Wire fixing member and wire harness

Abstract

To provide a wire fixing member and wire harness that can suppress vibrations in the band portion that holds the wire component. [Solution] The wire fixing member 30 comprises a fixing portion 31 that can be fixed to the underfloor panel 13 as the object to be fixed, and a wire holding portion 40 that holds the wire member 20. The wire holding portion 40 comprises a locking portion 41 integrally provided with the fixing portion 31, and a band portion 42 that extends from the locking portion 41 and wraps around the outer circumference of the wire member 20, and holds the wire member 20 by having its tip inserted into and locked in the locking portion 41. The band portion 42 comprises an elastic biasing portion 43 that generates an elastic force that presses the band portion 42 against the underfloor panel 13 when holding the wire member 20.

Description

Technical Field

[0001] The present disclosure relates to an electric wire fixing member and a wire harness.

Background Art

[0002] For example, the electric wire fixing member described in Patent Document 1 includes a fixing portion that can be fixed to a fixing target on a vehicle side, a band portion for holding an electric wire member, and a lock portion that locks the band portion. By winding the band portion around the outer periphery of the electric wire member and locking the band portion to the lock portion, the electric wire member can be held by the electric wire fixing member.

Prior Art Literature

Patent Literature

[0003]

Patent Document 1

Summary of the Invention

Problem to be Solved by the Invention

[0004] In the above-described electric wire fixing member, there has been a problem that the band portion holding the electric wire member vibrates along with vehicle vibration or the like. When the band portion holding the electric wire member vibrates, for example, the generation of abnormal noise and damage to the band portion caused by repeated contact of the band portion with the fixing target become problems.

[0005] An object of the present disclosure is to provide an electric wire fixing member and a wire harness capable of suppressing vibration of the band portion holding an electric wire member.

Means for Solving the Problem

[0006] The wire fixing member of this disclosure comprises a fixing portion that can be fixed to an object to be fixed, and a wire holding portion that holds a wire member, wherein the wire holding portion comprises a locking portion integrally provided with the fixing portion, and a band portion that extends from the locking portion, wraps around the outer circumference of the wire member, and holds the wire member by having its tip inserted into and locked to the locking portion, and the band portion comprises an elastic biasing portion that generates an elastic force that presses the band portion that holds the wire member against the object to be fixed when the fixing portion is fixed to the object to be fixed. [Effects of the Invention]

[0007] The wire fixing member and wire harness of this disclosure make it possible to suppress vibrations in the band portion that holds the wire member. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a schematic diagram showing the wiring route of a wire harness in one embodiment. [Figure 2] Figure 2 is a schematic front view showing the wire harness of the same embodiment with the wire fixing member attached to the underfloor panel. [Figure 3] Figure 3 is a schematic front view showing the wire fixing member in the wire harness of the same embodiment before it is attached to the underfloor panel. [Figure 4] Figure 4 is a partial front view showing a part of the wire fixing member in the same embodiment. [Figure 5] Figure 5 is a partial plan view showing a part of the wire fixing member in the same embodiment. [Modes for carrying out the invention]

[0009] [Description of Embodiments in this Disclosure] First, the embodiments of this disclosure will be listed and described. [1] The wire fixing member of the present disclosure comprises a fixing portion that can be fixed to an object to be fixed, and a wire holding portion that holds a wire member, wherein the wire holding portion comprises a locking portion integrally provided with the fixing portion, and a band portion that extends from the locking portion and wraps around the outer circumference of the wire member, and holds the wire member by having its tip inserted into and locked to the locking portion, wherein the band portion comprises an elastic biasing portion that generates an elastic force that presses the band portion that holds the wire member against the object to be fixed when the fixing portion is fixed to the object to be fixed.

[0010] In this configuration, the band portion of the wire fixing member is equipped with an elastic biasing portion that generates an elastic force that presses the band portion against the object to be fixed when the fixing portion is fixed to the object. As a result, when the wire fixing member is attached to the object to be fixed, the band portion that holds the wire member is pressed against the object by the elastic force of the elastic biasing portion. Therefore, for example, vibration of the band portion that holds the wire member can be suppressed during vehicle vibration. As a result, it is possible to suppress the generation of abnormal noise and damage to the band portion caused by repeated contact of the band portion with the object to be fixed.

[0011] [2] In the above [1], the fixing portion is attached to the columnar mounting portion provided on the object to be fixed in a mounting direction along the axis of the columnar mounting portion, and the fixing portion and the wire holding portion may be arranged side by side in a direction perpendicular to the mounting direction.

[0012] In this configuration, the fixing part is attached to a columnar mounting part provided on the object to be fixed in a mounting direction along its axis. The fixing part and the wire holding part are arranged side by side in a direction perpendicular to the mounting direction. As a result, the wire holding part, including the band part, is positioned closer to the object to be fixed, making it easier for the elastic force of the elastic biasing part to press the band part against the object to be fixed. Consequently, it becomes possible to more effectively suppress vibrations of the band part that holds the wire member.

[0013] [3] In the above [2], the band portion may be configured to hold the electric wire member and, in the state before the fixing portion is attached to the columnar mounting portion, a part of the band portion may be located on the side of the fixing portion that is on the side of the mounting direction.

[0014] In this configuration, the band portion holds the electric wire member, and before the fixing portion is attached to the columnar mounting portion, a part of the band portion is positioned closer to the mounting direction than the fixing portion. As a result, the band portion is positioned closer to the object to be fixed, making it easier for the elastic force of the elastic biasing portion to press the band portion against the object to be fixed.

[0015] [4] In any one of the above [1] to [3], the elastic biasing portion is provided at the base end of the band portion connected to the locking portion, and the elastic biasing portion may be curved so as to be recessed on the inner circumference side when the band portion is wrapped around the electric wire member.

[0016] In this configuration, the elastic biasing portion is provided at the base end of the band portion connected to the locking portion. Furthermore, the elastic biasing portion is curved so as to be recessed on the inner circumference when the band portion is wrapped around the electric wire member. This makes it possible to create a shape for the elastic biasing portion that makes it easier to press the band portion against the object to be fixed.

[0017] [5] The wire harness of the present disclosure comprises a wire fixing member described in any one of [1] to [4] above, and the wire member. In this configuration, the band portion of the wire fixing member is equipped with an elastic biasing portion that generates an elastic force that presses the band portion against the object to be fixed when it is holding the wire member. As a result, when the wire fixing member is attached to the object to be fixed, the band portion that holds the wire member is pressed against the object by the elastic force of the elastic biasing portion. Therefore, for example, vibration of the band portion that holds the wire member can be suppressed when the vehicle vibrates. As a result, it is possible to suppress the generation of abnormal noise and damage to the band portion caused by repeated contact of the band portion with the object to be fixed.

[0018] [Details of Embodiments of the Present Disclosure] Specific examples of the present disclosure will be described below with reference to the drawings. In each drawing, for convenience of explanation, a part of the configuration may be shown exaggerated or simplified. Further, the dimensional ratios of respective parts may differ between drawings. As used herein, the term "orthogonal" includes not only the case of being strictly orthogonal, but also the case of being substantially orthogonal within a range that exhibits the functions and effects of the present embodiment. In addition, as used herein, the term "opposed" refers that surfaces or members are located at positions facing each other, and includes not only the case where they are completely facing each other, but also the case where they are partially facing each other. Further, as used herein, the term "opposed" includes both the case where another member different from the two portions is interposed between the two portions, and the case where nothing is interposed between the two portions. In addition, terms such as "first" and "second" in the present specification are used merely for distinguishing objects, and do not rank the objects. The present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0019] (Overall Configuration of Wire Harness 10) The wire harness 10 shown in FIG. 1 electrically connects two or three or more electrical devices. The wire harness 10 of the present embodiment electrically connects, for example, an inverter 11 installed at a front portion of a vehicle V such as a hybrid vehicle or an electric vehicle, and a high-voltage battery 12 installed behind the inverter 11 in the vehicle V.

[0020] The inverter 11 is connected to a wheel-drive motor (not shown) that serves as a power source for vehicle traveling. The inverter 11 generates AC power from the DC power of the high-voltage battery 12, and supplies the AC power to the motor. The high-voltage battery 12 is, for example, a battery capable of supplying a voltage of several hundred volts.

[0021] The wire harness 10 is routed, for example, under the floor of the vehicle V. Specifically, for example, the wire harness 10 extends from the inverter 11 to below the underbody panel 13 of the vehicle V, then further extends to the rear of the vehicle V, passing below the underbody panel 13, and then extends upward to the high-voltage battery 12. In this embodiment, the terms "upper" and "lower" used when describing the wire harness 10 refer to the upper and lower positions when the wire harness 10 is fixed to the vehicle V.

[0022] The wire harness 10 comprises a wire member 20 and, for example, a plurality of wire fixing members 30. Each wire fixing member 30 fixes the wire member 20 to, for example, an underfloor panel 13, which is the object to be fixed in the vehicle V. Each wire fixing member 30 is made of synthetic resin.

[0023] (Configuration of the wire component 20) The wire component 20 comprises one or more wires 21 and an outer covering material 22, such as a corrugated tube, that covers the outer circumference of the wires 21. One end of the wire 21 is connected to the inverter 11, and the other end of the wire 21 is connected to the high-voltage battery 12. The wire 21 is, for example, a high-voltage wire capable of handling high voltage and high current. The outer covering material 22 forms the outer circumference of the wire component 20 and is, for example, circular in shape.

[0024] As shown in Figure 2, the underfloor panel 13 is provided with stud bolts 14 as columnar mounting parts. The stud bolts 14 are provided, for example, so as to protrude downward from the underfloor panel 13 toward the ground. Multiple stud bolts 14 are provided on the underfloor panel 13. Multiple wire fixing members 30 are attached to each of the multiple stud bolts 14.

[0025] (Configuration of the wire fixing member 30) The wire fixing member 30 comprises a fixing portion 31 that can be fixed to the underfloor panel 13, which is the object to be fixed, and a wire holding portion 40 that holds the wire member 20. The fixing portion 31 is attached to the stud bolt 14 provided on the underfloor panel 13 in the mounting direction D1 along the axis L1 of the stud bolt 14. The fixing portion 31 and the wire holding portion 40 are arranged side by side in the width direction W perpendicular to the mounting direction D1. The fixing portion 31 and the wire holding portion 40 are integrally formed with each other, for example, by injection molding. For the sake of explanation below, the mounting direction D1 will be described as the upward direction of the wire fixing member 30, and the opposite direction will be described as the downward direction, but the wire fixing member 30 is not necessarily used in a position where the mounting direction D1 (upward direction) faces the sky.

[0026] (Configuration of the fixing part 31) The fixing portion 31 is configured to allow, for example, the insertion of a stud bolt 14 along its axis L1. The fixing portion 31 has a plurality of engaging claws 32 that can elastically engage with the threaded groove or circumferential groove of the inserted stud bolt 14. In this embodiment, the plurality of engaging claws 32 are provided in pairs, one above the other, on either side of the stud bolt 14 in the radial direction. As a result, the fixing portion 31 can be fixed to the stud bolt 14 and the underfloor panel 13 by the engagement of each engaging claw 32 with the stud bolt 14 when the stud bolt 14 is inserted. When the wire fixing member 30 is attached to the stud bolt 14, the upper end surface 31a of the fixing portion 31 (the end surface in the mounting direction D1) is in contact with the underfloor panel 13 in the mounting direction D1.

[0027] (Configuration of the wire holding section 40) The wire holding portion 40 comprises a locking portion 41 and a flexible, band-shaped portion 42. The locking portion 41 is integrally formed on one side surface in the width direction W of the fixing portion 31. The locking portion 41 is configured to be able to lock with the band portion 42 by inserting the band portion 42 upward from the lower side of the locking portion 41. The band portion 42 is integrally formed with the locking portion 41 so as to extend from one side surface in the width direction W of the locking portion 41. The band portion 42 wraps around the outer circumference of the outer sheathing material 22 of the wire member 20, and the tip of the band portion 42 is inserted into and locked in the locking portion 41, thereby holding the wire member 20. The band portion 42 is inserted upward into and locked in relation to the locking portion 41, preventing it from coming out downward from the locking portion 41.

[0028] (Configuration of the elastic biasing section 43) As shown in Figures 2 and 3, the band portion 42 comprises an elastic biasing portion 43 and a band body 44. Figure 3 shows the wire fixing member 30 in a state before it is attached to the underfloor panel 13 while holding the wire member 20. The elastic biasing portion 43 is provided, for example, at the base end of the band portion 42 that is connected to the locking portion 41. The band body 44 is the portion of the band portion 42 that extends from the elastic biasing portion 43 to the tip.

[0029] The elastic biasing portion 43 is curved so as to be recessed on the inner circumference side (towards the electric wire member 20) when the band portion 42 is wrapped around the electric wire member 20. When the elastic biasing portion 43 is wrapped around the electric wire member 20 and holds the electric wire member 20, it generates an elastic force F1 that presses the band portion 42 against the underfloor panel 13.

[0030] Figure 4 is a partial front view showing a portion of the wire fixing member 30 without holding the wire member 20. As shown in Figure 4, the elastic biasing portion 43 in the band portion 42 of the wire fixing member 30 has a first end portion 43a connected to the lock portion 41 and a second end portion 43b on the opposite side of the first end portion 43a. The elastic biasing portion 43 extends from the first end portion 43a to the second end portion 43b, curving upward (towards the mounting direction D1). That is, when the wire member 20 is not attached to the wire holding portion 40, the second end portion 43b is located closer to the mounting direction D1 than the first end portion 43a. The band body 44 extends from the second end portion 43b of the elastic biasing portion 43 along the width direction W. The thickness T1 of the elastic biasing portion 43 is set to be smaller than, for example, the thickness T2 of the band body 44.

[0031] Figure 5 is a partial plan view showing the area near the base end of the band portion 42 in the wire fixing member 30 of Figure 4. As shown in Figure 5, the band width B1 of the elastic biasing portion 43 provided at the base end of the band portion 42 is set to be larger than the band width B2 of the band body 44. As a result, even if the elastic biasing portion 43 is thinner than the band body 44 as described above, the strength of the elastic biasing portion 43 can be easily ensured by widening the band width B1 of the elastic biasing portion 43.

[0032] As shown in Figure 3, the band portion 42 is configured such that, before the fixing portion 31 is attached to the stud bolt 14, a portion of the band portion 42 wrapped around the electric wire member 20 is located on the side of the mounting direction D1 relative to the upper end of the fixing portion 31. In this embodiment, the portion of the band portion 42 wrapped around the electric wire member 20 that includes the second end 43b of the elastic biasing portion 43 and the base end of the band body 44 connected to the second end 43b is located above the upper end surface 31a of the fixing portion 31 (towards the mounting direction D1). This portion of the band portion 42 (the portion including the second end 43b of the elastic biasing portion 43 and the base end of the band body 44) is configured as a contact portion 45 that is pressed against the underfloor panel 13 when the fixing portion 31 is attached to the stud bolt 14. When the band portion 42 is wrapped around the electric wire member 20, the contact portion 45 is configured to protrude outward while moving away from the electric wire member 20.

[0033] (Operation of this embodiment) The function of the wire fixing member 30 will be explained below. After the wire member 20 is attached to the wire holding part 40 by wrapping the band part 42 around it, the fixing part 31 is inserted into the stud bolt 14 in the mounting direction D1 and attached. At this time, the contact part 45 of the band part 42 comes into contact in the mounting direction D1, and the elastic biasing part 43 deforms to bend. This deformation of the elastic biasing part 43 generates an elastic force F1 that presses the contact part 45 of the band part 42 against the underfloor panel 13. Therefore, a force greater than the elastic force F1 is required to pull the band part 42 that is in contact with the underfloor panel 13 away from the underfloor panel 13. As a result, it is easier to maintain the state in which the band part 42 that holds the wire member 20 is in contact with the underfloor panel 13, and repeated contact of the band part 42 with the underfloor panel 13 is suppressed when the vehicle vibrates.

[0034] (Effects of this embodiment) The effects of this embodiment will be described below. (1) The band portion 42 of the wire fixing member 30 is equipped with an elastic biasing portion 43 that generates an elastic force F1 that presses the band portion 42 against the underfloor panel 13 when the fixing portion 31 is fixed to the underfloor panel 13. As a result, when the wire fixing member 30 is attached to the underfloor panel 13, the band portion 42 that holds the wire member 20 is pressed against the underfloor panel 13 by the elastic force F1 of the elastic biasing portion 43. Therefore, for example, when the vehicle vibrates, it is possible to suppress vibration of the band portion 42 that holds the wire member 20. As a result, it is possible to suppress the generation of abnormal noise and damage to the band portion 42 caused by repeated contact of the band portion 42 with the underfloor panel 13. In addition, the band portion 42 is pressed by the elastic force F1 generated by the elastic biasing portion 43, making it less likely for the wire member 20 held by the band portion 42 to sag downwards.

[0035] (2) The fixing portion 31 is attached to the stud bolt 14 provided on the underfloor panel 13 in a mounting direction D1 along its axis L1. The fixing portion 31 and the wire holding portion 40 are arranged side by side in a direction perpendicular to the mounting direction D1 (in this embodiment, the width direction W). As a result, the wire holding portion 40, including the band portion 42, is positioned closer to the underfloor panel 13, making it easier for the elastic force F1 of the elastic biasing portion 43 to press the band portion 42 against the underfloor panel 13. As a result, it becomes possible to more effectively suppress vibrations of the band portion 42 that holds the wire member 20.

[0036] (3) The band portion 42 holds the electric wire member 20, and in the state before the fixing portion 31 is attached to the stud bolt 14, a part of the band portion 42 (the contact portion 45 in this embodiment) is positioned on the side of the mounting direction D1 that is closer to the fixing portion 31. As a result, the band portion 42 is positioned closer to the underfloor panel 13, making it easier for the elastic force F1 of the elastic biasing portion 43 to press the band portion 42 against the underfloor panel 13.

[0037] (4) The elastic biasing portion 43 is provided at the base end of the band portion 42 that is connected to the locking portion 41. The elastic biasing portion 43 is curved so as to be recessed on the inner circumference when the band portion 42 is wrapped around the electric wire member 20. This makes it possible to make the shape of the elastic biasing portion 43 such that the band portion 42 can be easily pressed against the underfloor panel 13.

[0038] (5) The thickness T1 of the elastic biasing portion 43 is set to be smaller than, for example, the thickness T2 of the band body 44. This makes it possible to deform the elastic biasing portion 43 when pressing the band portion 42 against the underfloor panel 13. This makes it possible to press the band portion 42 against the underfloor panel 13 appropriately with the elastic biasing portion 43.

[0039] (Other embodiments) The above embodiment can be implemented with the following modifications. The above embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically.

[0040] The fixing structure of the fixing portion 31 of the wire fixing member 30 to the underfloor panel 13 is not limited to the above embodiment and can be appropriately changed according to the configuration of the wire harness 10. For example, the fixing portion of the wire fixing member 30 may be fixed by being inserted into a through hole formed in the underfloor panel 13.

[0041] The shape of the underfloor panel 13, which is to be fixed, is not limited to a flat shape; for example, it may have a curved or bent shape in areas where stud bolts 14 are not provided. In this case, the band portion 42 of the wire fixing member 30 may face a part of the underfloor panel 13 in the width direction W.

[0042] In the wire fixing member 30, the wire holding portion 40 and the fixing portion 31 may be arranged side by side in the mounting direction D1. In this case, the band portion 42 may be configured to be pressed against a part of the underfloor panel 13 facing in the width direction W by the elastic force of the elastic biasing portion 43.

[0043] In the wire fixing member 30 of the above embodiment, the elastic biasing portion 43 is provided at the base end of the band portion 42 connected to the locking portion 41. However, the elastic biasing portion 43 may also be provided, for example, in the middle of the band portion 42 in the longitudinal direction.

[0044] In the wire fixing member 30, the thickness T1 of the elastic biasing portion 43 may be set to be equal to or greater than the thickness T2 of the band body 44. In the wire fixing member 30, the fixing portion 31 and the wire holding portion 40 may be formed as separate parts, and the locking portion 41 of the wire holding portion 40 may be attached to the fixing portion 31.

[0045] In the above embodiment, the wire fixing member 30 is made of synthetic resin, but it is not limited to this, and may be made of a metal material, for example. In the above embodiment of the electric wire member 20, the outer covering material 22 may be an outer covering material other than a corrugated tube.

[0046] In the above embodiment, the electric wire 21 included in the electric wire member 20 may be a low-voltage electric wire. In the above embodiment, the object to which the wire fixing member 30 is fixed is the underfloor panel 13, but it is not limited to this, and other objects may be used. The configuration of the fixing portion 31 of the wire fixing member 30 may be changed depending on the object to which it is fixed.

[0047] The embodiments disclosed herein are illustrative in all respects, and the present invention is not limited to these examples. That is, the scope of the present invention is indicated by the claims, and all modifications within the meaning and scope equivalent to the claims are intended to be included. [Explanation of symbols]

[0048] 10 Wire Harnesses 11 Inverter 12 High-voltage batteries 13 Underfloor panels (for fixing) 14 Stud bolts (columnar mounting parts) 20 Wire components 21 Electric wire 22 Exterior materials 30 Wire fixing member 31 Fixed part 31a Upper end surface 32 Engaging claws 40 Wire holding part 41 Locking mechanism 42 Band Club 43 Elastic biasing section 43a First end 43b Second end 44 Band body 45 Contact part B1, B2 Bandwidth D1 Mounting direction F1 Elastic force L1 Stud bolt axis T1, T2 thickness V Vehicle W (width direction)

Claims

1. A fixing part that can be fixed to the object to be fixed, A wire fixing member comprising a wire holding portion for holding a wire component, The wire holding portion is, A locking portion is integrally provided with the aforementioned fixing portion, The device comprises a band portion that extends from the locking portion and wraps around the outer circumference of the electric wire member, and whose tip is inserted into and locked to the locking portion to hold the electric wire member, The band portion includes an elastic biasing portion that generates an elastic force that presses the band portion holding the electric wire member against the object to be fixed when the fixing portion is fixed to the object to be fixed. Wire fixing component.

2. The fixing portion is attached to the columnar mounting portion provided on the object to be fixed, in a mounting direction along the axis of the columnar mounting portion. The fixing portion and the wire holding portion are arranged side by side in a direction perpendicular to the mounting direction. The wire fixing member according to claim 1.

3. The band portion is configured to hold the electric wire member, and, in the state before the fixing portion is attached to the columnar mounting portion, a part of the band portion is positioned on the side of the mounting direction that is closer to the fixing portion. The wire fixing member according to claim 2.

4. The elastic biasing portion is provided at the base end of the band portion connected to the locking portion, The elastic biasing portion is curved so as to be recessed on the inner circumference side when the band portion is wrapped around the electric wire member. The wire fixing member according to claim 1.

5. A wire fixing member according to any one of claims 1 to 4, The electric wire member comprises, Wire harness.

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