JP2018098146A - Method for manufacturing vehicle wiring material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a vehicle wiring material that is thinner in thickness as compared with a conventional extrusion formed covered electric wire and can form an insulation layer on a long wiring material bent along a body panel.SOLUTION: There is provided a method for manufacturing a vehicle wiring material comprising: a bending step of bending a long wiring material 11 made of a conductive material into a shape conforming to the body panel of a vehicle; and a painting step of powder painting insulative resin material on the surface of a bent worked wiring material 11 to form an insulation layer 13.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for manufacturing a vehicle routing material.

  For example, a rear battery vehicle requires a long battery cable that sends electricity from the rear to the front. As the battery cable, a round or flat thick electric wire for automobiles is generally used. In many of these thick wire manufacturing methods, an insulation coating (polyvinyl chloride or the like) is extrusion-molded on a conductor (a product obtained by twisting copper strands) as a wiring material. In the extrusion molding of the insulating coating, the insulating material is coated on the outer periphery of the conductor by extruding the heat-melted insulating material together with the linear conductor from a die. Therefore, the extrusion molding of the insulating coating is a necessary condition that the conductor is a twisted and soft object, or if it is hard, the conductor is not bent.

  As a method for producing a conductive member having an insulating coating, a bus bar (bus bar) is covered with a semi-cured tape in which a fiber reinforcing material or the like is used as a base material and impregnated or coated with a thermosetting resin, and then cured. Patent Document 2 discloses a bus bar insulation treatment method disclosed in Patent Document 1, and a coated surface of a bus bar that is smoothed by blasting to prevent cracking due to a difference in expansion and contraction due to a temperature change between the bus bar and the resin coating film. A method for forming a coating film for a conductive connector, a method for manufacturing a conductive member of Patent Document 3 in which a bus bar is covered with an insulating material made of a resin that is cured by ultraviolet rays, and the like are known.

JP 59-56317 A Japanese Patent Laid-Open No. 11-203944 JP 2014-107201 A

By the way, when a vehicle routing material such as a battery cable is routed in the vehicle interior, along with the needs for expansion of the interior space of the vehicle interior, the routing along the body panel and the thinning of the cable are required. In order to route the vehicle routing material along the body panel, it is necessary to bend the vehicle routing material according to the shape of the body panel.
However, it is difficult to bend a thick electric wire according to the shape of the body panel. Moreover, it is difficult to extrude the insulation coating for a hard conductor such as a bus bar that is bent along the body panel. Accordingly, there is a demand for a vehicle wiring material that can be routed along the body panel and has a thin, bent conductor formed with an insulating coating.

  The present invention has been made in view of the above situation, and its purpose is thinner than a conventional extruded coated electric wire and an insulating layer for a long wiring material bent along a body panel. It is in providing the manufacturing method of the wiring material for vehicles which becomes possible to form.

The above object of the present invention is achieved by the following configuration.
(1) A bending process in which a long wiring material made of a conductive material is bent into a shape along the vehicle body panel, and an insulating resin material is powder-coated on the surface of the bent wiring material And a coating process for forming an insulating layer.

  According to the method for manufacturing a vehicle routing material having the configuration (1), a long routing material made of a conductive material is bent in advance into a shape along the body panel. In general, the surface of a body panel such as a floor panel along which the routing material is arranged has a complicated uneven surface due to a cross member, a reinforcing rib or the like. When a thick wire is routed along the body panel, the thick wire is arranged on the convex portion. For this reason, the space | interval of a body panel and the interior material provided on it is required for the accommodation height of the minimum thick wire. In addition, since it is difficult to bend the thick electric wire following the convex portion, even in the concave portion, the position of the thick electric wire is restricted, and the height of the interior material cannot be reduced. On the other hand, in the vehicle routing material of this configuration, since the routing material made of a long conductive material without an insulating layer is first bent, the shape along the uneven surface of the complex body panel Can be easily processed. Thereby, there is no restriction like a thick electric wire that cannot be bent in the recess, and the height of the interior material can be reduced. An insulating layer is formed on the surface of the bent wiring material by powder coating. In the powder coating, the insulating layer in the conventional extrusion molding has a thickness of 1 to 2 mm, whereas the insulating layer can be formed with a thickness of 0.1 to 0.2 mm, for example. Thereby, the vehicle routing material having the above-described configuration can reduce the vehicle routing space, and for example, the distance between the body panel and the interior material can be reduced.

(2) The vehicle according to (1), wherein the wiring material includes a step of laminating a plurality of wiring materials in which the insulating layer is formed in a plate thickness direction, the wiring material being made of a flat conductor. Method of manufacturing wiring materials.

  According to the method for manufacturing a vehicle wiring material having the configuration of (2) above, a conventional thick wire is obtained by using a flat conductor for the wiring material and laminating a plurality of wiring materials in the thickness direction. Thus, the vehicle routing material having a plurality of circuits can be configured while suppressing the height. In this case, since it is not necessary to arrange a plurality of wiring materials in a direction orthogonal to the plate thickness direction as in the case of a conventional thick wire, it is possible to suppress an increase in the wiring space in the width direction of the wiring material. it can.

(3) The method for manufacturing a routing material according to (2), further including a shield layer forming step of forming a shield layer around the plurality of routing materials.

  According to the method for manufacturing a vehicle wiring material having the configuration (3), the periphery of the plurality of wiring materials stacked is covered with a conductive braided wire, a foil material, or the like, and further, powder coating is applied to the outside thereof. By providing the insulating layer, a vehicle routing material having a shielding function can be easily manufactured using the same equipment.

(4) The vehicle according to any one of (1) to (3) above, further including a masking step of masking surfaces of connection portions at both ends of the routing material before the coating step. Method of manufacturing wiring materials.

  According to the vehicle wiring material manufacturing method having the configuration (4) described above, it is not desired to perform powder coating by masking a predetermined portion of the wiring material with a masking tape or the like before powder coating. The part can be easily formed. Thereby, the site | part utilized as a connection terminal can be easily formed in the wiring material for vehicles, without increasing a number of parts and providing a special process process.

  According to the method for manufacturing a vehicle routing material according to the present invention, it is thinner than a conventional extruded coated electric wire and is insulated from a long routing material bent along a body panel. A layer can be formed.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

(A)-(d) is process drawing showing the procedure of the manufacturing method of the wiring material for vehicles which concerns on 1st Embodiment of this invention. FIG. 2 is a process diagram showing a procedure of “electrostatic coating method” in the method for manufacturing the vehicle routing material shown in FIG. 1. It is process drawing showing the procedure of the "fluid immersion method" in the manufacturing method of the wiring material for vehicles shown in FIG. It is a whole perspective view of the vehicle routing material formed by the manufacturing method of the vehicle routing material shown in FIG. It is a perspective view showing the example of a wiring with the vehicle wiring material shown in FIG. 4 in the vehicle. (A) is a whole perspective view of the vehicle wiring material shape | molded by the manufacturing method of the vehicle wiring material which concerns on 2nd Embodiment of this invention, (b) is the vehicle wiring material shown to (a). FIG. FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. It is a front view of the edge part in the wiring material for vehicles shown to (a) of FIG. It is a top view of the edge part in the wiring material for vehicles shown to (a) of FIG. It is a cross-sectional view of a vehicle routing material in which a shield layer is provided on the vehicle routing material according to the second embodiment of the present invention. It is a perspective view showing the example of wiring in the vehicle which uses a thick electric wire.

Embodiments according to the present invention will be described below with reference to the drawings.
FIG. 1 is a process diagram showing the procedure of a method for manufacturing a vehicle routing material according to the first embodiment of the present invention.
The vehicle wiring material manufacturing method according to the present embodiment includes a bending process and a painting process. In addition, the wiring material 11 used for a bending process uses the thing previously cut | disconnected by the predetermined shape from the electroconductive metal plate by the shearing process. This shearing process includes punching, drilling, cutting and the like.

  The bending process performed in the bending process is included in the forming process. In addition to bending, the forming includes drawing and overhanging. The vehicle wiring material manufacturing method according to the present embodiment may include these drawing processing and overhanging processing. That is, the bending process according to the present embodiment is a part of the molding process for molding the routing material 11.

  In the bending process, a long wiring member made of a conductive material is bent into a shape that fits along the body panel of the vehicle, for example. In the bending step, for example, folding, butt bending, bending roll processing, roll forming, and the like can be performed. For the routing material of the present invention, a conductive material such as a copper alloy or an aluminum alloy can be used. Moreover, a flat conductor and a round conductor can be used for the routing material. Of course, it is needless to say that various conductive materials can be used for the routing material of the present invention as long as it has rigidity capable of maintaining a bent shape. In this embodiment, the wiring material 11 using a flat conductor made of an aluminum alloy will be described as an example.

In the vehicle wiring material manufacturing method according to the first embodiment, first, a flat and long wiring material 11 is prepared as shown in FIG. Prior to forming the insulating layer 13, the routing material 11 is bent into a shape along the vehicle floor panel 59 (see FIG. 5), as shown in FIG. In particular, in the bending process of the plate, the deformation is slightly returned by the spring back after the process.
As will be described later, in the case of including a step of laminating a plurality of wiring members 11A to 11D (see FIG. 6) in which the insulating layer 13 is formed in the thickness direction, the plurality of wiring materials 11A to 11A 11D is bent by taking into account the thickness of the insulating layer 13 so that the bent wiring members can be stacked with no gap after the insulating layer 13 described later is formed.

As shown in FIG. 1 (c), the routing material 11 in which the bending process is completed is subjected to powder coating on the surface, as shown in the partially enlarged sectional view in FIG. 1 (d), The vehicle routing material 100 having the insulating layer 13 formed on the surface is obtained.
Under the present circumstances, the manufacturing method of the wiring material for vehicles which concerns on this embodiment can provide a masking process before a coating process. In the masking process, for example, the surface of the portion that becomes the connecting portion 15 at both ends of the routing material 11 is masked by using a masking tape 17 or the like (see FIG. 1C). Bolt fixing holes or the like are drilled in advance at both ends of the masked wiring material 11 by drilling. The insulating layers 13 are not formed on both ends of the masked wiring material 11. Therefore, the exposed portions at both ends of the routing material 11 can be used as connection terminals. The connection terminal can be directly connected to the mating harness, the battery electrode, or the alternator terminal by bolt fastening using the bolt hole.

  An insulating layer 13 is formed on the surface of the bent wiring material 11 by powder coating with an insulating resin material. There are mainly two types of powder coating: “electrostatic coating method (spray coating)” and “fluid dipping method (dip coating)”.

FIG. 2 is a process diagram showing the procedure of “electrostatic coating method” in the method of manufacturing the vehicle routing material shown in FIG.
The “electrostatic coating method” is a method in which a paint is charged with a spray gun and applied to an object to be grounded using static electricity.
In the “electrostatic coating method” shown in FIG. 2, first, the routing material 11 is cleaned in the pretreatment tank 19 and dried in the draining drying furnace 21.
Next, in the powder coating booth 23, the powder coating material from the powder coating material supply tank 25 is sprayed by the compressed air from the compressor 27. At this time, a high voltage generator 29 is connected to the spray gun 22 to charge the paint. On the other hand, the surface of the routing material 11 is covered with a coating film of powder coating material by grounding the routing material 11. A recovery device 31 is connected to the powder coating booth 23.
After application of the powder coating material, the coating material is formed by heating in a baking / drying furnace 33, and after cooling, the vehicle routing material 100 which is a coated conductive material is obtained. The “fluid dipping method” described later makes it difficult to manage the film thickness, but the “electrostatic spray method” makes it easy to manage the coating film with a thin film of about 50 microns.

  The thermosetting paint used in the “electrostatic spray method” undergoes a chemical change (crosslinking) by applying heat, and its properties change. Since various performances can be added by the cross-linking reaction, a paint can be selected according to the application. Commonly used base resins are polyester resins, acrylic resins, epoxy resins, hybrid (epoxy / polyester) resins and the like.

FIG. 3 is a process diagram showing the procedure of the “fluid dipping method” in the method for manufacturing the vehicle routing material shown in FIG.
In the “fluid dipping method”, first, the routing material 11 is cleaned in the pretreatment tank 19, and the routing material 11 is preheated in the preheating furnace 37.
Next, immersion is performed in the fluid immersion tank 39. In the dipping, a perforated plate is arranged at the bottom of the fluid dipping tank 39, and the paint is flowed by sending compressed air 41 from the perforated plate, and the preheated wiring material 11 is immersed in the flowing paint. . The paint in the fluid immersion tank 39 is fused to the wiring material 11 by heat to form a thick film.
Then, you may pass through the post-heating tank 43 for improving smoothness. As a result, the vehicle routing material 100 which is a coated conductive material is obtained. In the “fluid dip coating method”, a film thickness of usually 200 to 500 microns can be applied.

  As the thermoplastic powder coating used in the “fluid dipping method”, resins such as vinyl chloride, polyethylene, and nylon can be mainly used. Thermoplastic paints are characterized by softening and changing shape when heat is applied and stabilizing the shape when cooled. Since the thermoplastic powder coating does not involve chemical change due to heat, when heat is applied again, softening and shape change are repeated. Therefore, it is not a baking process like a thermosetting paint.

  In addition, the manufacturing method of the wiring material for vehicles which concerns on this embodiment may include the shield layer formation process which forms a shield layer further around the wiring material 11 to which powder coating was given. . In this shield layer forming step, the periphery of the routing material 11 is covered with a braided wire or a foil material as a shield layer. Thereafter, if necessary, the outer periphery is further covered with an insulating layer 13 formed by powder coating. According to the vehicle routing material provided with the shield layer, it is possible to suppress the emission of noise and to prevent the influence of external noise.

FIG. 4 is an overall perspective view of the vehicle routing material 100 formed by the vehicle routing material manufacturing method described above.
The vehicle routing material 100 shown in FIG. 4 is used as a battery cable, for example. As described above, the routing material 11 obtained after finishing the bending process and the painting process includes a plurality of bent portions 45, 47, 49, etc. for running along the floor panel (body panel) 59 of the vehicle. A plurality of concave bent portions 51 and 53 straddling the cross member of the panel 59 are formed. In this vehicle routing material 100, one (one) long routing material 11 is covered with an insulating layer 13 formed by powder coating, and has one connection portion 15 at each end.

FIG. 5 is a perspective view showing an example of the vehicle routing material 100 in a vehicle.
When the vehicle routing material 100 shown in FIG. 4 is used as a battery cable, it straddles the floor panel 59 across the front cross member 55 on the front (Fr) side and the rear cross member 57 on the rear (Rr) side of the vehicle. Routed along. Accordingly, in the rear battery vehicle, the front alternator 63 and the like can be connected to the fuse box 61 connected to the rear battery 62 by the vehicle routing material 100.

  In the vehicle wiring material 100, an insulating layer 13 is formed on the long wiring material 11 that is bent. Since the vehicle wiring material 100 has a thin powder coating thickness, it can be made thinner and lighter than conventional electric wires. And the vehicle wiring space can be reduced by making the vehicle wiring material 100 thinner. As a result, the vehicle routing material 100 can be routed even in a space-saving section (for example, a gap between the floor panel 59 and the floor mat) where the routing space is desired to be minimized as the cabin living space is expanded. .

  In the present embodiment, the battery cable that connects the fuse box 61 and the alternator 63 is configured by a single vehicle routing material 100, but is configured by a vehicle routing material that is divided into a plurality in the longitudinal direction. Needless to say, it can be done. The divided vehicle routing material is electrically connected via a branch box, a connection connector, or the like.

6A is an overall perspective view of the vehicle routing material 200 formed by the method for manufacturing a vehicle routing material according to the second embodiment of the present invention, and FIG. It is a disassembled perspective view of the wiring material 200 for vehicles shown to a). FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG.
As shown in FIGS. 6A and 6B, the vehicle routing material 200 according to the second embodiment is a flat and long routing material 11A having an insulating layer 13 formed on the surface thereof. By stacking ˜11D, it becomes possible to deal with multiple circuits. Although FIG. 6 illustrates the case of the vehicle routing material 200 composed of four layers of routing materials 11A to 11D, the number of layers (number of sheets) is not limited to this. The four layers of routing materials 11A to 11D are integrated by, for example, a plurality of clamp members arranged at predetermined intervals along the longitudinal direction.
The connection part 15 of each wiring material 11A-11D can be formed in the width | variety which divided | segmented the full width of the wiring material 200 for vehicles by the number of layers. As in the illustrated example, the connection portion 15 is provided with a bolt fixing hole 65.

  As shown in FIG. 6 (b), the four circuits in the illustrated example are formed by laminating wiring members 11A to 11D in the order of 48V minus, 48V plus, 12V plus, 12V minus, for example, from the lower layer. The routing material 200 can be configured. In this case, it is preferable that adjacent layers have the same polarity. In the vehicle routing material 200 in the illustrated example, “48V plus” and “12V plus” are adjacent in the second and third layers. The vehicle routing material 200 in which multiple circuits are stacked can improve noise resistance performance by arranging the same poles adjacent to each other.

  As shown in FIG. 7, for the vehicle routing material 200, flat routing materials 11A to 11D made of aluminum alloy having a thickness (t) of 0.8 mm and a width (W1) of 70 mm, for example, are used. ing. Accordingly, the aluminum flat wiring members 11A to 11D each correspond to a 56 sq electric wire. Moreover, each wiring material 11A-11D is covered with the insulating layer 13 which sets thickness (t1) to 0.2 mm. Therefore, the distance between the laminated conductors is 0.4 mm. Therefore, the total width (W) of the vehicle routing material 200 is 70.4 mm, and the total thickness (T) is 4.8 mm. Therefore, compared with the case where the 50 sq aluminum electric wire whose standard finishing outer diameter is 12.0 mm is used, the wiring member 200 for vehicles can make the thickness half or less.

8 and 9 are a front view and a plan view of an end portion of the vehicle routing material 200, respectively.
As shown in FIG. 8, in the vehicle routing material 200, the width (w) of each connecting portion 15 in the routing materials 11A to 11D is 16.0 mm. In addition, the interval (d) between adjacent connection portions is set to 2.0 mm. The width (w) of the connecting portion 15 is such that the outer diameter of the tool used when fastening the nut to the bolt inserted into the bolt fixing hole 65 drilled in the connecting portion 15 and the interference with the tightened nut. It is the minimum dimension necessary to avoid it.

Here, the thickness (t) of each wiring material in the vehicle wiring material 200 made of a flat conductor is (n) the number of circuits, and the width of the connecting portion 15 at both ends of each wiring material (w). When the interval between the adjacent connecting portions 15 is (d) and the required cross-sectional area (electric wire sq) of the wiring member is (S), it can be calculated by the following formula (A).
t ≧ S / (n × w + d (n−1)) (A)
That is, according to the above formula (A), the required thickness of each wiring member (t) according to the electric wire sq of the conventional electric wire (corresponding to the necessary cross-sectional area (S) of each wiring member). ) And the vehicle routing material 200 can be easily replaced from the conventional electric wire.

  Further, the vehicle routing material manufacturing method according to the second embodiment includes a shield layer forming step of further forming a shield layer 12 around the plurality of routing materials 11A to 11D to which powder coating is applied. It may be included. In this shield layer forming step, as shown in FIG. 10, the periphery of the plurality of routing materials 11 </ b> A to 11 </ b> D is covered with a braided wire or a foil material as the shield layer 12. Thereafter, if necessary, the outer periphery is further covered with an insulating layer 13 formed by powder coating. According to the vehicle routing material 200 </ b> A provided with the shield layer 12, it is possible to suppress noise emission and to prevent the influence of external noise.

Next, the operation of the above configuration will be described.
In the method for manufacturing the vehicle routing material 100 according to the first embodiment, the long routing material 11 made of a conductive material is bent in advance into a shape along the floor panel 59. In general, the surface of the floor panel 59 along which the routing material 11 is arranged is a complex uneven surface due to the front cross member 55, the rear cross member 57, and the like.

  For example, as shown in FIG. 11, when a thick round electric wire 67 is routed along the floor panel 59, the thick round electric wire is placed on convex portions such as the front cross member 55 and the rear cross member 57. 67 will be arranged. For this reason, the space | interval of the floor panel 59 and the interior material provided on it is required by the accommodation height of the thick round electric wire 67 at the minimum. In addition, since the thick round electric wire 67 is difficult to bend following the convex portions of the front cross member 55 and the rear cross member 57, the position of the thick round electric wire 67 is restricted even in the concave portion. The height of the material cannot be lowered.

  On the other hand, in the vehicle routing material 100 having the above-described configuration, since the routing material 11 made of a long conductive material that does not form the insulating layer 13 is first bent, as shown in FIG. It becomes possible to easily process into a shape along the uneven surface of the complicated floor panel 59. Thereby, there is no restriction like the thick round electric wire 67 that cannot be bent in the recess, and the height of the interior material can be reduced. An insulating layer 13 is formed on the surface of the bent routing material 11 by powder coating. In the powder coating, the insulating layer 13 in the conventional extrusion molding has a thickness of 1 to 2 mm, whereas the insulating layer 13 can be formed with a thickness of 0.1 to 0.2 mm, for example. Thereby, the vehicle routing material 100 can reduce a vehicle routing space and can reduce the space | interval of the floor panel 59 and an interior material.

  Moreover, in the manufacturing method of the wiring material 200 for vehicles which concerns on the said 2nd Embodiment, a flat type conductor is used for the wiring materials 11A-11D, and several wiring materials 11A-11D are laminated | stacked in a plate | board thickness direction. Thus, the vehicle routing material 200 having a plurality of circuits can be configured while suppressing the height as compared with the conventional thick wire. In this case, since it is not necessary to arrange a plurality of wiring materials 11A to 11D in a direction orthogonal to the plate thickness direction as in the case of conventional thick wires, the wiring space in the width direction of the wiring materials 11A to 11D. Can be prevented from expanding.

  Moreover, in the manufacturing method of the vehicle routing material 200A according to the second embodiment, the periphery of the stacked routing materials 11A to 11D is covered with the shield layer 12, and further, the insulating layer is coated with powder coating on the outside thereof. By providing 13, it is possible to easily manufacture the vehicle routing material 200A having a shield function using the same equipment.

  Furthermore, in the manufacturing method of the vehicle routing material 100 (200, 200A) according to the above embodiment, masking is performed on a predetermined portion (connecting portion 15) of the routing material 11 (11A to 11D) before powder coating. By applying masking by applying the tape 17 or the like, it is possible to easily form a portion where powder coating is not desired. Thereby, the connection part 15 which is a site | part utilized as a connection terminal is easily formed in the wiring material 100 (200, 200A) for vehicles, without increasing a number of parts and providing a special processing process. Can do.

  Therefore, according to the manufacturing method of the vehicle routing material 100 (200, 200A) according to each of the above-described embodiments, it is thinner than a conventional extruded covered electric wire and is bent along the floor panel 59. The insulating layer 13 can be formed on the long wiring material 11 (11A to 11D).

  The present invention is not limited to the above-described embodiments, and the configurations of the embodiments may be combined with each other, or may be modified or applied by those skilled in the art based on the description of the specification and well-known techniques. The invention is intended and is within the scope of seeking protection.

  For example, in the above configuration example, the case where a flat conductor is used for the routing material 11 has been described as an example. However, the routing material of the present invention may also use a round conductor. In the above configuration example, the case where a long flat material is bent is described as an example. However, the method for manufacturing a vehicle routing material is a coating process on a long flat material which is not subjected to bending. Thus, the insulating layer 13 can also be formed.

Here, the features of the above-described embodiment of the method for manufacturing the vehicle routing material according to the present invention are summarized and listed in the following [1] to [4], respectively.
[1] A bending process of bending a long wiring material (11) made of a conductive material into a shape along the vehicle body panel (floor panel 59), and the bending wiring material (11) And a coating process for forming an insulating layer (13) by powder-coating an insulating resin material on the surface of the vehicle.
[2] The wiring material (11) includes a flat conductor, and includes a step of laminating the wiring materials (11A to 11D) on which the insulating layer (13) is formed in the thickness direction. The method for manufacturing a vehicle routing material (200) according to the above [1], which is characterized by the following.
[3] The vehicle routing material (200A) according to [2], further including a shield layer forming step of forming a shield layer (12) around the plurality of routing materials (11A to 11D). ) Manufacturing method.
[4] Any of the above [1] to [3], including a masking step of masking the surface of the connecting portion (15) at both ends of the routing material (11) before the coating step. The manufacturing method of the wiring material (100,200) for vehicles as described in one.

DESCRIPTION OF SYMBOLS 11 ... Routing material 13 ... Insulating layer 15 ... Connection part 59 ... Floor panel (body panel)
100, 200 ... vehicle routing material

Claims (4)

A bending process of bending a long wiring material made of a conductive material into a shape along the body panel of the vehicle;
A coating process in which an insulating resin material is powder-coated on the surface of the wiring material that has been bent to form an insulating layer;
The manufacturing method of the wiring material for vehicles characterized by including.   The vehicle routing material according to claim 1, comprising a step of laminating a plurality of the routing materials in which the routing material is made of a flat conductor and the insulating layer is formed in a plate thickness direction. Manufacturing method.   The method for manufacturing a vehicle routing material according to claim 2, further comprising a shield layer forming step of forming a shield layer around the plurality of routing materials.   The manufacturing of the vehicle routing material according to any one of claims 1 to 3, further comprising a masking step of masking surfaces of connecting portions at both ends of the routing material before the painting step. Method.

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