JP2015139309A - wiring member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology that achieves weight reduction while maintaining sufficient protection performance in a wiring member including a conductor core wire.SOLUTION: A wiring member 10 includes: an exterior member 20; and a conductor core wire 12. The exterior member 20 includes: multiple plate-like members 22 which face each other spaced away from each other; and an interposition member 24 which divides a space between the multiple plate-like members 22 and forms at least one cylindrical part 28 in the space between the multiple plate-like members 22. The conductor core wire 12 is stored in the cylindrical part 28 of the exterior member 20.

Description

  The present invention relates to a wiring member arranged in an automobile or the like.

  As a wiring member arranged in an automobile or the like, a coated electric wire in which a coating layer is formed on the outer periphery of a conductor core wire with a resin or the like is usually used. And depending on the place where the wiring member is arranged, exterior members, such as a protector or a corrugated tube, may be further attached to the outer periphery of the covered electric wire. As a protector attached to a covered electric wire, there exists a thing of patent document 1, for example.

JP 2011-234474 A

  However, when the wiring member is provided with the coating layer of the electric wire and the exterior member, there is a problem that the weight of the wiring member becomes heavy.

  Then, an object of this invention is to provide the technique which can aim at weight reduction and diameter reduction, maintaining sufficient protection performance in a wiring member provided with a conductor core wire.

  In order to solve the above-described problem, a wiring member according to a first aspect partitions a plurality of plate-like members facing each other with a space therebetween, and a space between the plurality of plate-like members, An exterior member that includes at least one interposition member that forms at least one cylindrical portion in a space therebetween, and a conductor core wire that is accommodated in the cylindrical portion of the exterior member.

  A wiring member according to a second aspect is the wiring member according to the first aspect, wherein the cylindrical portion is formed such that a gap is formed at least at a part between an inner peripheral surface thereof and the conductor core wire. ing.

  The wiring member which concerns on a 3rd aspect is a wiring member which concerns on a 1st aspect, Comprising: The said cylindrical part is formed so that the inner peripheral surface and the said conductor core wire may adhere | attach the whole. .

  The wiring member which concerns on a 4th aspect is a wiring member which concerns on any one 1st-3rd aspect, Comprising: The said conductor core wire is a strand wire by which the some strand was twisted together.

  The wiring member which concerns on a 5th aspect is a wiring member which concerns on any one 1st-4th aspect, Comprising: The said cylindrical part is formed in two or more by the said exterior member, The said conductor core wire is formed in several said cylindrical part Is housed.

  According to the wiring member which concerns on the 1st-5th aspect, since a conductor core wire is directly accommodated in the cylinder part of an exterior member, in a wiring member provided with a conductor core wire, weight reduction and a small diameter are maintained, maintaining sufficient protection performance. Can be achieved.

  In particular, according to the wiring member according to the second aspect, the cylindrical portion is formed so that a gap is formed in at least a part between the inner peripheral surface and the conductor core wire. .

  In particular, according to the wiring member according to the third aspect, the cylindrical portion is formed so that the inner peripheral surface thereof and the conductor core wire are in close contact with each other, so that the inside of the hole of the cylindrical portion from the outside. Foreign objects are less likely to enter. Thereby, damage to a conductor core wire can be controlled.

  In particular, according to the wiring member which concerns on a 4th aspect, since a conductor core wire is a strand wire by which the some strand was twisted, it is excellent in a softness | flexibility and strong to a bending and a twist. For this reason, it is possible to obtain a wiring member that is resistant to vibration and the like.

  In particular, according to the wiring member according to the fifth aspect, a plurality of cylindrical portions are formed in the exterior member, and the conductor core wires are accommodated in the plurality of cylindrical portions, so that one wiring member includes a plurality of conductive lines. it can. Thereby, the work of bundling a plurality of conductive lines can be omitted.

It is a partial notch perspective view which shows the wiring member which concerns on embodiment. It is a partial front view which shows the wiring member which concerns on embodiment. It is a partial front view which shows the wiring member which concerns on a 1st modification. It is a partial front view which shows the wiring member which concerns on a 2nd modification. It is a partial notch perspective view which shows the wiring member which concerns on a 3rd modification. It is a partial front view which shows the wiring member which concerns on a 4th modification.

{Embodiment}
Hereinafter, the wiring member 10 according to the embodiment will be described. FIG. 1 is a perspective view showing a wiring member 10 according to the embodiment. FIG. 2 is a front view showing the wiring member 10 according to the embodiment.

  The wiring member 10 according to the embodiment includes a conductor core wire 12 and an exterior member 20. The wiring member 10 is a member that is disposed in an automobile or the like and electrically connects a plurality of electronic devices. Specifically, a terminal is attached to the end of the conductor core wire 12 and connected to a connection target such as a connector, a junction box, or a relay box by inserting the terminal portion.

  The conductor core wire 12 is a portion constituted by one or a plurality of strands 14. In the case of being constituted by a plurality of strands 14, it will be described in detail in a later-described modification. Here, it is assumed that the conductor core wire 12 is constituted by a single wire 14. The conductor core wire 12 is formed in a substantially circular shape in a cross-sectional view orthogonal to the extending direction. The strand 14 which comprises the conductor core wire 12 is formed with copper (a copper alloy is included), aluminum (an aluminum alloy is included), etc. Further, the conductor core wire 12 is not provided with a coating layer by extrusion molding on the outer periphery, and the conductor portion is exposed. That is, the conductor core wire 12 is a so-called bare electric wire.

  The exterior member 20 is a member that protects the intermediate portion of the conductor core wire 12. The exterior member 20 includes a plurality of plate-like members 22 and at least one interposed member 24.

  The plate-like member 22 is formed in a thin plate shape. The plurality of plate-like members 22 are provided so as to face each other with a gap therebetween. Specifically, here, the pair of plate-like members 22 are provided so as to face each other in a state where their main surfaces are parallel to each other.

  The interposition member 24 is provided so as to partition the space between the plurality of plate-like members 22. The interposition member 24 is provided so as to form at least one cylindrical portion 28 in a space between the plurality of plate-like members 22.

  Specifically, the intervening member 24 is a member formed in a plate shape having an uneven shape here. The interposition member 24 is joined to the inward surface of the plate-like member 22 while being sandwiched between the pair of plate-like members 22. The plate member 22 and the interposition member 24 are joined by, for example, an adhesive or a pressure sensitive adhesive. Thereby, the cylinder part 28 according to the uneven | corrugated shape which the interposition member 24 exhibits is formed between a pair of plate-shaped members 22. FIG.

  More specifically, here, the interposition member 24 is formed in a shape in which a crest 26 and a trough 27 are continuous in a wave shape. The extending direction of the peak portion 26 and the extending direction of the valley portion 27 are in a parallel positional relationship. Therefore, when the interposition member 24 is viewed in plan, the plurality of peak portions 26 and the plurality of valley portions 27 are alternately formed in parallel. The top part of the peak part 26 and the bottom part of the valley part 27 may be curved, or may be bent at a predetermined angle.

  And the interposition member 24 is inserted | pinched between a pair of plate-shaped members 22, and the bottom surface of the bottom part of the trough part 27 and the inward surface of the lower plate-shaped member 22 are joined, and the top part of the peak part 26 is joined. The upper surface and the inward surface of the upper plate-like member 22 are joined. Thus, a plurality of cylindrical portions 28 having openings at both ends are formed in the space between the pair of plate-like members 22. That is, here, the space surrounded by the inner peripheral surfaces of the interposition member 24 and the plate-like member 22 is the hole of the cylindrical portion 28. And the conductor core wire 12 is accommodated in this cylinder part 28 in the aspect extended from the opening part of the both ends.

  In the state where the conductor core wire 12 is accommodated in the cylindrical portion 28, it is preferable that a portion of the conductor core wire 12 extending outward from the cylindrical portion 28 is not exposed to the outside. In order to prevent the conductor core wire 12 located outside the tube portion 28 from being exposed to the outside, for example, a terminal may be provided immediately at the end portion of the conductor core wire 12 near the end portion of the tube portion 28. Alternatively, an insulation process may be performed by, for example, winding an insulating tape around the outer periphery of the conductor core wire 12 positioned outside the cylindrical portion 28. Thus, by not exposing the portion of the conductor core wire 12 that extends outward from the cylindrical portion 28 to the outside, the conductor core wire 12 can be prevented from being damaged and the electrical connectivity can be improved.

  It is not essential that a plurality of cylindrical portions 28 are formed. For example, only one cylinder portion 28 may be formed by forming one crest portion 26 and two trough portions 27 in the interposed member 24.

  Further, even when a plurality of cylindrical portions 28 are formed, it is not essential that the conductor core wires 12 of all the cylindrical portions 28 are accommodated. That is, there may be a cylindrical portion 28 in which the conductor core wire 12 is not accommodated. In this case, the conductor core wire 12 is selectively accommodated in the plurality of cylindrical portions 28. In this case, it is preferable that a portion of the exterior member 20 where the conductor core wire 12 is not accommodated is removed by cutting or the like. Thereby, the wiring member 10 can be reduced in weight.

  Here, the plate-like member 22 and the interposition member 24 are formed of an insulating material such as resin. However, if at least the inner peripheral surface of the cylindrical portion 28 (here, the inward surfaces of the plate-like member 22 and the interposition member 24) is in an insulating state, the material forming the plate-like member 22 and the interposition member 24 is There is no particular limitation. The plate-like member 22 and the interposition member 24 may be formed of paper, may be formed of resin, or may be configured by a combination thereof. When the plate-like member 22 or the interposition member 24 is formed of a non-insulating material, the portion that becomes the inner peripheral surface of the cylindrical portion 28 only needs to be coated with insulation.

  In addition, the plate-shaped member 22 and the interposition member 24 may be formed with the same material, and may be formed with another material. When the plate-like member 22 and the interposition member 24 are formed of the same material, for example, when the outer member 20C according to a third modification described later is integrally formed by extrusion, the outer member can be easily formed. it can.

  When a plurality of tube portions 28 are formed, the pitch of the tube portions 28 is determined by the thickness of the interposition member 24, the interval between the crest portions 26 (or trough portions 27), and the like. The pitch of the cylindrical portion 28 is appropriately set depending on the size of the terminal crimped to the end portion of the conductor core wire 12 to be accommodated. At this time, since the conductor core wire 12 is directly accommodated in the cylindrical portion 28, the pitch can be reduced as compared with the case where a conventional electric wire provided with a coating layer of insulating resin is accommodated. Thereby, the diameter of the wiring member 10 can be reduced.

  In addition, the size of the cylindrical portion 28 is determined by the interval between the plate-like members 22 (height from the valley portion 27 to the peak portion 26), the interval between the interposed members 24, and the angle formed by the interposed member 24 and the plate-like member 22. It is determined by the size of. The size of the cylindrical portion 28 is appropriately set depending on the size of the diameter of the conductor core wire 12 to be accommodated.

  Here, although the magnitude | size of the cylinder part 28 is formed about the same as the magnitude | size of the diameter of the conductor core wire 12, since the interposition member 24 is a wave shape, the conductor core wire 12 and the inner peripheral surface of the cylinder part 28, and There is a gap between them. Thereby, the heat dissipation of a wiring member can be improved.

  When a plurality of cylinder portions 28 are formed, it is not essential that the pitch of the cylinder portions 28 and the size of the cylinder portions 28 are all the same. For example, a plurality of types of cylinders having different sizes may be formed in one exterior member as in a second modification described later.

  According to such an exterior member 20, since the plurality of plate-like members 22 are connected by the interposition member 24 at intervals, it is difficult to bend. Further, since the interposition member 24 is interposed between the plate-like members 22, the exterior member 20 is reinforced by the interposition member 24 so that it is difficult to bend and to be recessed. In particular, in this example, the exterior member 20 can be made difficult to bend in the extending direction of the peak portion 26 and the valley portion 27. Therefore, the exterior member 20 is excellent in strength.

  Moreover, the peak part 26 and the trough part 27 are joined to the plate-like member 22 entirely along the extending direction. Thereby, the circumference | surroundings of the some cylinder part 28 are enclosed in the inside (intermediate part except the opening part of both ends). For this reason, it can suppress that the conductor core wire 12 inside the cylinder part 28 contacts another member. Further, even when the conductor core wires 12 are accommodated in the plurality of cylindrical portions 28, it is possible to prevent the plurality of conductor core wires 12 from contacting each other inside the cylindrical portion 28. Therefore, the exterior member 20 can suppress damage to the conductor core wire 12 accommodated therein. Moreover, the conductor core wire 12 accommodated in the exterior member 20 is excellent in electrical connectivity.

<Manufacturing method>
Next, a method for manufacturing the wiring member 10 according to the present embodiment will be described.

  First, a manufacturing example of the exterior member 20 will be described.

  The interposition member 24 can be formed, for example, by sandwiching a flat plate member between press dies having an uneven surface. For example, a flat plate-like member having a belt shape is continuously supplied along a predetermined conveyance path, and a pair of rollers is disposed along the conveyance path. An uneven shape is formed on the surface of the pair of rollers. Then, the intermediate member 24 is continuously formed by continuously sandwiching the flat plate-like member with a pair of rollers while conveying the flat plate-like member having a belt shape along a predetermined conveyance path. Can do.

  A pair of belt-like plate members 22 are continuously supplied along the conveying path to the downstream side of the pair of rollers, and the interposition members 24 are sequentially placed between the pair of belt-like plate members 22. It is sandwiched and joined with an adhesive. Thereby, the exterior member 20 can be manufactured continuously.

  Next, the process of disposing the conductor core wire 12 on the exterior member 20 will be described.

  In order to accommodate the conductor core wire 12 in the exterior member 20, for example, the tip end portion of the conductor core wire 12 may be inserted into the inside from the one end side opening portion of the cylindrical portion 28 and delivered to the other end side opening portion.

  Here, the accommodated conductor core wire 12 is fixed to the exterior member 20 with an adhesive. But it is not essential that the accommodated conductor core wire 12 is fixed to the exterior member 20 with an adhesive. However, for example, the exterior member 20 and the conductor core wire 12 are displaced in the extending direction and the radial direction of the conductor core wire 12 by, for example, being formed so that the size of the cylindrical portion 28 is smaller than the conductor core wire 12 accommodated. It is preferable not to be.

  As described above, the conductor core wires 12 are sequentially accommodated in the predetermined cylindrical portion 28. Thereby, the wiring member 10 which concerns on this embodiment can be obtained.

<Effect>
According to the wiring member 10 according to the present embodiment, since the conductor core wire 12 is directly accommodated in the cylindrical portion 28 of the exterior member 20, the wiring member 10 including the conductor core wire 12 can be reduced in weight while maintaining sufficient protection performance. The diameter can be reduced.

  Moreover, since the cylinder part 28 is formed so that a clearance gap may arise in at least one part between the internal peripheral surface and the conductor core wire 12, it can improve heat dissipation.

  In addition, since a plurality of cylindrical portions 28 are formed on the exterior member 20 and the conductor core wires 12 are accommodated in the plurality of cylindrical portions 28, one wiring member 10 can include a plurality of conductive lines. Thereby, the operation | work etc. which bundle a some conductive line are omissible.

{Modification}
Next, a modified example of the wiring member 10 according to the embodiment will be described. In the following description of each modification, the same components as those described in the embodiment are denoted by the same reference numerals and description thereof is omitted.

<First Modification>
First, the wiring member 10A according to the first modification will be described. FIG. 3 is a partial front view showing a wiring member 10A according to the first modification. In the wiring member 10A according to the first modification, the shape of the conductor core wire 12A is different from the shape of the conductor core wire 12 of the wiring member 10 according to the embodiment.

  Specifically, the conductor core wire 12A of the wiring member 10A according to the first modification is configured by a stranded wire 16 in which a plurality of strands 14 are twisted together. Here, although the seven strands 14 are twisted together, the number of the strands 14 twisted is a matter set suitably. In addition, here, as the seven strands 14, those having the same conductor diameter are used, but the conductor diameters of some of the strands 14 may be different.

  Such a stranded wire 16 can be manufactured, for example, by twisting six strands 14 around one strand 14 in a spiral.

  The effect similar to the wiring member 10 which concerns on embodiment can be acquired also by the wiring member 10A which concerns on a 1st modification.

  Further, according to the wiring member 10A according to the first modified example, the stranded wire 16 is used as the conductor core wire 12A, so that it is excellent in flexibility and strong in bending and twisting. For this reason, it is possible to obtain the wiring member 10A that is resistant to vibration and the like.

<Second Modification>
Next, the wiring member 10B according to the second modification will be described. FIG. 4 is a partial front view showing a wiring member 10B according to a second modification. In the wiring member 10B according to the second modification, the shape of the exterior member 20B is different from the shape of the exterior member 20 of the wiring member 10 according to the embodiment.

  Here, the cylindrical portion 28B formed in the exterior member 20B according to the second modification includes a large-diameter cylindrical portion 29a and a small-diameter cylinder having different diameters in a cross section cut along a direction orthogonal to the extending direction of the cylindrical portion 28B. Part 29b. Thereby, one exterior member 20B can respond to a plurality of types of conductor core wires having different diameters.

  Specifically, here, the interposition member 24B includes an upper interposition member 25a and a lower interposition member 25b formed with the same uneven shape. The two interposition members 25 a and 25 b are sandwiched between the pair of plate-like members 22.

  More specifically, the upper convex part of the upper interposed member 25a is joined to the upper plate-like member 22, and the lower convex part of the lower intermediate member 25b is lower. The side plate-like member 22 is joined. A portion of the upper interposed member 25a that protrudes downward and a portion of the lower interposed member 25b that protrudes upward are joined. Thereby, a small-diameter cylindrical portion 29b is formed between the upper interposition member 25a and the upper plate-like member 22, and between the lower interposition member 25b and the lower plate-like member 22, and the upper side. A large-diameter cylindrical portion 29a is formed between the intermediate member 25a and the lower intermediate member 25b.

  However, the types of diameter of the formed cylindrical portion 28B are not limited to two types, and may be three or more types. For example, among the plurality of interposition members 24 formed with the concavo-convex shape, by changing the height from the concave portion to the convex portion of some of the intervening members 24, those having different sizes of the cylindrical portions can be formed. .

  The effect similar to the wiring member 10 which concerns on embodiment can be acquired also by the wiring member 10B which concerns on a 2nd modification.

  Further, according to the wiring member 10B according to the second modification, the cylindrical portion 28B includes the large-diameter cylindrical portion 29a and the small-diameter cylindrical portion 29b having different diameters, so that one exterior member 20B has a plurality of types having different diameters. It can correspond to a conductor core wire.

<Third Modification>
Next, the wiring member 10C according to the third modification will be described. FIG. 5 is a partially cutaway perspective view showing a wiring member 10C according to a third modification. In the wiring member 10C according to the third modification, the shape of the exterior member 20C is different from the shape of the exterior member 20 of the wiring member 10 according to the embodiment.

  Specifically, the interposition member 24 </ b> C of the exterior member 20 </ b> C according to the third modification is formed in an elongated plate shape and is provided so as to be orthogonal to the pair of plate members 22. A plurality of interposition members 24C are provided in a parallel state with a space therebetween. Thereby, the exterior member 20 </ b> C is formed in a shape having a ladder-like cross section. In addition, a cylindrical portion 28C having a rectangular cross section is formed in the space between each interposed member 24C.

  Here, in the exterior member 20C, the plate-like member 22 and the interposition member 24C are integrally formed of a resin material. Such an exterior member 20C can be continuously manufactured by, for example, an extrusion molding apparatus that extrudes resin from an extrusion hole corresponding to the ladder-shaped cross section. Thereby, the exterior member 20C can be easily manufactured at low cost.

  The cross-sectional shape of the cylindrical portion 28C formed by the interposed member 24C interposed between the plurality of plate-like members 22 is not limited to a rectangle. For example, by setting the interposition member 24C slightly inclined from the state orthogonal to the plate-like member 22, in other words, by setting the angle between the interposition member 24C and the plate-like member 22 to an angle other than 90 degrees, The cross section of the cylindrical portion 28C can be triangular, parallelogram, trapezoidal, or the like. In addition, by bending the interposition member 24C in the middle from the one plate-like member 22 to the other plate-like member 22, the cross-sectional shape of the cylindrical portion 28C can be made a pentagon or more polygon.

  The effect similar to the wiring member 10 which concerns on embodiment can be acquired also by 10C of wiring members which concern on a 3rd modification.

  Further, according to the wiring member 10C according to the third modification, the exterior member 20C is integrally formed of a resin material, and therefore the exterior member 20C can be easily manufactured at low cost.

<Fourth Modification>
Next, a wiring member 10D according to a fourth modification will be described. FIG. 6 is a partial front view showing a wiring member 10D according to a fourth modification. In the wiring member 10D according to the fourth modification, the shape of the exterior member 20D is different from the shape of the exterior member 20 of the wiring member 10 according to the embodiment.

  Specifically, the interposition member 24D of the exterior member 20D according to the fourth modification has semicircular recesses formed on both side surfaces of the interposition member 24C of the exterior member 20C having a ladder-like cross section according to the third modification. It is formed in a different shape. Thereby, it forms so that the cross-sectional shape of cylinder part 28D may become circular.

  The diameter of the circular cylindrical portion 28D is set to be the same as or smaller than the diameter of the conductor core wire 12 to be accommodated (here, slightly smaller). Thereby, in the state which accommodated the conductor core wire 12 in the cylinder part 28D, the inner peripheral surface of cylinder part 28D and the outer peripheral surface of the conductor core wire 12 adhere | attached entirely over the circumferential direction and a longitudinal direction, and cylindrical part 28D of There is no gap between the inner peripheral surface and the outer peripheral surface of the conductor core wire 12.

  Such an exterior member 20D can be continuously manufactured by an extrusion molding apparatus that extrudes resin from an extrusion hole corresponding to a cross-sectional shape, similarly to the exterior member 20C.

  The cross-sectional shape of the cylindrical portion 28D is limited to a true circle as long as the inner peripheral surface of the cylindrical portion 28D and the outer peripheral surface of the conductor core wire 12 are in close contact with each other in the circumferential direction and the longitudinal direction. Instead, for example, it may be oval.

  Also with the wiring member 10D according to the fourth modified example, the effects other than the effect caused by the gap between the inner peripheral surface of the exterior member and the outer peripheral surface of the conductor core wire are the same as those of the wiring member 10 according to the embodiment. Similar effects can be obtained.

  Further, according to the wiring member 10D according to the fourth modified example, the cylindrical portion is formed so that the inner peripheral surface thereof and the conductor core wire are in close contact with each other, so that the inside of the hole of the cylindrical portion is externally provided. Foreign matter is difficult to enter. Thereby, damage to a conductor core wire can be controlled.

  Moreover, since the exterior member 20D is integrally formed of a resin material as in the exterior member 20C according to the third modification, the exterior member 20D can be easily manufactured at low cost.

  In addition, each structure demonstrated by the said embodiment and each modification can be suitably combined unless it mutually contradicts.

  As described above, the present invention has been described in detail. However, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

10, 10A, 10B, 10C, 10D Wiring member 12, 12A Conductor core wire 14 Strand 16 Stranded wire 20, 20B, 20C, 20D Exterior member 22 Plate members 24, 24B, 24C, 24D Interposing members 28, 28B, 28C, 28D tube

Claims (5)

A plurality of plate-like members opposed to each other with an interval, and an interposition member that partitions a space between the plurality of plate-like members and forms at least one cylindrical portion in the space between the plurality of plate-like members. Including an exterior member,
A conductor core wire accommodated in the cylindrical portion of the exterior member;
A wiring member comprising: The wiring member according to claim 1,
The said cylindrical part is a wiring member currently formed so that a clearance gap may arise in at least one part between the internal peripheral surface and the said conductor core wire. The wiring member according to claim 1,
The said cylindrical part is a wiring member currently formed so that between the internal peripheral surface and the said conductor core wire may closely_contact | adhere. The wiring member according to any one of claims 1 to 3,
The conductor core wire is a wiring member that is a stranded wire in which a plurality of strands are twisted together. The wiring member according to any one of claims 1 to 4,
A wiring member, wherein a plurality of the cylindrical portions are formed on the exterior member, and the conductor core wires are accommodated in the plurality of cylindrical portions.

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