wire harness

Abstract

One aspect of this disclosure provides a wire harness that enhances the protective function of the wire component. The wire harness (10) according to one aspect of this disclosure comprises: a wire component (20); a cylindrical outer component (30) covering the outer periphery of the wire component (20); a first path limiting member (40) fitted to the outer periphery of the outer component (30); and a second path limiting member (50) fitted to the outer periphery of the first path limiting member (40). The first path limiting member (40) has: a first main body portion (41) covering a portion of the outer periphery of the outer component (30); and a first insertion port (42) formed by two circumferential ends (44) in the first main body portion (41), configured to allow insertion of the outer component (30). The second path limiting member (50) has: a second main body (51) that covers a portion of the outer periphery of the first path limiting member (40); and a second insertion port (52) formed by the two circumferential ends (54) in the second main body (51), configured to allow insertion of the first path limiting member (40).

Description

Technical Field

[0001] This disclosure relates to wire harnesses. Background Technology

[0002] Previously, it was known that wire harnesses had a corrugated tube and a path limiting member, the corrugated tube covering the outer periphery of the wire members and the path limiting member covering a portion of the circumferential direction of the corrugated tube and limiting the path of the wire members (see, for example, Patent Document 1).

[0003] Patent Document 1 describes a wire harness with a corrugated tube having a slit formed along its length. The path limiting member includes a path maintaining member disposed along the outer periphery of the corrugated tube and an assembly member disposed within the slit. The assembly member is configured to engage with both the inner periphery of the slit and the outer periphery of the path maintaining member. By securing the corrugated tube, the path maintaining member, and the assembly member using a band wrapping or similar method, the path of the wire component is limited.

[0004] Furthermore, considering the following structure: an integrated bellows and path limiting components are, for example, centrally wound and held in place by a belt clamp, which is then fixed to the vehicle body, thereby fixing the wiring harness to the vehicle body.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2013-55760 Summary of the Invention

[0008] The problem that the invention aims to solve

[0009] However, in the wiring harness described above, only a single path-maintaining member is arranged along the outer periphery of the corrugated pipe, which may result in low bending stiffness. This low bending stiffness of the path-maintaining member can cause the wire component to detach from the path. Furthermore, in the wiring harness described above, since only a single path-maintaining member is arranged along the outer periphery of the corrugated pipe, the temperature of the wire component may easily rise, for example, when placed near a heat source in a vehicle. Thus, in the wiring harness described above, there is a problem of low protection function for the wire component.

[0010] The purpose of this disclosure is to provide a wire harness that can improve the protection of electrical components.

[0011] Solution for solving the problem

[0012] The wire harness disclosed herein comprises: a wire member; a cylindrical outer member covering the outer periphery of the wire member; a first path limiting member fitted to the outer periphery of the outer member; and a second path limiting member fitted to the outer periphery of the first path limiting member. The first path limiting member has: a first main body portion covering a portion of the outer periphery of the outer member; and a first insertion port formed at both circumferential ends of the first main body portion, extending along and throughout the length direction of the first path limiting member, configured to allow insertion into the outer member. The second path limiting member has: a second main body portion covering a portion of the outer periphery of the first path limiting member; and a second insertion port formed at both circumferential ends of the second main body portion, extending along and throughout the length direction of the second path limiting member, configured to allow insertion into the first path limiting member.

[0013] Invention Effects

[0014] The wiring harness disclosed herein can improve the protective function of electrical components. Attached Figure Description

[0015] Figure 1 This is a schematic structural diagram illustrating a wire harness according to one embodiment.

[0016] Figure 2 This is a cross-sectional view showing a portion of a wire harness according to one embodiment.

[0017] Figure 3 This is a side view showing a portion of a wiring harness according to one embodiment.

[0018] Figure 4 This is a partially exploded perspective view showing a wire harness according to one embodiment.

[0019] Figure 5 This is a side view showing a portion of a wire harness, illustrating another example.

[0020] Figure 6 This is a side view showing a portion of a wire harness, illustrating another example.

[0021] Figure 7 This is a side view showing a portion of a wire harness, illustrating another example.

[0022] Figure 8 This is a cross-sectional view showing a portion of a wire harness, illustrating another example. Detailed Implementation

[0023] [Description of embodiments of this disclosure]

[0024] The embodiments of this disclosure are first described in detail.

[0025] The wire harness disclosed herein,

[0026] [1] The device comprises: a wire member; a cylindrical outer member covering the outer periphery of the wire member; a first path limiting member fitted to the outer periphery of the outer member; and a second path limiting member fitted to the outer periphery of the first path limiting member, the first path limiting member having: a first main body covering a portion of the outer periphery of the outer member; and a first insertion port formed at both circumferential ends of the first main body extending along and throughout the length direction of the first path limiting member, configured to allow insertion of the outer member; the second path limiting member having: a second main body covering a portion of the outer periphery of the first path limiting member; and a second insertion port formed at both circumferential ends of the second main body extending along and throughout the length direction of the second path limiting member, configured to allow insertion of the first path limiting member.

[0027] According to this structure, a first path limiting member can be installed on the outer periphery of the outer component through a first insertion port. Furthermore, a second path limiting member can be installed on the outer periphery of the first path limiting member through a second insertion port. Because the first and second path limiting members are double-mounted on the outer periphery of the outer component, the bending rigidity of the wiring harness in this part can be improved, for example. Therefore, it is possible to suppress the detachment of the wire component from the path. Additionally, because the first and second path limiting members are double-mounted on the outer periphery of the outer component, the temperature rise of the wire component can be suppressed, for example, when this part is located near a heat source of the vehicle. Thus, the protective function of the wire component can be improved.

[0028] [2] Preferably, the second path limiting member is made of metal.

[0029] According to this structure, since the second path limiting member is made of metal, the temperature rise of the wire component can be further suppressed, for example, when this part is located near a heat source of the vehicle.

[0030] [3] Preferably, the first path limiting member is made of resin.

[0031] According to this structure, because the first path limiting member is made of resin, it can suppress wear caused by friction between the outer component and the metal component. That is, when the first path limiting member is made of metal, it is possible for the outer component to wear easily due to friction with the metal first path limiting member, but this situation can be avoided.

[0032] [4] Preferably, the second path limiting member is made of resin and is colored.

[0033] According to this structure, because the second path limiting member is made of resin and is colored, operators can identify the type of wire harness by its color. Therefore, in cases where the wire component includes high-voltage wires, it can draw the operator's attention to prevent accidental cutting of the wire component. Furthermore, because the second path limiting member is made of resin, a painting process is unnecessary; it can be easily manufactured, for example, by mixing a coating into the resin material and molding it. That is, while a metal second path limiting member would require a painting process after molding, this can be avoided, making manufacturing easier. Additionally, for example, in the case of a second path limiting member that is painted after molding, the color cannot be visually identified when worn, but this can be avoided, improving durability.

[0034] [5] Preferably, the second path limiting member is shorter than the first path limiting member.

[0035] According to this structure, because the second path limiting member is shorter than the first path limiting member, the bending stiffness of the wire harness can be locally increased, for example, at the location where the second path limiting member is configured. Therefore, the bending stiffness of the wire harness can be further increased locally only at the particularly needed locations, and the overall wire harness can be lightweight.

[0036] [6] Multiple second path limiting members are assembled on the first path limiting member, and the multiple second path limiting members are separated from each other in the length direction of the first path limiting member.

[0037] According to this structure, the bending stiffness of the wire harness can be locally increased at multiple locations where the second path limiting member is configured, for example. Therefore, the bending stiffness of the wire harness can be further increased locally only at multiple locations where it is particularly needed, and the overall wire harness can be lightweight.

[0038] [7] Preferably, the first path limiting member is shorter than the second path limiting member.

[0039] According to this structure, because the first path limiting member is shorter than the second path limiting member, the bending stiffness of the wiring harness can be locally increased, for example, at the location where the first path limiting member is disposed. Therefore, the bending stiffness of the wiring harness can be further increased only locally at areas where it is particularly needed, and the overall weight of the wiring harness can be reduced. Furthermore, because heat transfer to the inward side is difficult in areas where an air layer forms between the outer component and the second path limiting member, the temperature rise of the wiring components can be further suppressed, for example, when disposed near a heat source of the vehicle.

[0040] [8] Preferably, a plurality of the first path limiting members are assembled on the outer component, the plurality of the first path limiting members are separated from each other in the length direction of the outer component, and the second path limiting members are assembled throughout the plurality of the first path limiting members.

[0041] According to this structure, the bending stiffness of the wire harness can be locally increased at multiple locations where the first path limiting member is configured. Therefore, for example, the bending stiffness of the wire harness can be further increased locally only at multiple locations where it is particularly needed, and the overall wire harness can be made lighter.

[0042] [9] Preferably, at least one of the first path limiting member and the second path limiting member has a protrusion that protrudes from the first main body portion or the second main body portion.

[0043] According to this structure, since at least one of the first path limiting member and the second path limiting member has a protrusion extending from the first main body or the second main body, the bending stiffness of at least one of the first path limiting member and the second path limiting member can be improved. Therefore, it is possible to more effectively suppress the detachment of the wire component from the path.

[0044]

[10] Preferably, the protrusion includes: a first protrusion protruding from the first main body portion toward the second main body portion; and a second protrusion protruding from the second main body portion toward the first main body portion, wherein the first protrusion and the second protrusion are in contact.

[0045] According to this structure, since the first protrusion protruding from the first main body towards the second main body and the second protrusion protruding from the second main body towards the first main body can contact each other, the circumferential rotation of the second path limiting member relative to the first path limiting member can be suppressed. Furthermore, since the area between the first and second main bodies where the first and second protrusions are not provided forms an air layer that is difficult to transfer heat, the temperature rise of the wiring components can be further suppressed, for example, in situations where the wiring is positioned close to a heat source of a vehicle.

[0046]

[11] Preferably, the second path limiting member is assembled to the first path limiting member in such a way that the orientation of the second insertion port is different from the orientation of the first insertion port.

[0047] According to this structure, because the second path limiting member is assembled to the first path limiting member with the second insertion port facing a different direction than the first insertion port, the direction in which the bending stiffness of the wire harness decreases is not concentrated in one direction. That is, when the orientation of the second insertion port is the same as the orientation of the first insertion port, it is possible that the bending stiffness of the wire harness would decrease concentratedly in that direction, but this situation can be avoided. In other words, by adjusting the orientation of the first insertion port and the orientation of the second insertion port, the direction in which the bending stiffness of the wire harness increases or decreases can be adjusted to the desired direction.

[0048]

[12] Preferably, the first path limiting member has a pair of retaining protrusions that protrude from the inner surface of the first body toward the outer member and contact the outer surface of the outer member.

[0049] According to this structure, since the first path limiting member has a pair of retaining protrusions that protrude from the inner surface of the first main body toward the outer component and contact the outer surface of the outer component, it is possible to prevent the first path limiting member from detaching from the outer component through the first insertion port.

[0050]

[13] Preferably, the retaining protrusion protrudes from the inner surfaces of the two circumferential ends of the first main body portion.

[0051] According to this structure, for example, compared to the case where the protrusion protrudes slightly from the inner surface of the first main body portion at both ends in the circumferential direction, the first path limiting member can be more effectively prevented from detaching from the outer component through the first insertion port.

[0052] [Details of the embodiments of this disclosure]

[0053] Specific examples of the wire harness of this disclosure are described below with reference to the accompanying drawings. In the drawings, for ease of explanation, sometimes a portion of the structure is shown enlarged or simplified. Furthermore, the dimensional ratios of the various parts sometimes differ in the drawings. Moreover, this disclosure is not limited to these examples, but is intended, through the claims, to include all modifications within the meaning and scope equivalent to the claims. The term "orthogonal" in this specification includes not only strictly orthogonal cases, but also generally orthogonal cases within the scope of the effects achieved in this embodiment. Similarly, the terms "circle" and "arc" in this specification include not only strictly circular or arc cases, but also generally circular or arc cases within the scope of the effects achieved in this embodiment.

[0054] (Overall structure of wire harness 10)

[0055] Figure 1The wiring harness 10 shown connects two or more electrical devices. For example, the wiring harness 10 connects an inverter 11 located at the front of a vehicle V, such as a hybrid vehicle or electric vehicle, to a high-voltage battery 12 located at the rear of the vehicle V, closer to the inverter 11. The wiring harness 10 is laid out, for example, passing under the floor of the vehicle V. For instance, the middle portion of the wiring harness 10 along its length is laid out outside the vehicle compartment, such as under the floor of the vehicle V.

[0056] Inverter 11 is connected to an electric motor (not shown) for driving the wheels, which serves as the power source for the vehicle. Inverter 11 generates alternating current from the direct current (DC) power of high-voltage battery 12 and supplies this AC power to the electric motor. High-voltage battery 12 is, for example, a battery capable of supplying several hundred volts.

[0057] like Figure 2 As shown, the wiring harness 10 includes a wire member 20 that electrically connects the aforementioned electrical devices to each other, and a cylindrical outer casing member 30 that covers the outer periphery of the wire member 20. Furthermore, the wiring harness 10 includes a first path limiting member 40 mounted on the outer periphery of the outer casing member 30 and a second path limiting member 50 mounted on the outer periphery of the first path limiting member 40. The first path limiting member 40 and the second path limiting member 50 limit the path of the wire member 20. Specifically, the first path limiting member 40 and the second path limiting member 50 act in a manner that makes the wire member 20 less prone to bending than a wire member 20 without the first path limiting member 40 and the second path limiting member 50 mounted, thereby suppressing deviation of the wire member 20 from its path.

[0058] (Structure of electrical component 20)

[0059] The wiring component 20 has one or more wires 21 and a braided component 24 that covers the outer circumference of each wire 21. In this embodiment, the wiring component 20 has two wires 21. One end of the wiring component 20 is connected to the inverter 11 via connector C1, and the other end is connected to the high-voltage battery 12 via connector C2. The wiring component 20 is, for example, formed in an elongated shape extending in the longitudinal direction of the vehicle. The wires 21 are, for example, high-voltage wires capable of handling high voltage and high current. The wires 21 can be, for example, non-electromagnetic wires without electromagnetic shielding or shielded wires with electromagnetic shielding.

[0060] (Structure of wire 21)

[0061] like Figure 2 As shown, the wire 21 is a sheathed wire having a core wire 22 made of conductor and an insulating sheath 23 covering the outer periphery of the core wire 22.

[0062] (Structure of core wire 22)

[0063] As the core wire 22, for example, a stranded wire formed by twisting multiple metal wires together, a cylindrical conductor consisting of a single metal rod with a solid internal structure, or a cylindrical conductor with a hollow internal structure can be used. Alternatively, a core wire combining various conductors such as stranded wire, cylindrical conductor, and tubular conductor can also be used as the core wire 22. Examples of cylindrical conductors include single-core wires and busbars. In this embodiment, the core wire 22 is a stranded wire. As the material for the core wire 22, copper-based or aluminum-based metal materials can be used, for example.

[0064] The cross-sectional shape (hereinafter referred to as the cross-sectional shape) of the core wire 22, which is cut by a plane orthogonal to the length direction of the core wire 22, i.e., the length direction of the wire 21, can be set to any shape. The cross-sectional shape of the core wire 22 can be formed as a circle, a semi-circle, a polygon, a square, a flat shape, etc. In this embodiment, the cross-sectional shape of the core wire 22 is formed as a circle.

[0065] (Structure of insulating covering part 23)

[0066] The insulating covering portion 23 covers the entire circumference of the outer periphery of the core wire 22, for example. The insulating covering portion 23 is made of an insulating material such as synthetic resin. For example, a synthetic resin with cross-linked polyethylene, cross-linked polypropylene, or other polyolefin resins as its main component can be used as the material for the insulating covering portion 23. Furthermore, a single material can be used as the material for the insulating covering portion 23, or two or more materials can be appropriately combined.

[0067] (Structure of braided component 24)

[0068] The braided member 24 is, for example, formed in a cylindrical shape that covers the outer periphery of each wire 21. The braided member 24 is configured to cover the outer periphery of each wire 21 substantially throughout its length. As the braided member 24, a braided wire made of multiple metal wires or a braided wire made of a combination of metal wires and resin wires can be used. As the material of the metal wires, copper-based, aluminum-based, or other similar metal materials can be used. (Illustrations omitted, but the braided member 24 is grounded, for example, in each connector C1, C2, etc.)

[0069] (Structure of external component 30)

[0070] like Figures 2-4 As shown, the outer casing 30 is cylindrical, covering the entire circumferential periphery of the wire component 20. The outer casing 30 is circumferentially sealed. For example, the outer casing 30 is configured to cover a portion of the outer periphery of the wire component 20 along its length. Figure 4As shown, the outer casing 30 of this embodiment is a bellows with a serpentine structure in which annular protrusions 31 and annular recesses 32 are alternately connected along its length. The outer casing 30 is flexible.

[0071] The material used for the outer component 30 can be a conductive resin material or a non-conductive resin material. For example, synthetic resins such as polyolefins, polyamides, polyesters, and ABS resins can be used as resin materials.

[0072] (Structure of the first path restriction component 40)

[0073] like Figure 2 and Figure 4 As shown, the first path limiting member 40 covers an area of ​​the outer periphery of the outer member 30 that is larger than half the circumferential direction of the outer member 30, and extends along the length direction of the outer member 30. In this embodiment, the first path limiting member 40 is fitted, for example, to the outer periphery of a portion of the outer member 30 that extends in a straight line, such as under the floor of a vehicle V, in the wiring path of the wiring member 20.

[0074] The first path limiting member 40 is made of resin. For example, synthetic resins such as polypropylene, polyamide, and polyoxymethylene can be used as the material for the first path limiting member 40. The first path limiting member 40 can be manufactured, for example, by known manufacturing methods such as extrusion molding and injection molding. In this embodiment, the cross-sectional shape of the first path limiting member 40 viewed from the longitudinal direction is constant. The first path limiting member 40 is an extruded product. The first path limiting member 40 is more rigid than the outer member 30. That is, the first path limiting member 40 is set to be less prone to bending than the outer member 30. In other words, the bending stiffness of the first path limiting member 40 is set to be higher than that of the outer member 30.

[0075] like Figure 2 As shown, the first path limiting member 40 has a first main body portion 41, a first insertion port 42, and a first protrusion 43 as a protrusion. The first main body portion 41 is formed to cover an area of ​​the outer periphery of the outer member 30 that is larger than half the circumferential direction of the outer member 30. The first insertion port 42 is formed through the two circumferential ends 44 of the first main body portion 41, and extends along the length direction of the first path limiting member 40 and throughout the entire length direction, configured to allow the outer member 30 to be inserted.

[0076] The first protrusion 43 protrudes from the outer periphery of the first main body 41 and extends along the length direction of the first path limiting member 40.

[0077] In detail, a plurality of first protrusions 43 are provided circumferentially on the first main body portion 41. In this embodiment, two first protrusions 43 are provided on one side and two on the other side of the first main body portion 41 closer to the circumferential center. In addition, the first path limiting member 40 in this embodiment has a first groove 45. The first groove 45 is recessed from the inner circumference of the first main body portion 41 at a position corresponding to the first protrusions 43 and extends along the length direction of the first path limiting member 40. That is, the first protrusions 43 are formed to extend outward from the first main body portion 41 while keeping the thickness of the first main body portion 41 substantially constant, and the first grooves 45 are recessed in proportion to the extension amount of the first protrusions 43.

[0078] Additionally, the first path limiting member 40 has a pair of retaining protrusions 46 that protrude toward the inserted outer member 30 and contact the outer surface of the outer member 30, more specifically, the outer surface of the annular protrusion 31. The retaining protrusions 46 protrude from the inner surfaces of the two circumferential ends 44 in the first main body portion 41. The cross-sectional shape of the retaining protrusions 46 is, for example, semi-circular. Each retaining protrusion 46 extends integrally along the length direction of the first path limiting member 40.

[0079] The first insertion port 42 extends along the entire length of the first path limiting member 40. The opening width of the first insertion port 42, i.e., the shortest distance between the two ends 44 in the circumferential direction of the first main body 41, is less than the outer diameter of the outer member 30.

[0080] When the outer component 30 is inserted into the first insertion port 42 from a direction orthogonal to the length direction, the first path limiting member 40 elastically deforms, and the opening width of the first insertion port 42 increases. When the outer component 30 is inserted into the interior of the first path limiting member 40, the first path limiting member 40 elastically returns to its original shape. Therefore, because the opening width of the first insertion port 42 is smaller than the outer diameter of the outer component 30, the first path limiting member 40 is fitted onto the outer component 30.

[0081] (Structure of the second path restriction component 50)

[0082] like Figure 2 and Figure 4 As shown, the second path limiting member 50 covers an area of ​​the outer periphery of the first path limiting member 40 that is larger than half the circumferential size of the first path limiting member 40, and extends along the length direction of the first path limiting member 40.

[0083] like Figure 3As shown, the second path limiting member 50 is shorter than the first path limiting member 40. Furthermore, the second path limiting member 50 is fitted to the central portion of the first path limiting member 40 along its length. That is, the second path limiting member 50 is fitted to the first path limiting member 40 in a manner that does not cover the two ends of the first path limiting member 40 along its length.

[0084] The second path limiting member 50 is made of resin. Other materials that can be used for the second path limiting member 50 include synthetic resins such as polypropylene, polyamide, and polyoxymethylene. The second path limiting member 50 can be manufactured using known manufacturing methods such as extrusion molding and injection molding. In this embodiment, the cross-sectional shape of the second path limiting member 50 viewed from the longitudinal direction is constant. The second path limiting member 50 is an extruded product. The second path limiting member 50 is more rigid than the outer member 30. That is, the second path limiting member 50 is set to be less prone to bending than the outer member 30. In other words, the bending stiffness of the second path limiting member 50 is set to be higher than that of the outer member 30.

[0085] Furthermore, the second path limiting member 50 is colored. In this embodiment, the second path limiting member 50 is formed by mixing a coating into a resin material. In other words, the second path limiting member 50 is made of a colored synthetic resin material. The color of the second path limiting member 50 is set so that an operator can identify that the wire 21 included in the wire component 20 of the wiring harness 10 is a high-voltage wire.

[0086] like Figure 2 As shown, the second path limiting member 50 has a second main body portion 51, a second insertion port 52, and a second protrusion 53 as a protrusion. The second main body portion 51 is configured to cover approximately the entire outer periphery of the first path limiting member 40. The second insertion port 52 is formed through two circumferential ends 54 in the second main body portion 51, extends along the length direction of the second path limiting member 50 and throughout the entire length direction, and is configured to allow the first path limiting member 40 to be inserted.

[0087] The second protrusion 53 protrudes from the inner periphery of the second main body 51 and extends along the length direction of the second path limiting member 50.

[0088] In detail, multiple second protrusions 53 are provided circumferentially on the second main body portion 51. In this embodiment, two second protrusions 53 are provided on one side and two on the other side of the second main body portion 51 closer to the circumferential center. Furthermore, the second protrusions 53 are provided at both ends 54 of the second main body portion 51 circumferentially. Additionally, the second protrusion 53 is provided at the circumferential center of the second main body portion 51. Furthermore, the second path limiting member 50 of this embodiment has a second groove 55. The second groove 55 is recessed from the outer periphery of the second main body portion 51 at a position corresponding to the second protrusions 53 and extends along the length direction of the second path limiting member 50. That is, the second protrusions 53 are formed to extend inwards from the second main body portion 51 while maintaining the thickness of the second main body portion 51 at a substantially constant state, and the second groove 55 is recessed corresponding to the extension amount of the second protrusions 53.

[0089] The first protrusion 43 protrudes toward the second main body 51. The top of the first protrusion 43 is configured to contact the second main body 51. Similarly, the second protrusion 53 protrudes toward the first main body 41. The top of the second protrusion 53 is configured to contact the first main body 41. Furthermore, a portion of the first protrusion 43 and the second protrusion 53 can make circumferential contact with the first path limiting member 40 and the second path limiting member 50. In this embodiment, a portion of the second protrusion 53 contacts the first protrusion 43 in one direction relative to the first protrusion 43 in the circumferential direction of the first path limiting member 40. Additionally, a portion of the second protrusion 53 contacts the first protrusion 43 in another direction relative to the first path limiting member 40 in the circumferential direction. Thus, the second path limiting member 50 is restricted from rotating circumferentially relative to the first path limiting member 40.

[0090] The second insertion port 52 extends along the entire length of the second path limiting member 50. The opening width of the second insertion port 52, that is, the shortest distance between the two ends 54 in the circumferential direction of the second main body 51, is less than the maximum outer diameter of the first path limiting member 40.

[0091] Furthermore, the second path limiting member 50 is assembled to the first path limiting member 40 such that the orientation of the second insertion port 52 is consistent with the orientation of the first insertion port 42.

[0092] When the first path limiting member 40 is inserted into the second insertion port 52 from a direction orthogonal to the length direction, the second path limiting member 50 elastically deforms, and the opening width of the second insertion port 52 increases. When the first path limiting member 40 is inserted into the interior of the second path limiting member 50, the second path limiting member 50 elastically returns to its original shape. Therefore, because the opening width of the second insertion port 52 is smaller than the outer diameter of the first path limiting member 40, the second path limiting member 50 is fitted onto the first path limiting member 40.

[0093] The function of this embodiment will be explained.

[0094] According to the wiring harness 10 of this embodiment, a first path limiting member 40 can be installed on the outer periphery of the outer component 30 through the first insertion port 42. In other words, the first path limiting member 40 can be assembled on the outer component 30 in a direction orthogonal to the length direction of the outer component 30. Furthermore, a second path limiting member 50 can be installed on the outer periphery of the first path limiting member 40 through the second insertion port 52. In other words, the second path limiting member 50 can be assembled on the first path limiting member 40 in a direction orthogonal to the length direction of the first path limiting member 40.

[0095] Furthermore, at the location where the first path limiting member 40 and the second path limiting member 50 are both mounted on the outer periphery of the outer member 30, bending of the wire harness 10 can be suppressed even if, for example, vibration or some external force is applied.

[0096] The effects of this implementation method will be explained.

[0097] (1) The first path limiting member 40 can be installed on the outer periphery of the outer component 30 through the first insertion port 42. Furthermore, the second path limiting member 50 can be installed on the outer periphery of the first path limiting member 40 through the second insertion port 52. Because the first path limiting member 40 and the second path limiting member 50 are double-mounted on the outer periphery of the outer component 30, the bending rigidity of this portion of the wire harness 10 can be improved, for example. Therefore, the detachment of the wire component 20 from the path can be suppressed. Additionally, because the first path limiting member 40 and the second path limiting member 50 are double-mounted on the outer periphery of the outer component 30, the temperature rise of the wire component 20 can be suppressed, for example, when this portion is located near a heat source of the vehicle V. Thus, the protection function of the wire component 20 can be improved in the wire harness 10 of this embodiment.

[0098] (2) Because the first path limiting member 40 is made of resin, it can suppress wear caused by friction between the outer component 30 and the metal component. That is, when the first path limiting member 40 is made of metal, the outer component 30 may wear easily due to friction with the metal first path limiting member 40, but this situation can be avoided.

[0099] (3) The second path limiting member 50 is made of resin and is colored, so, for example, an operator can identify the type of wire harness 10 by its color. Therefore, for example, in the case where the wire component 20 includes a high-voltage wire, it can draw attention to prevent the operator from accidentally cutting the wire component 20. In addition, because the second path limiting member 50 is made of resin, a painting process is not required, and it can be easily manufactured, for example, by mixing a coating into a resin material and molding it. That is, when the second path limiting member 50 is made of metal, a painting process is required after molding, but this situation can be avoided and it can be easily manufactured. In addition, for example, if the second path limiting member 50 is made by painting after molding, the color cannot be visually identified when it is worn, but this situation can be avoided and durability can be improved.

[0100] (4) Because the second path limiting member 50 is shorter than the first path limiting member 40, the bending stiffness of the wire harness 10 can be locally increased, for example, at the location where the second path limiting member 50 is configured. Therefore, the bending stiffness of the wire harness 10 can be locally increased only at the particularly needed locations, and the overall weight of the wire harness 10 can be reduced.

[0101] (5) The first path limiting member 40 has a first protrusion 43 that protrudes from the first main body 41. Additionally, the second path limiting member 50 has a second protrusion 53 that protrudes from the second main body 51. Therefore, the bending rigidity of the first path limiting member 40 and the second path limiting member 50 can be improved. Therefore, the detachment of the wire member 20 from the path can be further suppressed.

[0102] (6) The first protrusion 43 protruding from the first main body 41 toward the second main body 51 and the second protrusion 53 protruding from the second main body 51 toward the first main body 41 can contact each other. This suppresses the second path limiting member 50 from rotating circumferentially relative to the first path limiting member 40. Furthermore, the area between the first main body 41 and the second main body 51 where the first protrusion 43 and the second protrusion 53 are not provided becomes an air layer where heat transfer is difficult. Therefore, for example, in situations where it is positioned close to a heat source in the vehicle V, the temperature rise of the wire member 20 can be further suppressed.

[0103] (7) The first path limiting member 40 has a pair of retaining protrusions 46 that protrude from the inner surface of the first main body 41 toward the outer member 30 and contact the outer surface of the outer member 30, thus preventing the first path limiting member 40 from disengaging from the outer member 30 through the first insertion port 42.

[0104] (8) The protrusion 46 is retained to protrude from the inner surface of the two circumferential ends 44 in the first main body 41. Therefore, for example, compared to the case where the protrusion 46 protrudes from the inner surface of the first main body 41 at a position slightly away from the two circumferential ends 44, the first path limiting member 40 can be more effectively prevented from disengaging from the outer member 30 through the first insertion port 42.

[0105] <Variation Example>

[0106] This embodiment can be implemented with the following modifications. This embodiment and the following modifications can be combined with each other within the scope of technical inconsistency.

[0107] In the above embodiment, a first path limiting member 40 is equipped with a second path limiting member 50, but it is not limited to this and can also be configured to equip a first path limiting member 40 with a plurality of second path limiting members 50.

[0108] For example, such as Figure 5 As shown, it can also be configured such that two second path limiting members 50 are assembled on one first path limiting member 40, and the two second path limiting members 50 are separated from each other in the length direction of the first path limiting member 40.

[0109] In this way, for example, the bending stiffness of the wire harness 10 can be locally increased at multiple locations where the second path limiting member 50 is configured. Therefore, for example, the bending stiffness of the wire harness 10 can be further increased locally only at multiple locations where it is particularly needed, and the overall weight of the wire harness 10 can be reduced.

[0110] In the above embodiment, the second path limiting member 50 is configured to be shorter than the first path limiting member 40, but it is not limited to this. The length of the second path limiting member 50 may also be greater than the length of the first path limiting member 40.

[0111] For example, such as Figure 6 As shown, it can also be configured such that the second path limiting member 50 is higher than the first path limiting member 40, and is assembled to the first path limiting member 40 in such a way that it completely covers the length direction of the first path limiting member 40.

[0112] In this way, since the first path limiting member 40 is shorter than the second path limiting member 50, the bending stiffness of the wiring harness 10 can be locally increased, for example, at the location where the first path limiting member 40 is disposed. Therefore, for example, the bending stiffness of the wiring harness 10 can be locally increased only at the particularly needed locations, and the overall weight of the wiring harness 10 can be reduced. In addition, since heat transfer to the inward side is difficult in the area where an air layer forms between the outer component 30 and the second path limiting member 50, the temperature rise of the wire component 20 can be further suppressed, for example, when disposed in a position close to the heat source of the vehicle V.

[0113] Alternatively, for example, it can also be like Figure 7 The deformation is as shown. In this example, multiple first path limiting members 40 are assembled on the outer member 30. The multiple first path limiting members 40 are separated from each other in the length direction of the outer member 30. Furthermore, a second path limiting member 50 is assembled over the multiple first path limiting members 40. That is, the second path limiting member 50 is assembled on the multiple first path limiting members 40 in a manner that centrally covers the multiple first path limiting members 40.

[0114] In this way, the bending stiffness of the wire harness 10 can be locally increased at multiple locations where the first path limiting member 40 is configured. Therefore, for example, the bending stiffness of the wire harness 10 can be further increased locally only at multiple locations where it is particularly needed, and the overall weight of the wire harness 10 can be reduced.

[0115] In the above embodiment, the second path limiting member 50 is assembled to the first path limiting member 40 such that the orientation of the second insertion port 52 is the same as the orientation of the first insertion port 42. However, it is not limited to this and may also be configured such that the orientation of the second insertion port 52 is different.

[0116] For example, it can also be like Figure 8 The configuration shown is such that the second path limiting member 50 is fitted to the first path limiting member 40 with the second insertion port 52 facing a different direction than the first insertion port 42. In this example, the orientation of the second insertion port 52 is set to be opposite to the orientation of the first insertion port 42. Furthermore, the first insertion port 42 is covered by the second main body portion 51. However, the orientation of the second insertion port 52 may not be opposite to the orientation of the first insertion port 42.

[0117] In this way, the direction in which the bending stiffness of the wire harness 10 decreases is not concentrated in one direction. That is, when the orientation of the second insertion port 52 is the same as the orientation of the first insertion port 42, it is possible that the bending stiffness of the wire harness 10 would decrease concentratedly in that orientation, but this situation can be avoided. In other words, by adjusting the orientation of the first insertion port 42 and the orientation of the second insertion port 52, the direction in which the bending stiffness of the wire harness 10 increases or decreases can be adjusted to the desired direction. In addition, because the first insertion port 42 is covered by the second main body 51, the intrusion of foreign objects into the outer component 30 side of that part can be suppressed.

[0118] In the above embodiment, the first path limiting member 40 is made of resin, but it is not limited to this; for example, it may also be made of metal. For example, the first path limiting member 40 may also be made of a metal material such as iron, copper, or aluminum. When the first path limiting member 40 is made of metal, for example, when it is located near a heat source of the vehicle V, the temperature rise of the wire member 20 can be suppressed.

[0119] In the above embodiment, the second path limiting member 50 is made of resin, but it is not limited to this; for example, it can also be made of metal. For example, the second path limiting member 50 can also be made of a metal material such as iron, copper, or aluminum. When the second path limiting member 50 is made of metal, for example, when positioned close to a heat source in the vehicle V, the temperature rise of the wiring component 20 can be suppressed. Furthermore, if the first path limiting member 40 is made of resin and the second path limiting member 50 is made of metal, wear due to friction between the outer component 30 and the metal second path limiting member 50 can be suppressed, and the temperature rise of the wiring component 20 can also be suppressed. In particular, if the second path limiting member 50 is configured to be shorter than the first path limiting member 40 and does not cover the two ends of the first path limiting member 40 in the length direction, friction between the outer component 30 and the metal second path limiting member 50 can be further suppressed.

[0120] In the above embodiment, the second path limiting member 50 is colored and is configured such that the operator can identify that the wire 21 included in the wire component 20 is a high-voltage wire, but it is not limited to this. That is, the second path limiting member 50 may also be a color unrelated to the type of wire 21.

[0121] In the above embodiment, the first path limiting member 40 has a first protrusion 43 as a protrusion protruding from the first main body portion 41, but it is not limited to this and may also be configured not to have the first protrusion 43. Similarly, the second path limiting member 50 has a second protrusion 53 as a protrusion protruding from the second main body portion 51, but it is not limited to this and may also be configured not to have the second protrusion 53. Alternatively, the first path limiting member 40 may not have the first protrusion 43, and the second path limiting member 50 may not have the second protrusion 53.

[0122] Furthermore, the first protrusion 43 protrudes from the outer periphery of the first main body portion 41, but is not limited thereto; it may also protrude from the inner periphery of the first main body portion 41. Similarly, the second protrusion 53 protrudes from the inner periphery of the second main body portion 51, but is not limited thereto; it may also protrude from the outer periphery of the second main body portion 51. In the above embodiment, a portion of the first protrusion 43 and the second protrusion 53 may be in circumferential contact with the first path limiting member 40 and the second path limiting member 50, but is not limited thereto; they may also be configured not to be in contact. Furthermore, the number of the first protrusion 43 and the second protrusion 53 may also be varied.

[0123] In the above embodiment, the first path limiting member 40 has a first groove 45 at a position corresponding to the first protrusion 43, but it is not limited to this and may also be configured not to have the first groove 45.

[0124] In the above embodiment, the second path limiting member 50 has a second groove 55 at a position corresponding to the second protrusion 53, but it is not limited to this and may also be configured not to have a second groove 55.

[0125] In the above embodiment, the first path limiting member 40 has a retaining protrusion 46 that contacts the outer surface of the outer member 30, but it is not limited to this and may also be configured not to have the retaining protrusion 46. In addition, the retaining protrusion 46 may also be configured to protrude from the inner surface of the first main body portion 41 at a position slightly away from the two ends 44 in the circumferential direction.

[0126] In the above embodiment, the first path limiting member 40 and the second path limiting member 50 are more rigid than the outer member 30, but this is not the case; they may also be as rigid as or less than the outer member 30. That is, if the first path limiting member 40 and the second path limiting member 50 function in a way that makes the wire member 20 less flexible than the wire member 20 without the first path limiting member 40 and the second path limiting member 50 attached, they may not be more rigid than the outer member 30.

[0127] The outer component 30 may also have a metal layer containing a metallic material provided on the outer surface of the bellows. Such a metal layer can be provided, for example, by plating. The metal layer is preferably provided on the entire outer surface of the annular protrusion 31 and the annular recess 32 of the bellows. The outermost surface of the metal layer is preferably made of a metallic material such as aluminum with low emissivity. With such a structure, for example, when placed in a position close to a heat source of the vehicle, the internal temperature of the outer component 30, and consequently the temperature rise of the wiring component 20, can be suppressed.

[0128] The outer component 30 may also have a slit extending along its length. In this case, it is preferable to seal the outer component 30 circumferentially by wrapping a tape around its outer periphery, for example, to completely seal the slit throughout its length. This helps to suppress any reduction in the water-tightness of the outer component 30 with the slit.

[0129] The wire component 20 may have one wire 21 or more than three wires 21.

[0130] • The braided component 24 can also be omitted from the wire component 20.

[0131] The first path limiting member 40 and the second path limiting member 50 are not limited to being installed under the floor of the vehicle V. The first path limiting member 40 and the second path limiting member 50 can be installed in the carriage of the vehicle V as long as they are the straight sections extending in the wiring path of the wire member 20.

[0132] The first path limiting member 40 is sometimes referred to as the radially inner or minor-diameter path limiting member, and the second path limiting member 50 is sometimes referred to as the radially outer or major-diameter path limiting member.

[0133] [Appendix 1] As Figures 2 to 8 As shown, in several embodiments disclosed herein, the wire harness (10) can possess:

[0134] Electrical wiring components (20);

[0135] A cylindrical outer component (30) covers the outer periphery of the wire component (20);

[0136] The first path limiting member (40) has a predetermined length profile that can be a straight line profile and a predetermined cross-sectional profile that can be a C-shaped cross-sectional profile. For example, it is attached to the outer peripheral surface of the outer component (30) by a snap fastener, thereby constraining the length shape of the wire harness (10); and

[0137] The second path limiting member (50) has a predetermined length profile that can be a straight line profile and a predetermined cross-sectional profile that can be a C-shaped cross-sectional profile. For example, it is attached to the outer peripheral surface of the first path limiting member (40) by a snap fastener to limit the length shape of the wire harness (10).

[0138] [Appendix 2] As Figure 5 As shown, in several embodiments of this disclosure, the first path limiting member (40) may also be assembled to the wire harness (10) in a manner that covers a first length position and a second length position different from the first length position.

[0139] The wire harness (10) can have:

[0140] The second path limiting member (50) is assembled at the first length position to the first path limiting member (40); and

[0141] An additional second path limiting member (50) is fitted to the first path limiting member (40) at the second length position.

[0142] [Appendix 3] As Figure 3 , 5 As shown, in several embodiments of this disclosure, the second path limiting member (50) may also partially cover the first path limiting member (40) in the length direction.

[0143] [Appendix 4] such as Figure 6 , 7 As shown, in several embodiments of this disclosure, the second path limiting member (50) may completely cover the first path limiting member (40) in the length direction.

[0144] [Appendix 5] As Figure 7 As shown, in several embodiments disclosed herein, the wire harness (10) can possess:

[0145] The first path limiting member (40) is mounted on the outer component (30) at the first length position of the wire harness (10);

[0146] An additional first path limiting member (40) is fitted to the outer component (30) at a second length position of the wire harness (10) different from the first length position; and

[0147] The second path limiting member (50) is covered by the first path limiting member (40) at the first length position and the other first path limiting member (40) at the second length position.

[0148] [Appendix 6] such as Figure 2 , 4 As shown in Figures 8 and 9, among the various methods disclosed herein,

[0149] The outer surface of the first path limiting member (40) may also have a plurality of first protrusions (43) extending along the entire length of the first path limiting member (40) and projecting radially outward, and a smooth outer surface excluding the first protrusions (43).

[0150] The inner surface of the second path limiting member (50) may also have a plurality of second protrusions (53) extending along the entire length of the second path limiting member (50) and protruding radially inward, and a smooth inner surface other than the second protrusions (53).

[0151] Each of the first protrusions (43) of the first path limiting member (40) may also contact the smooth inner surface of the second path limiting member (50).

[0152] Each of the second protrusions (53) of the second path limiting member (50) may also contact the smooth outer surface of the first path limiting member (40).

[0153] An air layer may also be formed between the smooth outer surface of the first path limiting member (40) and the smooth inner surface of the second path limiting member (50).

[0154] [Appendix 7] as Figure 2 , 4 As shown in Figure 8, among the several methods disclosed herein, it can also be:

[0155] One or more first protrusions (43) of the first path limiting member (40) contact the corresponding second protrusion (53) of the second path limiting member (50).

[0156] [Appendix 8] such as Figure 8 As shown, in several embodiments of this disclosure, each of the first protrusions (43) of the first path limiting member (40) may contact a corresponding second protrusion (53) of the second path limiting member (50).

[0157] [Appendix 9] as Figure 2 , 4 As shown in ~7, in several embodiments of this disclosure, the outer surface of the outer component (30) may also include an exposed outer surface that is not covered by the first path limiting member (40) and the second path limiting member (50) and is exposed from the first insertion port (42) of the first path limiting member (40) and the second insertion port (52) of the second path limiting member (50).

[0158] [Appendix 10] As Figure 2 , 3 As shown in 5 to 7, in several embodiments of this disclosure, the highest position of the second path limiting member (50), which can be the end (54) of the second path limiting member (50), can also coincide in the height direction with the highest position of the outer member (30), which can be part of the outer surface of the outer member (30).

[0159] Explanation of reference numerals in the attached figures

[0160] 10 Wire Harness

[0161] 11 Inverter

[0162] 12 High-voltage batteries

[0163] 20. Electrical wiring components

[0164] 21 electrical wires

[0165] 22-core wire

[0166] 23 Insulation Covering Part

[0167] 24 Woven components

[0168] 30 External components

[0169] 31. Annular protrusion

[0170] 32. Annular recess

[0171] 40 First Path Restriction Component

[0172] 41 Main Body Section 1

[0173] 42 First insertion port

[0174] 43 First protrusion (protrusion)

[0175] 44 end

[0176] 45 First Groove Section

[0177] 46. ​​Maintain the protrusion.

[0178] 50 Second Path Restriction Component

[0179] 51. Main Body Section 2

[0180] 52 Second insertion port

[0181] 53. Second protrusion (protrusion)

[0182] 54 end

[0183] 55 Second Groove

[0184] C1 connector

[0185] C2 connector

[0186] V vehicle

Claims

1. A wire harness, comprising: Electrical wiring components; A cylindrical outer casing component covers the outer periphery of the wire component; A first path limiting component is assembled on the outer periphery of the outer component; and The second path limiting member is assembled on the outer periphery of the first path limiting member. The first path limiting member has: a first main body portion that covers a portion of the outer periphery of the outer component; and The first insertion port is formed at both circumferential ends of the first main body portion, extends along the length direction of the first path limiting member and throughout the entire length direction, and is configured to allow the insertion of the outer component. The outer surface of the first path limiting member has a plurality of first protrusions extending along the entire length of the first path limiting member and projecting radially outward, and a smooth outer surface excluding the first protrusions. The second path limiting member has: a second main body portion that covers a portion of the outer periphery of the first path limiting member; and The second insertion port is formed at both circumferential ends of the second main body portion, extends along the length direction of the second path limiting member and throughout that length direction, and is configured to allow insertion of the first path limiting member. The inner surface of the second path limiting member has a plurality of second protrusions extending along the entire length of the second path limiting member and projecting radially inward, and a smooth inner surface excluding the second protrusions. Each of the first protrusions of the first path limiting member contacts the smooth inner surface of the second path limiting member. Each of the second protrusions of the second path limiting member contacts the smooth outer surface of the first path limiting member. An air layer is formed between the smooth outer surface of the first path limiting member and the smooth inner surface of the second path limiting member.

2. The wire harness according to claim 1, wherein, The second path limiting component is made of metal.

3. The wire harness according to claim 2, wherein, The first path limiting component is made of resin.

4. The wire harness according to claim 1, wherein, The second path limiting member is made of resin and is colored.

5. The wire harness according to any one of claims 1 to 4, wherein, The second path limiting member is shorter than the first path limiting member.

6. The wire harness according to claim 5, wherein, The first path limiting member is equipped with a plurality of the second path limiting members. The plurality of the second path limiting members are separated from each other in the length direction of the first path limiting member.

7. The wire harness according to any one of claims 1 to 4, wherein, The first path limiting member is shorter than the second path limiting member.

8. The wire harness according to claim 7, wherein, The outer component is equipped with a plurality of the first path limiting components. The plurality of the first path limiting members are separated from each other along the length direction of the outer component. The second path limiting member is assembled over a plurality of the first path limiting members.

9. The wire harness according to any one of claims 1 to 4, wherein, The first protrusion and the second protrusion can make contact.

10. The wire harness according to any one of claims 1 to 4, wherein, The second path limiting member is assembled to the first path limiting member in such a way that the orientation of the second insertion port is different from the orientation of the first insertion port.

11. The wire harness according to any one of claims 1 to 4, wherein, The first path limiting member has a pair of retaining protrusions that protrude from the inner surface of the first main body toward the outer component and contact the outer surface of the outer component.

12. The wire harness according to claim 11, wherein, The retaining protrusion protrudes from the inner surfaces of the two circumferential ends of the first main body portion.

Images