JP4177037B2 - Wiring harness wiring structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wiring structure of a wire harness such as an automobile, and more particularly to a wiring structure of a wire harness capable of wiring a branch wire harness to a main wire harness with a large degree of freedom.
[0002]
[Prior art]
An example of a conventional wiring structure for a wire harness such as an automobile is shown in FIG. 8 (see JP 2001-210413 A).
In FIG. 8, the automotive wire harness 3 is a combination of a plurality of branch wire harnesses 3a, 3b, 3c formed for each system connected to each auxiliary machine. A plurality of electric wires 4 constituting each branch wire harness 3a, 3b, 3c are juxtaposed on each interlayer connection insulating plate 7a, 7b, 7c corresponding to each branch wire harness 3a, 3b, 3c. Yes. The plurality of interlayer connection insulating plates 7a, 7b, 7c are stacked one above the other. The desired circuit is formed by appropriately penetrating a plurality of through-connection conductors 8 through the interlayer connection insulating plates 7a, 7b, 7c, and short-circuiting the predetermined electric wires 4 between the different interlayer connection insulation plates 7a, 7b, 7c. I will do it.
In addition, a branch insulating plate 2 is disposed at an intermediate position in the longitudinal direction of the branch wire harnesses 3a, 3b, and 3c as required, and a further branch wire harness 5 is pulled out. The branching insulating plate 2 includes an insulating substrate 2b and a lid 2a that covers the insulating substrate 2b. Reference numeral 9 denotes a connector connected to the branch wire harness 5.
[0003]
[Problems to be solved by the invention]
However, the wiring harness wiring structure described above has the following problems. That is,
1) The connection of the desired electric wire 4 between the laminated branch wire harnesses 3a, 3b, and 3c is performed by penetrating the through-connection conductor 8 through the interlayer connection insulating plates 7a, 7b, and 7c.
Therefore, the arrangement pattern of the electric wires 4 of the branch wire harnesses 3a, 3b, and 3c is restricted, and the degree of freedom in arrangement is small, so that the design change becomes difficult. Moreover, it is necessary for the drawing-out directions of the electric wires 4 of the branch wire harnesses 3a, 3b, and 3c to be the same direction, and there is no degree of freedom.
2) If the number of laminated interlayer connection insulating plates 7a, 7b, 7c is increased, it becomes difficult to penetrate the through connection conductor 8 through the interlayer connection insulating plates 7a, 7b, 7c, and the connection workability is improved. descend.
3) Since it is necessary to provide a through-hole through which the through-connecting conductor 8 passes between the grooves for setting the electric wires 4 of the interlayer connection insulating plates 7a, 7b, 7c, there is a limit to reducing the arrangement pitch of the electric wires 4. Therefore, there is a limit to downsizing the interlayer connection insulating plates 7a, 7b, and 7c.
[0004]
[Means for Solving the Problems]
The present invention has been made to solve the above problems, and the invention according to claim 1 is a wiring structure of a wire harness formed by combining a plurality of individual wire harnesses, and is a conductor of an individual wire harness for a trunk line. At least one connecting insulating plate having a plurality of grooves provided on one side with through holes for arranging the wires in parallel, and a plurality of through holes for arranging the conductors of the individual wire harnesses for branch lines in parallel. A plurality of connection insulating plates with grooves provided on one surface, and a plurality of conductors constituting each individual wire harness are arranged in parallel on one surface of each connection insulation plate corresponding to each individual wire harness is, if desired, jumper wire through the through hole in the surface opposite to the conductor in parallel arrangement surface of the connecting insulation plates, enameled wire, ribbon wire, or Connected to the connection conductor consisting Rekishiburu circuit board, via the connecting conductor connecting the other the conductor and electrically separate wire harnesses, said plurality of connecting the insulating plate that are connected to each other at respective outer edges It is the wiring structure of the wire harness characterized by this.
[0005]
According to the first aspect of the present invention, the conductors constituting the individual wire harnesses for the main line and the branch line are jumper wires and enamel wires through the through holes on the surface opposite to the surface on which the connection insulating plate is arranged in parallel. A conductor to be connected by selecting a through-hole because it is connected to a connection conductor made of a ribbon electric wire or a flexible circuit board and electrically connected to a conductor of another individual wire harness through the connection conductor Can be changed freely.
Therefore, the plurality of conductors of the individual wire harness are not restricted in the arrangement order on the connection insulating plate, and the degree of freedom of design change is increased.
Moreover, it is not necessary to align the lead-out directions of the conductors of the individual wire harnesses. Therefore, it is preferable to pull out the conductor of the individual wire harness in the direction of the installation position of the connected auxiliary equipment part, for example, in a vehicle.
Furthermore, since the conductor connection work is performed on the connection insulating plate which is a flat plate, the conductor connection workability between the individual wire harnesses is good.
[0006]
Further, since the through holes for connecting the conductors are provided so as to penetrate through the grooves for arranging the conductors in parallel, the arrangement pitch of the conductors does not increase by providing the through holes. The connecting insulating plate will not increase in size.
[0007]
In addition, with the individual wire harness in this invention, the individual wire harness formed for every system, every wire diameter, or every electric current value is included. For example, individual wire harnesses for each system include individual wire harnesses connected to each auxiliary machine such as vehicle headlamps, door locks, power windows, and meters, and steering, meters, center clusters, air conditioners, doors, etc. Including an individual wire harness connected to each sub-module in which auxiliary machines are sub-modules for each area.
[0008]
The individual wire harness includes a plurality of covered electric wires, enamel wires or ribbon electric wires arranged in parallel, a flexible printed circuit (FPC), a flexible flat cable (FFC), and the like. Such an individual wire harness is linear, and can be easily routed by an automatic machine, and the routing automation rate can be increased.
[0009]
The wire harness according to the present invention can be applied to harnesses such as an instrument panel / harness, a cowl / harness, a floor harness, a roof harness, and a rear room harness of a vehicle.
[0010]
The invention according to claim 2 is the invention according to claim 1, wherein the plurality of connecting insulating plates are six connecting insulating plates forming a quadrangle, and the six connecting insulating plates are They are connected to each other at their outer edges so as to form a hexahedron.
According to the present invention, since the six connecting insulating plates are connected to each other to form a hexahedron, the flat plate can be easily developed and assembled.
[0011]
According to a third aspect of the present invention, in the first aspect of the invention, the plurality of connection insulating plates are connected to each other at their outer edges so as to form a ring shape. .
According to the present invention, since the plurality of connection insulating plates are connected to each other to form a ring shape, the flat plate can be easily developed and assembled.
[0012]
According to a fourth aspect of the present invention, in the first aspect of the first, second, or third aspect, the electronic component is housed in a coupling body formed by coupling the connecting insulating plates. Is.
According to the present invention, it is possible to improve the mounting density by housing the electronic components in the connection body formed by connecting the insulating plates for connection, and to eliminate the need for a case for protecting the electronic components, The number of parts can be reduced.
[0013]
Further, the invention according to claim 5 is the invention according to claim 3, wherein the individual wire harness is routed along a vehicle body structure in a vehicle, and the plurality of connection insulating plates are ringed to the vehicle body structure. It is characterized by being wound and fixed in a shape.
According to the present invention, a plurality of connection insulating plates can be wound around and fixed to a vehicle body structure in a ring shape, so that the mountability is improved.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of an essential part showing an embodiment of a wiring harness wiring structure according to the present invention. FIGS. 2A and 2B are developed perspective views of the embodiment. 3A and 3B are a perspective view and a side view, respectively, showing a state in which conductors are arranged in parallel on the connection insulating plate of the embodiment. Furthermore, FIG. 4 is an explanatory view of a connection structure between the connection insulating plates in the embodiment.
[0015]
The wire harness 10 of the present embodiment is a combination of six individual wire harnesses, that is, three trunk wire harnesses 11, 12, and 13 and three branch wire harnesses 14, 15, and 16. The trunk wire harnesses 11, 12, 13 and the branch wire harnesses 14, 15, 16 are each composed of a flat circuit body in which electric wires 20 that are a plurality of conductors are arranged in parallel.
A power source or the like (not shown) is connected to the ends of the electric wires 20 of the main wire harnesses 11, 12, 13. A connector 40 is connected to the ends of the electric wires 20 of the branch wire harnesses 14, 15, 16.
[0016]
The electric wires 20 of the main wire harnesses 11, 12, 13 and the branch wire harnesses 14, 15, 16 are arranged in parallel on the connection insulating plates 30 corresponding to the individual wire harnesses as shown in FIG. Has been placed.
Further, the electric wires 20 of the main wire harnesses 11, 12, 13 and the electric wires 20 of the branch wire harnesses 14, 15, 16 are connecting conductors connecting the connecting insulating plates 30 as shown in FIG. Electrical connection is made via a certain jumper wire 50.
[0017]
In the present embodiment, the six connecting insulating plates 30 have a rectangular shape, and the same shape is used for the trunk wire harnesses 11, 12, 13 and the branch wire harnesses 14, 15, 16 as shown in FIG. Thus, they are connected so as to form a hexahedron.
[0018]
As shown in FIGS. 3A and 3B, the connection insulating plate 30 is provided with a plurality of grooves 30 a for arranging the electric wires 20 in parallel on one side. The width of the opening of the groove 30a is narrow so that the arranged electric wire 20 does not fall off. In addition, both ends of the groove 30a are provided with a fastening portion 30b (an overhang portion that narrows the width of the groove 30a) for preventing the longitudinal displacement of the electric wire 20. Further, as shown in FIG. 4 (the fastening portion 30b is omitted), a through hole 30c for connecting the electric wire 20 arranged in the groove 30a to the jumper wire 50 is provided at the bottom of the groove 30a.
[0019]
Further, as shown in FIG. 4, the connecting insulating plate 30 includes a fitting convex portion 30 d and a fitting convex portion 30 d that are connected to outer edges (four sides of the quadrangle in this embodiment). A fitting hole 30e to be fitted is provided. The connecting insulating plate 30 is fitted with the mating connecting insulating plate 30 at the outer edge by fitting the fitting convex portion 30d into the fitting hole 30e of the mating connecting insulating plate 30.
[0020]
As shown in FIG. 2B, the electrical connection between the electrical wires 20 of the trunk wire harnesses 11, 12, and 13 and the electrical wires 20 of the branch wire harnesses 14, 15, and 16 is performed by the electrical wires 20 of the connection insulating plate 30. In the through hole 30c on the surface opposite to the arrayed surface, the jumper wire 50 and the electric wire 20 are connected and the jumper wire 50 is used. The connection between the jumper wire 50 and the electric wire 20 is performed, for example, by attaching electrodes so as to sandwich the jumper wire 50 and the electric wire 20 from both sides of the connection insulating plate 30 and welding them.
[0021]
In the present embodiment, each of the six connecting insulating plates 30 is connected so as to form a right angle with each other at four sides forming the outer edge, thereby forming a hexahedron. Therefore, in this embodiment, an electronic component (for example, an electronic unit, a fuse, a relay, etc.) can be accommodated in the hexahedron formed by the six connection insulating plates 30, and the mounting density can be improved. In addition, since the hexahedron formed by the connection insulating plate 30 also has a function of a case for protecting the electronic components accommodated therein, the accommodated electronic components can eliminate the need for a protective case. Can be reduced.
[0022]
FIG. 5 is a developed perspective view when the electronic board 60 is accommodated as an electronic component in the hexahedron formed by the six connection insulating plates 30. The electronic board 60 is laminated on the surface opposite to the conductor arrangement surface of the connection insulating plate 30 in which the conductors of the main wire harness 11 are arranged in parallel, and three jumper wires 50 are connected by welding or soldering. It is electrically connected to the insulating plate 30 for connection.
[0023]
Next, another embodiment will be described with reference to FIGS.
The wire harness 10 of this embodiment is a combination of three main wire harnesses 11, 12, 13 and three branch wire harnesses 14, 15, 16 as shown in FIG. The connecting insulating plates 30 having six quadrangles are connected in an annular shape at the outer edge with the parallel arrangement surface of the electric wires 20 facing outside. As shown in FIG. 6B, which is an exploded view, the electrical connection between the electric wires 20 of the main wire harnesses 11, 12, and 13 and the electric wires 20 of the branch wire harnesses 14, 15, and 16 Similarly, it is performed via the jumper wire 50.
[0024]
In the present embodiment, the six connecting insulating plates 30 can be mounted so as to be wound around the reinforcement (vehicle body structural material) or the like via an insulating layer (not shown), and the mounting property is improved. Therefore, what assembled the wire harness of this embodiment to reinforcement can be handled as a composite component.
Moreover, in this embodiment, the connection insulation plate 30 provided with the common circuit part common to a plurality of vehicle types can be wound around the reinforcement in advance, and the connection insulation plate of the system part having different specifications for each vehicle type such as equipment can be added. If so, it is more preferable. As a method of adding the connection insulating plate, for example, on the common connection insulating plate 30 wound in advance, the connection insulating plates having different specifications for each vehicle type are annularly stacked. The connecting method of the additional connection insulating plate is performed, for example, by fitting a fitting convex portion with a hinge structure into the fitting hole of the mating connection insulating plate.
[0025]
As shown in FIG. 6 (b), the wire harness 10 of still another embodiment is formed by connecting six connecting insulating plates 30 having a rectangular shape in a straight line at the outer edge, and connecting these insulating plates 30 to each other. As shown in FIG. 7, it is folded through an insulating layer (not shown). In the present embodiment, the connecting structure of the connection insulating plate 30 is downsized as compared with the two embodiments described above.
[0026]
According to the said embodiment, the electrical connection of the electric wire 20 of the trunk wire harnesses 11, 12, and 13 and the electric wire 20 of the branch wire harnesses 14, 15, and 16 arranged the electric wire 20 of the insulating plate 30 for a connection. This is performed through the jumper wire 50 in the through hole 30c on the surface opposite to the surface, and the jumper wire 50 can select the through hole 30c and freely determine the connection position.
Therefore, the arrangement order of the electric wires 20 of the trunk wire harnesses 11, 12, 13 and the branch wire harnesses 14, 15, 16 can be freely changed, and the design can be changed. Moreover, since the connection of the electric wire 20 and the jumper wire 50 is performed on the flat insulating plate 30 for connection, the connection workability between the electric wires 20 is also improved.
[0027]
Moreover, since the through holes 30c for connecting the electric wires 20 are provided so as to penetrate the bottoms of the grooves 30a, the arrangement pitch of the grooves 30a is not restricted by providing the through holes 30c. Therefore, it is not necessary to increase the arrangement pitch of the electric wires 20 by considering the connection.
[0028]
Furthermore, the insulating plate 30 for connection can reduce the kind of shape by sharing the shape for the trunk wire harnesses 11, 12, 13 and the wire harnesses 14, 15, 16 for branch lines.
Moreover, when mounting in a vehicle, the connection structure of the connection insulating plate 30 can be set with a degree of freedom in accordance with the vehicle body structure, and the drawing direction of the electric wire 20 can also be set with a degree of freedom.
[0029]
In the present invention, the individual wire harness is not limited to the trunk wire harness and the branch wire harness, and the number thereof is not limited to six.
In addition, the connection conductors that connect the conductors between the insulating plates for connection are not limited to jumper wires, but include enameled wires, ribbon electric wires, and the like. Furthermore, for example, a flexible circuit body (FPC) in which a required circuit is formed , FFC, etc.).
Further, the connection method between the conductor of the individual wire harness and the connection conductor in the through hole of the connection insulating plate is not limited to welding. For example, a connection method using solder or a conductive adhesive may be used. A press-contact terminal having a press-contact portion may be fitted into the through hole, and the conductor of the individual wire harness and the connection conductor may be press-contacted and connected to the press-contact portions at both ends.
Further, the shape of the connection insulating plate is not limited to a quadrangle, and may be a polygon such as a triangle or a trapezoid. Further, the connection structure at the outer edge of the connecting insulating plates is not limited to the fitting structure, and may be a structure bonded with, for example, an adhesive or hot melt.
[0030]
Further, the connecting structure of the connecting insulating plate may be a triangular pyramid, a quadrangular pyramid, etc., so that it can be expanded and assembled. In addition, it is more preferable that the connection structure is provided with a common circuit portion common to a plurality of types of vehicles, and can be additionally provided with a connecting insulating plate of a different portion for each vehicle type as necessary.
Moreover, it is preferable to arrange | position the connection structure of the insulating plate for a connection in the branch position of an individual wire harness. For example, it is preferable to arrange in the vicinity of a desired branch position in the longitudinal direction of the main wire harness (position where the branch wire harness such as the steering, center cluster, meter, and joint box on both sides is branched).
Furthermore, it is not necessary that the conductors be arranged in parallel on all the connecting insulating plates constituting the wiring structure, and the conductors may be arranged later if necessary.
[0031]
【The invention's effect】
As described above, according to the first aspect of the invention, the following excellent effects can be obtained. That is,
1) The degree of freedom in changing the design of individual wire harnesses constituting the wire harness is increased.
2) The degree of freedom in the drawing direction of the conductors constituting the individual wire harness is increased.
Therefore, by pulling out the conductor of the individual wire harness in the direction of the auxiliary equipment position of the vehicle, the length of the conductor required after assembly at the branch position will not vary. It becomes possible to manage to a certain length. Moreover, the operation | work which bundles a conductor for every path | route of a destination becomes unnecessary at the time of the branch operation | work by the assembly (ASSY) board of a wire harness, and the manufacturing process of a wire harness is simplified. Furthermore, the workability of assembling to the vehicle is improved.
3) It is possible to automate the wiring of the conductors of the individual wire harness to the connection insulating plate, improve the workability of connecting the conductors of the individual wire harness, and make the connection insulating plate common. Is reduced.
4) The wiring harness wiring structure is downsized.
[0032]
Moreover, according to the invention of Claim 2, 3, there exists the outstanding effect that the expansion | deployment to a plane and an assembly are easy.
[0033]
According to the invention described in claim 4, the packaging density can be improved by housing the electronic component in the coupling body formed by coupling the connecting insulating plates, and a case for protecting the electronic component is not required. There is an excellent effect that the number of parts can be reduced.
[0034]
Furthermore, according to the invention described in claim 5, it is possible to wrap and fix a plurality of connection insulating plates around the vehicle body structure in a ring shape, and there is an excellent effect that the wearability is improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a main part of an embodiment of a wiring harness wiring structure according to the present invention.
FIGS. 2A and 2B are development perspective views of the embodiment. FIG.
3A and 3B are a perspective view and a side view, respectively, showing a state in which conductors are arranged in parallel on the connection insulating plate of the embodiment.
FIG. 4 is an explanatory diagram of a connection structure between connection insulating plates in the embodiment.
FIG. 5 is a developed perspective view when electronic components are accommodated in the embodiment.
FIGS. 6A and 6B are a perspective view and a developed perspective view, respectively, of another embodiment of the wiring structure of the wire harness according to the present invention.
FIG. 7 is a perspective view of still another embodiment of a wiring harness wiring structure according to the present invention.
FIG. 8 is a perspective view for explaining a conventional wire harness wiring structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Wire harness 11, 12, 13 Trunk wire harness 14, 15, 16 Branch wire harness 20 Electric wire 30 Insulation plate 30a Groove 30b Fastening part 30c Through hole 30d Fitting convex part 30e Fitting hole 40 Connector 50 Jumper Wire 60 electronic board

Claims (5)

A wiring harness wiring structure formed by combining a plurality of individual wire harnesses,
In order to parallelly arrange at least one connection insulating plate having a plurality of grooves provided with through holes for arranging conductors of individual wire harnesses for main lines in parallel and conductors of individual wire harnesses for branch lines in parallel A plurality of connecting insulating plates provided on one surface with a plurality of grooves provided with through-holes ,
The plurality of conductors constituting each individual wire harness are arranged in parallel on one surface of each connection insulating plate corresponding to each individual wire harness, and if necessary, the conductor parallel arrangement surface of the connection insulation plate Connected to the connecting conductor consisting of jumper wire, enameled wire, ribbon electric wire, or flexible circuit board through the through hole on the opposite side surface, and electrically connected to the conductor of other individual wire harness through the connecting conductor ,
The wiring harness wiring structure, wherein the plurality of connecting insulating plates are connected to each other at their outer edges. The plurality of connecting insulating plates are six connecting insulating plates forming a quadrangle, and the six connecting insulating plates are connected to each other at their outer edges so as to form a hexahedron. The wiring structure of the wire harness according to claim 1, wherein 2. The wiring harness wiring structure according to claim 1, wherein the plurality of connection insulating plates are connected to each other at respective outer edges so as to form a ring shape. The wiring structure of the wire harness according to any one of claims 1, 2, and 3, wherein an electronic component is accommodated in a coupling body formed by coupling the connection insulating plates. 4. The wire according to claim 3, wherein the individual wire harness is routed along a vehicle body structure in a vehicle, and the plurality of connection insulating plates are wound around and fixed to the vehicle body structure in a ring shape. Harness wiring structure.

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