JP2009104889A - Automobile wire harness and method for manufacturing wire harness for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To carry out diameter reduction and weight reduction of a wire harness by using an enamel wire in the wire harness for automobile, and arrange so that bundling by taping of a plurality of enamel wires becomes unnecessary. <P>SOLUTION: This is the wire harness cabled in the automobile, in which a plurality of enamel wires are bundled, and these bundled enamel wires are cured while the enamel wires are firmly adhered mutually by an adhesive composed of an insulating resin or a fusion material. The plurality of enamel wires of the cured state are formed into a two-dimensional shape and/or a three-dimensional shape coping with a cabling shape for the automobile. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wire harness for an automobile and a method for manufacturing the wire harness for an automobile, and intends to suppress an increase in diameter and a weight of the wire harness.

Conventionally, electric wires used in wire harnesses for automobiles generally have a configuration in which an insulating resin coating layer is formed on an outer peripheral surface of a conductor obtained by twisting a plurality of strands by an extruder, and a plurality of such electric wires are bundled. The wire harness is formed by binding with tape winding.
In many cases, these wire harnesses are externally covered with an external protective material such as a separate protector or corrugated tube in order to prevent interference with an external interference material and to regulate a routing route.

However, in recent years, with the increase in electrical components mounted on automobiles, there is a problem that the number of wires to be used increases and the length of the wires also increases, and the wire harness is increased in diameter, lengthened, and weighted.
In addition, as the wire harness becomes larger and longer, the amount of wire bundling tape and exterior protective material used increases, further increasing weight, and man-hours for tape winding work and exterior protective material mounting work are reduced. There is a problem that the cost increases.

Therefore, in order to reduce the diameter and weight of the wire harness, it has been proposed to use an enameled wire in which an insulating resin paint is applied to the outer peripheral surface of the conductor as an electric wire of the wire harness.
For example, in Japanese Patent Laid-Open No. 2001-216848 (Patent Document 1), as shown in FIG. 12, a plurality of enamel wires 2 are arranged in parallel at intervals, and each enamel wire 2 is fixed to a film member 3 and integrated. A wire harness 1 is provided.

  The wire harness 1 made of the enameled wire 2 provided in Patent Document 1 is improved in terms of strength of the enameled wire 2 because the enameled wires 2 are independent from each other at portions other than being fixed to the film member 3. There is room for. Further, since each enameled wire 2 is independent, it is difficult to maintain the routing shape of the enameled wire 2, and the enameled wire 2 is swung by the vibration of the automobile and comes into contact with the vehicle body panel. There is room for improvement in that it may be damaged or short-circuited with the vehicle body panel.

JP 2001-216848 A

  The present invention has been made in view of the above problems, and by using an enameled wire for a wire harness for an automobile, the wire harness can be reduced in diameter and weight, and a plurality of enameled wires need not be wound with tape. At the same time, increasing the strength is an issue.

In order to solve the above problems, the present invention provides, as a first invention, a wire harness routed in an automobile,
A plurality of enamel wires are converged, and these converged enamel wires are cured in a state where the enamel wires are fixed to each other by an adhesive or a fusion material made of an insulating resin, and the plurality of enamel wires are cured in the cured state. The wire has a two-dimensional shape and / or a three-dimensional shape corresponding to a wiring shape to the automobile, and provides a wire harness for an automobile.

According to the automobile wire harness having the above-described configuration, since the enameled wire formed by applying an insulating layer to the automobile wire harness is used, the wire harness can be reduced in diameter and weight, and particularly focused. Since a plurality of enameled wires are fixed and hardened by an adhesive or a fusing material, a binding tape can be dispensed with.
In addition, since a plurality of enamel wires are hardened in a converged state, they can have sufficient rigidity and strength, and can be swung by the vibration of the automobile and interfere with the body panel and surrounding members. It is possible to prevent damage to the enameled wire.
Furthermore, since the wire harness is hardened, the two-dimensional shape and / or the three-dimensional shape corresponding to the wiring shape to the automobile is maintained, and the wiring harness is routed to the vehicle body. Since the shape of the wire harness can be maintained by a hardened adhesive or fusion material, the number of attachment parts such as clamps for attaching the wire harness to a vehicle body panel or the like can be reduced. Can do.
The adhesive is cured at room temperature, or cured by heating or ultraviolet irradiation and fixed to the enameled wire, and the fusion material is cured after heating and cured and fixed to the enameled wire. .

The enameled wire is formed by applying one or more layers of insulating resin paint on the outer peripheral surface of a single core wire selected from copper, aluminum, silver, gold, and an alloy containing at least one of these elements. An insulating layer is preferably provided.
In the present invention, since the insulating layer is applied and formed, the conductor is formed of a single core wire, and since it is a single core wire, the twisting operation of the strand can be made unnecessary and the diameter can be reduced as compared with the electric wire. As a result, the wire harness can be made thinner and lighter.

Further, the thickness of the hardened adhesive or fusion material that is fixed to the outer peripheral surface of the insulating layer of each enameled wire and that bonds and fixes adjacent enameled wires to each other is changed according to the wiring region. Preferably it is.
According to the above configuration, by changing the thickness of the cured adhesive or the fusion material according to the wiring area of the wire harness, it is possible to obtain a wire harness having an outer shape corresponding to the wiring area. Thinning the adhesive or fusion material at the site to be routed in a small routing area to reduce the outer shape, allowing the wiring harness to be routed in a narrow space, while being routed in a large routing area The site adhesive or fusing material can be thickened to provide the function of the protector. As a result, it is not necessary to attach a separate protector.

The insulating layer of the enameled wire is preferably composed of one or more selected from formal, polyurethane, polyester, polyamide, polyesterimide, polyamideimide, and polyimide.
The cured adhesive or fusing material is preferably selected from epoxy, nylon, polyvinyl butyral, polyester, unsaturated polyester, silicone, alkyd, phenol, drill resin, and acrylic resin.
When the adhesive is made of an ultraviolet curable resin, acrylic monomers and oligomers (polyester, polyurethane, epoxy acrylate, etc.), photopolymerization initiators (benzophenone, benzoin ethyl ether, etc.), polymerization inhibitors, etc. Can be used.

Moreover, it is preferable that the enameled wire is provided at a required portion in the length direction of the wire harness with a free region where the enamel wires are not fixed with the adhesive or the fusion material, and the free region can be bent.
The enamel wire in the free region may be configured not to be provided with an adhesive and a fusion material, or provided with a fusion material, but the configuration in which the fusion material is not cured without heating or ultraviolet irradiation. It is good.
According to the above configuration, even if the wire harness is a large wire harness or a wiring harness with a complicated arrangement shape, the wire harness is arranged while the wire harness is bent in a free region not fixed by the adhesive or the fusion material. The search work can be easily performed.
Also, by folding the wire harness in the free area, the package can be made compact and accommodated in the transport container, and the wire harness can be easily transported from the wire harness manufacturing location to the vehicle manufacturing line where the wire harness is attached to the vehicle body. can do.

The wire harness is not attached with an external protective material including a tube and a protector, and is attached with a belt clamp or a tape clamp at a required position, and can be routed without contact with the vehicle body panel via these clamps.
According to the said structure, attachment of a separate protector and a corrugated tube can be made unnecessary by enlarging the thickness of an adhesive agent or a melt | fusion material. And if it attaches to a vehicle body panel non-contacting via a clamp, it can prevent that the wire harness which is not mounting | wearing with an exterior member contacts with a vehicle body panel and wears.
As a clamp, you may attach a tape clamp that is fixed to the wire harness with tape. However, the wire harness of the present invention does not bind with tape and does not require tape winding. A belt clamp that wraps a band around a wire harness and fastens and fixes it is more preferable than a clamp.

The automotive wire harness is routed inside a door panel, an instrument panel, and / or a roof panel.
Inside the door panel, instrument panel, and roof panel, the wire harness that is routed is a place that is not easily affected by external interference, so a plurality of enameled wires are fixed together with an adhesive or a fusion material and an exterior material is attached. It is suitable as a part for routing the wire harness of the present invention that is not attached.

Moreover, this invention is a manufacturing method of the said wire harness for motor vehicles as 2nd invention, Comprising:
Applying the fusion material to the outer peripheral surface of each of the plurality of enamel wires to form a self-bonding electric wire,
The plurality of self-bonding electric wires are supported by an electric wire holding jig on the wire harness assembly work table and wired along a required wiring path, and converged into a required wire harness shape,
Next, a method of manufacturing a wire harness for an automobile is provided in which the enameled wires are heated to melt the fusion material to melt the enameled wires, and are then cured.

According to the above method, the self-bonded electric wire having a fusion material applied to the outer peripheral surface of the enameled wire is supported by the electric wire holding jig, wired along the required wiring path, converged, and the fused enameled wire is fused. Since the enameled wire is heated and melt-cured, and the enamel wires are fixed and bound together, no tape winding work is required to bind the enamel wires together, and the wire harness can be easily manufactured. .
Examples of the method of heating the fusion material include a method of blowing hot air on a wire harness laid in a required shape, a method of heating the wire harness in a heating furnace, a method of energizing and heating the enamel wire of the wire harness, and the like. It is done.

When the above-mentioned fusion material is applied to the outer peripheral surface of each enameled wire to form a self-fusion wire, examples of the fusion material include polyvinyl butyral, nylon, and epoxy.
In addition, after converging a plurality of enamel wires that do not have the fusion material on the outer peripheral surface, an adhesive or a fusion material may be applied to the converged enamel wires, and in this case, the adhesive or the fusion material may be applied. Examples of the material include epoxy, nylon, polyvinyl butyral, polyester, unsaturated polyester, silicone, alkyd, phenol, drill resin, and resin made of acrylic.

Furthermore, the present invention provides, as a third invention, a method of manufacturing a wire harness for an automobile,
A plurality of the enameled wires are supported on the wire harness assembly worktable with an electric wire holding jig, wired along a required wiring path, and converged into a required wire harness shape,
Next, an ultraviolet curable resin as the adhesive is applied to the enameled wire,
Then, the present invention provides a method for manufacturing a wire harness for an automobile in which the adhesive applied to an enameled wire is irradiated with ultraviolet rays and cured.

  According to the above method, an adhesive made of an ultraviolet curable resin is applied to the focused enamel wire, and the adhesive is cured by irradiating with ultraviolet rays, so that the enamel wires are fixed and bound together. Similar to the second aspect of the invention, the tape winding operation is not required for binding the enamel wires, and the wire harness can be easily manufactured.

As described above, the wire harness for automobiles of the present invention uses enameled wires for the wire harnesses for automobiles, so that the wire harness can be reduced in diameter and weight, and a plurality of enameled wires that are focused. Since they are fixed and hardened by an adhesive or a fusion material, a binding tape can be dispensed with.
In addition, since the plurality of enamel wires are hardened in a focused state, the wire harness can have sufficient rigidity and strength. By preventing interference, damage to the enameled wire can be prevented.

  In addition, according to the method for manufacturing a wire harness for automobiles of the present invention, the fusion material applied to the outer peripheral surface of a plurality of enameled wires is heated to melt and cure, or the ultraviolet curable type applied to the focused enameled wires. The adhesive made of resin is cured by irradiating with ultraviolet rays, and the enameled wires are fixed and bound together, so no tape winding work is required to bind the enameled wires, making the wire harness easy Can be manufactured.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a first embodiment of the present invention.
The electric wire which comprises the wire harness W / H for motor vehicles of this embodiment consists of several enamel wires 10 as shown in FIG.1 (B). Each enameled wire 10 is provided with an insulating layer 12 by applying an insulating resin paint made of polyurethane to the outer peripheral surface of a copper wire 11 made of a single core wire.

The plurality of enamel wires 10 are formed by adhering adjacent enamel wires 10 to each other through a fusing material 13 to form a wire harness W / H. In this embodiment, polyvinyl butyral is used as the fusing material 13.
The fusing material 13 is provided in advance so as to cover the outer peripheral surface of the insulating layer 12 of each enameled wire 10 and, as shown in FIG. The fusing material 13 is melted and penetrated into the gaps between the enamel wires 10 to fuse the enamel wires 10 together, and the fusing material 13 is cured to fix the enamel wires 10 together.
In FIG. 1, all enamel wires 10 have substantially the same diameter, but enamel wires having different diameters are also fixed by the fusion material 13. In this embodiment, the allowable current values are 10A, 15A, and 20A. , 25A, 30A enameled wire is used.

  In the present embodiment, the wire harness W / H formed by integrally binding the plurality of enamel wires 10 with the fusion material 13 is a chamber of the inner panel 21 of the back door 20 of the automobile as shown in FIG. It is supposed to be routed along the inner side. The wire harness W / H is hardened by the fusion material 13 so as to have a three-dimensional shape along the inner panel 21 that is the wiring position.

Moreover, it attaches to the inner panel 21 via the belt clamp 30 attached to the required location of the wire harness W / H.
As shown in FIG. 3B, the belt clamp 30 is provided with a locking piece 30c in a through hole 30b formed in the main body 30a, and the belt 30d protruding from one end of the main body 30a is connected to the wire harness W. / H is wound around the outer peripheral surface and inserted into the through hole 30b of the main body portion 30a, and the locking claw 30e provided on the outer surface of the belt portion 30d is locked and fastened to the locking piece 30c in the through hole 30b. It is said.
Further, the belt clamp 30 includes a vehicle body locking portion 30h including a shaft portion 30f protruding from the lower surface of the main body portion 30a and both side blade portions 30g protruding from both ends of the shaft portion 30f. ), The vehicle body locking portion 30h of the belt clamp 30 attached to the wire harness W / H is inserted into the locking hole 21a of the inner panel 21, and both side blade portions 30g are locked to the periphery of the locking hole 21a. The wire harness W / H is fixed to the inner panel 21 via the belt clamp 30.

As shown in FIG. 3A, the main body 30a of the belt clamp 30 is interposed between the wire harness W / H and the inner panel 21 with the wire harness W / H attached to the inner panel 21 by the belt clamp 30. By being disposed, a gap S is provided between the wire harness W / H and the inner panel 21.
In addition, the wire harness W / H has the required rigidity because the bonding material 13 is cured, and does not loosen between the belt clamps 30. Further, even if the vehicle body vibrates, the wire harness W / H H does not oscillate greatly, and the wire harness W / H is routed in a non-contact manner with the inner panel 21. Therefore, the wire harness W / H does not have an exterior protective material.

A connector 31 attached to the end of the wire harness W / H is connected to a connector 32 of another wire harness routed to the back door 20.
In this embodiment, before attaching the resin inner panel 21 to the outer panel of the back door 20, the wire harness W / H is attached to the inner panel 21 and wired, and modularized in advance.
2 shows a state in which no trim is attached to the inner panel 21, and when a trim (not shown) is attached to the inner panel 21, the wire harness W / H is covered by the trim so that it cannot be seen from the outside. Become.

In the wire harness W / H of the present invention described above, since the conductor is made of a single core wire and the enameled wire 10 having a thin insulating layer is used, the wire harness W / H can be reduced in diameter and weight, and can be focused. Since the plurality of enameled wires 10 are fixed to each other by the fusing material 13 and hardened, tape winding and binding can be made unnecessary.
Further, since the plurality of enamel wires 10 are hardened in a converged state, sufficient rigidity and strength can be provided, and the vibration is caused by the vibration of the automobile to interfere with the vehicle body panel and surrounding members. It is possible to prevent the enameled wire 10 from being damaged.
Furthermore, since the wire harness W / H is cured and has a three-dimensional shape corresponding to the wiring shape to the automobile, and the shape is maintained, the wire harness W / H can be directly fitted to the inner panel 21. The wiring work of the wire harness W / H to the vehicle body can be facilitated.
Furthermore, since the fusing material 13 provided on the outer peripheral surface of the enameled wire 10 protects the enameled wire 10 from an external interference material, it is possible to eliminate the need for an exterior protective material that is externally mounted on the wire harness W / H. In addition, the outer shape of the wire harness W / H can be reduced by not providing the exterior protective material.

In this embodiment, the fusion material 13 is polyvinyl butyral, but it may be epoxy or nylon.
The conductor of the enameled wire 10 is copper, but copper alloy, aluminum, aluminum alloy, silver, silver alloy, gold, gold alloy may be used, and the insulating layer 12 is polyurethane, but formal, polyester, polyamide, polyester It is good also as a structure which consists of 1 type or multiple types selected from an imide, a polyamideimide, and a polyimide.
Furthermore, in this embodiment, although the wire harness W / H is routed inside the back door 20, it may be routed inside the side door panel, instrument panel, and roof panel.

Next, a method for manufacturing the wire harness W / H will be described.
On the wire harness assembly work table 40 used for manufacturing the wire harness W / H, as shown in FIG. 4, an electric wire holding jig 41 for holding the wire harness W / H in a required routing shape is provided. Yes. A guide pin 41 a that sandwiches the enameled wire 10 from both sides is provided at the tip of the wire holding jig 41 so that the wired enameled wire 10 is in close contact therewith.

First, each enameled wire is made into a self-bonded electric wire by baking polyvinyl butyral as a fusion material 13 on the outer peripheral surface of each enameled wire 10.
Next, terminals are attached to the terminals of the self-bonding enameled wire, and these terminals are accommodated in the connector to form a temporary binding harness.

Next, the plurality of self-bonded electric wires temporarily bonded are supported by the electric wire holding jig 41 on the wire harness assembly work table 40 and wired along the required wiring path when being routed to the inner panel 21; Focus on the required wire harness shape. At this time, the enamel wires 10 are brought into close contact with each other with the enamel wire 10 sandwiched between the guide pins 41 a of the electric wire holder 41.
Next, hot air of 150 degrees is blown onto the converged enameled wire 10 for 10 minutes, and the fusing material 13 is heated and melted to fuse the enameled wires 10 together, and then the fusing material 13 is cured to enamel the wire. 10 are fixed together.
Then, the belt clamp 30 is attached to a required location.
Finally, the wire harness W / H formed in the required shape is removed from the wire holding jig 41.

5 and 6 show a first modification of the first embodiment.
In the wire harness W / H of this modified example, as in the first embodiment, the fixing region W / H-1 in which the enamel wires 10 are fixed to each other with the fusion material is provided, but the entire region in the length direction is fixed. Instead of the region W / H-1, a free region W / H-2 in which the enamel wires 10 are not fixed to each other with a fusion material is provided at a required position in the length direction.

  In the free region W / H-2, as shown in FIG. 5B, no fusion material is provided on the outer peripheral surface of the insulating layer 12 of the enameled wire 10, and the enameled wires 10 are not fixed to each other. Thus, in the free region W / H-2, since there is no cured fusion material, the wire harness W / H has flexibility, and as shown in FIG. Bending is possible.

According to the said structure, even if it is a large wire harness and a wiring harness with a complicated wiring shape, bending the wire harness W / H in the free area W / H-2 which is not fixed with the fusion | melting material, The wiring work of the wire harness W / H can be easily performed.
In addition, the packaging can be made compact by bending the wire harness W / H in the free region W / H-2, and the wire harness is moved from the production site of the wire harness W / H to the vehicle production line for attaching the wire harness W / H to the vehicle body. It can be accommodated compactly in a container that transports W / H.
In addition, in this modification, although it is set as the structure which does not provide a fusion material in the enamel wire of the site | part used as free area W / H-2, the fusion material is provided in the whole area | region of the length direction of an enamel wire, It is good also as a structure which does not heat the melt | fusion material of the site | part used as free area | region W / H-2, and does not fuse.
Since other configurations and operational effects are the same as those of the first embodiment, the same reference numerals are given and description thereof is omitted.

7 to 9 show a second modification of the first embodiment.
In the present modification, the thickness of the fusion material 13 is partially changed in the fixing region W / H-1 of the wire harness W / H.
In the area W / H-1a of the fixing area W / H-1, the thickness of the fusion material 13 is substantially equal to that of the first embodiment, while in the small diameter area W / H-1b, FIG. As shown, the thickness of the fusion material 13 is made thinner than the region W / H-1a. In the large-diameter region W / H-1c, as shown in FIG. It is thicker than / H-1a.
That is, as shown in FIG. 8 (A), the enameled wire 10 in the portion that becomes the small diameter region W / H-1b is made thin with the fusion material 13 applied to the outer peripheral surface, and FIG. 8 (B). As shown, the fusion material 13 after fusion is thinned to reduce the outer shape.
On the other hand, as shown in FIG. 9A, the enamel wire 10 in the portion that becomes the large diameter region W / H-1c is thickened with the fusion material 13 applied to the outer peripheral surface, and FIG. ), The outer shape is increased by thickening the fusion material 13 after fusion.

According to the said structure, since the thickness of the hardened | fusion material 13 is changed according to the wiring area | region of a wire harness, it can be set as the wire harness W / H which has the external shape according to a wiring area | region. . That is, the portion that is routed in the narrow routing region is the small-diameter region W / H-1b where the fusion material 13 is thin, and the wire harness W / H can be routed in a narrow space, while the large routing The region routed in the region is a large-diameter region W / H-1c where the fusing material 13 is thick, so that the rigidity and strength of the wire harness W / H can be increased and the function of the protector can be imparted.
In addition, since another structure and an effect are the same as that of 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

FIG. 10 shows a third modification of the first embodiment.
In this modification, the wire harness W / H is attached to the inner panel 21 of the back door via a tape clamp 33 instead of the belt clamp of the first embodiment.
In a state where the substrate portion 33a of the tape fixing clamp 33 is along the wire harness W / H, the tape T is wound around both sides of the substrate portion 33a to fix the tape fixing clamp 33 to the wire harness W / H. The vehicle body locking portion 33b protruding from the center of the substrate portion 33a of the tape clamp 33 is inserted and locked into the locking hole 21a of the inner panel 21, and the wire harness W / H is attached to the inner panel 21. At this time, a gap S corresponding to the thickness of the board portion 33a is provided between the wire harness W / H and the inner panel 21, and the wire harness W / H is routed in a non-contact manner on the inner panel 21. Yes.
In addition, since another structure and an effect are the same as that of 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

FIG. 11 shows a second embodiment of the present invention.
The enameled wire 10 ′ used in this embodiment is coated with polyesterimide on the outer peripheral surface of a copper wire 11 made of a single core wire to provide an inner insulating layer 12A, and is coated with polyamideimide on the outer peripheral surface of the inner insulating layer 12A. Thus, an outer insulating layer 12B is provided, and the insulating layer 12 ′ has a two-layer structure. Further, a fusion material is not applied in advance to the outer peripheral surface of the enameled wire 10 ′.

First, as shown in FIG. 11 (A), the enameled wire 10 ′ to which no fusion material is attached is wired and focused on the wire holding jig 41 on the wire harness assembly work table 40.
Next, as shown in FIG. 11 (B), a fusion material 13 ′ made of an uncured epoxy resin is applied to the converged enamel wire 10, and the fusion material 13 ′ applied to the gap between adjacent enamel wires 10 ′. Infiltrate.
The epoxy resin applied to the enameled wire has, for example, a viscosity of 250 P or less at 25 degrees, a hardness D of 85 or more as measured by JIS K 6253, and a glass transition point of 100 degrees or more.
As an application method of the epoxy resin, in this embodiment, the epoxy resin is applied to the surface of the enamel wire 10 by brush. As a method for applying the resin, there are impregnation, dripping, and mist application in addition to the application by brush.
Next, hot air of 120 degrees is blown onto the enamel wire 10 for 15 minutes to cure the fusion material 13 ′ and fix the enamel wires 10 to each other.
Thereafter, a belt clamp is attached to the wire harness W / H, and finally, the wire harness W / H to which the enamel wires 10 are fixed is removed from the wire harness assembly work table 40.

According to the above configuration, as in the first embodiment, the effect that the wire harness W / H can be reduced in diameter and weight can be obtained, and the enameled wire in which the fusion material 13 ′ is routed in a required shape. 10, the application position and the application amount of the fusion material 13 ′ can be easily set as appropriate according to the wiring shape of the wire harness W / H.
In the configuration of this embodiment, for example, when the wire harness W / H is a 24-circuit back door wire harness, the weight is reduced by 27% compared to the electric wire made of stranded wire shown in the conventional example, and the trunk of the wire harness The cross-sectional area of the part can be reduced by 48%.
In addition to the epoxy resin, the fusing material 13 ′ applied to the enameled wire includes nylon, polyvinyl butyral, polyester, unsaturated polyester, silicone, alkyd, phenol, drill resin, acrylic resin, and the like.
In this embodiment, two layers of insulating resin paint are applied to form a two-layer structure, but three or more layers may be applied.
Since other configurations and operational effects are the same as those of the first embodiment, the same reference numerals are given and description thereof is omitted.

  Further, as a modification of the second embodiment, the enameled wire 10 ′ not attached with the fusion material is wired to the electric wire holding jig 41 on the wire harness assembly work table 40 and converged, and the converged enameled wire An adhesive, which is an ultraviolet curable resin made of an uncured acrylic resin, is applied to 10 ′, and the adhesive applied to the enameled wire 10 ′ is irradiated with ultraviolet rays from all directions to cure the adhesive. The wires 10 may be fixed together.

1A and 1B show a first embodiment of the present invention, in which FIG. 1A is a cross-sectional view of an enameled wire before fusion, and FIG. 1B is a cross-sectional view of an enameled wire after fusion. It is drawing which shows the state which wired the wire harness to the back door of the motor vehicle. (A) is drawing which shows the state which attached the wire harness to the inner panel of the back door via the belt clamp, (B) is sectional drawing of a belt clamp. It is drawing which shows the state which wired the enamel wire to the electric wire holding jig on a wire harness assembly work table. The 1st modification of 1st Embodiment is shown, (A) is a principal part enlarged view of a wire harness, (B) is an AA sectional view. It is drawing which shows the state which bent the wire harness in the free area | region. It is drawing which shows the 2nd modification of 1st Embodiment. The small diameter area | region of a 2nd modification is shown, (A) is sectional drawing of the enameled wire before melt | fusion, (B) is sectional drawing of the enameled wire after melt | fusion. The large diameter area | region of a 2nd modification is shown, (A) is sectional drawing of the enamel wire before melt | fusion, (B) is sectional drawing of the enamel wire after fusion. It is drawing which shows the 3rd modification of 1st Embodiment. 2A and 2B show a second embodiment of the present invention, in which FIG. 2A is a cross-sectional view of an enameled wire before applying a fusing material, and FIG. 2B is a cross-sectional view of the enameled wire in a state where the fusing material is applied and cured. . It is drawing which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Enamel wire 11 Copper wire 12 Insulating layer 13, 13 'Fusion material 20 Back door 21 Inner panel 30 Belt clamp 33 Tape clamp 40 Wire harness assembly work table 41 Electric wire holding jig W / H Wire harness W / H-1 Fixed area W / H-2 Free area

Claims (8)

A wire harness routed in an automobile,
A plurality of enameled wires are converged, and these converged enameled wires are cured in a state where the enameled wires are fixed to each other by an adhesive or a fusion material made of an insulating resin, and in the cured state, the plurality of enameled wires are cured. A wire harness for an automobile, wherein the wire has a two-dimensional shape and / or a three-dimensional shape according to a wiring shape to the automobile. The enameled wire is formed by applying one or more layers of insulating resin paint on the outer peripheral surface of a single core wire selected from copper, aluminum, silver, gold, and an alloy containing at least one of these elements. An insulating layer, and
The thickness of the hardened adhesive or fusing material fixed to the outer peripheral surface of the insulating layer of each enameled wire and bonding and fixing adjacent enameled wires to each other is changed in accordance with a wiring region. Item 2. A wire harness for an automobile according to Item 1. The insulating layer of the enameled wire is composed of one or more selected from formal, polyurethane, polyester, polyamide, polyesterimide, polyamideimide, polyimide,
2. The cured adhesive or fusing material is selected from epoxy, nylon, polyvinyl butyral, polyester, unsaturated polyester, silicone, alkyd, phenol, drill resin, and acrylic resin. Item 3. A wire harness for an automobile according to Item 2.   4. The device according to claim 1, further comprising: a free region where the enameled wires are not fixed to each other at a required position in a length direction by the adhesive or a fusion material, and the free region can be bent. 5. Wiring harness for automobiles described in 1.   An exterior protective material including a tube and a protector is not attached, and a belt clamp or a tape clamp is attached at a required position, and can be routed without contact with the vehicle body panel via these clamps. 5. The wire harness for automobiles according to any one of 4 above.   The wire harness for automobiles according to any one of claims 1 to 5, wherein the wire harness is arranged in a door panel, an instrument panel, and / or a roof panel. It is a manufacturing method of the wire harness for vehicles according to any one of claims 1 to 4,
Applying the fusion material to the outer peripheral surface of each of the plurality of enamel wires to form a self-bonding electric wire,
The plurality of self-bonding electric wires are supported by an electric wire holding jig on the wire harness assembly work table and wired along a required wiring path, and converged into a required wire harness shape,
Next, a method of manufacturing a wire harness for an automobile in which the enameled wires are heated to melt and melt the fusion material to fuse the enamel wires together, and then hardened. A method of manufacturing a wire harness for an automobile according to claim 1 or 2,
A plurality of the enameled wires are supported on the wire harness assembly worktable with an electric wire holding jig, wired along a required wiring path, and converged into a required wire harness shape,
Next, an ultraviolet curable resin as the adhesive is applied to the enameled wire,
Subsequently, the manufacturing method of the wire harness for motor vehicles which has irradiated and hardened | cured the said adhesive agent apply | coated to the enamel wire.

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