JP5323755B2 - Sheath tube structure and wire harness - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheath tube structure and a wiring harness capable of keeping a stable fixing shape and enabled in proper fixing even if a bendable sheath tube is used. <P>SOLUTION: A plurality of sheath tubes which high-voltage shield electric wires 270, 270A are penetrate are arranged adjacent with one another, and at least out of the plurality of sheath tubes arranged in parallel with one another is constituted of a sheath tube of higher hardness than other sheath tubes arranged in parallel with one another. For example, the sheath tubes are constituted of long bellows tubes 210, 220 which are formed in bendable bellows shapes, and the sheath tube of higher hardness is constituted of the bellows sheath tube 210 of higher hardness of which at least the bent portion where the bellows tube is bent has higher hardness than the other bellows tubes 220 arranged in parallel with one another. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a sheath tube structure that covers and protects a conductive wire, and a wire harness using the sheath tube structure, and has, for example, a shield function that prevents electromagnetic noise due to a high-frequency current of the conductive wire from adversely affecting the surroundings. The present invention relates to a sheath tube structure and a wire harness using the sheath tube structure.

  In general, it is known that an electromagnetic noise due to a high-frequency current is generated in an inverter device of an electric vehicle or a conductive wire that supplies a motor driving current. In order to shield this electromagnetic noise, various shield members have been conventionally proposed. For example, Patent Document 1 proposes a conductive path that shields electromagnetic noise in a state in which a conductive wire that is exposed outside the vehicle body is routed through a metal pipe and protected.

  However, such a configuration using a metal pipe is long and heavy, and has low flexibility, so that handling is poor. Therefore, when assembling to a vehicle or the like, it can be applied only to the shape of the mounting portion of a predetermined vehicle type, and cannot be applied to other vehicles having slightly different mounting shapes.

  For this reason, instead of metal pipes, recently, a shield member has been proposed that employs a lightweight bellows tube that is flexible and suitable for handling, and allows a conductive wire to be inserted through the bellows tube. (See Patent Document 2).

The shield member can be freely deformed because the bellows tube is flexible, and the long bellows tube can be formed into a desired shape suitable for a site to be attached to a vehicle or the like. For this reason, it was supposed that it became possible to attach in common to vehicle types with different mounting shapes.
However, while having flexibility, the formed shape cannot be maintained, so that there is a problem that an auxiliary member such as a protector is required for attachment.

  In addition, the configuration in which a plurality of conductive wires are inserted into one bellows tube makes it impossible to smoothly insert the conductive wires. As a result, it takes time to install the conductive wires, resulting in poor workability. He also had problems.

JP 2004-171952 A JP 2009-123461 A

  Therefore, the present invention provides a sheath tube structure capable of maintaining a stable mounting shape even when a bendable sheath tube is used and realizing proper mounting, and a wire harness using the sheath tube structure. Objective.

  According to the present invention, a plurality of sheath tubes that allow the insertion of conductive wires are arranged adjacent to each other in parallel, and at least one of the plurality of sheath tubes arranged in parallel is provided with a higher hardness than the other sheath tubes arranged in parallel. It is a sheath tube structure constituted by a hardness sheath tube.

As an aspect of the present invention, the sheath tube is constituted by a long bellows tube formed in a bendable bellows shape, and the high-hardness sheath tube has at least a bent portion obtained by bending the bellows tube. It can be composed of a high-hardness bellows tube which is a high-hardness bent portion having a higher hardness than other bellows tubes.
As an aspect of the present invention, the high-hardness bent portion can be formed by crushing the bellows shape at the bent portion.

  Further, as an aspect of the present invention, a connection portion is provided that includes screwing means for screwing and connecting the tube end portions of the bellows tube to the bellows tube, and the high-hardness bent portion is screwed and connected by the screwing means. It can be configured by bending.

As an aspect of the present invention, the screwing means can be configured in a spiral bellows shape in which the bellows shape of the bellows tube is a spiral shape in the longitudinal direction.
Further, as an aspect of the present invention, a shield part for shielding electromagnetic noise can be provided in a portion where shielding performance of electromagnetic noise is required in the sheath tube.

Further, the present invention provides a connector for at least one end of an exposed portion of the conductive wire that is exposed from both ends of the bellows tube for each sheath tube in the sheath tube structure. It is the wire harness provided with.
Further, as an aspect of the present invention, the exposed portion can be configured to include electromagnetic noise shielding means for covering the outer periphery thereof.

  Furthermore, this invention is a wire harness composed of a low-voltage conductive wire and a high-voltage conductive wire, and the high-voltage conductive wires are inserted one by one into each sheath tube in the above-described sheath tube structure. The insertion of a plurality of the low-voltage conductive wires is allowed, and at least one of the sheath tubes through which the high-voltage conductive wires are inserted is constituted by a high hardness sheath tube.

As an aspect of the present invention, the high-voltage conductive wire is configured by a shield conductive wire including a first shield member for shielding electromagnetic noise, and further includes a second shield member that covers an outer periphery of the shield conductive wire. Can do.
Moreover, as an aspect of the present invention, a flexible cover body can be provided outside the exposed portion of the high-voltage conductive wire exposed from both ends of the sheath tube.

The high-hardness sheath tube can be composed of, for example, a metal tube, a high-hardness bellows tube to be described later, and the material and shape are not particularly limited as long as the tube can protect the conductive wire.
In addition, the high-hardness bellows tube is a hardened part of the long bellows tube, or a necessary part of the entire bellows tube, and has a higher hardness than other bellows tubes to the extent that it can be fixed and maintained in shape. Can be a tube.

Furthermore, when the high-hardness bellows tube is, for example, a bellows tube composed of a bent portion and a straight portion, only the bent portion has a high hardness, a whole bellows tube having a high hardness, a bent portion Only the whole and a part of the straight part can be a highly rigid bellows tube.
The bent portion may include not only a portion where the bellows-shaped bellows tube is bent but also a portion in a predetermined range before and after connecting to the bent portion.

  The shield member is a braid made of a copper or copper alloy tin-plated (hereinafter referred to as Sn plating) or a conductor obtained by applying a nickel plating (hereinafter referred to as Ni plating) to copper or copper alloy. It can be a braid.

  The flexible cover body may be a resin cover such as a resin corrugated pipe (hereinafter referred to as resin COT) or a rubber cover.

  According to the present invention, there is provided a sheath tube structure capable of maintaining a stable mounting shape even when a bendable sheath tube structure is used and realizing proper attachment, and a wire harness using the sheath tube structure. be able to.

(A) is a side view showing an example of a high hardness bellows tube, (B) is a side view showing an example of a normal bellows tube. (A) is a side view which shows the attachment state of a bellows tube, (B) is a top view which shows the attachment state of the bellows tube in parallel. (A) is a longitudinal cross-sectional view of a bellows tube, (B) is a principal part longitudinal cross-sectional view which shows the attachment state of the paralleled bellows tube which penetrated the conductive wire. (A) is a partial vertical cross-sectional view of the bellows tube, (B) is an enlarged vertical cross-sectional view of a main portion showing an example of crushing the bellows tube, and (C) is a side view of a main portion showing an example of a high-hardness bent portion of the bellows tube. FIG. 4D is a side view of the main part showing another example of the high-hardness bent portion of the bellows tube. (A) is a side view showing a helical bellows tube, (B) is a longitudinal sectional view of a main portion showing a connection state of the helical bellows tube, and (C) is a main part showing an example of a high-hardness bent portion in the helical bellows tube. (D) is a main part side view showing another example of a high-hardness bent portion in a helical bellows tube, and (E) is a state in which left and right helical bellows tubes are screwed and connected by a joint screw tube. FIG. Explanatory drawing which shows the attachment state of the wire harness of Embodiment 1. FIG. Explanatory drawing which shows the attachment state of the wire harness of Embodiment 2. FIG. Explanatory drawing which shows the attachment state of the wire harness of Embodiment 3. FIG. Explanatory drawing which shows the attachment state of the wire harness of Embodiment 4. FIG. Explanatory drawing which shows the attachment state of the wire harness of Embodiment 5. FIG. Explanatory drawing which shows the attachment state of the wire harness of Embodiment 6. FIG. Explanatory drawing which shows the attachment state of the wire harness of Embodiment 7. FIG. Explanatory drawing which shows the attachment state of the wire harness of Embodiment 8. FIG. Explanatory drawing which shows the attachment state of the wire harness of Embodiment 9. FIG. The description about the metal tube in the wire harness of Embodiment 9. FIG. The chart which compares and shows the result of the shielding performance according to four types of bellows tubes. The top view which shows the packing state of a wire harness.

An embodiment of the present invention will be described below with reference to the drawings.
A case will be described in which the sheath tube structure of the present embodiment is applied to a vehicle, particularly a vehicle in which a wire harness for passing a large current such as an electric vehicle is routed.

The said sheath tube structure can be comprised by a sheath tube structure as shown in FIG.1 and FIG.2.
Specifically, the sheath tube structure 100 includes a long bellows tube formed in a bendable bellows shape and arranged side by side adjacent to each other, and at least of the two bellows tubes 210 and 220 arranged in parallel. One is composed of a high-hardness bellows tube 210 having a higher hardness than the other bellows tubes 220 arranged in parallel.

  FIG. 1A shows a high-hardness bellows tube 210, and this high-hardness bellows tube 210 is formed into a conforming shape 230 that is attached according to the uneven shape at a predetermined attachment position under the vehicle floor.

  The high-hardness bellows tube 210 is made of a flexible resin-made bellows tube, and may be made with a higher hardness than the normal hardness bellows tube 220, or may be partially hardened. The hardness may be increased. Specifically, the resin bellows tube may be made of a resin having a hardness higher than that of the normal hardness bellows tube 220, or the thickness of the bellows tube is changed without changing the outer diameter of the resin bellows tube. You may comprise combining a bellows tube.

  Further, as another example, the high-hardness bellows tube 210 may be configured by refining the material hardness of a metal sheath tube (a bellows tube, a spiral bellows tube, a straight tube) and combining metal tubes having different hardnesses. Alternatively, the outer diameter of the metal sheath tube may be changed and the metal tube having a higher hardness by changing the wall thickness may be combined. By configuring the high-hardness bellows tube 210 in this manner, the high-hardness bellows tube 210 and the normal-hardness bellows tube 220 can run in parallel.

  For example, as an example of increasing the hardness of the entire bellows tube, forming a flexible bellows tube using a resin material and applying a shield layer such as an aluminum corrugate to enhance the electromagnetic noise shielding performance on the outer surface Can do.

  Further, as an example of increasing the hardness of the entire part by increasing the hardness partially, a high-hardness bent portion 240 (described later) in which the hardness of each bent portion where the high-hardness bellows tube 210 is bent is higher than the hardness of other portions is formed. be able to. At this time, the high hardness portion is increased, and a more stable conforming shape 230 is obtained.

  Further, when forming the high hardness bent portion 240, only the high hardness bent portion 240 is increased in hardness, and the other portions are configured with normal hardness. In addition, the high hardness bending part 240 which further increased the bending part from the state which raised the whole hardness can also be comprised.

  Then, by forming the high hardness bent portion 240, it is possible to form the bent portion with one bent and the other bellows tube extending in different directions being firmly fixed in a desired direction. Thereby, the rigidity of an axial direction can be provided to the high hardness bellows tube 210. For this reason, even if the high-hardness bellows tube 210 is long, the overall shape is stable, and the overall shape is stabilized in proportion to the number of formed hardened portions.

  In FIG. 1A, an example is shown in which the high-hardness bellows tube 210 is formed with two gently inclined bent portions on the front side and two L-shaped bent portions at substantially right angles on the rear side. Yes. Further, connectors 250 are attached to both ends of the bellows tube.

A high-hardness bellows tube 210 formed into a conforming shape 230 by bending a long bellows tube into a predetermined shape is a standard mounting shape of the normal-hardness bellows tube 220, and along the shape of the high-hardness bellows tube 210, FIG. A normal hardness bellows tube 220 having flexibility shown in 1 (B) is attached along the same shape.
The normal hardness bellows tube 220 is formed of a flexible bellows tube using a resin material. The outer surface can be formed by applying a thin shield layer such as an aluminum corrugate.

  Since the normal hardness bellows tube 220 does not require a high hardness portion, the hardness is low and flexibility can be obtained over the entire length. For this reason, it can be easily accommodated by bending so as to match the conforming shape 230 of the high-hardness bellows tube 210 whose shape is determined. Thereby, it is only necessary to increase the hardness of only one of the bellows tubes arranged in parallel, and the increase in hardness of the other bellows tube can be omitted.

  In addition, as shown in FIG. 2, when the bellows tubes are connected in parallel, the two bellows tubes 210 and 220 arranged on the left and right may be wound and fixed with a tape 260 or the like at regular intervals in the axial direction. Thereby, the sheath tube structure 100 formed by attaching both in parallel can be formed.

  FIG. 3 shows an example of attachment of the sheath tube structure 100. As shown in FIG. 3 (A), the high hardness bellows tube 210 or the normal hardness bellows tube 220 is shown in FIG. 3 (B). In addition, one high-voltage shielded electric wire 270 is inserted through each.

  In this case, since the single high-voltage shielded electric wire 270 is inserted through the single bellows tube, the insertion operation of the high-voltage shielded electric wire 270 becomes smooth and the high-voltage shielded electric wire 270 can be easily attached.

  Then, as shown in FIG. 3B, the two bellows tubes 210 and 220 arranged on the left and right are attached to the mounting surface 290 by, for example, a U-shaped mounting bracket 280. At this time, as shown in FIG. 2, the mounting bracket 280 may be attached at regular intervals over the entire length of the bellows tube.

  As an example of reliably increasing the hardness of the portion of the high-hardness bellows tube 210, as shown in FIG. 4A, independent crests 211 and troughs 212 are alternately formed in the axial direction of the tube using a resin material. After molding into a plurality of bellows tubes, the hardness can be reliably increased by applying a shield layer such as an aluminum corrugate or metal plating to the outer surface.

  In addition to this, as shown in FIG. 4B, the portion to be hardened which becomes the high-hardness bellows tube 210 is compressed and tightened so as to be wrapped from the outer periphery by the annular fastener 400, and the peak portion of the bellows tube 210 211 can be crushed to increase the hardness locally. The pressurizing means using the annular fastener 400 can be configured, for example, by providing a split cylinder and tightening and pressurizing it from the outside with a screw tightening portion (not shown).

  As a result, the bellows-like space that allows the original flexibility of the bellows tube is crushed and eliminated, and the crushed portion becomes thick and the strength increases. As a result, the portion to which the annular fastener 400 is attached can be increased in hardness.

  Further, as shown in FIG. 4C, when the annular fastener 400 is attached in the vicinity of the high-hardness bent portion 240, the high-hardness bent portion 240 can be formed by increasing the hardness of the bent portion.

  Furthermore, as shown in FIG. 4D, if the entire bent portion of the bellows tube is crushed by tightening the entire L-shaped bent portion with the split annular fastener 410, the entire bent portion becomes high. The hardened high hardness bent portion 240 can be formed.

  Further, the end portions of the bellows tube may be screwed to the high-hardness bellows tube 210. As screwing means at this time, an outer peripheral small-diameter spiral portion formed at the tube end portion of one bellows tube is screwed into an inner peripheral large-diameter spiral portion formed at the tube end portion of the other bellows tube. Thus, the bellows tubes on both sides can be directly connected without requiring a new connecting member. The portions connected in this way are doubled in thickness and can be increased in hardness.

  FIG. 5 employs a helical bellows tube 500 instead of the bellows tube. As shown in FIG. 5A, the helical bellows tube 500 is configured in a spiral bellows shape in which the bellows shape of the bellows tube is a spiral shape in the longitudinal direction. Accordingly, the pipe end portion has a screwing function in which the inner peripheral surface is a female screw and the outer peripheral surface is a male screw.

  For example, as shown in FIG. 5B, the tube end of one spiral bellows tube 510 is slightly smaller in diameter for the male screw, and the tube end of the other spiral bellows tube 520 is slightly larger in diameter for the male screw. In a state where the tube ends are abutted with each other, the tube end of one spiral bellows tube 510 can be screwed into the tube end of the other spiral bellows tube 520 to be screwed together.

  Further, as shown in FIG. 5C, if one helical bellows tube 510 and the other helical bellows tube 520 are screwed together and then bent, the bent portion is increased in hardness and a high hardness bent portion. 240 can be formed. Also in this case, it can connect, without requiring a new connection member.

  In addition, as shown in FIG. 5 (D), an L-shaped cylindrical body 530 having a female thread that can be spirally connected to the end of the pipe is provided, and tubes on both sides of the horizontal and vertical directions of the L-shaped cylindrical body 530 are provided. It is also possible to screw and connect the helical bellows tube 510 to the end portion. Further, the L-shaped cylinder 530 is not limited thereto, and may be an L-shaped cover in which the entire bent portion is divided into two in a semicircular cross section. Also in this case, it is possible to form the high-hardness bent portion 240 in which the entire bent portion has a higher hardness.

Further, as shown in FIG. 5E, a relay spiral tube 540 having a female screw that is screwed into the spiral bellows tube 510 is provided at both tube end portions. The relay spiral tube 540 is configured with a reverse screw having one spiral direction opposite to the other. Then, in a state where each spiral bellows tube 510 is screwed from the opening at both ends of the relay spiral tube 540, the right and left spiral bellows tubes 510 are efficiently screwed together by rotating the relay spiral tube 540 in one rotation direction. It is also possible to configure it.
Further, instead of the bellows tubes 210 and 220 and the spiral bellows tube 510, the sheath tube structure 100 may be composed of a metal pipe made of aluminum or the like and having a smooth surface.

(Embodiment 1)
FIG. 6 shows the wire harness 600 according to the first embodiment using the sheath tube structure 100 including the bellows tubes 210 and 220. In this wire harness 600, for example, one high-voltage shielded electric wire 270 that conducts high voltage is inserted into each of a high-hardness bellows tube 210 and a normal-hardness bellows tube 220 formed in a spiral bellows shape, and a connector is connected to the end of the wire harness 600. 250 is connected to one end side of two high-voltage shielded electric wires 270.

  Furthermore, the wire harness 600 is appropriately bundled at a predetermined interval in the length direction with a band 350 or a tape in a state where two of the high-hardness bellows tube 210 and the normal-hardness bellows tube 220 are arranged in parallel.

Furthermore, the wire harness 600 includes a plurality of low-voltage conductive wires 610 (for example, 12V type) that do not generate noise with respect to the two bellows tubes 210 and 220 (two high-voltage shielded wires 270) arranged in parallel. ) Are incidentally arranged in parallel.
Note that the plurality of low-voltage conductive wires 610 are bundled with a band 350 or a tape or the like in a collective wiring state.

  Specifically, the wire harness 600 has a configuration in which low-voltage conductive wires 610 are arranged in parallel in an intermediate portion excluding both end portions in the length direction of the two bellows tubes 210 and 220. The two bellows tubes 210 and 220 and the low-voltage conductive wire 610 are bundled together by a clamp 620, a band 350, and the like.

  In this connection, a shield shell may be arranged (not shown) in order to reliably prevent shield leakage at the connection portion. The shield shell is disposed so as to cover the outer periphery of the connector 250 in a manner straddling the connection portion between the high hardness bellows tube 210 and the normal hardness bellows tube 220 and the connector 250. Thereby, the shield property of the connector part vicinity can be improved.

  Specifically, the shield shell is, for example, a set of two metal parts having a semicircular cross section. When the vicinity of the connector portion is closed by the shield shell, the shield shell is pressed and pressed near the end portion of the bellows tube. It can be connected stably by caulking. In this case, since the peak portion is deformed and fixed when tightened, the shielding performance in the vicinity of the connector portion can be easily improved.

  Hereinafter, the second to ninth embodiments other than the above-described first embodiment will be described, but the same components as those of the first embodiment will be denoted by the same reference numerals and the description thereof will be omitted.

(Embodiment 2)
FIG. 7 shows a wire harness 700 according to the second embodiment using the sheath tube structure 100 including the bellows tubes 210 and 220. The wire harness 700 is a braided wire that is inserted from one high-voltage sheathed shielded electric wire 270A into each of a high-hardness bellows tube 210 and a normal-hardness bellows tube 220 formed in a spiral bellows shape, and is exposed from the end portion thereof. This is connected to the connector 250 through the exposed portion 730.

  Specifically, the high-voltage shielded electric wire 270 originally has an inner shield portion (resin-coated portion) and the braided portion with respect to the core electric wire (central electric wire) arranged in the central portion, like the high-voltage shielded electric wire 270 of the first embodiment. Each of the wire 730 and the outer shield part is configured to cover the outer radial direction in this order (not shown), but the high-voltage sheathless shielded electric wire 270A of the second embodiment is the outermost of the high-voltage shielded electric wire 270 of the first embodiment. The outer shield part corresponding to the outer layer is removed, and the braided wire 730 is a sheathless shielded electric wire that is exposed as the outermost layer.

Note that the high-voltage sheathless shielded electric wire 270A is not limited to the one configured by removing the outer shield part, and the braided wire 730 is knitted on the outer peripheral side of the inner shield part in the manufacturing process of the high-voltage sheathless shielded electric wire 270A. A configuration in which the outer shield part is originally not covered, or an electric wire is constituted by the core electric wire and the inner shield part, and the shield part is covered with a braided wire 730 in post-processing may be employed.
The wire harness 700 has a configuration in which two end portions in the length direction of two high-voltage sheathless shielded electric wires 270A inserted from the bellows tubes 210 and 220 protrude, and the braided wire 730 is exposed at both end portions in the length direction. .

  Also in the wire harness 700, as in the wire harness 600 of the first embodiment, the plurality of low-voltage conductive wires 610 are the portions excluding both end portions in the length direction of the two high-voltage sheathless shielded wires 270A, that is, In addition, the portion where the bellows tubes 210 and 220 except the portion where the braided wire 730 is exposed is appropriately attached with a clamp 620, a band 350 or the like so as to be incidentally arranged in parallel.

  The high-voltage sheathless shielded electric wire 270A is not limited to the configuration in which the braided wire 730 is exposed over the entire length in the length direction, and the braided wire 730A is braided by removing the outer shield portion that covers only a part in the length direction. The structure which the line 730 exposed may be sufficient. For example, in the wire harness 700, the braided wire 730 is exposed only at the end side portion (the protruding portion from the bellows tubes 210 and 220) connected to the connector 250 in the length direction of the high-voltage sheathless shielded electric wire 270A. It is configured to do.

(Embodiment 3)
FIG. 8 shows a wire harness 800 according to the third embodiment in which the sheath tube structure 100 including the bellows tubes 210 and 220 is used. In the wire harness 800, for example, one high-voltage shielded electric wire 270 is inserted into each of the high-hardness bellows tube 210 and the normal-hardness bellows tube 220 formed in a spiral bellows shape, similarly to the wire harness 600 shown in FIG. The connector 250 is connected to one end of each of the two high-voltage shielded wires 270 at the end.

  Furthermore, the wire harness 800 has a short, high-hardness bellows at a connecting portion on one end side in the length direction (the right side portion in the length direction of the high-voltage shielded electric wire 270 in FIG. 8) where electromagnetic noise shielding is required. A tube 210 and a normal hardness bellows tube 220 are arranged.

  Specifically, one end side portion in the length direction of the high-voltage shielded electric wire 270 (the right side portion in the length direction of the high-voltage shielded electric wire 270 in FIG. 8) is installed at the boundary portion between the indoor side and the outdoor side. A saddle-shaped grommet 320 is attached, and the right end portion in FIG. 8 is set as the indoor wiring portion (in) with respect to the attachment location of the grommet 320 of the wire harness 800, and the left end portion in FIG. It is set in the outdoor routing part (out).

  And the wire harness 800 binds the outdoor wiring portions (out) of the two high-voltage shielded electric wires 270 at predetermined intervals in the length direction as appropriate with a band 350 or a tape in a state where the two are arranged in parallel. The high hardness bellows tube 210 and the normal hardness bellows tube 220 are inserted.

  Further, the indoor wiring portions (in) of the two high-voltage shielded electric wires 270 are respectively covered with a short high-hardness bellows tube 210 and a normal-hardness bellows tube 220 to be appropriately shielded. In other words, in the wire harness 800 of the third embodiment, the long wiring bellows tube 210 and the normal hardness bellows tube 220 are used in the outdoor wiring portion (out), and the end portion is weak in the indoor wiring portion (in). The configuration uses a high hardness bellows tube 210 and a normal hardness bellows tube 220.

  In the wire harness 800 as well, similarly to the wire harness 600 of the first embodiment, the plurality of low-voltage conductive wires 610 are appropriately clamped 620 so as to be in a state of being additionally arranged in parallel at the outdoor wiring portion (out). The band 350 is attached and bundled together.

(Embodiment 4)
FIG. 9 shows a wire harness 900 according to the fourth embodiment using the sheath tube structure 100 including the bellows tubes 210 and 220. This wire harness 900 is configured by arranging a short high-hardness bellows tube 210 and a normal-hardness bellows tube 220 at a connecting portion on one end side in the length direction where electromagnetic noise shielding properties are required.

The wire harness 900 can be shielded appropriately by covering the indoor wiring portions (in) of the two high-voltage shielded wires 270 with the short high-hardness bellows tube 210 and the normal-hardness bellows tube 220, respectively. That is, in the wire harness 900 of the fourth embodiment, as a partial use of the high-hardness bellows tube 210 and the normal-hardness bellows tube 220, the bellows tubes 210 and 220 are configured in a short shape, and the high-voltage shielded electric wire 270 is, for example, It is the structure partially provided in indoor routing parts (in), such as a rear seat back side.
In this case as well, an example is shown in which another low-voltage conductive wire 610 that does not generate noise is attached with a clamp 620, and is laid along and incidentally placed into a collective wiring state.

  In addition, the normal hardness bellows tube 220 in the first to fourth embodiments is, for example, an aluminum tube covered with an iron-based pipe, or an iron-based pipe replaced, or an aluminum pipe is subjected to iron-based plating. A pipe is preferable.

  Also, in the case of Embodiments 1 and 2 shown in FIGS. 6 and 7, an aluminum pipe covered with an iron pipe in an indoor wiring portion in the grounding part on one end side in the length direction, if necessary, It is also possible to provide a pipe in which an iron pipe is plated on an aluminum pipe.

  As described above, the wire harnesses 600, 700, 800, and 900 of Embodiments 1 to 4 using the sheath tube structure 100 including the bellows tubes 210 and 220 have shielding properties, shape retention properties, and handleability due to the sheath tube structure 100. ing.

(Embodiment 5)
FIG. 10 shows a wire harness 1000 according to the fifth embodiment using a sheath tube structure 100 made of a metal tube 310.
In the wire harness 1000, in the outdoor wiring portion (out), the high-voltage conductive wire 270A and the plurality of low-voltage conductive wires 610 are arranged in parallel in the same manner as in the above-described embodiment. In addition, the conducting wire 270A in the fifth embodiment is configured by a sheathless shielded electric wire in which the braided wire 730 is exposed over the entire length in the length direction.

  The wire harness 1000 includes a total of four short metal pipes 310S. Specifically, of the four metal pipes 310S, the two metal pipes 310Sa and 310Sb are on the connector 250 side in the length direction of the portion where the low voltage conductive wires 610 are arranged in parallel in the two high voltage sheathless shielded wires 270A. The remaining two metal pipes 310Sa and 310Sb of the four metal pipes 310S are provided on the grommet 320 side portion in the length direction.

  In the present embodiment, four metal pipes 310S are provided, but the number of metal pipes 310S is not limited to four, and the number of metal pipes 310S is set according to the conditions of the vehicle to which the wire harness 1000 is attached. You may increase to four or more.

  Two of these four metal pipes 310S are arranged in parallel with two high-voltage sheathless shielded electric wires 270A inserted, and one of the metal pipes 310S arranged in parallel is connected to the high-hardness metal pipe 310Sa. The other metal tube is formed of a normal hardness metal pipe 310Sb.

  In particular, at least in the indoor wiring portion (in) in the length direction of the wire harness 1000, the braided wire 730 constituting the conductive wire 270A is configured in any of the following embodiments.

(Embodiment A) Braided wire 730A in which a conductor plated with Sn is braided on copper or a copper alloy
(Embodiment B) Braided wire 730B obtained by braiding a copper or copper alloy with a Ni-plated conductor
(Embodiment C) Braided wire 730C braided into a double structure using both the conductors of Embodiments A and B
The braided wire 730C of the embodiment C may be braided with the conductor of the embodiment A and the conductor of the embodiment B arranged one above the other or may be arranged alternately one above the other.

The wire harness 1000 described above can exhibit the following actions and effects.
Since the wire harness 1000 has a configuration in which the braided wire 730 of the indoor wiring portion (in) is plated, specifically, any one of the above-described embodiments A to C, the shield characteristics are further improved. be able to. In addition, it is possible to suppress the generation of abnormal noise due to vibration or the like.

  As described above, the metal pipe 310S is arranged on both ends of the parallel arrangement portion of the high-voltage sheathless shielded electric wire 270A with the low-voltage conductive wire 610, and at least one of the two short metal pipes 310S arranged in parallel is arranged. Is configured with the high-hardness metal pipe 310Sa, the wire harness 1000 including the low-voltage conductive wire 610 can be efficiently fixed to a desired wiring shape.

Furthermore, by arranging the metal pipe 310S in the outdoor routing portion (out) excluding the indoor routing portion (in) in the length direction of the conductive wire, it is possible to suppress the generation of abnormal noise and noise due to vibration and the like. It is possible to reduce the weight.
In addition, since the high-voltage sheathless shielded electric wire 270A is configured by a sheathless shielded electric wire, it is possible to reduce the weight and suppress the generation of abnormal noise.

  In the fifth embodiment, the metal pipe 310S is disposed on each end side of both end portions in the length direction of the portion where the low-voltage conductive wires 610 are arranged in parallel in the two high-voltage sheathless shielded electric wires 270A (parallel arrangement portion). Two are arranged in parallel.

  Therefore, a bendable portion is secured between the two metal pipes 310S arranged on each side in the length direction of the parallel arrangement portion by the high-pressure sheathless shielded electric wire 270A not covered with the metal pipe 310S. can do. Therefore, the wire harness 1000 can obtain excellent packing properties, transportability, and assembling properties by appropriately bending this portion.

  Further, in the fifth embodiment, by forming the sheath tube with the metal pipe 310S, an excellent protection function of the high-voltage sheathless shielded electric wire 270A can be obtained in addition to the improvement of the shielding performance. Specifically, since the metal pipe 310S is excellent in strength, the high-pressure sheathless shielded electric wire 270A can be firmly protected from a stepping stone or the like even when the wire harness is arranged under the floor.

  Further, by configuring the sheath tube with the metal pipe 310S, it is possible to obtain excellent heat dissipation, heat resistance, and heat shielding function. Specifically, since the metal pipe 310S has excellent thermal conductivity, the heat inside the tube can be radiated, and for example, the conductive wire inserted in the summer can be protected from the heat outside the tube.

  In addition, by forming the sheath tube with the metal pipe 310S, excellent shape imparting properties (formability, assembly property, workability) can be obtained. Specifically, by arranging the metal pipe 310S that has been formed into a bent shape in advance, the wire harness 1000 can be fixed in a state of being wired in a desired shape.

  In addition, the metal pipe 310S has one end portion, both end portions, or a central portion in the length direction of the metal pipe 310S reduced in diameter around the entire circumference or partially as necessary, so that the high-pressure sheathless shielded electric wire 270A is used. The structure which fixes with respect to may be sufficient. In addition, the metal pipe 310S may be formed in a bent shape that is bent as necessary so that the wire harness 1000 has a desired wiring shape.

(Embodiment 6)
FIG. 11 shows a wire harness 1100 according to Embodiment 6 using a sheath tube structure 100 made of a metal tube 310.
The wire harness 1100 has a configuration similar to that of the wire harness 1000 of the fifth embodiment except for the configuration of the metal pipe 310L.

  Specifically, the wire harness 1100 includes a total of two elongated metal pipes 310L. The two metal pipes 310L are provided over the entire length in the length direction of the portion of the two high-voltage sheathless shielded electric wires 270A where the low-voltage conductive wires 610 are arranged in parallel.

One of the two metal pipes 310L is a high-hardness metal pipe 310La arranged in a state of covering one of the two high-voltage sheathless shielded electric wires 270A.
The other of the two metal pipes 310L is a normal hardness metal pipe 310Lb that is disposed in a state of covering the other of the two high-voltage sheathless shielded electric wires 270A.

  The wire harness 1100 having the above-described configuration has the following effects in addition to the functions and effects exhibited by the wire harness 1000 of the fifth embodiment, in particular, because the metal pipe 310L has a long configuration as described above. An effect can be obtained.

  Since the wire harness 1100 can cover the high-voltage sheathless shielded electric wire 270A over the entire length of the portion arranged in parallel with the low-voltage conductive wire 610 in the high-voltage sheathless shielded electric wire 270A, the shield performance described above Further, the protection function, heat dissipation function, and shape imparting function of the conductive wire can be obtained more remarkably.

(Embodiment 7)
FIG. 12 shows a wire harness 1200 according to Embodiment 7 using a metal tube structure.
The wire harness 1200 has the same configuration as that of the wire harness 1000 of the fifth embodiment except for the configuration of the metal tube 310.

  The wire harness 1200 includes a total of two short metal pipes 310S. Specifically, each of the two metal pipes 310S is composed of a short-sized high-hardness metal pipe 310Sa, and one of the two metal pipes 310S is replaced with two high-pressure metal pipes 310Sa. In the sheathless shielded electric wire 270A, the low-voltage conductive wire 610 is provided on one end side in the length direction of the portion arranged in parallel, and the other high-hardness metal pipe 310Sa is provided on the other end side in the length direction. I have.

  In the present embodiment, the two high-hardness metal pipes 310Sa are provided, but the number of the high-hardness metal pipes 310Sa is not limited to two, and the high-hardness metal pipes 310Sa are not hardened depending on the conditions of the vehicle to which the wire harness 1200 is attached. The number of metal pipes 310Sa may be increased to two or more.

  These two high-hardness metal pipes 310Sa are arranged so as to cover different portions in the longitudinal direction with respect to any one of the two high-voltage sheathless shielded electric wires 270A, and the two high-voltage sheathless metal pipes 310Sa The high hardness metal pipe 310Sa is not disposed on the other side of the shielded electric wire 270A.

  The wire harness 1200 having the above-described configuration has a configuration in which the high-hardness metal pipe 310Sa is disposed only on one high-pressure sheathless shielded electric wire 270A, in addition to the functions and effects exhibited by the wire harness 1000 of the fifth embodiment. Due to this, the following effects can be obtained.

  In the wire harness 1200, two high-hardness metal pipes 310Sa are arranged on one of the two high-voltage sheathless shielded electric wires 270A and fixed in a desired arrangement shape, and the one high-voltage sheathless shielded electric wire 270A is arranged. On the other hand, since the other high-voltage sheathless shielded electric wire 270A, which is not provided with the high-hardness metal pipe 310Sa and is poor in shape retention, is integrated in a state of being arranged in parallel, the wire harness 1200 as a whole efficiently It can be fixed to a desired routing shape.

(Embodiment 8)
FIG. 13 shows a wire harness 1300 according to Embodiment 8 using a metal tube structure.
The wire harness 1300 has the same configuration as that of the wire harness 1000 of the fifth embodiment except for the configuration of the metal pipe 310L.

  The wire harness 1300 includes one elongated high-hardness metal pipe 310La. Specifically, one high-hardness metal pipe 310La is provided over the entire length in the length direction of the portion where the low-voltage conductive wires 610 are arranged in parallel in the two high-voltage sheathless shielded electric wires 270A.

  One high-hardness metal pipe 310La is arranged so as to cover either one of the two high-voltage sheathless shielded electric wires 270A, and is composed of the high-hardness metal pipe 310La. That is, the high-hardness metal pipe 310La is not arranged on the other of the two high-voltage sheathless shielded wires 270A.

  The wire harness 1300 having the above-described configuration has a configuration in which the high-hardness metal pipe 310La is disposed only on one high-pressure sheathless shielded electric wire 270A, in addition to the functions and effects exhibited by the wire harness 1000 of the fifth embodiment. Due to this, the following effects can be obtained.

  The wire harness 1300 has a high-hardness metal pipe 310La arranged on one of the two high-voltage sheathless shielded wires 270A and fixed in a desired routing shape, and the other high-voltage sheathless shielded wire with poor shape retention. Since the high-voltage sheathless shielded electric wire 270A excellent in shape retaining property is integrated with the 270A in a state of being arranged in parallel, the wire harness 1300 as a whole can be efficiently fixed to a desired routing shape. it can.

  In addition, the two metal pipes 310 arranged in parallel in the above-described fifth to eighth embodiments may be configured by both high-hardness metal pipes 310Sa and La, or both may be configured by normal-hardness metal pipes 310Sb and Lb. Good.

  In the fifth to ninth embodiments, the metal pipes 310S and 310L are used as the sheath tubes. However, the metal pipes 310S and 310L are not limited to being made of metal. Is not limited. For example, you may comprise the bellows tubes 210 and 220 mentioned above instead of a metal tube as a sheath tube.

(Embodiment 9)
FIG. 14 shows a wire harness 1400 according to the ninth embodiment using the sheath tube structure 100 using the bellows tubes 210 and 220.
The wire harness 1400 covers the inner shield part (resin-coated part) 720, the braided wire 730, and the outer shield part 740 in this order in the radially outward direction with respect to the core electric wire (central electric wire) 710 disposed in the central portion. It is comprised by the two high voltage | pressure shielded electric wires 270 which are structures, and the several low voltage | pressure conductive wire 610 arrange | positioned in parallel.

And the predetermined length part by the side of the edge part in the outdoor wiring part (out) is exposed, and the intermediate part is surrounded by the long bellows tubes 210 and 220.
Specifically, one of the two high-voltage shielded electric wires 270 is inserted into the high-hardness bellows tube 210, and the other high-voltage shielded electric wire 270 is inserted into the normal-hardness bellows tube 220. That is, one high-voltage shielded electric wire 270 is inserted through each of the bellows tubes 210 and 220. On the other hand, the plurality of low-voltage conductive wires 610 are collectively inserted into the normal hardness bellows tube 220 having a larger diameter than the normal hardness bellows tube 220 through which the high-voltage shielded electric wire 270 is inserted. Then, the high-hardness bellows tube 210 and the two normal-hardness bellows tubes 220 are arranged in parallel, and are appropriately bundled at predetermined intervals in the length direction with a band 350 or a tape.

  The bellows tubes 210 and 220 are aluminum sheath tubes having a hardness (Vickers hardness) of 30 to 40, and from the viewpoint of heat conductivity, workability such as formability and shape retention, or anticorrosion, The high hardness bellows tube 210 is composed of a high hardness sheath tube having a thickness of 0.5 to 0.8 mm, and the normal hardness bellows tube 220 is composed of a hardness sheath tube having a thickness of 0.4 to 0.3 mm or less.

Further, although the high hardness bellows tube 210 and the normal hardness bellows tube 220 have different thicknesses, as shown in FIG. 15, the outer diameter size, the inner diameter size, and the pitch are formed in the same manner.
Furthermore, the difference between the outer diameter and the inner diameter constituting the bellows shape is set to 1.9 to 1.3 mm for the high-hardness bellows tube 210 and is set to 2.0 to 2.4 mm for the normal-hardness bellows tube 220. Yes.
As described above, the high-hardness bellows tube 210 has a higher hardness than the normal-hardness bellows tube 220 by fixing the outer diameter, inner diameter, and pitch, and increasing only the plate thickness.

  In FIG. 14, the outer periphery of the outer shield part 740 is covered with the second braided wire 750 and the outer side thereof is covered with the resin COT760 in the high-voltage shielded electric wire 270 in the indoor wiring portion (in) on the right side of the grommet 320. Yes.

Specifically, the braided wire 730 constituting the high-voltage shielded electric wire 270 is a braid made of a conductor obtained by applying Sn plating to copper or a copper alloy, and plays a role of an electromagnetic wave shield together with the outer shield part 740.
On the other hand, the second braided wire 750 is a braid made of a conductor obtained by applying Ni plating to copper or a copper alloy, and serves as a low-frequency shield.

  In the wire harness 1400 configured as described above, the bellows tubes 210 and 220 are attached to the lower part of the vehicle floor with clamps, and the high-voltage shielded electric wire 270 and the low-voltage conductive wire 610 are exposed in the outdoor wiring portion (out). Is routed in the engine room. Further, the indoor routing portion (in) is routed below the rear seat.

The wire harness 1400 having such a configuration and attached to the vehicle by the attachment method as described above has various effects as described below.
First, similarly to the wire harnesses 600 to 1300 of the embodiments described so far, the wire harness 1400 is arranged with the wire harness 1400 by the sheath tube structure 100 composed of the high hardness bellows tube 210 and the normal hardness bellows tube 220. While being able to form in the desired shape according to a cable route and maintaining the shape, the attachment ease of the wire harness 1400 to a cable route can be improved.

  In addition, in the outdoor wiring portion (out), the lower part of the vehicle floor is inserted through the bellows tubes 210 and 220 together with the high-voltage shielded electric wire 270 and the low-voltage conductive wire 610, so a protector such as an under cover for the wire harness 1400 is required. do not do. In addition, the high-voltage shielded electric wire 270 and the low-voltage conductive wire 610 in the engine room and the indoor wiring portion (in) where the wire harness 1400 such as stepping stones is less damaged are covered with the bellows tubes 210 and 220. Therefore, it is possible to reduce the weight while securing a protective function against the fear that the wire harness 1400 may be damaged.

  In addition, for example, when the high-voltage shielded electric wire 270 in the indoor wiring portion (in) is covered with the bellows tubes 210 and 220, a contact sound with metal such as a floor panel is generated by vibration, but the indoor wiring portion (in) Since the high-voltage shielded electric wire 270 is surrounded by the flexible resin COT760, the generation of the contact sound described above can be suppressed. In addition, even when contact sound is generated, in the case of the resin COT760, the contact sound between the metal and the metal does not resonate with respect to the contact sound between the metals, and the contact sound does not resonate. Pleasure can be suppressed.

  In the above description, the resin COT 760 is attached to the high-voltage shielded electric wire 270 exposed from the bellows tubes 210 and 220 in the indoor wiring portion (in). However, in the engine wiring in the outdoor wiring portion (out). Resin COT 760 may be attached to the exposed portion from the bellows tubes 210 and 220 of the high-voltage shielded electric wire 270 to be arranged.

  Further, in particular, heat radiation generated in the low-voltage conductive wire 610 and the high-voltage shielded electric wire 270 by the bellows-shaped bellows tubes 210 and 220 through which the high-voltage shielded electric wire 270 and the low-voltage conductive wire 610 are inserted in the lower floor portion. In addition to improving the heat resistance, it is possible to improve the heat shielding performance from the outside of the engine or the like, so that the required heat resistance performance of the low voltage conductive wire 610 and the high voltage shielded electric wire 270 can be reduced. Therefore, the size and specifications of the low-voltage conductive wire 610 and the high-voltage shielded electric wire 270 can be reduced, and the weight and cost can be reduced.

  Furthermore, since the second braided wire 750 is provided outside the high-voltage shielded electric wire 270 having the braided wire 730 therein, the shielding performance against electromagnetic waves having a wide frequency range from high frequencies to low frequencies can be improved.

In the above description, the second braided wire 750 is provided in the indoor wiring portion (in) of the high-voltage shielded electric wire 270, but the second braided wire 750 may be provided in the entire high-voltage shielded electric wire 270. Furthermore, the braided wire 730 may be configured by braiding with a conductor plated with Ni, and the second braided wire 750 may be configured with braiding with a conductor plated with Sn. Further, a braid made of a conductor plated with Sn may be provided outside the second braided wire 750 constituted by a braid made of a conductor plated with Ni.
Further, a high hardness metal pipe 310La may be used instead of the high hardness bellows tube 210, and a normal hardness metal pipe 310Lb may be used instead of the normal hardness bellows tube 220. Furthermore, instead of the bellows tubes 210 and 220, a spiral bellows tube 510 may be used.

  The wire harnesses 600 to 1400 are not limited to the configuration in which the two high-voltage shielded electric wires 270 and the two high-voltage sheathless shielded electric wires 270A are arranged in parallel, and may have a configuration in which three or more are arranged in parallel. Further, the number of the low-voltage conductive wires 610 is not limited, and the number of the low-voltage conductive wires 610 only needs to be provided according to the mounting vehicle, and may be one low-voltage conductive wire 610.

  Next, with reference to FIG. 16, a description will be given of a shield property comparison test performed for a configuration in which an aluminum corrugated structure is provided on the outer surface of the bellows tube when the bellows tube is used as the sheath tube.

  FIG. 16 shows the results of a comparative test of shielding performance when an aluminum corrugate for enhancing shielding performance is applied to the outer surface of the bellows tube. This aluminum corrugate has characteristics such as flexibility, corrosion resistance, and vibration resistance.

  As a bellows tube to be used as a test object, there are two types, a thin aluminum corrugated bellows tube 2010 having a thin aluminum corrugated structure and a relatively thick aluminum corrugated bellows tube 2020 having a thick aluminum corrugated structure. Was used for the comparative test. Among the bellows tubes described in FIG. 6, the thin aluminum corrugated bellows tube 2010 corresponds to the normal hardness bellows tube 220, and the thick aluminum corrugated bellows tube 2020 corresponds to the high hardness bellows tube 210.

  Then, a comparative test was performed using a bellows tube 2030 having a braided shield as a comparative example of the thin aluminum corrugated bellows tube 2010 and the thick aluminum corrugated bellows tube 2020, and a bellows tube 2040 provided with a copper-plated corrugated corrugated tube. did. As a result, it was confirmed that the bellows tubes 2010 and 2020 subjected to the respective aluminum corrugations can obtain higher shielding performance than the bellows tube 2030 provided with the braided shield as is apparent from the graph shown in FIG.

  In particular, it was confirmed that the electromagnetic noise shielding property is highest at frequencies of 100 MHz or less, specifically, around 1 MHz, and the electromagnetic noise shielding property is higher than that of the bellows tube 2040 provided with the copper plating corrugated. Therefore, the thin aluminum corrugated bellows tube 2010 and the thick aluminum corrugated bellows tube 2020 can not only improve the workability of the bellows tube by increasing the hardness of the bellows tube but also shield the outer surface of the bellows tube such as an aluminum corrugated tube. Can be used as a bellows tube having a shielding property.

  FIG. 17 shows a packaging state of the wire harness 1500. This wire harness 1500 is configured by arranging another conductive wire 1510 in parallel with a sheath tube structure 100 of a long high-hardness bellows tube 210 and a normal hardness bellows tube 220.

  Among these, for the sheath tube structure 100, an aluminum corrugate is further applied to the outer surface to enhance the shielding property. In this case, for example, a thin shield layer of about 0.3 mm becomes a relatively soft sheath structure 100 and is suitable for packaging. Further, when the shield layer of the aluminum corrugate is about 0.8 mm, the sheath tube structure 100 is relatively hard, the strength of the sheath tube structure 100 is increased, and the shape maintenance performance is further enhanced.

  In particular, in the case of a thin shield layer, when the wire harness 1500 is packed and carried, it can be rounded and bent into a small ellipse, so that it is stored in a container 1520 such as a horizontally long box-shaped polycontainer. Can be transported easily.

  As described above, the sheath tube structure is excellent in handleability because the bellows tube itself is lightweight and flexible, and sufficient strength can be obtained even if it is thin because of the bellows structure. Furthermore, since the bellows tube can be bent freely, it can be easily adapted to the underfloor shape of the vehicle. For this reason, even if it is a single sheath tube structure, it can be commonly used for many vehicle types.

  In addition, when attaching the sheath tube structure, one high-hardness bellows tube 210 is hard and can maintain its shape, so that it can be handled like a metal pipe. It can be paralleled along the line.

  Furthermore, if all the conductive wires are covered with a bellows tube, a shielding property can be obtained without using a braid. Moreover, waterproofness is also obtained. Furthermore, when the sheath tube structure is routed under the floor of the vehicle, the conductive wire is protected by the bellows tube, so it is not affected by stones when the vehicle is running, does not resonate even when subjected to vibration, and reduces sound. .

As described above, in the correspondence between the configuration of the present invention and the above-described embodiment,
The sheath tube of the present invention corresponds to the high-hardness bellows tube 210, the normal altitude bellows tube 220, or the metal tube 310 (310La, 310Sa, 310Lb, 310Sb).
The other bellows tube usually corresponds to the advanced bellows tube 220,
The screwing means corresponds to the helical bellows tubes 510 and 520, the L-shaped cylindrical body 530, and the relay bellows tube 540,
The spiral bellows shape corresponds to the spiral bellows tube 500,
The shield portion for shielding electromagnetic noise corresponds to the annular fastener 400, the spiral bellows tube 520, and the L-shaped cylinder 530,
The low-voltage conductive wire corresponds to the low-voltage conductive wire 610,
The high voltage conductive wire or shield conductive wire corresponds to the high voltage shielded electric wire 270 or the high voltage sheathless shielded electric wire 270A,
The first shield member corresponds to the braided wire 730,
The second shield member corresponds to the second braided wire 750,
The cover body corresponds to the resin COT760,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained based on the technical idea described in the claims.

  The present invention can be applied to vehicles such as electric vehicles that require shielding of electromagnetic noise generated from conductive wires.

DESCRIPTION OF SYMBOLS 100 ... Sheath tube structure 210 ... High hardness bellows tube 220 ... Normal high-grade bellows tube 240 ... High-hardness bending part 250 ... Connector 270 ... High voltage shielded electric wire 270A ... High voltage sheathless shielded electric wire 310 (310La, 310Sa, 310Lb, 310Sb) ... Metal pipes 400,410 ... Round fasteners 500,510,520 ... Helix bellows tube 530 ... L-shaped cylinder 540 ... Relay bellows tube 610 ... Low-voltage conductive wire 730 ... Braid wire 750 ... Second braid wire 760 ... Resin COT
600, 700, 800, 1000, 1100, 1200, 1300, 1400, 1500 ... wire harness

Claims (11)

A plurality of sheath tubes that allow the insertion of conductive wires are arranged adjacent to each other in parallel,
At least one of the plurality of sheath tubes arranged in parallel,
A sheath tube structure composed of a high-hardness sheath tube having a higher hardness than the other sheath tubes arranged in parallel. The sheath tube,
Consists of a long bellows tube formed in a bendable bellows shape,
The high hardness sheath tube,
The sheath tube structure according to claim 1, wherein a bent portion obtained by bending the bellows tube is constituted by a high-hardness bellows tube which is at least a high-hardness bent portion having higher hardness than the other bellows tubes arranged in parallel. The high hardness bending portion,
The sheath tube structure according to claim 2, which is formed by crushing the bellows shape at the bent portion. In the bellows tube,
A screwing means for screwing and connecting the tube ends of the bellows tube;
The high hardness bending portion,
The sheath tube structure according to claim 2, wherein the connecting portion screwed and connected by the screwing means is bent. The screwing means;
The sheath tube structure according to claim 4, wherein the bellows shape of the bellows tube is a spiral bellows shape having a spiral shape in the longitudinal direction. The sheath tube structure according to any one of claims 1 to 5, wherein a shield portion for shielding electromagnetic noise is provided in a portion of the sheath tube that is required to have electromagnetic noise shielding properties. For each of the sheath tubes in the sheath tube structure according to any one of claims 1 to 6, each one of the conductive wires is inserted,
The wire harness provided with the connector in the at least one edge part of the exposed part exposed from the both ends of the said sheath pipe in the said conductive wire. The wire harness according to claim 7, wherein the exposed portion is provided with shielding means for shielding electromagnetic noise covering the outer periphery thereof. A wire harness composed of a low-voltage conductive wire and a high-voltage conductive wire,
For each sheath tube in the sheath tube structure according to any one of claims 1 to 6,
Inserting the high-voltage conductive wires one by one and allowing the plurality of low-voltage conductive wires to be combined,
A wire harness in which at least one of the sheath pipes through which the high-voltage conductive wires are inserted is composed of a high-hardness sheath pipe. The high-voltage conductive wire is composed of a shield conductive wire including a first shield member for shielding electromagnetic noise,
The wire harness according to claim 9, further comprising a second shield member that covers an outer periphery of the shield conductive wire. The wire harness according to claim 9 or 10, comprising a cover body having flexibility outside an exposed portion exposed from both ends of the sheath pipe in the high-voltage conductive wire.