JP7845080B2 - Wire harness - Google Patents

Description

This disclosure relates to wire harnesses.

Conventionally, wire harnesses used in vehicles such as hybrid and electric vehicles contain wires that electrically connect high-voltage batteries, inverters, and other electrical equipment. In this type of wire harness, the outer circumference of the wires is covered by a cylindrical outer covering member for protection (see, for example, Patent Document 1).

Japanese Patent Publication No. 2012-175879

Incidentally, the above-mentioned exterior member is one that has an inner diameter larger than the outer diameter of the electric wire housed inside. Therefore, a gap is formed between the inner surface of the exterior member and the outer surface of the electric wire. Consequently, there is a problem that the electric wire vibrates inside the exterior member due to vibrations during vehicle operation, etc. In particular, when multiple electric wires with different outer diameters are housed in a single exterior member, the gap between the inner surface of the exterior member and the outer surface of the electric wire becomes larger, making the above-mentioned problem more pronounced. When the electric wire vibrates inside the exterior member, there is a problem of wear and tear on both the exterior member and the electric wire due to friction between the inner surface of the exterior member and the outer surface of the electric wire.

The purpose of this disclosure is to provide a wire harness that can suppress wear.

The wire harness of this disclosure comprises a cylindrical member, a first wire member penetrating the cylindrical member, and a second wire member penetrating the cylindrical member and having different external dimensions from the first wire member. The external dimensions of the first wire member are smaller than those of the second wire member in a first direction, and the cylindrical member is provided with a projection that protrudes from the inner circumferential surface of the cylindrical member in the first direction and is capable of contacting the outer circumferential surface of the first wire member.

The wire harness described herein offers the advantage of suppressing wear.

Figure 1 is a schematic diagram showing a wire harness according to one embodiment. Figure 2 is a schematic perspective view showing a wire harness according to one embodiment. Figure 3 is a schematic cross-sectional view showing a wire harness according to one embodiment. Figure 4 is a schematic cross-sectional perspective view showing a cylindrical member of one embodiment. Figure 5 is a schematic cross-sectional view showing a modified wire harness.

[Description of Embodiments in this Disclosure]
First, embodiments of this disclosure will be listed and described.
[1] The wire harness of the present disclosure comprises a cylindrical member, a first wire member penetrating the cylindrical member, and a second wire member penetrating the cylindrical member and having different external dimensions from the first wire member, wherein the external dimensions of the first wire member are smaller than those of the second wire member in a first direction, and the cylindrical member is provided with a projection that protrudes from the inner circumferential surface of the cylindrical member in the first direction and is capable of contacting the outer circumferential surface of the first wire member.

In this configuration, a projection extending in a first direction from the inner circumferential surface of the cylindrical member is provided so as to be able to contact the first wire member, whose outer dimensions in the first direction are smaller than those of the second wire member. This projection restricts the movement of the first wire member within the cylindrical member, thereby suppressing vibration of the first wire member within the cylindrical member. Furthermore, by suppressing the vibration of the first wire member within the cylindrical member, vibration of the second wire member within the cylindrical member can also be suppressed. As a result, friction between the inner circumferential surface of the cylindrical member and the outer circumferential surfaces of the first and second wire members can be suppressed, thus reducing wear on the cylindrical member, the first wire member, and the second wire member.

Furthermore, since the protruding element is formed to be able to contact the outer surface of the first wire member, compared to a configuration in which the protruding element is formed to be able to contact the outer surface of the second wire member, it is possible to suppress the enlargement of the cylindrical member in the first direction caused by the presence of the protruding element.

Furthermore, in this specification, "tubular" includes not only those with a continuous circumferential wall formed around the entire circumference, but also those formed by combining multiple parts. In this specification, "tubular" includes those with a circular outer edge shape, a flattened outer edge shape, or a polygonal outer edge shape, and refers to any closed shape where the outer edge shape is connected by straight or curved lines.

[2] In the above [1], it is preferable that the protruding body is provided in the space located in the vicinity of the first electric wire member within the internal space of the cylindrical member.
In this configuration, a protruding body is provided near the first electric wire member within the internal space of the cylindrical member. Therefore, the protruding body can be brought into suitable contact with the first electric wire member, and the movement of the first electric wire member inside the cylindrical member can be effectively suppressed. As a result, the vibration of the first electric wire member inside the cylindrical member can be effectively suppressed.

[3] In the above [1] or [2], it is preferable that the protruding body extends along the axial direction of the cylindrical member over the entire length in the axial direction of the cylindrical member.
With this configuration, the protruding body can be brought into contact with the outer surface of the first wire member along the entire axial length of the cylindrical member. Therefore, the vibration of the first wire member inside the cylindrical member can be effectively suppressed along the entire axial length of the cylindrical member.

[4] In any one of the above [1] to [3], it is preferable that the cylindrical member has a cylindrical peripheral wall surrounding the outer circumference of the first wire member and the outer circumference of the second wire member, and that the protruding body is provided on the inner peripheral surface of the peripheral wall and is formed integrally with the peripheral wall.

In this configuration, the protruding body is formed integrally with the peripheral wall. Therefore, the number of parts in the cylindrical member can be reduced compared to when the protruding body and the peripheral wall are made of separate parts.
[5] In the above [4], the protruding member has a projection that protrudes radially inward from the inner surface of the peripheral wall of the cylindrical member, and a contact portion provided at the tip of the projection that can contact the outer surface of the first electric wire member, wherein the contact portion preferably extends in a second direction perpendicular to the first direction in which the projection extends.

In this configuration, the protruding member has a projection that extends from the inner surface of the peripheral wall and a contact portion provided at the tip of the projection. The internal space of the cylindrical member in the portion where the protruding member is provided is narrower than the internal space of the portion where the protruding member is not provided, depending on the amount of projection and the thickness of the contact portion. Therefore, the gap between the inner surface of the cylindrical member and the outer surface of the first wire member can be reduced in the internal space of the portion where the protruding member is provided. This effectively restricts the movement of the first wire member within the cylindrical member and effectively suppresses vibrations of the first wire member within the cylindrical member.

[6] In the above [5], the contact portion preferably extends in the second direction from both sides of the protruding tip of the protruding portion, and the cross-sectional shape of the protruding body is preferably T-shaped or inverted T-shaped.

This configuration allows for an increased contact area between the protruding element and the first wire member. This enables more effective suppression of vibrations within the cylindrical member of the first wire member.

[7] In the above [5] or [6], it is preferable that the thickness of the protruding portion is equal to the thickness of the peripheral wall, and the thickness of the contact portion is equal to the thickness of the peripheral wall.
With this configuration, the thickness of the peripheral wall, the thickness of the protruding portion, and the thickness of the contact portion are all equal. Therefore, it is possible to make the thickness of each part of the cylindrical member as uniform as possible. As a result, deformation such as shrinkage that may occur in the cylindrical member due to variations in thickness can be suppressed.

[8] In any one of [1] to [7] above, the first wire member and the second wire member are arranged side by side along a second direction perpendicular to the first direction, the cylindrical member has a cylindrical peripheral wall surrounding the outer circumference of the first wire member and the outer circumference of the second wire member, the cross-sectional shape of the peripheral wall is formed to be a flattened shape that is longer in the second direction than in the first direction, and the protruding body preferably projects in the first direction from the inner peripheral surface of the peripheral wall.

In this configuration, the cross-sectional shape of the peripheral wall of the cylindrical member is formed as a flattened shape that is elongated in the second direction in which the first and second wire members are aligned. The dimension of this peripheral wall along the second direction can be set to match the external dimensions of the first and second wire members. However, if the external dimensions of the first and second wire members differ, a gap is likely to occur between the inner surface of the peripheral wall and the outer surface of the first wire member in the first direction, which is perpendicular to the second direction in which the first and second wire members are aligned. In contrast, in the above configuration, a protruding ridge is formed projecting from the inner surface of the peripheral wall in the first direction. This protruding ridge reduces the gap between the cylindrical member and the first wire member in the first direction. This effectively restricts the movement of the first wire member inside the cylindrical member and effectively suppresses the vibration of the first wire member inside the cylindrical member.

[9] In the above [8], the cross-sectional shape of the peripheral wall is preferably formed in an oval shape having two flat portions extending parallel to each other in the second direction and two semi-circular arc portions connecting the two flat portions and facing each other in the second direction, and the protruding body preferably projects from the inner circumferential surface of the flat portions in the first direction.

In this configuration, the protruding ridge is formed projecting from the inner circumferential surface of the flat section. Therefore, the base end of the protruding ridge is connected to the inner circumferential surface of the flat section, which is formed in a planar manner. This allows the base end of the protruding ridge to be stably supported by the inner circumferential surface of the flat section.

[10] In the above [8] or [9], the first wire member has a plurality of first wires and a cylindrical electromagnetic shielding member surrounding the outer circumference of the plurality of first wires, the second wire member has a second wire having a larger outer diameter than each of the plurality of first wires, the outer dimensions of the electromagnetic shielding member are smaller than the outer dimensions of the second wires in the first direction, and the protruding body is preferably provided so as to be in contact with the outer surface of the electromagnetic shielding member.

In this configuration, the first wire member comprises a first wire with a smaller outer diameter than the second wire, and an electromagnetic shielding member surrounding the outer circumference of the first wire. Even with this configuration, the movement of the entire first wire member within the internal space of the cylindrical member can be restricted by providing a protruding body that can contact the outer surface of the electromagnetic shielding member. This suppresses the vibration of the entire first wire member within the internal space of the cylindrical member.

In this specification, "outer diameter of member A" refers to the outer diameter of the cross-section perpendicular to the axial direction of member A, i.e., the cross-sectional surface of member A. Here, the cross-sectional shape of member A is not limited to a perfect circle; it may be an ellipse, oblong, polygon, or other non-circular shape. When the cross-sectional shape of member A is non-circular, "outer diameter of member A" refers to the diameter of the circumscribed circle with the largest diameter among one or more circles circumscribed around the non-circular cross-section of member A. In other words, "outer diameter of member A" in this specification refers to the longest distance between two points on the outer surface of the cross-section of member A.

[Details of the embodiments of this disclosure]
Specific examples of the wire harnesses of this disclosure will be described below with reference to the drawings. In each drawing, some parts of the configuration may be exaggerated or simplified for the sake of explanation. Also, the dimensional ratios of each part may differ in each drawing. In this specification, "parallel,""orthogonal," and "full length" include not only cases where they are strictly parallel, orthogonal, or full length, but also cases where they are approximately parallel, orthogonal, or full length within the range that achieves the effects of this embodiment. In this specification, "opposing" means that faces or members are in a position facing each other, and includes not only cases where they are completely facing each other, but also cases where they are partially facing each other. In this specification, "opposing" includes both cases where a member other than the two parts is interposed between the two parts, and cases where nothing is interposed between the two parts. In this specification, "equal" includes not only cases where they are exactly equal, but also cases where there are some differences between the comparison objects due to the effects of dimensional tolerances, etc. In this specification, "semicircle" includes not only a semicircle obtained by dividing a perfect circle in half, but also, for example, those with an arc longer or shorter than a semicircle. Some drawings illustrate mutually orthogonal X, Y, and Z axes. For convenience, in the following description, the direction extending along the X axis will be referred to as the X-axis direction, the direction extending along the Y axis as the Y-axis direction, and the direction extending along the Z axis as the Z-axis direction. However, the present invention is not limited to these examples and is intended to include all modifications within the meaning and scope of the claims as shown in the claims.

(Overall configuration of wire harness 10)
The wire harness 10 shown in Figure 1 is installed in a vehicle V, such as a hybrid vehicle or an electric vehicle. The wire harness 10 electrically connects two or more electrical devices M1, M2, M3, and M4. The wire harness 10 is formed in a long shape so as to extend in the front-rear direction of the vehicle V. The wire harness 10 is routed in the vehicle V such that, for example, the middle portion of the wire harness 10 in the longitudinal direction passes outside the vehicle, such as under the floor of the vehicle V.

The wire harness 10 comprises a wire member 20 and a cylindrical member 50 through which the wire member 20 passes. The wire member 20 includes, for example, a first wire member 30 that electrically connects electrical equipment M1 and electrical equipment M2, and a second wire member 40 that electrically connects electrical equipment M3 and electrical equipment M4.

One end of the first wire member 30 in the longitudinal direction is electrically connected to electrical equipment M1, and the other end of the first wire member 30 in the longitudinal direction is electrically connected to electrical equipment M2. Electrical equipment M1 is, for example, an inverter located towards the front of the vehicle V. Electrical equipment M2 is, for example, a high-voltage battery located behind the vehicle V. Electrical equipment M1, as an inverter, is connected to a wheel drive motor (not shown) that serves as the power source for vehicle movement. Electrical equipment M1, as an inverter, generates AC power from the DC power of the high-voltage battery and supplies this AC power to the motor. Electrical equipment M2, as a high-voltage battery, is a battery capable of supplying a voltage of several hundred volts.

One end of the second wire member 40 in the longitudinal direction is electrically connected to electrical equipment M3, and the other end of the second wire member 40 in the longitudinal direction is electrically connected to electrical equipment M4. Electrical equipment M3 is, for example, an electrical junction box located towards the front of the vehicle V. Electrical equipment M4 is, for example, a low-voltage battery located behind electrical equipment M3 in the vehicle V. Examples of electrical junction boxes include relay boxes, fuse boxes, and junction boxes. Electrical equipment M3, as an electrical junction box, distributes the voltage supplied from the low-voltage battery to various devices mounted on the vehicle V. Electrical equipment M4, as a low-voltage battery, is a battery capable of supplying a lower voltage (for example, 12 volts) than a high-voltage battery.

As shown in Figures 2 and 3, the first wire member 30 and the second wire member 40 have different external dimensions. As shown in Figure 3, the external dimensions of the first wire member 30 in this embodiment are smaller than those of the second wire member 40 in the Z-axis direction. For example, the maximum dimension D1 of the first wire member 30 along the Z-axis direction is smaller than the maximum dimension D2 of the second wire member 40 along the Z-axis direction. Furthermore, the external dimensions of the first wire member 30 in this embodiment are larger than those of the second wire member 40 in the Y-axis direction.

The first wire member 30 and the second wire member 40 are, for example, arranged side by side along the Y-axis direction inside the cylindrical member 50. As shown in Figure 2, the first wire member 30 and the second wire member 40 are, for example, arranged parallel to each other inside the cylindrical member 50 and extending in the X-axis direction.

(Configuration of the first wire component 30)
As shown in Figure 3, the first wire member 30 has one or more wires 31. In this embodiment, the first wire member 30 has two wires 31. The first wire member 30 has, for example, a cylindrical braided member 35 that surrounds the outer circumference of multiple wires 31 together.

Each wire 31 is a coated wire having a conductive core wire 32 and an insulating coating 33 that surrounds the outer circumference of the core wire 32 and provides insulation. Each wire 31 is, for example, a high-voltage wire capable of handling high voltage and high current. Each wire 31 may be, for example, a non-shielded wire without an electromagnetic shielding structure, or a shielded wire with an electromagnetic shielding structure. In this embodiment, each wire 31 is a non-shielded wire.

As the core wire 32, for example, a stranded wire made by twisting together multiple metal strands or a single-core wire consisting of a single conductor can be used. As a single-core wire, for example, a columnar conductor consisting of a single columnar metal rod with a solid internal structure or a cylindrical conductor with a hollow internal structure can be used. As the material of the core wire 32, for example, a metal material such as copper or aluminum can be used.

The insulating coating 33 covers the outer surface of the core wire 32 around its entire circumference. The insulating coating 33 is made of, for example, an insulating resin material.
The cross-sectional shape obtained by cutting each electric wire 31 with a plane perpendicular to the longitudinal direction of each electric wire 31, that is, the cross-sectional shape of each electric wire 31, can be formed into any shape. The cross-sectional shape of each electric wire 31 can be formed into, for example, a circular shape, a semicircular shape, a polygonal shape, a square shape, a flattened shape, etc. In this embodiment, the cross-sectional shape of each electric wire 31 is formed into a circular shape. In this specification, "flattened shape" includes rectangles, ovals, and ellipses. In this specification, "rectangle" has a long side and a short side, excluding squares. In this specification, "oval" is a rounded rectangle consisting of two parallel lines of approximately equal length and two semicircles. In this specification, "oval" has a long side on which the parallel lines extend and a short side extending in the direction in which the two parallel lines are aligned.

The two electric wires 31 are, for example, arranged side by side along the Y-axis. The two electric wires 31 may be in contact with each other or separated from each other in the Y-axis direction. In this embodiment, the two electric wires 31 are arranged side by side in the Y-axis direction such that a portion of their outer surfaces are in contact with each other.

The braided member 35 is a long, cylindrical shape overall. The braided member 35 is, for example, flexible. As the braided member 35, for example, a braided wire made of multiple metal strands or a braided wire made by combining metal strands and resin strands can be used. Although not shown in the illustration, both ends of the braided member 35 in the longitudinal direction are connected to ground in, for example, electrical equipment M1, M2 (see Figure 1). Such a braided member 35 functions as an electromagnetic shielding member.

The cross-sectional shape of the braided member 35 can be formed into any shape. For example, the cross-sectional shape of the braided member 35 is formed into a flattened shape where the Y-axis direction is longer than the Z-axis direction. In this embodiment, the cross-sectional shape of the braided member 35 is formed into an oval shape where the longer side extends in the Y-axis direction and the shorter side extends in the Z-axis direction. That is, the cross-sectional shape of the braided member 35 in this embodiment is formed into an oval shape with the longer side in the Y-axis direction where the two electric wires 31 are aligned.

The inner surface of the braided member 35 may or may not be in direct contact with the outer surface of the electric wire 31. In this embodiment, the inner surface of the braided member 35 is in partial contact with the outer surfaces of the two electric wires 31. In this embodiment, the braided member 35 is formed such that each semicircular portion of its inner surface is in close contact with the outer surface of each electric wire 31.

In the first wire member 30 of this embodiment, the maximum dimension of the braided member 35 along the Z-axis direction becomes the maximum dimension D1 of the first wire member 30.
(Configuration of the second wire component 40)
The second wire member 40 has one or more wires 41. In this embodiment, the second wire member 40 has one wire 41.

The electric wire 41 is a covered electric wire having a conductive core wire 42 and an insulating coating 43 that surrounds the outer circumference of the core wire 42 and provides insulation. The electric wire 41 is, for example, a low-voltage electric wire. The electric wire 41 may be, for example, an unshielded electric wire or a shielded electric wire. In this embodiment, the electric wire 41 is an unshielded electric wire.

For the core wire 42, for example, stranded wire or single-core wire can be used. For the material of the core wire 42, for example, metal materials such as copper-based or aluminum-based materials can be used.
The insulating coating 43 covers the outer surface of the core wire 42 around its entire circumference. The insulating coating 43 is made of, for example, an insulating resin material.

The cross-sectional shape of the electric wire 41 can be formed into any shape. In this embodiment, the cross-sectional shape of the electric wire 41 is formed into a circular shape.
The outer diameter of the electric wire 41 is larger than, for example, the outer diameter of each of the multiple electric wires 31. In the second electric wire member 40 of this embodiment, the maximum dimension of the electric wire 41 along the Z-axis direction, that is, the outer diameter of the electric wire 41, becomes the maximum dimension D2 of the second electric wire member 40. In other words, the outer diameter of the electric wire 41 in this embodiment is larger than the maximum dimension D1 of the first electric wire member 30. To put it another way, the outer dimensions of the braided member 35 are smaller than the outer dimensions of the electric wire 41 in the Z-axis direction.

The electric wire 41 and the multiple electric wires 31 are arranged, for example, in a line along the Y-axis direction. That is, the multiple electric wires 31 and 41 of the electric wire member 20 are arranged in a single line along the Y-axis direction.

(Structure of the cylindrical member 50)
As shown in Figures 1 and 2, the cylindrical member 50 is a long, cylindrical shape overall. The cylindrical member 50 partially houses, for example, the electric wire member 20. For example, the cylindrical member 50 houses the middle portion of the electric wire member 20 in the longitudinal direction. The cylindrical member 50 protects the electric wire member 20 housed inside from flying objects and water droplets. The cylindrical member 50 can be, for example, a metal or resin pipe, a resin protector, a flexible corrugated tube made of resin, a rubber waterproof cover, or a combination thereof. In this embodiment, the cylindrical member 50 is a resin pipe. As the material for the cylindrical member 50, synthetic resins such as polypropylene, polyolefin, polyamide, and polyester can be used.

As shown in Figure 3, the cylindrical member 50 has a cylindrical peripheral wall 60 surrounding the outer circumference of the first wire member 30 and the outer circumference of the second wire member 40, and a protruding ridge 70 projecting from the inner surface of the peripheral wall 60. The cylindrical member 50 is, for example, a single component in which the peripheral wall 60 and the protruding ridge 70 are continuously and integrally formed.

The peripheral wall 60 is cylindrical, for example, enclosing the outer circumference of the first wire member 30 and the outer circumference of the second wire member 40. The peripheral wall 60 is continuously formed around the entire circumference of the cylindrical member 50.

The cross-sectional shape of the peripheral wall 60 can be formed into any shape. For example, the cross-sectional shape of the peripheral wall 60 can be circular, polygonal, or flattened. For example, the cross-sectional shape of the peripheral wall 60 is formed into a flattened shape where the Y-axis direction is longer than the Z-axis direction. In this embodiment, the cross-sectional shape of the peripheral wall 60 is formed into an oval shape where the longer side extends in the Y-axis direction and the shorter side extends in the Z-axis direction. Specifically, the cross-sectional shape of the peripheral wall 60 has two flat sections 61 and 62 extending parallel to each other in the Y-axis direction, and two semi-circular arc sections 63 and 64 connecting the two flat sections 61 and 62 and facing each other in the Y-axis direction. The peripheral wall 60 is formed integrally with the flat section 61, the semi-circular arc section 63, the flat section 62, and the semi-circular arc section 64 in a continuous manner.

The two flat sections 61 and 62 are spaced apart from each other in the Z-axis direction. The two flat sections 61 and 62 face each other in the Z-axis direction. The inner and outer circumferential surfaces of each flat section 61 and 62 are formed, for example, in a planar shape. The inner and outer circumferential surfaces of each flat section 61 and 62 are formed, for example, to extend parallel to the XY plane.

Each semi-circular section 63, 64 connects the Y-axis ends of the two flat sections 61, 62. Each semi-circular section 63, 64 extends along the arc from the Y-axis end of the flat section 61 toward the Y-axis end of the flat section 62. The two semi-circular sections 63, 64 are curved so as to bulge away from each other in the Y-axis direction. Each semi-circular section 63, 64 is formed, for example, along the outer circumferential surface of the electric wire 41. The inner circumferential surface of semi-circular section 63 is provided to be in contact with, for example, the outer circumferential surface of the electric wire 41. The inner circumferential surface of semi-circular section 64 is provided to be in contact with, for example, the outer circumferential surface of the braided member 35 of the first electric wire member 30.

The radial thickness T1 of the peripheral wall 60 is, for example, uniform in the circumferential direction of the peripheral wall 60. That is, the thickness of each flat portion 61, 62 and the thickness of each semi-circular portion 63, 64 are equal to each other.
The internal space of the peripheral wall 60 is formed to a size that can accommodate the first wire member 30 and the second wire member 40. The size of the internal space of the peripheral wall 60 is set according to, for example, the outer diameter of the wire 41 of the second wire member 40. For example, the dimension of the internal space of the peripheral wall 60 along the Z-axis direction is set according to the outer diameter of the wire 41, that is, the maximum dimension D2 of the second wire member 40. For example, the shortest distance between the inner surface of one flat portion 61 and the inner surface of the other flat portion 62 is set to be slightly larger than the maximum dimension D2.

The protruding member 70 is provided so as to be able to contact the outer circumferential surface of the first wire member 30. For example, the protruding member 70 is provided in the space near the first wire member 30 within the internal space of the cylindrical member 50. In this embodiment, the protruding member 70 is provided so as to face the first wire member 30 housed inside the cylindrical member 50.

The protruding member 70 projects, for example, from the inner circumferential surface of the flat portion 61 into the internal space of the peripheral wall 60. The cross-sectional shape of the protruding member 70 is, for example, formed in an inverted T-shape. The protruding member 70 has, for example, a projection 71 that protrudes radially inward from the inner circumferential surface of the flat portion 61 into the cylindrical member 50, and a contact portion 72 provided at the protruding tip of the projection 71 and capable of contacting the outer circumferential surface of the first electric wire member 30.

The projection 71 protrudes, for example, from the inner circumferential surface of the flat portion 61 in the Z-axis direction. The projection 71 is provided, for example, on the inner circumferential surface of the end of the flat portion 61 in the Y-axis direction, specifically the end of the flat portion 61 connected to the semi-circular arc portion 64. The projection 71 extends, for example, parallel to the Z-axis direction. The projection 71 has, for example, a predetermined thickness T2 in the Y-axis direction. The thickness T2 of the projection 71 is, for example, equal to the thickness T1 of the circumferential wall 60.

The contact portion 72 extends, for example, in a direction intersecting the direction in which the projection 71 extends. The contact portion 72 also extends, for example, in the Y-axis direction perpendicular to the Z-axis direction in which the projection 71 extends. The contact portion 72 extends, for example, from both sides of the projection tip of the projection 71 in the Y-axis direction. The projection 71 is, for example, located at the center of the contact portion 72 in the Y-axis direction. The contact portion 72 has, for example, a predetermined thickness T3 in the Z-axis direction. The thickness T3 of the contact portion 72 is, for example, equal to the thickness T1 of the peripheral wall 60.

The contact portion 72 has, for example, a contact surface 73 that can contact the outer circumferential surface of the first wire member 30. The contact surface 73 can contact, for example, the outer circumferential surface of the braided member 35 of the first wire member 30. The contact surface 73 can contact, for example, the outer circumferential surface of the flat portion of the oval-shaped braided member 35. The contact surface 73 may or may not be in direct contact with the outer circumferential surface of the braided member 35.

The protruding body 70 is formed such that, for example, the shortest distance L1 between the contact surface 73 and the inner circumferential surface of the flat portion 62 is greater than the maximum dimension D1 of the first wire member 30. For example, the amount of protrusion of the projection 71 and the thickness T3 of the contact portion 72 are set so that the shortest distance L1 is greater than the maximum dimension D1. By setting the shortest distance L1 to be greater than the maximum dimension D1 of the first wire member 30 in this way, it is possible to suppress the protruding body 70 from obstructing the insertion of the first wire member 30 into the cylindrical member 50.

As shown in Figure 4, the projection 70 extends along the axial direction of the cylindrical member 50. The projection 70 extends, for example, along the entire axial length of the cylindrical member 50. The cross-sectional shape of the projection 70 is, for example, uniform along the entire length of the cylindrical member 50. Similarly, the cross-sectional shape of the cylindrical member 50 is, for example, uniform along its entire length.

Next, the effects and advantages of this embodiment will be explained.
(1) The wire harness 10 comprises a cylindrical member 50, a first wire member 30 that penetrates the cylindrical member 50, and a second wire member 40 that penetrates the cylindrical member 50 and has different external dimensions from the first wire member 30. The external dimensions of the first wire member 30 are smaller than those of the second wire member 40 in the Z-axis direction (first direction). The cylindrical member 50 is provided with a projection 70 that protrudes from the inner circumferential surface of the cylindrical member 50 in the Z-axis direction and is capable of contacting the outer circumferential surface of the first wire member 30.

In this configuration, a projection 70 protruding in the Z-axis direction from the inner circumferential surface of the cylindrical member 50 is provided so as to be able to contact the first wire member 30, whose outer dimensions in the Z-axis direction are smaller than those of the second wire member 40. This projection 70 restricts the movement of the first wire member 30 within the cylindrical member 50, thereby suppressing the vibration of the first wire member 30 within the cylindrical member 50. Furthermore, by suppressing the vibration of the first wire member 30 within the cylindrical member 50, the vibration of the second wire member 40 within the cylindrical member 50 can also be suppressed. As a result, friction between the inner circumferential surface of the cylindrical member 50 and the outer circumferential surfaces of the first wire member 30 and the second wire member 40 can be suppressed, thus reducing wear on the cylindrical member 50, the first wire member 30, and the second wire member 40.

(2) Furthermore, since the protruding body 70 is formed to be able to contact the outer circumferential surface of the first wire member 30, compared to a configuration in which the protruding body 70 is formed to be able to contact the outer circumferential surface of the second wire member 40, it is possible to suppress the enlargement of the cylindrical member 50 in the Z-axis direction caused by the provision of the protruding body 70. For example, by setting the dimension of the cylindrical member 50 along the Z-axis direction to match the maximum dimension D2 of the second wire member 40 and providing the protruding body 70 to the first wire member 30, it is possible to suppress the enlargement of the cylindrical member 50 in the Z-axis direction while suppressing the vibration of the wire member 20 due to vehicle vibration.

(3) A protruding ridge 70 is provided in the vicinity of the first wire member 30 within the internal space of the cylindrical member 50. Therefore, the protruding ridge 70 can be suitably brought into contact with the first wire member 30, and the movement of the first wire member 30 within the cylindrical member 50 can be suitably suppressed. This effectively suppresses the vibration of the first wire member 30 within the cylindrical member 50.

(4) The protruding member 70 extends along the axial direction of the cylindrical member 50, along its entire axial length. This configuration allows the protruding member 70 to contact the outer surface of the first wire member 30 along its entire axial length. Therefore, vibration of the first wire member 30 within the cylindrical member 50 can be effectively suppressed along its entire axial length.

(5) The cross-sectional shape of the cylindrical member 50 is uniform along its entire axial length. This configuration allows for easy manufacturing of the cylindrical member 50 by using an extrusion molding machine that extrudes the raw material in the longitudinal direction. Furthermore, multiple types of cylindrical members 50 with different axial dimensions can be manufactured using a single extrusion molding machine. For example, multiple types of cylindrical members 50 with different axial dimensions can be manufactured by cutting the base material of a cylindrical member 50 formed by a single extrusion molding machine to an arbitrary length using a cutting machine.

(6) The protruding body 70 is formed integrally with the peripheral wall 60. Therefore, compared to the case where the protruding body 70 and the peripheral wall 60 are made of separate parts, the number of parts in the cylindrical member 50 can be reduced.

(7) The protruding body 70 has a projection 71 that protrudes from the inner surface of the peripheral wall 60, and a contact portion 72 provided at the tip of the projection 71. The internal space of the cylindrical member 50 in the portion where the protruding body 70 is provided (i.e., the space on the left side of Figure 3) is narrower than the internal space of the portion where the protruding body 70 is not provided (i.e., the space on the right side of Figure 3), depending on the amount of protrusion of the projection 71 and the thickness T3 of the contact portion 72. Therefore, in the internal space of the portion where the protruding body 70 is provided, the gap between the inner surface of the cylindrical member 50 and the outer surface of the first wire member 30 can be reduced. This effectively restricts the movement of the first wire member 30 in the internal space of the cylindrical member 50 and effectively suppresses the vibration of the first wire member 30 in the internal space of the cylindrical member 50.

(8) The contact portion 72 extends in the Y-axis direction (second direction) from both sides of the protruding tip of the protruding portion 71. This configuration increases the area on which the protruding body 70 and the first wire member 30 can contact each other. This allows for more effective suppression of the vibration of the first wire member 30 inside the cylindrical member 50.

(9) The thickness T1 of the peripheral wall 60, the thickness T2 of the protruding portion 71, and the thickness T3 of the contact portion 72 are all equal. Therefore, it is possible to make the thickness of each part of the cylindrical member 50 as uniform as possible. As a result, deformation such as shrinkage that may occur due to variations in thickness can be suppressed in the cylindrical member 50.

(10) The cross-sectional shape of the peripheral wall 60 of the cylindrical member 50 is formed to be a flattened shape that is long in the Y-axis direction, where the first wire member 30 and the second wire member 40 are aligned. The dimension of the peripheral wall 60 along the Y-axis direction can be set to match the external dimensions of the first wire member 30 and the second wire member 40. However, if the external dimensions of the first wire member 30 and the second wire member 40 are different, a gap is likely to occur between the inner surface of the peripheral wall 60 and the outer surface of the first wire member 30 in the Z-axis direction, which is perpendicular to the Y-axis direction, where the first wire member 30 and the second wire member 40 are aligned. In contrast, in the wire harness 10, a protruding body 70 is formed to protrude from the inner surface of the peripheral wall 60 in the Z-axis direction. This protruding body 70 can reduce the gap between the cylindrical member 50 and the first wire member 30 in the Z-axis direction. This effectively restricts the movement of the first wire member 30 within the cylindrical member 50 and effectively suppresses the vibration of the first wire member 30 within the cylindrical member 50.

(11) The protruding ridge 70 is formed to protrude from the inner circumferential surface of the flat portion 61. Therefore, the base end of the protruding ridge 70 is connected to the inner circumferential surface of the flat portion 61, which is formed in a planar shape. This allows the base end of the protruding ridge 70 to be stably supported by the inner circumferential surface of the flat portion 61.

(12) The first wire member 30 has a plurality of wires 31 and a cylindrical braided member 35 that surrounds the outer circumference of the plurality of wires 31. The second wire member 40 has a wire 41 whose outer diameter is larger than each of the plurality of wires 31. The outer dimensions of the braided member 35 are smaller than the outer dimensions of the wires 41 in the Z-axis direction. The protruding members 70 are provided so as to be able to contact the outer surface of the braided member 35. This restricts the movement of the entire first wire member 30 inside the cylindrical member 50 and suppresses the shaking of the entire first wire member 30 inside the cylindrical member 50.

(Other embodiments)
The above embodiment can be implemented with the following modifications. The above embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically.

The cross-sectional shape of the protruding body 70 in the above embodiment can be changed as appropriate.
For example, as shown in Figure 5, the cross-sectional shape of the projection 70 may be formed in an L-shape. In this case, the contact portion 72 is formed to protrude in only one direction (here, to the left in the figure) from the projection 71 in the Y-axis direction.

Furthermore, in the above embodiment, as shown in Figure 3, the cross-sectional shape of the projection 70 was an inverted T-shape protruding from the inner circumferential surface of the flat portion 61. However, it may also be a T-shape protruding from the inner circumferential surface of the flat portion 62. In this case, the T-shaped projection 70 contacts the outer circumferential surface of the first wire member 30 opposite to the outer circumferential surface that the inverted T-shaped projection 70 contacts.

In the above embodiment, the protruding body 70 was formed to extend continuously along the axial direction of the cylindrical member 50, but this is not limited to this configuration. For example, the protruding body 70 may be provided to extend intermittently along the axial direction of the cylindrical member 50. That is, the protruding body 70 may be provided partially at predetermined intervals along the axial direction of the cylindrical member 50.

In the above embodiment, one projection 70 is provided on the inner circumferential surface of the cylindrical member 50, but the invention is not limited to this. For example, multiple projections 70 may be provided on the inner circumferential surface of the cylindrical member 50. For example, a projection 70 may be provided on the inner circumferential surface of the flat portion 61, and another projection 70 may be provided on the inner circumferential surface of the flat portion 62. In this case, the two projections 70 may or may not face each other. Furthermore, the cross-sectional shapes of the two projections 70 may be the same or different.

In the cylindrical member 50 of the above embodiment, the peripheral wall 60 and the protruding body 70 may be made of separate parts.
The configuration of the first wire member 30 in the above embodiment is not particularly limited.

In the first wire member 30 of the above embodiment, the electromagnetic shielding member is embodied in the braided member 35, but the invention is not limited to this. For example, the electromagnetic shielding member in the first wire member 30 may be embodied in metal foil. Furthermore, the electromagnetic shielding member in the first wire member 30 may be omitted.

In the above embodiment, the number of wires 31 in the first wire member 30 is not particularly limited, and the number of wires 31 can be changed according to the specifications of the vehicle V. For example, the number of wires 31 in the first wire member 30 may be one, or it may be three or more.

* The first wire member 30 of the above embodiment may be provided with a bundling member for bundling multiple wires 31. For example, adhesive tape or cable ties can be used as the bundling member.

The configuration of the second wire member 40 in the above embodiment is not particularly limited.
In the above embodiment, the number of wires 41 in the second wire member 40 is not particularly limited, and the number of wires 41 can be changed according to the specifications of the vehicle V. For example, the number of wires 41 in the second wire member 40 may be two or more.

The configuration of the wire member 20 in the above embodiment is not particularly limited. For example, the wire member 20 may include a first wire member 30, a second wire member 40, and a third wire member having different external dimensions from each of the first and second wire members 30 and 40.

The arrangement of electrical devices M1, M2, M3, and M4 in vehicle V is not limited to the above embodiment and may be changed as appropriate depending on the configuration of vehicle V.
The embodiments disclosed herein should be considered in all respects to be illustrative and not restrictive. The scope of the present invention is indicated by the claims, not in the sense described above, and all modifications within the sense and scope equivalent to the claims are intended.

10 Wire harness 20 Wire component 30 First wire component 31 Electric wire (first electric wire)
32 Core wire 33 Insulation coating 35 Braided component (electromagnetic shielding component)
40. Second wire component 41. Electric wire (second wire)
42 Core wire 43 Insulation coating 50 Cylindrical member 60 Peripheral wall 61, 62 Flat section 63, 64 Semi-circular section 70 Protruding section 71 Projection 72 Contact section 73 Contact surface D1 Maximum dimension D2 Maximum dimension L1 Shortest distance M1, M2, M3, M4 Electrical equipment T1 Thickness T2 Thickness T3 Thickness V Vehicle

Claims (9)

A cylindrical member and
A first electric wire member that penetrates the cylindrical member,
The device comprises a second wire member that penetrates the cylindrical member and has different external dimensions from the first wire member,
The external dimensions of the first wire member are smaller than the external dimensions of the second wire member in the first direction.
The cylindrical member is provided with a projection that protrudes from the inner circumferential surface of the cylindrical member in the first direction and is capable of contacting the outer circumferential surface of the first electric wire member.
The protruding body has a projection that extends radially inward from the inner circumferential surface of the cylindrical member, and a contact portion provided at the tip of the projection that is capable of contacting the outer circumferential surface of the first electric wire member.
The contact portion extends in a second direction perpendicular to the first direction in which the protruding portion extends.
Wire harness. The wire harness according to claim 1, wherein the protruding member is provided in the space located near the first electric wire member within the internal space of the cylindrical member. The wire harness according to claim 1, wherein the protruding member extends along the axial direction of the cylindrical member over the entire axial length of the cylindrical member. The cylindrical member has a cylindrical peripheral wall that surrounds the outer circumference of the first wire member and the outer circumference of the second wire member.
The wire harness according to claim 1, wherein the protruding body is provided on the inner surface of the peripheral wall and is formed integrally with the peripheral wall. The contact portion extends in the second direction from both sides of the protruding tip of the protruding portion,
The wire harness according to claim 1, wherein the cross-sectional shape of the protruding body is formed in a T-shape or an inverted T-shape. The thickness of the protrusion is equal to the thickness of the peripheral wall.
The wire harness according to claim 4, wherein the thickness of the contact portion is equal to the thickness of the peripheral wall. The first wire member and the second wire member are arranged side by side along a second direction perpendicular to the first direction.
The cylindrical member has a cylindrical peripheral wall that surrounds the outer circumference of the first wire member and the outer circumference of the second wire member.
The cross-sectional shape of the peripheral wall is formed to be a flattened shape that is longer in the second direction than in the first direction.
The wire harness according to claim 1, wherein the protruding body protrudes from the inner surface of the peripheral wall in the first direction. The cross-sectional shape of the peripheral wall is formed in an oval shape having two flat portions extending parallel to each other in the second direction and two semicircular arc portions connecting the two flat portions and facing each other in the second direction.
The wire harness according to claim 7, wherein the protruding body protrudes from the inner circumferential surface of the flat portion in the first direction. The first wire member comprises a plurality of first wires and a cylindrical electromagnetic shielding member that surrounds the outer circumference of the plurality of first wires.
The second wire member has a second wire whose outer diameter is larger than each of the plurality of first wires.
The external dimensions of the electromagnetic shielding member are smaller than the external dimensions of the second wire in the first direction.
The wire harness according to claim 7, wherein the protruding body is provided so as to be in contact with the outer circumferential surface of the electromagnetic shielding member.