JP2001122056A - Wire harness device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire harness device for a vehicle reducible in cost by improving assembling property to a vehicle. SOLUTION: In this wire harness device for a vehicle for wiring circuit groups mounted in the vehicle 1, wire harness 11, 12 for basic circuit groups are wired at the basic circuit groups for executing the basis function of the vehicle 1, and wire harness 13 for an added circuit group is wired at the added circuit group for executing the added function of the vehicle 1 out of the circuit groups. A rear packaging tray 20 is disposed at the rear of the vehicle 1 and mounted with a plurality of units 21-26 respectively supplied with power from the wire harness for the added circuit group to execute different added functions.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wiring harness device used for wiring a vehicle.

[0002]

2. Description of the Related Art Units scattered behind a vehicle are:
In the conventional wire harness, a number of branch lines are provided from a trunk portion of a floor portion wire harness routed on both sides of a vehicle.

[0003]

However, the above countermeasures have the following problems. 1. Design man-hours for securing a wire harness route on a vehicle increase. This is because the trunk portion of the wire harness becomes thicker, which affects the body and interior parts of the vehicle, and further, the branch portion of the wire harness requires a seat for fixing the body. 2. The wire harness shape becomes complicated, and the manufacturing efficiency decreases. 3. The cost increases due to an increase in the number of exterior parts attached to many branch lines. 4. Due to the enlargement (weight increase) of the floor wire harness trunk line, the work in the difficult position in the cabin is further deteriorated. Units that greatly affect the enlargement of the wire harness include navigation devices and digital tuners that require a noise-resistant circuit, audio amplifiers and woofers that require a large current circuit, and the like. 5. By fixing many branch lines, the man-hour for assembling the vehicle increases.

[0004] In view of the above-mentioned problems, it is an object of the present invention to provide a vehicle wire harness device capable of reducing costs by improving assemblability to a vehicle.

[0005]

SUMMARY OF THE INVENTION In view of the above object, a vehicle wire harness device according to the first aspect of the present invention is a vehicle wire harness device for wiring to a circuit group mounted on a vehicle 1. The basic circuit group wiring harnesses 11 and 12 for wiring to the basic circuit group that performs the basic function of the vehicle 1 in the circuit group, and execute the additional function of the vehicle 1 in the circuit group. An additional circuit group wire harness 13 for wiring to an additional circuit group
And a rear packaging tray 20 mounted on the rear of the vehicle 1 and mounted with a plurality of units 21 to 26 each of which is supplied with power from the additional circuit group wire harness and performs a different additional function. I do.

According to the first aspect of the present invention, there is provided a wire harness device for a vehicle for wiring to a circuit group mounted on the vehicle 1, wherein the wire harnesses 11 and 12 for the basic circuit group are provided.
Is wired to a basic circuit group that executes a basic function of the vehicle 1 in the circuit group. The additional circuit group wire harness 13
In the circuit group, wiring is performed to an additional circuit group that performs an additional function of the vehicle 1. The rear packaging tray 20 holds the vehicle 1
And a plurality of units 21 to 26 each of which is supplied with power from the additional circuit group wire harness and executes a different additional function.

According to a second aspect of the present invention, in the vehicle wire harness device of the first aspect, the basic circuit group wire harnesses 11 and 12 are routed on both sides of the floor of the vehicle 1. The additional circuit group wire harness 13 is routed at the center of the floor of the vehicle 1.

According to the second aspect of the present invention, the basic circuit group wire harnesses 11 and 12 are routed on both sides of the floor of the vehicle 1, and the additional circuit group wire harness 13 is
It is routed at the center of the floor of the vehicle 1.

According to a third aspect of the present invention, in the wire harness device for a vehicle according to the first or second aspect, a part of the additional circuit group wire harness 13 is provided on the rear packaging tray 20. A harness storage groove 20A for storing and a locking piece 20a for fixing the wire harness for the additional circuit group are formed across the harness storage groove 20A.

According to the third aspect of the present invention, the rear packaging tray 20 has a harness storage groove 20A for storing a part of the additional circuit group wire harness 13;
A locking piece 20a for fixing the additional circuit group wire harness is formed across the harness storage groove 20A.

According to a fourth aspect of the present invention, in the vehicle wire harness device according to any one of the first to third aspects, the unit is further housed in the rear packaging tray 20. Storage unit 20B is formed, and the unit storage unit 2
0B is provided with a connection groove 20C formed deeper from a part of the unit housing portion 20B and the connection groove 2C.
A connector 29 in which an end of the additional circuit group wire harness 13 is connected to a shelf 20C1 formed between
Is attached.

According to the fourth aspect of the invention, the rear packaging tray 20 is further formed with a unit storage portion 20B for storing a unit, and is formed further deeper from a part of the unit storage portion 20B. A connector 29 in which an end of the additional circuit group wire harness 13 is connected to a shelf 20C1 formed between the unit storage portion 20B and the connection groove 20C.
Is attached.

According to a fifth aspect of the present invention, in the vehicle wire harness device according to any one of the first to fourth aspects of the present invention, the unit includes the unit storage portion 2.
0B, and both sides thereof are held by locking plates 27 fixed to the rear packaging tray 20 by fixing means 28.

According to the fifth aspect of the present invention, the unit is housed in the unit housing portion 20B, and both sides thereof are
It is held by a locking plate 27 fixed to the rear packaging tray 20 by fixing means 28.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle wire harness device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram showing an embodiment of a vehicle wire harness device according to the present invention. In FIG. 1, a battery 2 disposed on a front body of a vehicle 1
From the wiring harness trunk line 3, the wiring is wired to a circuit group scattered in each part of the vehicle 1. The wiring from the wire harness trunk 3 is divided into other trunks via the joints 4, 5, 6, and 7, further divided into branch lines from each trunk, and located at the front, rear, left and right parts of the vehicle 1. To the circuit group.

Therefore, in the present invention, the wire harness trunk line of the floor portion of the vehicle 1 is replaced with a floor left wire harness basic circuit portion 11 and a floor left wire harness for a basic circuit group necessary for the specifications or grades of all vehicle types. The right wiring harness basic circuit section 12 and the floor center wiring harness additional circuit section 13 serving as a wiring harness for an additional circuit group having a different circuit configuration depending on the specification or grade of the vehicle type are separately routed. The basic circuit group includes, for example, a lighting system such as a tail lamp and a stop lamp, and a body system such as a door lock and a power window. The additional circuit group includes, for example, an AV (audio / video) device and an air purifier or a sunshade. Includes comfort components circuit.

That is, the wire harness passing through the joint 5 disposed on the left side of the floor is routed on the left side of the vehicle 1 as the floor left wire harness basic circuit section 11 and disposed on the right side of the floor. The wire harness passing through the joint 6 is routed to the floor right of the vehicle 1 as a floor right wire harness basic circuit section 12, and the wire harness passing through the joint 7 disposed in the center of the floor is located at the center of the floor. The wiring harness addition circuit section 13 is arranged at the center of the floor of the vehicle 1.

Units (corresponding to an additional circuit group) scattered in the rear part of the vehicle 1 are integrated into a rear packaging tray 20, and a wiring harness additional circuit section 13 at the center of the floor is arranged on the rear packaging tray 20. And supply power.

FIG. 2 is a perspective view showing an example of the configuration of the rear packaging tray 20 in the vehicle wiring harness device of FIG. The rear packaging tray 20 is made of, for example, a synthetic resin, and is arranged behind the vehicle 1. On the rear packaging tray 20, various units as an additional circuit group, for example, body electronics (keyless receiver, ABS (antilock brake system), lamp disconnection detection electronics, etc.)
21 and 22, an air conditioning system unit (air conditioner controller, heater controller, air cleaner, etc.) 23, a lamp system unit (stop lamp, etc.) 24, and an AV system unit (amplifier, tuner, navigation system, etc.) 25, 26 The wiring harness addition circuit unit 13 at the center of the floor is mounted on each unit and connected to the unit by branching.

FIG. 3 is a partial cross-sectional view taken along the line AA in FIG. 2, and shows an example of a fixing structure of a part of the wiring harness addition circuit section 13 at the center of the floor to the rear packaging tray 20. In the rear packaging tray 20, a harness storage groove 20A is formed between each unit to be mounted, and one end is formed in the rear packaging tray 20A.
A plurality of locking pieces 20a extending integrally from each other and having a claw portion 20a1 at the other end are formed at appropriate places so as to cross the harness storage groove 20A. In the harness storage groove 20A, a locking groove 20A1 is formed at a position corresponding to the claw portion 20a1 of the locking piece 20a.

Therefore, the tape-wrapped floor center wire harness addition circuit section 13 is connected to each of the units 21 to 26.
The tab 20a1 of the locking piece 20a is housed in the harness storage groove 20A while branching in accordance with the position of the locking groove 20A.
It is fixed by locking to A1.

FIG. 4 is a partial sectional view taken along the line BB in FIG. 2 and shows an example of a structure for fixing each unit to the rear packaging tray 20. Rear packaging tray 2
In the unit 0, a unit storage portion 20B is formed in accordance with the dimensions of the units 21 to 26 to be mounted.

For example, the body electronics 21 is housed in the unit housing portion 20B, and both sides of the body electronics 21 are held down by the L-shaped locking plate 27 fixed to the rear packaging tray 20 with screws 28 as fixing means. Is retained.

FIG. 5 is a partial cross-sectional view taken along the line CC in FIG. 2, and shows an example of a connection structure between each unit and the wiring harness additional circuit unit 13 at the center of the floor. The rear packaging tray 20 is provided with a connection groove 20C formed further deeper from a part of the unit storage section 20B, and a shelf 20C1 formed between the unit storage section 20B and the connection groove 20C has a floor. Central wire harness additional circuit 1
A connector 29 to which the third end is connected is attached.
The mounting position of the connector 29 is a position adapted to the connection with the unit 25 stored in the unit storage section 20B.

Then, the unit housed and fixed in the unit housing section 20B, for example, the AV system unit 25, is connected to the wiring harness addition circuit section 13 at the center of the floor via the connector 29 and supplied with power.

As described above, the wiring harness on the floor of the vehicle is divided into the wiring harnesses 11 and 12 for the basic circuit group necessary for the specifications or grades of all types of vehicles, and the additional circuits having different circuit configurations depending on the specifications or grades of the types of vehicles. The wiring harnesses 13 are arranged separately from the group wiring harnesses 13, and the units (corresponding to the additional circuit group) scattered in the rear part of the vehicle are integrated into the rear packaging tray 20, and the wiring harnesses at the center of the floor are transferred to the rear packaging tray 20. Additional circuit unit 1
3 is wired to supply power.

Therefore, by changing only the additional circuit group wire harness 13 and the rear packaging tray 20 having different specifications or grades, it is possible to cope with all types of vehicles. If the grade is the same (or the optional features are the same) and the model is different,
If only the shape of the rear packaging tray 20 is changed, it is possible to cope with it.

Further, by separating the additional circuit group from the conventional floor wiring harness, the number of branch lines is reduced, and the number of design steps for securing the wiring harness path is reduced. Also,
It is possible to reduce the number of exterior parts of the branch wires, prevent a large number of products depending on specifications or grades, enable small-scale mass production of wire harnesses, reduce manufacturing costs, and improve cost competitiveness.

Further, by integrating the wire harness composed of the additional circuit group and the unit corresponding to the additional circuit group into the rear package tray 20, it is possible to improve the assembling property to the vehicle. In addition, assembling of the wire harness due to a difficult posture in the vehicle interior is reduced. In addition, the assembling time of the branch portion is reduced.

As described above, the embodiment of the present invention has been described. However, the present invention is not limited to this, and various modifications and applications are possible.

For example, in the above-described embodiment, the locking piece 20a is formed integrally with the rear packaging tray 20, but the locking piece 20a is formed as a separate member.
It may be attached to 0.

Although the L-shaped locking plate 27 is used, other shapes may be used. Further, the locking plate 27 is fixed to the rear packaging tray 20 with the screw 28, but may be fixed by other fixing means.

[0034]

According to the first aspect of the present invention, all types of vehicles can be handled by changing only the wire harness for the additional circuit group and the rear packaging tray having different specifications or grades. In addition, when the grade is the same (or the optional function is the same) and the vehicle type is different, it is possible to cope by changing only the shape of the rear packaging tray.

According to the second aspect of the present invention, by separating the wire harness for the additional circuit group from the wire harness for the basic circuit group, the number of branches is reduced, and the number of design steps for securing the wire harness path is reduced. Be reduced. In addition, it is possible to reduce the number of exterior parts of the branch wires, prevent a large number of products depending on specifications or grades, enable small-scale mass production of wire harnesses, reduce manufacturing costs, and improve cost competitiveness. In addition, assembling of the wire harness due to a difficult posture in the vehicle interior is reduced.

According to the third aspect of the present invention, since a part of the additional circuit group wire harness is integrated with the unit corresponding to the additional circuit group in the rear package tray 20, the assemblability to the vehicle is improved. Can be improved. In addition, the time required for assembling the branch lines can be reduced.

According to the fourth aspect of the present invention, the connection between the unit and the additional circuit group wire harness becomes easy.

According to the fifth aspect of the present invention, the unit mounted on the rear packaging tray can be firmly fixed so as to withstand vibration of the vehicle and the like.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a vehicle wire harness device according to the present invention.

FIG. 2 is a perspective view showing a configuration example of a rear packaging tray in the vehicle wiring harness device of FIG. 1;

FIG. 3 is a partial cross-sectional view taken along the line AA in FIG. 2, showing an example of a fixing structure of a part of a wiring harness addition circuit portion at the center of a floor to a rear packaging tray.

FIG. 4 is a partial cross-sectional view taken along line BB in FIG. 2, showing an example of a structure for fixing each unit to a rear packaging tray.

5 is a partial cross-sectional view taken along the line CC in FIG. 2, showing an example of a connection structure between each unit and a wiring harness addition circuit unit 13 at the center of the floor;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Vehicle 11 Floor left wire harness basic circuit part (wire harness for basic circuit group) 12 Floor right wire harness basic circuit part (wire harness for basic circuit group) 13 Floor central wire harness additional circuit part (for additional circuit group) 20 wire harness) 20 rear packaging tray 20A harness storage groove 20B unit storage section 20C connection groove 20C1 shelf 20a locking piece 27 locking plate 28 screw (fixing means) 29 connector

Claims (5)

[Claims] 1. A vehicle wiring harness device for wiring to a circuit group mounted on a vehicle, wherein the basic circuit is wired to a basic circuit group that executes a basic function of the vehicle among the circuit groups. A wire harness for a group; a wire harness for an additional circuit group for wiring to an additional circuit group that performs an additional function of the vehicle among the circuit groups; and a wire harness disposed behind the vehicle, each of which is the additional circuit group. A wiring harness device for a vehicle, comprising: a rear packaging tray on which a plurality of units that are supplied with power from the vehicle wiring harness and execute different additional functions are mounted. 2. The basic circuit group wire harness is routed on both sides of a floor of the vehicle, and the additional circuit group wire harness is routed in a center of the floor of the vehicle. The vehicle wire harness device according to claim 1. 3. A harness storage groove for storing a part of the additional circuit group wire harness, and the additional circuit group wire harness is fixed across the harness storage groove in the rear packaging tray. The wire harness device for a vehicle according to claim 1, wherein a locking piece is formed. 4. The rear packaging tray further includes a unit storage section for storing the unit, and a connection groove formed deeper from a part of the unit storage section. 4. A connector to which an end of the additional circuit group wire harness is connected is attached to a shelf formed between the unit storage portion and the connection groove.
The vehicle wire harness device according to any one of claims 1 to 4. 5. The unit according to claim 1, wherein the unit is accommodated in the unit accommodating portion, and both sides of the unit are held by locking plates fixed to the rear packaging tray by fixing means. Or the wire harness device for a vehicle according to any one of the above items 4.