JP5480124B2 - Sheath tube and wire harness - Google Patents

Description

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

In general, among the wires connected between the equipment such as an electric vehicle inverter device and a motor, in particular, high voltage power lines, it is known that a large influence of electromagnetic noise generated by propagation from it and equipment a high-frequency current flows It has been.
Thus, a high voltage power line as a noise source, by constituting a shielded wire having a shield member, so as not to adversely affect to other devices or wires, has been cut off the noise generated.
Further, the outer periphery of the plurality of shielded wires is covered with a protector made of synthetic resin or the bellows tube disclosed in Patent Document 1, thereby protecting the wires from external damage.
In other words, the conventional wire harness has a configuration in which each member is provided in order to secure a shielding function against electromagnetic noise and a protection function against an external load. In addition, the cost increases and the weight increases.

  For such a problem, Patent Document 2 proposes a conductive path that shields electromagnetic noise in a state where these non-shielded wires are collectively protected by inserting a plurality of non-shielded wires into a metal pipe. Has been.

  As a result, it has been possible to reduce the number of parts by using a metal pipe having the functions described above, which has a shield function and a protection function, as described above. Space saving, cost reduction, and weight reduction can be expected.

  By the way, recently, for various reasons such as improvement of the mounting position relationship of parts in a vehicle and reduction of wiring harness wiring space, as shown in FIG. 5, the high-voltage electric wire 20H and the low-voltage electric wire 20L ′ are made of the same metal. The number of wire harnesses 100 that are inserted through the pipe 101 and routed together on the same route is increasing.

  However, in the case of the conventional wire harness 100 having a configuration in which a plurality of wires 20 in which high-voltage wires 20H and low-voltage wires 20L ′ are mixed are collectively inserted into one internal space of the metal tube 101, the low-voltage wires 20L ′ Since it is affected by electromagnetic noise from the high-voltage electric wire 20H, which is a noise source, it has been necessary to use, for example, a shielded electric wire with a configuration in which the outer periphery of the conductor is covered with a braid 23 as a shielding member.

  As described above, when a plurality of electric wires 20 in which the high-voltage electric wires 20H and the low-voltage electric wires 20L ′ are mixed are inserted into a metal pipe, the influence of electromagnetic noise in the conductive path in Patent Document 2 is the same as described above. It is assumed that the problem of receiving

  That is, when the high-voltage electric wires 20H and the low-voltage electric wires 20L ′, which are noise sources, are collectively inserted into the same metal tube 101 and routed through the same route, all the electric wires 20 including the low-voltage electric wires 20L ′ are unshielded. It was not possible to realize this, and it was necessary to configure the high-voltage electric wire 20H as a noise source or the low-voltage electric wire 20L ′ affected by noise as a shielded electric wire. .

  In addition, when trying to insert a plurality of electric wires into the same metal tube, there is a problem that the operation of inserting the metal tube into the metal tube is troublesome because the electric wires are bent and contact each other in the metal tube.

JP 2009-123461 A JP 2004-171952 A

Therefore the present invention is a wiring configuration for arranging a high-voltage power line and the low-voltage power line on the same route, without being affected by electromagnetic noise low voltage power lines from the high voltage power line as a noise source, a low voltage power lines can be reduced in unshielded of all wires, including, consequently, reduction of the installation space, weight reduction, it is possible to reduce the cost, also a smoothly inserted in the plurality of electric wires The purpose is to provide a sheath tube and a wire harness that can be operated.

The present invention is a sheath tube formed with a shield member for blocking electromagnetic noise and having a wire insertion space inside a sheath tube body that allows insertion of a plurality of wires, and the tube axis direction in the wire insertion space For a low voltage that allows insertion of a high voltage electric wire that allows electromagnetic noise to be inserted and a low voltage electric wire having a rated current lower than that of the high voltage electric wire . A partition wall that separates the high-voltage electric wire from the low-voltage electric wire is formed in the electric wire insertion space along the tube axis direction, and a plurality of orthogonal cross sections of the electric wire insertion space are formed. The cross-sectional configuration allows the parallel arrangement of the electric wires, and at least one of the high-voltage insertion space and the low-voltage insertion space corresponds to the corresponding insertion space. A plurality of the electric wires having a rated current of about a degree can be arranged in parallel, and in the orthogonal cross section of the electric wire insertion space, the partition wall is a straight line along a direction that coincides with a thickness direction orthogonal to the arrangement direction of the electric wires Jo to form the constitute the shield member and the partition wall is constituted by the said sheath tube body together, said partition wall, disposed only between the high-voltage insertion space and the low-voltage insertion space The at least one insertion space is constituted by a non-isolation space in which the electric wires having the same rated current are not separated by the partition wall .

With the above configuration, the wiring configuration for arranging a high-voltage power line and the low-voltage power line on the same route, without being affected by electromagnetic noise low voltage power lines from the high voltage power line as a noise source, a low voltage power lines can be reduced in unshielded of all wires, including, as a result, it is possible to achieve reduction of the installation space, weight, and cost.

  Specifically, multiple wires consisting of a high-voltage wire that generates electromagnetic noise and a low-voltage wire that is affected by the electromagnetic noise generated from the high-voltage wire are inserted into the wire insertion space inside the sheath body. However, in the wire insertion space, the low-voltage wire is isolated from the high-voltage wire by the partition wall made of a shield member. It is possible to prevent being affected by electromagnetic noise generated from the electric wire.

  Therefore, it is possible to realize non-shielding by making all the wires inserted into the sheath tube into non-shielded wires, and to reduce the wiring space to be routed in the same route, to reduce the weight, and to reduce the cost. it can.

  Furthermore, with the above-described configuration, even a plurality of electric wires can be smoothly inserted into the sheath tube.

Specifically, the number of wires inserted into the same space can be reduced by dividing the wire insertion space into a high voltage insertion space and a low voltage insertion space by a partition wall. Therefore, in the above electric wire insertion space, reduces the chance of mutual contact electric wires which deflected from each other, Ru can be inserted smoothly with respect to the sheath tube be a plurality of wires.

Furthermore, according to the configuration described above, the orthogonal cross section of the wire insertion space is configured in a cross-sectional form that allows a plurality of the wires to be arranged in parallel, for example, the orthogonal cross section of the wire insertion space is circular. it is possible as compared with the case of the cross-sectional configuration reduction in thickness of the sheath tube body, not bulky when mounted on the vehicle body, also Ru can be mounted easily form.

Furthermore , according to the above-described configuration, for example, when the sheath tube main body and the partition wall are separately formed, the sheath tube main body and the partition wall are separately formed and then integrated with each other. For example, by extruding, a sheath tube in which the sheath tube main body and the partition wall are integrally formed can be formed all at once, and mass production is also possible.

As an aspect of the present invention, the shield member can be formed of a metal material.
According to the above configuration, by forming the shield member from a metal material, an excellent shield function can be exhibited, and since the strength and heat resistance are excellent, an excellent protection function against an external load is ensured. can do. Furthermore, since it is excellent in thermal conductivity, heat can be prevented from being generated inside, and an excellent heat equalizing function between the inside and outside of the tube can be ensured. Furthermore, since many metal materials have stable material supply properties, they are suitable for mass production.

Moreover, as an aspect of the present invention, the partition wall can be formed of a braid.
Since the braid is excellent in deformability and bendability, by configuring the partition wall with such a braid, for example, even when the routing path has a bent portion, it corresponds to the shape of the bent portion. It can be bent and routed.
The braided material has, for example, a configuration in which a wire such as a metal wire is knitted. For example, a braid made of a conductor in which copper or copper alloy is tin-plated (hereinafter referred to as Sn plating), or copper or copper. It can be a braid made of a conductor obtained by applying nickel plating (hereinafter referred to as Ni plating) to the alloy.

Also the present invention is constituted by a sleeve pipe described above, a high electrostatic pressure electric wire is inserted into the high-voltage insertion space in said sheath tube, and low electric pressure electric wires inserted into the insertion space for a low voltage in the sheath tube and, characterized in that said low conductive pressure wire is a wire harness which is constituted by low-pressure non-shielded wire.

This invention, in routing mode for routing the high-voltage power line and the low-voltage power line on the same route, without being affected by electromagnetic noise low voltage power lines from the high voltage power line as a source of noise, low-voltage Non-shielding of all electric wires including piezoelectric wires can be achieved. As a result, the wiring space can be reduced, the weight can be reduced, and the cost can be reduced. It is possible to provide a sheath tube and a wire harness that can be used.

Structure explanatory drawing of the wire harness of 1st Embodiment. Structure explanatory drawing of the wire harness of 1st Embodiment. Structure explanatory drawing of the wire harness of 2nd Embodiment. Structure explanatory drawing of the wire harness of 3rd Embodiment. Structure explanatory drawing of the conventional wire harness.

An embodiment of the present invention will be described below with reference to the drawings.
(First embodiment)
The wire harness 10A of the first embodiment has a configuration suitable for electrically connecting devices such as a battery and a motor of a vehicle, particularly an electric vehicle, and flowing a high-frequency current. For example, the wire harness 10A is arranged under the vehicle floor. doing.

  The wire harness 10A has a conforming shape according to the uneven shape of a predetermined mounting position under the vehicle floor (not shown), and is attached to the mounting position by a clamp (not shown).

  That is, 10 A of wire harnesses form the appropriate bending part in the pipe-axis direction X so that it may become the shape shape | molded in the said conformation shape, as shown to FIG. 1 (a), (b) and FIG. . FIG. 1A shows a part of the wire harness 10A in the tube axis direction X, specifically, a part of the first bent part 33 and the second bent part 34 as bent parts and peripheral parts of these bent parts. It is the external view shown in the cross section. FIG. 1B is an end view taken along line AA in FIG. FIG. 2 is a diagram illustrating the configuration of the sheath tube 30 illustrated in FIG. 1, and is a diagram illustrating the configuration of the sheath tube 30 in which a part of the sheath tube main body 32 is omitted in the circumferential direction. In the following description, the X direction, the W direction, and the T direction in FIG. 1 will be described as the tube axis direction X, the width direction W, and the thickness direction T of the wire harness 10A.

  10A of wire harnesses are comprised with the three electric wires 20, and the aluminum alloy sheath tube 30 which has the shielding function which has an electromagnetic noise interruption | blocking function, and the protection function with respect to an external load.

Of the three electric wires 20, two electric wires 20 have a high rated current corresponding to the high frequency current and are configured as high voltage electric wires 20H that generate electromagnetic noise. One electric wire 20 is a high voltage electric wire 20H. It is configured as a low-voltage electric wire 20L that has a lower rated current and is easily affected by electromagnetic noise from the high-voltage electric wire 20H. Each of the high-voltage electric wire 20H and the low-voltage electric wire 20L is composed of a braided metal wire or a shielded electric wire that does not cover the outer periphery of the conductor 21 with a shield member such as metal foil.
The electric wire 20 has a configuration in which the outer periphery of a metallic conductor 21 such as a copper alloy is covered with a synthetic resinous insulating coating 22 such as polyvinyl chloride.

  The sheath tube 30 includes a sheath tube main body 32 that constitutes the outer peripheral surface of the tube, and a partition wall 31 that divides the electric wire insertion space 40 included in the sheath tube main body 32 into a high voltage insertion space 40H and a low voltage insertion space 40L. The sheath tube main body 32 and the partition wall 31 are integrally formed by extrusion molding.

  In the sheath tube main body 32, an orthogonal cross section orthogonal to the tube axis direction X is formed as an oblong cross section having a long width direction W with respect to the thickness direction T. In other words, the wire insertion space 40 inside the sheath tube main body 32 has a length that allows insertion in a state in which the three wires 20 are arranged in parallel along the width direction W, as shown in FIG. It is formed with a hole-shaped orthogonal cross section.

  In addition, the long hole shape is a semicircular arc shape in which both end sides in the width direction W that are long with respect to the length in the thickness direction T are opposed to each other in the width direction W, and the pair of semicircular arc shapes. One end of the thickness direction T is linearly connected along the width direction W, and the other end of the thickness direction T is linearly connected along the width direction W.

  The partition wall 31 includes the wire insertion space 40 in a linear form along a direction that coincides with the thickness direction T so that the volume ratio of the high voltage insertion space 40H and the low voltage insertion space 40L is approximately 2: 1. It arranges so that it may be divided.

Thus, the partition wall 31 isolates the two and the high-voltage wires 20H of inserted through the high-voltage insertion space 40H, the one that is inserted into the low voltage through space 40L and the low-pressure electric wire 20L.

The high-voltage through space 40H are formed by the cross section perpendicular to permit insertion in a state in parallel positioned adjacent each other in the widthwise direction W high-pressure wires 20H two. Low-voltage insertion space 40L is a single low-voltage electric wire 20L, with respect to two high-voltage wires 20H of which are arranged in parallel, in cross section perpendicular to permit insertion in a state in parallel disposed with intervening partitions 31 Forming.

Further, the partition wall 31, the first bent portion 33 in the tube axis direction X of the sheath body, and corresponding to each of the bent shape of the second bending portion 34 is bent, contact the cross section perpendicular to the insertion space 40H for high-voltage There are, to form such a space ratio of the high-voltage insertion space 40H and the low-voltage insertion space 40L is constant over the entire length of the tube axis X.

As described above, the wire harness 10A can route the low voltage wire 20L and the high voltage wire 20H on the same path while being protected by the sheath tube 30, and has the following various functions and effects. it can.
Sheath tube 30, the metal partition wall 31 which isolates the low pressure lines 20L relative high wires 20H, because it forms the electrical wire insertion space 40 along the tube axis direction X, and the high-voltage electric wire 20H When the plurality of electric wires 20 composed of the low-voltage electric wires 20L are collectively inserted into the electric wire insertion space 40 inside the sheath tube main body 32, the partition wall 31 made of aluminum alloy having a shielding function in the electric wire insertion space 40, The high-voltage electric wire 20H and the low-voltage electric wire 20L can be inserted while being separated from each other.

Therefore, all the electric wires 20 including the high-voltage electric wire 20H and the low-voltage electric wire 20L affected by the electromagnetic noise generated from the high-voltage electric wire 20H are made non-shielded, and the plurality of non-shielded electric wires are arranged on the same route. Even if measures are taken, it can be prevented from being affected by electromagnetic noise.

  Accordingly, it is possible to realize non-shielding by making all the electric wires 20 inserted through the sheath tube 30 into non-shielded electric wires 20, and reduce the weight of the plurality of electric wires 20 arranged in the same route and reduce the cost. You can plan.

  The sheath tube 30 has a configuration in which the electric wire insertion space 40 is divided into a high voltage insertion space 40H and a low voltage insertion space 40L in an orthogonal cross section orthogonal to the tube axis direction X by the partition wall 31. Therefore, the insertion operation of inserting the plurality of electric wires 20 into the sheath tube 30 can be performed smoothly.

  In detail, the electric wire 20 has flexibility, so that a plurality of electric wires are inserted into the electric wire insertion space 40 that is not divided by the partition wall 31 as in the prior art. When the wires 20 are inserted together, the wires 20 bend in the wire insertion space 40 and the insulating coatings 22 and 22 having high frictional resistance on the outer peripheral side of the wires 20 come into contact with each other. There was a problem that it took time and effort.

Inserting contrast, the electrical wire insertion space 40, and divided by a partition 31 as described above to a high voltage through space 40H and the low-voltage insertion space 40L, the high-voltage wires 20H to the high-voltage insertion space 40H as well as, because of the configuration for inserting the low-voltage electric wire 20L to a low-voltage insertion space 40L, it is possible to reduce the number of electric wires 20 is inserted into the same space.
Therefore, the insertion operation of inserting a large number of electric wires 20 into the sheath tube 30 can be performed smoothly.

  Further, the sheath tube 30 is configured such that the orthogonal cross section of the electric wire insertion space 40 has a cross sectional configuration that allows a plurality of the electric wires 20 to be arranged in parallel, for example, the orthogonal cross section of the electric wire insertion space 40. Since the sheath tube main body 32 can be thinned as compared with the case of the circular cross-sectional shape, it is not bulky when attached to the vehicle, and can be easily attached.

Further, since the sheath tube 30 is configured with the cross-sectional shape that allows the plurality of electric wires 20 to be arranged in parallel, the orthogonal cross section of the electric wire insertion space 40 is configured with the high-voltage electric wire 20H and the low-voltage electric wire 20L. The partition wall 31 disposed between the low-voltage wire 20L and the high-voltage wire 20H is isolated from the high-voltage wire 20H in the wire insertion space 40. It can be formed in an easy form.

  Furthermore, since the partition wall 31 has a shape in which both ends of the sheath tube main body 32 in the thickness direction T are installed in the long hole-shaped wire insertion space 40 which is long in the width direction W with respect to the thickness direction T. The function as a reinforcing rib of the tube 30 is also exhibited, and an effect that the strength against an external load can be improved is also achieved.

  Further, the sheath tube 30 is formed by integrally forming the sheath tube main body 32 and the partition wall 31 by extrusion molding, for example, as in the case where the sheath tube body 32 and the partition wall 31 are configured separately. After the tube body 32 and the partition wall 31 are separately formed, the sheath tube 30 in which the sheath tube body 32 and the partition wall 31 are integrally formed by extrusion molding is not required without the need to attach them integrally to each other. It can be formed at once and mass production is possible.

  In addition, as in the case where the sheath tube main body 32 and the partition wall 31 are configured separately, the boundary portion between the sheath tube body 32 and the partition wall 31 has irregularities that hinder the insertion of the electric wire 20 such as a joint or an attachment member. Therefore, when the electric wire 20 is inserted into the sheath tube main body 32, the electric wire 20 can be smoothly inserted without being caught by these irregularities.

  Since the partition wall 31 is made of a metal material such as an aluminum alloy material, it can exhibit an excellent shielding function against electromagnetic noise, and is excellent in strength and heat resistance, so it has excellent protection against external loads. Function can be secured. In addition, it has superior thermal conductivity compared to synthetic resin, so it can be avoided that heat is generated inside, and an excellent heat equalizing function can be secured between the inside and outside of the tube. Is suitable for mass production due to its stable material supply.

Below, wire harness 10B, 10C of other embodiment is demonstrated.
However, among the configurations of the wire harnesses 10B and 10C described below, the same reference numerals are given to the same configurations as the wire harness 10A in the above-described embodiment, and the description thereof is omitted.

(Second Embodiment)
As shown in FIG. 3, the wire harness 10 </ b> B of the second embodiment includes a sheath tube 30 </ b> B and four electric wires 20. In addition, FIG. 3 shows the said orthogonal cross section of the wire harness 10B, and shows the end elevation corresponding to FIG.1 (b).

  The sheath tube main body 32 </ b> B includes an electric wire insertion space 40 </ b> B that allows insertion in a state in which the four electric wires 20 are arranged in parallel.

The partition wall 31B includes a first partition wall 31Ba and a second partition wall 31Bb, and is disposed in the wire insertion space 40B so as to be parallel to each other in the width direction W.
The electric wire insertion space 40B is composed of a first electric wire insertion space 41 and a second electric wire in order from one end side in the width direction W to the other end side (left side to right side in FIG. 3) by the first partition wall 31Ba and the second partition wall 31Bb. It is divided into an insertion space 42 and a third electric wire insertion space 43.

  Specifically, the first electric wire insertion space 41 is divided into spaces that allow the insertion of one electric wire 20 by the first partition wall 31Ba, and the second electric wire insertion space 42 includes the first partition wall 31Ba and the second partition wall. 31Bb divides the space between the partition walls 31Ba and 31Bb into a space that allows one wire 20 to be inserted, and the third wire insertion space 43 allows the two wires 20 to be inserted by the second partition wall 31Bb. It is divided into spaces.

According to the wire harness 10B described above, the electric wire insertion space 40B can be divided into three spaces by the two partition walls 31B.
For this reason, although not shown in figure, when it consists of the combination which comprised the three electric wires 20 as the high voltage | pressure electric wire 20H among the four electric wires 20, and comprised the one electric wire 20 as the low voltage electric wire 20L, for example, The two low-voltage wires 20L can be isolated from the three high-voltage wires 20H even if they are inserted into any one of the first wire insertion space 41 and the second wire insertion space 42.

Therefore, even if a plurality of non-shielded electric wires 20 including a high-voltage electric wire 20H and a low-voltage electric wire 20L affected by the electromagnetic noise generated from the high-voltage electric wire 20H are arranged in the same route, the electromagnetic noise It is possible to achieve non-shielding by using all the electric wires 20 inserted through the sheath tube 30B as the non-shielded electric wires 20.

  Furthermore, the said wire harness 10B arrange | positions 1st partition 31Ba and 2nd partition 31Bb in the wire penetration space 40B, for example compared with the structure which has not arrange | positioned 2nd partition 31Bb, 2nd wire penetration. When the electric wire 20 is inserted into the space 42 or the third electric wire insertion space 43, the second partition wall 31Bb is interposed between the second electric wire insertion space 42 and the third electric wire insertion space 43. It can avoid that the bent electric wires 20 contact.

  Therefore, since the number of the electric wires 20 inserted through the same space can be reduced, the insertion operation of inserting a large number of electric wires 20 into the sheath tube 30B can be performed smoothly.

Furthermore, as shown in FIG. 3, the sheath tube 30B not only corresponds to the combination in which the four electric wires 20 are classified into two types of the high-voltage wires 20H and the low-voltage wires 20L, but also the magnitude of the flowing current. That is, according to the magnitude of the rated current, for example, the influence of electromagnetic noise can be prevented in correspondence with the combinations classified into three types of the high-voltage wire 20H, the medium- voltage wire 20M, and the low-voltage wire 20L.

Specifically, by inserting the low-voltage wire 20L through the first wire insertion space 41, the first partition wall 31Ba can prevent the influence of electromagnetic noise generated from the medium- voltage wire 20M and the high-voltage wire 20H. Further, by inserting the intermediate pressure wire 20M to the second electrical wire insertion space 42, the second partition wall 31Bb, it is possible to prevent the influence of electromagnetic noise generated from the high-pressure wires 20H.

  Therefore, even if a plurality of electric wires 20 having different rated current bands are mixed and arranged in the same route, they are not affected by electromagnetic noise. Therefore, all the electric wires 20 inserted through the sheath tube 30B are not shielded wires. It is possible to achieve non-shielding.

(Third embodiment)
As shown in FIGS. 4A, 4B, and 4C, the wire harness 10C according to the third embodiment is a non-bending type sheath tube forming portion 30X in which the sheath tube 30C is configured by a linear aluminum alloy pipe. And the bendable sheath tube constituent portion 30Y that can be bent, and the non-flexible sheath tube constituent portion 30X and the bent sheath tube constituent portion 30Y are connected in series along the tube axis direction X to achieve the above-mentioned conformity. is it work in shape.
4A shows a side view of a part of the wire harness 10C in the tube axis direction X, FIG. 4B shows an end view taken along line BB in FIG. 4A, and FIG. ) Shows an end view taken along the line CC in FIG.

  As shown in FIGS. 4 (a) and 4 (c), the bendable sheath tube forming portion 30Y is configured by integrally forming an aluminum sheath tube main body 32B and a partition wall 31B with a braid 61 of a metal wire, and the tube shaft of the bent portion. Both end portions in the direction X are connected to the non-bending type sheath tube forming portion 30X.

  With the above configuration, the bendable sheath tube constituent portion 30Y can be provided with flexibility while ensuring a shielding function against electromagnetic noise. The wire harness 10C can be arranged in a conforming shape according to the uneven shape at the mounting position by arranging the wire harness 10C according to the bending angle of the bent portion.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The metal material corresponds to the aluminum alloy material ,
The high-voltage wire corresponds to the high-voltage wire 20H,
Although the low-voltage electric wire corresponds to the low-voltage electric wire 20L , the present invention is not limited to the above-described embodiment, and can be configured in various embodiments.

  For example, the partition wall is not limited to being arranged in the wire insertion space in the form, position, and number as described above, but can be arranged in the wire insertion space in various forms, positions, and numbers. It can be divided into various forms, positions, and numbers of spaces.

Specifically, according to the magnitude of the rated current, that is, according to the ease of generation of electromagnetic noise, for example, in the first and third embodiments, the high-voltage wires 20H and the low-voltage wires In the second embodiment, examples classified into three types of high-voltage wires 20H, medium- voltage wires 20M, and low-voltage wires 20L have been described. The partition is not limited to the examples classified into the types or less, and may be arranged in any number of four or more types, and the partition walls may be arranged in the wire insertion space so as to isolate a plurality of electric wires for each combination of the classified wires.
In addition, you may arrange | position a partition in an electric wire penetration space so that the some electric wire which consists of comparable rated current may be divided from each other.

  Further, the sheath tube is not limited to the configuration in which the partition wall and the sheath tube main body are integrated as in the first to third embodiments. For example, the sheath tube is in the tube axial direction X and the thickness with respect to the sheath tube body. The partition wall may be detachable with respect to the sheath tube main body by inserting and removing in the direction T or the width direction W. In this case, the attachment position of the partition wall with respect to the sheath tube body can be changed, It is good also as a structure which can change the form of the space divided by changing the attachment position of a partition, a position, and a number.

  Furthermore, the sheath tube is not limited to an aluminum alloy as long as it has a shielding function against electromagnetic noise, and can be formed of various materials. For example, other metal materials such as stainless steel may be used, and further, for example, those formed by mixing a powdered metal into a synthetic resin are included.

  Further, the sheath tube is not limited to the configuration in which the partition wall 31 and the sheath tube main body 32 are integrally configured by the metal wire braid 61 as in the bent sheath tube configuration portion 30Y described in the third embodiment. A sheath tube in which only one of the sheath tube body and the sheath tube body is configured by the braided body 61 may be used.

  Furthermore, the sheath tube having a configuration in which at least one of the partition wall and the sheath tube main body is configured by the braided body 61 of the metal wire is in the tube axis direction like the bent sheath tube configuration portion 30Y described in the third embodiment. The configuration is not limited to the bent portion of X. For example, it can be configured in various forms over the straight portion in the tube axis direction X or over the entire length.

Further, the sheath tube main body is limited to the sheath tube bodies 32 and 32B having a configuration in which an orthogonal cross section orthogonal to the tube axis direction X is formed by an oblong cross section as in the first to third embodiments. For example, it can be formed with orthogonal cross sections having various shapes such as an elliptical shape, a circular shape, and a polygonal shape. In the case of a polygonal shape, for example, a triangular shape, a quadrangular shape, and the like can be given, and in the case of a quadrangular shape, a rhombus shape may be used.
The sheath tube main body 32 is not limited to the constant orthogonal cross section along the tube axis direction, and the orthogonal cross section may be deformed in the tube axis direction.

10A, 10B, 10C ... wire harness 30, 30B, 30C ... sheath tube 32, 32B ... sheath tube body 31, 31B ... partition wall 31Ba ... first partition wall 31Bb ... second partition wall 20 ... electric wire 20H ... high voltage wire 20L ... for low pressure Electric wires 40, 40B ... Electric wire insertion space 40H ... High voltage insertion space 40L ... Low voltage insertion space 41 ... First electric wire insertion space 42 ... Second electric wire insertion space 43 ... Third electric wire insertion space 61 ... Braid X ... Tube Axial direction W ... Width direction T ... Thickness direction

Claims (4)

A sheath tube that is formed of a shield member for blocking electromagnetic noise and has a wire insertion space inside the sheath tube body that allows insertion of a plurality of wires,
A high-voltage insertion space that allows insertion of a high-voltage wire that generates electromagnetic noise in a cross-section orthogonal to the tube axis direction in the wire insertion space, and a low-voltage wire that has a lower rated current than the high-voltage wire Partitioning into a low-voltage insertion space that allows insertion of the high-voltage electric wire and the low-voltage electric wire is formed in the electric wire insertion space along the tube axis direction,
The orthogonal cross section of the electric wire insertion space is configured in a cross-sectional form that allows parallel arrangement of a plurality of electric wires, and at least one insertion space of the high voltage insertion space and the low voltage insertion space, A plurality of the wires having the same rated current according to the corresponding insertion space are configured to be arranged in parallel,
In the orthogonal cross section of the wire insertion space,
The partition is formed in a straight line along a direction coinciding with a thickness direction orthogonal to the arrangement direction of the wires,
The partition configured by the shield member and the sheath tube main body are integrally configured,
The partition is disposed only between the high voltage insertion space and the low voltage insertion space ,
The sheath tube, wherein the at least one insertion space is configured as a non-isolation space in which the electric wires having the same rated current are not separated by the partition wall . The sheath tube according to claim 1, wherein the shield member is formed of a metal material. The sheath tube according to claim 1 , wherein the partition wall is configured by a braided article. A sheath tube according to any one of claims 1 to 3 ,
A high electrostatic pressure electric wire is inserted into the high-voltage insertion space in said sheath tube,
Constituted by a low electrostatic pressure wire is inserted into the low voltage through the space in the sheath pipe,
Wire harness constituting said low electrostatic pressure wire at low pressure for unshielded cable.

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