JP6448018B2 - Wire harness - Google Patents

Description

  The present invention relates to a wire harness including a plurality or a plurality of circuit conductive paths and an exterior member that is inserted and protected through the conductive paths. Specifically, the exterior member is formed into a single tubular shape by resin molding. In addition, the present invention relates to a wire harness having one or a plurality of locations that are irregular in the tube axis direction.

  As a conventional wire harness, for example, one that electrically connects high-voltage devices mounted on a hybrid vehicle or an electric vehicle is known. Looking at trends in recent years, wire harnesses having a configuration and structure that take into account the wiring space are adopted.

  The wire harness disclosed in the following Patent Document 1 includes a conductive path and a synthetic resin exterior member for protecting the conductive path. The wire harness is characterized by the exterior member and has an effective structure when routed in a narrow space or a three-dimensional complicated space.

JP 2013-211963 A

  The exterior member of the wire harness disclosed in Patent Document 1 includes a bellows tube portion having a round cross section (or flat shape) and a straight tube portion having a flat cross section, and these round bellows tube portions and a flat shape. It is formed into a single tubular body by resin molding so that the straight pipe portion is continuous. Therefore, if such an exterior member is employed, the wire harness can be arranged by arranging a flat straight pipe portion even in a narrow space. Moreover, even if it is a three-dimensional complicated space etc., if a round (or flat) bellows tube part is arrange | positioned, wiring of a wire harness will be attained.

  By the way, when the portion of the bellows tube portion is viewed, since this portion has a uniform cross-sectional shape, there is a problem in that it becomes difficult to cope with the difference in the routing space between the portions. In addition, since the cross-sectional shape is uniform, there is a problem that it is difficult to cope with it when trying to exhibit different bending performance.

  Therefore, the inventor of the present application tried to change the cross-sectional shape of the bellows tube portion, for example, in order to solve the above problems. However, it has been found that there is a problem that the shape of the changed portion becomes distorted, or the changed portion itself has flexibility, so that the bending performance before and after this becomes unstable.

  This invention is made | formed in view of an above-described situation, and makes it a subject to provide the wire harness which can respond even if routing space differs in a site | part. It is another object of the present invention to provide a wire harness that can exhibit different bending performances in a stable state.

In order to solve the above-mentioned problem, the present invention according to claim 1 is a wire harness including a plurality of or a plurality of circuit conductive paths and an exterior member that is inserted and protected through the conductive paths. Is formed into a single tubular body shape by resin molding and has one or more locations that are deformed in the tube axis direction. The deformed portions are the first deformed tube portion and the first deformed tube portion. A second deformed tube portion that is deformed with respect to the deformed tube portion, and a shape converting portion that connects the first deformed tube portion and the second deformed tube portion, the shape converting portion in the tube axis direction. It is formed as a part that extends a predetermined length and straightens the arrangement state, and the shape conversion part has a main part as a part for changing the shape, and a first connecting pipe part is formed at one end of the main part. And connecting the first deformed pipe part via the first connecting pipe part, or the other end of the main body part. Form a second connecting pipe part and connect the second deformed pipe part via the second connecting pipe part, or form the first connecting pipe part at one end of the main body part and connect the first connecting pipe part. And connecting the first deformed pipe part, forming the second connecting pipe part at the other end of the main body part, connecting the second deformed pipe part via the second connecting pipe part, and the first connecting pipe. the part and the second connecting pipe portion respectively of the outer surface, the two reinforcing portions at predetermined intervals is formed in the tube axis direction, characterized in Rukoto.

  Moreover, the present invention according to claim 2 is the wire harness according to claim 1, wherein the deformed shape is any one or two of a difference in cross-sectional shape, a difference in size, and a difference in direction due to twisting. It is the above combination.

Further, the invention of claim 3, in the wire harness according to claim 1 or 2, portion which becomes the profiled is in the range of parts that allow bending cabling state has flexibility It is formed in the inside.

  According to the present invention having the above-described features, even if the routing space differs depending on the site, for example, a partially narrow space exists, it is only necessary to correspond to a location where the exterior member is deformed. Further, according to the present invention, for example, when different bending performances are to be exhibited in a stable state, a location that is an irregular shape of the exterior member may correspond to the location to be exhibited. Furthermore, according to the present invention, it is only necessary to change the shape, size, and orientation to form a portion having an irregular shape. That is, the first deformed tube portion and the second deformed tube portion having different shapes, sizes, and orientations may be formed.

According to the first aspect of the present invention, since the exterior member having one or a plurality of locations that are deformed in the tube axis direction is adopted, if the locations that are deformed are arranged at desired positions, the arrangement is made. Even if the space differs depending on the part, for example, even if a narrow space exists partially, the wire harness can be routed. In addition, according to the present invention, since a structure in which the shape converting portion is disposed between the first deformed tube portion and the second deformed tube portion is employed with respect to the portion that is deformed, for example, the first deformed tube portion side When trying to exhibit different bending performance on the second deformed tube side, the conductive path can be fixed at the shape conversion part, and as a result, different bending characteristics before and after the shape conversion part can be stabilized. There is an effect that it can be exhibited.
In addition, according to the present invention, the shape converting portion in the deformed portion has a main body portion that is formed as a portion that converts the shape between the first deformed tube portion and the second deformed tube portion. If the first connecting pipe part is continuously formed at one end of the main body part, and the first deformed pipe part is connected via the first connecting pipe part, it is possible to convert the smooth shape accordingly. There is an effect that can be done.
Further, according to the present invention, the second connecting pipe part is continuously formed at the other end of the main body part in the shape converting part, and the second deformed pipe part is connected via the second connecting pipe part. As a result, the smooth shape can be converted.
Moreover, according to this invention, while forming a 1st connecting pipe part continuously in the end of the main-body part in a shape conversion part, and connecting a 1st deformed pipe part via this 1st connecting pipe part, a shape conversion part If the second connecting pipe part is continuously formed at the other end of the main body part and the second deformed pipe part is connected via the second connecting pipe part, the smooth shape is converted accordingly. There is an effect that can be.

  According to the second aspect of the present invention, the shape, size, and orientation are changed to form a deformed portion on the exterior member, so that a wire harness with consideration for the wiring space is provided. There is an effect that can be.

According to the third aspect of the present invention, there is an effect that different bending performances can be exhibited in a stable state within the range of the portion where the arrangement state can be bent.

It is a schematic diagram which shows the wiring state of the wire harness of this invention (Example 1). It is a top view which shows the structure of a wire harness (Example 1). It is sectional drawing of a wire harness, (a) is the sectional view on the AA line of FIG. 2, (b) is the sectional view on the BB line of FIG. 2 (Example 1). (Example 1) which is the perspective view of the location corresponding to the arrow C of the exterior member of FIG. 5 is a cross-sectional view of the exterior member of FIG. 4, (a) is a cross-sectional view taken along line EE, (b) is a view of FIG. 4 as viewed from arrow F, and (c) is a view of FIG. (Example 1). (A) is a perspective view of the location corresponding to the arrow D of the exterior member of FIG. 2, (b) is a figure of the modification of (a) (Example 1). FIG. 10 is a cross-sectional view illustrating a first modification of the exterior member in FIG. 3 (Example 2). FIG. 10 is a cross-sectional view illustrating a second modification of the exterior member in FIG. 3 (Example 3). It is sectional drawing which shows the wire harness which becomes another example (Example 4). It is sectional drawing which shows the various modifications with respect to the location used as the unusual shape of FIG. 5 (Example 5).

  The wire harness employs an exterior member having the following locations within a range of a portion that has flexibility and allows the arrangement state to be bent. That is, an exterior member having one or a plurality of locations that are irregularly shaped in the tube axis direction is adopted as a location that can be dealt with even if the routing space differs depending on the location. The deformed portion includes a first deformed tube portion, a second deformed tube portion that is deformed with respect to the first deformed tube portion, and a shape converting portion that connects the first deformed tube portion and the second deformed tube portion. The shape conversion part is formed as a part that extends in the tube axis direction by a predetermined length and straightens the arrangement state. The portion having an irregular shape is formed by changing the shape, size, and orientation of the first deformed tube portion and the second deformed tube portion.

  Embodiment 1 will be described below with reference to the drawings. FIG. 1 is a schematic view showing a wiring state of the wire harness of the present invention. FIG. 2 is a plan view showing the configuration of the wire harness. 3 is a cross-sectional view of the wire harness, (a) is a cross-sectional view taken along line AA of FIG. 2, and (b) is a cross-sectional view taken along line BB of FIG.

  4 is a perspective view of a portion corresponding to the arrow C of the exterior member of FIG. 5 is a cross-sectional view of the exterior member of FIG. 4, (a) is a cross-sectional view taken along line EE, (b) is a view of FIG. 4 as viewed from arrow F, and (c) is an arrow of FIG. It is the figure seen from G. Further, FIG. 6A is a perspective view of a portion corresponding to the arrow D of the exterior member of FIG. 2, and FIG. 6B is a diagram of a modified example of FIG.

  In the present embodiment, the present invention is applied to a wire harness routed in a hybrid vehicle (which may be an electric vehicle or a general vehicle).

  In FIG. 1, reference numeral 1 indicates a hybrid vehicle. The hybrid vehicle 1 is a vehicle that mixes and drives two powers of an engine 2 and a motor unit 3, and the motor unit 3 is supplied with electric power from a battery 5 (battery pack) via an inverter unit 4. . The engine 2, the motor unit 3, and the inverter unit 4 are mounted in the engine room 6 where the front wheels and the like are located in the present embodiment. Further, the battery 5 is mounted on the rear part 7 of the vehicle where there is a rear wheel or the like (it may be mounted in a vehicle room existing behind the engine room 6).

  The motor unit 3 and the inverter unit 4 are connected by a high-voltage wire harness 8. The battery 5 and the inverter unit 4 are also connected by a high-voltage wire harness 9. In the wire harness 9, the intermediate portion 10 is routed under the vehicle floor 11. Further, they are routed substantially parallel along the vehicle floor 11. The vehicle underfloor 11 is a known body and a so-called panel member, and a through hole is formed at a predetermined position. The wire harness 9 is inserted into the through hole in a watertight manner.

  The wire harness 9 and the battery 5 are connected via a junction block 12 provided in the battery 5. The rear end 13 of the wire harness 9 is electrically connected to the junction block 12 by a known method. The front end 14 side of the wire harness 9 is electrically connected to the inverter unit 4 by a known method.

  The motor unit 3 includes a motor and a generator in its configuration. The inverter unit 4 includes an inverter and a converter in its configuration. The motor unit 3 is formed as a motor assembly including a shield case. The inverter unit 4 is also formed as an inverter assembly including a shield case. The battery 5 is of Ni-MH or Li-ion type and is modularized. It is assumed that a power storage device such as a capacitor can be used. The battery 5 is not particularly limited as long as it can be used for the hybrid vehicle 1 and the electric vehicle.

  In FIG. 2, a wire harness 9 according to the present invention is provided at an exterior member 15, a high-voltage conductive path 16 (conductive path) accommodated and protected by the exterior member 15, and the front end 14 and the rear end 13 which are harness terminals. A shield connector 17, a boot 18 provided at the front end 14 and the rear end 13, a plurality of clamps (fixed members; not shown) attached to the outer surface of the exterior member 15, and a watertight attachment to the outer surface of the exterior member 15. And a grommet (water-stop member, not shown).

  The wire harness 9 may be configured and structured such that the low voltage conductive path is housed and protected by the exterior member 15 together with the high voltage conductive path 16.

  The exterior member 15 is formed into a single straight tube shape by resin molding (it is straight before use). Such an exterior member 15 includes a flexible arrangement range (bending arrangement ranges 19 and 19), a straight arrangement area (straight arrangement area 20), a boot An attachment range 21 is set (the range setting in the figure is an example).

  In the exterior member 15, irregularly shaped portions 22 and 22 that are characteristic portions of the present invention are formed in the ranges set as the bending arrangement ranges 19 and 19.

  In the bending arrangement range 19, flexible tube portions 23 and 24 having flexibility are formed. The flexible tube portions 23 and 24 are formed in a shape that is irregular in the tube axis direction. In such a bending arrangement range 19, a portion connecting the flexible tube portions 23 and 24 and the periphery thereof correspond to the portion 22 having the deformed shape. The deformed portion 22 includes a first deformed tube portion 25, a second deformed tube portion 26, and a shape converting portion 27. In this embodiment, the flexible tube portion 23 corresponds to the first deformed tube portion 25, and the flexible tube portion 24 corresponds to the second deformed tube portion 26.

  On the other hand, a straight pipe portion 28 is formed in the straight routing range 20 as a portion to be routed straight. The straight routing range 20 is formed in a shape that forms the straight pipe portion 28 as a whole. The boot attachment range 21 is also formed in a shape that becomes the straight pipe portion 29.

  Each part of the exterior member 15 will be described in detail below.

  The flexible tube portions 23 and 24 are formed as flexible portions as described above. The flexible tube portions 23 and 24 are arranged at positions matching the vehicle mounting shape (the shape of the wire harness wiring destination, the shape of the fixed object). Moreover, the flexible tube parts 23 and 24 are also formed in a length according to the vehicle mounting shape (the length is not constant, and each is formed with a necessary length according to the vehicle mounting shape). Such flexible tube portions 23 and 24 are bent at a desired angle when the wire harness 9 is packed, transported, or routed to the vehicle. The flexible tube portions 23 and 24 can be bent to have a bent shape, and are naturally formed so as to be able to return to a straight original state (the state at the time of resin molding) as illustrated.

  The flexible tube portions 23 and 24 are formed in a bellows tube shape in this embodiment (the shape is not particularly limited as long as it has flexibility). Specifically, the concave portions 30 and the convex portions 31 in the circumferential direction are provided, and the concave portions 30 and the convex portions 31 are formed alternately and continuously in the tube axis direction.

  Although not particularly shown in the present embodiment, it is configured to have a flexible tube portion that is bent at the time of route routing and a flexible tube portion that is bent including the packaging state of the wire harness 9 and at the time of transportation. It shall be good. In addition, even if it is a portion that does not need to bend at the time of route routing, a flexible tube portion can be formed if necessary at the time of packing and transportation.

  The exterior member 15 is formed in a shape in which the flexible tube portions 23 and 24 become corrugated tubes in this embodiment. That is, the corrugated tube is partially formed into a shape. Thus, since the exterior member 15 has a corrugated tube portion, it can be referred to as a “cortube” or a “partially formed corrugated tube”.

  In the present embodiment, the exterior member 15 is formed in a shape in which no slit is provided along the tube axis direction (no belly). The reason why the slit is not provided is that water is prevented from entering the exterior member 15 to improve waterproofness. In addition, for example, the high voltage conductive path 16 is not protruded at the bent portion. Furthermore, the point which aims at the rigidity improvement of exterior member 15 itself is also mentioned. In addition, the exterior member 15 is also formed in a shape having no circumferential seam. The reason is the same as that of the slit.

  The exterior member 15 may be formed in a shape that can be divided at a predetermined position as long as the above-described points can be satisfied. In this case, they are integrated by adhesion, welding, or a retrofitting member for connection.

  The straight tube portions 28 and 29 are formed as portions having no flexibility such as the flexible tube portions 23 and 24. The straight pipe portions 28 and 29 are also formed as a portion that does not bend during packing, transportation, or route routing (the portion that does not bend means a portion that does not actively have flexibility). is there). The straight pipe portion 28 is formed in a long straight pipe shape. On the other hand, the straight pipe portion 29 is formed in a short straight pipe shape. Accordingly, the straight tube portions 28 and 29 can be called “straight tube portions” or the like (also called “non-flexible tube portions” or the like).

  The straight tube portions 28 and 29 are formed in a rigid portion as compared with the flexible tube portions 23 and 24. The straight pipe portion 28 is formed at a position and a length that match the vehicle mounting shape. In this embodiment, the straight pipe portion 28 is formed so as to be disposed under the vehicle floor 11 (see FIG. 1). Since the straight pipe portion 28 is disposed under the vehicle floor 11, the straight pipe portion 28 is formed in a shape that can earn a distance from the ground. Specifically, it is formed in an oval cross section (may be elliptical, preferably flat). The straight pipe portion 28 is formed so as to be able to follow, for example, the lean hose under the vehicle floor 11.

  Since it can be said that the straight pipe portion 28 is long and has rigidity, the straight pipe portion 28 itself can regulate the path of the wire harness 9 without using a path regulating member such as a protector.

  On the other hand, the straight pipe portion 29 is formed in a position and a length according to the attachment of the boot 18. Explaining in more detail with reference to FIGS. 2 and 6, the boot 18 is attached to the straight pipe portion 29. Accordingly, the straight tube portion 29 is formed in a circular cross section in consideration of the adhesiveness (watertightness) of the boot 18 and the moldability of the boot 18. The straight pipe portion 29 is formed in a shape having a smooth outer surface in FIG. As shown in FIG. 6B, a retaining portion 32 is effective as a shape for preventing the boot 18 from slipping out. The retaining portion 32 is formed in an annular portion that slightly protrudes the outer surface of the straight tube portion 29 (this is an example. The shape is not particularly limited as long as the shape can prevent the retaining portion 32). Two retaining portions 32 are formed at a predetermined interval in the tube axis direction.

  The two retaining portions 32 are effective as portions that hinder intrusion even if moisture is about to enter from the outside. The retaining portion 32 of this embodiment is also effective as a portion that increases the rigidity of the straight tube portion 29. Needless to say, the straight pipe portion 29 that is difficult to deform contributes to prevention of moisture intrusion.

  In FIG. 2 to FIG. 5, the portion 22 having a deformed shape includes the first deformed tube portion 25, the second deformed tube portion 26, and the shape converting portion 27 as described above. The first deformed tube portion 25 corresponds to the flexible tube portion 23, and the second deformed tube portion 26 corresponds to the flexible tube portion 24. The first deformed tube portion 25 and the second deformed tube portion 26 are formed in a deformed shape. The shape converting portion 27 is formed as a portion connecting the first deformed tube portion 25 and the second deformed tube portion 26. In addition, the shape converting portion 27 is formed as a portion whose shape is changed from the first deformed tube portion 25 to the second deformed tube portion 26 (from the second deformed tube portion 26 to the first deformed tube portion 25). Further, the shape converting portion 27 is formed as a portion extending in a predetermined length in the tube axis direction to straighten the arrangement state of the wire harness 9 in this portion.

  The first deformed tube portion 25 is formed in a bellows tube shape. The first deformed tube portion 25 is formed in a circular cross section. That is, the first deformed tube portion 25 is formed in a circular corrugated tube. Since the first deformed tube portion 25 has the above shape, it can be bent in various directions. The first deformed tube portion 25 is disposed and formed so that one end thereof is continuous with a first connecting tube portion 34 described later of the shape converting portion 27. Further, the other end of the first deformed tube portion 25 is arranged and formed so as to be continuous with the straight tube portion 29. The first modified pipe portion 25 is formed so as to have a minimum necessary internal space (circular internal space) when passing through the high-voltage conductive path 16.

  The second deformed tube portion 26 is formed in a bellows tube shape. The second deformed tube portion 26 is formed to be deformed with respect to the first deformed tube portion 25. In this embodiment, the cross section is formed in an oval shape. That is, the second deformed tube portion 26 is formed in a flat corrugated tube. Since the second deformed tube portion 26 has the above-described shape, unlike the first deformed tube portion 25, the second deformed tube portion 26 is formed in a shape that makes bending in a predetermined direction slightly difficult. The second deformed tube portion 26 is arranged and formed so that one end thereof is continuous with the other end of the shape converting portion 27 described later. Further, the other end of the second deformed tube portion 26 is disposed and formed so as to be continuous with the straight tube portion 28. The second modified pipe portion 26 is formed so as to have a minimum necessary internal space (oval-shaped internal space) when passing through the high-voltage conductive path 16.

  Unlike the first deformed tube portion 25 and the second deformed tube portion 26, the shape converting portion 27 is formed in a shape that is not a bellows tube. That is, it is formed in a non-bellows tube shape. The shape conversion part 27 is formed so as to have the same function as the straight pipe parts 28 and 29.

  In the present embodiment, the shape conversion unit 27 is formed in the illustrated shape having the main body 33 and the first connecting pipe 34. The main body portion 33 is formed as a portion whose shape is changed between the first deformed tube portion 25 and the second deformed tube portion 26. As can be seen from the drawings, the shape of the main body 33 in this embodiment is a shape obtained by crushing one end of the tube to a relatively short straight tube so as to have an oval cross section. It can be said that the tube is gradually crushed from the tube having a circular cross section to become a tube having an elliptical cross section.

  The first connecting pipe part 34 is a relatively short straight pipe part for connecting the first deformed pipe part 25, and is formed to be continuous with one end of the main body part 33. The first connecting pipe portion 34 is formed in a circular cross section. Two reinforcing portions 35 are formed on the outer surface of the first connecting pipe portion 34 at a predetermined interval. The reinforcing portion 35 is formed in an annular portion that slightly protrudes the outer surface of the first connecting pipe portion 34. The first connecting pipe portion 34 is formed as a portion for converting a smooth shape between the first deformed tube portion 25 and the second deformed tube portion 26. In the present embodiment, the second deformed tube portion 26 is directly coupled to the other end of the main body portion 33 (an example is given. Other examples will be described later with reference to FIG. 10).

  In the present embodiment, the irregular portion 22 is formed so as to be converted from a cross-sectional circle shape having a height to a cross-sectional oval shape having a low height.

  In FIG. 3, the high-voltage conductive path 16 accommodated and protected by the exterior member 15 as described above includes two high-voltage circuits 36, a shield member 37 that covers the two high-voltage circuits 36, and an outer side of the shield member 37. And a sheath 38 provided (one example. For example, the sheath 38 may not be included).

  The high-voltage circuit 36 is a known high-voltage electric wire here, and includes a conductor 39 and an insulator 40 that covers the conductor 39. The high voltage circuit 36 is formed to have a length necessary for electrical connection. The high voltage circuit 36 is formed in a long shape because the wire harness 9 electrically connects the inverter unit 4 and the battery 5 (junction block 12) (see FIG. 1).

  The conductor 39 is made of copper or copper alloy, or aluminum or aluminum alloy. The conductor 39 has a conductor structure in which strands are twisted together or a rod-like conductor structure having a rectangular or round cross section (for example, a conductor structure having a flat single core or a single round core, in this case, the wire itself It may be any of those having a rod shape. An insulator 40 made of an insulating resin material is extruded on the outer surface of the conductor 39 as described above.

  In addition, although the structure of a well-known high voltage electric wire is employ | adopted as a high voltage circuit 36 in a present Example, it shall not be this limitation. That is, a known bus bar provided with an insulator to form a high voltage circuit may be employed.

  The insulator 40 is extruded on the outer peripheral surface of the conductor 39 using a thermoplastic resin material. The insulator 40 is formed as a cover having a circular cross section. The insulator 40 is formed with a predetermined thickness. As the thermoplastic resin, various known types can be used, and are appropriately selected from polymer materials such as polyvinyl chloride resin, polyethylene resin, and polypropylene resin.

  The shield member 37 is a member for electromagnetic shielding (shield member for electromagnetic waves) that collectively covers the two high-voltage circuits 36, and a known braid formed by knitting a number of strands into a cylindrical shape is adopted. The The shield member 37 is formed to have substantially the same length as the entire length of the two high-voltage circuits 36. The end of the shield member 37 is connected to a shield case or the like (not shown) of the inverter unit 4 (see FIG. 1) via the shield connector 17 (see FIG. 2). The shield member 37 may employ, for example, a conductive metal foil or a member including this metal foil as long as it can take countermeasures against electromagnetic waves.

  The sheath 38 is extruded on the outer peripheral surface of the shield member 37 using a thermoplastic resin material (a thermoplastic resin material similar to the insulator 40 is used). The sheath 38 is formed as a cover having an oval cross section. The sheath 38 is formed with a predetermined thickness. The sheath 38 is disposed at a position that is the outermost layer of the high-voltage conductive path 16. The sheath 38 is subjected to terminal processing so that the shield member 37 is exposed at a predetermined length in the manufacture of the wire harness 9. In addition, as a state after terminal processing, it will be in a state slightly longer than the exterior member 15, for example.

  As an example other than the high-voltage conductive path 16, a known shielded electric wire (see reference numeral 42 in FIG. 8) is given as an example. The number is one or more. In addition, a high-voltage coaxial composite conductive path (not shown) configured to have a plus circuit and a minus circuit on the same axis, or to have three or more circuits on the same axis, can be given as an example.

  In FIG. 3B, the outer surface of the high-voltage conductive path 16 is in surface contact with the flat inner surface of the exterior member 15 (because the shape is converted from a cross-sectional circle shape to a cross-sectional oval shape by the shape conversion unit 27). , The above flat inner surface is formed). The following effects can be achieved with respect to surface contact. That is, even if a relatively large amount of heat is generated by energizing the high-voltage conductive path 16, the heat is efficiently transferred to the exterior member 15 by the above-described surface contact, and is radiated from the outer surface of the exterior member 15. There is an effect.

  Returning to FIG. 2, a well-known shield connector 17 is employed. That is, a terminal fitting electrically connected to the terminal of the high-voltage circuit 36 (see FIG. 3), an insulating connector housing that accommodates the terminal fitting, a conductive shield shell provided outside the connector housing, The shield shell is configured to include a metal caulking ring for electrically connecting and fixing the end of the shield member 37 (see FIG. 3). The shield connector 17 having such a configuration is waterproofed by the boot 18.

  The boot 18 is a member for covering between the shield connector 17 and the exterior member 15 so as to prevent moisture from entering from the outside, and has flexibility. In the present embodiment, rubber boots 18 are employed (the material is an example. Any material that can provide waterproofness and flexibility) may be used. The boot 18 is formed in a shape that is in close contact with the shield connector 17 and the straight tube portion 29.

  If the boot 18 is not attached, it can be replaced by winding a waterproof tape.

  In the above configuration and structure, the wire harness 9 is manufactured as follows (not shown). That is, the wire harness 9 is manufactured by inserting the high-voltage conductive path 16 from one end of the exterior member 15 to the other end. Since the exterior member 15 before use is resin-molded in a straight state as a whole, the high-voltage conductive path 16 is inserted straight. That is, it is inserted smoothly. In addition, since the inner surface of the shape conversion part 27 is smooth even if the location 22 which becomes unusual shape exists, it is needless to say that it can insert smoothly.

  Further, the wire harness 9 is manufactured by providing a shield connector 17 at each end portion of the high-voltage conductive path 16. Further, the wire harness 9 is manufactured by attaching a clamp, a grommet, a boot 18 or the like to a predetermined position on the outer surface of the exterior member 15.

  After being manufactured as described above, the flexible tube portion 23 (24) at a predetermined position is folded and bent. When the packaging of the wire harness 9 is completed, the packaged wire harness 9 is in a compact state. The wire harness 9 is transported to the vehicle assembly site in a compact state.

  At the vehicle assembly site, the wire harness 9 is attached to the vehicle from a long portion corresponding to the vehicle underfloor 11, that is, from the straight routing range 20 (straight pipe portion 28) in the exterior member 15. Since the straight pipe portion 28 is disposed at a position corresponding to the vehicle underfloor 11, the wire harness 9 is attached in a state where bending is suppressed. At this time, the wire harness 9 is attached with good workability. After the straight pipe portion 28 is fixed to the vehicle lower floor 11 with a clamp or the like, the portions (flexible pipe portions 23 and 24) corresponding to the bending arrangement ranges 19 and 19 in the exterior member 15 are bent (bending). The rest is attached. When a series of operations related to attachment is completed, the wire harness 9 is routed along a desired route.

  As described above with reference to FIGS. 1 to 6, according to the wire harness 9, since the exterior member 15 having a plurality of locations 22 that are deformed in the tube axis direction is employed, the locations that are deformed If 22 is arranged at the position of the first embodiment, the wiring space differs depending on the part, for example, even if there is a partially narrow space (such as the vehicle underfloor 11 having a short distance to the ground in the first embodiment), the wire harness There is an effect that 9 arrangements can be made.

  Further, according to the wire harness 9, the first deformed shape is adopted because the shape changing portion 27 is disposed between the first deformed tube portion 25 and the second deformed tube portion 26 with respect to the deformed portion 22. When trying to exhibit different bending performances on the tube portion 25 side and the second deformed tube portion 26 side, the high-voltage conductive path 16 can be fixed by the shape converting portion 27. Therefore, by performing such fixing, there is an effect that different bending characteristics before and after the shape converting portion 27 can be exhibited in a stable state.

  In addition, the shape converting portion 27 in the irregularly shaped portion 22 has a main body portion 33 formed as a portion for converting the shape between the first deformed tube portion 25 and the second deformed tube portion 26, and Since the first connecting pipe portion 34 is connected to the main body portion 33, the first deformed pipe portion 25 is connected via the first connecting pipe portion 34. As a result, only the first connecting pipe portion 34 is provided. There is an effect that a smooth shape can be converted.

  Embodiment 2 will be described below with reference to the drawings. FIG. 7 is a cross-sectional view showing a first modification of the exterior member of FIG. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 7, a wire harness 9 'according to the present invention includes an exterior member 15' and a high-voltage conductive path 16 (conductive path) accommodated and protected by the exterior member 15 '. The exterior member 15 ′ is a resin molded product, and within the range set as the bending arrangement range 19 in such an exterior member 15 ′, a deformed portion 22 ′ that is a characteristic part of the present invention is formed. Is done.

  The irregularly shaped portion 22 ′ has a first deformed tube portion 25 ′, a second deformed tube portion 26 ′, and a shape converting portion 27 ′. The first deformed tube portion 25 'and the second deformed tube portion 26' are formed in a deformed shape in the tube axis direction. The shape converting portion 27 'is formed as a portion connecting the first deformed tube portion 25' and the second deformed tube portion 26 '. Further, the shape converting portion 27 'is a portion for converting the shape from the first deformed tube portion 25' to the second deformed tube portion 26 '(from the second deformed tube portion 26' to the first deformed tube portion 25 '). Formed as. Further, the shape converting portion 27 'is formed as a portion extending in a predetermined length in the tube axis direction to straighten the arrangement state of the wire harness 9' in this portion.

  Both the first deformed tube portion 25 ′ and the second deformed tube portion 26 ′ are formed in a bellows tube shape having an oval cross section. That is, the first deformed tube portion 25 'and the second deformed tube portion 26' are formed in a flat corrugated tube. The difference is that the size of the second deformed tube portion 26 'differs from the size of the first deformed tube portion 25' (the first deformed tube portion 25 'having a wider width and the second deformed tube portion having a smaller width). 26 '). On the other hand, unlike the first deformed tube portion 25 ′ and the second deformed tube portion 26 ′, the shape converting portion 27 ′ is formed in a shape that is not a bellows tube. That is, it is formed in a non-bellows tube shape (formed as a part that straightens the arrangement state).

  In the above-described configuration and structure, according to the wire harness 9 'of the second embodiment, the exterior member 15' having a portion 22 'that is deformed in the tube axis direction is adopted, and the shape is changed from a wide state to a narrow state. Is converted, the wiring harness 9 'can be routed even if the routing space varies depending on the site.

  Embodiment 3 will be described below with reference to the drawings. FIG. 8 is a cross-sectional view showing a second modification of the exterior member of FIG. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 8, a wire harness 9 ″ according to the present invention includes an exterior member 15 ″ and a high-voltage conductive path 16 (conductive path) accommodated and protected by the exterior member 15 ″. Is a resin molded product, and within the range set as the bending arrangement range 19 in such an exterior member 15 ″, an irregular shape portion 22 ″ that is a characteristic portion of the present invention is formed.

  The portion 22 ″ having a deformed shape includes a first deformed tube portion 25 ″, a second deformed tube portion 26 ″, and a shape converting portion 27 ″. The first deformed tube portion 25 ″ and the second deformed tube portion 26 ″ are formed in a deformed shape in the tube axis direction. The shape converting portion 27 ″ is formed as a portion connecting the first deformed tube portion 25 ″ and the second deformed tube portion 26 ″. The shape converting portion 27 ″ is also formed from the first deformed tube portion 25 ″ to the second deformed tube portion 25 ″. It is formed as a portion whose shape is changed to the deformed tube portion 26 ″ (from the second deformed tube portion 26 ″ to the first deformed tube portion 25 ″). Further, the shape converting portion 27 ″ is formed as a portion extending in a predetermined length in the tube axis direction to straighten the arrangement state of the wire harness 9 ″ in this portion.

  Both the first deformed tube portion 25 ″ and the second deformed tube portion 26 ″ are formed in a bellows tube shape having an oval cross section. That is, the first deformed tube portion 25 ″ and the second deformed tube portion 26 ″ are formed in a flat corrugated tube. The difference is that the second deformed tube portion 26 ″ is vertically elongated with respect to the horizontally long first deformed tube portion 25 ″ (an odd shape having the same size but different orientation). On the other hand, unlike the first deformed tube portion 25 ″ and the second deformed tube portion 26 ″, the shape converting portion 27 ″ is formed in a shape that is not a bellows tube. In Example 3, the shape converting portion 27 ″ is formed in a portion whose shape is changed by twisting.

  In the above-described configuration and structure, according to the wire harness 9 ″ of the third embodiment, if the exterior member 15 ″ having a portion 22 ″ that is deformed in the tube axis direction is adopted and the shape is converted from horizontally long to vertically long, Even if the routing space differs depending on the site, the wiring harness 9 ″ can be routed.

  Embodiment 4 will be described below with reference to the drawings. FIG. 9 is a cross-sectional view showing another example of a wire harness.

  In FIG. 9, here, a high-voltage wire harness 8 that electrically connects the motor unit 3 and the inverter unit 4 (see FIG. 1) is taken as an example. The wire harness 8 is also referred to as a motor cable, and includes a resin exterior member 41 and three shielded electric wires 42 (conductive paths) accommodated and protected by the exterior member 41. The exterior member 41 has an irregularly shaped portion 43 that is a characteristic part of the present invention.

  The deformed portion 43 includes a first deformed tube portion 44, a second deformed tube portion 45, and a shape converting portion 46. The first deformed tube portion 44 and the second deformed tube portion 45 are formed in a deformed shape in the tube axis direction. The shape converting portion 46 is formed as a portion connecting the first deformed tube portion 44 and the second deformed tube portion 45. Moreover, the shape conversion part 46 is formed as a part which changes a shape from the 1st deformed pipe part 44 to the 2nd deformed pipe part 45 (from the 2nd deformed pipe part 45 to the 1st deformed pipe part 44). Further, the shape converting portion 46 is formed as a portion extending in a predetermined length in the tube axis direction to straighten the arrangement state of the wire harness 8 in this portion.

  The first deformed tube portion 44 is formed in a bellows tube shape having a circular cross section. That is, the first deformed tube portion 44 is formed in a circular corrugated tube. The second deformed tube portion 26 is formed in a bellows tube shape having an oval cross section. That is, the second deformed tube portion 26 is formed in a flat corrugated tube. On the other hand, unlike the first deformed tube portion 44 and the second deformed tube portion 45, the shape converting portion 46 is formed in a shape that is not a bellows tube. That is, it is formed in a non-bellows tube shape (formed as a part that straightens the arrangement state). In the fourth embodiment, the shape conversion unit 46 is formed so that the shape can be converted in the same manner as in the first embodiment.

  The shield electric wire 42 includes a conductor 47, an insulator 48 that covers the conductor 47, a shield member 49 that covers the insulator 48, and a sheath 50 that is provided outside the shield member 49. A well-known shield wire 42 is used (an example).

  In the said structure and structure, according to the wire harness 8 of Example 4, there exists an effect that it can be arranged even if the arrangement space differs in the part similarly to Example 1.

  Embodiment 5 will be described below with reference to the drawings. FIG. 10 is a cross-sectional view showing various modified examples of the part having the deformed shape in FIG. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 10A, a portion 51 having a deformed shape includes a first deformed tube portion 25, a second deformed tube portion 26, and a shape converting portion 52. The shape conversion unit 52 includes only the main body 33 similar to that of the first embodiment. That is, the first deformed tube portion 25 is formed to be continuous with one end of the main body portion 33, and the second deformed tube portion 26 is formed to be continuous with the other end of the main body portion 33. Needless to say, it is effective to employ such an irregular portion 51.

  In FIG. 10 (b), a portion 53 having a deformed shape includes a first deformed tube portion 25, a second deformed tube portion 26, and a shape converting portion 54. The shape conversion unit 54 includes a main body unit 33 similar to that in the first embodiment and a second connecting pipe unit 55. That is, the first deformed tube portion 25 is formed to be continuous with one end of the main body portion 33, and the second deformed tube portion 26 is continuous with the second connecting tube portion 55 interposed at the other end of the main body portion 33. Formed as follows. Of course, it is also effective to employ such a deformed portion 53.

  In addition, although not particularly illustrated, a structure in which the first connecting pipe portion 34 (see FIG. 5) is interposed at one end of the main body portion 33 and the second connecting pipe portion 55 is also interposed at the other end of the main body portion 33. It is also effective to adopt the shape conversion section.

  It goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Hybrid vehicle, 2 ... Engine, 3 ... Motor unit, 4 ... Inverter unit, 5 ... Battery, 6 ... Engine room, 7 ... Car rear part, 8, 9 ... Wire harness, 10 ... Middle part, 11 ... Under vehicle floor, DESCRIPTION OF SYMBOLS 12 ... Junction block, 13 ... Rear end, 14 ... Front end, 15 ... Exterior member, 16 ... High-voltage conductive path (conductive path), 17 ... Shield connector, 18 ... Boot, 19 ... Bending arrangement range (bending arrangement state) 20) Straight arrangement range, 21 ... Boot attachment range, 22 ... Locations with irregular shapes, 23, 24 ... Flexible tube portions, 25 ... First irregular tube portions, 26 ... Second irregular tube portions 27 ... Shape conversion part 28, 29 ... Straight pipe part 30 ... Concave part 31 ... Convex part 32 ... Retaining part 33 ... Main part 34 ... First connection Pipe part 35 ... Reinforcing part 36 ... High voltage circuit 37 ... Shield member 38 ... Sheath 39 ... Conductor 40 ... Insulator 41 ... Exterior member 42 ... Shielded wire (conducting path) 43 ... Deformed Location: 44: First deformed tube portion 45: Second deformed tube portion 46: Shape converting portion 47: Conductor 48: Insulator 49: Shield member 50: Sheath 51, 53: Location that is deformed 52, 54 ... shape conversion part, 55 ... second connecting pipe part

Claims (3)

In a wire harness including a plurality of or a plurality of circuit conductive paths and an exterior member that is inserted and protected through the conductive paths,
The exterior member is formed into a single tubular body shape by resin molding and has one or more locations that are irregular in the tube axis direction,
The deformed portion includes a first deformed tube portion, a second deformed tube portion that is deformed with respect to the first deformed tube portion, and a shape conversion that connects the first deformed tube portion and the second deformed tube portion. And
The shape conversion part is formed as a part that extends in a predetermined length in the tube axis direction and straightens the arrangement state ,
The shape conversion part has a main body part as a part for changing the shape, forms a first connecting pipe part at one end of the main body part, and connects the first deformed pipe part via the first connecting pipe part. Alternatively, a second connecting pipe part is formed at the other end of the main body part, and the second deformed pipe part is connected via the second connecting pipe part, or the first connecting pipe part is connected to one end of the main body part. And connecting the first deformed tube portion via the first connecting tube portion and forming the second connecting tube portion at the other end of the main body portion and the second deformed tube portion via the second connecting tube portion. Connect the pipes,
Wherein the first connecting pipe section and the second connecting pipe portion respectively of the outer surface, the wire harness, characterized in that two reinforcing portions at predetermined intervals in the tube axis direction Ru is formed. The wire harness according to claim 1,
The said abnormal shape is any one or a combination of two or more of a difference in cross-sectional shape, a difference in size, and a difference in direction due to twisting. In the wire harness according to claim 1 or 2,
The wire harness is characterized in that the deformed portion is formed within a range of a portion that is flexible and allows the arrangement state to be bent .

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