JPH0547416B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a wire harness device used in an electrical circuit of an automobile.

BACKGROUND TECHNOLOGY Wire harnesses used in automobile electrical circuits have a structure in which a large number of branch wires are led out from a trunk section in which a large number of electric wires are bundled by tape wrapping, and the trunk section is routed in the space inside the automobile. The branch line is fixed with a stopper, and connected to various electrical components using a connector provided at the end of the branch line.

In the case of such a bundled wire harness, the diameter of the trunk portion increases, making it difficult to wire it in a narrow space inside a car, and with the recent increase in the number of electrical components, this point has become even more difficult. It's becoming a problem.

Therefore, attempts have been made to reduce the weight by using a flat wire harness (flat pattern) consisting of a plurality of parallel flat conductors arranged on an insulating sheet instead of the bundled wire harness.

In this case, even if the main line of the wire harness is replaced with a flat pattern, connections to branch lines, external connectors, relays, and other electrical components will be made by soldering conventional covered wires with terminals. It was difficult to take full advantage of the advantages of the flat pattern because the flat pattern was fixed by attaching the flat pattern or the like.

Problems to be Solved by the Invention The purpose of the present invention is to use a flat pattern,
By stacking and combining these patterns vertically and horizontally, branch lines can be freely formed for the main line of the wire harness, and various electrical components can be directly connected to both sides of these patterns. The purpose of the present invention is to provide wiring harness devices for automobiles.

Means for Solving the Problems In order to achieve the above object, the automotive wire harness device of the present invention has a flat pattern in which a plurality of parallel flat conductors are arranged side by side on an insulating sheet, both vertically and horizontally. An automobile wire harness is formed by arranging them one on top of the other and connecting desired flat conductors in vertical and horizontal patterns, and a plurality of terminals for external connection are provided at predetermined pitches on the desired flat conductors on at least one side of the wire harness. They are arranged and connected, and are provided upright or parallel to the flat conductor as a group of electrodes for connecting electrical equipment such as connectors.

Example In FIG. 1, on one side of the insulating sheet 1,
The flat patterns W ₀ , W ₁ to _{W 4} constituting the door wire harness W are fixed with a bonding agent, bonding tape, etc., and the main connector C ₁ at the end of the flat pattern W ₁ and the flat pattern W ₂ ,
Connectors C ₂ and C ₃ of W ₃ connect the joint to door frame A
A connector C ₄ of a flat pattern W ₄ is connected outward to the cover plate B on the other side.

On the other hand, on the inner surface of the door frame A, there is a connector at the end of the cowl side harness W' of the vehicle body.
C ₁ ′, power window motor 2 connector C ₂ ′ and auto door lock solenoid 3 connector
C ₃ ' is fixed in a predetermined position, and a connector C ₄ ' that connects both the trunk open switch 4 and the power window switch 5 is fixed in a predetermined position on the back side of the cover plate B.

Each of the flat patterns W ₀ to W ₄ is constructed by disposing a plurality of flat conductors 6 on an insulating sheet 7, and the flat pattern W ₀ corresponds to the main line portion of the wire harness described above. On the insulating sheet 1, flat patterns W ₀ are arranged long in the horizontal direction, that is, flat patterns W ₁ to W ₄ are arranged vertically in a lattice shape with respect to the horizontal pattern, and these vertical patterns are arranged in a grid pattern as described above. It is connected as a branch line.

Branch connections between the horizontal pattern and the vertical pattern are made by interposing another insulating sheet 8 with connection holes 7 at required positions between the plurality of flat conductors 6 arranged in a grid pattern vertically and horizontally, as shown in FIG. This is done by fixing the upper and lower flat conductors through the hole 7 by means such as welding, soldering, rivets, or eyelets. Furthermore, this branch connection is performed at a desired position on the horizontal pattern, and the number of connected flat conductors 6 can be freely increased or decreased, so it is possible to derive multiple branch lines from the horizontal pattern as a common pattern. It is possible.

On the other hand, as shown in FIG. 3, the ends of the plurality of flat conductors ₆₁ to ₆₇ of the connectors C ₁ to _{C 4} are cut with steps, and a plurality of L-shaped connections are made to the connectors C 1 to C 4 . It is formed by providing the terminals 9 ₁ to 9 ₇ upright as an electrode group and attaching the connector housing 10 . These terminals 9 ₁ to 9 ₇ are connected to the board portion 9
Adjust the length of a to match the distance between the fixed flat conductors ₆₁ to ₆₇ , and then attach the tab-shaped rising plate part 9b.
By keeping the height constant, it is possible to arrange them at a predetermined pitch.

Figures 4A to 4C show other methods of forming connection terminals, in which A is a method in which L-shaped connection terminals 11 are fixed to the lower surface of a flat conductor 6 whose end surfaces are the same length, and B is a method in which a flat conductor 6 is formed. A method for fixing the connecting terminal 12 in parallel with the flat conductor 6 is to form it as a female connecting terminal 13 with an electric contact part 9c for receiving a tab-shaped terminal at the upper end of the rising plate part 9b, and 9
In this method, a is fixed to the middle part of the flat conductor 6. These connection terminals 9 (9 ₁ to 9 ₇ ) and 1
By providing electrodes 1 to 13 in a concentrated manner at predetermined pitches, electrical components such as connectors and relays can be directly connected to both upper and lower surfaces of the door wire harness W.

In this way, the insulating sheet 11 on which the door wire harness W is formed is properly fixed to a predetermined position of the door frame A, and at the same time, the connectors C ₁ , C ₁ ′,
Combines C ₂・C ₂ ′ and C ₃・C ₃ ′. Next, cover plate B
Attach to door frame A and connect
Combine C ₄ and C ₄ ′.

In the above embodiment, the case where the door wire harness is attached to the door of an automobile has been described, but the present invention can naturally be applied to the case where other wire harnesses are attached to the vehicle body.

Effects of the Invention As is clear from the above, according to the device of the present invention,
By overlapping and combining the horizontal pattern and the vertical pattern, it is possible to derive and form a desired branch line from the main line of the wire harness, and since it itself has a simple matrix structure, it is easy to automate its production. be. In addition, by providing external connection terminals that make up the electrode group at desired positions in the vertical and horizontal patterns, electrical components such as connectors and relays can be directly connected to both the upper and lower surfaces of the wire harness. It is possible to eliminate wasted installation space in conventional wire harnesses having a convergent shape, and to take full advantage of the advantages of wire harnesses formed in a flat shape.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the device of the present invention, Fig. 2 is an explanatory diagram of a branch connection method of the above door wire harness, and Fig. 3 is a formation of connection terminals in the above door wire harness. Explanatory diagrams of the method, FIGS. 4A to 4C are explanatory diagrams of other methods of forming connection terminals, respectively. W...Door wire harness, _W0 ...Flat pattern (horizontal pattern _{), W1 to W4 ...} Flat pattern (vertical pattern), 9 ( ₉₁ to ₉₇ ), 1
1, 12, 13...Connection terminals.

Claims (1)

[Claims] 1. A wire harness for an automobile is formed by arranging flat patterns in which a plurality of parallel flat conductors are arranged side by side on an insulating sheet and stacking them vertically and horizontally, and connecting desired flat conductors in the vertical and horizontal patterns. A plurality of external connection terminals are arranged and connected at a predetermined pitch to a desired flat conductor on at least one side of the wire harness, and the terminals are arranged perpendicularly to the flat conductor as a group of electrodes for connecting electrical equipment such as connectors. Or a wire harness device for an automobile characterized by being provided in parallel.