JP3046981B2 - Electric wiring structure for vehicles - Google Patents

Description

The present invention relates to an electric wiring structure for a vehicle.

(Prior Art) In recent years, the assembly of various parts of a vehicle body to a vehicle body using an automatic machine has been increasing. As part of this, for example, it has been demanded that instrument panels located at the front of the passenger compartment and sub-assemblies of the instrument panels (meter nodes, switch nodes, etc.) are also suitable for automatic assembly. I have.

Thus, for example, the instrument panel is divided into two panel units: a skeleton-type instrument panel member directly attached to the vehicle body side cowl panel and an instrument panel core attached to the instrument panel member. In addition, by assembling various sub-assemblies such as a meter node and a switch node to the instrument panel core, it is conceivable to facilitate the assembly (for example, Japanese Patent Application Laid-Open No. 1-190551). reference).

(Problems to be Solved by the Invention) However, even if the instrument panel structure as described above is adopted, there is a problem in how to arrange the electric wiring structure when assembling the electric components therein. Occurs.

That is, recently, due to the remarkable increase in the number of electrical components, naturally, wire harnesses for electrically connecting them have also become large in diameter and large in capacity. Therefore,
The wiring is not easy, and the routing and connection of complicated wiring in a narrow place involves extremely difficult work. I can't respond at all.

Therefore, for example, by curing and solidifying the wire harness itself with a synthetic resin material to form a three-dimensional electric wiring member corresponding to the wiring layout form, the solid three-dimensional electric wiring member, Attempts have also been made to enable automatic assembly by connecting correspondingly to a routing metal plate that is three-dimensionally arranged along the shape of the inner surface of the instrument panel, the connector position, and the like ( JP 63
According to such a configuration, it is possible to cope with the automatic assembly. However, since the processing of the wire harness is complicated and the degree of freedom of the connector fitting position is not enough, all the connector positions are required. If it is not molded with high precision, there is a drawback that the connector fitting portion may be misaligned.

(Means for Solving the Problems) The inventions according to claims 1 to 4 of the present application have been made for the purpose of solving the above problems, and have the following configurations.

(1) Configuration of the invention according to claim 1 The electric wiring structure for vehicles according to the invention according to claim 1 is a vehicle electric wiring structure for electric components for vehicles installed in an instrument panel. The electric wiring member formed of a bundle is divided into two electric wiring members, a first electric wiring member and a second electric wiring member, and the first electric wiring member is divided into a vehicle-body-side instrument panel. A second electrical routing member is attached to the instrument panel core while being attached to the member, and a connector for interconnecting each of the first and second electrical routing members is provided. Things.

(2) Configuration of the invention according to claim 2 The electric wiring structure for a vehicle according to the invention according to claim 2 is based on the structure of the electric wiring structure for a vehicle according to the invention according to claim 1 as a basic component. The electrical components mounted on the instrument panel front surface are routed by the first electrical routing member in the basic component, while the electrical components mounted on the instrument panel upper surface portion by the second electrical routing member. It is characterized in that the products are arranged.

(3) Configuration of the invention according to claim 3 The electric wiring structure for a vehicle according to the invention according to claim 3 uses the electric wiring structure for a vehicle according to the invention according to claim 1 as a basic configuration portion, and the basic configuration portion The first electric routing member and the second
A predetermined control unit is provided at a connection portion between the electric wiring members.

(4) Configuration of the invention according to claim 4 The electric wiring structure for a vehicle according to the invention according to claim 4 uses the electric wiring structure for a vehicle according to the invention according to claim 1 as a basic component, and the basic configuration An interconnecting portion between the first electric wiring member and the second electric wiring member in the portion is provided at a position near a fixed portion of the instrument panel core and the instrument panel member. Things.

(Operation) The inventions described in claims 1 to 4 of the present application are configured as described above, and as a result, have the following operations corresponding to the configurations.

(1) The operation of the invention according to claim 1 In the electric wiring structure for a vehicle according to the invention described in claim 1, first, an electric wiring member composed of a plurality of electric wire bundles is connected to the first electric wiring member and the second electric wiring member. And two electric wiring members. Then, the first electric wiring member is attached to the instrument panel member on the vehicle body side, while the second electric wiring member is attached to the instrument panel core. Therefore, the electric wiring member is easily assembled to each instrument panel unit. Each of the first and second electric wiring members is provided with a connector for mutually connecting them. When the connectors are fitted and connected at the time of final assembly, all the connections are completed with one touch.

(2) The operation of the invention according to claim 2 In the electric wiring structure for a vehicle according to the invention according to claim 2, in addition to the same operation as that of the invention according to claim 1 by its basic constituent parts, the first structure The electrical components mounted on the instrument panel front surface are routed by the electrical routing member, while the electrical components mounted on the instrument panel upper surface portion are routed by the second electrical routing member. Since the connection lines are grouped according to the position of the electrical components and the connection lines are neatly divided, the arrangement and arrangement of the connection connectors are easy, and the connection work at the time of assembly is also easy.

(3) Operation of the invention according to claim 3 In the structure of the electric wiring member for a vehicle according to the invention according to claim 3, in addition to being able to exhibit the operation of the invention according to claim 1 based on its basic configuration, , A first electrical routing member and a second
Since the predetermined control unit is provided at the connection portion between the electric wiring members, the connection of the control unit, which originally requires connection of a large number of wirings, is extremely simple, and the amount of wiring is greatly reduced. .

(4) The operation of the invention according to claim 4 The electric wiring structure for a vehicle according to the invention according to claim 4 has the same function as that of the invention according to claim 1, which is generated based on the basic configuration thereof, and also has the above-mentioned structure. Since the interconnecting portion between the first electric wiring member and the second electric wiring member is provided at a position near the fixed portion between the instrument panel core and the instrument panel member, which has high rigidity, it is fixed. The condition is stable, the alignment at the time of connector fitting becomes easy, and there is no occurrence of misalignment at the time of fitting or poor contact after connection.

(Effects of the Invention) Therefore, according to the vehicle electric wiring structure of each of claims 1 to 4 of the present invention, the productivity of the electric wiring member itself can be improved in accordance with the improvement of the assemblability by dividing the instrument panel. As a result, the assemblability can be improved, and the automatic assembling of the entire instrument panel can be appropriately performed.

In addition, since the integrated wiring can be performed, the number of connectors such as connectors can be reduced at the same time. Further, as a result, the assembling accuracy itself is improved.

(Embodiment) FIGS. 1 to 8 show an electric wiring structure for a vehicle according to a first embodiment of the present invention employing a multiplex transmission system.

First, FIG. 1 is an exploded perspective view of a main part of the entire vehicle instrument panel in the present embodiment as viewed from above a front-side bevel, and FIG. 2 is a diagram showing the structure and the internal structure of the instrument panel. It is the exploded perspective view which looked at the electric wiring form and the electric wiring form from the upper part of the back surface side bevel of the instrument panel.

First, in FIG. 1, reference numeral 1 denotes an instrument panel provided at a front portion of a vehicle interior of the vehicle.
It is a core and constitutes a basic form part of the instrument panel in the present embodiment.

The instrument panel core 1 is integrally formed of, for example, a synthetic resin, and various nodes such as a meter node 2a, a general switch node 2b, an air conditioner switch node 2c, and an audio node 2d are provided on the front side thereof. Are formed, respectively, for attaching electrical component nodes 3a to 3d.

On the other hand, an instrument panel member 4 is arranged on the back side of the instrument panel core 1 as shown in FIG. It is configured to be fixed to a body side cowl panel (not shown).

That is, the instrument panel member 4
Is composed of a frame member having a skeleton structure, and the instrument panel core 1 is provided at an appropriate place.
Flange portions 5a to 5f for connection with the side screw seats 6a to 6f are provided.

Reference numeral 7 denotes a first electric wiring member fixed to the instrument panel member 4 side, and reference numeral 20 denotes the same.
Is a second electric wiring member fixed inside the instrument panel core 1.

The first electric wiring member 7 is provided with vehicle connection connectors 9A and 9B each having a cylindrical shape and coupled to the cowl-side main connector at both left and right ends as shown in the figure. The vehicle connection connectors 9A and 9B have steps 81A and 81B on the first and fifth fixing members 8a and 8j, respectively.
The projections 82A and 82 on the instrument panel member 4 side
By pressing with B, it is stably fixed to the cowl side. The first electric wiring member includes, for example, a flat wire harness (wire bundle) 7a as a wiring member main body, and includes first to fifth fixing members (for the instrument panel member 4). The mounting portions 7b to 7f are thickly coated in a plate shape with, for example, a thermosetting resin, and are provided with screw insertion holes 8a to 8j for fixing screws.

An electronic control unit module (ECU module) connection first connector 10 is provided at the upper right end of the third fixing member (attaching portion) 7d located substantially at the center. Connector 1 for air conditioner switch node from the upper side to the lower side at the bottom
1, an audio node connector 12 and a center console node connector 13 are provided.
Further, a meter node connecting connector 14 is provided above the fourth fixing member (mounting portion) 7e, and a column switch node connecting connector 15 is provided below the fourth fixing member (mounting portion) 7e.

For example, a fixing member and a wiring branching structure as shown in FIGS. 6 to 8 are arbitrarily adopted for the connector 14 for the meter node connection. First, the example shown in FIG. 6 is an example in which a flat cable 16 is used for the flat wire harness 7a and a fixing member (attachment) 7e is formed by covering a wiring branch portion with a thermosetting resin. The FPC (flexible printed circuit board) 17 is used for the flat-type wire harness 7a, and the wiring branch part is covered with a thermosetting resin in the same manner as in FIG. 6 to form the fixing member 7e. It is. Further, in the case of FIG. 8, as in the case of FIG. 7, an FPC is used as the flat wire harness 7a, while the fixing member 7e 'is constituted by a PCB (printed circuit board).

Next, a connector 16 for connecting a fuel lid opener switch node and a connector 17 for connecting a trunk lid opener switch node are provided below the fifth fixing member (mounting portion) 7f of the first electric wiring member 7 in parallel. And the vehicle connection connector 9B on the left end side is integrated.

On the other hand, on the instrument panel member 4 side, fixing fitting openings 10a, 11 corresponding to the respective node corresponding connectors 10 to 17 on the first electric wiring member 7 side.
a, 12a, 13a, 14a, 15a, 16a, 17a are provided respectively. The first electric wiring member 7 is securely attached to and connected to the instrument panel member 4 by fitting the two.

By the way, in FIG. 2, reference numeral 30 denotes CPU, RAM, RO
The above electronic control unit module (ECU module) with M etc. and multiplex communication control
Shows the electronic control unit module
In the case of the present embodiment, 30 is the instrument panel
It is designed to be mounted on the back side of the module mounting plate 32 of the member 4. The electronic control unit module 30 has the first
Has a receiving-side first connector 10a into which the first connector 10 for connecting the electronic control unit module on the electric wiring member 7 side, and has a receiving-side second connection connector 31 on the upper front side. Then, the first connection connector 31 is fixed in a state of being fitted into the connector fitting opening 31a of the module mounting plate 32.

On the other hand, the above-mentioned second electric wiring member 20 has a flat wire harness 20 like the first electric wiring member 7.
a is the center, the connector 21A for solar radiation sensor connection for auto light control on the left end,
In the right end, a connector for glove box lamp
21B and glove box lamp switch connector 2
1c is provided in a vertically branched manner. Further, a fixing member 22 made of a thermosetting resin, a connector 23 for connecting a solar radiation sensor for an automatic air conditioner, and a second connector 24 for connecting an electronic control unit module are provided in the middle thereof.

The connector 23 for connecting the solar radiation sensor for the auto air conditioner and the connector 24 for connecting the electronic control unit module are interconnected and solidified by a thermosetting resin member 25 to form a fixed portion.

The solar light sensor connector 21A for auto light control has a lug-like flange on the base end side, and screw insertion holes formed on the left and right sides of the flange.
Instrument panel core 1 via 26a, 26b
The screw bases 36a, 36b on the back side are fastened and fixed via screw screws 37a, 37b. In this fixed state, the connector 21A is connected to the instrument panel core 1.
And is adapted to correspond to a solar radiation sensor (not shown). Also, the fixing member
A flange portion for fastening and fixing is also formed on the upper side of 22 so that it is fixed to the screw base 35 on the instrument panel core 1 side with the screw screw 38a via the screw hole 22a of the flange portion. Has become. Further, the connector 23 for the solar radiation sensor for the auto air conditioner is connected to the instrument panel core through the screw holes 23a and 23b with screw screws (not shown) in exactly the same manner as the configuration of the connector 21A for the solar light sensor for the auto light. In the fixed state, the connector 23 portion is fitted and fixed in the connector fitting opening 34 in the fixed state.

By the way, the connectors 21A and 23 for connecting the solar radiation sensors for the auto light and the auto air conditioner are not limited to the above screw-fixed fixing structure,
For example, as shown in FIGS. 4 and 5, cotter pins 26a '(23a'), 26 having engagement portions at the left and right flange portions.
b '(23b'), and the cotter pins 26a '(23a'), 2
By inserting the 6b '(23b') into the cotter pin insertion holes 36a '(33a') and 36b '(33b') on the instrument panel core 1, it may be possible to lock with one touch. By doing so, workability at the time of assembly is further improved. In FIG. 5, reference numeral 50 indicates a corresponding solar radiation sensor, and projections for engagement are provided on both sides of the solar radiation sensor 50 main body, and the solar radiation sensor 50 main body is connected to a nozzle of a defroster. By press-fitting into the solar radiation sensor fitting hole 51 formed in the grill 1a, the two can be fitted and connected with one touch. As described above, the upper surface side of the instrument panel core 1 is covered with the nozzle grill 1a of the defroster, and as a result, the cotter pins 26a '(23a') and 26b 'of the connector 21A (23).
(23b ') etc. are not visible from the outside. Therefore, the above configuration is easily adopted.

Further, the meter node connecting connector 14 on the first electric wiring member 7 side (the same applies to the column switch node connecting connector 15) is, for example, specifically an alignment connector as shown in FIG. Adopted.

That is, in FIG. 3, reference numeral 49 denotes a connector supporting bracket supported on the first electric wiring member 7 side, and a connector main body 43 is provided at a central portion on the front side of the bracket 49.
Claws 44 to 47 for detachably holding at four places up, down, left and right
(However, 46 and 47 are not visible) are provided, while cotter pins 41 and 42 for one-touch engagement are provided on the left and right sides thereof.
Is provided. Also, at the tip of the connector body 43 for connecting a meter (column switch) held by the holding claws 44 to 47, alignment pins 46 and 47 for connection are protruded.

Therefore, as long as the tip of the connector main body 43 is accurately inserted into the corresponding fitting opening 14 (15) on the instrument panel member 4 side using the alignment pins 46, 47, the cotter pins 41, 42 are provided. Can be relatively easily inserted into the pin insertion holes 41a, 42a, and one-touch assembly is possible.

Therefore, in the configuration of the instrument panel, when the instrument panel core 1 is attached to the instrument panel member 4 fixed to the body side cowl portion, the first electrical distribution is performed at the time of attachment. The cable member 7 and the second electric wiring member 20 are connected to each other via the electronic control unit module 30, so that each node unit is also accurately connected to the power supply and the control circuit. become.

As described above, according to the vehicle electric wiring structure of the first embodiment, the assemblability is improved by dividing the instrument panel member 4 of the vehicle body side instrument panel and the instrument panel core 7 of the vehicle interior side. In addition, the electric wiring members are also divided into first and second electric wiring members 7, 20 which are attached correspondingly. As a result, the productivity and the assemblability of the electric wiring member itself can be improved at the same time, and the entire instrument panel can appropriately respond to automatic assembly.

At the same time, the number of connection portions (connector portions) and the amount of wiring can be reduced. Further, the corresponding positions of the connectors are also accurate, and the assembling accuracy is improved.

Next, FIG. 9 shows an electric wiring structure for a vehicle according to a second embodiment of the present invention.

The present embodiment is characterized in that the electronic control unit module 30 described above is provided inside the first electric wiring member 7 on the instrument panel member 4 side. A third fixing member (attaching portion) 7d of the wiring member 7 is provided with vertically extending flange portions 64 and 65 at the left end thereof, and a projecting connector 63 is provided at an intermediate portion thereof for electronic control. It is connected to the concave connector 31 'on the unit module 30 side. Therefore, according to this configuration, it is optimal especially when there is an electronic control system product on the innermost side in the instrument panel.

In the case of this embodiment, the first electric wiring member 7 and the second electric wiring member 20 are different from those of the first embodiment in that the first electric wiring member 7 and the second electric wiring member 20 are directly connected to each other. The connector 10 'and the second wiring member connecting connector 24' are connected by mutual connection via the fitting opening 10a '.

Each of the electric wiring structures of the above embodiments employs a multiplex transmission system as a signal transmission system. The present invention is particularly advantageous in simplifying wiring in such a multiplex transmission system. Although beneficial effects can be obtained, it goes without saying that the present invention is not necessarily limited to only those employing the multiplex transmission system as described above.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a front side of a vehicle instrument panel showing an electric wiring structure for a vehicle according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view of the back side, and FIG. FIG. 4 is an enlarged exploded perspective view of a connector unit for connecting a meter node switch and the like in the same structure, FIG. 4 is a perspective view showing a configuration example of a connector unit for solar radiation sensor in the same structure, and FIG.
FIG. 6 is a cross-sectional view showing the structure of a solar radiation sensor mounting portion (defroster grill portion) employing the connector structure of FIG. 4, and FIGS. 6 to 8 show specific examples of the meter node connection connector portion in the structure of the above embodiment. FIG. 9 is an exploded perspective view of the back side of an instrument panel showing an electric wiring structure for a vehicle according to a second embodiment of the present invention. 1 Instrument panel core 2a Meter node 2b General switch node 2c Air conditioner switch node 2d Audio node 4 Instrument panel member 7 First electrical wiring member 7a ... flat wire harness 7b ... first fixing member 7c ... second fixing member 7d ... third fixing member 7e ... fourth fixing member 7f ... fifth fixing member 9A, 9B ... Connector for vehicle connection 10 ... 1st for electronic control unit module connection
Connector 10 ': Connector for connection between first wiring members 11: Connector for air conditioner switch node 12: Connector for audio node connection 13: Connector for center console node connection 14: Connector for meter node connection 15 …… Connector for column switch node connection 20 …… Second electric wiring member 21A …… Connector for solar light sensor connection for auto light control 22 …… Fixing member 23 …… Connector for solar light sensor connection for auto air conditioner 24 …… Electronic Second for control unit module connection
Connector 24 ': Connector for connection between second wiring members

Continued on the front page (72) Inventor Seiji Hirano 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Corporation (72) Inventor Masaaki Shimizu 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Corporation (72) Inventor Osamu Dohei 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Prefecture Inside Mazda Co., Ltd. (56) References JP-A-2-24238 (JP, A) JP-A-1-212636 (JP, A JP-A-1-212635 (JP, A) JP-A-2-24238 (JP, A) JP-A-64-67809 (JP, A) JP-A-62-116334 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) B60K 37/00 B60R 16/02

Claims (4)

(57) [Claims] An electric wiring structure for electric components for a vehicle installed in an instrument panel, wherein an electric wiring member composed of a plurality of electric wire bundles is connected to a first electric wiring member and a second electric wiring member. The electric wiring member is divided into two electric wiring members, and the first electric wiring member is mounted on the vehicle-side instrument panel member, and the second electric wiring member is mounted on the instrument panel core. And a connector for interconnecting the first and second electric wiring members with each other. 2. An electric wiring member mounted on a front surface of an instrument panel, and a second electric wiring member mounted on an upper surface of the instrument panel. 2. The vehicle electrical wiring structure according to claim 1, wherein the wiring is performed. 3. The vehicle electric vehicle according to claim 1, wherein a predetermined control unit is provided at a connection portion between the first electric wiring member and the second electric wiring member. Routing structure. 4. An interconnecting portion between the first electric wiring member and the second electric wiring member is provided at a position near a fixed portion between the instrument panel core and the instrument panel member. The electric wiring structure for a vehicle according to claim 1, wherein: