JP7160015B2 - Wiring material - Google Patents

Description

TECHNICAL FIELD The present invention relates to a wiring member that connects electrical components mounted on a vehicle.

A flexible flat cable (FFC) or a flexible printed circuit board (FPC), for example, exists as a flat wiring member that connects electrical components mounted on a vehicle (see, for example, Patent Document 1).

JP 2014-11910 A

However, in the above FFC and FPC, it is difficult to cross conductors without short-circuiting them within one wiring member. For this reason, the arrangement route of the conductor in one wiring member has been restricted.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a technique capable of increasing the degree of freedom of conductor arrangement paths in one flat wiring member.

In order to solve the above problems, a wiring member according to a first aspect includes a sheet material, and a plurality of insulated wires arranged so as to have an intersection on a main surface of the sheet material, and the intersection insulated wires forming the upper wire portion of the section are fixed to the sheet material at first and second positions sandwiching the crossing portion, respectively, and the insulated wires forming the upper wire portion are fixed to the first position and the It is also fixed to the sheet material at locations other than the second position along the longitudinal direction with a space different from the space between the first position and the second position, and is fixed at the first position and the second position. In the insulated wire fixed to the sheet material, there is a portion fixed to the sheet material with a gap larger than the gap between the first position and the second position .

A wiring member according to a second aspect includes a sheet material and a plurality of insulated wires arranged to have an intersection on a main surface of the sheet material, and constitutes an upper wire portion at the intersection. insulated wires are fixed to the sheet material at a first position and a second position sandwiching the crossing portion, and a plurality of lower wire portions are present between a pair of the first position and the second position , The insulated wires forming the lower wire portion are fixed to the sheet material at a plurality of locations spaced apart in the longitudinal direction .

A wiring member according to a third aspect includes a sheet material and a plurality of insulated wires disposed so as to have intersections on a main surface of the sheet material, and the intersections of the insulated wires are The constituent part is flat, one insulated wire intersects with two or more insulated wires at the intersection, and the one insulated wire extends along the longitudinal direction with the two or more insulated wires. Intersecting portions and portions located between the two or more wires are flattened .

A wiring member according to a fourth aspect includes a sheet member and a plurality of insulated wires arranged to have crossing portions on a main surface of the sheet member, and the crossing portions of the insulated wires are When the portion constituting the insulated wire is flat, and a portion other than the intersection portion of the insulated wire has a portion that is less flat than the portion constituting the intersection portion, and the insulated wire is observed along the circumferential direction, The portion forming the crossing portion is flattened in both the portion facing the insulated wire on the opposite side of the crossing and the portion on the opposite side compared to the non-flat portion .

A wiring member according to a fifth aspect includes a sheet material and a plurality of insulated wires arranged on a main surface of the sheet material so as to have crossing portions, and a first insulated wire on the sheet material. and a second insulated wire having a smaller diameter than the first insulated wire are mixed, and at least one of the upper wire portion and the lower wire portion is the second insulated wire at all intersections on the sheet material An insulated wire, which is an electric wire and constitutes the lower electric wire portion, is fixed to the sheet material at a plurality of locations spaced apart in the longitudinal direction .

According to each aspect, by crossing the insulated wires on the sheet material, the degree of freedom of the arrangement route of the conductor can be increased in one flat wiring member.

According to the first and second aspects, even when the wiring member is bent, the upper electric wire portion is less likely to float.

According to the first aspect, the insulated wires can be fixed according to the layout.

According to the third and fourth aspects, the height of the intersection can be reduced.

According to the fourth aspect, even when general-purpose electric wires such as round electric wires are used as the electric wires, the height of the intersection can be reduced.

It is a top view which shows the wiring member which concerns on embodiment. FIG. 2 is a schematic cross-sectional view taken along line II-II of FIG. 1; FIG. 2 is a schematic cross-sectional view taken along line III-III in FIG. 1; It is a schematic sectional drawing which shows the wiring member which concerns on a modification. It is a schematic sectional drawing which shows the wiring member which concerns on a modification.

{Embodiment}
A wiring member according to an embodiment will be described below. FIG. 1 is a plan view showing a wiring member 10 according to an embodiment. FIG. 2 is a schematic cross-sectional view taken along line II-II of FIG. FIG. 3 is a schematic cross-sectional view taken along line III-III of FIG.

The wiring member 10 is a member that connects electrical components mounted on the vehicle. The wiring member 10 is formed flat. The wiring member 10 includes a sheet material 20 and multiple insulated wires 30 .

The sheet material 20 holds the plurality of insulated wires 30 flat. The material forming the sheet material 20 is not particularly limited, but the sheet material 20 is preferably made of a material containing a resin such as PVC (polyvinyl chloride), PET (polyethylene terephthalate), or PP (polypropylene). be. The sheet material 20 may also include materials such as metal. The sheet material 20 preferably has flexibility. The sheet material 20 may be a single layer, or may be laminated in multiple layers. When a plurality of layers are laminated, for example, resin layers may be laminated. Further, for example, it is conceivable that a resin layer and a metal layer are laminated. Further, for example, it is conceivable that a metal layer and a metal layer are laminated.

In the example shown in FIG. 1, the sheet material 20 is formed in a rectangular shape, but the shape of the sheet material 20 is not limited to this. The sheet material 20 is preferably formed in a shape corresponding to the arrangement route of the insulated wires 30 and the like. A portion where the insulated wire 30 is not arranged can be omitted as appropriate. For example, in the example shown in FIG. 1, it is conceivable that the portion where the insulated wire 30 is not arranged is omitted to form a T shape or the like. It is also conceivable that a portion of the sheet material 20 where the insulated wires 30 are not arranged, more specifically, a blank portion of the wire arrangement surface or a side surface opposite to the wire arrangement surface may be marked. The marking shape is not particularly limited, and may be, for example, characters, a bar code, a QR code (registered trademark), or the like. Information included in the marking is not particularly limited, and may include various information related to the wiring member 10, such as a manufacturing number, terminal name, product number, and the like. Moreover, the marking means is not particularly limited, and various means such as printing, uneven shape, and the like can be employed. Also, the sheet material 20 may be divided into parts and types according to the difference in color, for example.

The insulated wire 30 is a member that connects electric components mounted on the vehicle. The insulated wire 30 is used as a power line for supplying power, a signal line for transmitting a signal, and the like. All of the insulated wires 30 arranged on the sheet material 20 may be used as power lines or signal lines. Moreover, both the insulated wires 30 used as power lines and the insulated wires 30 used as signal lines may be arranged on the sheet material 20 in a mixed manner.

Specifically, each insulated wire 30 includes a core wire 32 and an insulating coating 34 covering the core wire 32 . The core wire 32 is composed of one or more strands. The strands are made of conductors such as copper, copper alloys, aluminum, and aluminum alloys. When the core wire 32 is composed of a plurality of strands, the strands are preferably twisted. The insulating coating 34 is formed by extruding a resin material such as PVC or PE (polyethylene) around the core wire 32 or applying a resin paint such as enamel around the core wire 32 .

The insulated wire 30 may be a general wire, shielded wire, twisted wire, antenna wire, or the like. Also, the insulated wire 30 may be a single product or a composite product (such as a cable in which a composite is covered with a sheath). In the following description, the insulated wire 30 is a general wire that is a so-called round wire having a circular cross section.

The insulated wire 30 is connected to an electrical component mounted on the vehicle, for example, via a terminal, a connector, or the like provided at its end. In the example shown in FIG. 1 , the ends of the insulated wires 30 extend outward from the sheet material 20 , but the ends of the insulated wires 30 may be arranged on the sheet material 20 .

The plurality of insulated wires 30 are arranged on the main surface of the sheet material 20 so as to have intersections 40 . Below, the insulated wire 30 positioned on the lower side of the intersection 40 is referred to as a lower wire portion 42 , and the insulated wire 30 positioned above is referred to as an upper wire portion 44 . Also, the insulated wire 30 forming the lower wire portion 42 may be referred to as an insulated wire 30a, and the insulated wire 30 forming the upper wire portion 44 may be referred to as an insulated wire 30b. The lower wire portion 42 is the insulated wire 30 located closest to the sheet material 20 at the intersection portion 40 . The lower wire portion 42 is normally in contact with the sheet material 20 . The upper wire portion 44 is the insulated wire 30 that overlaps the lower wire portion 42 at the crossing portion 40 on the side opposite to the sheet material 20 . The upper wire portion 44 is normally in contact with the lower wire portion 42 .

Here, the number of lower electric wire portions 42 in one crossing portion 40 may be one, or may be plural. Similarly, the number of upper wire portions 44 in one crossing portion 40 may be one, or may be plural. The number of upper wire portions 44 and the number of lower wire portions 42 in one crossing portion 40 may be the same or different. The example shown in FIG. 1 is an example in which the number of upper wire portions 44 and the number of lower wire portions 42 at one intersection 40 are both three. Therefore, three upper electric wire portions 44 cross over one lower electric wire portion 42 at one crossing portion 40 . Also, one upper wire portion 44 crosses three lower wire portions 42 at one crossing portion 40 .

A plurality of insulated wires 30 are fixed on the main surface of the sheet material 20 . Such a fixation mode may be contact site fixation, non-contact site fixation, or a combination of both. Here, the fixed contact portion means that the contact portion between the insulated wire 30 and the sheet material 20 is fixed by sticking. In addition, the non-contact part fixation is a fixation mode other than the contact part fixation. The state is maintained by sandwiching the sheet material 20 or the like. In the following description, it is assumed that the insulated wire 30 and the sheet member 20 are in a fixed state of contact.

Such contact site fixation may be indirect fixation at the contact site, direct fixation at the contact site, or both may be used in different regions. Here, the indirect fixation of the contact portion means that the insulated wire 30 and the sheet material 20 are indirectly fixed by adhesive, pressure-sensitive adhesive, double-sided pressure-sensitive adhesive tape, or the like provided therebetween. Further, the direct fixation of the contact portion means that the insulated wire 30 and the sheet material 20 are directly adhered and fixed without an adhesive or the like provided separately. In the direct fixation of the contact portion, for example, it is conceivable that the resin contained in at least one of the insulated wire 30 and the sheet material 20 is melted to stick and fix. In the following description, it is assumed that the insulated wire 30 and the sheet material 20 are directly fixed at their contact portions.

In forming such a state in which the contact portion is directly fixed, the resin may be melted, for example, by heat or melted by a solvent. That is, the state of direct fixation of the contact portion may be the state of direct fixation of the contact portion by heat or the state of direct fixation of the contact portion by solvent. Preferably, the contact portion is directly fixed by heat.

At this time, the means for forming the state of direct fixation of the contact portions is not particularly limited, and known means such as welding, fusing, and welding can be used. For example, when the contact portion is directly fixed by heat by welding, various welding means such as ultrasonic welding, heat-pressure welding, hot-air welding, and high-frequency welding can be employed. Further, when the contact portion directly fixed state is formed by these means, the insulated wire 30 and the sheet material 20 are brought into the contact portion directly fixed state by the means. Specifically, for example, when the contact portion directly fixed state is formed by ultrasonic welding, the insulated wire 30 and the sheet material 20 are brought into the contact portion directly fixed state by ultrasonic welding. In the following description, it is assumed that the insulating coating 34 and the sheet material 20 are directly fixed to each other by ultrasonic welding.

In the case of directly fixing the contact portion, either one of the resin contained in the insulating coating 34 of the insulated wire 30 and the resin contained in the sheet material 20 may be melted, or both may be melted. . In the former case, the melted resin may stick to the outer surface of the unmelted resin, forming a relatively sharp interface. In the latter case, both resins may intermingle without forming a sharp interface. In particular, when the insulating coating 34 of the insulated wire 30 and the sheet material 20 contain resins that are easily compatible, such as the same resin material, the two resins may mix and a clear interface may not be formed.

The insulated wire 30 is fixed (here, welded) to the sheet material 20 at a plurality of locations spaced apart in the longitudinal direction. In the example shown in FIG. 1, the fixing points P are indicated by phantom lines. However, the insulated wires 30 may be fixed to the sheet material 20 in series in the longitudinal direction.

The insulated wire 30b that constitutes the upper wire portion 44 is fixed (here, welded) to the sheet material 20 at a first position P1 and a second position P2 that sandwich the crossing portion 40. As shown in FIG. The insulated wire 30b is also fixed (here, welded) to the sheet member 20 at locations other than the first position P1 and the second position P2. The interval at which the insulated wire 30b is fixed to the sheet material 20 at locations other than the first position P1 and the second position P2 is hereinafter referred to as a first interval D1. Also, the interval between the first position P1 and the second position P2 is called a second interval D2.

The first interval D1 and the second interval D2 are not particularly limited. When the first interval D1 and the second interval D2 are set relatively small, the insulated wires 30 are more firmly fixed to the sheet material 20, and when the wiring member 10 is bent, the insulated wires 30 are separated from the fixing points. , it becomes difficult to float from the sheet material 20. On the other hand, if the first interval D1 and the second interval D2 are set relatively large, the time required to fix the insulated wires 30 to the sheet material 20 can be shortened. Therefore, the first interval D1 and the second interval D2 may be appropriately set in view of these.

The first distance D1 is generally constant here. Also, here, the first distance D1 is the same as the fixed distance between the insulated wire 30 and the sheet material 20 that do not form the intersection 40 .

The second spacing D2 is here different from the first spacing D1. In particular here the second distance D2 is smaller than the first distance D1. For example, the second distance D2 is preferably 30 millimeters or less. Further, for example, the second distance D2 is more preferably 20 millimeters or less.

The reason why the second interval D2 is smaller than the first interval D1 is that when the wiring member 10 is bent, the portion of the insulated wire 30b that becomes the upper wire portion 44 is fixed more than the portion that does not form the intersection portion 40. This is because it is easy to float from the sheet material 20 between them. More specifically, the insulated wire 30b is bent in a direction away from the sheet material 20 at a portion exceeding the lower wire portion 42 between the first position P1 and the second position P2. Therefore, when the wiring member 10 is bent so that the wire arrangement surface faces inward, the insulated wire 30b bends in a direction floating from the sheet material 20 between the first position P1 and the second position P2. It is easy to float from the lower electric wire portion 42 . On the other hand, the portion of the insulated wire 30 b that does not form the intersection 40 extends along the sheet material 20 . Therefore, when the wiring member 10 is bent so that the wire arrangement surface faces inward, the portion of the insulated wire 30b that does not form the intersecting portion 40 can bend following the bending direction of the sheet member 20. By being able to do this, it is difficult to lift from the sheet material 20 .

Here, bending of the wiring member 10 as described above may occur, for example, when the wiring member 10 is assembled to a vehicle. When the wiring member 10 is assembled to the vehicle, if the insulated wire 30 floats from the sheet material 20 due to the bending of the wiring member 10, the floated portion may be caught by surrounding members and damaged, or the insulated wire 30 may be damaged from the sheet material 20. There is a risk of it coming off. In particular, the portion where the flat wiring member 10 is assembled is often a narrow portion, and there is a risk that even a slight float may cause it to get caught. On the other hand, since the second distance D2 is smaller than the first distance D1, the insulated wire 30b is less likely to be lifted from the sheet material 20 even in the portion between the first position P1 and the second position P2. This makes it difficult for these situations to occur.

The distance between the first position P1 and the crossing portion 40 is defined as a third distance D3. Also, the interval between the second position P2 and the crossing portion 40 is defined as a fourth interval D4. Here, the third distance D3 is considered to be, for example, the distance between the first position P1 and the lower wire portion 42a closest to the first position P1 among the lower wire portions 42. As shown in FIG. Similarly, the fourth distance D4 is considered to be the distance between the second position P2 and the lower wire portion 42b closest to the second position P2 among the lower wire portions 42, for example. The third interval D3 and the fourth interval D4 are each set to be equal to or greater than the minimum bending radius (also referred to as minimum bending radius, allowable bending radius, etc.) of the insulated wire 30b that constitutes the upper wire portion 44 .

Here, the minimum bending radius is a value that is recommended to be bent with a bending radius exceeding the minimum bending radius when the insulated wire 30 is bent. More specifically, when the insulated wire 30 is bent, a difference in peripheral length is generated between the inner peripheral side and the outer peripheral side, whereby a compressive force is applied to the inner peripheral side and the outer peripheral side is elongated. It takes force. This force generally increases as the bending radius of the insulated wire 30 decreases. If this force becomes large, the insulated wire 30 may buckle or break. Therefore, the minimum bending radius is set for the insulated wire 30 so that this force does not become too large.

The minimum bending radius is a value appropriately set according to the material, shape, arrangement state (fixed or movable, etc.) of the insulated wire 30 . The minimum bending radius is usually a value set for each type of insulated wire 30 . The minimum bending radius is usually set to several times the diameter of the insulated wire 30 in many cases.

Since the third interval D3 and the fourth interval D4 are each set to be equal to or greater than the minimum bending radius of the insulated wire 30b forming the upper wire portion 44, the insulated wire 30b forming the upper wire portion 44 is bent more than the minimum bending radius. It is possible to suppress bending with a small radius. This can prevent the insulated wire 30b from being damaged or broken.

The insulating coating 34 of the insulated wire 30a that constitutes the lower wire portion 42 is fixed to the sheet material 20 at the position P3 of the intersection portion 40. As shown in FIG. At this time, the thickness of at least one of the insulating coating 34 of the insulated wire 30a and the sheet material 20 constituting the lower wire portion 42 in the fixed portion is thinner than the surrounding portion. Here, the insulating coating 34 of the insulated wire 30a forming the lower wire portion 42 and the sheet material 20 are welded together at the position P3 of the intersecting portion 40, so that the insulated wire forming the lower wire portion 42 at the bonding portion is welded. At least one of the insulating coating 34 of 30a and the sheet material 20 is thin. As a result, the sum of the thicknesses of the insulating coating 34 of the lower wire portion 42 and the sheet material 20 becomes smaller than before welding. Here, three upper wire portions 44 cross over one lower wire portion 42 at one intersection 40 . In this way, when a plurality of upper wire portions 44 cross over one lower wire portion 42 at one crossing portion 40, a portion of the one lower wire portion 42 that overlaps with the plurality of upper wire portions 44 Each insulating coating 34 is preferably welded to the sheet material 20 .

Here, the insulating coating 34 of the lower wire portion 42 is welded to the sheet material 20 over the entire crossing portion 40 at one crossing portion 40 . That is, in addition to each of the portions of one lower wire portion 42 overlapping with the plurality of upper wire portions 44 at one crossing portion 40, the insulating coating 34 of the portion between the portions overlapping with the plurality of upper wire portions 44 is a sheet. It is welded with the material 20 . However, there is a possibility that the insulating coating 34 of the portion between the portions of the one lower electric wire portion 42 overlapping with the upper electric wire portions 44 at the one crossing portion 40 is not welded to the sheet material 20 .

According to the wiring member 10 configured as described above, by crossing the insulated wires 30 on the sheet member 20, the degree of freedom of the conductor arrangement paths in the one flat wiring member 10 can be increased.

In addition, since the insulating coating 34 of the insulated wires 30a constituting the lower wire portion 42 is welded to the sheet material 20 at the position of the crossing portion 40, the height of the crossing portion 40 can be reduced, thereby making it possible to reduce the height of the crossing portion 40. It is possible to suppress the thickness of 10 from increasing.

In addition, since the insulated wires 30b that constitute the upper wire portion 44 are fixed to the sheet material 20 at the first position P1 and the second position P2 that sandwich the intersection portion 40, even if the wiring member 10 is bent, the upper wires are The part 44 becomes difficult to float. At this time, if the second distance D2 between the first position P1 and the second position P2 is 30 millimeters or less, the upper electric wire portion 44 is less likely to float even when the wiring member 10 is bent, and the amount of float is reduced. can be made smaller. In particular, when the second distance D2 between the first position P1 and the second position P2 is 20 millimeters or less, the upper wire portion 44 is particularly difficult to float even when the wiring member 10 is bent, and the amount of float is reduced. can be made smaller.

In addition, since the third distance D3 and the fourth distance D4 between the first position P1 and the second position P2 and the crossing portion 40 are equal to or greater than the minimum bending radius of the insulated wire 30b that constitutes the upper wire portion 44, the insulated wire 30b is suppressed from being bent with a bending radius smaller than the minimum bending radius, and the upper electric wire part 44 bent before and after the intersection part 40 is hardly damaged.

Also, the insulated wire 30b constituting the upper wire portion 44 is different from the second distance D2 between the first position P1 and the second position P2 along the longitudinal direction even at locations other than the first position P1 and the second position P2. Since the insulated wires 30 are fixed to the sheet material 20 with the first gap D1, the insulated wires 30 can be fixed according to the layout.

In addition, since the plurality of insulated wires 30 are positioned on the sheet material 20, the circuits can be identified even if they are in a single color without being color-coded according to the circuits. Of course, the plurality of insulated wires 30 may be color-coded according to the circuit.

{Modification}
4 and 5 are schematic cross-sectional views showing a wiring member 110 according to a modification. FIG. 4 is a schematic cross-sectional view at a position corresponding to FIG. FIG. 5 is a schematic cross-sectional view at a position corresponding to FIG.

In the wiring member 110 according to the modification, the portion of the insulated wire 130 that constitutes the intersecting portion 140 is flat. Since the portion of the insulated wire 130 forming the intersection 140 is flat, the height of the intersection 140 can be reduced. At this time, both the upper wire portion 144 and the lower wire portion 142 are flattened here, but this is not an essential configuration. Of the upper wire portion 144 and the lower wire portion 142, only the upper wire portion 144 may be flattened, or only the lower wire portion 142 may be flattened. However, when both the upper wire portion 144 and the lower wire portion 142 are flattened, the height of the intersection portion 140 can be made lower than when only one of them is flattened.

In wiring member 110 , portions of insulated wires 130 other than crossing portion 140 have portions that are less flat than the portions forming crossing portion 140 . More specifically, in the wiring member 110 as well, round wires are used as the insulated wires 130 in the same manner as in the embodiment. A portion of the round electric wire that will become the intersection portion 140 is pressed and crushed to flatten the portion that will become the intersection portion 140 . At this time, in the portion other than the crossing portion 140, the portion of the insulated wire 130 other than the crossing portion 140 constitutes the crossing portion 140 because there is a portion where the round electric wire is not crushed or the amount of crushing is small even if it is crushed. There is a portion that is less flat than a flat portion. For example, in the portion of the insulated wire 130 that has a portion that forms the intersection 140 and that is disposed on the sheet member 20, the portion that does not form the intersection 140 and is not fixed to the sheet member 20 is the round wire. It can be a portion that is not crushed or that is crushed but the amount is small.

When the insulated wire 130 is crushed, it is conceivable that it is pressed with heating. In addition, it is conceivable that the upper electric wire portion 144 and the lower electric wire portion 142 are pressed and crushed while being overlapped. When these conditions are satisfied at the same time, a lower heating temperature is preferable. This is because if the heating temperature is high, the insulating coating 34 may flow and the upper electric wire portion 144 and the lower electric wire portion 142 may be short-circuited.

As described above, if a portion of the insulated wire 130 other than the crossing portion 140 has a portion that is not flatter than the portion constituting the crossing portion 140 , even if a general-purpose wire such as a round wire is used as the insulated wire 130 , the crossing will not occur. The height of the intersecting portion 140 can be reduced by flattening the portion constituting the portion 140 by, for example, being crushed.

In particular, here, the portion of the insulated wire 130 that constitutes the intersection 140 is flatter than the portion other than the intersection 140 . In other words, the portion of the insulated wire 130 that constitutes the crossing portion 140 is the most crushed portion. Thereby, the height of the crossing portion 140 can be made lower. In addition, the insulated wire 130 may be flattened at the end of the insulated wire 130 for connection with a terminal. In this case, the end of the insulated wire 130 may be flatter than the portion of the insulated wire 130 that forms the intersection 140 . In this case, it is preferable that the portion of the insulated wire 130 that constitutes the crossing portion 140 is flatter than the intermediate portion other than the crossing portion 140 .

Although the wiring member 110 is an example in which a part of the insulated wire 130 is flattened, it is also conceivable that the insulated wire 130 is entirely flattened. In this case, as the insulated wire 130, an insulated wire 130 such as a so-called rectangular wire that is formed flat in advance can be employed. Of course, the insulated wire 130 may be flattened over the whole by squeezing the round wire over the whole.

Further, when a part of the insulated wire 130 is flattened, the portion of the insulated wire 130 that is disposed on the sheet material 20 is entirely flattened, and the portion that is not disposed on the sheet material 20 is flattened. Non-flat portions may be present. As a result, the thickness of the portion of the wiring member 110 that overlaps with the sheet material 20 can be reduced.

In addition, although the insulated wire 30 is not overlaid on the upper wire portion 44 in the examples shown so far, the insulated wire 30 may be further overlaid on the upper wire portion 44 . In other words, in the example shown so far, the insulated wires 30 doubly intersect at the crossing portion 40, but there may be cases where the insulated wires 30 intersect three or more times.

Further, in the example shown so far, one insulated wire 30 constitutes the crossing portion 40 at one place along the longitudinal direction, but the one insulated wire 30 has the crossing portion 40 at a plurality of places along the longitudinal direction. It may be configured. In this case, the one insulated wire 30 may form the upper wire portion 44 at all the intersections 40, or may form the lower wire portion 42 at all the intersections 40. could be. Further, the one insulated wire 30 may constitute the upper wire portion 44 at one crossing portion 40 and the lower wire portion 42 at another crossing portion 40 .

In the example shown so far, the one upper wire portion 44 crosses over the plurality of lower wire portions 42 at one crossing portion 40. As the number of wire portions 42 increases or the thickness thereof increases, the second distance D2 between the first position P1 and the second position P2 increases. In this case, it is preferable to form a plurality of crossing portions 40 by dividing the lower wire portion 42 to be crossed into a plurality of groups. That is, one upper wire portion 44 is configured to cross one group of lower wire portions 42 at one crossing portion 40 and to cross another group of lower wire portions 42 at another crossing portion 40 . Good. As a result, the number of lower wire portions 42 to be crossed at one crossing portion 40 can be reduced, and the second distance D2 between the first position P1 and the second position P2 at each crossing portion 40 can be reduced. In this case, it is possible that the insulated wires 30 forming the upper wire portion 44 and the sheet material 20 are fixed at the same position between the adjacent crossing portions 40 . This one fixing point can be considered to be the first position P1 for one of the adjacent intersections 40 and the second position P2 for the other intersection 40 .

Further, in the example shown so far, the upper electric wire portion 44 at the intersection portion 40 is arranged along a curved path, but may be arranged along a straight path. When a plurality of upper wire portions 44 are present at one crossing portion 40, the upper wire portions 44 are arranged along a curved path and the upper wire portions 44 are arranged along a straight path. Only one of them may exist, or both of them may exist.

Similarly, although the lower wire portion 42 at the crossing portion 40 is arranged along a curved path, it may be arranged along a straight path. Further, when a plurality of lower wire portions 42 are present at one crossing portion 40, the lower wire portions 42 arranged along a curved path and the lower wire portions 42 arranged along a straight path are arranged. Only one of the portion 42 may be present, or both may be present.

In the example shown so far, all the insulated wires 30 arranged on the sheet material 20 have the same diameter, but the insulated wires 30 with different diameters are arranged so as to be mixed on the sheet material 20. may For example, when a power line and a signal line are used together, the power line tends to carry a larger current than the signal line. It is conceivable that it will be used.

When insulated wires 30 having different diameters are arranged on the sheet material 20 in a mixed manner, and when the crossing portion 40 is formed on the sheet material 20, the insulated wires 30 forming the crossing portion 40 Either a large-diameter insulated wire or a small-diameter insulated wire may be employed as the material. However, at least one of the insulated wires 30 forming the intersection 40 is preferably a small-diameter insulated wire, and more preferably all the insulated wires 30 forming the intersection 40 are small-diameter insulated wires. If the insulated wire 30 forming the crossing portion 40 is an insulated wire with a small diameter, it is possible to suppress the height of the crossing portion 40 from increasing.

When the insulated wire 30a forming the lower wire portion 42 and the insulated wire 30b forming the upper wire portion 44 are configured by a combination of a large-diameter insulated wire and a small-diameter insulated wire, the large-diameter insulated wire is placed on the upper side. It is good also as the electric wire part 44, and it is good also considering a small diameter insulated wire as the upper electric wire part 44. FIG.

Also, when a plurality of upper wire portions 44 cross over one lower wire portion 42 at one crossing portion 40, the plurality of upper wire portions 44 are configured by a combination of a large-diameter insulated wire and a small-diameter insulated wire. In this case, it is preferable that the portion of the insulating coating 34 of the lower wire portion 42 that overlaps the large-diameter insulated wire is welded.

Further, in the examples shown so far, the insulated wire 30a forming the lower wire portion 42 and the insulated wire 30b forming the upper wire portion 44 at the crossing portion 40 have at least one terminal end to which they are connected. Although the parts were different, this is not an essential configuration. It is possible that the connection destinations of both ends are the same terminals. More specifically, in the example shown so far, when one end of the insulated wire 30a constituting the lower wire portion 42 is accommodated in the first connector and the other end is accommodated in the second connector, the upper At least one end of the insulated wire 30b forming the wire portion 44 is accommodated in a third connector different from the first connector and the second connector. On the other hand, when one end of the insulated wire 30a forming the lower wire portion 42 is housed in the first connector and the other end is housed in the second connector, the insulated wire 30b forming the upper wire portion 44 It is also possible that one end is housed in the first connector and the other end is housed in the second connector.

Also, in the examples shown so far, the lower wire portion 42 and the upper wire portion 44 at the crossing portion 40 were not fixed, but they may be fixed.

In the example shown so far, the insulated wires 30 are arranged only on one main surface of the sheet material 20, but the insulated wires 30 are arranged on both main surfaces of the sheet material 20. may In this case, one insulated wire 30 may be arranged on both main surfaces of the sheet material 20 . Such an insulated wire 30 may, for example, move from one main surface to the other main surface by passing outside the edge of the sheet material 20, or may pass through a concave portion or a through hole formed in the sheet material 20 to move to one side. You may move from a main surface to the other main surface.

A protective material may be attached to the wiring member 10 separately from the sheet material 20 . The protective material is not particularly limited, and may be, for example, an adhesive tape, a corrugated tube, a protective sheet, or the like.

A soundproof material may be attached to the wiring member 10 separately from the sheet material 20 . Such a soundproof material is provided, for example, so that abnormal noise is less likely to occur when the wiring member 10 and another member come into contact with each other. Such a soundproof material is not particularly limited, and for example, an adhesive tape whose base material is foamed resin such as urethane tape can be used. Further, for example, urethane foam or the like may be directly sprayed onto the wiring member 10 to serve as a soundproof material.

The wiring member 10 may remain flat or may be rolled when the protective material and the soundproof material are attached. Moreover, the protective material and the soundproof material may be provided on the wire-arranged surface, may be provided on the opposite side to the wire-arranged surface, or may be provided on both of them.

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

This specification includes the following disclosures.
A wiring member according to a first aspect includes a sheet material and a plurality of insulated wires arranged so as to have intersections on a main surface of the sheet material.
A wiring member according to a second aspect is the wiring member according to the first aspect, wherein the insulating coating of the lower electric wire portion at the intersection is fixed to the sheet material at the position of the intersection, At least one of the insulation coating of the lower electric wire portion and the sheet material at the fixed portion is thin.
A wiring member according to a third aspect is the wiring member according to the first or second aspect, wherein the insulated wire constituting the upper wire portion at the crossing portion is located at a first position and a second position sandwiching the crossing portion. are fixed to the sheet material at respective positions.
A wiring member according to a fourth aspect is the wiring member according to the third aspect, wherein the distance between the first position and the second position is 30 millimeters or less.
A wiring member according to a fifth aspect is the wiring member according to the fourth aspect, wherein the distance between the first position and the second position is 20 millimeters or less.
A wiring member according to a sixth aspect is the wiring member according to any one of the third to fifth aspects, wherein the intervals between the first position and the second position and the intersecting portion are the upper electric wires. It is at least the minimum bending radius of the insulated wires that make up the part.
A wiring member according to a seventh aspect is the wiring member according to any one of the third to sixth aspects, wherein the insulated wire constituting the upper wire portion is located at positions other than the first position and the second position. Also, it is fixed to the sheet member at a distance different from the distance between the first position and the second position along the longitudinal direction.
A wiring member according to an eighth aspect is the wiring member according to any one of the first to seventh aspects, wherein the portion of the insulated wire that constitutes the intersection is flat.
A wiring member according to a ninth aspect is the wiring member according to the eighth aspect, wherein a portion of the insulated wire other than the intersection portion has a portion that is less flat than the portion forming the intersection portion.
According to each aspect, by crossing the insulated wires on the sheet material, the degree of freedom of the arrangement route of the conductor can be increased in one flat wiring member.
According to the second aspect, it is possible to reduce the height of the crossing portion, thereby suppressing an increase in the thickness of the wiring member.
According to the third aspect, even when the wiring member is bent, the upper electric wire portion is less likely to float.
According to the fourth aspect, even when the wiring member is bent, the upper electric wire portion is less likely to float, and the amount of float can be reduced.
According to the fifth aspect, even when the wiring member is bent, the upper electric wire portion is particularly difficult to float, and the amount of float can be further reduced.
According to the sixth aspect, the upper wire portion that bends before and after the intersection is less likely to be damaged.
According to the seventh aspect, the insulated wires can be fixed according to the layout.
According to the eighth aspect, the height of the intersection can be reduced.
According to the ninth aspect, even when general-purpose electric wires such as round electric wires are used as the electric wires, the height of the intersection can be reduced.
Although the present invention has been described in detail as above, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that numerous variations not illustrated can be envisioned without departing from the scope of the invention.

REFERENCE SIGNS LIST 10 wiring member 20 sheet material 30 insulated wire 40 intersection 42 upper wire portion 44 lower wire portion P1 first position P2 second position

Claims (5)

a sheet material;
a plurality of insulated wires arranged to have intersections on the main surface of the sheet material;
with
insulated wires forming the upper wire portion at the crossing portion are fixed to the sheet material at first and second positions sandwiching the crossing portion;
The insulated wire constituting the upper wire portion is also spaced apart from the first position and the second position along the longitudinal direction at locations other than the first position and the second position. fixed to the sheet material,
A portion of the insulated wire fixed to the sheet material at the first position and the second position is fixed to the sheet material with a gap larger than the gap between the first position and the second position. Existing wiring member. a sheet material;
a plurality of insulated wires arranged to have intersections on the main surface of the sheet material;
with
insulated wires forming the upper wire portion at the crossing portion are fixed to the sheet material at first and second positions sandwiching the crossing portion;
a plurality of lower electric wire portions exist between a pair of the first position and the second position ;
The wiring member , wherein the insulated wires forming the lower wire portion are fixed to the sheet material at a plurality of locations spaced apart in the longitudinal direction . a sheet material;
a plurality of insulated wires arranged to have intersections on the main surface of the sheet material;
with
A portion of the insulated wire that constitutes the intersection is flat,
One insulated wire intersects two or more insulated wires at the crossing portion, and a portion of the one insulated wire that intersects the two or more insulated wires along the longitudinal direction and the two or more A wiring member having a flat portion located between the electric wires. a sheet material;
a plurality of insulated wires arranged to have intersections on the main surface of the sheet material;
with
A portion of the insulated wire that constitutes the intersection is flat,
A portion of the insulated wire other than the crossing portion has a portion that is less flat than a portion constituting the crossing portion,
When the insulated wire is observed along the circumferential direction, the portion constituting the crossing portion has both the portion facing the crossing counterpart insulated wire and the opposite side portion compared to the non-flat portion. A wiring member that is crushed and flat. a sheet material;
a plurality of insulated wires arranged to have intersections on the main surface of the sheet material;
with
A first insulated wire and a second insulated wire having a smaller diameter than the first insulated wire are mixed on the sheet material,
At least one of an upper electric wire portion and a lower electric wire portion is the second insulated wire at all intersections on the sheet material ,
The wiring member , wherein the insulated wires forming the lower wire portion are fixed to the sheet material at a plurality of locations spaced apart in the longitudinal direction .

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