Harness connector and harness routing structure

Abstract

The objective is to provide harness connectors and harness routing structures that can suppress a decrease in flexibility even when using large-diameter wires carrying high currents. [Solution] The harness connector 20, which connects the vehicle-side harness 2 and the seat-side harness 3, which are composed of wire assemblies 10, is provided with a flat cable 20X in which a flat conductor 21X with a flat cross-section connected to the large-diameter wire 11X of the large-diameter wire assembly 10X is integrally covered with an insulating sheet 22X, a plurality of connecting wire assemblies 20Y in which the same number of connecting wires 21Y as the other wires 11Y are arranged in parallel in the vehicle width direction W, and the flat cable 20X and connecting wire assemblies 20Y are stacked in the thickness direction, and a braided tube 30 surrounds the stacked flat cable 20X and connecting wire assemblies 20Y, and among the connecting wire assemblies 20Y, the first diameter connecting wire assemblies 20Ya, which are large in diameter, are arranged outward Ro in the curvature direction.

Description

Technical Field

[0001] The present invention relates to a harness wiring structure for supplying power from a vehicle body side to a connected body provided on a slide body that slides with respect to a vehicle body such as a slide sheet, and a harness connector used for the harness wiring structure.

Background Art

[0002] In vehicles such as automobiles, for example, as shown in Patent Document 1, a connected body such as an electric accessory such as a drive motor of a power seat is mounted on a slide sheet that slides in the vehicle front-rear direction, and a harness wiring structure for supplying power from the vehicle body side to the seat side is provided.

[0003] Specifically, the harness wiring structure includes a vehicle body side harness routed on the vehicle body, a seat side harness routed on the slide sheet and connected to the connected body, and a harness connector that connects the vehicle body side harness and the seat side harness. The harness connector can supply power from the vehicle body side to the seat side while curving to follow the sliding of the slide sheet.

[0004] With the recent high functionality of slide sheets, the number of connected bodies such as electric devices and sensors mounted on slide sheets, such as seat heaters and ventilation, that is, the number of circuits, has increased, and accordingly, the number of connected harnesses has also increased. Therefore, a plurality of electric wires are arranged in parallel in the width direction to form a strip shape and laminated in the thickness direction to cope with the increase in the number of circuits.

[0005] In addition, since electric wires with a conductor cross-sectional area suitable for the current to be energized are provided, electric wires of a plurality of types of conductor cross-sectional areas are used. In particular, the electric wires constituting a circuit for energizing a large current such as a seat heater have a larger diameter. Therefore, the flexibility of the harness connector that curves and follows the sliding of the slide sheet in a predetermined direction of the slide sheet is reduced, and it may be difficult to smoothly follow the sliding of the slide sheet.

Prior Art Documents

[0006] [Patent Document 1] Japanese Patent Publication No. 2023-057586 [Overview of the project] [Problems that the invention aims to solve]

[0007] The purpose of this invention is to provide a harness connector and harness routing structure that can suppress a decrease in flexibility even when using large-diameter wires carrying high currents. [Means for solving the problem]

[0008] This invention comprises a vehicle-side harness routed to a vehicle body, a slide-side harness connected to a connected body provided on a slide body that slides in a predetermined direction relative to the vehicle body, and a harness connector connecting the vehicle-side harness and the slide-side harness. The harness connector is routed along the predetermined direction and has a curved portion that bends in the predetermined direction and curves in the thickness direction. The curved portion moves and follows the slide body as it slides in the predetermined direction. The direction in which the vehicle body and the slide body face each other is defined as the opposing direction, and the direction intersecting the predetermined direction and the opposing direction is defined as the width direction. The vehicle-side harness and the slide-side harness consist of at least three sets of wire assemblies, each composed of multiple wires with equal conductor cross-sectional areas arranged in parallel in the width direction, such that the conductor cross-sectional areas of the wires are of at least three different types. The harness assembly is provided, wherein the wire assembly composed of the wire with the largest conductor cross-sectional area among three or more sets of wire assemblies is designated as the large-diameter wire assembly, and the wire assemblies different from the large-diameter wire assembly among the three or more sets of wire assemblies are designated as other wire assemblies, and the harness assembly is provided, wherein the flat conductors with a flat cross-section connected to the wires of the large-diameter wire assembly are arranged at predetermined intervals in the width direction and are insulated flat cables, and the same number of connecting wires as the wires constituting the other wire assemblies are arranged in parallel in the width direction and are connected to each of the other wire assemblies, and the harness assembly is provided, wherein the first diameter connecting wire assembly, in which the connecting wires constituting the connecting wires are larger in diameter than the connecting wires constituting the other connecting wire assemblies, is arranged on the outer diameter of the curved portion.

[0009] Furthermore, this invention relates to a harness connector that connects a vehicle-side harness routed to a vehicle body and a slide-side harness connected to a connected body provided on a slide body that slides in a predetermined direction relative to the vehicle body, wherein the harness connector is routed along the predetermined direction and has a curved portion that is bent in the predetermined direction and curves in the thickness direction, and the curved portion moves and follows the slide body as it slides in the predetermined direction, the direction in which the vehicle body and the slide body face each other is defined as the opposing direction, and the direction that intersects the predetermined direction and the opposing direction is defined as the width direction, and the vehicle-side harness and the slide-side harness are provided with three or more sets of wire assemblies in which a plurality of wires with equal conductor cross-sectional areas are arranged in parallel in the width direction, such that the conductor cross-sectional areas of the wires constituting the set are at least three different types, The wire assembly comprising the wire with the largest conductor cross-sectional area among the more than one set of wire assemblies is designated as the large-diameter wire assembly, and the wire assemblies different from the large-diameter wire assembly among the three or more sets of wire assemblies are designated as other wire assemblies, and the flat conductors with a flat cross-section connected to the wires of the large-diameter wire assembly are arranged at predetermined intervals in the width direction, and an insulated flat cable, and the same number of connecting wires as the wires constituting the other wire assemblies are arranged in parallel in the width direction, and a plurality of connecting wire assemblies connected to each of the other wire assemblies, and an enclosure body surrounding the flat cable and the connecting wire assemblies stacked in the thickness direction perpendicular to the width direction, wherein a first diameter connecting wire assembly, in which the connecting wires constituting the connecting wires are larger in diameter than the connecting wires constituting the other connecting wire assemblies, is arranged on the outer diameter of the curved portion.

[0010] The above-mentioned predetermined directions include the vehicle's longitudinal direction, the vehicle's width direction, or a combination of these directions. The aforementioned sliding components include sliding seats that slide relative to the vehicle body, console boxes such as the center console, and sliding doors.

[0011] The connected components mentioned above include power motors that make up power seats and power windows, interfaces such as USB connectors, audio equipment such as speakers, heaters that make up seat heaters, fans that make up ventilation, and various sensors, as well as other electric devices built into the sliding body, and are also known as auxiliary components. The above width direction refers to the vehicle width direction when the predetermined direction is the vehicle's front-to-rear direction.

[0012] The flat cable described above is made of a suitable material such as a PET sheet, and is surrounded by an insulating sheet containing a sheet material that is flexible and insulating, provided that the flat conductors, which are arranged at predetermined intervals in the width direction, have flexibility and insulating properties. The cable may have more conductors than the number of wires in the large-diameter wire assembly, or it may have multiple flat cables, each having fewer conductors than the number of wires in the large-diameter wire assembly.

[0013] The same number of connecting wires as the wires constituting the other wire sets described above have conductors having conductivity equal to or greater than that of the conductors of the wires constituting the other wire sets, and this includes, for example, having conductors having a cross-sectional area equal to or greater than that of the conductor cross-sectional area of ​​the wires.

[0014] This invention makes it possible to suppress a decrease in flexibility even when using large-diameter wires that carry high currents. More specifically, a harness connector is provided that connects a vehicle-side harness and a slide-side harness, wherein a harness connector is provided that connects a vehicle-side harness and a slide-side harness, with the harness connector being routed along the predetermined direction and forming a curved portion that bends in the thickness direction when bent in the predetermined direction, and the curved portion moves and follows the predetermined direction as the slide body slides in the predetermined direction.

[0015] The harness connector comprises a flat cable with a flat cross-section, where flat conductors connected to the wires of the large-diameter wire assembly are arranged at predetermined intervals in the width direction and are insulated; a plurality of connecting wire sets, each of which is connected to the other wire assembly, with the same number of connecting wires arranged in parallel in the width direction and connected to each of the other wire assembly; and a surrounding body that surrounds the flat cable and the connecting wire sets, which are stacked in the thickness direction perpendicular to the width direction.

[0016] Therefore, the flattened conductor, which has a flatter cross-section than the conductor of the large-diameter wire that makes up the large-diameter wire assembly, has higher flexibility, and the curvature is improved compared to when the connecting wire is made of the large-diameter wire that makes up the large-diameter wire assembly.

[0017] Furthermore, because the other connecting wire assemblies and the flat cable are stacked in the thickness direction and surrounded by the surrounding body, the other connecting wire assemblies and the flat cable deform together. Furthermore, among the connecting wire sets, the first diameter connecting wire set, in which the connecting wires constituting it are larger in diameter than the connecting wires constituting the other connecting wire sets, is positioned on the outer diameter of the curved portion. In other words, in the curved state, the first diameter connecting wire set is positioned on the outer diameter of the curved portion, where the bending radius is larger than on the inner side in the direction of curvature. This suppresses a decrease in the curvature of the harness connector, which is laminated with the flat cable and integrated with the surrounding body, and allows it to curve smoothly and follow the slide of the sliding body.

[0018] In one aspect of this invention, the length of the flat cable in the width direction may be formed to be longer than the length of the connecting wire assembly in the width direction. This invention prevents the flattened cable from restricting deformation in the width direction of the enclosure, thereby preventing the connected wire assembly, in which the connected wires are arranged in parallel in the width direction, from being pulled towards the center by the enclosure, and thus preventing a decrease in the curvature of the harness connection.

[0019] In another aspect of this invention, the surrounding body may be a braided tube formed by weaving fibers into a tubular shape. According to this invention, the braided tube in which fibers are braided into a tubular shape has high deformability and can smoothly deform following the bending of the harness connector. Therefore, it is possible to more reliably prevent the bending property of the harness connector from deteriorating.

[0020] As an aspect of this invention, the connecting wire set may include a first-diameter connecting wire set and a second-diameter connecting wire set composed of second-diameter connecting wires that are thinner than the first-diameter connecting wires constituting the first-diameter connecting wire set. According to this invention, the connecting wire set for connecting other wire sets includes two types: a first-diameter connecting wire set composed of first-diameter connecting wires and a second-diameter connecting wire set composed of second-diameter connecting wires.

[0021] As an aspect of this invention, the first-diameter connecting wire set, the second-diameter connecting wire set, and the flat cable may be laminated in this order in the thickness direction from the outer diameter side to the inner diameter side of the curved portion. According to this invention, the flat cable, which has higher deformability than the second-diameter connecting wire set, is arranged on the innermost side in the bending direction, and it is possible to more reliably prevent the bending property of the harness connector from deteriorating.

[0022] As an aspect of this invention, a partition sheet composed of an insulating sheet is arranged between the first-diameter connecting wire set and the second-diameter connecting wire set, and the partition sheet may be formed to have a width direction length equal to or greater than the width direction length of the connecting wire set.

[0023] The insulating sheet includes a sheet material made of an appropriate material such as a PET sheet as long as it has flexibility and insulation properties. According to this invention, for example, in a curved state, while insulating the first-diameter connecting wire set and the second-diameter connecting wire set, the connecting wires constituting the connecting wire set can be separated without spreading and intruding into the other.

[0024] As another aspect of the present invention, the flat cable may have flat conductors equal to or less than the number of the electric wires constituting the thick-diameter electric wire group, and a plurality of the flat cables may be provided, and the total number of the flat conductors of the plurality of flat cables may be equal to or more than the number of the electric wires constituting the thick-diameter electric wire group.

[0025] According to the present invention, the deformability of the flat cable is improved as compared with the case where one flat cable is provided with flat conductors equal to or more than the number of the electric wires constituting the thick-diameter electric wire group. Therefore, it is possible to more reliably prevent the bending property of the harness connector having a plurality of the flat cables from decreasing.

[0026] As another aspect of the present invention, the plurality of flat cables may be laminated on each other. According to the present invention, the configuration of the harness connector is simplified. Therefore, the harness connector can be easily assembled and configured.

[0027] As another aspect of the present invention, the connecting electric wire group may be arranged between the plurality of flat cables. According to the present invention, at least one of the plurality of flat cables is arranged between the connecting electric wire groups, so that the connecting electric wires constituting the connecting electric wire group can be separated from each other without being scattered and invading the other side.

Effect of the Invention

[0028] According to the present invention, it is possible to provide a harness connector and a harness wiring structure that can suppress a decrease in bending property even when having thick-diameter electric wires through which a large current flows.

Brief Description of the Drawings

[0029] [Figure 1] Schematic perspective view of the slide sheet. [Figure 2] Schematic side view for explaining the slide of the slide sheet. [Figure 3] Explanatory drawing for explaining the slide of the slide sheet. [Figure 4]Diagram illustrating the harness connector. [Figure 5] An explanatory diagram of a harness connector in another embodiment. [Figure 6] An explanatory diagram of a harness connector in another embodiment. [Figure 7] An explanatory diagram of a harness connector in another embodiment. [Figure 8] An explanatory diagram of a harness connector in another embodiment. [Figure 9] An explanatory diagram of a harness connector in another embodiment. [Figure 10] Cross-sectional view of the harness connector of the 12th embodiment. [Modes for carrying out the invention]

[0030] One embodiment of this invention will be described below with reference to Figures 1 to 4. (First Embodiment) Figure 1 shows a schematic perspective view of the slide sheet 100, Figure 2 shows a schematic side view illustrating the slide of the slide sheet 100, Figure 3 shows an explanatory diagram illustrating the slide of the slide sheet 100, and Figure 4 shows an explanatory diagram of the harness connector 20.

[0031] Figure 3(a) shows a schematic side view of the slide seat 100 when it is slid forward Lf of the vehicle body, and Figure 3(b) shows a schematic side view of the slide seat 100 when it is slid backward Lb of the vehicle body. In Figures 3(a) and (b), the slide seat 100 that can slide in the longitudinal direction L of the vehicle body is shown with a dashed line when it is in an intermediate position, and the slide seat 100 that has been slid forward Lf or backward Lb of the vehicle body is shown with a solid line.

[0032] Figure 4(a) shows a schematic side view of the harness connector 20, Figure 4(b) shows a cross-sectional view of AA in Figure 4(a), and Figure 4(c) shows a cross-sectional view of the wire assembly 10 that constitutes the vehicle-side harness 2 and the seat-side harness 3. Note that Figure 4(a) shows the wire assembly 10 (10X, 10Y) and the connecting wire assembly 20Y (20Ya, 20Yb), but omits the illustration of the multiple wires 11 that constitute the wire assembly 10 (10X, 10Y) and the multiple connecting wires 21Y that constitute the connecting wire assembly 20Y (20Ya, 20Yb).

[0033] In Figure 1, the direction connecting the upper left and lower right is defined as the vehicle width direction W, the direction connecting the lower left and upper right is defined as the vehicle longitudinal direction L, and the vertical direction is defined as the height direction H. Furthermore, the direction connecting the lower left and upper right is defined as the vehicle front Lf on the lower left side and the vehicle rear Lb on the upper right side. The same applies to Figures 2 through 10.

[0034] The harness routing structure 1 of the present invention comprises a vehicle-side harness 2 routed to a floor panel 200 constituting the vehicle body, a seat-side harness 3 connected to a connected object provided on a slide seat 100 that slides in the longitudinal direction L relative to the floor panel 200, and a harness connector 20 that connects the vehicle-side harness 2 and the seat-side harness 3.

[0035] The harness connector 20 is routed along the longitudinal direction L of the vehicle body, and a curved portion R is formed which is bent in the longitudinal direction L of the vehicle body and curves in the thickness direction. The curved portion R moves and follows the vehicle body in the longitudinal direction L as the slide seat 100 slides in the longitudinal direction L of the vehicle body. Furthermore, the direction in which the floor panel 200 and the sliding seat 100 face each other is defined as the height direction H, and the direction in the longitudinal direction of the vehicle body L, which intersects the height direction H, is defined as the vehicle width direction W.

[0036] The vehicle-side harness 2 and the seat-side harness 3 are composed of wire sets 10 in which multiple wires 11 with equal cross-sectional areas of conductors 12 are arranged in parallel in the vehicle width direction W. Three or more sets of wire sets 10 are provided so that the cross-sectional areas of the conductors 12 of the wires that make up the set are at least three different. Among the three or more sets of wire sets 10, the wire set composed of the largest diameter wires 11X, which have the largest cross-sectional area of ​​conductor 12, is designated as the large-diameter wire set 10X, and the wire sets among the three or more sets 10 that are different from the large-diameter wire set 10X are designated as other wire sets 10Y. In the following description, when the vehicle-side harness 2 and the seat-side harness 3 are described together, they will simply be referred to as harnesses 2 and 3.

[0037] The harness connector 20 includes a flat cable 20X, which has a flat cross-section and is connected to the large diameter wires 11X of the large diameter wire assembly 10X, and is arranged at predetermined intervals in the vehicle width direction W, and is integrally covered with an insulating sheet 22X; a plurality of connecting wire assemblies 20Y, which have the same number of connecting wires 21Y as the other wires 11Y that make up the other wire assembly 10Y, arranged in parallel in the vehicle width direction W and connected to each of the other wire assemblies 10Y; and a braided tube 30 that surrounds the flat cable 20X and connecting wire assemblies 20Y, which are stacked in the thickness direction perpendicular to the vehicle width direction W.

[0038] Furthermore, among the connecting wire sets 20Y, the first diameter connecting wire set 20Ya, which is composed of first diameter connecting wires 21Ya whose constituent connecting wires 21Y are larger in diameter than the connecting wires 21Y (second diameter connecting wires 21Yb) that constitute the other connecting wire sets 20Y (second diameter connecting wire set 20Yb), is positioned on the outer diameter side (outer side in the curvature direction Ro) of the curved portion than the second diameter connecting wire set 20Yb.

[0039] More specifically, the harness routing structure 1 is for supplying power to the connected components (not shown) of the slide seat 100, which slides in the longitudinal direction L of the vehicle body on the floor panel 200 that constitutes the vehicle body. It consists of a vehicle-side harness 2 provided on the floor panel 200, a seat-side harness 3 provided on the slide seat 100, and a harness connector 20 that connects harnesses 2 and 3. The connected components (not shown) are also known as auxiliary equipment.

[0040] The sliding seat 100 is fixed to the floor panel 200 and includes a seat surface 102 on its bottom side with a slider 101 that can slide in the longitudinal direction L of the vehicle body relative to a seat rail 201 that extends along the longitudinal direction L of the vehicle body, a seat back 103 that can recline relative to the seat surface 102, and a headrest 104 provided on the upper part of the seat back 103. Two of the aforementioned seat rails 201 are provided at a predetermined interval in the vehicle width direction W, and two sliders 101 are provided corresponding to the two seat rails 201.

[0041] In this configuration, the sliding seat 100 incorporates connected components (not shown) such as a drive motor for the power seat, an interface such as a USB connector, audio equipment such as speakers, a heater for the seat heater, a fan for ventilation, and various sensors into the seat surface 102, seat back 103, or headrest 104.

[0042] Furthermore, the slide seat 100 incorporates a seat-side harness 3, one end of which is connected to the connected object. The other end of the seat-side harness 3, one end of which is connected to the connected object, is connected to a connection connector 106 and a conversion connector 107, which are built into a connector unit 105 provided on the bottom surface of the seat surface 102. The connector unit 105 is positioned so as to be exposed toward the front Lf of the vehicle body, allowing the connection connector 106 and the conversion connector 107 to be mated with it.

[0043] Furthermore, a vehicle-side harness 2 is routed to the floor panel 200, with one end connected to a power supply unit such as a battery (not shown). The other end of the vehicle-side harness 2 is connected to a connection connector 203 and a conversion connector 204 built into a connector unit 202 provided on the floor panel 200. The connector unit 202 is positioned so as to be exposed toward the front Lf of the vehicle body, allowing the connection connector 203 and the conversion connector 204 to be mated with it. The connector unit 202 is positioned between seat rails 201 that are arranged at predetermined intervals in the vehicle width direction W, near the midpoint of the seat rails 201 in the vehicle longitudinal direction L.

[0044] The harnesses 2 and 3 configured in this way are equipped with three sets of wire assemblies 10 (10X, 10Ya, 10Yb) in which multiple wires 11 with equal cross-sectional areas of conductors 12 are arranged in parallel in the vehicle width direction W. More specifically, the wire assembly 10 that makes up harnesses 2 and 3 is constructed by arranging multiple wires 11, each having the same cross-sectional area of ​​conductor 12, in parallel in the vehicle width direction W. The wires 11 are round wires constructed by surrounding the conductor 12 with an insulating coating 13, and are composed of conductors 12 with appropriate cross-sectional areas depending on the amount of current being carried.

[0045] Furthermore, as described above, harnesses 2 and 3 are equipped with three types of wire sets 10 (10X, 10Y (10Ya, 10Yb)) with different cross-sectional areas of the conductor 12. Specifically, there are two types of other wire assemblies 10Y: a large-diameter wire assemblies 10X composed of multiple large-diameter wires 11X, each having the largest cross-sectional area of ​​the conductor 12X, arranged in the vehicle width direction W; and two types of other wire assemblies 10Y, each having multiple other wires 11Y, each having a conductor 12Y whose cross-sectional area is smaller than that of the large-diameter conductor 12X, arranged in the vehicle width direction W. The two types of other wire assemblies 10Y are a second-diameter wire assemblies 10Yb composed of a second-diameter wire 11Yb, each having the second-diameter conductor 12Yb with the smallest cross-sectional area of ​​the conductor 12Y; and a first-diameter wire assemblies 10Ya composed of a first-diameter wire 11Ya, each having a first-diameter conductor 12Ya whose cross-sectional area is smaller than that of the large-diameter conductor 12X and larger than that of the second-diameter conductor 12Yb.

[0046] In this embodiment, the diameter of the large-diameter conductor 12X of the large-diameter wire 11X constituting the large-diameter wire assembly 10X is 2.0 sq, the diameter of the first diameter conductor 12Ya of the first diameter wire 11Ya constituting the first diameter wire assembly 10Ya is 0.5 sq, and the diameter of the second diameter conductor 12Yb of the second diameter wire 11Yb constituting the second diameter wire assembly 10Yb is 0.3 sq. However, the cross-sectional area of ​​each conductor is not limited to the above sizes.

[0047] Furthermore, as shown in Figure 4(c), the wire assembly 10 is arranged in the following order in the thickness direction (height direction H): a first-diameter wire assembly 10Ya, which consists of multiple first-diameter wires 11Ya arranged in parallel in the vehicle width direction W; a second-diameter wire assembly 10Yb, which consists of multiple second-diameter wires 11Yb arranged in parallel in the vehicle width direction W; and a large-diameter wire assembly 10X, which consists of multiple large-diameter wires 11X arranged in parallel in the vehicle width direction W.

[0048] Furthermore, the second diameter wire assembly 10Yb is composed of 19 second diameter wires 11Yb arranged in parallel in the vehicle width direction W, the first diameter wire assembly 10Ya is composed of 21 first diameter wires 11Ya arranged in parallel in the vehicle width direction W, and the thick diameter wire assembly 10X is composed of 8 thick diameter wires 11X.

[0049] As described above, connection connectors 106 and 203 and conversion connectors 107 and 204 are connected to the ends of harnesses 2 and 3 configured in this way, and the connection connectors 106 and 203 and conversion connectors 107 and 204 are built into connector units 105 and 202.

[0050] Specifically, among the wire sets 10 that make up the vehicle-side harness 2, connection terminals (not shown) are provided at the ends of the first diameter wire 11Ya that makes up the first diameter wire set 10Ya and the second diameter wire 11Yb that makes up the second diameter wire set 10Yb, and these are housed in a connection connector 106. The connection connector 106 has cavities (not shown) corresponding to the number of other wires 11Y arranged in the vehicle width direction W, and is stacked in two layers in the thickness direction (height direction H). In addition, among the wire sets 10 that make up the vehicle-side harness 2, connection terminals (not shown) are provided at the ends of the thick diameter wires 11X that make up the thick diameter wire set 10X, for connection to the flat conductor 21X of the flat cable 20X described later, and these are housed in a conversion connector 107.

[0051] The connection connector 106 and the conversion connector 107 are stacked in the thickness direction (height direction H) and housed in the connector unit 105. Specifically, in the connector unit 105, the connection connector 106 is positioned on the upper side in the height direction H, and the conversion connector 107 is positioned on the lower side.

[0052] Similarly, among the wire assemblies 10 constituting the seat-side harness 3, connection terminals (not shown) are provided at the ends of the first diameter wire 11Ya constituting the first diameter wire assembly 10Ya and the second diameter wire 11Yb constituting the second diameter wire assembly 10Yb, and these are housed in a connection connector 203. The connection connector 203 has cavities (not shown) corresponding to the number of other wires 11Y arranged in the vehicle width direction W, and is stacked in two layers in the thickness direction (height direction H). In addition, among the wire assemblies 10 constituting the vehicle body-side harness 2, connection terminals (not shown) are provided at the ends of the thick diameter wires 11X constituting the thick diameter wire assembly 10X, for connection to the flat conductors 21X of the flat cable 20X described later, and these are housed in a conversion connector 204.

[0053] The connection connector 203 and the conversion connector 204 are stacked in the thickness direction (height direction H) and housed in the connector unit 202. Specifically, unlike the connector unit 105 in which the connection connector 106 is located on the upper side in the height direction H and the conversion connector 107 is located on the lower side, in the connector unit 202 the connection connector 203 is located on the lower side in the height direction H and the conversion connector 204 is located on the upper side.

[0054] In addition, the connection connectors 106 and 203 have cavities (not shown) corresponding to the number of other wires 11Y arranged in the vehicle width direction W, and are stacked in two layers in the thickness direction (height direction H). However, the connection connectors 106 and 203 provided at the ends of the first diameter wire assembly 10Ya, which is made up of first diameter wires 11Ya, and the connection connectors 106 and 203 provided at the ends of the second diameter wire assembly 10Yb, which is made up of second diameter wires 11Yb, may be configured as separate components.

[0055] Next, we will describe the harness connector 20, which is connected to the vehicle-side harness 2 and the seat-side harness 3 via connection connectors 106, 203 and conversion connectors 107, 204, and which connects harnesses 2 and 3.

[0056] As described above, the harness connector 20 comprises a flat cable 20X, a plurality of connecting wire sets 20Y, and a braided tube 30 that surrounds the stacked flat cable 20X and connecting wire sets 20Y.

[0057] As shown in Figure 4(b), the flat cable 20X has a flat cross-section, and the flat conductors 21X are connected to the large diameter conductors 12X of the large diameter wires 11X of the large diameter wire assembly 10X of the wire assembly 10 that constitutes the harness 2,3, and are arranged at predetermined intervals in the vehicle width direction W, and are integrally covered with an insulating sheet 22X.

[0058] The flattened conductor 21X is a rectangular cross-sectional conductor having a cross-sectional area corresponding to the conductivity of the large-diameter conductor 12X of the large-diameter wire 11X that constitutes the wire assembly 10. The insulating sheet 22X is made of a PET film that has insulating and flexible properties, and covers the flat conductors 21X, which are arranged at predetermined intervals in the vehicle width direction W, by integrally sandwiching them from both sides in the thickness direction.

[0059] Furthermore, of the eight large-diameter conductors 12X that make up the large-diameter wire assembly 10X, four large-diameter conductors 12X are connected to a flat conductor 21X, which is arranged on a flat cable 20X of one harness wiring structure. Therefore, two flat cables 20X are provided. Both ends of the flat cable 20X configured in this way are provided with conversion connectors 24 that are mated and connected to conversion connectors 107 and 204.

[0060] The conversion connector 24 houses the aforementioned connecting terminals (not shown) provided at each end of the flat conductor 21X that constitute the flat cable 20X. Furthermore, the harness connector 20 includes not only a flat cable 20X having a flat conductor 21X, but also two types of connecting wire sets 20Y (20Ya, 20Yb) with different cross-sectional areas of the conductor 22Y.

[0061] Specifically, the connecting wire assembly 20Y is composed of multiple connecting wires 21Y that are connected to other wires 11Y in the other wire assembly 10Y described above, and has connecting connectors 25 at both ends that are mated and connected to the connecting connectors 106 and 203.

[0062] More specifically, there are two other types of wire assemblies 10Y: a second-diameter wire assembly 10Yb composed of second-diameter wires 11Yb having a second-diameter conductor 12Yb with a smaller cross-sectional area of ​​conductor 12Y, and a first-diameter wire assembly 10Ya composed of first-diameter wires 11Ya having a first-diameter conductor 12Ya with a cross-sectional area of ​​conductor 12Y smaller than the cross-sectional area of ​​the large-diameter conductor 12X and larger than the second-diameter conductor 12Yb. The connecting wire assembly 20Y consists of a second-diameter connecting wire assembly 20Yb and a first-diameter connecting wire assembly 20Ya.

[0063] The first diameter connecting wire assembly 20Ya corresponds to the first diameter wire assembly 10Ya, which is composed of first diameter wires 11Ya having a first diameter conductor 12Ya, and has multiple first diameter connecting wires 21Ya, each having a first diameter conductor 22Ya that is formed with the same cross-sectional area as the first diameter conductor 12Ya and connected to the first diameter conductor 12Ya.

[0064] The second diameter connecting wire assembly 20Yb corresponds to the second diameter wire assembly 10Yb, which is composed of second diameter wires 11Yb having second diameter conductors 12Yb, and has multiple second diameter connecting wires 21Yb, each having the same cross-sectional area as the second diameter conductor 12Yb and equipped with a second diameter conductor 22Yb that is connected to the second diameter conductor 12Yb.

[0065] Furthermore, the first diameter conductor 22Ya of the first diameter connecting wire 21Ya, which is connected to the first diameter conductor 12Ya of the first diameter wire 11Ya constituting the first diameter wire assembly 10Ya, has a diameter of φ0.5, and the second diameter conductor 22Yb, which is connected to the second diameter conductor 12Yb of the second diameter wire 11Yb constituting the second diameter wire assembly 10Yb, has a diameter of φ0.3.

[0066] Furthermore, the second diameter connecting wire assembly 20Yb is configured by arranging 19 second diameter connecting wires 21Yb in parallel in the vehicle width direction W, corresponding to the second diameter wire 11Yb, and the first diameter connecting wire assembly 20Ya is configured by arranging 21 first diameter wires 11Ya in parallel in the vehicle width direction W, corresponding to the first diameter wire 11Ya.

[0067] As described above, connection connectors 25 are provided at both ends of the connected wire assembly 20Y configured in this way, which are mated and connected to connection connectors 106 and 203. Specifically, connection terminals (not shown) are provided at the ends of the first diameter connecting wire 21Ya, which constitutes the first diameter connecting wire set 20Ya, and the second diameter connecting wire 21Yb, which constitutes the second diameter connecting wire set 20Yb, and are housed in a connection connector 25. The connection connector 25 has cavities (not shown) corresponding to the number of connecting wires 21Y arranged in the vehicle width direction W, and is stacked in two layers in the thickness direction (height direction H).

[0068] In addition, the connection connector 25 has cavities (not shown) corresponding to the number of connecting wires 21Y arranged in the vehicle width direction W, and stacked in two layers in the thickness direction (height direction H). However, the connection connector 25 provided at the end of the first diameter connecting wire set 20Ya, which is composed of the first diameter connecting wires 21Ya, and the connection connector 25 provided at the end of the second diameter connecting wire set 20Yb, which is composed of the second diameter connecting wires 21Yb, may be configured as separate components.

[0069] The flat cable 20X and connecting wire assembly 20Y configured in this way are stacked in the thickness direction, as shown in Figure 4(b), and the space between the connectors 24 and 25 provided at both ends in the longitudinal direction is surrounded by a braided tube 30. The flat cable 20X is formed to be longer than the length in the vehicle width direction W of the connecting wire assembly 20Y, in which the connecting wires 21Y (21Ya, 21Yb) are arranged in parallel in the vehicle width direction W.

[0070] The braided tube 30 is formed into a tube shape by weaving fibers together, and has a flat cable 20X and a connecting wire assembly 20Y that are stacked inside it, and is configured to be deformable by the flat cable 20X and the connecting wire assembly 20Y that are inserted inside.

[0071] Furthermore, as shown in Figure 4(b), the flat cables 20X and connecting wire assemblies 20Y, which are stacked in the thickness direction, are arranged in the following order in the thickness direction: a first-diameter connecting wire assemblies 20Ya, in which multiple first-diameter connecting wires 21Ya are arranged in parallel in the vehicle width direction W; a second-diameter connecting wire assemblies 20Yb, in which multiple second-diameter connecting wires 21Yb are arranged in parallel in the vehicle width direction W; and a flat cable 20X, in which multiple flat conductors 21X are arranged in parallel in the vehicle width direction W.

[0072] The harness assembly 20 configured in this way can be connected to the harnesses 2 and 3, which are made up of wire assemblies 10 as described above, thereby forming the harness routing structure 1. Specifically, one end of the connection connector 25 provided at both ends of the connecting wire set 20Y of the harness connector 20 is mated and connected to the connection connector 203 of the vehicle-side harness 2, and one end of the conversion connector 24 provided at both ends of the flat cable 20X is mated and connected to the conversion connector 204. Furthermore, the other end of the connection connector 25 provided at both ends of the connecting wire set 20Y of the harness connector 20 is mated and connected to the connection connector 106 of the seat-side harness 3, and the other end of the conversion connector 24 provided at both ends of the flat cable 20X is mated and connected to the conversion connector 107.

[0073] As a result, via conversion connectors 24, 107, and 204, the large diameter wires 11X of the large diameter wire assembly 10X of the wire assembly 10 constituting harnesses 2 and 3 and the flat conductors 21X of the flat cable 20X of the harness connector 20 are energetically connected, and via connection connectors 25, 106, and 203, the other wires 11Y of the other wire assembly 10Y of the wire assembly 10 constituting harnesses 2 and 3 and the connecting wires 21Y of the connecting wire assembly 20Y of the harness connector 20 are energetically connected, thereby forming the harness wiring structure 1.

[0074] At this time, the connector units 105 and 202 are arranged in a orientation that exposes them toward the front Lf of the vehicle body so that the connection connectors 106 and 203 and the conversion connectors 107 and 204 can be mated with them. Therefore, the conversion connector 24 and the connection connector 25 are mated with the connection connectors 106 and 203 and the conversion connectors 107 and 204 by inserting them from the front Lf of the vehicle body toward the rear Lb of the vehicle body.

[0075] Therefore, as shown in the enlarged view of part a in Figure 2, the harness connector 20 is bent back toward the rear Lb of the vehicle body at the front Lf of the vehicle body from the connector units 105 and 202, forming a roughly U-shape when viewed from the side. In this roughly U-shaped harness connector 20, the first diameter connecting wire assembly 20Ya of the connecting wire assemblies 20Y stacked in the thickness direction is arranged on the outer side of the curved portion R in the roughly U-shape, i.e., the outer side Ro in the curved direction (see enlarged view of part a in Figure 2), and the flat cable 20X is arranged on the inner side Ri in the curved direction.

[0076] Furthermore, in the harness routing structure 1, which is constructed by connecting harnesses 2 and 3 made up of wire assemblies 10 with a harness connector 20, as shown in Figure 3, when the slide seat 100 slides along the seat rail 201 in the longitudinal direction L of the vehicle body, the curved portion R of the harness connector 20 moves in the longitudinal direction L of the vehicle body and follows the slide seat 100 as it slides in the longitudinal direction L of the vehicle body.

[0077] Specifically, as shown in Figure 3(a), when the slide sheet 100 slides from the intermediate position shown in Figure 2 to the front Lf of the vehicle body, the connector unit 105 provided on the slide sheet 100 also moves to the front Lf of the vehicle body. Note that the connector unit 202 provided on the floor panel 200 does not move even when the slide sheet 100 moves to the front Lf of the vehicle body. Therefore, the curved portion R of the harness connector 20, to which connectors 24 and 25 are mated and connected to the connection connectors 106 and 203 and conversion connectors 107 and 204 of the connector units 105 and 202, also moves to the front Lf of the vehicle body. At this time, the amount of movement of the curved portion R to the front Lf of the vehicle body is half the distance of the slide sheet 100 sliding to the front Lf of the vehicle body.

[0078] Conversely, as shown in Figure 3(b), when the slide sheet 100 slides from the intermediate position shown in Figure 2 to the rear Lb of the vehicle body, the connector unit 105 provided on the slide sheet 100 also moves to the rear Lb of the vehicle body, and the curved portion R of the harness connector 20 also moves to the rear Lb of the vehicle body. At this time, the amount of movement of the curved portion R to the rear Lb of the vehicle body is half the distance of the slide sheet 100 sliding to the rear Lb of the vehicle body.

[0079] In this way, as the sliding sheet 100 slides in the longitudinal direction L of the vehicle body, the curved portion R of the harness connector 20 moves in the longitudinal direction L of the vehicle body, and the harness routing structure 1 can maintain its connection with the harnesses 2 and 3 via the harness connector 20.

[0080] The harness connector 20 and the harness routing structure 1 equipped with the harness connector 20 configured in this way can suppress a decrease in flexibility even when using large-diameter wires 11X that carry a large current. Specifically, the harness connector 20 connects the vehicle-side harness 2 routed to the floor panel 200 with the seat-side harness 3 connected to a connected component provided on the slide seat 100, which slides in the longitudinal direction L relative to the floor panel 200.

[0081] Furthermore, the harness connector 20 is routed along the longitudinal direction L of the vehicle body, and a curved portion R is formed which is bent in the longitudinal direction L of the vehicle body and curves in the thickness direction. The curved portion R moves and follows the vehicle body in the longitudinal direction L as the slide seat 100 slides in the longitudinal direction L of the vehicle body.

[0082] Furthermore, the direction in which the floor panel 200 and the slide seat 100 face each other is defined as the height direction H, and the direction in the front-rear direction L of the vehicle body, which intersects the height direction H, is defined as the vehicle width direction W. The harnesses 2 and 3 are provided with three or more sets of wire assemblies 10, each consisting of multiple wires 11 with equal conductor cross-sectional area arranged in parallel in the vehicle width direction W, such that the conductors 12 of the wires 11 consist of at least three different types. Among the three or more sets of wire assemblies 10, the set composed of the thickest diameter wire 11X with the thickest conductor 12 is defined as the thickest diameter wire assemblies 10X, and the other sets of wire assemblies 10 that are different from the thickest diameter wire assemblies 10X are defined as the other wire assemblies 10Y.

[0083] The harness connector 20 includes a flat cable 20X, which has a flat cross-section and is connected to the large diameter wires 11X of the large diameter wire assembly 10X, arranged at predetermined intervals in the vehicle width direction W, and is integrally covered with an insulating sheet 22X; a plurality of connecting wire assemblies 20Y, which have the same number of connecting wires 21Y as the other wires 11Y constituting the other wire assembly 10Y, arranged in parallel in the vehicle width direction W and connected to each of the other wire assembly 10Y; and a braided tube 30 that surrounds the flat cable 20X and connecting wire assemblies 20Y, which are stacked in the thickness direction perpendicular to the vehicle width direction W. Among the connecting wire assemblies 20Y, a first diameter connecting wire assembly 20Ya, in which the connecting wires 21Y constituting it are larger in diameter than the connecting wires 21Y constituting the other connecting wire assemblies 20Y, is arranged on the outer side Ro in the curvature direction of the curved portion R.

[0084] More specifically, a harness connector 20 connects harnesses 2 and 3, each consisting of a wire assembly 10 in which multiple wires 11 with equal conductor cross-sectional areas are arranged in parallel in the vehicle width direction W, such that the conductors 12 of the wires 11 consist of at least three different types. The wire assembly composed of the largest diameter wire 11X among the three or more wire assembly 10 is designated as the large-diameter wire assembly 10X, and the wire assembly different from the large-diameter wire assembly 10X among the three or more wire assembly 10 are designated as other wire assembly 10Y.

[0085] The harness connector 20 is routed along the longitudinal direction L of the vehicle body, and a curved portion R is formed which is bent in the longitudinal direction L of the vehicle body and curves in the thickness direction. The curved portion R moves and follows the vehicle body in the longitudinal direction L as the slide seat 100 slides in the longitudinal direction L of the vehicle body.

[0086] The harness connector 20 includes a flat cable 20X, which has a flat cross-section and is connected to the large diameter wires 11X of the large diameter wire assembly 10X, and is arranged at predetermined intervals in the vehicle width direction W and is insulated; a plurality of connecting wire assemblies 20Y, in which the same number of connecting wires 21Y as the other wires 11Y that make up the other wire assembly 10Y are arranged in parallel in the vehicle width direction W and connected to each of the other wire assemblies 10Y; and a braided tube 30 that surrounds the flat cable 20X and connecting wire assemblies 20Y, which are stacked in the thickness direction perpendicular to the vehicle width direction W.

[0087] Therefore, the flattened conductor 21X, which has a flatter cross-section than the thick-diameter conductor 12X of the thick-diameter wire 11X that makes up the thick-diameter wire assembly 10X, has higher flexibility, and the curvature is improved compared to when the connecting wire 21Y is made up of the thick-diameter wire 11X that makes up the thick-diameter wire assembly 10X.

[0088] Furthermore, because the other connecting wire assemblies 20Y and the flat cables 20X are stacked in the thickness direction and surrounded by the braided tube 30, the other connecting wire assemblies 20Y and the flat cables 20X deform together. Furthermore, among the connecting wire sets 20Y, the first diameter connecting wire set 20Ya, in which the connecting wires 21Y that make up the other connecting wire sets 20Y are larger in diameter, is positioned on the outer side Ro in the curvature direction. In other words, in the curved portion R, the first diameter connecting wire set 20Ya is positioned on the outer side Ro in the curvature direction, where the bending radius is larger than on the inner side in the curvature direction. This suppresses a decrease in the curvature of the harness connector 20, which is laminated with the flat cable 20X and integrated with the braided tube 30, and allows it to curve smoothly and follow the slide of the slide sheet 100.

[0089] Furthermore, since the length of the flat cable 20X in the vehicle width direction W is longer than the length of the connecting wire assembly 20Y in the vehicle width direction W, the flat cable 20X can restrict the deformation of the braided tube 30 in the vehicle width direction W, and the connecting wire assembly 20Y, in which the connecting wires 21Y are arranged in parallel in the vehicle width direction W, is drawn towards the center by the surrounding braided tube 30, preventing a decrease in the curvature of the harness connector 20.

[0090] Furthermore, the braided tube 30, in which fibers are woven into a tubular shape, has high deformability and can smoothly deform to follow the curvature of the harness connector 20. Therefore, it is possible to more reliably prevent a decrease in the curvature of the harness connector 20.

[0091] Furthermore, the connecting wire assembly 20Y includes a first-diameter connecting wire assembly 20Ya and a second-diameter connecting wire assembly 20Yb, which is composed of second-diameter connecting wires 21Yb that are smaller in diameter than the first-diameter connecting wires 21Ya that make up the first-diameter connecting wire assembly 20Ya. Therefore, there are two types of connecting wire assemblies 20Y that connect other wire assemblies 10Y: the first-diameter connecting wire assembly 20Ya, which is composed of first-diameter connecting wires 21Ya, and the second-diameter connecting wire assembly 20Yb, which is composed of second-diameter connecting wires 21Yb.

[0092] Furthermore, since the first diameter connecting wire assembly 20Ya, the second diameter connecting wire assembly 20Yb, and the flat cable 20X are stacked in this order in the thickness direction from the outer Ro in the curvature direction of the curved portion R toward the inner Ri in the curvature direction, the flat cable 20X, which has higher deformability than the second diameter connecting wire assembly 20Yb, is positioned on the inner Ri in the curvature direction of the curved portion R, thereby further reliably preventing a decrease in the curvature of the harness connector 20.

[0093] Furthermore, the flat cable 20X has flat conductors 21X that are equal to or less than the number of thick wires 11X that make up the thick wire assembly 10X, and two flat cables 20X are provided, with the total number of conductors of the two flat cables 20X being equal to or greater than the number of thick wires 11X that make up the thick wire assembly 10X. As a result, the deformability of the flat cable 20X is improved compared to the case where a single flat cable 20X is provided with flat conductors 21X equal to or greater than the number of thick wires 11X that make up the thick wire assembly 10X. Therefore, it is possible to more reliably prevent a decrease in the curvature of the harness connector 20 having two flat cables 20X. In addition, compared to the case where a single flat cable 20X is provided with flat conductors 21X equal to or greater than the number of thick wires 11X that make up the thick wire assembly 10X, the spacing between the flat conductors 21X is wider, which improves the insulation performance of the flat cable 20X. Furthermore, since the two flat cables 20X are stacked on top of each other, the configuration of the harness connector 20 is simplified. Therefore, the harness connector 20 can be easily assembled and configured.

[0094] (Second Embodiment) Next, the harness connector 20A of the second embodiment will be described with reference to Figure 5(a). Figure 5(a) is a cross-sectional view of the harness connector 20A of the second embodiment, and is a cross-sectional view of the center in the longitudinal direction of the harness connector 20A, corresponding to the position of cross-sectional view AA in Figure 4(a). In the following explanation, components similar to those described above will be denoted by the same reference numerals, and their explanations will be omitted.

[0095] The harness connector 20 of the first embodiment described above is arranged in the following order from Ro on the outside of the curved portion R toward Ri on the inside of the curved portion R: a first diameter connecting wire assembly 20Ya, which is composed of a first diameter connecting wire 21Ya that is connected to the first diameter wire 11Ya that constitutes the first diameter wire assembly 10Ya, among the other wire assemblies 10Y that constitute the wire assembly 10; a second diameter connecting wire assembly 20Yb, which is composed of a second diameter connecting wire 21Yb that is connected to the second diameter wire 11Yb that constitutes the second diameter wire assembly 10Yb; and two flat cables 20X, each with a flat conductor 21X surrounded by an insulating sheet 22X that is connected to the thick diameter wire 11X of the thick diameter wire assembly 10X that constitutes the wire assembly 10.

[0096] In contrast, the harness connector 20A of the second embodiment has two flat cables 20X connected to the large diameter wire 11X, positioned between the first diameter connecting wire set 20Ya, which consists of a first diameter connecting wire 21Ya connected to the first diameter wire 11Ya, and the second diameter connecting wire set 20Yb, which consists of a second diameter connecting wire 21Yb connected to the second diameter wire 11Yb. In other words, the harness connector 20A of the second embodiment has the first diameter connecting wire set 20Ya, the two flat cables 20X, and the second diameter connecting wire set 20Yb arranged in this order from the outer side Ro in the direction of curvature of the curved portion R toward the inner side Ri in the direction of curvature.

[0097] Furthermore, in order to arrange the flat cable 20X and connecting wire assemblies 20Y (20Ya, 20Yb) that constitute the harness connector 20A as described above, the large-diameter wire assemblies 10X and other wire assemblies 10Y (10Ya, 10Yb) that constitute the wire assemblies 10 that constitute harnesses 2 and 3 must also be arranged accordingly. In the following explanation, the arrangement of the flat cable 20X and connecting wire assemblies 20Y (20Ya, 20Yb) will be described, and unless there are special circumstances, the arrangement of the large-diameter wire assemblies 10X and other wire assemblies 10Y (10Ya, 10Yb) that constitute the wire assemblies 10 will be omitted as they correspond to the arrangement of the flat cable 20X and connecting wire assemblies 20Y in the harness connector 20.

[0098] The harness connector 20A configured in this way and the harness routing structure 1 equipped with the harness connector 20A can achieve the same functions and effects as the harness connector 20 and the harness routing structure 1 equipped with the harness connector 20 of the first embodiment described above.

[0099] (Third embodiment) Next, the harness connector 20B of the third embodiment will be described with reference to Figure 5(b). Figure 5(b) is a longitudinal cross-sectional view of the harness connector 20B of the third embodiment.

[0100] In the harness connector 20 of the first embodiment described above, the first diameter connecting wire assembly 20Ya, the second diameter connecting wire assembly 20Yb, and two stacked flat cables 20X are arranged in this order from the outer side Ro in the direction of curvature of the curved portion R toward the inner side Ri in the direction of curvature. In contrast, the harness connector 20B of the third embodiment has one of the two flat cables 20X positioned between the first diameter connecting wire assembly 20Ya, which consists of a first diameter connecting wire 21Ya connected to the first diameter wire 11Ya, and the second diameter connecting wire assembly 20Yb, which consists of a second diameter connecting wire 21Yb connected to the second diameter wire 11Yb, and the other flat cable 20X positioned on the inner Ri in the curvature direction of the second diameter connecting wire assembly 20Yb. In other words, in the curved portion R, the harness connector 20B of the third embodiment has the first diameter connecting wire assembly 20Ya, one flat cable 20X, the second diameter connecting wire assembly 20Yb, and one flat cable 20X positioned in this order from the outer Ro in the curvature direction to the inner Ri in the curvature direction.

[0101] The harness connector 20B and the harness routing structure 1 equipped with the harness connector 20B configured in this way can provide the same functions and effects as the harness connector 20 and the harness routing structure 1 equipped with the harness connector 20 of the first embodiment described above, as well as the following functions and effects.

[0102] Specifically, since the second diameter connecting wire assembly 20Yb is placed between two flat cables 20X, or in other words, since one flat cable 20X is placed between two connecting wire assemblies 20Y, the first diameter connecting wire 21Ya that constitutes the first diameter connecting wire assembly 20Ya and the second diameter connecting wire 21Yb that constitutes the second diameter connecting wire assembly 20Yb can be separated without encroaching on the other.

[0103] (Fourth Embodiment) Next, the harness connector 20C of the fourth embodiment will be described with reference to Figure 6(a). Figure 6(a) is a longitudinal cross-sectional view of the harness connector 20C of the fourth embodiment.

[0104] In the fourth embodiment, the harness connector 20C has one of the two flat cables 20X positioned on the outer side Ro in the curvature direction of the connecting wire assembly 20Y, and the other flat cable 20X positioned on the inner side Ri in the curvature direction of the connecting wire assembly 20Y. In other words, in the harness connector 20C of the fourth embodiment, one flat cable 20X, a first diameter connecting wire assembly 20Ya, a second diameter connecting wire assembly 20Yb, and one flat cable 20X are arranged in this order from the outer side Ro in the curvature direction of the curved portion R toward the inner side Ri in the curvature direction, and the connecting wire assembly 20Y (20Ya, 20Yb) is sandwiched in the thickness direction by the two flat cables 20X.

[0105] The harness connector 20C and the harness routing structure 1 equipped with the harness connector 20C configured in this way can provide the same functions and effects as the harness connector 20 and the harness routing structure 1 equipped with the harness connector 20 of the first embodiment described above, as well as the following functions and effects.

[0106] Specifically, since the flat cable 20X, whose length in the vehicle width direction W is longer than the connecting wire assembly 20Y, is arranged on both sides of the connecting wire assembly 20Y (20Ya, 20Yb), the flat cable 20X can restrict the deformation of the braided tube 30 in the vehicle width direction W, and the braided tube 30 can exert a tightening force on the connecting wire assembly 20Y, in which the connecting wires 21Y are arranged in parallel in the vehicle width direction W, thereby preventing the parallel arrangement of the connecting wires 21Y from collapsing.

[0107] (Fifth embodiment) Next, the harness connector 20D of the fifth embodiment will be described with reference to Figure 6(b). Figure 6(b) is a longitudinal cross-sectional view of the harness connector 20D of the fifth embodiment.

[0108] In the harness assembly 20 of the first embodiment, the first diameter connecting wire assembly 20Ya, the second diameter connecting wire assembly 20Yb, and two stacked flat cables 20X are arranged in this order from the outer side Ro in the curvature direction to the inner side Ri in the curvature direction of the curved portion R. In contrast, the harness assembly 20D of the fifth embodiment has a partition sheet 26 placed between the first diameter connecting wire assembly 20Ya and the second diameter connecting wire assembly 20Yb among the connecting wire assembly 20Y arranged on the outer side Ro in the curvature direction of the two flat cables 20X in the curved portion R.

[0109] The partition sheet 26 is made of the same material as the insulating sheet 22X that covers the flat conductor 21X in the flat cable 20X, and is made to be approximately the same length as the flat cable 20X in the vehicle width direction W. The partition sheet 26 may be made of a different sheet material from the insulating sheet 22 that has insulating and flexible properties.

[0110] The harness connector 20D and the harness routing structure 1 equipped with the harness connector 20D configured in this way can provide the same functions and effects as the harness connector 20 and the harness routing structure 1 equipped with the harness connector 20 of the first embodiment described above, as well as the following functions and effects.

[0111] Specifically, a partition sheet 26 made of an insulating sheet is placed between the first diameter connecting wire assembly 20Ya and the second diameter connecting wire assembly 20Yb. Since the partition sheet 26 is formed with a length in the vehicle width direction W that is greater than or equal to the length of the first diameter connecting wire assembly 20Ya in the vehicle width direction W, for example, in a curved portion R, the connecting wires 21Y constituting the connecting wire assembly 20Y can be separated without scattering and encroaching on the other, while insulating the first diameter connecting wire assembly 20Ya and the second diameter connecting wire assembly 20Yb.

[0112] (Sixth Embodiment) Next, the harness connector 20E of the sixth embodiment will be described with reference to Figure 7(a). Figure 7(a) is a longitudinal cross-sectional view of the harness connector 20E of the sixth embodiment.

[0113] In the first embodiment, the harness connector 20 consists of a first diameter connecting wire assembly 20Ya, a second diameter connecting wire assembly 20Yb, and two stacked flat cables 20X arranged in this order from the outer Ro in the curvature direction to the inner Ri in the curvature direction at a curved portion R. In contrast, the harness connector 20E of the sixth embodiment consists of a flat, thick-walled cable 20Xa, which has a flat, thick-walled conductor 21Xa that is thicker than the flat conductor 21X of the flat cable 20X. The flat, thick-walled cable 20Xa is then positioned at the outer Ro in the curvature direction of the flat cable 20X at the curved portion R.

[0114] The harness connector 20E and the harness routing structure 1 equipped with the harness connector 20E configured in this way can provide the same functions and effects as the harness connector 20 and the harness routing structure 1 equipped with the harness connector 20 of the first embodiment described above, as well as the following functions and effects.

[0115] Specifically, the flat-walled thick-walled cable 20Xa, which has a flat-walled thick-walled conductor 21Xa that is thicker than the flat conductor 21X, has reduced flexibility compared to the flat cable 20X. However, in the laminated flat-walled thick-walled cable 20Xa and flat cable 20X, the flat-walled thick-walled cable 20Xa is positioned on the outer Ro in the bending direction, where the bending radius is larger than the inner Ri in the bending direction of the curved portion R. Therefore, the reduction in flexibility of the harness connector 20E is suppressed, and it can smoothly bend and follow the sliding of the slide sheet 100. In addition, since the flat-walled thick-walled conductor 21Xa is thicker than the flat conductor 21X in the flat cable 20X, it can conduct even larger currents.

[0116] (Seventh Embodiment) Next, the harness connector 20F of the seventh embodiment will be described with reference to Figure 7(b). Figure 7(b) is a longitudinal cross-sectional view of the harness connector 20F of the seventh embodiment.

[0117] In the seventh embodiment, the harness connector 20F has the flat, thick-walled cable 20Xa from the harness connector 20E of the sixth embodiment positioned Ro to the outside in the curvature direction from the connecting wire assembly 20Y (20Ya, 20Yb).

[0118] The harness connector 20F and the harness routing structure 1 equipped with the harness connector 20F configured in this way can provide the same functions and effects as the harness connector 20 of the first embodiment and the harness routing structure 1 equipped with the harness connector 20 described above, as well as the same functions and effects as the harness connector 20C of the fourth embodiment, the harness connector 20E of the sixth embodiment, and the harness routing structure 1 equipped with harness connectors 20C and 20E described above.

[0119] (Eighth embodiment) Next, the harness connector 20G of the eighth embodiment will be described with reference to Figure 8(a). Figure 8(a) is a longitudinal cross-sectional view of the harness connector 20G of the eighth embodiment.

[0120] In the eighth embodiment, the harness connector 20G arranges the flat cable 20X from the harness connector 20F of the seventh embodiment between the first diameter connecting wire assembly 20Ya and the second diameter connecting wire assembly 20Yb. The harness connector 20G and the harness routing structure 1 equipped with the harness connector 20G configured in this way can provide the same functions and effects as the harness connector 20 of the first embodiment and the harness routing structure 1 equipped with the harness connector 20 described above, as well as the same functions and effects as the harness connector 20C of the fourth embodiment, the harness connector 20E of the sixth embodiment, the harness connector 20F of the seventh embodiment, and the harness routing structure 1 equipped with harness connectors 20C, 20E, and 20F described above.

[0121] (Ninth Embodiment) Next, the harness connector 20H of the ninth embodiment will be described with reference to Figure 8(b). Figure 8(b) is a longitudinal cross-sectional view of the harness connector 20H of the ninth embodiment.

[0122] In the ninth embodiment, the harness connector 20H has a partition sheet 26 placed between the first diameter connecting wire set 20Ya and the second diameter connecting wire set 20Yb in the harness connector 20F of the seventh embodiment. The harness connector 20H and the harness wiring structure 1 equipped with the harness connector 20H configured in this way can provide the same functions and effects as the harness connector 20 of the first embodiment and the harness wiring structure 1 equipped with the harness connector 20 described above, as well as the same functions and effects as the harness connector 20C of the fourth embodiment, the harness connector 20D of the fifth embodiment, the harness connector 20E of the sixth embodiment, the harness connector 20F of the seventh embodiment, and the harness wiring structure 1 equipped with harness connectors 20C, 20D, 20E, and 20F described above.

[0123] (Tenth embodiment) Next, the harness connector 20I of the tenth embodiment will be described with reference to Figure 9(a). Figure 9(a) is a longitudinal cross-sectional view of the harness connector 20I of the tenth embodiment.

[0124] The harness connector 20 of the first embodiment described above is arranged in the following order from the outer side Ro in the curvature direction toward the inner side Ri in the curvature direction: a first diameter connecting wire assembly 20Ya, which is composed of a first diameter connecting wire 21Ya that is connected to the first diameter wire 11Ya that constitutes the first diameter wire assembly 10Ya, among the other wire assemblies 10Y that constitute the wire assembly 10; a second diameter connecting wire assembly 20Yb, which is composed of a second diameter connecting wire 21Yb that is connected to the second diameter wire 11Yb that constitutes the second diameter wire assembly 10Yb; and two flat cables 20X, each with a flat conductor 21X connected to the thick diameter wire 11X of the thick diameter wire assembly 10X that constitutes the wire assembly 10, surrounded by an insulating sheet 22X. In other words, the connecting wire assembly 20Y was positioned on the outer side Ro in the curvature direction of the two flat cables 20X.

[0125] In contrast, the harness connector 20I of the tenth embodiment includes a connecting wire assembly 20Y arranged on the outer side Ro in the curvature direction of the two stacked flat cables 20X. This assembly comprises a first diameter connecting wire assembly 20Ya composed of first diameter connecting wires 21Ya, a second diameter connecting wire assembly 20Yb composed of second diameter connecting wires 21Yb, and a third diameter connecting wire assembly 20Yc composed of third diameter connecting wires 21Yc which are smaller in diameter than the first diameter connecting wires 21Ya and larger in diameter than the second diameter connecting wires 21Yb.

[0126] Furthermore, the third-diameter connecting wire assembly 20Yc, which consists of multiple third-diameter connecting wires 21Yc arranged in parallel in the vehicle width direction W, is positioned on the outer side Ro in the curvature direction of the second-diameter connecting wire assembly 20Yb, which is composed of second-diameter connecting wires 21Yb, and on the inner side Ri in the curvature direction of the first-diameter connecting wire assembly 20Ya, which is composed of first-diameter connecting wires 21Ya. In other words, the first-diameter connecting wire assembly 20Ya, the third-diameter connecting wire assembly 20Yc, and the second-diameter connecting wire assembly 20Yb are arranged in this order from the outer side Ro in the curvature direction toward the inner side Ri in the curvature direction.

[0127] In addition, the other wire assemblies 10Y connected to the wire assemblies 10, which are equipped with the third-diameter connecting wire assemblies 20Yc, also include a first-diameter wire assemblies 10Ya composed of first-diameter wires 11Ya and a second-diameter wire assemblies 10Yb composed of second-diameter wires 11Yb, as well as a third-diameter wire assemblies (not shown) composed of third-diameter wires (not shown) of the same diameter as the third-diameter connecting wire 21Yc. Therefore, the connection connectors 106, 203 provided at the ends of the other wire assemblies 10Y of harnesses 2, 3, and the connection connectors 25 provided at both ends of the connecting wire assemblies 20Y, have cavities (not shown) aligned in the vehicle width direction W, and are stacked in three layers in the thickness direction (height direction H).

[0128] The harness connector 20I and the harness routing structure 1 equipped with the harness connector 20I configured in this way can provide the same functions and effects as the harness connector 20 and the harness routing structure 1 equipped with the harness connector 20 of the first embodiment described above, as well as the following functions and effects.

[0129] Specifically, in the curved portion R, the first diameter connecting wire assembly 20Ya, the third diameter connecting wire assembly 20Yc, and the second diameter connecting wire assembly 20Yb are arranged in this order from the outer Ro in the direction of curvature, where the bending radius is larger than that of the inner side in the direction of curvature, toward the inner Ri in the direction of curvature. This allows for an increase in the number of circuits, suppresses a decrease in the curvature of the harness connector 20I, and enables the harness connector 20I in the harness routing structure 1 to smoothly curve and follow the sliding of the slide sheet 100.

[0130] (11th embodiment) Next, the harness connector 20J of the 11th embodiment will be described with reference to Figure 9(b). Figure 9(b) is a longitudinal cross-sectional view of the harness connector 20J of the 11th embodiment.

[0131] In the 11th embodiment, the harness connector 20J has one of the two flat cables 20X that were stacked on the inner side Ri in the curved direction in the harness connector 20I of the 10th embodiment, placed between the first diameter connecting wire assembly 20Ya and the third diameter connecting wire assembly 20Yc, and the other flat cable 20X is placed between the third diameter connecting wire assembly 20Yc and the second diameter connecting wire assembly 20Yb.

[0132] The harness connector 20J configured in this way and the harness routing structure 1 equipped with the harness connector 20J can provide the same functions and effects as the harness connector 20 of the first embodiment and the harness routing structure 1 equipped with the harness connector 20 described above, as well as the same functions and effects as the harness connector 20B of the third embodiment, the harness connector 20I of the tenth embodiment, and the harness routing structure 1 equipped with harness connectors 20B and 20I described above.

[0133] (12th embodiment) Next, the harness connector 20K of the 12th embodiment will be described with reference to Figure 10. Figure 10 is a longitudinal cross-sectional view of the harness connector 20K of the 12th embodiment.

[0134] In the harness connector 20K of the 12th embodiment, one of the two flat cables 20X that were stacked on the inner side Ri in the curved direction in the harness connector 20I of the 10th embodiment is placed between the third diameter connecting wire assembly 20Yc and the second diameter connecting wire assembly 20Yb, and a partition sheet 26 is placed between the first diameter connecting wire assembly 20Ya and the third diameter connecting wire assembly 20Yc.

[0135] The harness connector 20K and the harness routing structure 1 equipped with the harness connector 20K configured in this way can provide the same functions and effects as the harness connector 20 of the first embodiment and the harness routing structure 1 equipped with the harness connector 20 described above, as well as the same functions and effects as the harness connector 20B of the third embodiment, the harness connector 20D of the fifth embodiment, the harness connector 20I of the tenth embodiment, and the harness routing structure 1 equipped with harness connectors 20B, 20D, and 20I described above.

[0136] In the correspondence between the structure of this invention and the embodiments described above, the vehicle body of this invention corresponds to the floor panel 200, The same applies to the following: The vehicle-side harness corresponds to vehicle-side harness 2. The designated direction corresponds to the vehicle's longitudinal direction L. The sliding body corresponds to the sliding sheet 100. The slide-side harness corresponds to the seat-side harness 3. The opposing direction corresponds to the height direction H. The width direction corresponds to the vehicle width direction W. The conductor cross-sectional area corresponds to the cross-sectional area of ​​conductor 12. The power line corresponds to power line 11, The wire assembly corresponds to wire assembly 10. The large diameter wire assembly corresponds to the large diameter wire assembly 10X. Other wire bundles correspond to other wire bundles 10Y. The flattened conductor corresponds to the flattened conductor 21X and the flattened thick-walled conductor 21Xa. The insulating sheet corresponds to insulating sheet 22X. The flat cable is compatible with flat cable 20X and flat thick cable 20Xa. The connecting wire corresponds to connecting wire 21Y. The connecting wire assembly corresponds to the connecting wire assembly 20Y, the first diameter connecting wire 21Ya, the second diameter connecting wire 21Yb, and the third diameter connecting wire 21Yc. The curved part corresponds to the curved part R, The outer diameter of the curved portion corresponds to the outer Ro in the curvature direction of the curved portion R. The surrounding body and braided tube correspond to the braided tube 30. The first diameter connecting wire assembly corresponds to the first diameter connecting wire assembly 20Ya. The harness connector corresponds to the harness connector 20. The first diameter connecting wire corresponds to the first diameter connecting wire 21Ya, The second diameter connecting wire corresponds to the second diameter connecting wire 21Yb. The second diameter connecting wire assembly corresponds to the second diameter connecting wire assembly 20Yb. The divider sheet corresponds to divider sheet 26. Although the harness routing structure corresponds to harness routing structure 1, this invention is not limited to the configuration of the above-described embodiment, and many embodiments can be obtained.

[0137] For example, the sliding direction of the sliding seat 100 is set to the vehicle body longitudinal direction L, along the seat rail 201 which extends in the vehicle body longitudinal direction L. However, it may also be configured to slide in the vehicle width direction W, or it may be configured to slide in a direction that combines the vehicle body longitudinal direction L and the vehicle width direction W.

[0138] Furthermore, although the above description describes a configuration in which power is supplied from the vehicle body to a connected object provided on the sliding seat 100, it is also possible to configure the system to supply power to connected objects other than the sliding seat 100, such as a console box including the center console or a sliding door.

[0139] In the above explanation, the same wire was used for the wire assembly 10 (wire 11) and the connecting wire 21Y that constitutes the harness connector 20, but different wires may be used. Specifically, the conductor 12 that constitutes the wire 11 and the conductor 22Y that constitutes the connecting wire 21Y may be made of different materials, as long as they have equivalent conductivity. [Explanation of symbols]

[0140] 1…Harness routing structure 2…Vehicle-side harness 3…Seat-side harness 10... Electric wire assembly 10X…Thick diameter wire set 10Y... Other wire sets 11...Electric wire 12... Conductor 20…Harness connector 20X... Flat cable 20Xa…Flat, thick-walled cable 20Y…Connection wire set 20Ya…1st diameter connecting wire assembly 20Yb... Second diameter connecting wire assembly 21X…Flat conductor 21Xa…Flat, thick-walled conductor 21Y…Connection wire 21Ya…1st diameter connecting wire 21Yb…2nd diameter connecting wire 22X…Insulating sheet 26... Partition sheet 30… Braided tubing 100...Slide sheet 200... Floor panel H...height direction L...vehicle body front-to-back direction W...vehicle width direction R...Curved part Ro... Outward direction of curvature

Claims

1. The vehicle-side harness routed to the vehicle body, A slide-side harness connected to a connected object provided on a slide body that slides in a predetermined direction relative to the vehicle body, A harness connector is provided that connects the vehicle body-side harness and the slide-side harness. The harness connector is The cable is routed along the predetermined direction, and a curved portion is formed that is bent in the predetermined direction and curves in the thickness direction, The curved portion is configured to move and follow the predetermined direction as the sliding body slides in that predetermined direction. The direction in which the vehicle body and the slide body face each other is defined as the opposing direction, and the direction that intersects the predetermined direction and the opposing direction is defined as the width direction. The vehicle body-side harness and the slide-side harness are provided with three or more sets of wire assemblies, each consisting of multiple wires with equal conductor cross-sectional areas arranged in parallel in the width direction, such that the conductor cross-sectional areas of the wires constituting the set are of at least three different types. The wire set consisting of the wire with the largest conductor cross-sectional area among the three or more wire sets shall be designated as the large-diameter wire set, and the wire sets that are different from the large-diameter wire set among the three or more wire sets shall be designated as other wire sets. Flat conductors with a flattened cross-section, connected to the wires of the aforementioned large-diameter wire assembly, are arranged at predetermined intervals in the width direction, and an insulated flat cable, Multiple connecting wires are arranged in parallel in the width direction, with the same number of connecting wires as the wires constituting the other wire sets, and each of the other wire sets is connected to a plurality of connecting wire sets, The device is equipped with a surrounding body that surrounds the flat cables and the connecting wire assemblies, which are stacked in a thickness direction perpendicular to the width direction. Of the aforementioned connecting wire sets, the first diameter connecting wire set, in which the connecting wires constituting it are larger in diameter than the connecting wires constituting the other connecting wire sets, is positioned on the outer diameter side of the curved portion. Harness routing structure.

2. The length of the flat cable in the width direction is longer than the length of the aforementioned connecting wire assembly in the width direction The harness routing structure according to claim 1.

3. The surrounding body is a braided tube made by weaving fibers into a tubular shape. The harness routing structure according to claim 1.

4. The aforementioned connecting wire assembly is The aforementioned first diameter connecting wire assembly, The system is equipped with a second diameter connecting wire assembly, which is composed of second diameter connecting wires that are smaller in diameter than the first diameter connecting wires that make up the first diameter connecting wire assembly. The harness routing structure according to claim 1.

5. From the outer diameter of the curved portion toward the inner diameter, The first diameter connecting wire assembly, the second diameter connecting wire assembly, and the flat cable are stacked in this order in the thickness direction. The harness routing structure according to claim 4.

6. A partition sheet made of an insulating sheet is placed between the first diameter connecting wire assembly and the second diameter connecting wire assembly. The partition sheet is formed to have a width length greater than or equal to the width length of the connecting wire assembly. The harness routing structure according to claim 5.

7. The flat cable has flat conductors that are less than or equal to the number of wires constituting the large-diameter wire set, and multiple such conductors are provided. The total number of flat conductors in the multiple flat cables is equal to or greater than the number of wires that make up the large-diameter wire assembly. A harness routing structure according to any one of claims 1 to 6.

8. Multiple of the aforementioned flat cables are stacked together. The harness routing structure according to claim 7.

9. The connecting wire assembly is arranged between multiple flat cables. The harness routing structure according to claim 7.

10. A harness connector that connects a vehicle-side harness routed to the vehicle body and a slide-side harness connected to a connected object provided on a slide body that slides in a predetermined direction relative to the vehicle body, The cable is routed along the predetermined direction, and a curved portion is formed that is bent in the predetermined direction and curves in the thickness direction, The curved portion is configured to move and follow the predetermined direction as the sliding body slides in that predetermined direction. The direction in which the vehicle body and the slide body face each other is defined as the opposing direction, and the direction that intersects the predetermined direction and the opposing direction is defined as the width direction. The vehicle body-side harness and the slide-side harness are provided with three or more sets of wire assemblies, each consisting of multiple wires with equal conductor cross-sectional areas arranged in parallel in the width direction, such that the conductor cross-sectional areas of the wires constituting the set are of at least three different types. The wire set consisting of the wire with the largest conductor cross-sectional area among the three or more wire sets shall be designated as the large-diameter wire set, and the wire sets that are different from the large-diameter wire set among the three or more wire sets shall be designated as other wire sets. Flat conductors with a flattened cross-section, connected to the wires of the aforementioned large-diameter wire assembly, are arranged at predetermined intervals in the width direction, and an insulated flat cable, Multiple connecting wires are arranged in parallel in the width direction, with the same number of connecting wires as the wires constituting the other wire sets, and each of the other wire sets is connected to a plurality of connecting wire sets, The device is equipped with a surrounding body that surrounds the flat cables and the connecting wire assemblies, which are stacked in a thickness direction perpendicular to the width direction. Of the aforementioned connecting wire sets, the first diameter connecting wire set, in which the connecting wires constituting it are larger in diameter than the connecting wires constituting the other connecting wire sets, is positioned on the outer diameter side of the curved portion. Harness connector.

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