JP3321497B2 - Car wiring structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wiring structure for connecting a wiring harness in an engine room and a wiring harness in a vehicle.

[0002]

2. Description of the Related Art Usually, in an engine room of an automobile,
Devices such as an engine, a fuse box, and a relay box are mounted, and wire harnesses (engine harness and engine room harness) connected to these devices are connected to wire harnesses connected to indoor devices.

[0003] In this case, generally, a through hole is formed in a lower portion of a dash panel that separates the inside of the engine room from the inside of the engine room, and one wire harness is inserted into the through hole through a grommet. The one wire harness and the other wire harness are connected via a connector in the engine room or the room.

[0004]

However, in the above-mentioned prior art, for example, when performing a wiring work between wire harnesses indoors, it is necessary for an operator to enter the lower part of the instrument panel, which makes it difficult As a result, the work becomes complicated. Also, when wiring the wiring harness on the indoor side to the engine room side and perform wiring work on the engine room side, it is also difficult to connect the wiring harness on the indoor side from the lower part of the instrument panel. turn into.

Particularly, in a panel unit structure in which parts such as a wire harness, an air conditioner, an ABS, an engine ECU, an EAT, a pillar pipe, and an instrument panel are mounted in advance, a through hole formed in a lower portion of a dash panel is formed. This is behind the panel unit body. For this reason, there is a problem that it is impossible to perform the wiring work of the wire harness.

Further, in order to directly connect the engine harness to units such as an engine ECU in a room, a dedicated through hole may be provided in the dash panel separately from the engine room harness. As a result, a problem has been pointed out that the transmitted sound below the dash panel increases.

An object of the present invention is to solve such a problem, and to provide a wiring structure of an automobile in which a wiring work between wire harnesses can be performed easily and efficiently from an engine room side. And

[0008]

In order to achieve the above object, the present invention relates to a wiring structure of an automobile for connecting a wiring harness on an engine room side and a wiring harness on a cabin side, wherein Side wire harness
A first connector provided at the end of the interior side of the follower
The first connector is provided at an end of the ear harness.
The second connector to be connected and the engine room side
The first connector and the second connector are arranged to communicate the engine room and the room with each other.
A cylindrical duct member for accommodating the
A fixing hand provided inside and fixing the second connector.
A step , provided on a cylindrical side portion of the duct member,
Coercive for holding the wire harness of the serial engine room side
Holding means .

[0009]

In the above-described wiring structure for an automobile according to the present invention, a connector for connecting the wire harnesses is provided in a duct member communicating between the engine room and the room. It can be performed from the engine room side. Therefore, the connection work of the wire harness can be performed easily and quickly at once.

Further, the through holes communicating the engine room and the room can be integrated into a single duct member, so that the transmitted sound of the dash panel can be reduced.
In addition, since the connector is provided in the duct member, the connector can be effectively waterproofed.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a wiring structure of an automobile according to the present invention.

In FIG. 1 and FIG.
Shows a body of an automobile to which the wiring structure according to the present embodiment is adopted. An engine room 14 and a room 16 are separated by a dash panel 12 constituting the body 10, and a wiring structure 18 according to the first embodiment is provided below the dash panel 12.

The wiring structure 18 includes a duct member 20 for communicating the engine room 14 and the room 16 with each other, and an engine room harness 22 and an engine harness which are disposed in the duct member 20 and are wire harnesses on the engine room 14 side. 24 for connecting the main harness 26 which is a wire harness on the side of the room 16
a to 28d and fuse connectors 30a to 30c.

The engine room harness 22 is connected to various devices in the engine room 14 as shown in FIG. 3, and has an end connected to connectors 28a and 28b as shown in FIG. Connectors 32a, 32b
And a fuse connector 34 are provided.

The engine harness 24 has one end connected to an engine (not shown) mounted in the engine room 14 and the other end connected to connectors 36a and 36b coupled to the connectors 28c and 28d and a fuse connector 38. Is provided, and a harness 24a further extending from the other end is drawn out toward the room 16 through the inside of the duct member 20, and the end of the harness 24a is provided with an engine EC.
U (to be described later) or a connector 4 connected to an indoor harness
0a to 40c are provided.

As shown in FIG. 3, the main harness 26
Are installed in the panel unit 42 in advance on the room 16 side. The panel unit 42 includes various components such as an instrument panel 44, an air conditioner unit 46, a duct unit (not shown), an engine ECU, and an AB.
Control unit 4 in which S, EAT and TCS are centrally arranged
8 and the like are integrally assembled in advance.

As shown in FIGS. 1 and 2, the main harness 26 is inserted into the duct member 20 from the room 16 side, and connectors 28a to 28d and fuse connectors 30a to 30c are provided at ends thereof. . Connector 2
8a to 28d are connected to the duct member 20 via the fixing means 50.
Fixed inside. The fixing means 50 includes a plurality of stays 52 fixed to the inner wall surface of the duct member 20, and the stays 52 hold the connectors 28a to 28d immovably. On the other hand, fuse connectors 30 a to 30 c, 34 and 38 are movably arranged in duct member 20.

The duct member 20 has a flange portion 54 which is screwed around a through hole 12a formed at a lower portion of the dash panel 12, and is integrally formed with the flange portion 54 via a tubular portion 56. Notches 60a and 60b for fitting the grommets 59a and 59b of the engine room harness 22 and the engine harness 24 are formed in the mounting portion 58 provided. The fuse box 62 is screwed to the mounting portion 58, and the fuse box 62 has the fuse connectors 30a to 3a.
0c, 34 and 38 are connected.

Next, the wiring structure 18 thus configured
Will be described.

First, the main harness 26 on the room 16 side
Is inserted from the panel unit 42 into the duct member 20 through the through hole 12a formed in the lower part of the dash panel 12. The connectors 28a to 28d provided at the ends of the main harness 26
The fuse connectors 30a to 30c are movably arranged in the duct member 20 while being fixed in the duct member 20 through the airbag (see FIG. 1).

Therefore, the engine room harness 22 is
Inserted into the duct member 20 through the notch 60a, the connectors 32a, 32b provided at the ends thereof are connected to the connectors 28a, 28b of the main harness 26, and the fuse connector 34 is inserted into the duct member 20. It is arranged movably.

Further, the engine harness 24 is inserted into the duct member 20 through the notch 60b, and connectors 36a and 36b provided at the ends thereof are connected to the connectors 28c and 28d of the main harness 26, respectively.
A fuse connector 38 is movably disposed in the duct member 20. Further, the harness 24a constituting the engine harness 24 passes through the duct member 20 and passes through the room 16
Connector 40a-
40c is connected to the engine ECU and the indoor harness.

Next, after the fuse connectors 30a to 30c, 34 and 38 are connected to the fuse box 62, the fuse box 62 is screwed to the mounting portion 58 of the duct member 20.

In this case, in this embodiment, the main harness 26 on the room 16 side is disposed in the duct member 20 through the through hole 12a formed in the lower part of the dash panel 12, and the main harness 26 is provided from the engine room 14 side. Main harness 26
And the engine room harness 22 and the engine harness 24 are connected. This eliminates the need for the operator to enter the lower part of the instrument panel 44 as in the case of performing the connection work from the room 16 side, and has the effect of avoiding the connection work due to a difficult posture and improving workability at once. Can be

Further, the through-holes 12 a communicating the engine room 14 and the room 16 can be integrated into a single duct member 20. As a result, dash panel 1
2 has an advantage that the transmitted sound can be easily reduced.
At this time, the soundproofing material can be filled into the duct member 20 from the mounting portion 58 side, and the filling operation is easily performed.

Moreover, the connector 28 is provided in the duct member 20.
a to 28d, 32a, 32b and 36a, 36b and fuse connectors 30a to 30c, 34, and 38 are provided. Therefore, it is possible to effectively waterproof these connector groups, and if these are set to non-waterproof and inexpensive ones, there is an effect that the cost can be easily reduced. In addition, since the fuse box 62 is fixed to the mounting portion 58 of the duct member 20, the waterproof inside the duct member 20 is more reliably performed.

Furthermore, connectors 28 a to 28 d are fixed in the duct member 20 via fixing means 50. Therefore, the work of connecting the connectors 32a, 32b and 36a, 36b to the connectors 28a to 28d can be performed with one hand, and the workability is improved, and the fuse connectors 30a to 30c, 34, and 38 in the free state are accidentally pulled out. There is an advantage that it can be prevented from being performed. On the other hand, fuse connectors 30a to 30c, 34
The and 38 are connected to the fuse box 62, and are arranged movably (in a free state) in the duct member 20, thereby facilitating the connection operation to the fuse box 62.

The main harness 26 inserted into the duct member 20 can be held in the duct member 20. That is, as shown in FIG. 4, a guide member 70 having a U-shape is provided in the duct member 20, and the main harness 26 is inserted into the guide member 70.

Thus, after the main harness 26 led out from the panel unit 42 is held by the guide member 70 and inserted into the duct member 20, the harness 24a of the engine harness 24 is inserted into the duct member 20. Furthermore, there is an advantage that the main harness 26 does not interfere and the operability of the wiring is improved.

It should be noted that a clip 80 can be used instead of the guide member 70 as shown in FIG. The clip 80 is attached to the main harness 26, and the main harness 26 is fixed in the duct member 20 by fitting the clip 80 into a hole 82 formed in the duct member 20. .

Next, the wiring structure 90 according to the second embodiment will be described.
Will be described with reference to FIG. This wiring structure 90
Has a curved portion 96 formed in a flange portion 94 screwed to the dash panel 12. A wire harness 98 on the engine room side is fitted to the curved portion 96 via a grommet 100.

Therefore, in the second embodiment, the effect is obtained that the grommet 100 of the wire harness 98 is sandwiched between the lower surface of the dash panel 12 and the curved portion 96 of the duct member 92 to be sealed in a liquid-tight manner.

Further, in the wiring structure 110 according to the third embodiment shown in FIG.
14, a through-hole 116 is formed.
A wire harness 118 on the engine room side is fitted via a grommet 120. Thereby, the inside of the duct member 112 can be reliably waterproofed.

Further, in the wiring structure 130 according to the fourth embodiment shown in FIG.
4 are provided substantially upward. This mounting part 13
A cut-out portion 138 is formed from 4 toward the cylindrical portion 136, and the wire harness 140 on the engine room side is fitted into the cut-out portion 138 via a grommet 142. The grommet 142 is sandwiched between the duct member 132 and the fuse box 144 to be sealed in a liquid-tight manner. The fuse box 144 is screwed to the duct member 132 and then the cover 146 is attached thereto.

In the wiring structure 130 according to the fourth embodiment, since the mounting portion 134 of the duct member 132 is directed substantially upward, the work of connecting the wire harness 140 is more easily performed, and the workability is improved. The advantage that improvement is achieved is obtained.

In each of the above embodiments, the duct member 2
Although the fuse box 62 and the like are attached to 0 and the like, a relay box can be used instead of the fuse box 62 and the like.

[0037]

According to the wiring structure of an automobile according to the present invention, the following effects and advantages can be obtained.

A connector for connecting the wire harnesses is provided in a duct member communicating between the engine room and the room, so that the work of connecting the wire harnesses can be performed from the engine room side. Therefore, the connection work of the wire harness can be performed easily and quickly at once.

Further, the through holes communicating the engine room and the room can be integrated into a single duct member, and the transmitted sound of the dash panel can be reduced.
In addition, since the connector is provided in the duct member, the connector can be effectively waterproofed, and the connector can be made non-waterproof and inexpensive.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a wiring structure according to a first embodiment of the present invention.

FIG. 2 is a perspective view illustrating a state in which the wiring structure is mounted on a body of an automobile.

FIG. 3 is an explanatory diagram of a wire harness on an engine room side and a room side.

FIG. 4 is a perspective explanatory view of a fixing means for fixing the wire harness in the duct member.

FIG. 5 is a perspective view of another fixing means for fixing a wire harness in the duct member.

FIG. 6 is an explanatory perspective view of a wiring structure according to a second embodiment of the present invention.

FIG. 7 is a perspective explanatory view of a wiring structure according to a third embodiment of the present invention.

FIG. 8 is an explanatory perspective view of a wiring structure according to a fourth embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Body 12 ... Dash panel 14 ... Engine room 16 ... Room 18 ... Wiring structure 20 ... Duct member 22 ... Engine room harness 24 ... Engine harness 26 ... Main harness 28a-28d
... Connectors 30a to 30c ... Fuse connectors 32a and 32b
... Connector 34 ... Fuse connector 36a, 36b
... Connector 38 ... Fuse connector 42 ... Panel unit 50 ... Fixing means 62 ... Fuse box 70 ... Guide member 80 ... Clip 90 ... Wiring structure 100 ... Grommet 110 ... Wiring structure 120 ... Grommet 130 ... Wiring structure 134 ... Mounting part 142 ... Grommet

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-64-30856 (JP, A) JP-A-62-191251 (JP, A) Fully open 1984-143877 (JP, U) Really open 60- 148153 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60R 16/02 620 B60R 16/02 621 H01R 13/73 H02G 3/16 H01R 24/00

Claims (2)

(57) [Claims] 1. A wiring structure for an automobile for connecting a wire harness on an engine room side and a wire harness on a room side , wherein the wiring structure is provided at an end of the wire harness on the engine room side.
A first connector provided at an end of the wire harness on the indoor side;
A second connector connected to the first connector, along with the disposed in an engine room side, communicating the chamber with the engine room with each other, said first connector
A cylindrical duct member for accommodating a second connector and a second connector, the second connector being provided inside the duct member ;
And fixing means for fixing, provided in the cylindrical side portion of the duct member, the motor vehicle characterized in that it comprises a holding means <br/> for holding the wire harness of the engine room side wiring structure . 2. The wiring structure according to claim 1, further comprising a box member accommodating electronic device parts for closing an opening of said duct member on the engine room side. Construction.