JP2001138833A - Circuit body for car body panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To freely perform the setting of arranging a circuit conductor without forming a complicated shape for providing the circuit conductor in a car body panel, eliminate the process of mounting the circuit conductor on the car body panel in a car body fitting-out line each time, and reduce the manufacturing cost of the car body panel itself. SOLUTION: The circuit conductor 22 is arranged in the car body panel 21 having insulating property, and the circuit conductor 22 is covered with a sheet member 24 having insulating property extending over the full length through an adhesive 23, thereby fixing the circuit conductor 22 to the car body panel 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit body for a vehicle body panel for arranging a circuit body composed of one or more circuit conductors on a vehicle body panel.

[0002]

2. Description of the Related Art In recent automobiles, there are electric door mirrors, power window mechanisms, electric door lock mechanisms, door speakers, etc. mounted on door devices, and vehicle safety represented by navigation system devices, airbag systems, and the like. Electrical components such as operation systems are heavily used, and their demands tend to increase. For example, as shown in FIG. 4, a wire harness 1 electrically connected to electrical components such as the above-mentioned electric door mirror employed in a door apparatus of an automobile is formed of a door frame main body 2 formed by sheet metal forming and a resin body serving as an interior member. It was wired on an inner panel 4 formed of a resin body provided between the door trim 3 and the door trim 3. In this case, the wire harness 1 is formed by winding and binding a large number of electric wires by tape, and is fixed to the door trim 3 by using an appropriate resin clamp or the like. A door mirror connector housing 5, a power window connector housing 6, a door lock connector housing 7, and a speaker connector housing 8 are attached to the wire harness 1 at positions corresponding to predetermined electrical components.
When the connector is mounted on the door frame body 2, connector terminals on the side of the door mirror, the power window mechanism, etc. are appropriately fitted to the housings 5, 6, 7, 8 for electrical connection.

However, since the wire harness 1 is formed by bundling a large number of electric wires, it takes up a space, the internal space of the door device is narrowed accordingly, and a power window mechanism, a door lock mechanism, and the like installed inside the door device. In view of the fact that the installation location is likely to be restricted, it is necessary to take this into consideration and attach a large number of electric wires to the inner panel 4 with the wire harness 9 in a mode in which the wires are arranged in a flat shape as shown in FIG. Had been Reference numeral 10 denotes a front end surface 1 of the door device.
1 is a front wire harness exposed to the outside,
Connected to a battery installed in an engine room (not shown).

[0004] However, in the above two structures, when the wire harnesses 1 and 9 are fixed to the inner panel 4, they have to be attached using a clamp device. In addition, since the work of fixing the harness is performed at the site of the vehicle assembly line, the assembly efficiency may be reduced accordingly.

Therefore, in order to solve the above-mentioned disadvantages, Japanese Unexamined Patent Application Publication No. 9-19035 (hereinafter referred to as "first proposed device") shown in FIG.
136541 (hereinafter referred to as "second proposed device")
Have been proposed respectively. That is, in the first proposed device, a concave guide lane 13 is formed on the outer surface of the vehicle body of the door interior panel 12 made of resin, and a projection 14 for retaining is provided at an opening edge thereof. The wire harness 15 is housed in the guide lane 13, and the harness 15 is prevented from coming out of the guide lane 13 by the projection 14, and is manufactured in the form of a sub-assembly in which the door interior panel 12 and the wire harness 15 are integrated in advance. . In the vehicle assembly line process, the work of fixing the wire harness 15 is omitted in the vehicle assembly line process by attaching the sub-assembled door interior panel to the door body as it is.

In the second proposed apparatus shown in FIG. 7, a space between a hard resin core layer 17 and a skin material 18 of a door panel 16 is filled with a foamed resin layer 19 which is a soft resin material. A flat wire harness 20 is embedded in the resin layer 19 in advance, whereby the wire harness 20 is integrated with the panel 16 to be sub-assembled.

[0007]

However, in the first proposed device, the door interior panel 12 which is a vehicle body panel is used.
Since the guide lane 13 for holding the wire harness 15 as the circuit conductor must be formed on the side, the vehicle body panel has a complicated shape, and the production cost of the molding die and the production of the door device may be significantly increased. . In addition, the setting of the circuit conductor is restricted depending on the direction in which the mold is removed during molding. As a result, it is impossible to take a circuit as desired, and the circuit conductor 15 with respect to the vehicle body panel body 1 is not provided.
There is a possibility that the degree of freedom in the routing of the vehicle may be impaired. Furthermore, in order to prevent the harness 15 from going outside from the guide lane 13, a cover member must be separately provided. In addition, according to the second proposed device, since the wire harness 20 is integrated by using a molding die, the manufacturing device is enlarged, and the electric circuit is branched from a proper position of the wire harness 20 by the resin layer 19. There is a disadvantage in that the hole must be formed, which makes it more difficult.

The present invention has been devised in view of the above-mentioned circumstances, and a circuit body is integrally mounted on a vehicle body panel without using a molding die. However, the circuit body can be freely routed following this, and the circuit body can be routed integrally with the body panel to be subassembled to reduce the manufacturing cost. The purpose is to get the body.

[0009]

According to a first aspect of the present invention, there is provided a circuit body for a vehicle body panel in which a circuit conductor is routed on a body panel having an insulating property.
The circuit conductor is fixed to the vehicle body panel by covering an insulating sheet member along the entire length of the circuit conductor with an adhesive.

According to a second aspect of the present invention, there is provided the circuit body for a vehicle body panel according to the first aspect, wherein the circuit conductor is not covered, and a window is formed in the sheet member to expose the circuit conductor. The circuit conductor exposed from the window is electrically connected to a connector device connected to an electric load.

According to a third aspect of the present invention, there is provided the circuit body for a vehicle body panel according to the second aspect, wherein the adhesive is applied to the sheet member side.

According to a fourth aspect of the present invention, there is provided the circuit body for a vehicle body panel according to the third aspect, wherein an upper layer circuit conductor is further layered and disposed on the sheet member, and the sheet is disposed on the upper layer circuit conductor. An upper layer sheet member formed in the same manner as the member is laminated and covered, and the upper layer circuit conductors are sequentially laminated and fixed.

According to the circuit body for a vehicle body panel according to the first aspect of the present invention, a circuit conductor is routed on a body panel having an insulating property, and a sheet member having an insulating property is formed along the entire length of the circuit conductor. Since the circuit conductor was fixed to the vehicle body panel by coating with an adhesive, the circuit conductor was freely routed on the vehicle body panel without being affected by the shape of the vehicle body panel, and the circuit was previously connected via the adhesive. The conductor is integrated into the body panel.

According to the circuit body for a vehicle body panel according to the second aspect of the present invention, the circuit conductor is not covered, and a window is formed in the sheet member to expose the circuit conductor, and the window is exposed from the window. Since the connector device connected to the electric load is electrically connected to the circuit conductor, the circuit is branched from the predetermined window through the connector device.

According to the third aspect of the present invention, since the adhesive is applied to the sheet member, the adhesive is applied to the sheet member, so that the circuit conductor is placed on the vehicle body panel and covered with the sheet member. .

According to the circuit body for a vehicle body panel according to the fourth aspect of the present invention, an upper layer circuit conductor is further layered and arranged on the sheet member, and is formed on the upper layer circuit conductor in the same manner as the sheet member. The upper layer sheet member thus formed is laminated and covered, and the upper layer circuit conductors are sequentially laminated and fixed.

[0017]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. 1 is an exploded perspective view of a circuit body for a vehicle body panel, and FIG. 2 is an enlarged cross-sectional view taken along line AA of FIG. Manufacturing of a circuit body for a vehicle body panel will be described. Reference numeral 21 denotes a door trim which is a vehicle body panel formed of a synthetic resin body of an automobile door device. The door trim 21 is placed substantially horizontally, and two bus bars 22 (hereinafter, referred to as “lower bus bars”) as circuit conductors are arranged in parallel on the back side of the trim 21, that is, on the side facing the door panel outer plate side. Next, on the back surface formed of an insulating material,
For example, a sheet 24 coated with an appropriate adhesive 23 such as hot melt (hereinafter, referred to as a “lower sheet”) is attached from above the lower bus bar 22 along the entire length thereof, and the two bars 22 are fixed to the trim 21. The lower sheet 24 has a plurality of rectangular windows 25 formed therein.
2 are exposed. Next, the lower sheet 24
In a slight depression formed between the lower busbars 22 above the other busbars 26 (hereinafter referred to as “upper busbars”).
Is provided. In this state, a sheet 27 (hereinafter, referred to as an “upper layer sheet”) to which an adhesive has been applied is laminated and attached to the back surface in the same manner as the lower layer sheet 24 described above.
In this way, the bus bars 22 and 26 are stacked, and a circuit body 28 as shown in FIG. 2 can be obtained. At this time,
The width of the window 29 of the upper sheet 27 in the longitudinal direction is shorter than the width of the window 25 of the lower sheet 24. Therefore, the lower bus bar 22 existing below the lower sheet 24 is prevented from being exposed by the upper sheet 27 by an amount corresponding thereto. Therefore, in this case, only the upper bus bar 26 is exposed to the outside through the window 29 (FIG. 2).

Next, the door trim 21 in the vicinity of each window 29 is provided with a locking hole 31 for attaching a connector terminal 30 for electrically connecting to the upper bus bar 26 and diverting electricity to the outside. On the other hand, a locking claw 32 that fits into the locking hole 31 protrudes from the connector terminal 30. Therefore, by attaching the connector terminal 30 to the predetermined window 29 according to the vehicle type, an assembly in which the circuit body 8 is integrally attached to the door trim can be obtained.

When the circuit body 8 for the door trim 1 as an assembly constructed as described above is attached to a door frame main body in a door assembly and outfitting line of an automobile, a door speaker previously installed on a door inner panel,
It is assembled by fitting a connector terminal of an electrical component such as a door window regulator mechanism with a connector terminal 30 attached to the circuit body 28 and electrically connecting them.

Since the present embodiment has the above-described configuration, it is not necessary to provide the guide lane 13 for accommodating the circuit conductor as in the first proposed device, and the structure of the door trim 21 can be simplified. It can be something. Also, unlike the above-mentioned second proposed apparatus, in which a circuit conductor is integrally embedded in a trim using a molding die, the bus bars 22, 26 are attached to the door trim 1 with the sheets 24, 27 via an adhesive 23. By simply pasting and attaching, a circuit integrated with the door trim can be easily obtained. Therefore, the structure of the door trim can be simplified, and the manufacturing cost can be significantly reduced. In addition, in the assembly line of the door device, assembly of circuit conductors such as a wire harness can be omitted, and as a result, work efficiency can be significantly improved. Further, the connector terminal 30 is inserted into a predetermined window 29 of the upper sheet 27.
The electric connection can be easily performed simply by fitting the electric circuit, so that the branching of the electric circuit can be extremely easily performed. Furthermore, even if the back surface of the door trim 21 has a rugged surface shape, the circuit conductors 22, 26 and the sheets 24, 27 can bend freely and flexibly follow and be deformed. There is an advantage that not only can the circuit be taken as desired, but also that the circuit can be freely changed and manufactured.

Although the present embodiment has been described in detail, the specific configuration is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention, the present embodiment is not limited to this embodiment. Included in the invention. For example, although the circuit conductor was integrated with the door trim 21, a body panel such as a door inner panel, an instrument panel, a roof panel, a rear shelf, and a dash panel may be used.
Further, a metal material such as aluminum may be used, but in such a case, it is necessary to perform an insulation treatment by a surface treatment. Further, a circuit body having a single-layer structure, that is, a structure in which the upper layer bus bar 26 and the upper layer sheet 27 are not provided may be used. In this case, the connector terminal 30 is electrically connected to the bus bar 22 of the window 25 of the lower layer sheet 24. Although the circuit conductors 22 and 26 have a straight shape, they may be appropriately curved, meandering, bent or the like. When a plurality of busbars are installed, the busbars are installed in parallel with each other. No need to be done. Bus bars 22, 26
In place of this, a normal single bare electric wire, a circuit conductor such as an FPC (flexible printed circuit) or an FFC (flexible flat circuit) in which both surfaces of a copper foil punched into a circuit shape are sandwiched between insulating resin sheets may be used. .
Further, in order to prevent the circuit body 28 from peeling off the door trim 21 and falling off, a method of avoiding contact with the circuit conductors on the peripheral edges of the sheets 24 and 27 of each layer and pressing and fixing the circuit conductors with a stapler or the like may be used. Can be.

[0022]

As described above, according to the first aspect of the present invention, a circuit conductor is routed on a body panel having insulation properties, and insulation is provided along the entire length of the circuit conductor. Since the circuit conductor is fixed to the vehicle body panel by covering the sheet member with an adhesive, the surface shape of the vehicle body panel may be simple, and the circuit conductor is prevented from being embedded in the vehicle body panel. Therefore, a circuit body whose manufacturing cost is significantly reduced can be obtained. Also, since the circuit conductors are integrated into the vehicle body panel, the vehicle body can be assembled in an outfitting line of an automobile simply by incorporating the circuit conductors, and as a result, there is an excellent effect that work efficiency can be greatly improved.

According to the second aspect of the present invention, the circuit conductor is not covered, and the sheet member is provided with a window for exposing the circuit conductor, and the circuit conductor is exposed from the window. Since the connector device connected to the electric load is electrically connected, various electrical components can be easily and electrically connected to various electric components via the connector terminal at the position of the window according to the vehicle type and the specification, so that there is an advantageous effect.

According to the third aspect of the present invention, since the adhesive is applied to the sheet member side, the sheet member can be easily handled even under the vehicle body outfitting line, and the circuit conductor can be applied to the vehicle body panel. This has the effect of simplifying the installation.

According to the fourth aspect of the present invention, the upper layer circuit conductor is further layered and arranged on the sheet member, and the upper layer sheet member formed in the same manner as the sheet member is formed on the upper layer circuit conductor. Since the upper circuit conductors are sequentially laminated and fixed by laminating and covering, there is an effect that the circuit body can be appropriately formed into a laminated structure according to the type of the electrical component.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing assembling and disassembling according to an embodiment of the present invention.

FIG. 2 is an enlarged external perspective view taken along line AA of FIG. 1;

FIG. 3 is an external perspective view of a main part of a lower layer sheet.

FIG. 4 is an external perspective view showing assembly and disassembly in a conventional device.

FIG. 5 is an external perspective view of another conventional device.

FIG. 6 is a sectional view of a main part of still another conventional device.

FIG. 7 is an external view of still another conventional device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 21 Door trim (body panel) 22 Lower bus bar (circuit conductor) 23 Adhesive 24 Lower layer sheet (sheet member) 26 Upper layer bus bar (upper layer circuit conductor) 27 Upper layer sheet (upper layer sheet member) 28 Circuit body (circuit body for body panel) 30 Connector terminal

Claims (4)

[Claims] 1. A circuit conductor is routed on an insulative vehicle body panel, and an insulating sheet member is covered with an adhesive along the entire length of the circuit conductor, whereby the circuit conductor is mounted on the vehicle body panel. A circuit body for a vehicle body panel fixed to a panel. 2. A connector device, wherein the circuit conductor is not covered, and a window is formed on the sheet member to expose the circuit conductor, and the circuit conductor exposed from the window is connected to an electric load. The circuit body for a vehicle body panel according to claim 1, wherein the circuit body is electrically connected. 3. The circuit body for a vehicle body panel according to claim 2, wherein the adhesive is applied to the sheet member side. 4. An upper circuit conductor is further layered and arranged on the sheet member, and an upper sheet member formed in the same manner as the sheet member is layered and covered on the upper circuit conductor to form the upper circuit conductor. The circuit body for a vehicle body panel according to claim 3, wherein the circuit body is configured to be sequentially laminated and fixed.