Wiring harness

Abstract

One aspect of the present disclosure provides a wire harness capable of suppressing a force that acts on a metal terminal to twist. The wire harness (11) according to one aspect of the present disclosure includes a core wire (12) and a metal terminal (14). The core wire (12) has an overall braided wire (17) formed by braiding together stranded wires (16) that are collective wires, and the metal terminal (14) is fused to the overall braided wire (17) of the core wire (12). The plurality of stranded wires (16) that make up the overall braided wire (17) include a first stranded wire (16a) stranded in a first rotation direction (X1) and a second stranded wire (16b) stranded in a second rotation direction (X2) opposite to the first rotation direction (X1).

Description

Technical Field

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

[0002] Conventionally, as a wire harness provided in a vehicle or the like, there is a wire harness having a core wire formed by further twisting together twisted wires obtained by twisting wires (for example, refer to Patent Document 1). In such a wire harness, compared with a case where wires are simply arranged in parallel, for example, the wires are less likely to become loose, have excellent flexibility, and have a stronger tensile strength and the like.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2018-37371 Summary of the Invention

[0006] Problems to be Solved by the Invention

[0007] However, in the core wire of the above-described wire harness, since all are twisted in the same direction, for example, when the core wire is ultrasonically welded to a metal terminal, a force that twists in one direction may act on the metal terminal.

[0008] The present invention has been completed to solve the above problems, and an object thereof is to provide a wire harness capable of suppressing the torsional force acting on a metal terminal.

[0009] Means for Solving the Problems

[0010] The wire harness of the present disclosure includes a core wire and a metal terminal. The core wire has a total braided wire formed by braiding together collective wires, the collective wires including twisted wires. The metal terminal is welded to the total braided wire of the core wire. The plurality of twisted wires constituting the total braided wire include a first twisted wire twisted in a first rotation direction and a second twisted wire twisted in a second rotation direction opposite to the first rotation direction.

[0011] Advantages of the Invention

[0012] According to the wire harness of the present disclosure, the torsional force acting on the metal terminal can be suppressed. Brief Description of the Drawings

[0013] Figure 1 is a plan view of a wire harness in one embodiment.

[0014] Figure 2 is in one embodiment Figure 1 of the 2-2 cross-sectional view.

[0015] Figure 3 is a cross-sectional view of a total braided wire in a first other example.

[0016] Figure 4 It is a top view of the wire harness in the second other example. Detailed implementation

[0017] [Description of the embodiments of the present disclosure]

[0018] First, the embodiments of the present disclosure will be listed and described.

[0019] The wire harness of the present disclosure

[0020] [1] It includes a core wire and a metal terminal. The core wire has a total braided wire formed by braiding the collective wires with each other. The collective wires include stranded wires. The metal terminal is welded to the total braided wire of the core wire. The multiple stranded wires constituting the total braided wire include a first stranded wire twisted in a first rotation direction and a second stranded wire twisted in a second rotation direction opposite to the first rotation direction.

[0021] According to this structure, since the core wire has a total braided wire formed by braiding the collective wires with each other, and the collective wires include stranded wires, the wires are less likely to become loose, have excellent flexibility, and have stronger tensile strength, etc., compared to, for example, the case where only wires are arranged in parallel. Also, since the multiple stranded wires constituting the total braided wire include a first stranded wire twisted in a first rotation direction and a second stranded wire twisted in a second rotation direction opposite to the first rotation direction, a force that twists in one direction acting on the metal terminal welded to the total braided wire can be suppressed.

[0022] [2] The number of the first stranded wires and the number of the second stranded wires are the same.

[0023] According to this structure, since the number of the first stranded wires and the number of the second stranded wires are the same, the force of torsion acting on the metal terminal welded to the total braided wire can be made equal in both directions.

[0024] [3] The number of wires constituting the first stranded wire and the number of wires constituting the second stranded wire are the same.

[0025] According to this structure, since the number of wires constituting the first stranded wire and the number of wires constituting the second stranded wire are the same, the force of torsion acting on the metal terminal welded to the total braided wire can be made equal in both directions.

[0026] [4] The total braided wire is formed by flatly braiding the collective wires with each other.

[0027] According to this structure, since the total braided wire is formed by flatly braiding the collective wires with each other, the height of the wire harness can be reduced.

[0028] [5] The collective wire is formed to be flat.

[0029] According to this structure, since the collective wire is formed flat, the height of the wire harness can be further reduced.

[0030] [Details of Embodiments of the Present Disclosure]

[0031] The following will describe a specific example of the wire harness of the present disclosure with reference to the attached Figure 1 drawings. In addition, the present invention is not limited to these examples, but is shown by the claims, including all changes within the meaning and scope equivalent to the claims.

[0032] As Figure 1 shown, the wire harness 11 includes a core wire 12, an insulating jacket 13 covering the core wire 12, and a metal terminal 14.

[0033] As Figure 1 and Figure 2 shown, the core wire 12 is composed of a total braided wire 17, and the total braided wire 17 is formed by braiding stranded wires 16 as collective wires with each other. The collective wire is formed by stranding wire materials 15. Specifically, the total braided wire 17 constituting the core wire 12 of the present embodiment is braided by four stranded wires 16 in a flat state, in other words, in a manner such that the height in the vertical direction is less than the width. In addition, the vertical direction is the direction corresponding to the direction orthogonal to the plane of Figure 1 the drawing, and the width is the length in the direction orthogonal to the extending direction of the core wire 12 when viewed from the vertical direction.

[0034] In addition, as Figure 2 shown, the stranded wire 16 is formed by stranding four wire materials 15 in a rotational direction centered on the axis Z along the extending direction. In addition, in Figure 1 the drawing, the illustration of the boundary between the wire materials 15 in one stranded wire 16 is omitted, and the core wire 12 is illustrated in a manner that the boundary between the stranded wires 16 is visually easy to understand.

[0035] Moreover, as Figure 2 shown, the plurality of stranded wires 16 constituting the total braided wire 17 include a first stranded wire 16a stranded in a first rotational direction X1 centered on the axis Z, and a second stranded wire 16b stranded in a second rotational direction X2 opposite to the first rotational direction X1. The number of the first stranded wires 16a and the number of the second stranded wires 16b are the same, each being two. In other words, half of the even-numbered stranded wires 16 are the first stranded wires 16a, and the remaining half are the second stranded wires 16b. In addition, as described above, the number of the wire materials 15 constituting the first stranded wire 16a and the number of the wire materials 15 constituting the second stranded wire 16b are the same, each being four.

[0036] The insulating jacket 13 is formed by assembling a pair of upper and lower resin molded products, for example, and is provided so as to cover the core wire 12 and sandwich the core wire 12, maintaining the state where the stranded wires 16 in the core wire 12 are braided with each other.

[0037] The metal terminal 14 is welded to the overall braided wire 17 of the core wire 12. Specifically, while the end portion 18 of the overall braided wire 17 is being pressed from above downward, it is ultrasonically welded to the metal terminal 14 disposed below. In addition, since the end portion 18 of the overall braided wire 17 is ultrasonically welded or the like in a manner of being flattened in the vertical direction, the illustration of the boundaries between the wire materials 15 of the end portion 18 of the overall braided wire 17 and the boundaries between the stranded wires 16 is omitted in Figure 1 the figure.

[0038] Next, the operation of the wire harness 11 configured as described above will be described.

[0039] Since the core wire 12 of the wire harness 11 has the overall braided wire 17 formed by braiding the stranded wires 16 with each other, compared with, for example, a case where only the wire materials 15 are arranged in parallel, the wire materials 15 are less likely to become loose, have excellent flexibility, and have a stronger tensile strength and the like.

[0040] Next, the effects of the above-described embodiment will be described below.

[0041] (1) Since the plurality of stranded wires 16 constituting the overall braided wire 17 include the first stranded wire 16a stranded in the first rotation direction X1 and the second stranded wire 16b stranded in the second rotation direction X2 opposite to the first rotation direction X1, the force that twists in one direction acting on the metal terminal 14 welded to the overall braided wire 17 can be suppressed.

[0042] (2) Since the number of the first stranded wires 16a and the number of the second stranded wires 16b constituting the overall braided wire 17 are the same, the force of torsion acting on the metal terminal 14 welded to the overall braided wire 17 can be made equal in both directions.

[0043] (3) Since the number of the wire materials 15 constituting the first stranded wire 16a and the number of the wire materials 15 constituting the second stranded wire 16b are the same, the force of torsion acting on the metal terminal 14 welded to the overall braided wire 17 can be made equal in both directions.

[0044] (4) Since the overall braided wire 17 is formed by flatly braiding the stranded wires 16 with each other, the height of the wire harness 11 can be reduced.

[0045] This embodiment can be implemented with the following modifications. This embodiment and the following modification examples can be implemented in combination with each other within a range where there is no technical contradiction.

[0046] · In the above-described embodiment, the overall braided wire 17 is formed by braiding the stranded wires 16 as collective wires with each other, but it can also be implemented as another overall braided wire formed by braiding other collective wires including stranded wires with each other.

[0047] For example, as Figure 3The first other example schematically shown in the figure can also be implemented as a total braided wire 23 formed by braiding four collective wires 22 formed by arranging four twisted wires 21 in parallel with each other in the same braiding manner as in the above-described embodiment and in a flattened state. In this case, for example, it is sufficient to make the four twisted wires 21 in each collective wire 22 include a first twisted wire 21a twisted in the first rotation direction X1 and a second twisted wire 21b twisted in a second rotation direction X2 opposite to the first rotation direction X1. Even so, it is possible to suppress the force acting on the metal terminal welded to the total braided wire 23 to twist in one direction. In addition, since the collective wire 22 is formed in a flat shape, the height of the wire harness can be further reduced.

[0048] In addition, for example, it can also be implemented as a total braided wire formed by braiding a plurality of braided wires as collective wires with each other, and the collective wires are formed by braiding a plurality of twisted wires.

[0049] In addition, for example, it can also be implemented as a total braided wire formed by braiding a plurality of twisted wires as collective wires with each other, and the collective wires are formed by further twisting a plurality of twisted wires.

[0050] In addition, for example, it can also be implemented as a total braided wire formed by braiding a plurality of twisted wires as collective wires with each other, and the collective wires are formed by twisting a plurality of braided wires.

[0051] · In the above-described embodiment, the total braided wire 17 is formed by braiding the twisted wires 16 with each other in a flattened state, in other words, in a manner where the height in the vertical direction is less than the width, but it is not limited thereto, and it can also be formed into a shape other than flat.

[0052] For example, as Figure 4 shown in the second other example, the total braided wire 31 can also be formed by braiding the twisted wires 16, specifically the first twisted wire 16a and the second twisted wire 16b, with each other in a state where the cross-section is substantially circular, in other words, in a manner where the height and width in the vertical direction are substantially the same.

[0053] · In the above-described embodiment, the number of the first twisted wires 16a and the number of the second twisted wires 16b that make up the total braided wire 17 are the same, but it is not limited thereto, and those numbers can also be made different. For example, it is also possible to have an odd number of twisted wires 16 and make the number of the first twisted wires 16a only one more or only one less than the number of the second twisted wires 16b.

[0054] · In the above-described embodiment, the number of the wire materials 15 that make up the first twisted wire 16a and the number of the wire materials 15 that make up the second twisted wire 16b are the same, but it is not limited thereto. For example, it is also possible to make some of the numbers different.

[0055] ·In the above-described embodiment, the total braided wire 17 is formed by braiding four stranded wires 16 that serve as collective wires. However, it is not limited thereto. For example, it may also be formed by braiding other numbers of collective wires such as six or eight.

[0056] ·In the above-described embodiment, the stranded wire 16 is formed by stranding four wire materials 15. However, it is not limited thereto. For example, it may also be formed by stranding other numbers of wire materials 15 such as six or more than a dozen.

[0057] ·In the above-described embodiment, the wire harness 11 includes an insulating outer member 13. The insulating outer member 13 is formed by assembling a pair of upper and lower resin molded products, and is provided so as to cover the core wire 12 and sandwich the core wire 12, maintaining the state in which the stranded wires 16 in the core wire 12 are braided with each other. However, it is not limited thereto, and it may also be changed to an insulating member having other structures that cover the core wire 12.

[0058] The present disclosure includes the following installation examples. It is not used for limitation, but as an aid to understanding, reference numerals of the components of the embodiment are marked.

[0059] [Supplementary Note 1] A wire harness (11) includes:

[0060] A total braided wire (17; 23; 31); and

[0061] Two metal terminals respectively fixed to both ends of the total braided wire (17; 23; 31),

[0062] The total braided wire (17; 23; 31) has a plurality of stranded wires that are braided with each other,

[0063] The plurality of stranded wires include one or more first stranded wires (16a; 21a) and one or more second stranded wires (16b; 21b),

[0064] Each of the first stranded wires (16a; 21a) includes a plurality of wire materials (15) stranded in a first rotation direction (X1),

[0065] Each of the second stranded wires (16b; 21b) includes a plurality of wire materials (15) stranded in a second rotation direction (X2) opposite to the first rotation direction (X1).

[0066] [Supplementary Note 2] In one or more installation examples of the present disclosure, it may also be that the total braided wire (17; 23; 31) is braided in such a manner that at least one of the first stranded wires (16a; 21a) and at least one of the second stranded wires (16b; 21b) are in contact with each other.

[0067] [Supplementary Note 3] In one or more installation examples of the present disclosure, it may also be that the total braided wire (17; 23; 31) has the first stranded wire (16a; 21a) and the second stranded wire (16b; 21b) arranged alternately in its width direction or its thickness direction.

[0068] [Supplementary Note 4] In one or more installation examples of the present disclosure, it may also be that the number of the stranded wires (16; 21) arranged in the width direction of the total braided wire (17; 23; 31) is larger than the number of the stranded wires (16; 21) arranged in the thickness direction thereof.

[0069] [Supplementary Note 5] In one or more installation examples of the present disclosure, it may also be that the total braided wire (23) includes a plurality of collective wires (22) woven with each other, and each of the collective wires (22) includes a plurality of the stranded wires (21) arranged in the width direction of the wire harness (11).

[0070] [Supplementary Note 6] In one or more installation examples of the present disclosure, it may also be that each of the collective wires (22) includes one or more of the first stranded wires (21a) and one or more of the second stranded wires (21b) arranged in the width direction.

[0071] [Supplementary Note 7] In one or more installation examples of the present disclosure, it may also be that the total braided wire (23) includes three or more of the collective wires (22) arranged in the width direction of the wire harness (11).

[0072] [Supplementary Note 8] In one or more installation examples of the present disclosure, it may also be that the total braided wire (23) includes a plurality of the collective wires (22) arranged in the thickness direction of the wire harness (11).

[0073] [Supplementary Note 9] In one or more installation examples of the present disclosure, it may also be that the wire harness (11) is provided with an insulating outer sheath (13) covering the total braided wire (17; 23; 31).

[0074] Description of Reference Numerals

[0075] 11 Wire harness

[0076] 12 Core wire

[0077] 13 Insulating outer sheath

[0078] 14 Metal terminal

[0079] 15 Wire material

[0080] 16 Stranded wire (collective wire)

[0081] 16a First stranded wire

[0082] 16b Second stranded wire

[0083] 17 Total braided wire

[0084] 18 End of the total braided wire

[0085] 21 Stranded wire

[0086] 21a First stranded wire

[0087] 21b Second stranded wire

[0088] 22 Bundle wire

[0089] 23 Total braided wire

[0090] 31 Total braided wire

[0091] X1 First rotation direction

[0092] X2 Second rotation direction

[0093] Z-axis

Claims

1. A wire harness includes a core wire and a metal terminal, wherein the core wire has a total braided wire, and the metal terminal is fused to the total braided wire of the core wire, the total braided wire has a plurality of set wires braided with each other, and each set wire includes one or more stranded wires, the plurality of stranded wires of the plurality of set wires include a first stranded wire formed by twisting four or more wire materials in a first rotation direction and a second stranded wire formed by twisting four or more wire materials in a second rotation direction opposite to the first rotation direction, the total braided wire formed by braiding the plurality of set wires has one or more of the first stranded wires and one or more of the second stranded wires alternately arranged in the width direction of the total braided wire.

2. The wire harness according to claim 1, wherein, The number of the first stranded wires is the same as the number of the second stranded wires.

3. The wiring harness according to claim 2, wherein The number of the wire materials constituting the first stranded wire is the same as the number of the wire materials constituting the second stranded wire.

4. The wire harness according to any one of claims 1 to 3, wherein, The total braided wire is formed by flatly braiding the set wires with each other.

5. The wire harness according to claim 4, wherein, Each set wire is formed to be flat.

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