurality of cylindrical connection portions (34, 38) includes an inner peripheral surface that is in contact with and electrically connected to an outer peripheral surface of the shielding member (11c; 12c) of a corresponding one of the plurality of shielded electric wires (11, 12); and the sealing member (60) is provided on the inner peripheral surface of the plurality of cylindrical connection portions (34, 38) to seal between the case (30) and the plurality of shielded electric wires (11, 12).

[0093] According to this configuration, the shielded electric wire is housed in the cylindrical connection portion, thereby electrically connecting the shielding member of the shielded electric wire to the connection portion (case). Furthermore, a seal between the connection portion (case) and the shielded electric wire is achieved by a seal member (adhesive 60 in the above embodiment) provided on the inner peripheral surface of the cylindrical connection portion. This allows not only electrical connection between the case and the shielding member (electromagnetic shielding function of the case) but also sealing between the case and the shielded electric wire (waterproof function of the case) to be achieved simultaneously, simply by placing the shielded electric wire inside the cylindrical connection portion. Therefore, it is possible to achieve both electromagnetic shielding and waterproofing functions in a single case, while facilitating the assembly of multiple shielded electric wires into the case.

[0094] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the meaning described above, and is intended to include all modifications within the meaning and scope of the claims.

[0095] REFERENCE SIGNS LIST 10 Wire harness 11 First shielded electric wire 11a Core wire 11b Insulating coating 11c Shielding member 11d Sheath 11e Exposed portion 12 Second shielded electric wire 12a Core wire 12b Insulating coating 12c Shielding member 12d Sheath 12e Exposed portion 13 Underlay ring 15 Core wire connecting portion 20 Insulating member 30 Case 31 First accommodating portion 31A, 31B First divided accommodating portion 32 Second accommodating portion 32A, 32B Second divided accommodating portion 33 Third accommodating portion 33A, 33B Third divided accommodating portion 34 Connecting portion 35 Inclined surface 36 Accommodating tube portion 37 Partition wall 38 Connecting portion 39 Engaging wall 40 Inclined surface 41 First accommodating tube portion 42 Second accommodating tube portion 43 Engaging surface 51 First divided body 52 Second divided body 53A First overlapping portion 53B Second overlapping portion 54A First opposing surface 54B Second opposing surface 55A First chamfered portion 55B Second chamfered portion 56A Fixing portion 56B Fixing portion 57 Groove portion 60 Adhesive 70 Electric wire structure B1 Bolt X1 First direction X2 First opposite direction Y1 Second direction Y2 Second opposite direction Z1 Third direction Z2 Third opposite direction

Claims

1. A wire harness comprising a plurality of shielded electric wires, each of the plurality of shielded electric wires having a core wire, an insulating coating covering the outer periphery of the core wire, and a shielding member covering the outer periphery of the insulating coating; the wire harness comprising: a core wire connection portion at which the core wires of the plurality of shielded electric wires are connected to each other; an insulating member covering the outer periphery of the core wire connection portion; a conductive case covering the outer periphery of the insulating member and covering the outer periphery of the plurality of shielded electric wires; and a sealing member that seals between the case and the plurality of shielded electric wires, the case having a connection portion that is electrically connected to each of the plurality of shielding members.

2. A wire harness as described in claim 1, wherein the case has a plurality of divided bodies formed so as to be capable of being combined with one another, and a fixing member that fixes the plurality of divided bodies in a combined state, and the case is formed into a cylindrical shape that surrounds the outer periphery of the insulating member and the outer periphery of the plurality of shielded electric wires by combining the plurality of divided bodies.

3. The wire harness according to claim 2, wherein the plurality of segments include a first segment and a second segment formed to be combineable with the first segment, the first segment having a first overlapping portion protruding radially outward from a circumferential end of the first segment, the second segment having a second overlapping portion protruding radially outward from a circumferential end of the second segment, the first overlapping portion having a first opposing surface opposing the second overlapping portion and a first chamfered portion formed at the radially outer end of the first opposing surface, the second overlapping portion having a second opposing surface overlapping with the first opposing surface and a second chamfered portion formed at the radially outer end of the second opposing surface, the case having a groove formed by the first chamfered portion and the second chamfered portion, the wire harness having an adhesive filled in the groove, and the adhesive constituting the sealing member.

4. The wire harness according to claim 3, wherein the adhesive constitutes the sealing member and also constitutes the fixing member.

5. The wire harness according to claim 3, wherein the first divided body and the second divided body have the same structure.

6. A wire harness as described in claim 1, wherein each of the plurality of shielded electric wires further has a sheath that covers the outer periphery of the shielding member, an end of the shielding member has an exposed portion that is exposed from the end of the sheath and is folded back so as to surround the outer periphery of the end of the sheath, the connecting portion is formed in a tubular shape that surrounds the outer periphery of the exposed portion, and the inner periphery of the connecting portion is in contact with the outer periphery of the exposed portion.

7. The wire harness according to claim 6, wherein an interference is provided between the inner periphery of the connection portion and the outer periphery of the exposed portion.

8. A wire harness as set forth in claim 6, further comprising an underlying ring provided between the outer peripheral surface of the sheath and the inner peripheral surface of the exposed portion, wherein the exposed portion is connected to the connecting portion in a state where it is sandwiched between the underlying ring and the connecting portion.

9. The wire harness according to claim 1, wherein the plurality of shielded electric wires include one or more first shielded electric wires and two or more second shielded electric wires, the one or more first shielded electric wires and the two or more second shielded electric wires extend in opposite directions from each other with the core wire connection portion as a base point, the case has a first accommodating section that accommodates the one or more first shielded electric wires, a second accommodating section that accommodates the two or more second shielded electric wires, and a third accommodating section that accommodates the insulating member, and the second accommodating section has two or more accommodating cylindrical sections that individually accommodate the two or more second shielded electric wires, and a partition wall provided between adjacent accommodating cylindrical sections.

10. The wire harness according to claim 1, wherein the case is made of aluminum die-cast.

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