JPH0654607B2 - Wire harness device for instrument panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a wire harness device for an instrument panel used for wiring an instrument panel of an automobile.

[Conventional technology]

For example, an instrument panel of an automobile is provided with a large number of instruments, switches, auxiliary equipment such as an electric connection box, loads such as a radio and an air conditioner (hereinafter collectively referred to as electrical components). . Electrical wiring of these electrical components, as shown in prior art FIG. 3, a plurality of branch lines _{w 1, w 2, w 3} ... to Takoashi shape with respect to trunk w ₀ comprising a number of electric wires, the branch Connectors c ₁ and c provided at the ends of the wires
_This is performed using a focusing type wire harness w in which ₂ , c ₃ ... Are combined with various electric components.

However, in such a focusing type wire harness w,
It is not easy to arrange the instrument panel P in a narrow space, and in addition to this, a large number of connectors c ₁ , c ₂ ,
Each c ₃ ... must be manually connected to an electrical component (or an attached connector), which requires a great deal of labor and time, which is an obstacle to speeding up the automobile manufacturing line as well as increasing the cost. It was

Configuration of the Invention [Means for Solving the Problems] Referring to the drawings, a wire harness device for an instrument panel according to the present invention is, as shown in FIG. 1, an instrument panel 10, 10 ′ of an automobile. Are provided with the substrates 4 and 11, and a plurality of electrical components 6, 6 ', 7 selected from a large number of electrical components mounted on the instrument panel are transferred to the substrate, and desired electrical components 6, A circuit conductor 9 for connecting between 6'is provided, and a part of the trunk line 1 of the wire harness W is fixed to the board, and the branch line 2
_{A part of 1} , 2 ₂ , 2 _3, ...
6'and 7 are connected to each other by the connector 3 and the remaining ends of the main line 1 and the branch lines 2 _x , 2 _y ... Are held in a free state separated from the substrates 4 and 11 (first term). ).

Further, it is preferable to provide notches 8 for leading out the separated branch lines 2 _x , 2 _y ... At appropriate places on the periphery of the substrates 4 and 11 (section 2).

〔Example〕

In FIG. 1, reference numeral 1 denotes a trunk line of a wire harness w formed by bundling a plurality of electric wires with a tape, and has a plurality of branch lines 2 ₁ , 2 ₂ , 2 ₃ ... At the end of each branch line. Is provided with a connector 3. The middle portion of the main line 1 is fixed to the substrate 4 with an adhesive, and the electric connection box 5 is connected to both ends separated from the substrate 4. The fixing of the main line 1 to the substrate 4 is also effective by fixing with a clamp, a tightening tool such as a bolt and nut, or integration by molding, in addition to the adhesive method. Reference numerals 6 and 6 ′ are cpu (microcomputers) and 7 is a relay, and these electrical components are fixed in advance on the substrate 4 at predetermined positions. Fixing is done in the same way as main line 1,
It is preferable that a window for mounting electrical components is previously opened on the board 4 so that one-touch fitting and locking can be performed.

A part of the branch lines 2 ₁ , 2 ₂ , 2 ₃ ...
6'and 7 are connected to the connector 3 and the remaining branch line 2
_x , 2 _y ... Are set in a free state separated from the substrate 4. For convenience of wiring and derivation of branch lines in such a free state,
The substrate 4 is provided with a cutout portion (or opening portion) 8.

Reference numeral 9 denotes a circuit conductor, which is formed in a flat shape on the substrate 4 by a method such as printing, vapor deposition or disposing a copper foil, and is a cpu.
It connects between 6 and 6 '.

As described above, when it is necessary to connect the electrical components to each other, by separately providing the circuit conductor 9 that does not pass through the main line 1, it is possible to reduce the number of electric wires of the main line 1 and prevent enlargement.

Reference numerals 10 and 10 'are an upper panel and a lower panel, which are obtained by dividing an automobile instrument panel.

FIG. 2 shows another embodiment of the device of the present invention, which has an inclined portion 11a with a substrate 11 in the middle and left and right horizontal plate portions 11b and 11b.
It is formed as a three-dimensional structure having a step between b '. As described above, the shape of the substrate on which the wire harness w is fixed can be a flat surface or a three-dimensional surface corresponding to the internal structure of an object such as an instrument panel. Reference numeral 12 is a work window.

Assembling of the wire harness w to the instrument panel is performed by fixing a part of the branch lines 2 ₁ , 2 ₂ , 2 _{3 of} the main line 1 fixed to the board 4 to the board as described above. 6 ', 7 and the like are connected by the connector 3, and then the substrate 4 is clamped, screwed or the like to the upper panel 10
, And the unconnected branch lines 2 _x , 2 _y ... Are connected to the electrical components in the upper panel 10 and the lower panel 10 ′, and finally the lower panel 10 ′ is put on.

EFFECTS OF THE INVENTION According to the device of the present invention, a part of a large number of electrical components conventionally fixed in the instrument panel is transferred to the substrate 4 (11). The number of man-hours required for connection by the connector is reduced to half, and the troublesome work of fixing the wire harness w in the narrow space by the stopper is eliminated, so that workability is greatly improved. At the same time, a part of the trunk line and the branch line of the wire harness is fixed to the substrate, so that the trouble such as the connector falling off due to the entanglement of the branch lines is eliminated, which is convenient for transportation and storage.

Further, by providing the circuit conductor 9 for connecting the electrical components to each other on the board 4 (11), the diameter of the trunk wire of the wire harness is reduced and the number of branch wires led out from the trunk wire is also reduced.
The form of the wire harness can be simplified.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the device of the present invention, FIG. 2 is a perspective view showing another embodiment of the device of the present invention, and FIG. 3 is a perspective view of a conventional example. w ... Wire harness, 1 ... Trunk line, 2 ₁ , 2 ₂ , 2 ₃
...... Branch line, 3 ...... Connector, 4 (11) …… Board, 9 ……
Circuit conductor.

Claims (2)

[Claims] 1. A vehicle instrument panel 10, 1
0'is provided with substrates 4 and 11 and a plurality of electrical components 6, 6 ', 7 selected from a large number of electrical components mounted on the instrument panel are transferred to the substrate and desired electrical components A circuit conductor 9 for connecting between 6 and 6'is provided, and a part of the trunk line 1 of the wire harness W is fixed to the board, and part of the branch lines 2 ₁ , 2 ₂ , 2 ₃ ... Is relocated. each of the electrical components 6, 6 ', 7 and attached by a connector 3, and characterized in that the holding ends of the remaining trunk 1 and the branch line 2 _x, 2 y _... a free state of being released from the substrate 4, 11 Wire harness device for instrument panel. 2. A wire harness device for an instrument panel according to claim 1, wherein notches 8 for leading out the free branch lines 2 _x , 2 _y ... Are provided at appropriate places on the peripheral edges of the substrates 4, 11. .