JP2997730B2 - Connection structure of automotive circuit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention provides a thin circuit body on a roof body in place of an enlarged wire harness on a roof or a floor of an automobile and a circuit on a main body side. The present invention relates to a connection structure of an automotive circuit body to be connected to a connector.

[Conventional technology]

FIG. 4 shows a floor wire harness of an automobile.

The floor wire harness 18 has connectors 19 at both ends and a branch portion thereof, and is routed between the floor portion 21 of the vehicle body 20 and the floor carpet 22, but the wire harness 18 is provided so as not to be stepped on by a passenger. Protector 23 around 18
, Which requires a large amount of wiring space. Furthermore, in recent years, many electronic control units have been arranged in a trunk room along with the digitization, and the floor wire harness 18 itself tends to be enlarged, making it difficult to secure a wiring space. In addition, the floor wire harness 18 must be fixed with a large number of unillustrated clamps in addition to the assembling of the protector 23, and the positioning thereof lacks flexibility due to the presence of the protector 23. It is.

FIG. 5 shows a roof wire harness. The roof wire harness 24 is provided between a roof panel 25 and a roof head lining 26 and a front pillar 27.
And a pillar garnish 28, and are connected to a room lamp 30, a power supply side, and the like via a connector 29. However, since the wiring work of the roof wire harness 24 must be performed in an upward posture, the work is difficult and the burden on the operator is large. In addition, the work of connecting the connector 29 to the connector on the vehicle body side is troublesome and troublesome.

[Problems to be solved by the invention]

In view of the above, the present invention solves the problem of workability associated with the enlargement of the floor wire harness and the wiring of the floor wire harness, and the troublesome connection work between the roof wire harness and the connector on the vehicle body side. It is an object of the present invention to provide a connection structure for a circuit body for an automobile, which can solve the problem.

[Means for solving the problem]

In order to achieve the above object, the present invention provides an automobile in which a vehicle body is divided into a main body and a roof body, a thin circuit body is provided on the roof body, and a connector for connection is provided on the thin circuit body. In the connection structure of the circuit body for use, the roof body includes a cowl panel, a front pillar, a roof panel, a rear pillar, and a package tray, and the thin circuit body is provided at least from the front pillar of the roof body to the rear pillar via the roof panel. A connector following a front end of the thin circuit body is provided on a cowl panel of the roof body, and a connector following a rear end of the thin circuit body is provided on a package tray of the roof body. (1)).

The roof body includes a center pillar, and a thin circuit for branching following the thin circuit is provided from the roof panel to the center pillar, and the thin circuit for branch is provided at an end of the center pillar. A connector is provided, a circuit on the main body side is provided on a center pillar of the main body, a connector is provided on an end side of the center pillar of the main body, and a center pillar of the roof body is provided on the main body. It is also effective that the connector of the thin circuit body and the connector of the circuit are connected by being joined to the center pillar of (2).

[Action]

According to the configuration of claim (1), the power supply in the engine room is connected by the connector on the cowl panel side, and the electronic control unit in the trunk room is connected by the connector on the package tray side. According to the configuration described in claim (2), the floor wire harness is routed from the engine room side to the roof body side through the center pillar through the front seat, and the wire harness needs to be routed to the rear seat side. Disappears. At the same time that the roof body is joined to the main body, the connectors of the respective center pillars are fitted and connected.

〔Example〕

FIG. 1 shows an embodiment of a connection structure for a circuit body for an automobile according to the present invention.

In the figure, 1 is a roof body of an automobile, and 2 is a main body. The roof body 1 is obtained by integrally molding a roof panel 3, a front pillar 4, a center pillar 5, a rear pillar 6, a cowl panel 7, and a package tray 8 with a steel plate or a heat-resistant synthetic resin.

A thin circuit body 9 is provided on the inner surface of the roof body 1, and connectors 10a to 10e connected to the thin circuit body 9 are fixed. As the thin circuit body 9, a printed circuit, a flexible flat circuit, or the like is used. In particular, when the roof body 1 is molded with a synthetic resin, as shown in FIG.
9a can be directly formed on the surface of the roof body 2 by a method such as a transfer method or a plating method, and a resin circuit portion (not shown) is integrally formed by a two-shot method to form a conductive electroless plating film. Means for plating is also possible. Then, the thin protective circuit body 9 is formed by providing the insulating protective film 11 thereon. Here, when the roof body 1 is formed from a steel plate, the thin circuit body 9 may be formed after forming an insulating coating on the surface of the steel plate. When a flexible flat circuit or the like is used, a flat circuit body 9b is bonded to a roof body 1a (a honeycomb board is used in the figure) as shown in FIG. 2 (b).

The thin circuit body 9 is arranged on the roof panel section 3 and the front, center, and rear pillar sections 4, 5, and 6, and the circuit is provided inside the roof panel 3, the center pillar 5, the cowl panel 7, and the package tray 8. Connectors 10a-1 connected to body 9
0e is fixed. Room lamps on connectors 10a-10b
Connect 12 mag directly.

On the other hand, the main body side 2 is provided with fixed connectors for the connectors 10c to 10e of the roof body side 1. FIG. 3 shows a joint state of the connector of the center pillar portion 5. That is, the circuit 13 is provided in the center pillar 5a on the main body side 2 and the pillar 13 is provided.
A connector 14 is fixedly mounted at the tip of 5a, and bolt holes for mounting the roof body 1 are provided at both ends of the pillar 5a.
15,15 are drilled. A connector 10d connected to the thin circuit body 9 and fixing nuts 16 and 16 are provided on the roof body side 1. Bolts 17 are inserted into bolt holes 15 of the main body side 2 so that the fixing nuts 16 are fixed. The connectors 14 and 10d are joined by screwing the connectors. Note that the fixing nut 16 can be fixed by ultrasonic welding or the like when the roof body 1 is a resin body.

〔The invention's effect〕

As described above, according to the invention of claim (1), the power supply in the engine room is connected by the connector on the cowl panel side, and the electronic control unit in the trunk room is connected by the connector on the package tray side. The power supply in the engine room and the electronic control unit in the trunk room can be connected by a thin circuit body on the roof body side without arranging a floor wire harness on the main body. By substituting the floor wire harness with the roof wire harness in this way, the floor wire harness is prevented from being enlarged, and the troublesome work of attaching the floor wire harness to the protector and fixing it to the floor with a clamp is unnecessary. Become.

According to the invention described in claim (2), it is necessary to arrange any wire harness on the rear seat side by allowing the floor wire harness to escape from the engine room side to the roof body side through the center pillar through the front seat. This eliminates the need for the work of mounting the protector and the work of fixing it with a clamp on the rear seat side, and increases the number of circuits of the roof wire harness. In addition, since the roof body is joined to the main body and the connectors of the respective center pillars are fitted and connected to each other, the number of circuit connection steps is reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention, FIGS. 2 (a) and 2 (b) are cross-sectional views showing a mounted state of a circuit body according to the present invention, and FIG. FIG. 4 and FIG. 5 are exploded perspective views showing a conventional example. 1 ... Roof body, 2 ... Main body, 9 ... Thin circuit, 9a ... Printed circuit, 9b ... Flat circuit, 10
a to 10e: Connector, 14: Connector.

Claims (2)

(57) [Claims] 1. A connection structure for a circuit body for an automobile in which a vehicle body is divided into a main body and a roof body, a thin circuit body is provided on the roof body, and a connector for connection is provided on the thin circuit body. Wherein the roof body includes a cowl panel, a front pillar, a roof panel, a rear pillar, and a package tray, and the thin circuit body is provided at least from the front pillar of the roof body to the rear pillar via the roof panel, and a front end of the thin circuit body. And a connector following the rear end of the thin circuit body is provided on a package tray of the roof body. 2. The roof body includes a center pillar, from the roof panel to the center pillar,
A thin circuit body for branching following the thin circuit body is provided,
A connector is provided on the branch thin circuit body at an end of the center pillar, a circuit on the main body is provided on a center pillar of the main body, and the circuit is provided on an end of the center pillar of the main body. A connector is provided on the main body, and a center pillar of the roof body is joined to a center pillar of the main body, so that the connector of the thin circuit body and the connector of the circuit are connected. 1) A connection structure for a circuit body for an automobile according to the above.