Wire harness

Abstract

A wire harness (1) comprises an electric wire (2), a grommet (5), a water shut-off valve (23), a shield material (24), a first close contact layer (25), and a second close contact layer (26). The grommet (5) is attached to, for example, a vehicle body and houses the electric wire (2) inside. The water shut-off valve (23) is provided to shut off water inside the grommet (5) and attached by allowing the electric wire (2) to pass therethrough. The shield material (24) is attached around the water shut-off valve (23). The first close contact layer (25) is attached to the outer circumference of the shield material (24), thereby causing the shield material (24) to closely contact with the water shut-off valve (23). The second close contact layer (26) is attached to the outer circumference of the first close contact layer (25), thereby causing the first close contact layer (25) to closely contact with the shield material (24).

Description

[Technical Field]

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

[0002] Conventionally, as disclosed in Patent Document 1, a wire harness having an outer conductor for shielding electromagnetic waves has been well known. The outer conductor has, for example, a substantially cylindrical conductor tube made of aluminum. Aluminum conductor tubes have high rigidity. Therefore, when the installation space is narrow, the conductor tube restricts the position, and it may be impossible to install the wire harness.

[0003] Therefore, Patent Document 2 discloses a wire harness using a braided shield. This wire harness has a water stop valve that fills the gap between the electric wire and the grommet. The braided shield is arranged to cover the outer periphery of the water stop valve. A water stop adhesive member is attached to the outer periphery of the braided shield. The braided shield is flexible. Therefore, when the installation space is narrow, the wire harness can be bent and installed. Therefore, by adopting the wire harness of Patent Document 2, the wire harness can be installed even in a narrow installation space. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-53771 [Patent Document 2] Japanese Patent Application Publication No. 2016-119821 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when a wire harness is bent, depending on the type of bending load, the adhesion between the stop valve and the braided shield, or the adhesion between the braided shield and the water-stopping adhesive member, may be reduced. In this case, a gap that did not exist originally may be generated by the bending, and fluids such as water may flow into the interior through this gap. Therefore, there is a need for improving the water-stopping properties of a bendable wire harness.

[0006] An object of the present disclosure is to provide a wire harness that can improve water blocking properties. [Means for solving the problem]

[0007] The wire harness that solves the above problem comprises an electric wire for transmitting electricity, a grommet that is attached to an opening through which the electric wire passes and that houses the electric wire inside, a stop valve that is provided to stop water from entering the inside of the grommet and through which the electric wire passes and is attached, a shielding material attached around the stop valve, a first adhesion layer that is attached to the outer periphery of the shielding material to adhere the shielding material to the stop valve, and a second adhesion layer that is attached to the outer periphery of the first adhesion layer to adhere the first adhesion layer to the shielding material. [Effects of the Invention]

[0008] The present disclosure can improve the watertightness of a wire harness. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a wire harness. [Figure 2] FIG. 2 is a front view of the wire harness. [Figure 3] FIG. 3 is an exploded perspective view of the wire harness. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV shown in FIG. [Figure 5] FIG. 5 is a cross-sectional view taken along line VV shown in FIG. [Figure 6]6(a) to 6(d) are flow charts showing the flow of manufacturing a wire harness. [Figure 7] FIG. 7 is a diagram showing the operation of the wire harness. [Figure 8] 8(a) to 8(d) are flow charts showing the manufacturing flow of the wire harness. DETAILED DESCRIPTION OF THE INVENTION

[0010] First, embodiments of the present disclosure will be listed and described. [1] The wire harness of the present disclosure includes an electric wire for transmitting electricity, a grommet attached to an opening through which the electric wire passes and which houses the electric wire inside, a stop valve provided to seal the inside of the grommet and through which the electric wire passes, a shielding material attached around the stop valve, a first adhesion layer attached to the outer periphery of the shielding material to adhere the shielding material to the stop valve, and a second adhesion layer attached to the outer periphery of the first adhesion layer to adhere the first adhesion layer to the shielding material.

[0011] According to this configuration, the first adhesive layer adheres the shielding material to the stop valve, and the second adhesive layer adheres the first adhesive layer to the shielding material. In this way, the two layers, the first adhesive layer and the second adhesive layer, adhere the components to each other, making it possible to reduce the occurrence of gaps between the components. Therefore, the watertightness of the bendable wire harness can be improved.

[0012] [2] In the above [1], the shielding material is a braided shield formed of wires, and butyl rubber is used in at least a portion of the first adhesive layer. With this configuration, the butyl rubber penetrates between the stitches of the braided shield, allowing the butyl rubber to firmly fit into the shielding material. This increases the adhesion between the stop valve and the shielding material, further contributing to improved watertightness.

[0013] [3] In the above [2], the first adhesive layer is a sheet-like butyl-based rubber sheet at least partially made of butyl-based rubber, and the butyl-based rubber sheet is wound around the electric wire multiple times while shifting its position along the axial direction of the electric wire and is attached to the braided shield by being pressed with a jig. With this configuration, the butyl-based rubber sheet can be attached around the braided shield by the simple process of wrapping the butyl-based rubber sheet around the braided shield. Furthermore, since the butyl-based rubber sheet is pressed with a jig after attachment, it can also be firmly fitted to the braided shield.

[0014] [4] In any one of the above [1] to [3], the second adhesive layer is a tape wound around the first adhesive layer multiple times while shifting its position along the axial direction of the electric wire. This configuration allows for a simple operation of winding the tape around the first adhesive layer.

[0015] [5] In any one of the above [1] to [4], the grommet has an annular seal on its inner surface that seals the gap between the grommet and the second adhesive layer, thereby improving the waterproofing between the grommet and the second adhesive layer.

[0016] [6] In any one of the above [1] to [5], the stop valve has a hole through which the electric wire passes, and the hole has an annular seal on its inner surface that seals the gap between the electric wire and the stop valve. This configuration makes it possible to improve the watertightness between the electric wire and the stop valve.

[0017] [7] In any one of [1] to [6] above, the grommet has a tubular portion that houses an assembly including the stopcock, the electric wire, the shielding material, the first adhesive layer, and the second adhesive layer, and a seat portion that supports a base end of the tubular portion. With this configuration, the wire harness can easily change shape by bending the tubular portion around the seat portion. Therefore, the wire harness can be easily bent.

[0018] [8] In any of the above items [1] to [7], the seat has a water-stopping wall formed around the edge. This configuration prevents the intrusion of fluids such as water, thereby further improving the water-stopping properties.

[0019] (Details of the embodiments of the present disclosure) Specific examples of the wire harness of the present disclosure will be described below with reference to the drawings. Note that the present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims. In each drawing, for the convenience of explanation, some components may be exaggerated or simplified. Furthermore, the dimensional proportions of each part may differ from the actual ones.

[0020] (Overview of Wire Harness 1) As shown in FIG. 1, the wire harness 1 includes an electric wire 2 for transmitting electricity. The electric wire 2 is, for example, a coated electric wire in which a linear core wire is covered with an insulating coating. The core wire may be, for example, either a stranded wire or a single-core wire. The single-core wire is, for example, a columnar conductor having a solid interior structure or a tubular conductor having a hollow interior structure. The core wire is made of, for example, a copper-based or aluminum-based metal material. The insulating coating covers, for example, the outer circumferential surface of the core wire over the entire circumferential direction. The insulating coating is made of, for example, an insulating resin material. The number of electric wires 2 is not limited to multiple, and may be one.

[0021] As shown in Figures 1 and 2, the wire harness 1 includes a grommet 5 that protects the electric wires 2 that are passed through an opening 4 (shown in Figure 2) of an attachment destination 3. The grommet 5 is attached to the opening 4 through which the electric wires 2 pass, and the electric wires 2 are housed inside. The grommet 5 has a tubular portion 6 through which the electric wires 2 pass, and a seat portion 8 that supports a base end 7 of the tubular portion 6. The grommet 5 is attached to the opening 4 via a bracket 9. The bracket 9 is fixed to the attachment destination 3 by, for example, a fastening portion 10. The fastening portion 10 is, for example, a bolt. The attachment destination 3 is, for example, the body of a vehicle.

[0022] The grommet 5 is arranged, for example, at a location separating the indoor area from the outdoor area at the attachment point 3. In this example, the tubular portion 6 of the grommet 5 is arranged on the indoor side, and the seat portion 8 is arranged on the outdoor side. A recess 7a is provided at the base end 7 of the grommet 5 to facilitate bending of the grommet 5.

[0023] As shown in Figure 3, the seat portion 8 has a plate-shaped main body 13 that rests on the bracket 9, and a flange 14 provided on the back surface of the main body 13. The flange 14 is disposed on the back surface of the main body 13. The grommet 5 is attached to the attachment target 3 by engaging the flange 14 with the periphery of a hole 15 in the bracket 9. The bracket 9 has a plurality of positioning holes 17 for inserting pins 16 that protrude from the back surface of the seat portion 8 (main body 13). The bracket 9 has holes 18 at both ends for inserting the fastening portions 10.

[0024] (Water-stopping structure of the electric wire 2 in the grommet 5) As shown in Figures 4 and 5, an assembly 22 for sealing off water between an inner peripheral surface 21 of the grommet 5 and the electric wire 2 is housed inside the grommet 5. The assembly 22 includes, for example, a water stop valve 23, a shielding material 24, a first adhesive layer 25, and a second adhesive layer 26. In this example, the assembly 22 is housed in the tubular portion 6 of the grommet 5. The assembly 22 prevents fluids such as water from entering the grommet 5.

[0025] Stopcock 23 is provided to stop water from entering the inside of grommet 5, and is attached so that electric wire 2 passes through it. Stopcock 23 is, for example, a rubber stopper. Stopcock 23 has holes 27 through which electric wire 2 passes. In this example, holes 27 extend along the axial direction of electric wire 2 (Z-axis direction in Figure 4, etc.), and three holes 27 are formed. The multiple holes 27 are arranged at equal angular intervals around axis P of grommet 5 (see Figure 4).

[0026] 5, the hole 27 has an annular seal portion 30 on its inner surface that seals the gap between the hole 27 and the electric wire 2. In this example, a plurality of seal portions 30 (three in this example) are provided at positions closer to the center in the axial direction (Z-axis direction in FIG. 5) of the electric wire 2. The seal portion 30 is, for example, a lip-type seal that assumes a sealing state by elastically deforming.

[0027] The shielding material 24 is attached around the stop valve 23. The shielding material 24 surrounds the stop valve 23. The shielding material 24 is, for example, a braided shield 32 formed from wires 31 (see FIG. 6). The wires 31 are, for example, metal wires. The shielding material 24 is, for example, flexible, and prevents electrical noise and crosstalk and improves strength against abrasion.

[0028] The first adhesive layer 25 is attached to the outer periphery of the shielding material 24, thereby adhering the shielding material 24 to the stopcock 23. The first adhesive layer 25 is made of, for example, at least a portion of butyl-based rubber. In this example, the first adhesive layer 25 is a sheet-like butyl-based rubber sheet 34 made of, at least a portion of butyl-based rubber. The butyl-based rubber sheet 34 is wound around the wire 2 multiple times, for example, while shifting its position along the axial direction (the Z-axis direction in FIG. 5 ) of the wire 2. After being wound around the wire 2, the butyl-based rubber sheet 34 is pressurized to make it conform to the braided shield 32.

[0029] The second adhesive layer 26 is attached to the outer periphery of the first adhesive layer 25, thereby adhering the first adhesive layer 25 to the shielding material 24. The second adhesive layer 26 is, for example, a tape 35 wound multiple times while shifting its position along the axial direction of the electric wire 2 (the Z-axis direction in FIG. 5). The tape 35 preferably has high flexibility, high insulation properties, heat resistance, and cold resistance. The tape 35 is, for example, a vinyl tape.

[0030] (Other water-stopping structures) As shown in Fig. 5, the grommet 5 has an annular seal portion 38 on its inner surface that seals the gap between itself and the second adhesive layer 26. In this example, a plurality of seal portions 38 (three in this example) are formed at equal intervals along the axial direction of the electric wire 2 (the Z-axis direction in Fig. 5). The seal portion 38 is, for example, a protrusion that protrudes a predetermined amount from the inner surface of the grommet 5. The seal portion 38 is, for example, a lip-type seal that assumes a sealed state by elastic deformation.

[0031] As shown in Figures 1 to 3 and 5, the seat 8 has a water-stopping wall 39 formed around the edge. The wall 39 is formed in a shape that protrudes obliquely from the main body 13 of the seat 8. The wall 39 prevents fluids such as water from entering the upper surface (surface) of the seat 8 from the periphery.

[0032] Next, the operation of the wire harness 1 of this embodiment will be described. (Assembly of wire harness 1) As shown in Figure 6(a), a shielding material 24 (in this example, a braided shield 32) is attached around the stop valve 23 with the electric wire 2 attached to the hole 27. The shielding material 24 is attached so as to cover both the electric wire 2 and the stop valve 23. In other words, the shielding material 24 is attached to both the stop valve 23 and the electric wire 2 near the stop valve 23.

[0033] As shown in Fig. 6(b), after the shielding material 24 is attached, the first adhesive layer 25 is attached around the shielding material 24. When the first adhesive layer 25 is a butyl-based rubber sheet 34, the butyl-based rubber sheet 34 is wrapped around the first adhesive layer 25 multiple times. Specifically, the butyl-based rubber sheet 34 is wrapped around the first adhesive layer 25 multiple times while shifting its position along the axial direction of the electric wire 2 (the direction of arrow A1 in Fig. 6(b)) so that it overlaps (e.g., half-laps) with the butyl-based rubber sheet 34 on the adjacent circumference by a predetermined amount.

[0034] As shown in Figure 6(c) , after the butyl-based rubber sheet 34 is wrapped around the shield 24, it is pressed by a jig 41. Specifically, the butyl-based rubber sheet 34 is pressed against the braided shield 32 by rolling it with a roller 42 serving as the jig 41. As a result, when the shielding material 24 is the braided shield 32, the butyl-based rubber sheet 34 enters into the gaps between the stitches of the braided shield 32, and the butyl-based rubber sheet 34 fits well with the braided shield 32.

[0035] As shown in FIG. 6(d), after the butyl-based rubber sheet 34 is pressed, the second adhesive layer 26 is attached around the first adhesive layer 25. If the second adhesive layer 26 is tape 35, the tape 35 is wrapped around the first adhesive layer 25 multiple times. Specifically, the tape 35 is wrapped around the first adhesive layer 25 multiple times while shifting its position along the axial direction of the wire 2 (the direction of arrow A2 in FIG. 6(d)) so that it overlaps (e.g., half-laps) with the tape 35 on the adjacent circumference by a predetermined amount. The tape 35 is preferably attached so as to cover the entire shielding material 24. As described above, the assembly 22 is assembled.

[0036] 5, after assembly 22 is assembled, this assembly 22 is inserted into grommet 5. In this example, assembly 22 is inserted into grommet 5 so that second adhesive layer 26 contacts seal portion 38 inside grommet 5. Furthermore, assembly 22 is placed in tubular portion 6 in grommet 5.

[0037] (Advantages of Wire Harness 1 in this example) As shown in FIG. 7, the mounting space for the wire harness 1 may be small. Here, an example is given in which the mounting space is low in height. In this example, the use of a flexible shielding material 24 allows the wire harness 1 to be bent and arranged. Furthermore, the first adhesive layer 25 and the second adhesive layer 26 are also bendable, which facilitates bending of the wire harness 1. In this way, flexibility in the posture (inclination) of the wire harness 1 is possible, so that the wire harness 1 can be routed even in a small mounting space.

[0038] The shielding material 24 is tightly adhered to the stop valve 23 by wrapping the first adhesive layer 25 around it. That is, the first adhesive layer 25 is wrapped around the outer periphery of the shielding material 24 to prevent a gap from occurring between the shielding material 24 and the stop valve 23. This improves the watertightness between the stop valve 23 and the shielding material 24.

[0039] Furthermore, a butyl-based rubber sheet 34 is used as the first adhesive layer 25, and the butyl-based rubber sheet 34 is wrapped around the shielding material 24 and then pressurized with a jig 41. Therefore, when the shielding material 24 is a braided shield 32, the butyl-based rubber sheet 34 enters the meshes of the braided shield 32 by pressurization, making it possible for the butyl-based rubber sheet 34 to conform to the braided shield 32. This also contributes to firmly fixing the shielding material 24 to the stop valve 23.

[0040] The first adhesive layer 25 is tightly adhered to the shielding material 24 by having the second adhesive layer 26 wrapped around it. That is, the second adhesive layer 26 is wrapped around the outer periphery of the first adhesive layer 25 to prevent a gap from occurring between the shielding material 24 and the first adhesive layer 25. This further improves the watertightness between the shielding material 24 and the first adhesive layer 25.

[0041] However, because the butyl-based rubber sheet 34 is adhesive, it can stick to the worker's hands or other parts of the body. However, in this example, the butyl-based rubber sheet 34 is covered with the second adhesive layer 26, so the butyl-based rubber sheet 34 is not exposed on the surface. This makes it less likely that the butyl-based rubber sheet 34 will stick to the worker's hands or other parts of the body. This also makes it easier to handle.

[0042] (Effects of the embodiment) According to the wire harness 1 of the above embodiment, the following effects can be obtained. (1) The wire harness 1 includes an electric wire 2, a grommet 5, a stop valve 23, a shielding material 24, a first adhesive layer 25, and a second adhesive layer 26. The electric wire 2 transmits electricity. The grommet 5 is attached to an opening 4 through which the electric wire 2 passes, and the electric wire 2 is housed therein. The stop valve 23 is provided to stop water from entering the inside of the grommet 5, and the electric wire 2 passes through and is attached. The shielding material 24 is attached around the stop valve 23. The first adhesive layer 25 is attached to the outer periphery of the shielding material 24, thereby adhering the shielding material 24 to the stop valve 23. The second adhesive layer 26 is attached to the outer periphery of the first adhesive layer 25, thereby adhering the first adhesive layer 25 to the shielding material 24.

[0043] According to this example, the first adhesive layer 25 adheres the shielding material 24 to the stopcock 23, and the second adhesive layer 26 adheres the first adhesive layer 25 to the shielding material 24. In this way, the two layers, the first adhesive layer 25 and the second adhesive layer 26, adhere the components to each other, making it possible to reduce the likelihood of gaps occurring between the components. This improves the watertightness of the bendable wire harness 1.

[0044] (2) The shielding material 24 is a braided shield 32 formed from wires 31. Butyl-based rubber is used in at least a portion of the first adhesive layer 25. With this configuration, the butyl-based rubber penetrates between the stitches of the braided shield 32, and therefore the butyl-based rubber adheres firmly to the shielding material 24. This increases the adhesion between the stopcock 23 and the shielding material 24, further contributing to improved watertightness.

[0045] (3) The first adhesive layer 25 is a sheet-like butyl-based rubber sheet 34 that uses butyl-based rubber for at least a portion thereof. The butyl-based rubber sheet 34 is wound around the electric wire 2 in multiple turns while shifting its position along the axial direction, and is attached so as to be in close contact with the braided shield 32 by being pressed by a jig 41. According to this configuration, the butyl-based rubber sheet 34 can be attached around the braided shield 32 by the simple operation of wrapping the butyl-based rubber sheet 34 around the braided shield 32. Furthermore, since the butyl-based rubber sheet 34 is pressed by the jig 41 after being attached, the butyl-based rubber sheet 34 can be firmly fitted to the braided shield 32.

[0046] (4) The second adhesive layer 26 is a tape 35 wound around the first adhesive layer 25 in multiple turns while shifting the position along the axial direction of the electric wire 2. According to this configuration, the tape 35 can be simply wound around the first adhesive layer 25.

[0047] (5) The grommet 5 has an annular seal portion 38 on its inner surface that seals the gap between the grommet 5 and the second adhesive layer 26. This configuration improves the watertightness between the grommet 5 and the second adhesive layer 26.

[0048] (6) The stop valve 23 has a hole 27 through which the electric wire 2 passes. The hole 27 has an annular seal portion 30 on its inner surface that seals the gap between the electric wire 2 and the stop valve 23. This configuration can improve the watertightness between the electric wire 2 and the stop valve 23.

[0049] (7) The grommet 5 has a tubular portion 6 that houses the assembly 22 therein and a seat portion 8 that supports a base end 7 of the tubular portion 6. The assembly 22 includes the electric wire 2, a stopcock 23, a shielding material 24, a first adhesive layer 25, and a second adhesive layer 26. With this configuration, the wire harness 1 can easily change its shape by bending the tubular portion 6 around the seat portion 8. This makes it possible to make the wire harness 1 easier to bend.

[0050] (8) The seat 8 has a water-stopping wall 39 formed around the entire edge. This configuration prevents fluids such as water from entering the seat 8 by the wall 39, further improving the water-stopping properties. This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility.

[0051] The shielding material 24 is not limited to the braided shield 32, but may be, for example, a sheet or a tube that can shield electromagnetic waves. The method for fitting the first adhesive layer 25 to the shielding material 24 is not limited to the method of applying pressure with the roller 42, but may be a method of simply pressing a jig 41, for example.

[0052] The first adhesive layer 25 is not limited to a sheet shape, and may be, for example, cylindrical. The first adhesion layer 25 is not limited to butyl-based rubber (butyl-based rubber sheet 34), but may be any material that is bendable and can press the shielding material 24 against the stopcock 23 by covering it from the surrounding area.

[0053] In the example shown in FIGS. 6(a) to 6(d), the first adhesive layer 25 is wound in a so-called half-wrap manner, but the first adhesive layer 25 may also be wound in a full-wrap manner. As shown in FIGS. 8(a) to 8(d), the first adhesive layer 25 may be wound around the shielding material 24 multiple times at the same position in the axial direction of the electric wire 2, i.e., without any offset in the axial direction of the electric wire 2. For example, without limitation, the dimension of the first adhesive layer 25 in the axial direction of the electric wire 2 (arrow A1) (sometimes referred to as the width of the first adhesive layer 25) may be substantially or completely equal to the entire length of the stopcock 23 in the axial direction of the electric wire 2 (arrow A1). When the first adhesive layer 25 is a butyl-based rubber sheet 34, a butyl-based rubber sheet stack may be formed around the stopcock 23 over the entire length of the stopcock 23, with multiple butyl-based rubber sheets 34 overlapping each other. A roll of a multi-layer first adhesive layer 25 (a roll of a multi-layer butyl-based rubber sheet 34) having a length corresponding to or equal to the entire length of the stopcock 23 is advantageous in improving water-stopping properties, and can flexibly adapt to sealing performance requirements, for example, by adjusting the number of turns according to the sealing performance requirements.

[0054] The tape 35 of the second adhesive layer 26 is not limited to a vinyl tape, but may be any resin tape. The tape 35 of the second adhesive layer 26 is preferably, for example, an insulating tape.

[0055] The second adhesive layer 26 is not limited to the tape 35, but may be, for example, a cylindrical member that covers the first adhesive layer 25 from the periphery. The stop valve 23 is not limited to a rubber stopper, and may be made of any elastic material. In this way, the stop valve 23 may be made of any material that can seal the inside of the grommet 5.

[0056] The grommet 5 may be attached directly to the attachment 3, for example, the body of a vehicle, without using the bracket 9. The grommet 5 may have any shape as long as it can protect the electric wire 2 that is passed through the hole 27 .

[0057] The assembly 22 is not limited to being disposed only in the cylindrical portion 6, but may be shaped to extend across the base end 7 and reach the seat portion 8. The electric wire 2 may be a cable made up of a plurality of bundled electric wires.

[0058] The wire harness 1 is not limited to being used in a vehicle, but may also be used in other devices and apparatuses. [Supplementary Note 1] As shown in FIGS. 4 and 5, a wire harness (1) according to some embodiments of the present disclosure includes: A plurality of electric wires (2), each having an outer circumferential surface; an elastic water stop valve (23) having a plurality of through holes (27) configured to be in watertight contact with a plurality of outer peripheral surfaces of the plurality of electric wires (2) in a first length portion of the plurality of electric wires (2); a cylindrical braided shield (24) that is longer than the entire length of the stop valve (23) and is configured to collectively cover the plurality of electric wires (2) and the stop valve (23); a cylindrical first adhesive layer (25) having an overall length equal to or corresponding to the overall length of the stopcock (23), the cylindrical first adhesive layer (25) being configured to adhere to the outer peripheral surface of the cylindrical braided shield (24) over the entire length of the cylindrical first adhesive layer (25); a cylindrical second adhesive layer (26) longer than the entire length of the cylindrical first adhesive layer (25), configured to be in close contact with the outer peripheral surface of the cylindrical first adhesive layer (25) over the entire length of the cylindrical first adhesive layer (25); and a grommet (5) having an elastic tubular portion (6) configured to allow the plurality of electric wires (2) to pass through.

[0059] [Appendix 2] In some embodiments, as shown in Figures 4 and 5, the stopcock (23), the tubular braided shield (24), the tubular first adhesive layer (25), and the tubular second adhesive layer (26) may form a multi-layer structure that covers the first length portions of the plurality of electric wires (2) in this order.

[0060] [Appendix 3] In some embodiments, as shown in Figures 4 and 5, the second adhesive layer (26) may be in close contact with the outer surface of the tubular braided shield (24) in a second length portion adjacent to the first length portion of the plurality of electric wires (2).

[0061] [Appendix 4] In some embodiments, as shown in the examples of Figures 4 and 5, the multilayer structure including the stopcock (23), the tubular braided shield (24), the tubular first adhesive layer (25), and the tubular second adhesive layer (26) may be disposed on the elastic tubular portion (6) of the grommet (5), and the tubular second adhesive layer (26), which forms the radially outermost surface of the multilayer structure, may be in watertight contact with the inner surface (21) of the tubular portion (6) of the grommet (5).

[0062] [Appendix 5] In some embodiments, as shown in Figures 4 and 5, the outer peripheral surface of the stop valve (23) is surrounded by the inner peripheral surface (21) of the tubular portion (6) of the grommet (5), but does not need to be in direct contact with the inner peripheral surface (21) of the tubular portion (6).

[0063] While the present disclosure has been described with reference to the embodiments, it is understood that the present disclosure is not limited to those embodiments or structures. The present disclosure also encompasses various modifications and equivalent modifications. In addition, various combinations and forms, including only one element, more than one element, or less than one element, are also within the scope and spirit of the present disclosure. [Explanation of symbols]

[0064] 1 Wire harness 2 electric wire 3 Installation location 4 aperture 5 Grommets 6 Cylinder part 7 Proximal end 7a Recess 8 Seat area 9 Bracket 10 Fastening part 13 Main unit 14 flange 15 holes 16-pin 17 holes 18 holes 21 Inner surface 22 Assembly 23 Stop valve 24 Shielding material 25 First adhesive layer 26 Second adhesive layer 27 holes 30 Seal part 31 Wire 32 Braided Shield 34 Butyl rubber sheet 35 Tape 38 Seal part 39 Wall 41 Jig 42 Laura P-axis

Claims

1. an electric wire for transmitting electricity; a grommet attached to the opening through which the electric wire passes and accommodating the electric wire therein; a water stop valve provided to stop water from entering the grommet and through which the electric wire passes; A shielding material attached around the stop valve; a first adhesive layer that is attached to the outer periphery of the shielding material to adhere the shielding material to the stop valve; a second adhesive layer attached to an outer periphery of the first adhesive layer to adhere the first adhesive layer to the shielding material, The second adhesive layer is a tape wound multiple times while shifting positions along the axial direction of the electric wire.

2. an electric wire for transmitting electricity; a grommet attached to the opening through which the electric wire passes and accommodating the electric wire therein; a water stop valve provided to stop water from entering the grommet and through which the electric wire passes; A shielding material attached around the stop valve; a first adhesive layer that is attached to the outer periphery of the shielding material to adhere the shielding material to the stop valve; a second adhesive layer attached to an outer periphery of the first adhesive layer to adhere the first adhesive layer to the shielding material, The grommet has an annular seal portion on an inner surface thereof for sealing a gap between the grommet and the second adhesive layer.

3. an electric wire for transmitting electricity; a grommet attached to the opening through which the electric wire passes and accommodating the electric wire therein; a water stop valve provided to stop water from entering the grommet and through which the electric wire passes; A shielding material attached around the stop valve; a first adhesive layer that is attached to the outer periphery of the shielding material to adhere the shielding material to the stop valve; a second adhesive layer attached to an outer periphery of the first adhesive layer to adhere the first adhesive layer to the shielding material, The grommet is a cylindrical portion that accommodates an assembly including the stopcock, the electric wire, the shielding material, the first adhesive layer, and the second adhesive layer; a seat portion supporting a base end of the cylindrical portion; A wire harness having:

4. The seat has a water-stopping wall formed around the edge. The wire harness according to claim 3 .

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