WO2022153837A1 - Wire harness - Google Patents

Wire harness Download PDF

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Publication number
WO2022153837A1
WO2022153837A1 PCT/JP2021/048158 JP2021048158W WO2022153837A1 WO 2022153837 A1 WO2022153837 A1 WO 2022153837A1 JP 2021048158 W JP2021048158 W JP 2021048158W WO 2022153837 A1 WO2022153837 A1 WO 2022153837A1
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WO
WIPO (PCT)
Prior art keywords
corrugated tube
connector
wire harness
section
electric wires
Prior art date
Application number
PCT/JP2021/048158
Other languages
French (fr)
Japanese (ja)
Inventor
貴幸 篠木
Original Assignee
住友電装株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 住友電装株式会社 filed Critical 住友電装株式会社
Publication of WO2022153837A1 publication Critical patent/WO2022153837A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs

Definitions

  • This disclosure relates to wire harnesses.
  • Patent Document 1 discloses a technique in which two corrugated tubes are separated from each other in order to branch a part of an electric wire bundle which is a main trunk line, and a part of an electric wire (branch line) is pulled out from the electric wire bundle at the separated portion. ing.
  • the flexibility is the ease of bending the wire harness, and can be evaluated by, for example, the magnitude of the force required to bend the wire harness.
  • the wire harness of the present disclosure includes a first connector, a second connector, a plurality of electric wires that electrically connect the first connector and the second connector, and between the first connector and the second connector.
  • the concave-convex pitch in the first corrugated tube is a wire harness different from the concave-convex pitch in the second corrugated tube.
  • the flexibility of the wire harness can be adjusted by dividing it into a plurality of sections.
  • FIG. 1 is a plan view showing a wire harness according to the first embodiment.
  • FIG. 2 is a plan view showing a wire harness according to a modified example.
  • FIG. 3 is a plan view showing the wire harness according to the second embodiment.
  • FIG. 4 is an explanatory view showing a state in which the wire harness is fixed to an object to be arranged such as a vehicle.
  • the wire harness of this disclosure is as follows.
  • the first corrugated tube that covers the plurality of electric wires and the second corrugated tube that covers the plurality of electric wires in the second section between the first corrugated tube and the second connector are provided.
  • the uneven pitch in the 1 corrugated tube is a wire harness different from the uneven pitch in the second corrugated tube.
  • the flexibility of the wire harness can be adjusted by dividing it into a plurality of sections.
  • the uneven pitch in the second corrugated tube may be larger than the uneven pitch in the first corrugated tube.
  • the first section can be bent more easily than the second section.
  • the first electric wire is further formed in the first section.
  • a group of the first electric wires and a group of the second electric wires are branched at a branch portion between the first section and the second section, and a third section between the branch portion and the third connector.
  • a third corrugated tube may be further provided to cover the group of the second electric wires.
  • the uneven pitch in the third corrugated tube may be larger than both the uneven pitch in the first corrugated tube and the uneven pitch in the second corrugated tube.
  • the third section can be adjusted so as to be less likely to bend than the first section and the second section.
  • the diameter of each electric wire can be reduced as compared with the case where the high-voltage electric wire is included, the flexibility can be easily adjusted.
  • FIG. 1 is a plan view showing a wire harness 20.
  • the wire harness 20 includes a first connector 22, a second connector 24, a plurality of electric wires 30, a first corrugated tube 32, and a second corrugated tube 34.
  • a wire harness 20 is used as a wiring member that electrically connects a plurality of electric components to each other in a vehicle or the like.
  • the first connector 22 is a connector that maintains an electrical connection state to electrical components in a vehicle or the like.
  • the first connector 22 may be detachably connected to the electric component, or may be connected to the electrical component in a non-detachable state.
  • the electrical component may be an electronic control unit, a sensor, a motor, a switch, or the like.
  • the first connector 22 may be configured such that, for example, a terminal connected to the end of the electric wire 30 by crimping or the like is housed in a housing made of resin or the like.
  • the second connector 24 is a connector that maintains an electrical connection state to electrical components in a vehicle or the like, like the first connector 22 described above. By connecting the first connector 22 and the second connector 24 to separate electrical components, the separate electrical components are electrically connected via the wire harness 20.
  • Each of the plurality of electric wires 30 is, for example, an electric wire including a core wire and an insulating coating covering the core wire.
  • the core wire is a linear conductor formed of a conductive member such as metal.
  • the core wire is composed of one or a plurality of strands.
  • the insulating coating is an insulating portion that covers the periphery of the core wire, and is formed by extruding and coating a resin around the core wire.
  • the electric wire 30 may be an electric wire constituting a cable such as a shielded wire or a twisted wire.
  • the thicknesses of the plurality of electric wires 30 may be the same or may be different from each other.
  • the number of electric wires 30 is arbitrary.
  • the electric wire 30 may be a signal electric wire or a power electric wire.
  • the electric wire 30 may be a low voltage electric wire.
  • the low-voltage electric wire is a signal electric wire, a grounding electric wire, a low-voltage power supply electric wire, or the like, and may be, for example, an electric wire specified in JASO D611 (JP) 2014 version.
  • As the low voltage electric wire for example, an electric wire having a diameter of 7 mm or less may be used.
  • the high-voltage electric wire to be compared with the low-voltage electric wire may be, for example, the one specified in JASO D624 (JP) 2015 version.
  • the first connector 22 is connected to one end of the plurality of electric wires 30, and the second connector 24 is connected to the other end of the plurality of electric wires 30.
  • the plurality of electric wires 30 electrically connect the first connector 22 and the second connector 24.
  • the plurality of electric wires 30 are bundled into one.
  • the plurality of electric wires 30 may be kept in a bundled form by the first corrugated tube 32 and the second corrugated tube 34, or may be kept in a bundled form by another binding member (adhesive tape or the like).
  • the plurality of electric wires 30 may be bundled in a twisted state, or may be bundled without being twisted.
  • the first corrugated tube 32 is formed in a tube shape in which thin annular portions 32a and thick annular portions 32b are alternately connected.
  • the thin annular portion 32a is an annular portion
  • the thick annular portion 32b is a portion having an annular diameter larger than that of the thin annular portion 32a.
  • An annular step portion 32c is formed between the thin annular portion 32a and the thick annular portion 32b to connect the peripheral edge portion of the thick annular portion 32b and the peripheral edge portion of the thin annular portion 32a.
  • the annular step portion 32c may be connected to the thin annular portion 32a and the thick annular portion 32b at an angle.
  • the annular step portion 32c may extend in a direction orthogonal to the longitudinal direction of the first corrugated tube 32, or may be inclined with respect to the longitudinal direction.
  • the thin annular portion 34a corresponding to the thin annular portion 32a and the thick annular portion 34b corresponding to the thick annular portion 32b correspond to the annular step portion 32c. It is formed in a tube shape that is alternately connected via an annular step portion 34c.
  • the first corrugated tube 32 and the second corrugated tube 34 can be bent and deformed mainly by being deformed by the annular step portions 32c and 34c between the thin annular portions 32a and 34a and the thick annular portions 32b and 34b. ..
  • the corrugated tubes 32 and 34 are made of the same material, for example, a resin such as PP (polypropylene).
  • the corrugated tubes 32 and 34 may be made of different materials.
  • the thickness and thickness of the corrugated tubes 32 and 34, the diameter difference between the thin annular portion and the thick annular portion (that is, the height of the annular step portion) and the like may be the same or different.
  • the corrugated tubes 32 and 34 may be formed with slits for arranging the electric wires 30 inside. In this case, the slit may be kept closed by a tape wound around at least a part of the corrugated tubes 32, 34.
  • the first corrugated tube 32 is a first section E1 between the first connector 22 and the second connector 24, and covers a plurality of electric wires 30.
  • the second corrugated tube 34 is a second section E2 between the first corrugated tube 32 and the second connector 24, and covers a plurality of electric wires 30. That is, the first corrugated tube 32 covers the first section E1 of the electric wire 30 near the first connector 22. Further, the second corrugated tube 34 covers the section E2 of the electric wire 30 from the second connector 24.
  • the first corrugated tube 32 and the second corrugated tube 34 are separated from each other, but may be in contact with each other. Although the first corrugated tube 32 is separated from the first connector 22, it may be in contact with the first connector 22. Although the second corrugated tube 34 is separated from the second connector 24, it may be in contact with the second connector 24.
  • the uneven pitch P1 in the first corrugated tube 32 is different from the uneven pitch P2 in the second corrugated tube 34.
  • the uneven pitch is the length of one set of the thick annular portion and the thin annular portion in the longitudinal direction of the corrugated tube in a state where the corrugated tube is straight and has a natural length in which no force is applied in the compression and expansion directions. That's right.
  • the lower limit of the uneven pitch is, for example, 1.0 mm, preferably 1.5 mm, and more preferably 2.0 mm.
  • the upper limit of the uneven pitch is, for example, 20 mm, preferably 15 mm, and more preferably 10 mm.
  • the uneven pitch P2 in the second corrugated tube 34 is larger than the uneven pitch P1 in the first corrugated tube 32.
  • the corrugated tubes 32 and 34 are bent, the thin annular portions 32a and 34a and the thick annular portions 32b and 34b themselves are not easily deformed, and the annular step portions 32c and 34c are mainly deformed. Therefore, it is considered that the larger the number of annular step portions 32c and 34c per unit length, the easier it is for the corrugated tubes 32 and 34 to bend.
  • the smaller the uneven pitches P1 and P2 the larger the number of repetitions of the thin annular portions 32a and 34a and the thick annular portions 32b and 34b per unit length. Will increase.
  • the first corrugated tube 32 is easier to bend than the second corrugated tube 34, and conversely, the second corrugated tube 34 is better than the first corrugated tube 32. Is also hard to bend.
  • the wire harness 20 configured in this way, since the uneven pitches P1 and P2 are different between the first corrugated tube 32 and the second corrugated tube 34, the flexibility of the first corrugated tube 32 and the second corrugated tube 34 is increased. different. By making the uneven pitches P1 and P2 different in this way, the flexibility of the wire harness 20 can be adjusted by dividing it into a plurality of sections E1 and E2.
  • the first section E1 can be bent more easily than the second section E2. Therefore, for example, when the wire harness 20 is assembled to a vehicle or the like, the second section E2 is arranged along a straight line or a wiring path with few bends, and the first section E1 is arranged along a wiring path with a large bend. It can be easily arranged, and the wire harness 20 can be easily assembled.
  • the diameter of each electric wire 30 can be reduced. If the diameter of the individual electric wires 30 is small, the flexibility inherent in the individual electric wires 30 has little influence on the overall flexibility of the wire harness 20. Rather, the degree of freedom of movement of the plurality of electric wires 30 in the corrugated tubes 32 and 34 has a greater influence on the flexibility of the wire harness 20. Therefore, when the electric wire 30 is a low-voltage electric wire, the diameter of each electric wire 30 can be reduced, so that the flexibility can be easily adjusted by setting the filling rate.
  • FIG. 2 is a plan view showing the wire harness 20B according to the modified example.
  • the wire harness 20B according to this modification includes a first tape 42 wound around the first corrugated tube 32 and a second tape 44 wound around the second corrugated tube 34.
  • the first tape 42 and the second tape 44 may be continuous tapes or separate tapes.
  • the method of winding the first tape 42 around the first corrugated tube 32 and the method of winding the second tape 44 around the second corrugated tube 34 are different.
  • the winding method of the tapes 42 and 44 around the corrugated tubes 32 and 34 is different from, for example, the winding region of the tapes 42 and 44 around the corrugated tubes 32 and 34 (for example, only the end region or the entire region including the intermediate region).
  • Corrugated tube 32 This is the case where any of the number of layers of the tapes 42 and 44 on the 34 (whether only one layer is wound, whether the tape is wound in multiple layers, etc.) is different.
  • the larger the winding area of the tapes 42 and 44 with respect to the corrugated tubes 32 and 34 the more difficult the corrugated tubes 32 and 34 are to bend.
  • the corrugated tubes 32 and 34 become more difficult to bend.
  • the first tape 42 is lapped around the end of the first corrugated tube 32, and the first tape 42 is roughly wound around the middle of the first corrugated tube 32.
  • the second tape 44 is overlaid around the entire second corrugated tube 34. Therefore, the winding method of the second tape 44 is a winding method that makes it more difficult to bend the corrugated tube than the winding method of the first tape 42.
  • the second tape 44 is also adjusted so that the second corrugated tube 34 is difficult to bend.
  • the first tape 42 and the second tape 44 may have a role of making it difficult for the corrugated tubes 32 and 34 to open at the slits.
  • the first tape 42 and the second tape 44 are also wound around a bundle of electric wires 30, and may have a role of positioning the corrugated tubes 32 and 34 at a fixed position with respect to the electric wires 30.
  • FIG. 3 is a plan view showing the wire harness 120 according to the second embodiment.
  • the same components as those described in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
  • the wire harness 120 includes the group of the first electric wire 130A, the group of the second electric wire 130B, the first connector 22, the second connector 24, the third connector 126, the first corrugated tube 32, and the second corrugated.
  • a tube 34 and a third corrugated tube 136 are provided.
  • the group of the first electric wires 130A electrically connects the first connector 22 and the second connector 24 in the same manner as the electric wire 30.
  • Each of the second electric wires 130B is a member similar to the above electric wire 30.
  • the group of the second electric wires 130B electrically connects the first connector 22 and the third connector 126.
  • the third connector 126 is a portion that maintains an electrical connection to an electric component, similarly to the first connector 22 or the second connector 24.
  • the first corrugated tube 32 accommodates the group of the first electric wire 130A and the group of the second electric wire 130B in the first section E1.
  • the second corrugated tube 34 accommodates a group of the first electric wires 130A in the second section between the first corrugated tube 32 and the second connector 24, as in the first embodiment.
  • the third corrugated tube 136 is a tube in which the thin annular portion 136a and the thick annular portion 136b are alternately connected via the annular step portion 136c, similarly to the first corrugated tube 32.
  • the third corrugated tube 136 covers the group of the second electric wires 130B in the third section between the first corrugated tube 32 and the third connector 126.
  • the group of the first electric wire 130A and the group of the second electric wire 130B are bundled together in the first section E1 near the first connector 22.
  • the group of the first electric wire 130A and the group of the second electric wire 130B are housed in the same first corrugated tube 32.
  • the group of the first electric wire 130A and the group of the second electric wire 130B are between the branch portion 131 opposite to the first connector 22 with respect to the first section E1, that is, between the first section E1 and the second section E2. It branches at the branching portion 131 of.
  • a group of one branching first electric wire 130A is housed in the second corrugated tube 34.
  • the group of the other branching second wire 130B is housed in the third corrugated tube 136.
  • the number of the first electric wire 130A and the number of the second electric wire 130B are arbitrary.
  • the uneven pitch P1 in the first corrugated tube 32 is different from the uneven pitch P2 in the second corrugated tube 34.
  • the uneven pitch P1 in the first corrugated tube 32 is set to be smaller than the uneven pitch P2 in the second corrugated tube 34.
  • the second corrugated tube 34 is thinner than the first corrugated tube 32, but this is not essential.
  • the uneven pitch P3 in the third corrugated tube 136 may be set to be larger than both the uneven pitch P1 in the first corrugated tube 32 and the uneven pitch P2 in the second corrugated tube 34.
  • the third corrugated tube 136 is thinner than the first corrugated tube 32, but this is not essential.
  • the third corrugated tube 136 has the same thickness as the second corrugated tube 34, but this is also not essential.
  • the flexibility of the wire harness 120 can be adjusted by dividing it into a plurality of sections E1, E2, and E3.
  • the wire harness 120 is divided into a trunk line portion in which the group of the first electric wire 130A and the group of the second electric wire 130B are bundled, a group of the first electric wire 130A branching from the trunk line portion, and a group of the second electric wire 130B. The flexibility can be adjusted.
  • the uneven pitch P3 in the third corrugated tube 136 is set to be larger than both the uneven pitch P1 in the first corrugated tube 32 and the uneven pitch P2 in the second corrugated tube 34, so that the third section Flexibility can be adjusted so that E3 is less likely to bend than the first section E1 and the second section E2.
  • FIG. 4 is an explanatory view showing a state in which the wire harness 120 according to the second embodiment is fixed to the arrangement target body 200 such as a vehicle.
  • Electrical components 212, 214, and 216 are directly or indirectly supported with respect to the object to be arranged 200.
  • the electric component 212 is provided on the lower side, and the electric component 214 and 216 are provided on the upper side.
  • the electrical components 214 and 216 are spaced apart in the horizontal direction.
  • the electric component 212 is provided at a position biased to one side from the center of the electric component 214 and 216.
  • the first connector 22 of the wire harness 120 is connected to the electrical component 212
  • the second connector 24 is connected to the electrical component 214
  • the third connector 126 is connected to the electrical component 216.
  • the group of the first electric wire 130A and the group of the second electric wire 130B in the first section E1 bend upward along the path U1 forming the radius of curvature R1 from the first connector 22.
  • the group of the first electric wires 130A in the second section E2 faces the electric component 214 while gently bending along the path U2 forming the radius of curvature R2.
  • the radius of curvature R1 is smaller than the radius of curvature R2.
  • the group of the second electric wires 130B in the third section E3 faces the electric component 216 along the path U3 forming a straight line or a radius of curvature.
  • the wire harness 120 is fixed to the placement target body 200 in a state where the first section E1 of the wire harness 120 is bent so as to draw a radius of curvature R1 smaller than that of the second section E2.
  • the wire harness 120 is fixed to the placement object 200 by connecting the connectors 22, 24, 126 to the electrical components 212, 214, 216.
  • the corrugated tubes 32, 34, 136, the group of the first electric wire 130A, the group of the second electric wire 130B, and the like may be fixed to the object to be arranged 200 via a bracket or the like.
  • the path of the wire harness 120 is set so as to avoid interference with peripheral components according to the positional relationship of the electrical components 212, 214, and 216.
  • the easily bendable first section E1 is easily bent and the radius of curvature is smaller than the second section E2. It is easy to arrange along the path U1 that draws R1. Further, the second section E2, which is difficult to bend, can be easily arranged along the path U2 without being greatly bent. In addition, after assembly, it is easy to maintain the second section E2 along a stable route.
  • the wire harness 120 is bent when the wire harness 120 is assembled by configuring the configuration along a straight line or a path U3 that draws the largest radius of curvature. Can be reduced, and the wire harness 120 can be easily assembled. Further, for this section E3, it is easy to maintain the path of the wire harness 120 as a stable path after assembly.

Abstract

The purpose of the present invention is to enable adjustment of the flexibility of a wire harness in a plurality of divided sections. A wire harness (20) comprises: a first connector (22); a second connector (24); a plurality of electric wires (30) that electrically connect the first connector and the second connector; a first corrugated tube (32) that covers the plurality of electric wires in a first section (E1) between the first connector and the second connector; and a second corrugated tube (34) that covers the plurality of electric wires in a second section (E2) between the first corrugated tube and the second connector. A corrugation pitch (P1) of the first corrugated tube is different from a corrugation pitch (P2) of the second corrugated tube.

Description

ワイヤハーネスWire harness
　本開示は、ワイヤハーネスに関する。 This disclosure relates to wire harnesses.
　特許文献１は、主幹線である電線束の一部を分岐させるために２つのコルゲートチューブどうしを離間させ、その離間した部分において電線束から一部の電線（枝線）を引き出す技術を開示している。 Patent Document 1 discloses a technique in which two corrugated tubes are separated from each other in order to branch a part of an electric wire bundle which is a main trunk line, and a part of an electric wire (branch line) is pulled out from the electric wire bundle at the separated portion. ing.
特開２０１０－１５４６６５号公報Japanese Unexamined Patent Publication No. 2010-154665
　ここにおいて、ワイヤハーネスの屈曲性を複数の区間に分けて調整することが要請されている。なお、屈曲性とは、ワイヤハーネスの曲げ易さであり、例えば、ワイヤハーネスを曲げるのに要する力の大小によって評価され得る。 Here, it is required to adjust the flexibility of the wire harness by dividing it into a plurality of sections. The flexibility is the ease of bending the wire harness, and can be evaluated by, for example, the magnitude of the force required to bend the wire harness.
　そこで、本開示は、ワイヤハーネスの屈曲性を複数の区間に分けて調整できるようにすることを目的とする。 Therefore, it is an object of the present disclosure to be able to adjust the flexibility of the wire harness by dividing it into a plurality of sections.
　本開示のワイヤハーネスは、第１コネクタと、第２コネクタと、前記第１コネクタと前記第２コネクタとを電気的に接続する複数の電線と、前記第１コネクタと前記第２コネクタとの間の第１区間で、前記複数の電線を覆う第１コルゲートチューブと、前記第１コルゲートチューブと前記第２コネクタとの間の第２区間で、前記複数の電線を覆う第２コルゲートチューブと、を備え、前記第１コルゲートチューブにおける凹凸ピッチは、前記第２コルゲートチューブにおける凹凸ピッチとは異なる、ワイヤハーネスである。 The wire harness of the present disclosure includes a first connector, a second connector, a plurality of electric wires that electrically connect the first connector and the second connector, and between the first connector and the second connector. A first corrugated tube that covers the plurality of electric wires in the first section of the above, and a second corrugated tube that covers the plurality of electric wires in the second section between the first corrugated tube and the second connector. The concave-convex pitch in the first corrugated tube is a wire harness different from the concave-convex pitch in the second corrugated tube.
　本開示によれば、ワイヤハーネスの屈曲性を複数の区間に分けて調整できる。 According to the present disclosure, the flexibility of the wire harness can be adjusted by dividing it into a plurality of sections.
図１は実施形態１に係るワイヤハーネスを示す平面図である。FIG. 1 is a plan view showing a wire harness according to the first embodiment. 図２は変形例に係るワイヤハーネスを示す平面図である。FIG. 2 is a plan view showing a wire harness according to a modified example. 図３は実施形態２に係るワイヤハーネスを示す平面図である。FIG. 3 is a plan view showing the wire harness according to the second embodiment. 図４はワイヤハーネスを車両等の配置対象体に固定した状態を示す説明図である。FIG. 4 is an explanatory view showing a state in which the wire harness is fixed to an object to be arranged such as a vehicle.
　［本開示の実施形態の説明］
　最初に本開示の実施態様を列記して説明する。 [Explanation of Embodiments of the present disclosure]
First, embodiments of the present disclosure will be listed and described.
　本開示のワイヤハーネスは、次の通りである。 The wire harness of this disclosure is as follows.
　（１）第１コネクタと、第２コネクタと、前記第１コネクタと前記第２コネクタとを電気的に接続する複数の電線と、前記第１コネクタと前記第２コネクタとの間の第１区間で、前記複数の電線を覆う第１コルゲートチューブと、前記第１コルゲートチューブと前記第２コネクタとの間の第２区間で、前記複数の電線を覆う第２コルゲートチューブと、を備え、前記第１コルゲートチューブにおける凹凸ピッチは、前記第２コルゲートチューブにおける凹凸ピッチとは異なる、ワイヤハーネスである。 (1) A first connector, a second connector, a plurality of electric wires for electrically connecting the first connector and the second connector, and a first section between the first connector and the second connector. The first corrugated tube that covers the plurality of electric wires and the second corrugated tube that covers the plurality of electric wires in the second section between the first corrugated tube and the second connector are provided. The uneven pitch in the 1 corrugated tube is a wire harness different from the uneven pitch in the second corrugated tube.
　このワイヤハーネスのように、第１コルゲートチューブ及び第２コルゲートチューブにおいて凹凸ピッチが異なっていると、屈曲性を異ならせることができる。このため、ワイヤハーネスの屈曲性を複数の区間に分けて調整できる。 Like this wire harness, if the first corrugated tube and the second corrugated tube have different uneven pitches, the flexibility can be made different. Therefore, the flexibility of the wire harness can be adjusted by dividing it into a plurality of sections.
　（２）（１）のワイヤハーネスであって、前記第２コルゲートチューブにおける凹凸ピッチは、前記第１コルゲートチューブにおける凹凸ピッチよりも大きくてもよい。これにより、第１区間を、第２区間よりも曲げ易くできる。 (2) In the wire harness of (1), the uneven pitch in the second corrugated tube may be larger than the uneven pitch in the first corrugated tube. As a result, the first section can be bent more easily than the second section.
　（３）（２）のワイヤハーネスであって、前記第１コルゲートチューブに巻かれた第１テープと、前記第１テープの巻き方とは異なる態様で、前記第２コルゲートチューブに巻かれた第２テープと、を備えてもよい。このように、第１コルゲートチューブと第２コルゲートチューブとで、第１テープ及び第２テープの巻き方を変えることで、さらに屈曲性を調整することができる。 (3) In the wire harness of (2), the first tape wound around the first corrugated tube and the first tape wound around the second corrugated tube in a manner different from the winding method of the first tape. Two tapes may be provided. In this way, the flexibility can be further adjusted by changing the winding method of the first tape and the second tape between the first corrugated tube and the second corrugated tube.
　（４）（２）又は（３）のワイヤハーネスであって、前記第１区間は、前記第２区間よりも小さい曲率半径を描くように曲げられた状態で、配置対象体に固定されていてもよい。この場合、第１区間は第２区間よりも曲げ易い。このため、第１区間は、前記第２区間よりも小さい曲率半径を描くように曲げられた状態で、配置対象体に容易に固定される。 (4) The wire harness according to (2) or (3), wherein the first section is fixed to the object to be arranged in a state of being bent so as to draw a radius of curvature smaller than that of the second section. May be good. In this case, the first section is easier to bend than the second section. Therefore, the first section is easily fixed to the object to be arranged in a state of being bent so as to draw a radius of curvature smaller than that of the second section.
　（５）（１）から（４）のいずれか１つの態様に係るワイヤハーネスであって、前記複数の電線を第１電線の群とする場合に、さらに、前記第１区間において前記第１電線の群と共に前記第１コルゲートチューブに収容される複数の第２電線の群と、前記第２電線の群によって前記第１コネクタと電気的に接続されている第３コネクタと、を備え、前記第１区間と前記第２区間との間の分岐部で、前記第１電線の群と前記第２電線の群とが分岐しており、前記分岐部と前記第３コネクタとの間の第３区間において、前記第２電線の群を覆う第３コルゲートチューブをさらに備えてもよい。これにより、第１電線の群と第２電線の群とが分岐部で分岐するワイヤハーネスにおいて、ワイヤハーネスを複数の区間に分けて屈曲性を調整できる。 (5) In the wire harness according to any one of (1) to (4), when the plurality of electric wires are a group of the first electric wires, the first electric wire is further formed in the first section. A group of a plurality of second electric wires housed in the first corrugated tube together with the group of the above, and a third connector electrically connected to the first connector by the group of the second electric wires. A group of the first electric wires and a group of the second electric wires are branched at a branch portion between the first section and the second section, and a third section between the branch portion and the third connector. A third corrugated tube may be further provided to cover the group of the second electric wires. Thereby, in the wire harness in which the group of the first electric wire and the group of the second electric wire are branched at the branch portion, the wire harness can be divided into a plurality of sections and the flexibility can be adjusted.
　（６）（５）のワイヤハーネスであって、前記第３コルゲートチューブにおける凹凸ピッチが、前記第１コルゲートチューブにおける凹凸ピッチと前記第２コルゲートチューブにおける凹凸ピッチとのいずれよりも大きくてもよい。これにより、第３区間が、第１区間及び第２区間よりも曲り難くなるように調整することができる。 In the wire harness of (6) and (5), the uneven pitch in the third corrugated tube may be larger than both the uneven pitch in the first corrugated tube and the uneven pitch in the second corrugated tube. Thereby, the third section can be adjusted so as to be less likely to bend than the first section and the second section.
　（７）前記電線として低圧用電線を備える、（１）から（６）のいずれか１つの態様に係るワイヤハーネスであってもよい。この場合、高圧用電線を含む場合と比較して、各電線の径を小さくできるため、屈曲性の調整が容易である。 (7) A wire harness according to any one of (1) to (6), which is provided with a low-voltage electric wire as the electric wire. In this case, since the diameter of each electric wire can be reduced as compared with the case where the high-voltage electric wire is included, the flexibility can be easily adjusted.
　［本開示の実施形態の詳細］
　本開示のワイヤハーネスの具体例を、以下に図面を参照しつつ説明する。なお、本開示はこれらの例示に限定されるものではなく、請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 [Details of Embodiments of the present disclosure]
Specific examples of the wire harness of the present disclosure will be described below with reference to the drawings. It should be noted that the present disclosure is not limited to these examples, but is indicated by the scope of claims and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.
　[実施形態１]
　以下、実施形態１に係るワイヤハーネスについて説明する。図１はワイヤハーネス２０を示す平面図である。 [Embodiment 1]
Hereinafter, the wire harness according to the first embodiment will be described. FIG. 1 is a plan view showing a wire harness 20.
　ワイヤハーネス２０は、第１コネクタ２２と、第２コネクタ２４と、複数の電線３０と、第１コルゲートチューブ３２と、第２コルゲートチューブ３４とを備える。かかるワイヤハーネス２０は、車両等において複数の電気部品同士を電気的に接続する配線部材として用いられる。 The wire harness 20 includes a first connector 22, a second connector 24, a plurality of electric wires 30, a first corrugated tube 32, and a second corrugated tube 34. Such a wire harness 20 is used as a wiring member that electrically connects a plurality of electric components to each other in a vehicle or the like.
　第１コネクタ２２は、車両等における電気部品に対する電気的な接続状態を保つコネクタである。第１コネクタ２２は、電気部品に対して着脱可能に接続されるものであってもよいし、電気部品に対して着脱不能な状態で接続されてもよい。電気部品は、電子制御ユニット、センサ、モータ、スイッチ等であってもよい。第１コネクタ２２は、例えば、樹脂等で形成されたハウジング内に電線３０の端部に圧着等で接続された端子が収容された構成とされてもよい。 The first connector 22 is a connector that maintains an electrical connection state to electrical components in a vehicle or the like. The first connector 22 may be detachably connected to the electric component, or may be connected to the electrical component in a non-detachable state. The electrical component may be an electronic control unit, a sensor, a motor, a switch, or the like. The first connector 22 may be configured such that, for example, a terminal connected to the end of the electric wire 30 by crimping or the like is housed in a housing made of resin or the like.
　第２コネクタ２４は、上記第１コネクタ２２と同様に、車両等における電気部品に対する電気的な接続状態を保つコネクタである。第１コネクタ２２と第２コネクタ２４とが別々の電気部品に接続されることによって、当該別々の電気部品が本ワイヤハーネス２０を介して電気的に接続される。 The second connector 24 is a connector that maintains an electrical connection state to electrical components in a vehicle or the like, like the first connector 22 described above. By connecting the first connector 22 and the second connector 24 to separate electrical components, the separate electrical components are electrically connected via the wire harness 20.
　複数の電線３０のそれぞれは、例えば、芯線と、当該芯線を覆う絶縁被覆とを含む電線である。芯線は、金属等の導電部材によって形成された線状導体である。芯線は１本または複数本の素線で構成される。絶縁被覆は、芯線の周囲を覆う絶縁部分であり、芯線の周囲に樹脂を押出被覆すること等によって形成される。電線３０は、シールド線、ツイスト線等のケーブルを構成する電線であってもよい。複数の電線３０の太さは同じであってもよいし、相互に異なっていてもよい。電線３０の数は任意である。 Each of the plurality of electric wires 30 is, for example, an electric wire including a core wire and an insulating coating covering the core wire. The core wire is a linear conductor formed of a conductive member such as metal. The core wire is composed of one or a plurality of strands. The insulating coating is an insulating portion that covers the periphery of the core wire, and is formed by extruding and coating a resin around the core wire. The electric wire 30 may be an electric wire constituting a cable such as a shielded wire or a twisted wire. The thicknesses of the plurality of electric wires 30 may be the same or may be different from each other. The number of electric wires 30 is arbitrary.
　電線３０は、信号用電線であってもよいし、電源用電線であってもよい。電線３０は、低圧用電線であってもよい。低圧用電線とは、信号用電線、アース用電線、低圧電源用電線等であり、例えば、ＪＡＳＯ　Ｄ６１１（ＪＰ）２０１４版において規定される電線であってもよい。かかる低圧用電線としては、例えば、直径７ｍｍ以下の電線が用いられてもよい。なお、低圧用電線に対比される高圧用電線は、例えば、ＪＡＳＯ　Ｄ６２４（ＪＰ）２０１５版に規定されるものであってもよい。 The electric wire 30 may be a signal electric wire or a power electric wire. The electric wire 30 may be a low voltage electric wire. The low-voltage electric wire is a signal electric wire, a grounding electric wire, a low-voltage power supply electric wire, or the like, and may be, for example, an electric wire specified in JASO D611 (JP) 2014 version. As the low voltage electric wire, for example, an electric wire having a diameter of 7 mm or less may be used. The high-voltage electric wire to be compared with the low-voltage electric wire may be, for example, the one specified in JASO D624 (JP) 2015 version.
　複数の電線３０の一方の端部に第１コネクタ２２が接続され、複数の電線３０の他方の端部に第２コネクタ２４が接続される。これにより、複数の電線３０が、第１コネクタ２２と第２コネクタ２４とを電気的に接続する。第１コネクタ２２と第２コネクタ２４との間では、複数の電線３０は１つに束ねられる。複数の電線３０は、第１コルゲートチューブ３２及び第２コルゲートチューブ３４によって束ねた形態に保たれてもよいし、別の結束部材（粘着テープ等）によって束ねた形態に保たれてもよい。複数の電線３０は、撚られた状態で束ねられていてもよいし、撚られずに束ねられていてもよい。 The first connector 22 is connected to one end of the plurality of electric wires 30, and the second connector 24 is connected to the other end of the plurality of electric wires 30. As a result, the plurality of electric wires 30 electrically connect the first connector 22 and the second connector 24. Between the first connector 22 and the second connector 24, the plurality of electric wires 30 are bundled into one. The plurality of electric wires 30 may be kept in a bundled form by the first corrugated tube 32 and the second corrugated tube 34, or may be kept in a bundled form by another binding member (adhesive tape or the like). The plurality of electric wires 30 may be bundled in a twisted state, or may be bundled without being twisted.
　第１コルゲートチューブ３２は、細環状部３２ａと太環状部３２ｂとが交互に連なるチューブ形状に形成される。細環状部３２ａは環状をなす部分であり、太環状部３２ｂは、細環状部３２ａよりも大きい直径で環状をなす部分である。細環状部３２ａと太環状部３２ｂとの間に、太環状部３２ｂの周縁部と細環状部３２ａの周縁部とを繋ぐ環状段部３２ｃが形成される。環状段部３２ｃは、細環状部３２ａと太環状部３２ｂとに対して角をなして連なっていてもよい。環状段部３２ｃは、第１コルゲートチューブ３２の長手方向に対して直交する方向に延在していてもよいし、当該長手方向に対して傾斜していてもよい。 The first corrugated tube 32 is formed in a tube shape in which thin annular portions 32a and thick annular portions 32b are alternately connected. The thin annular portion 32a is an annular portion, and the thick annular portion 32b is a portion having an annular diameter larger than that of the thin annular portion 32a. An annular step portion 32c is formed between the thin annular portion 32a and the thick annular portion 32b to connect the peripheral edge portion of the thick annular portion 32b and the peripheral edge portion of the thin annular portion 32a. The annular step portion 32c may be connected to the thin annular portion 32a and the thick annular portion 32b at an angle. The annular step portion 32c may extend in a direction orthogonal to the longitudinal direction of the first corrugated tube 32, or may be inclined with respect to the longitudinal direction.
　第２コルゲートチューブ３４も、第１コルゲートチューブ３２と同様に、細環状部３２ａに対応する細環状部３４ａと、太環状部３２ｂに対応する太環状部３４ｂとが、環状段部３２ｃに対応する環状段部３４ｃを介して交互に連なるチューブ形状に形成される。かかる第１コルゲートチューブ３２、第２コルゲートチューブ３４は、主として細環状部３２ａ、３４ａと太環状部３２ｂ、３４ｂとの間の環状段部３２ｃ、３４ｃで変形することによって、曲げ変形することができる。 In the second corrugated tube 34, similarly to the first corrugated tube 32, the thin annular portion 34a corresponding to the thin annular portion 32a and the thick annular portion 34b corresponding to the thick annular portion 32b correspond to the annular step portion 32c. It is formed in a tube shape that is alternately connected via an annular step portion 34c. The first corrugated tube 32 and the second corrugated tube 34 can be bent and deformed mainly by being deformed by the annular step portions 32c and 34c between the thin annular portions 32a and 34a and the thick annular portions 32b and 34b. ..
　コルゲートチューブ３２、３４は、同じ材料、例えば、ＰＰ（ポリプロピレン）等の樹脂によって形成される。コルゲートチューブ３２、３４は、互いに異なる材料で形成されていてもよい。コルゲートチューブ３２、３４の太さ、厚み、細環状部と太環状部との直径差（つまり、環状段部の高さ）等は、同じであってもよいし、異なっていてもよい。なお、コルゲートチューブ３２、３４には、電線３０を内部に配置するためのスリットが形成されていてもよい。この場合、スリットは、コルゲートチューブ３２、３４の少なくとも一部に巻回されたテープによって閉じた状態に維持されてもよい。 The corrugated tubes 32 and 34 are made of the same material, for example, a resin such as PP (polypropylene). The corrugated tubes 32 and 34 may be made of different materials. The thickness and thickness of the corrugated tubes 32 and 34, the diameter difference between the thin annular portion and the thick annular portion (that is, the height of the annular step portion) and the like may be the same or different. The corrugated tubes 32 and 34 may be formed with slits for arranging the electric wires 30 inside. In this case, the slit may be kept closed by a tape wound around at least a part of the corrugated tubes 32, 34.
　第１コルゲートチューブ３２は、第１コネクタ２２と第２コネクタ２４との間の第１区間Ｅ１で、複数の電線３０を覆う。第２コルゲートチューブ３４は、第１コルゲートチューブ３２と第２コネクタ２４との間の第２区間Ｅ２で、複数の電線３０を覆う。すなわち、第１コルゲートチューブ３２は、電線３０のうち第１コネクタ２２寄りの第１区間Ｅ１を覆う。また、第２コルゲートチューブ３４は、電線３０のうち第２コネクタ２４よりの区間Ｅ２を覆う。 The first corrugated tube 32 is a first section E1 between the first connector 22 and the second connector 24, and covers a plurality of electric wires 30. The second corrugated tube 34 is a second section E2 between the first corrugated tube 32 and the second connector 24, and covers a plurality of electric wires 30. That is, the first corrugated tube 32 covers the first section E1 of the electric wire 30 near the first connector 22. Further, the second corrugated tube 34 covers the section E2 of the electric wire 30 from the second connector 24.
　第１コルゲートチューブ３２と第２コルゲートチューブ３４とは互いに離れているが、互いに接していてもよい。第１コルゲートチューブ３２は第１コネクタ２２に対して離れているが、第１コネクタ２２に接していてもよい。第２コルゲートチューブ３４は第２コネクタ２４に対して離れているが、第２コネクタ２４に接していてもよい。 The first corrugated tube 32 and the second corrugated tube 34 are separated from each other, but may be in contact with each other. Although the first corrugated tube 32 is separated from the first connector 22, it may be in contact with the first connector 22. Although the second corrugated tube 34 is separated from the second connector 24, it may be in contact with the second connector 24.
　第１コルゲートチューブ３２における凹凸ピッチＰ１は、第２コルゲートチューブ３４における凹凸ピッチＰ２とは異なっている。ここで、凹凸ピッチは、コルゲートチューブを真っ直ぐ、かつ、圧縮及び伸張方向に力が加わらない自然長にした状態において、コルゲートチューブの長手方向における太環状部と細環状部との１つのセットの長さである。凹凸ピッチの下限値は、例えば、１．０ｍｍであり、好ましくは、１．５ｍｍであり、より好ましくは２．０ｍｍである。凹凸ピッチの上限値は、例えば、２０ｍｍであり、好ましくは１５ｍｍであり、より好ましくは１０ｍｍである。 The uneven pitch P1 in the first corrugated tube 32 is different from the uneven pitch P2 in the second corrugated tube 34. Here, the uneven pitch is the length of one set of the thick annular portion and the thin annular portion in the longitudinal direction of the corrugated tube in a state where the corrugated tube is straight and has a natural length in which no force is applied in the compression and expansion directions. That's right. The lower limit of the uneven pitch is, for example, 1.0 mm, preferably 1.5 mm, and more preferably 2.0 mm. The upper limit of the uneven pitch is, for example, 20 mm, preferably 15 mm, and more preferably 10 mm.
　本実施形態では、第２コルゲートチューブ３４における凹凸ピッチＰ２は、第１コルゲートチューブ３２における凹凸ピッチＰ１よりも大きい。コルゲートチューブ３２、３４を曲げる際、細環状部３２ａ、３４ａ及び太環状部３２ｂ、３４ｂ自体は変形し難く、主として環状段部３２ｃ、３４ｃが変形する。このため、単位長さ当りにおける環状段部３２ｃ、３４ｃの数が多いほど、コルゲートチューブ３２、３４は曲り易いと考えられる。また、凹凸ピッチＰ１、Ｐ２が小さいほど、単位長さ当りにおける細環状部３２ａ、３４ａ及び太環状部３２ｂ、３４ｂの繰返し数が多く、従って、単位長さ当りにおける環状段部３２ｃ、３４ｃの数が多くなる。よって、凹凸ピッチＰ１が凹凸ピッチＰ２よりも小さい設定条件下では、第１コルゲートチューブ３２は第２コルゲートチューブ３４よりも曲り易く、逆にいえば、第２コルゲートチューブ３４は第１コルゲートチューブ３２よりも曲り難い。 In the present embodiment, the uneven pitch P2 in the second corrugated tube 34 is larger than the uneven pitch P1 in the first corrugated tube 32. When the corrugated tubes 32 and 34 are bent, the thin annular portions 32a and 34a and the thick annular portions 32b and 34b themselves are not easily deformed, and the annular step portions 32c and 34c are mainly deformed. Therefore, it is considered that the larger the number of annular step portions 32c and 34c per unit length, the easier it is for the corrugated tubes 32 and 34 to bend. Further, the smaller the uneven pitches P1 and P2, the larger the number of repetitions of the thin annular portions 32a and 34a and the thick annular portions 32b and 34b per unit length. Will increase. Therefore, under the setting condition where the uneven pitch P1 is smaller than the uneven pitch P2, the first corrugated tube 32 is easier to bend than the second corrugated tube 34, and conversely, the second corrugated tube 34 is better than the first corrugated tube 32. Is also hard to bend.
　このように構成されたワイヤハーネス２０によると、第１コルゲートチューブ３２及び第２コルゲートチューブ３４において凹凸ピッチＰ１、Ｐ２が異なっているため、第１コルゲートチューブ３２及び第２コルゲートチューブ３４における屈曲性が異なる。このように、凹凸ピッチＰ１、Ｐ２を異ならせることによって、ワイヤハーネス２０の屈曲性を複数の区間Ｅ１、Ｅ２に分けて調整することができる。 According to the wire harness 20 configured in this way, since the uneven pitches P1 and P2 are different between the first corrugated tube 32 and the second corrugated tube 34, the flexibility of the first corrugated tube 32 and the second corrugated tube 34 is increased. different. By making the uneven pitches P1 and P2 different in this way, the flexibility of the wire harness 20 can be adjusted by dividing it into a plurality of sections E1 and E2.
　また、第２コルゲートチューブ３４における凹凸ピッチＰ２を、第１コルゲートチューブ３２における凹凸ピッチＰ１よりも大きくしているため、第１区間Ｅ１を、第２区間Ｅ２よりも曲げ易くできる。このため、例えば、ワイヤハーネス２０を車両等に組付ける際に、第２区間Ｅ２については直線又は曲りが少ない配線経路に沿って配設し、第１区間Ｅ１については大きく曲る配線経路に沿って容易に配設することができ、ワイヤハーネス２０の組付作業を容易に実施できる。 Further, since the uneven pitch P2 in the second corrugated tube 34 is made larger than the uneven pitch P1 in the first corrugated tube 32, the first section E1 can be bent more easily than the second section E2. Therefore, for example, when the wire harness 20 is assembled to a vehicle or the like, the second section E2 is arranged along a straight line or a wiring path with few bends, and the first section E1 is arranged along a wiring path with a large bend. It can be easily arranged, and the wire harness 20 can be easily assembled.
　また、電線３０が低圧用電線であれば、各電線３０の径を小さくできる。個々の電線３０の径が小さければ、個々の電線３０に固有の屈曲性がワイヤハーネス２０の全体の屈曲性に与える影響は少ない。むしろ、コルゲートチューブ３２、３４内における複数の電線３０の移動の自由度の方がワイヤハーネス２０の屈曲性に与える影響が大きい。このため、電線３０が低圧用電線である場合に、各電線３０の径を小さくできるため、充填率の設定による屈曲性の調整が容易となる。 Further, if the electric wire 30 is a low-voltage electric wire, the diameter of each electric wire 30 can be reduced. If the diameter of the individual electric wires 30 is small, the flexibility inherent in the individual electric wires 30 has little influence on the overall flexibility of the wire harness 20. Rather, the degree of freedom of movement of the plurality of electric wires 30 in the corrugated tubes 32 and 34 has a greater influence on the flexibility of the wire harness 20. Therefore, when the electric wire 30 is a low-voltage electric wire, the diameter of each electric wire 30 can be reduced, so that the flexibility can be easily adjusted by setting the filling rate.
　図２は変形例に係るワイヤハーネス２０Ｂを示す平面図である。本変形例に係るワイヤハーネス２０Ｂは、第１コルゲートチューブ３２に巻かれた第１テープ４２と、第２コルゲートチューブ３４に巻かれた第２テープ４４とを備える。なお、第１テープ４２と第２テープ４４とは、連続するテープであってもよいし、別々のテープであってもよい。第１コルゲートチューブ３２に対する第１テープ４２の巻き方と、第２コルゲートチューブ３４に対する第２テープ４４の巻き方とは異なっている。コルゲートチューブ３２、３４に対するテープ４２、４４巻き方が異なるとは、例えば、コルゲートチューブ３２、３４に対するテープ４２、４４の巻付領域（例えば、端部のみか、中間領域を含む全体領域か等）、テープ４２、４４の巻付ピッチ（テープを重ねた状態で螺旋状に巻いていく重ね巻きか、周回毎に隙間を設けてテープを螺旋状に巻いていく荒巻か等）、コルゲートチューブ３２、３４上におけるテープ４２、４４の層数（１層のみ巻くか、多層に巻くか等）等のいずれかが異なる場合である。コルゲートチューブ３２、３４に対するテープ４２、４４の巻付領域が大きいほど、コルゲートチューブ３２、３４は曲り難くなる。テープ４２、４４の巻付ピッチが小さいほど、コルゲートチューブ３２、３４は曲り難くなる。また、コルゲートチューブ３２、３４上におけるテープ４２、４４の層数が大きくなるほど、コルゲートチューブ３２、３４は曲がり難くなる。 FIG. 2 is a plan view showing the wire harness 20B according to the modified example. The wire harness 20B according to this modification includes a first tape 42 wound around the first corrugated tube 32 and a second tape 44 wound around the second corrugated tube 34. The first tape 42 and the second tape 44 may be continuous tapes or separate tapes. The method of winding the first tape 42 around the first corrugated tube 32 and the method of winding the second tape 44 around the second corrugated tube 34 are different. The winding method of the tapes 42 and 44 around the corrugated tubes 32 and 34 is different from, for example, the winding region of the tapes 42 and 44 around the corrugated tubes 32 and 34 (for example, only the end region or the entire region including the intermediate region). , The winding pitch of the tapes 42 and 44 (whether the tapes are spirally wound in a stacked state, or the tape is spirally wound with a gap for each lap, etc.), Corrugated tube 32, This is the case where any of the number of layers of the tapes 42 and 44 on the 34 (whether only one layer is wound, whether the tape is wound in multiple layers, etc.) is different. The larger the winding area of the tapes 42 and 44 with respect to the corrugated tubes 32 and 34, the more difficult the corrugated tubes 32 and 34 are to bend. The smaller the winding pitch of the tapes 42 and 44, the more difficult the corrugated tubes 32 and 34 are to bend. Further, as the number of layers of the tapes 42 and 44 on the corrugated tubes 32 and 34 increases, the corrugated tubes 32 and 34 become more difficult to bend.
　図２に示す例では、第１コルゲートチューブ３２の端部には第１テープ４２が重ね巻きされ、第１コルゲートチューブ３２の中間部には第１テープ４２が荒巻されている。第２コルゲートチューブ３４の全体に、第２テープ４４が重ね巻きされている。このため、第２テープ４４の巻き方は、第１テープ４２の巻き方よりも、コルゲートチューブを曲げ難くする巻き方である。この第２テープ４４によっても、第２コルゲートチューブ３４が曲げ難くなるように調整されている。なお、第１テープ４２、第２テープ４４は、コルゲートチューブ３２、３４がスリットで開き難くする役割を有していてもよい。第１テープ４２及び第２テープ４４は、電線３０の束にも巻回されており、電線３０に対してコルゲートチューブ３２、３４を一定位置に位置決めする役割を有していてもよい。 In the example shown in FIG. 2, the first tape 42 is lapped around the end of the first corrugated tube 32, and the first tape 42 is roughly wound around the middle of the first corrugated tube 32. The second tape 44 is overlaid around the entire second corrugated tube 34. Therefore, the winding method of the second tape 44 is a winding method that makes it more difficult to bend the corrugated tube than the winding method of the first tape 42. The second tape 44 is also adjusted so that the second corrugated tube 34 is difficult to bend. The first tape 42 and the second tape 44 may have a role of making it difficult for the corrugated tubes 32 and 34 to open at the slits. The first tape 42 and the second tape 44 are also wound around a bundle of electric wires 30, and may have a role of positioning the corrugated tubes 32 and 34 at a fixed position with respect to the electric wires 30.
　[実施形態２]
　実施形態２に係るワイヤハーネス１２０について説明する。図３は実施形態２に係るワイヤハーネス１２０を示す平面図である。なお、本実施の形態の説明において、実施形態１で説明したものと同様構成要素については同一符号を付してその説明を省略する。 [Embodiment 2]
The wire harness 120 according to the second embodiment will be described. FIG. 3 is a plan view showing the wire harness 120 according to the second embodiment. In the description of the present embodiment, the same components as those described in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
　本実施形態２では、複数の電線３０が分岐する例が説明される。すなわち、ワイヤハーネス１２０は、第１電線１３０Ａの群と、第２電線１３０Ｂの群と、第１コネクタ２２、第２コネクタ２４と、第３コネクタ１２６と、第１コルゲートチューブ３２と、第２コルゲートチューブ３４と、第３コルゲートチューブ１３６とを備える。 In the second embodiment, an example in which a plurality of electric wires 30 are branched will be described. That is, the wire harness 120 includes the group of the first electric wire 130A, the group of the second electric wire 130B, the first connector 22, the second connector 24, the third connector 126, the first corrugated tube 32, and the second corrugated. A tube 34 and a third corrugated tube 136 are provided.
　第１電線１３０Ａの群は、上記電線３０と同様に、第１コネクタ２２と第２コネクタ２４とを電気的に接続している。 The group of the first electric wires 130A electrically connects the first connector 22 and the second connector 24 in the same manner as the electric wire 30.
　第２電線１３０Ｂのそれぞれは、上記電線３０と同様の部材である。第２電線１３０Ｂの群は、第１コネクタ２２と第３コネクタ１２６とを電気的に接続している。なお、第３コネクタ１２６は、第１コネクタ２２又は第２コネクタ２４と同様に、電気部品に対する電気的な接続を保つ部分である。 Each of the second electric wires 130B is a member similar to the above electric wire 30. The group of the second electric wires 130B electrically connects the first connector 22 and the third connector 126. The third connector 126 is a portion that maintains an electrical connection to an electric component, similarly to the first connector 22 or the second connector 24.
　第１コルゲートチューブ３２は、第１区間Ｅ１において、上記第１電線１３０Ａの群と第２電線１３０Ｂの群とを収容している。 The first corrugated tube 32 accommodates the group of the first electric wire 130A and the group of the second electric wire 130B in the first section E1.
　第２コルゲートチューブ３４は、実施形態１と同様に、第１コルゲートチューブ３２と第２コネクタ２４との間の第２区間において、第１電線１３０Ａの群を収容している。 The second corrugated tube 34 accommodates a group of the first electric wires 130A in the second section between the first corrugated tube 32 and the second connector 24, as in the first embodiment.
　第３コルゲートチューブ１３６は、上記第１コルゲートチューブ３２と同様に、細環状部１３６ａと太環状部１３６ｂとが環状段部１３６ｃを介して交互に連なるチューブである。第３コルゲートチューブ１３６は、第１コルゲートチューブ３２と第３コネクタ１２６との間の第３区間で、第２電線１３０Ｂの群を覆っている。 The third corrugated tube 136 is a tube in which the thin annular portion 136a and the thick annular portion 136b are alternately connected via the annular step portion 136c, similarly to the first corrugated tube 32. The third corrugated tube 136 covers the group of the second electric wires 130B in the third section between the first corrugated tube 32 and the third connector 126.
　つまり、第１電線１３０Ａの群と第２電線１３０Ｂの群とは、第１コネクタ２２寄りの第１区間Ｅ１において１つに束ねられている。この第１区間Ｅ１において、第１電線１３０Ａの群と第２電線１３０Ｂの群とが同じ第１コルゲートチューブ３２に収容されている。第１電線１３０Ａの群と第２電線１３０Ｂの群とは、第１区間Ｅ１に対して第１コネクタ２２とは反対側の分岐部１３１、即ち、第１区間Ｅ１と第２区間Ｅ２との間の分岐部１３１で分岐している。分岐する一方の第１電線１３０Ａの群が第２コルゲートチューブ３４に収容される。分岐する他方の第２電線１３０Ｂの群が第３コルゲートチューブ１３６に収容される。なお、第１電線１３０Ａの本数、第２電線１３０Ｂの本数は任意である。 That is, the group of the first electric wire 130A and the group of the second electric wire 130B are bundled together in the first section E1 near the first connector 22. In the first section E1, the group of the first electric wire 130A and the group of the second electric wire 130B are housed in the same first corrugated tube 32. The group of the first electric wire 130A and the group of the second electric wire 130B are between the branch portion 131 opposite to the first connector 22 with respect to the first section E1, that is, between the first section E1 and the second section E2. It branches at the branching portion 131 of. A group of one branching first electric wire 130A is housed in the second corrugated tube 34. The group of the other branching second wire 130B is housed in the third corrugated tube 136. The number of the first electric wire 130A and the number of the second electric wire 130B are arbitrary.
　上記実施形態１と同様に、第１コルゲートチューブ３２における凹凸ピッチＰ１は、第２コルゲートチューブ３４における凹凸ピッチＰ２とは異なっている。ここでは、第１コルゲートチューブ３２における凹凸ピッチＰ１が、第２コルゲートチューブ３４における凹凸ピッチＰ２よりも小さくなるように設定される。ここでは、第２コルゲートチューブ３４は、第１コルゲートチューブ３２よりも細いが、これは必須ではない。 Similar to the first embodiment, the uneven pitch P1 in the first corrugated tube 32 is different from the uneven pitch P2 in the second corrugated tube 34. Here, the uneven pitch P1 in the first corrugated tube 32 is set to be smaller than the uneven pitch P2 in the second corrugated tube 34. Here, the second corrugated tube 34 is thinner than the first corrugated tube 32, but this is not essential.
　また、第３コルゲートチューブ１３６における凹凸ピッチＰ３が、第１コルゲートチューブ３２における凹凸ピッチＰ１と第２コルゲートチューブ３４における凹凸ピッチＰ２とのいずれよりも大きくなるように設定されてもよい。ここでは、第３コルゲートチューブ１３６は、第１コルゲートチューブ３２よりも細いが、これは必須ではない。また、第３コルゲートチューブ１３６は、第２コルゲートチューブ３４と同じ太さであるが、これも必須ではない。 Further, the uneven pitch P3 in the third corrugated tube 136 may be set to be larger than both the uneven pitch P1 in the first corrugated tube 32 and the uneven pitch P2 in the second corrugated tube 34. Here, the third corrugated tube 136 is thinner than the first corrugated tube 32, but this is not essential. Further, the third corrugated tube 136 has the same thickness as the second corrugated tube 34, but this is also not essential.
　この実施形態２によると、実施形態１と同様の作用効果を得ることができる。加えて、複数の電線１３０Ａ、１３０Ｂが分岐するワイヤハーネス１２０においても、ワイヤハーネス１２０の屈曲性を複数の区間Ｅ１、Ｅ２、Ｅ３に分けて調整できる。例えば、ワイヤハーネス１２０を、第１電線１３０Ａの群と第２電線１３０Ｂの群とが束ねられた幹線部分と、幹線部分から分岐する第１電線１３０Ａの群と第２電線１３０Ｂの群とに分けて、屈曲性を調整できる。 According to the second embodiment, the same effect as that of the first embodiment can be obtained. In addition, even in the wire harness 120 in which the plurality of electric wires 130A and 130B are branched, the flexibility of the wire harness 120 can be adjusted by dividing it into a plurality of sections E1, E2, and E3. For example, the wire harness 120 is divided into a trunk line portion in which the group of the first electric wire 130A and the group of the second electric wire 130B are bundled, a group of the first electric wire 130A branching from the trunk line portion, and a group of the second electric wire 130B. The flexibility can be adjusted.
　また、第３コルゲートチューブ１３６における凹凸ピッチＰ３が、第１コルゲートチューブ３２における凹凸ピッチＰ１と第２コルゲートチューブ３４における凹凸ピッチＰ２とのいずれよりも大きくなるように設定されることで、第３区間Ｅ３が、第１区間Ｅ１、第２区間Ｅ２よりも曲り難くなるように、屈曲性を調整することができる。 Further, the uneven pitch P3 in the third corrugated tube 136 is set to be larger than both the uneven pitch P1 in the first corrugated tube 32 and the uneven pitch P2 in the second corrugated tube 34, so that the third section Flexibility can be adjusted so that E3 is less likely to bend than the first section E1 and the second section E2.
　図４は実施形態２に係るワイヤハーネス１２０を車両等の配置対象体２００に固定した状態を示す説明図である。配置対象体２００に対して、電気部品２１２、２１４、２１６が直接又は間接的に支持される。図４に示す例では、下方に電気部品２１２が設けられ、上方に電気部品２１４、２１６が設けられる。電気部品２１４、２１６は、水平方向において間隔をあけて設けられる。電気部品２１２は、電気部品２１４、２１６の中央から一側に偏った位置に設けられる。 FIG. 4 is an explanatory view showing a state in which the wire harness 120 according to the second embodiment is fixed to the arrangement target body 200 such as a vehicle. Electrical components 212, 214, and 216 are directly or indirectly supported with respect to the object to be arranged 200. In the example shown in FIG. 4, the electric component 212 is provided on the lower side, and the electric component 214 and 216 are provided on the upper side. The electrical components 214 and 216 are spaced apart in the horizontal direction. The electric component 212 is provided at a position biased to one side from the center of the electric component 214 and 216.
　ワイヤハーネス１２０の第１コネクタ２２が電気部品２１２に接続され、第２コネクタ２４が電気部品２１４に接続され、第３コネクタ１２６が電気部品２１６に接続される。第１区間Ｅ１における第１電線１３０Ａの群及び第２電線１３０Ｂの群は、第１コネクタ２２から曲率半径Ｒ１をなす経路Ｕ１に沿って曲って上方に向う。第２区間Ｅ２における第１電線１３０Ａの群は、曲率半径Ｒ２をなす経路Ｕ２に沿って緩やかに曲りつつ電気部品２１４に向う。上記曲率半径Ｒ１は、曲率半径Ｒ２よりも小さい。第３区間Ｅ３における第２電線１３０Ｂの群は、直線又は曲率半径をなす経路Ｕ３に沿って電気部品２１６に向う。 The first connector 22 of the wire harness 120 is connected to the electrical component 212, the second connector 24 is connected to the electrical component 214, and the third connector 126 is connected to the electrical component 216. The group of the first electric wire 130A and the group of the second electric wire 130B in the first section E1 bend upward along the path U1 forming the radius of curvature R1 from the first connector 22. The group of the first electric wires 130A in the second section E2 faces the electric component 214 while gently bending along the path U2 forming the radius of curvature R2. The radius of curvature R1 is smaller than the radius of curvature R2. The group of the second electric wires 130B in the third section E3 faces the electric component 216 along the path U3 forming a straight line or a radius of curvature.
　このように、ワイヤハーネス１２０における第１区間Ｅ１が、第２区間Ｅ２よりも小さい曲率半径Ｒ１を描くように曲げられた状態で、ワイヤハーネス１２０が配置対象体２００に固定されている。配置対象体２００に対するワイヤハーネス１２０の固定は、コネクタ２２、２４、１２６が電気部品２１２、２１４、２１６に接続されることによってなされる。その他、コルゲートチューブ３２、３４、１３６、第１電線１３０Ａの群、第２電線１３０Ｂの群等がブラケット等を介して配置対象体２００に固定されてもよい。なお、上記ワイヤハーネス１２０の経路は、電気部品２１２、２１４、２１６の位置関係に応じて、周辺部品との干渉を避けるように設定される。 In this way, the wire harness 120 is fixed to the placement target body 200 in a state where the first section E1 of the wire harness 120 is bent so as to draw a radius of curvature R1 smaller than that of the second section E2. The wire harness 120 is fixed to the placement object 200 by connecting the connectors 22, 24, 126 to the electrical components 212, 214, 216. In addition, the corrugated tubes 32, 34, 136, the group of the first electric wire 130A, the group of the second electric wire 130B, and the like may be fixed to the object to be arranged 200 via a bracket or the like. The path of the wire harness 120 is set so as to avoid interference with peripheral components according to the positional relationship of the electrical components 212, 214, and 216.
　第１区間Ｅ１が第２区間Ｅ２よりも曲げ易い場合、ワイヤハーネス１２０を配置対象体２００に固定する場合に、当該曲げ易い第１区間Ｅ１を容易に曲げて第２区間Ｅ２よりも小さい曲率半径Ｒ１を描く経路Ｕ１に沿って配置し易い。また、曲げ難い第２区間Ｅ２については、大きく曲げなくても経路Ｕ２に沿って容易に配置し易い。また、組付後において、第２区間Ｅ２を安定した経路に沿って維持し易い。 When the first section E1 is easier to bend than the second section E2, when the wire harness 120 is fixed to the placement object 200, the easily bendable first section E1 is easily bent and the radius of curvature is smaller than the second section E2. It is easy to arrange along the path U1 that draws R1. Further, the second section E2, which is difficult to bend, can be easily arranged along the path U2 without being greatly bent. In addition, after assembly, it is easy to maintain the second section E2 along a stable route.
　特に、凹凸ピッチＰ３が最も大きく最も曲り難い第３区間Ｅ３については、直線又は最も大きい曲率半径を描く経路Ｕ３に沿う構成とすることで、ワイヤハーネス１２０の組付時に、ワイヤハーネス１２０を曲げる作業を少なくすることができ、ワイヤハーネス１２０の組付作業が容易となる。また、この区間Ｅ３について、組付後にワイヤハーネス１２０の経路を安定した経路で維持し易い。 In particular, for the third section E3, which has the largest uneven pitch P3 and is the most difficult to bend, the wire harness 120 is bent when the wire harness 120 is assembled by configuring the configuration along a straight line or a path U3 that draws the largest radius of curvature. Can be reduced, and the wire harness 120 can be easily assembled. Further, for this section E3, it is easy to maintain the path of the wire harness 120 as a stable path after assembly.
　なお、上記各実施形態及び各変形例で説明した各構成は、相互に矛盾しない限り適宜組合わせることができる。 Note that the configurations described in the above embodiments and modifications can be appropriately combined as long as they do not conflict with each other.
２０、２０Ｂ、１２０　　ワイヤハーネス
２２　　第１コネクタ
２４　　第２コネクタ
３０　　電線
３２　　第１コルゲートチューブ
３２ａ、３４ａ、１３６ａ　　細環状部
３２ｂ、３４ｂ、１３６ｂ　　太環状部
３２ｃ、３４ｃ、１３６ｃ　　環状段部
３４　　第２コルゲートチューブ
４２　　第１テープ
４４　　第２テープ
１２６　　第３コネクタ
１３０Ａ　　第１電線
１３０Ｂ　　第２電線
１３１　　分岐部
２００　　配置対象体
２１２、２１４、２１６　　電気部品
Ｅ１　　第１区間
Ｅ２　　第２区間
Ｅ３　　第３区間
Ｐ１、Ｐ２、Ｐ３　　凹凸ピッチ
Ｕ１、Ｕ２、Ｕ３　　経路 20, 20B, 120 Wire harness 22 1st connector 24 2nd connector 30 Electric wire 32 1st corrugated tube 32a, 34a, 136a Thin annular portion 32b, 34b, 136b Thick annular portion 32c, 34c, 136c annular step 34 2nd corrugated Tube 42 1st tape 44 2nd tape 126 3rd connector 130A 1st electric wire 130B 2nd electric wire 131 Branch part 200 Placement target 212, 214, 216 Electrical parts E1 1st section E2 2nd section E3 3rd section P1, P2 , P3 Concavo-convex pitch U1, U2, U3 route

Claims (7)

  1. 　第１コネクタと、
    　第２コネクタと、
    　前記第１コネクタと前記第２コネクタとを電気的に接続する複数の電線と、
    　前記第１コネクタと前記第２コネクタとの間の第１区間で、前記複数の電線を覆う第１コルゲートチューブと、
    　前記第１コルゲートチューブと前記第２コネクタとの間の第２区間で、前記複数の電線を覆う第２コルゲートチューブと、
    　を備え、
    　前記第１コルゲートチューブにおける凹凸ピッチは、前記第２コルゲートチューブにおける凹凸ピッチとは異なる、ワイヤハーネス。     With the first connector
    With the second connector
    A plurality of electric wires that electrically connect the first connector and the second connector,
    A first corrugated tube that covers the plurality of electric wires in the first section between the first connector and the second connector.
    A second corrugated tube that covers the plurality of electric wires in the second section between the first corrugated tube and the second connector.
    With
    A wire harness in which the uneven pitch in the first corrugated tube is different from the uneven pitch in the second corrugated tube.
  2. 　請求項１に記載のワイヤハーネスであって、
    　前記第２コルゲートチューブにおける凹凸ピッチは、前記第１コルゲートチューブにおける凹凸ピッチよりも大きい、ワイヤハーネス。     The wire harness according to claim 1.
    A wire harness in which the uneven pitch in the second corrugated tube is larger than the uneven pitch in the first corrugated tube.
  3. 　請求項２に記載のワイヤハーネスであって、
    　前記第１コルゲートチューブに巻かれた第１テープと、
    　前記第１テープの巻き方とは異なる態様で、前記第２コルゲートチューブに巻かれた第２テープと、
    　を備えるワイヤハーネス。     The wire harness according to claim 2.
    The first tape wound around the first corrugated tube and
    A second tape wound around the second corrugated tube in a manner different from the winding method of the first tape,
    Wire harness with.
  4. 　請求項２又は請求項３に記載のワイヤハーネスであって、
    　前記第１区間は、前記第２区間よりも小さい曲率半径を描くように曲げられた状態で、配置対象体に固定されている、ワイヤハーネス。     The wire harness according to claim 2 or 3.
    The first section is a wire harness fixed to an object to be arranged in a state of being bent so as to draw a radius of curvature smaller than that of the second section.
  5. 　請求項１から請求項４のいずれか１項に記載のワイヤハーネスであって、
    　前記複数の電線を第１電線の群とする場合に、
    　さらに、前記第１区間において前記第１電線の群と共に前記第１コルゲートチューブに収容される複数の第２電線の群と、
    　前記第２電線の群によって前記第１コネクタと電気的に接続されている第３コネクタと、
    　を備え、
    　前記第１区間と前記第２区間との間の分岐部で、前記第１電線の群と前記第２電線の群とが分岐しており、
    　前記分岐部と前記第３コネクタとの間の第３区間において、前記第２電線の群を覆う第３コルゲートチューブをさらに備える、ワイヤハーネス。     The wire harness according to any one of claims 1 to 4.
    When the plurality of electric wires are used as a group of first electric wires,
    Further, in the first section, a group of a plurality of second electric wires housed in the first corrugated tube together with the group of the first electric wires, and a group of a plurality of second electric wires.
    A third connector that is electrically connected to the first connector by the group of second electric wires,
    With
    At the branching portion between the first section and the second section, the group of the first electric wires and the group of the second electric wires are branched.
    A wire harness further comprising a third corrugated tube covering the group of second wires in a third section between the branch and the third connector.
  6. 　請求項５に記載のワイヤハーネスであって、
    　前記第３コルゲートチューブにおける凹凸ピッチが、前記第１コルゲートチューブにおける凹凸ピッチと前記第２コルゲートチューブにおける凹凸ピッチとのいずれよりも大きい、ワイヤハーネス。     The wire harness according to claim 5.
    A wire harness in which the uneven pitch in the third corrugated tube is larger than both the uneven pitch in the first corrugated tube and the uneven pitch in the second corrugated tube.
  7. 　前記電線として低圧用電線を備える、請求項１から請求項６のいずれか１項に記載のワイヤハーネス。 The wire harness according to any one of claims 1 to 6, further comprising a low-voltage electric wire as the electric wire.
PCT/JP2021/048158 2021-01-14 2021-12-24 Wire harness WO2022153837A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013012075A1 (en) * 2011-07-21 2013-01-24 矢崎総業株式会社 Wire harness
JP2013176211A (en) * 2012-02-24 2013-09-05 Yazaki Corp Exterior-protective member for harness and manufacturing method thereof
JP2016127616A (en) * 2014-12-26 2016-07-11 株式会社オートネットワーク技術研究所 Wiring harness and corrugated tube
JP2019522951A (en) * 2016-05-17 2019-08-15 シュレンマー ゲーエムベーハー Receiving device and cable harness

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013012075A1 (en) * 2011-07-21 2013-01-24 矢崎総業株式会社 Wire harness
JP2013176211A (en) * 2012-02-24 2013-09-05 Yazaki Corp Exterior-protective member for harness and manufacturing method thereof
JP2016127616A (en) * 2014-12-26 2016-07-11 株式会社オートネットワーク技術研究所 Wiring harness and corrugated tube
JP2019522951A (en) * 2016-05-17 2019-08-15 シュレンマー ゲーエムベーハー Receiving device and cable harness

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