JPH10157533A - Wiring configuration for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the connection work of wire harnesses while the degree of freedom in designing a panel for the vehicle is being kept high, and also simplify the configuration of each wire harness itself. SOLUTION: This wiring configuration allows a circuit board to be mounted onto an instrument panel, to be divided into a center board 31 and a meter board 41. The center board 31 is provided with a harness connecting connector 37, and with a relaying conductor 33, and electrical wires 48 from the meter board 41 are connected with the relaying conductor 33. An electrical wire group 62a for a part of a wire harness is connected with elements over the center board 31 in a state that a connector 66 at the wire harness side is connected with the harness connecting connector 37, and the other electrical wire group 62b is so designed as to be connected with elements over the meter board 41 by way of the relaying conductor 33 and the electric wires 48.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring structure in which a wiring harness is connected to various boards mounted on an instrument panel or the like of a vehicle.

[0002]

2. Description of the Related Art FIG. 6 shows an example of a general instrument panel. The illustrated instrument panel 90 is provided with a center unit 91, a meter unit 92, a lower panel 93, and the like. Each of the center unit 91, the meter unit 92, and the lower panel 93 includes a center board 94, a meter board 95, and a lower panel board 96 as shown in FIG.
A control circuit, a switch circuit, an air conditioner circuit, and the like are mounted on the center board 94, various instruments and their driving motors are mounted on the meter board 95, and various switch circuits and the like are mounted on the lower panel board 96. Further, each substrate 94,
95, 96 are board connectors 97, 98, 9 respectively.
9 are provided.

On the other hand, a wire harness 100 arranged on the back of an instrument panel 90
Branch lines 101, 102, 10 corresponding to 4, 95, 96
3, the connectors 104, 105, and 106 are provided at the terminals of the branch lines 101, 102, and 103, respectively, and these connectors 104, 105, and 106 are connected to the connectors 97, 98, and 99, respectively. Accordingly, the wire harness 100 is connected to the circuit mounted on each of the substrates 94, 95, and 96.

[0004]

In order to carry out the wiring described above, first, a substrate 94 is mounted on the instrument panel 90.
96 are attached, and then the connectors 104 to 106 of the wire harness 100 are connected to the connectors 97 to 99 on the assembly line. Therefore, on the assembly line, it is necessary to connect the substrates 94 to 96 with the wire harness 100 by the number of times equal to the number of the substrates 94 to 96, which hinders the production efficiency. Further, complication of the wire harness 100 itself is inevitable.

[0005] As means for solving such inconveniences,
It is also known to unify the board attached to the instrument panel 90 and provide a connector on this board to reduce the number of connection points with the wire harness 100. It is unavoidable that the substrate becomes complicated, and the cost of the substrate itself increases. Also,
The layout of the components on the board is constrained by the shape of the board itself, and as a result, the design and design of the entire instrument panel 90 are greatly restricted, causing inconvenience.

In view of such circumstances, the present invention facilitates the connection work of a wire harness and keeps the structure of the wire harness itself simple while maintaining a high degree of freedom in designing a vehicle panel. The purpose is to provide.

[0007]

According to the present invention, there is provided a wiring structure for a vehicle in which a circuit board is mounted on a vehicle panel and a wire harness is connected to the circuit board. The circuit board is divided into a first board and a second board, and the first board has a harness connection connector connectable to the wire harness side connector, and a relay connected to the harness connection connector. And the relay conductor is connected to the element provided on the second substrate, and the wire harness side connector and the harness connection connector are connected to each other, and A part of an electric wire is connected to the element provided on the first substrate via the harness connection connector, and another electric wire is connected to the harness connection connector. And via the relay conductor is obtained by adapted to be connected to the elements on the second substrate.

According to this structure, the first substrate and the second substrate are attached to the panel in advance, and the relay conductor of the first substrate is connected to the element on the second substrate. On the assembly line, the wiring harness can be simultaneously connected to the elements on both substrates by a simple operation of only connecting the connector on the wiring harness side to the harness connection connector on the first substrate. Moreover, the first substrate and the second substrate
Since the relative position with respect to the substrate can be set freely, the degree of freedom in designing the panel is increased as compared with the case where both substrates are integrated.

The connection between the relay conductor and the element on the second substrate can be made, for example, by extending the relay conductor and directly connecting the relay conductor to the second substrate. If the element on the substrate 2 is connected via an electric wire,
The relative positions of both substrates can be flexibly changed, and assembly to the panel becomes easy.

In this case, the terminal of the electric wire may be directly connected to the relay conductor by soldering or the like, but the first board connection connector connected to the relay conductor is provided on the first board. And a second board connection connector to be connected to the first board connection connector is provided at the end of the electric wire led out from the second board, and the relay board is connected by the connection of the two board connection connectors. If the conductor and the element on the second substrate are connected via the electric wire,
After the two boards are attached to the panel, the relay conductor and the electric wire can be easily connected by coupling the two board connecting connectors.

[0011]

FIG. 1 shows a first embodiment of the present invention.
This will be described with reference to FIG.

The instrument panel 10 shown in FIG.
Has a center unit mounting portion 12, an audio device mounting opening 14, a meter unit mounting portion 16, and a lower panel mounting portion 18, and a lens 20 is mounted on the surface of the meter unit mounting portion 16. . And
The center unit 30 is attached to the back of the center unit
However, a meter unit 40 is provided on the back surface of the meter unit mounting portion 16, and a lower panel (not shown) is provided on the back surface of the lower panel 18.
Each can be attached.

The center unit 30 has a center board (first board) 31 as shown in FIG. On its front side, a display unit 32 for displaying time and the like, a hazard switch 34A, a rear defogger switch 34B,
A switch 35 for an air conditioner, a switch 36 for a clock, and the like are mounted, and a control circuit (not shown) for controlling operations of a clock, an air conditioner, and the like, a harness connector 37, a board connector (a first board connection) 1) and a plurality of relay conductors 33 as shown in FIG. Each of the relay conductors 33 is disposed between the harness connection connector 37 and the board connection connector 38, and a specific one of the connector terminals of the harness connection connector 37 and a connector terminal of the board connection connector 38. And are connected. The entire center unit 30 is housed in a case 39, and the case 39 is fixed to the back surface of the center unit mounting portion 12.

The meter unit 40 has a meter board (second board) 41 as shown in FIG. The fuel meter 42, the speed meter 4
3, tachometer 44, water temperature meter 45, high beam indicator lamp 46, left turn indicator lamp 47
L, indicator lamps 47R for right turn, etc. are mounted, and actuators 42a, 43a, 44a, 4 for driving the hands of the meters 42, 43, 44, 45.
5a is mounted. Each actuator 42a to 45
a and the lamps 46, 47L, 47R, an electric wire 48 is drawn out, and a board connecting connector 49 is connected to an end of the electric wire 48. This board connection connector 49
Are configured to be connectable to the board connection connector 38 of the center board 30.
49, the respective electric wires 48 and the respective relay conductors 33 are connected.
And are connected. The entire meter unit 40 is housed in a case 50, and the case 50 is fixed to the back surface of the meter unit mounting section 12.

Such an instrument panel 10
On the other hand, a wire harness 60 as shown in FIG. The wire harness 60 has a main line 61 and branch portions 62 and 63 branched from the middle of the main line 61, and electrical connection boxes 64 and 65 are connected to both ends of the main line 61, and the branch portions 62 and 63 are connected to each other.
Connectors 66 and 67 are connected to the terminals 63, respectively, and the electric connection boxes 64 and 65 are connected to a circuit (power supply circuit or the like) on the vehicle body side. The connector 66
Is configured to be connectable to the harness connection connector 37 on the center board 31.
It is configured to be connectable to a harness connection connector provided on a lower panel (not shown). Then, the connector 6
As shown in FIG. 5, in a state where the harness connection connector 37 and the harness connection connector 37 are connected, a part of the wire group 62 a of the wire group forming the branch portion 62 is replaced with an element (display unit 32) on the center substrate 31. , Etc.) while the other wires 62b
Is connected to each of the relay conductors 33, and furthermore, the meter board 41 is connected via the board connecting connectors 38 and 49 and the electric wire 48.
The above elements (actuators 42a to 45a and lamp 4
6, 47L, 47R).

In such a structure, the center unit 30 and the meter unit 40 are attached to the instrument panel 10 in advance, and the board connecting connector 49 of the terminal of the electric wire 48 drawn from the meter board 41 is connected to the center board. By connecting the connector 66 of the wire harness 60 to the harness connection connector 37 of the center board 31 on the assembly line of the vehicle by connecting the connector 66 to the board connection connector 38 on the side 31, this operation is simple. Wire harness 60, center board 31, and meter board 32
Can be connected to both substrates at once, and the production efficiency can be improved. Further, compared to the case where the wire harness 60 is individually connected to each of the substrates 31 and 41, the number of branch portions and connectors of the wire harness 60 can be reduced, and the wire harness 60 itself can be simplified. In addition, the two substrates 31 and 32 are completely independent of each other, and the relative positional relationship between the substrates 31 and 32 can be set arbitrarily.
The degree of freedom in the overall design can be kept high.

FIG. 5 shows a second embodiment. Here, the high beam indicator lamp 46, the left turn indicator lamp 47L, and the right turn indicator lamp 47R, which are mounted on the meter substrate 41 in the first embodiment, are mounted on the center substrate 31 side, and these lamps are mounted. Three relay conductors 33 are additionally provided for 46, 47L and 47R, and the lamps 46, 47L and 47R are connected to the connector terminals of the harness connection connector 37 via these relay conductors 33. I have.

When the lamps 46, 47L, 47R are mounted on the center board 31 as described above, the number of electric wires 48 connecting the center board 31 and the meter board 41 and the number of wires for connecting the boards are different from those of the first embodiment. The number of poles of the connectors 38 and 49 can be reduced, and the connection reliability can be further improved.

The embodiments of the present invention are not limited to those described above, and the following embodiments can be taken as examples.

(1) The first substrate and the second substrate in the present invention are not limited to one, and at least one of them may be plural. For example, in addition to the meter board 41, the lower panel is also a second board, and a connector for connecting the board is provided on the lower panel, while the center board 31 which is the first board is provided.
The number of board connection connectors on the side may be increased to two, and these board connection connectors may be connected to the common harness connection connector 37 by a relay conductor. By doing so, the wiring harness 60 can be simultaneously connected to three substrates by a single connection operation of the harness connection connector 37 and the wire harness side connector 66, and the effect of the present invention is further improved. Will increase.

(2) In the above embodiment, the center substrate 31 is the first substrate and the meter substrate 41 is the second substrate. However, the meter substrate 41 is the first substrate, and the center substrate 31 is the second substrate. It is also possible. The vehicle panel to which the present invention is applied is not limited to an instrument panel, and the present invention can be applied to a door panel and various other panels.

(3) In the above embodiment, the electric wires 48 and the relay conductors 33 are connected by using the board connecting connectors 38 and 49.
To the two substrates 3
It is also possible to attach 1,41. However, if the board connection connectors 38 and 49 as described above are used,
There is an advantage that the connection between the relay conductor 33 and the electric wire 48 can be easily performed after the two substrates 31 and 41 are assembled to the instrument panel 10.

(4) In the structure shown in FIGS. 1 and 5, it is possible to omit the electric wire 48 by extending the relay conductor 33 as it is and directly connecting it to the meter substrate 41 as the second substrate. is there. However, in this case, both substrates 3
Whereas the relative positions of the substrates 1 and 41 are fixed by the shape of the relay conductor 33, if the electric wire 48 is used as the connection medium as in the above-described embodiment, the relative positions of the substrates 31 and 41 can be flexibly changed. There are advantages that can be done.

[0024]

As described above, according to the present invention, a circuit board mounted on a vehicle panel is divided into a first board and a second board, and a harness connecting connector of the first board is used as a relay conductor. In the state where the connector for the harness connection and the connector on the wire harness side are connected, a part of the wire of the wire harness is connected to the element on the second substrate via the harness connection connector. Since it is connected to the element provided on the first substrate and other wires are connected to the element on the second substrate via the harness connection connector and the relay conductor,
There is an effect that the work of connecting the wire harness can be facilitated and the structure of the wire harness itself can be simplified without restricting the panel design as in the case of using a single substrate.

Here, if the relay conductor and the element on the second board are connected via an electric wire, the relative positions of the two boards can be flexibly changed, and the assembly to the panel can be made easier. Is obtained.

In this case, a first board connection connector connected to the relay conductor is provided on the first board, and the first board is connected to an end of an electric wire led out from the second board. A second board connection connector to be connected to the connection connector is provided, and the relay conductor and the element on the second board are connected via the electric wire by coupling the two board connection connectors. For example, an effect that the relay conductor and the electric wire can be easily connected by coupling the connectors for connecting both substrates after attaching both substrates to the panel is obtained.

[Brief description of the drawings]

FIG. 1 is a wiring diagram showing a first embodiment of the present invention.

FIG. 2 is a perspective view of an instrument panel and a unit attached to the instrument panel according to the first embodiment of the present invention.

3A is a perspective view of a center unit mounted on the instrument panel, and FIG. 3B is a perspective view of a meter unit mounted on the instrument panel.

FIG. 4 is a perspective view of a wire harness arranged in the instrument panel.

FIG. 5 is a wiring diagram showing a second embodiment of the present invention.

FIG. 6 is a perspective view showing a general example of an instrument panel.

FIG. 7 is an explanatory view showing a conventional example of a wiring structure of a conventional instrument panel.

[Description of Signs] 10 Instrument panel 30 Center unit 31 Center board (first board) 37 Harness connector 38 Board connector (first board connector) 40 Meter unit 41 Meter board (second board) 48) Wire 49 Connector for board connection (connector for second board connection) 60 Wire harness 66 Connector for wire harness side

Claims (3)

[Claims] 1. A circuit board is attached to a panel of a vehicle,
In the wiring structure of a vehicle in which a wire harness is connected to the circuit board, the circuit board is divided into a first board and a second board, and the first board can be connected to the connector on the wire harness side. A connector for connecting the wiring harness and a relay conductor connected to the connector for connecting the harness, and connecting the relay conductor to an element provided on the second substrate. When the wire harness is connected to the harness connection connector, a part of the wire of the wire harness is connected to the element provided on the first substrate via the harness connection connector, and the other wires are connected to the wire harness. A wiring structure for a vehicle, wherein the wiring structure is configured to be connected to an element on the second substrate via a harness connection connector and a relay conductor. 2. The wiring structure for a vehicle according to claim 1, wherein the relay conductor and the element on the second substrate are connected via an electric wire. 3. The wiring structure for a vehicle according to claim 2, further comprising: a first board connection connector connected to the relay conductor on the first board, wherein the first board connection connector is provided from the second board. A second board connection connector to be connected to the first board connection connector at an end of the wire, and the relay conductor and the element on the second board are connected to each other by the connection of the two board connection connectors. A wiring structure for a vehicle, wherein the wiring structure is connected via an electric wire.