JP2008195174A - Instrument panel structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an instrumental panel structure to be able to electrically connect an electronic component mounted easily, to simplify the attaching, and to thin down the wall. <P>SOLUTION: A connector 3 for electric wiring of a predetermined wiring pattern is embedded in an instrumental panel 2a made of a synthetic resin, and integrally formed so as to shape in a predetermined three-dimensional shape. A connection exposure portion 9 is provided corresponding to an attached position of the electronic component 20 in the rear surface of the instrumental panel 2a. The connection exposure portion 9 exposes a conductor 3a of the connector 3. The connection exposure portion 9 forms a connector connecting portion 10 to store part of the electronic component 20. A connecting terminal of the electronic component 20 comes in contact with the conductor 3a of the connector 3 in the connection exposure portion 9, so that wiring is connected while attached by inserting the part of the electronic component 20 into the connector connecting portion 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an instrument panel structure for an automobile, and more particularly to an instrument panel structure in which a wiring body for wiring-connecting electronic components to be mounted is embedded in an instrument panel and integrally molded.

  Generally, an instrument panel composed of an upper panel and a lower panel is equipped with various instruments and various devices for audio and car navigation. Wire harness connectors are connected to the electronic components of the mounted devices, and wiring is connected. The wire harness is assembled to the back side of the upper panel of the instrument panel with a clamp to prevent it from falling off.

This instrument panel is not provided with reinforcing structures such as protrusions and reinforcing ribs as much as possible in order to maintain the design without causing so-called sink marks on the surface. Therefore, in order to maintain strength and rigidity, the instrument panel is inevitably thick.
JP 2003-152411 A

  In the conventional instrument panel structure, a wire harness and various parts are individually mounted on an instrument panel composed of an upper panel and a lower panel, and are fastened and fixed by screws or the like. Moreover, since the wire harness and the electronic component are connected by the connector portion, not only the number of a series of work processes is increased, but the number of components is also increased.

  In particular, when the parts to be attached to the instrument panel have sharp edges and corners, if the attached parts come into contact with the wire harness, the wire harness may be damaged or cut and the electrical wiring may be shorted or cut. To do. In order to avoid these problems in advance, the wire harness has an electric wiring covered with vinyl or a resin-like tube-shaped protective cover. Therefore, the weight of the components mounted on the instrument panel increases, and there is a problem that there is no flexibility in selecting components and it cannot be easily assembled.

  In addition, the instrument panel can only be formed thick in order to maintain the design requirements and strength and rigidity, and cannot be reduced in thickness and weight.

  In view of the above-described problems, an object of the present invention is to provide an instrument panel structure in which electronic components to be mounted can be easily connected by electrical wiring to facilitate assembling work and can be thinned.

In order to achieve the above object, according to the present invention, in an instrument panel structure disposed in a vehicle interior, a wiring body for electrical wiring is embedded in a synthetic resin instrument panel in a predetermined wiring pattern. It is characterized by.
Specifically, in the structure of an instrument disposed in the interior of an automobile, an instrument panel made of synthetic resin, and a wiring body for electric wiring embedded in the instrument panel with a predetermined wiring pattern are provided. The connection exposed portion is provided on the back side of the instrument panel, and the wiring body is partially exposed.
In the above configuration, it is preferable that an attachment member for fixing the electronic component is provided integrally with the instrument panel in the vicinity of the connection exposed portion. The wiring body is preferably formed of one or a plurality of conductive wires having a round cross section or a rectangular cross section.

  With the above configuration, since a wiring body for electrical wiring is embedded in the instrument panel and insert-molded, the reinforcing rib can be reduced and the instrument panel can be thinned while maintaining the strength and rigidity of the instrument panel. By embedding a bare conducting wire as a wiring body in an instrument panel made of synthetic resin, it is not necessary to provide a covering material around the conducting wire. Since the component to be attached does not directly touch the conductive wire, there is no need to provide a protective material such as a protective tube around the wiring body. Therefore, since it is not necessary to provide a wire harness etc. inside an instrument panel, the narrow space enclosed by the upper panel and the lower panel can be used effectively. Therefore, for example, it is possible to optimize the shape of the air conditioning component mounted on the instrument panel and improve the air conditioning performance.

  An exposed portion for connection for attaching a part of the electronic component is provided on the back side of the instrument panel, and this exposed portion for connection exposes a part of the wiring body embedded in the instrument panel. Therefore, by attaching the electronic component to the instrument panel so that the connection terminal provided on the electronic component is brought into contact with the wiring body, the wiring connection operation of the electronic component and the attachment operation to the instrument panel can be performed simultaneously. Can do.

  According to the present invention, since the wiring body is embedded and integrally molded in the instrument panel, it is not necessary to separately assemble the wire harness, and the thickness can be reduced while maintaining the strength and rigidity. In the exposed part for connection on the back side of the instrument panel, the electronic component assembly work and the electronic component wiring connection process are performed simply by assembling the electronic component so that the connection terminal of the electronic component contacts the exposed wiring body. Therefore, the assembling work can be simplified and made efficient.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 is a perspective view showing an instrument panel structure according to the present invention, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is a cross-sectional view taken along line BB in FIG. is there. An instrument panel structure 1 according to the present invention joins an upper panel 2a and a lower panel (not shown) extending in the vehicle width direction, has a gentle arc shape at the front side, and has a three-dimensional shape as a whole. . In the present invention, in particular, the wiring body 3 having a predetermined wiring pattern is embedded in the upper panel 2a and integrally formed. In FIG. 1, the wiring body 3 is indicated by a broken line. Since the upper panel 2a and the lower panel constituting the instrument panel 2 are each made of a synthetic resin having electrical insulation, the wiring body 3 is inserted so as to have a predetermined wiring pattern in the middle of the molding process of the upper panel 2a. And integrally molded.

  Therefore, the instrument panel 2 can be thinned while the strength and rigidity of the instrument panel 2 are maintained by the embedded wiring body 3. Further, since the wiring body 3 is embedded in the wiring pattern, it is not necessary to separately assemble the wire harness.

  The upper panel 2a and the lower panel of the instrument panel 2 are formed according to the type of vehicle to be arranged. Referring to the case shown in FIG. 1, the upper panel 2a is provided with openings 4a and 4b at the left and right ends, respectively, as shown in FIG. Air conditioning equipment for air conditioning is provided. An opening 5 for attaching instruments is provided on the indoor side of the right opening 4b. The meter panel mounting opening 5 has a horizontally long arc shape with a gentle upper part. An opening 7 for attaching a glove box is provided on the indoor side of the left opening 4b. The opening 7 is horizontally long and has a gentle arc shape at the upper left and right edges. Between the opening 5 for attaching the instruments and the opening 7 for attaching the glove box, an opening 6 for attaching various audio devices and navigation devices is provided. In the upper panel 2a, the front edge portion has a substantially arc shape, and elongated openings 8a, 8b, 8c arranged along the arc shape of the front edge portion are provided on the inner side of the front edge portion to form the air outlet of the defroster. . The openings 4a, 4b, 5-7, and 8a-8c penetrate the front and back of the upper panel 2a and are configured to have predetermined dimensions and shapes.

  The wiring body 3 embedded in the upper panel 2a is composed of a conductor having good electrical conductivity, for example, a conductor 3a made of copper steel. Several conducting wires 3a having a round cross section are embedded in the upper panel 2a in parallel with each other so as to have an appropriate interval. At this time, if the wiring body 3 is a bare conducting wire 3a, it is necessary to provide an appropriate interval so that the conducting wires 3a do not contact each other. However, the wiring body 3 has an insulating coating around the conducting wire 3a. If provided, there is no need to provide a gap between the insulating coatings.

  The wiring body 3 has a wiring pattern corresponding to the arrangement of electronic components to be connected. In the case of FIG. 1, the wiring body 3 includes an opening 4 a for the left outlet, an opening 7 for attaching a glove box, an opening 6 for attaching various audio devices and navigation devices, and for attaching instruments. Between the left and right ends along the vehicle width direction, between a series of openings composed of the opening 5 and right opening 4b and the openings 8a, 8b, 8c for the air-conditioning air outlet of the defroster. The main line 3A is arranged in a curved line.

  The left end 3B of the main line 3A of the wiring body 3 is bent and extends along the vertical direction of the left outlet 4a. The right end 3C of the main line 3A of the wiring body 3 is bent so as to be disposed between the opening 5 for instrument attachment and the opening 4b for the right outlet, to the right of the opening 5 for attachment of the instrument. It bends again at the lower end and extends to the vicinity of the lower left end of the opening 5 for attaching instruments. Between the opening 7 for attaching the glove box and the opening 6 for attaching various audio devices and navigation devices, a branch is made from the main line 3A for wiring connection to various electronic components attached to the opening 6. Branch line 3D is then wired. Further, a branch line 3E branched from the main line 3A is wired toward three openings 8a, 8b, 8c, etc., which are continuously provided in the vehicle width direction on the front edge side as an air outlet of the defroster.

  The wiring body 3 is embedded in the upper panel 2a as shown in FIGS. 2 and 3, and a plurality of conducting wires 3a having a round cross-sectional shape perpendicular to the longitudinal direction are arranged in parallel at predetermined intervals. FIG. 4 is a cross-sectional view showing a modification of FIG. As shown in FIG. 4, the conducting wire 3a may have a flat plate shape with a rectangular cross section perpendicular to the longitudinal direction. As shown in FIGS. 3 and 4, the number of conducting wires 3a constituting the wiring body 3 may be plural or one, and the cross-sectional dimension of the conducting wire 3a is determined according to the magnitude of the flowing current.

FIG. 5 is an exploded view showing the assembly of the electronic component 20 to the connection exposed portion 9 on the back side of the upper panel 2a. FIG. 6 is a cross-sectional view taken along the line CC in a state where the electronic component 20 is assembled to the connection exposed portion 9. FIG. 7 is a perspective view showing a part of the electronic component 20 on the connection exposed portion 9 side.
On the back side of the upper panel 2a in which the wiring body 3 is embedded, an exposed portion 9 for connection exposing the wiring body 3 is formed. A connector connection portion 10 is formed on the upper panel 2 a so as to surround the connection exposed portion 9. The connector connecting portion 10 is housed so that a part of the various electronic components 20 is fitted therein, and electrically connects the conductor 3 a of the wiring body 3 and the connection terminals 21 of the electronic component 20.

  Here, in the connection exposed portion 9, only the conductive wire 3 a connected to the electronic component 20 in the wiring body 3 may be exposed. The connecting exposed portion 9 forms the connector connecting portion 10 so as to have a recess without partially providing the portion of the upper panel 2a on the back side of the conducting wire 3a of the wiring body 3 in the upper panel 2a. The concave portion of the connector connecting portion 10 is defined by the concave wall portion 10a so as to be recessed from the back surface of the upper panel 2a to the position where the wiring body 3 is embedded. A part of the recessed wall portion 10a forms an insertion port 10b, and the distal end portion 22a of the electronic component 20 is inserted and locked.

  In the connector connecting portion 10, a pair of mounting bosses 11 are integrally formed in the vicinity of the connecting exposed portion 9 as mounting means for fixing the electronic component 20 to be mounted. The mounting boss 11 includes a screw receiving portion 11a and an auxiliary portion 11b protruding from the back surface of the upper panel 2a. The screw receiving portion 11a has a spiral groove formed on the inner peripheral surface of the cylindrical portion. The auxiliary portion 11b is formed in a rod shape in the vicinity of the screw receiving portion 11a. Here, the mounting boss 11 may be perpendicular to the back surface of the upper panel 2 a or may be inclined along the direction in which the electronic component 20 is inserted into the connector connecting portion 10.

  As shown in FIGS. 5 and 7, the electronic component 20 attached to the connector connection portion 10 includes a casing 24 that covers the substrate 23 on which the chip 23 a is mounted from the front side, and the casing 24 is on the attachment side to the connector connection portion 10. Includes a terminal protection cover 22. A connection terminal 21 electrically connected to the wiring formed on the substrate 23 is provided on the back side of the substrate 23 on the terminal protection cover 22 side. As shown in FIG. 6, the connection terminal 21 is substantially L-shaped, and the tip has a notch 21a. As shown in FIG. 7, the notch 21a meshes with and comes into contact with each conductor 3a of the wiring body 3 embedded in the upper panel 2a in the wiring exposed portion 9, and the conductor 3a of the wiring body 3 and the wiring on the substrate Are electrically connected.

  Here, in the electronic component 20, attachment pieces 25 are respectively provided on the left and right side portions of the casing 24. The attachment piece 25 is provided in the casing 24 so as to correspond to the inclination of the attachment boss 11 on the back side of the upper panel 2a to which the casing 24 is attached. Therefore, the mounting piece 25 and the back surface of the upper panel 2a in the vicinity of the base of the mounting boss 11 face each other, and the casing 24 can be fixed to the back surface of the upper panel 2a. The attachment piece 25 is provided with large and small insertion holes 25a and 25b.

Since the instrument panel 2a and the electronic component 20 are configured as described above, the electronic component 20 can be assembled to the connector connecting portion 10 of the upper panel 2a of the instrument panel 2. That is, the front end portion 22a of the terminal protection cover 22 is inserted into the insertion port 10b of the recess wall portion 10a and locked to the connection exposed portion 9 on the back side of the upper panel 2a. At substantially the same time, the connection terminal 21 of the electronic component 20 is engaged with and brought into contact with the conducting wire 3a of the wiring body 3, and a part of the electronic component 20 is inserted into the connector connecting portion 10. Finally, the auxiliary portions 11b of the left and right mounting bosses 11 are temporarily fixed through the small insertion holes 25b of the left and right mounting pieces 25, and the screw receiving portions 11a of the left and right mounting bosses 11 are temporarily inserted into the large insertion holes of the left and right mounting pieces 25. The screw (not shown) is screwed to the screw receiving portion 11a through the insertion hole 25a.
Wiring connection between the electronic component 20 and the wiring body 3 can also be performed only by performing the above attachment work.

  In the above description, the case where the wiring body 3 is embedded in the upper panel 2a has been described. However, the wiring body can also be embedded in the lower panel. Therefore, in the instrument panel 2 of the present invention, since the wiring body 3 is embedded in the upper panel 2a and the lower panel and insert molding is performed, the rigidity and strength of the upper panel 2a and the lower panel are reinforced. Therefore, the thinning of the upper panel 2a and the lower panel can be achieved.

  Further, on the back side of the instrument panel 2, a connector connection portion 10 for mounting various electronic components 20 in measuring instruments and various devices is defined by a connection exposure portion 9. Therefore, the connection terminal 21 provided on the electronic component 20 can be meshed with the wiring body 3 in the connection exposed portion 9 to be electrically connected to supply necessary electrical energy to the electronic component 20 and transmission / reception of control signals and the like. Can be performed. At this time, it is not necessary to provide a connector for connection wiring as in the conventional case on the conductive wire 3a of the wiring body 3 that is engaged with and electrically connected to the connection terminal 21, and the electronic component 20 is fitted into the connector connection portion 10 as in the prior art. Since the connection terminal 21 provided on the electronic component 20 only needs to be brought into contact with the conducting wire 3a of the wiring body 3, the wiring connection work of the electronic component 20 can be performed simultaneously only by mounting the electronic component 20.

  The present invention is not limited to the above embodiment, and can be implemented in various forms without departing from the scope of the invention described in the claims.

It is a perspective view which shows the instrument panel structure which concerns on this invention. It is sectional drawing along the AA line of FIG. It is sectional drawing along the BB line of FIG. It is sectional drawing which shows the modification of FIG. It is an exploded view which shows the assembly | attachment of the electronic component to the exposure part for a connection in the back side of an upper panel. It is sectional drawing which follows the CC line in the state which assembled | attached the electronic component to the exposed part for a connection. It is a perspective view which shows a part by the side of the connection exposed part in an electronic component.

Explanation of symbols

1: Instrument panel structure 2: Instrument panel 2a: Upper panel 3: Wiring body 3a: Conductor 3A: Main line 3B: Left end 3C: Right end 3D: Branch line 3E: Branch lines 4a, 4b, 5, 6, 7, 8a , 8b, 8c: Opening 9: Exposed portion for connection 10: Connector connecting portion 10a: Recessed wall portion 10b: Insertion port 11: Mounting boss (mounting member)
11a: Screw receiving part 11b: Auxiliary part 20: Electronic component 21: Connection terminal 21a: Notch part 22: Terminal protection cover 22a: Tip part 23: Substrate 23a: Chip 24: Casing 25: Mounting pieces 25a, 25b: Insertion hole

Claims (4)

In the structure of the instrument panel arranged in the interior of the automobile,
An instrument panel structure in which a wiring body for electrical wiring is embedded in a synthetic resin instrument panel with a predetermined wiring pattern. In the structure of an instrument arranged in the interior of an automobile,
An instrument panel made of synthetic resin, and a wiring body for electrical wiring embedded in the instrument panel with a predetermined wiring pattern,
An instrument panel structure, wherein an exposed portion for connection is provided on the back side of the instrument panel, and the wiring body is partially exposed.   The instrument panel structure according to claim 2, wherein an attachment member for fixing an electronic component is provided integrally with the instrument panel in the vicinity of the connection exposed portion.   The instrument panel structure according to claim 2, wherein the wiring body is configured by one or a plurality of conductive wires having a round cross section or a rectangular cross section.

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