JP2020107399A - Wire harness and manufacturing method of wire harness - Google Patents

Abstract

To provide a wire harness capable of improving workability, and to provide a manufacturing method of the wire harness.SOLUTION: A wire harness 9 includes a long-sized conducting path 22, and any one of a sheet-winding braid part 28 for shielding a range from one end to the other end of the long-sized conducting path 22, a belt-winding braid part 39, and a sandwiching braid part 44. The sheet-winding braid part 28 is formed of a product obtained by rolling a sheet-like braid matched to a length of the long-sized conducting path 22 with a cross section in a roughly loop shape so as to generate a slit to be an inlet of the long-sized conducting path 22 in the side part. The belt-winding braid part 39 is formed by winding a belt-like braid matched to a length in an external surface spiral direction of the long-sized conducting path 22 around the long-sized conducting path 22. The sandwiching braid part 44 is formed of a continuous body of a part fixed by sandwiching the long-sized conducting path 22 with one or a pair of strip-like braids.SELECTED DRAWING: Figure 2

Description

The present invention relates to a wire harness having a shield function for a long conductive path and a method for manufacturing the wire harness.

For example, a wire harness arranged in an electric vehicle or a hybrid vehicle includes one or a plurality of conductive paths, a tubular outer member through which the conductive paths are inserted, and a shield member for shielding the conductive paths. It is configured with. Such a wire harness is manufactured as a long wire that is routed from the front part of the vehicle to the rear part of the vehicle under the floor of the vehicle (see Patent Document 1 below).

JP, 2010-51042, A

In the above conventional technique, a braid formed in a tubular shape is adopted as the shield member. In the manufacture of the wire harness, since the braid is tubular as described above, it is necessary to insert the conductive path into the tubular braid. However, since the wire harness is long, the conductive path also becomes long, which makes it very difficult to insert the conductive path into the braid, which is a problem. In addition, if the braid has a cylindrical shape, unless the conductive path is inserted through the braid first, there is a possibility that the processing of the end of the conductive path may be hindered.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a wire harness and a wire harness manufacturing method capable of improving workability.

The wire harness of the present invention according to claim 1, which is made to solve the above-mentioned problems, has a long conductive path formed to have a length from one end to the other end of an automobile front part and an automobile rear part, A sheet winding braid portion for shielding a range from the one end to the other end of the long conductive path, and one of a band winding braid portion, and a sandwiching braid portion, the sheet winding braid portion, the A sheet-shaped braid that matches the length of the long conductive path is formed by rounding the cross section in a substantially “” shape so that a slit serving as an inlet of the long conductive path is formed on a side portion. The striped braided portion is formed by winding a strip-shaped braid that matches the length of the outer surface spiral direction of the long conductive path around the long conductive path, and the sandwiched braided portion is the long striped braided portion. It is characterized in that it is formed by a continuous body in which a conductive path is sandwiched and fixed by one or a pair of strip-shaped braids.

According to the present invention having the characteristics of claim 1, the range from one end to the other end of the long conductive path in any one of the sheet winding braid portion, the band winding braid portion, and the sandwiching braid portion. Since it has a structure that can shield the wire, the work of inserting the conductive path into the braid unlike the conventional example is unnecessary, and it can be retrofitted, resulting in improvement of workability. You can

Incidentally, the work of the conventional example, that is, the work of inserting the conductive path in the braid means, for example, the work of inserting a long conductive path (long conductive path) having a length of about 4 m into the tubular braid. However, if the long conductive path is inserted into the same long tubular braid as it is, the work becomes difficult.First, the long tubular braid is shortened in this axial direction to reduce the total length. The work is performed such that the braid is slightly shortened, the inner diameter of the braid is expanded, the long conductive path is inserted into the braid having the expanded inner diameter, and the finally contracted braid is extended to the original length. In the conventional example, since the structure adopts the tubular braid, it can be seen that workability is extremely deteriorated. Further, among the above-mentioned work, since the work of expanding the inner diameter of the braid and the work of stretching it back to the original length and returning it are included, it is possible to cause the mesh of the braid to expand such that the shield performance is deteriorated. I know that it will end.

In contrast to the conventional example, in the present invention, when adopting the structure of the sheet winding braid part, a sheet-like braid matched to the length of the long conductive path is formed so that a slit serving as an inlet of the long conductive path is formed in the side part. Since it is formed into a round shape with a cross section of a substantially "-" shape, it can be seen that this structure eliminates the work of insertion and, as a result, the workability is remarkably improved. Further, the mesh of the braid does not spread during the work. Needless to say, these effects are the same even when the structure of the band winding braid or the sandwiching braid is adopted. In addition, if the work of inserting the long conductive path becomes unnecessary, it is considered that the wire harness can be manufactured by an automatic machine.

According to a second aspect of the present invention, in the wire harness according to the first aspect, the sheet-like braid is formed by mixing a metal element wire and a resin element wire. ..

According to the present invention having the characteristics of claim 2 as described above, since the resin-made wire is included, it is possible to easily maintain the state in which the wire is rounded in a substantially "-" shape in cross section. It is possible to contribute to improving the property.

According to a third aspect of the present invention, in the wire harness according to the first aspect, the band-shaped braid is formed by crushing a braided wire in a tubular shape so as to eliminate the tubular internal space. It is characterized by that.

According to the present invention having the features of claim 3, since the tubular braid is crushed into a band shape, a double-layered band-shaped braid is formed, and the mesh openings when viewed in the stacking direction are increased. Can be made smaller. Therefore, it can contribute to the improvement of the shield performance.

Further, in the wire harness manufacturing method of the present invention as set forth in claim 4, which is made to solve the above-mentioned problems, a long conductive path having a length from one end to the other end of the automobile is formed. Conductive path forming step to perform, and forming any one of a sheet winding braided portion, a band winding braided portion, and a sandwiched braided portion for shielding the range from the one end to the other end of the long conductive path. Manufactured including a shield step, the sheet winding braid portion, a sheet-like braid that matches the length of the long conductive path, so that the slit that becomes the inlet of the long conductive path is generated in the side part. Is formed by rounding into a substantially “” shape in cross section, and the band-wound braid portion is a strip-shaped braid matched to the length of the outer surface spiral direction of the long conductive path to the long conductive path. It is formed by wrapping it around, and the sandwiched braid portion is formed by a continuous body of a portion in which the long conductive path is sandwiched and fixed by one or a pair of strip-shaped braids.

According to the present invention having the features of claim 4, the range from one end to the other end of the long conductive path in any one of the sheet winding braid portion, the band winding braid portion, and the sandwiching braid portion. Since it is a manufacturing method that includes a step of shielding, it is not necessary to insert the conductive path into the braid as in the conventional example, and retrofitting is also possible, resulting in improvement of workability. You can

According to the present invention, there is an effect that it is possible to provide a wire harness and a wire harness manufacturing method capable of improving workability.

It is a schematic diagram which shows one Embodiment of the wire harness of this invention, (a) is a figure which shows the wiring state of a high voltage wire harness, (b) is a low voltage wire different from (a). It is a figure which shows the wiring state of a harness (Example 1). It is a figure which shows the structure of a wire harness. It is a figure which concerns on manufacture of a wire harness, and is a figure which shows the state before performing a shield process. It is a figure which shows a sheet winding braid part. It is a figure of a shield process concerning manufacture of a wire harness, (a) is a figure showing a state where a long conductive path and a sheet winding braid part were assembled, and (b) shows a state where a sheet winding braid part was fixed with tape. FIG. It is a figure which concerns on manufacture of a wire harness, (a) is a figure which shows the structure of an exterior member, (b) is a figure which shows the state which was penetrated into an exterior member and terminal-processed. It is a figure which shows the state just before wiring of a wire harness. It is a figure of other shield processes concerning manufacture of a wire harness, (a) is a figure showing the state before forming a band winding braid part, (b) is a figure showing the state after forming a band winding braid part (Example 2). It is a figure which concerns on formation of a strip-shaped braid, (a) is a figure which shows the cylindrical state before formation, (b) is a figure which shows the state after formation. It is a figure of another shield process concerning manufacture of a wire harness, and is a figure showing the state before formation of an interlocking braid part (example 3). It is a figure of the shield process from the state of FIG. 10, (a) is a figure which shows the state in the middle of formation of an interposition braid part, (b) It is a figure which shows the state after forming the interposition braid part. It is a figure of other shield processes concerning manufacture of a wire harness, and is a figure showing the state before performing a shield process (example 4). It is a figure of the shield process from the state of FIG. 12, (a) is a figure which shows the state which fixed the sheet winding braid part with the assembly tape, (b) is a figure which shows the state after carrying out an end process.

The wire harness includes a long conductive path, and one of a sheet winding braid part, a band winding braid part, and a sandwiching braid part for shielding a range from one end to the other end of the long conductive path. It is configured with. The sheet winding braid part is a sheet-shaped braid that matches the length of the long conductive path, and is rolled into a cross-section with a "-" shape so that a slit that becomes the entrance of the long conductive path is formed in the side part. Is formed. Further, the band winding braid portion is formed by winding a band-shaped braid that matches the length of the long conductive path in the outer surface spiral direction around the long conductive path. Further, the sandwiched braid portion is formed by a continuous body of a portion in which a long conductive path is sandwiched and fixed by one or a pair of strip-shaped braids.

Hereinafter, Embodiment 1 will be described with reference to the drawings. FIG. 1 is a schematic diagram showing an embodiment of the wire harness of the present invention. Further, FIG. 2 is a diagram showing the configuration of the wire harness, and FIGS. 3 to 7 are diagrams relating to the manufacture of the wire harness.

In this embodiment, the present invention is applied to a wire harness that is routed in a hybrid vehicle. Note that the vehicle is not limited to a hybrid vehicle, and may be a vehicle that uses a motor as a drive source, such as a PHV or an electric vehicle, or a general vehicle that runs only with an engine. The engine may be used only for power generation. In addition, it may be a fuel cell vehicle or an autonomous vehicle.

<About the configuration of the hybrid vehicle 1>
In FIG. 1A, reference numeral 1 indicates a hybrid vehicle. The hybrid vehicle 1 is a vehicle that mixes and drives two powers of an engine 2 and a motor unit 3, and the motor unit 3 is supplied with electric power from a battery 5 (battery pack) via an inverter unit 4. .. The engine 2, the motor unit 3, and the inverter unit 4 are mounted in the engine room 6 where front wheels and the like are present in this embodiment. Further, the battery 5 is mounted on the rear portion 7 of the vehicle having rear wheels and the like (it may be mounted at a position inside the vehicle compartment which is behind the engine room 6).

The motor unit 3 and the inverter unit 4 are connected by a high-voltage wire harness 8 (motor cable for high voltage). The battery 5 and the inverter unit 4 are also connected by the high-voltage wire harness 9. The intermediate portion 10 of the wire harness 9 is routed under the vehicle floor 11 (in the vehicle body) of the vehicle. Further, the intermediate portion 10 is arranged substantially parallel to the underfloor 11 of the vehicle. The underfloor 11 of the vehicle is a so-called panel member as well as a known body (vehicle body), and a through hole is formed at a predetermined position. The wire harness 9 is watertightly inserted in the through hole.

The wire harness 9 and the battery 5 are connected via a junction block 12 provided in the battery 5. The junction block 12 is electrically connected to an external connection means such as a shield connector 14 arranged at the harness terminal 13 on the rear end side of the wire harness 9. Further, the wire harness 9 and the inverter unit 4 are electrically connected to each other via an external connecting means such as a shield connector 14 arranged on the harness terminal 13 on the front end side.

The motor unit 3 includes a motor and a generator. Moreover, the inverter unit 4 is configured to include an inverter and a converter. The motor unit 3 is formed as a motor assembly including a shield case. The inverter unit 4 is also formed as an inverter assembly including a shield case. The battery 5 is of a Ni-MH type or a Li-ion type and is made into a module. It is also possible to use a power storage device such as a capacitor. It goes without saying that the battery 5 is not particularly limited as long as it is for a high voltage that can be used in the hybrid vehicle 1 and the electric vehicle.

In FIG. 1B, reference numeral 15 indicates a wire harness. The wire harness 15 is of low voltage (for low voltage), and electrically connects the low voltage battery 16 of the vehicle rear portion 7 of the hybrid vehicle 1 and the auxiliary device 18 (equipment) mounted on the vehicle front portion 17 thereof. Prepared to connect. The wire harness 15 is routed through the underfloor 11 of the vehicle as in the case of the wire harness 9 of FIG. 1A (an example, and may be routed through the vehicle compartment side). Reference numeral 19 in the wire harness 15 indicates a harness body. Reference numeral 20 indicates a connector.

As shown in FIGS. 1A and 1B, a high voltage wire harness 9 and a low voltage wire harness 15 are arranged in the hybrid vehicle 1. The high-voltage wire harness 9 and the low-voltage wire harness 15 are long ones. The present invention can be applied to any wire harness, but a high-voltage wire harness 9 will be described as a typical example in the following description. First, the configuration and structure of the wire harness 9 will be described.

<About the configuration of the wire harness 9>
1(a) and 2(b), a long wire harness 9 that is routed through an underfloor 11 of a vehicle is provided on a harness main body 21 and both terminals (harness terminals 13) of the harness main body 21, respectively. And the shield connector 14 to be arranged. Moreover, the wire harness 9 is configured to include a clamp C (see FIG. 2) for installing the wire harness 9 in a predetermined position, and a water blocking member (not shown) (eg, grommet).

<About the structure of the harness main body 21>
In FIG. 2, the harness main body 21 includes two long conductive paths 22 (long conductive paths), a shield member 23 for covering and shielding the conductive paths 22, and two shield members 23 covered by the shield member 23. And an exterior member 24 for accommodating and protecting the conductive path 22. The harness main body 21 having such a configuration is characterized by the configuration and structure of the shield member 23, as will be understood from the following description. Hereinafter, each of the above configurations will be described.

<About the conductive path 22>
In FIG. 3, the conductive path 22 (long conductive path) is configured to include a conductive conductor and an insulating insulator that covers the conductor. The conductive path 22 is formed in such a length that the one end 25 to the other end 26 extend over the front part 17 and the rear part 7 (see FIG. 1) of the vehicle. That is, the conductive path 22 is formed to be long. Although not shown, the conductive path 22 is formed through a conductive path forming step. In the present embodiment, the conductive path 22 has no sheath (it is an example). Since the conductive path 22 does not have a sheath therein, the conductive path 22 is lighter by that amount (the conductive path 22 is long, so that the conductive path 22 can be significantly reduced in weight as compared with one having a sheath). .. Note that the number of the conductive paths 22 is an example.

The conductor is made of copper, a copper alloy, aluminum, or an aluminum alloy and has a circular cross section. Regarding the conductor, a conductor structure in which strands are twisted together or a rod-shaped conductor structure with a circular (round) cross section (for example, a conductor structure with a single round core, in which case the conductive path itself is also rod-shaped) Whichever is applicable). An insulator made of an insulating resin material is extruded on the outer surface of the conductor as described above.

The insulator is extruded on the outer peripheral surface of the conductor using a thermoplastic resin material. The insulator is formed as a coating having a circular cross section. The insulator is formed to have a predetermined thickness. As the thermoplastic resin, various known types can be used, and are appropriately selected from polymer materials such as polyvinyl chloride resin, polyethylene resin and polypropylene resin.

<About the shield member 23>
In FIG. 2, the shield member 23 covers the two conductive paths 22 from the one end 25 to the other end 26 (see FIG. 3), and the braid 27 is adopted to exert the shield function. Specifically, the sheet winding braid portion 28 including the braid 27 is adopted as the shield member 23. As will be described later, the band winding braid portion 39 of the second embodiment (see FIG. 8) and the sandwich braid portion 44 of the third embodiment (see FIG. 11) are also used as the shield member 23. The shield member 23 corresponds to any one of the sheet winding braid portion 28, the band winding braid portion 39, and the sandwiching braid portion 44. In the first embodiment, the sheet winding braid portion 28 is adopted. When the shield member 23 covers the entire outer peripheral surface from the one end 25 to the other end 26 of the two conductive paths 22, the shield member 23 is characterized in that it does not require insertion work of the two conductive paths 22. ..

<About the sheet winding braid part 28>
In FIG. 2, the sheet winding braid portion 28, which is the shield member 23, is formed through the shield process shown in FIGS. 3 to 5. The shield process will be described below.

In the shielding step in FIG. 3, first, a sheet-like braid 27 is formed to match the length (for example, about 4 m) from one end 25 to the other end 26 of the two conductive paths 22 (long conductive paths), and The work of processing the sheet-like braid 27 into the braid portion main body 29 having the shape shown in FIG. 4 is performed (this is merely an example. The shape of the braid portion main body 29 can be obtained without processing the braid portion main body 29 from the beginning. It may be). In FIGS. 3 and 4, the braid 27 is formed by braiding strands in a net shape. Further, the braid 27 is formed such that the metal wire 30 and the resin wire 31 are mixed. The reference numeral 32 in the braid 27 indicates a pick, and the pick 32 is composed of, for example, four metal wires 30 and one resin wire 31 (the number is It shall be an example). The number of strands is called the possession number, and the resin-made strands 31 are adopted for one or a plurality of the possessed numbers (or, for each pick 32, the metal-made strands 30 and the resin-made strands). It may be adopted such that it is divided into lines 31). The metal wire 30 and the resin wire 31 have the required thicknesses (they need not have the same thickness). The metal wire 30 is made of a metal material such as Cu or Al. Further, as the resin-made strand 31, a wide variety of resin materials such as PP, PA, and PET are adopted. The adoption of the resin wire 31 is effective for maintaining the shape of the braid part main body 29 (compared to the metal wire 30 alone, it is more effective for maintaining the "-" shape described later. Is).

3 to 5, the braid part main body 29 has a sheet-shaped braid 27 that is matched to the length of the two conductive paths 22 (long conductive paths), and has a slit 33 serving as an inlet of the conductive path 22 on a side portion. As shown in FIG. 34, it is formed into a rounded shape having a substantially “” shape in cross section. Then, when the formation of the braid part main body 29 rounded into a substantially “” shape in cross section is completed, the work of inserting the two conductive paths 22 through the slits 33 is performed. As a result, the two conductive paths 22 are covered from the one end 25 to the other end 26 in a state in which the braid part main body 29 is wound. Then, when the braid part main body 29 is finally fixed with the tape 35, a series of operations in the shield process is completed. That is, the sheet winding braid portion 28 is formed as shown in FIG.

<About the exterior member 24>
2 and 6A, the exterior member 24 is formed by molding a resin having an insulating property into a single straight tubular body shape (it is straight before use). Further, the exterior member 24 is formed in a long shape having a circular cross section so that the two conductive paths 22 (long conductive paths) can be accommodated (the cross sectional shape is an example, for example, a cross section It may be oval, elliptical, rectangular, or the like). Such an exterior member 24 has a flexible tube portion 36 having flexibility and a straight tube portion 37 as a portion for arranging the conductive path 22 in a straight line (this configuration is an example, for example, all can be used). It may be the flexible tube portion 36). The flexible tube portion 36 and the straight tube portion 37 are resin-molded as one integral body so that the entire flexible tube portion 36 is linear without bending the flexible tube portion 36. The flexible tube portion 36 and the straight tube portion 37 are formed in the illustrated shape such that they are alternately continuous in the tube axis CL direction.

The flexible tube portion 36 and the straight tube portion 37 may be bent at a desired angle according to the shape of the underfloor 11 of the vehicle (see FIG. 1) or the shape of the vehicle attachment target 38 when the wire harness 9 is routed. Is formed so that The flexible tube portion 36 can be bent to have a bent shape, and can also be returned to the original straight shape. The flexible tube portion 36 is formed in a bellows tube shape in the present embodiment (an example, and the shape is not particularly limited). Specifically, it has a bellows concave portion and a bellows convex portion in the circumferential direction, and the bellows concave portion and the bellows convex portion are formed in a shape alternately continuous in the tube axis CL direction.

The exterior member 24 is formed in a shape in which the portion where the flexible tube portion 36 is disposed becomes a corrugated tube. In other words, the corrugated tube is partially formed in the shape. Since the exterior member 24 has the corrugated tube portion as described above, it can be referred to as a "corrugated tube" or a "partially formed corrugated tube".

The exterior member 24 is formed in a shape without slits (without abdomen division) along the tube axis CL direction. The reason why the slits are not provided is that moisture is prevented from entering the exterior member 24 and the waterproof property is improved. Further, for example, there is a point that the conductive path 22 (shield member 23) does not protrude in the bent portion. Furthermore, it is possible to increase the rigidity of the exterior member 24 itself.

The straight tube portion 37 is formed as a portion that regulates bending (a portion that regulates bending). Further, the straight pipe portion 37 is also formed as a mounting portion for a clamp C (see FIG. 2) which is a retrofit component. In addition, since the straight pipe portion 37 has a straight pipe shape as shown in the drawing, it can be called a “straight pipe portion”. In addition, since it does not bend, it can be called “non-flexible tube portion”. The straight tube portion 37 is formed in a more rigid portion than the flexible tube portion 36. The straight pipe portion 37 is also formed according to the shape of the vehicle underfloor 11 (see FIG. 1) and the shape of the vehicle attachment target 38.

<About shield connector 14>
2 and 6B, the shield connector 14 is provided as an external connection means provided at both terminals of the wire harness 9. A well-known one is adopted as the shield connector 14. The conductive path 22 (long conductive path) and the shield member 23 are electrically connected to such a shield connector 14, respectively.

<Manufacturing of wire harness 9-route routing>
In the above structure and structure, the wire harness 9 is manufactured as follows. That is, the wire harness 9 has the two conductive paths 22 (see FIG. 5) covered with the shield member 23 (sheet winding braid portion 28) from one end opening to the other end opening of the exterior member 24 as shown in FIG. It is manufactured by inserting it. Further, it is manufactured by attaching a clamp C (see FIG. 2), a grommet (not shown), a boot or the like to a predetermined position on the outer surface of the exterior member 24. Further, it is manufactured by providing the shield connector 14 at each end portion of the conductive path 22 and the shield member 23 (sheet winding braid portion 28).

After being manufactured as described above, the flexible tube portion 36 is bent so as to be folded at a predetermined position, and the bending state is maintained, whereby the packing is completed (stored in a box). Since the flexible tube portion 36 is bent, the packaged state becomes compact and the compact packaged state is transported to the vehicle assembly site.

At the vehicle assembly site, it is taken out of the box. After being taken out from the container, the flexible tube portion 36 can be formed into a desired bent shape as shown in FIG. Then, the long straight pipe portion 37 corresponding to the underfloor 11 of the vehicle is attached to the vehicle (see FIG. 2 ). After fixing the long straight pipe portion 37, the remaining portion is also fixed at a predetermined position of the vehicle attachment target 38. With the above, a series of work related to the route arrangement of the wire harness 9 is completed. The wire harness 9 is in a state of being routed along a desired route as shown in FIG.

<About the effect of the wire harness 9>
As described above with reference to FIGS. 1 to 7, according to the wire harness 9 of the embodiment of the present invention, the conductive path 22 (long length) is formed in the sheet winding and braiding portion 28 which is the shield member 23. Since the structure has a structure in which the range from one end 25 to the other end 26 of the conductive path is shielded, there is no need to insert the conductive path into the braid as in the conventional example, and the sheet winding braid portion is not required. In the case of 28, for example, post-mounting after terminal connection is possible, and as a result, workability can be improved. Therefore, there is an effect that it is possible to provide the wire harness 9 capable of improving workability and the manufacturing method thereof.

Although the shield member 23 is the sheet winding braid portion 28 in the first embodiment, the present invention is not limited to this. The band winding braid portion 39 (see FIG. 8) of the second embodiment and the sandwiching braid portion 44 of the third embodiment (see FIG. 11)).

The second embodiment will be described below with reference to the drawings. FIG. 2 is a diagram showing the configuration of the wire harness. Further, FIG. 8 is a view of another shield process for manufacturing the wire harness, and FIG. 9 is a view for forming a band-shaped braid. In addition, the same reference numerals are basically attached to the same constituent members as those in the first embodiment, and detailed description thereof will be omitted.

<About the band winding braid part 39>
In FIG. 2, the band winding braid portion 39, which is the shield member 23, constitutes the wire harness 9. Such a band winding braided portion 39 is formed through a shield process described below.

In FIG. 8A, in the shield step, first, an operation of preparing two conductive paths 22 (long conductive paths) and a tape 40 made of a band-shaped braid 27 is performed. The tape 40 is formed by winding a band-shaped braid 27 having a predetermined width according to the length of the conductive path 22 in the spiral direction on the outer surface. In addition, the tape 40 is formed by providing an adhesive material on one surface of the band-shaped braid 27 (which is naturally good without the adhesive material). As the configuration of the strip-shaped braid 27, either the same configuration as that of the first embodiment or the configuration of only the metal element wire 30 (see FIG. 9) is adopted. The band-shaped braid 27 is not limited to a single piece, but as shown in FIG. 9A, a tubular braid 41 in which a wire is braided in a tubular shape is crushed so that the tubular internal space 42 disappears. It may be formed into a thing. Further, the tubular braid 41 may be pulled in the directions of the upper and lower arrows in the drawing so as to reduce the mesh 43.

In FIG. 8B, next, in the shield step, the tape 40 is wrapped around the two conductive paths 22 by, for example, wrap winding. In this embodiment, the tape 40 is wound by an automatic machine. It is not always necessary to wind the braids 27 while wrapping them, but it is preferable to wind the braids 27 in consideration of securing the shield performance. When the winding of the tape 40 is completed, a series of operations in the shield process is completed. That is, the band winding braid portion 39 is formed as shown in FIG. Of course, when the shield member 23 becomes the band winding braided portion 39, the same effect as that of the first embodiment is obtained.

The third embodiment will be described below with reference to the drawings. FIG. 2 is a diagram showing the configuration of the wire harness. Further, FIG. 10 is a diagram of another shield process for manufacturing the wire harness, and FIG. 11 is a diagram of the shield process from the state of FIG. In addition, the same reference numerals are basically attached to the same structural members as those in the first and second embodiments, and detailed description thereof will be omitted.

<Regarding the sandwiched braid part 44>
In FIG. 2, the sandwiched braid portion 44, which is the shield member 23, constitutes the wire harness 9. Such a sandwiched braided portion 44 is formed through a shield process described below.

In the shielding step in FIG. 10, first, two conductive paths 22 (long conductive paths) are prepared, and a work of forming a plurality of strip-shaped braids 27 is performed. The strip-shaped braid 27 is formed in such a width that the two conductive paths 22 can be sandwiched therebetween. The number of strip-shaped braids 27 is prepared so that the length from the one end 25 to the other end 26 of the conductive path 22 (for example, about 4 m) can be secured. As the configuration of the strip-shaped braid 27, either the same configuration as that of the first embodiment or the configuration including only the metal wire 30 (see FIG. 4) is adopted. In FIG. 11A, next, in the shield step, a pair of strip-shaped braids 27 are sandwiched between the two conductive paths 22 from above and below, and both widthwise ends are fixed by welding 46, for example. Work is performed to form the sandwiched portion 45 as shown. Note that fixing by welding 46 is an example, and the tape structure as in the second embodiment may be adopted. That is, it is only necessary that they can be bonded.

When the sandwiched portion 45 is formed and the formation of the continuous body of the sandwiched portion 45 is completed, a series of operations of the shield process is completed. That is, the sandwiched braid portion 44 is formed as shown in FIG. Even when the shield member 23 becomes the sandwiched braided portion 44, the same effects as those of the first embodiment are of course obtained.

Although the third embodiment has a structure in which a pair of strip-shaped braids 27 are sandwiched and fixed from the vertical direction, one strip-shaped braid 27 is bent and sandwiched in a U-shape, and the ends are fixed. Such a structure may be used.

Embodiment 4 will be described below with reference to the drawings. FIG. 12 is a diagram of another shield process for manufacturing the wire harness. Further, FIG. 13 is a diagram of a shield process from the state of FIG. In addition, the same reference numerals are basically attached to the same constituent members as those in the first to third embodiments, and detailed description thereof will be omitted.

<About the sheet winding braid part 28>
12 and 13, the fourth embodiment is a modification of the first embodiment. That is, in Example 4, first, the two conductive paths 22 (long conductive paths) and the exterior member 24 are formed as shown in FIG. 12A, and then the exterior member 24 is formed as shown in FIG. A shield step in which the two conductive paths 22 are inserted from the one end opening to the other end opening, and finally the work of forming the sheet winding braid portion 28 on the outer side of the exterior member 24 is performed as shown in FIG. 13A. Is adopted. Then, when the shield connector 14 is provided at the terminal as shown in FIG. 13B, the manufacturing of the wire harness 9 is completed. Even in the case of the fourth embodiment, the workability can be improved as compared with the conventional example. It is assumed that the second and third embodiments can be modified in the same manner as above.

In addition, it goes without saying that the present invention can be variously modified and implemented without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1... Hybrid vehicle, 2... Engine, 3... Motor unit, 4... Inverter unit, 5... Battery, 6... Engine room, 7... Automobile rear part, 8, 9... Wire harness, 10... Intermediate part, 11... Vehicle floor, 12... Junction block, 13... Harness terminal, 14... Shield connector, 15... Wire harness, 16... Low voltage battery, 17... Vehicle front part, 18... Auxiliary device, 19... Harness body, 20... Connector, 21... Harness body, 22... Conductive path (long conductive path), 23... Shield member, 24... Exterior member, 25... One end, 26... Other end, 27... Braid, 28... Sheet winding braid part, 29... Braid part body, 30... Metal Made of wire, 31... Resin wire, 32... Pick, 33... Slit, 34... Side, 35... Tape, 36... Flexible tube, 37... Straight tube, 38... Vehicle installation target, 39 ... band winding braided portion, 40... tape, 41... tubular braided, 42... internal space, 43... mesh, 44... sandwiched braided portion, 45... sandwiched portion, 46... welding, C... clamp, CL... pipe shaft

Claims (4)

A long conductive path formed to have a length from one end to the other end of the automobile front and rear,
A sheet winding braided portion for shielding a range from the one end to the other end of the long conductive path, and a band winding braided portion, and a sandwiched braided portion,
The sheet winding braid portion is a sheet-shaped braid that is matched to the length of the long conductive path, and has a cross section of a substantially "no" shape so that a slit serving as an inlet of the long conductive path is formed on a side portion. It is formed by rolling
The band winding braid portion is formed by winding a band-shaped braid that matches the length of the outer surface spiral direction of the long conductive path around the long conductive path.
The said interposition braid part is formed by the continuous body of the part which pinched|interposed and fixed the said long electroconductive path by one or a pair of strip-shaped braids. The wire harness according to claim 1,
The wire harness, wherein the sheet-like braid is formed by mixing metal wires and resin wires. The wire harness according to claim 1,
The wire harness, wherein the band-shaped braid is formed by braiding a wire in a tubular shape so as to eliminate the tubular internal space. A conductive path forming step of forming a long conductive path having a length such that one end to the other end extends over the front part and the rear part of the vehicle.
Manufactured including a shield step of forming any one of a sheet winding braid portion, a band winding braid portion, and a sandwiching braid portion for shielding a range from the one end to the other end of the long conductive path. Is
The sheet winding braid portion is a sheet-shaped braid that is matched to the length of the long conductive path, and has a cross section of a substantially "no" shape so that a slit serving as an inlet of the long conductive path is formed on a side portion. It is formed by rolling
The band winding braid portion is formed by winding a band-shaped braid that matches the length of the outer surface spiral direction of the long conductive path around the long conductive path.
The wire-braid manufacturing method, wherein the sandwiched braided portion is formed by a continuous body of portions in which the long conductive path is sandwiched and fixed by one or a pair of strip-shaped braids.

Images