DE10111100A1 - Motor vehicle door bearer plate has elements for positioning electrical and/or optical cable connections; individual element circumference does not increase with distance from plate surface - Google Patents

Abstract

The bearer plate (2) has one or more electrical and/or optical cable connections for connecting one or more functional units mounted on the bearer plate to one or more other units and contains at least some plastic. The plastic of the bearer plate has at least one surface with individual elements for positioning the cable connections, whereby the circumference of the individual elements does not increase with increasing distance from the surface.

Description

The invention relates to a carrier plate of a motor vehicle door with one or more electrical and / or optical line connections that are used to connect min At least one functional unit (e.g. door control unit, light, loudspeaker) with one or serve several other units.

A method for producing a prefabricated door module for a motor vehicle door is known from DE 196 25 974 C1. This is a prefabricated motor vehicle door module with an electronic unit and several electrical components, such as. B. Power window motor, central locking, mirror adjustment and heating, switch, Lights, speakers, sidebags or the like are made, being in a main assembly line the equipment of the carrier plate with that for a specific vehicle door provided electrical components and their wiring by means of electrical  Lines. At least some of the electrical lines are considered as one Cell conductor connections in a secondary cable production line with exact sequence Door module production pre-assembled in a packaging device and then arranged in a main assembly line on the door module. The positioning before Assembled cable is not solved or only very complex.

The invention is therefore based on the object, a carrier plate with means for Posi tionation of electrical or optical line connections on a carrier plate specify a motor vehicle door that simplifies and process-reliable automatisable re or manual positioning of electrical or optical line connections made possible.

This object is achieved by the features of independent claim 1. Advantageous developments of the invention can be found in the subclaims.

Accordingly, a plastic of the carrier plate has at least partially a surface Individual elements for positioning line connections, with increasing the distance from the surface the scope of the individual elements is not expanded. This is particularly advantageous as compared to the base of the individual elements constant or tapering extent a simple manufacture, at is made possible, for example, by an injection molding process. The individual elements are in place individually from the surface of the plastic. Will be a variety of individual items different laying methods are possible.

The positioning of the line connections is in a first embodiment of the Erfin by laying the cable connections between the individual elements possible. A large number of the individual elements are used to ensure a safe position tion and optionally a pre-attachment. The individual elements are so close to each other that the distance between at least some of the inputs individual elements is less than the thickness of the line connections.

Alternatively, positioning takes place in a second embodiment of the invention by that the line connections in a designated area, for example as an eyelet, the line connections of the individual elements, in particular of Plastic needles as individual elements to be pierced. With increasing number of Plastic needles along the route will position the line ver binding specified.  

Another possibility of positioning is the plastic deformation of some single elements along the route. In addition, other options are available Positioning through the individual elements by means of a force fit or form fit is conceivable.

The positioning by means of the individual elements serves in particular to pre-fasten the Line connections at a designated place on the carrier plate. Are the Forces that can only loosen the pre-fastening can be small tioned pipe connections must be permanently attached by the plastic needles. In a motor vehicle door in particular, high slamming occurs when the door is slammed Accelerating forces on, so that the positioned line connections after the Positioning must be fixed by a fastener.

One or more electrical and / or optical Lei are in the assembled state Connection connections for connecting at least one functional unit, such as for the game door control unit, light or loudspeaker, with one or more additional inputs units positioned on a carrier plate of a motor vehicle door. For positioning points the carrier plate at least partially on the plastic with the individual elements.

The carrier plate is generally used to hold functional units, such as for example a lamp or a display unit. It is also possible that the Trä Other functions, such as a design function, for example as part of the door interior trim of the motor vehicle door takes over, in which the lamp as Near field light is attached to the floor illumination. Advantageously, the carrier but part of a door module. The door module generally has mechani cal, electrical and electromechanical functional units, such as a window regulator an electric motor drive and a part of a Zuziehgriffs. To the function of the mechanical and electromechanical function To ensure permanent units, the support plate of the door module has a corresponding mechanical strength.

Today's carrier plates for door modules are usually made of metal. In too Increasing dimensions are plastic carrier plates or metallic carrier plates Plastic insert parts are used, which is an additional way of integrating other functions, such as integrated window lifter guide rails possible. Such plastic carrier plates or plastic insert parts are used for example, manufactured in a plastic injection molding process. However, it is limited  the invention does not apply to carrier plates, which are produced by plastic injection molding , alternatively, all other methods of production are also suitable for the invention reversible. Demolding in the plastic injection molding process takes place in demolding direction. The body axes of all geometrical are along this direction of demoulding Basic body aligned. If a plastic outsert technique is used, at for example sheet metal stampings in an injection mold for the carrier plate before Injection molded.

To enable easy recycling of the carrier plate, are advantageously without exception separable or recyclable plastics selected in combination. For example, it can be advantageous for the plastic of the carrier plate, depending on me mechanical stress to use different plastics.

The individual elements can be manufactured in various basic geometric shapes. Be A combination of different basic shapes is used particularly advantageously. So the individual elements can be adapted to mechanical loads or cable thicknesses become. The individual elements are in particular needle-shaped, rib-shaped or lamella lenförmig.

Needle-shaped individual elements, that is to say plastic needles, are preferably used, because these allow a particularly flexible positioning of the line connections. In the direction of the body axis of art given by the direction of the demolding the needles of cloth does not increase, but advantageously decreases, so that a simple and reliable demolding is guaranteed. It’s not necessary that the surface of the plastic on which the plastic needles are arranged, is flat over the entire route of laying, rather the positioning is over a more complex geometry of the carrier plate is possible.

In an embodiment of the invention, the areas with the individual elements exist Positioning of the line connections made of an elastic plastic, in particular re a thermoplastic elastomer, while areas for absorbing large forces, for example that of the window regulator, from a much stiffer, for example reinforced with fibers, plastic. Such complex carrier plates will be advantageously in a multi-component technology, for example a 2K technology manufactured. Alternatively, the elastic plastic with the individual elements on the Carrier plate, for example by gluing, attached. So besides being elastic or plastic  deformable line connections advantageously also the positioning rigid conductor possible.

In an alternative embodiment of the invention, the individual elements are designed as rigid elements. This can be used advantageously, for example, to manufacture the carrier plate and the plastic needles in an injection mold in one process step. Electrical or optical conductors or bundles of conductors with an elastically deformable insulation are advantageously positioned between the rigid individual elements, so that the line connections are radially plastically or elastically deformable. In order to optimize the forces for fastening or pre-fastening, the individual elements or the insulation of the line connection have a correspondingly rough surface with a high R _Z value.

In a further embodiment of the invention, the individual elements are ver plastic malleable elements executed. The deformation takes place under opti accordingly conditions. For example, a defined force is required as a condition mung necessary. Alternatively, a change in temperature causes the deformation to occur shaft of the individual elements adapted. For positioning, at least advantageously at least a part of the individual elements along a line connection to be formed to position thick pipe connections with a larger diameter. The single soul elements are also advantageous for a position after positioning Corresponding attachment deformed. For example, a stamp for reshaping the individual l elements used. This effectively prevents rattling noises.

If the positioning of the line connections is to be automated, so is at least a part of the line connections as single line connections to the Carrier plate positioned independently of one another. To the single line connections To be arranged independently, in contrast to the conventional wiring harness, each elec trical or optical single line connection laid individually by a machine, the automaton, of course, several individual line connections timely to increase the overall process speed.

Due to the variety of equipment, depending on the equipment variant of the carrier plate, For example, with or without speakers, electrically adjustable mirrors, etc., the Carrier plate with different wiring connections. This has against The advantage over the previous cable harnesses is that not for every equipment variant a special wiring harness is required, but that the configuration of the wiring  can be taken over by the machine. The single line connections brew accordingly can only be supplied by the meter, which means the logistics effort and significantly reduces the risk of incorrect assembly.

In a development of the invention, they are positioned between the individual elements ten pipe connections fastened with a fixative. Are suitable as fixative all materials that adhere to the plastic of the individual elements. Just be an example here called adhesives, foams or varnishes for a cohesive adhesive attachment. It can also be used, for example powdered plastics, the for a corresponding liability through the appropriate supply of energy with the plastic the plastic needles are mixed.

Another development of the invention provides for the attachment of the positioned lei tion connections between the individual elements by means of a fixing element. The fixing element is advantageously provided for a further function. example wise, the fixing element is part of the door lining, which ent the individual elements speaking deformed. For example, the foamed individual elements can interfere dampen the mechanical vibrations of the door lining or the carrier plate or absorb.

Alternatively, the door lining is attached to the individual elements, so that the Line connection between the support plate and the door interior trim is fixed. This version also allows the door panel to be positioned Support plate. Furthermore, other functional units, such as crashpad, Leuch ten or electrical elements, or spacers used as a fixing element.

In the following, the invention is based on exemplary embodiments graphic representations explained in more detail.

Show

Fig. 1 is a schematic representation of a door module of a motor vehicle door with a carrier plate made of plastic,

Fig. 2 is a schematic three-dimensional representation of elastic plastic needles for positioning a duct element,

Fig. 3 is a schematic plan view of positioning between the plastic needles th line elements,

Fig. 4 is a schematic three-dimensional representation of rigid Kunststoffna spindles for positioning of line elements,

Fig. 5 is a schematic sectional view of plastically deformable plastic needles for positioning a wire bundle.

In Fig. 1, a door module of a motor vehicle door is shown schematically. The door module has a self-supporting carrier plate 2 made of plastic. The three-dimensional geometry of the carrier plate 2 is essentially adapted to the geometry of the motor vehicle door in which it is to be installed. It is made in one piece from plastic or as a hybrid with another material, wherein the layer thickness of the carrier plate 2 can vary between 0.1 to 5 cm. On the support plate 2 , several functional units, such as woofers 11 , tweeters 12 , door control unit 13 , window lifter drive 14 , card pocket light 15 , control keyboard 17 , door opener 18 with a microswitch, apron or entrance lamp 16 and door lock 19 , are mounted. In addition, the door module has plugs 100 , 101 to the outside mirror ( 101 ) and to the A-pillar ( 100 ), which enable a connection to other units of the motor vehicle, for example the car battery.

Furthermore, the carrier plate 2 has areas for positioning line connections 3 for an electrical or optical connection of the functional units 11 to 19 or the plugs 100 , 101 . These separate areas have plastic needles 21 for positioning the line connection 3 . The plastic needles 21 are molded in the injection molding of the plastic of the carrier plate 3 . As an alternative to injection molding, manufacturing processes such as embossing, pressing, internal gas pressure, Kas injection molding, SMC, deep drawing, foaming or slushing of the plastic are also used.

Furthermore, the mechanical strength of the carrier plate 2 is increased by stiffening ribs 20 . The stiffening ribs 20 are in this case diagonally and offset angeord net to increase the stability of the support plate. In the areas for positioning, the stiffening ribs 20 are advantageously arranged on the back (starting from FIG. 1), ie on the wet room side. 1, parts not shown in FIG. 1 to increase the strength of the carrier plate 2 are preferably stamped sheets which are connected to the plastic of the carrier plate 2 by means of an insert or outsert technique, that is to say a combination of stamping and injection molding technology.

The door module contains numerous plastic functional elements as integral parts. The feature integral means that the functional elements with the carrier plate 2 are made together, so no additional manufacturing step be necessary. You can form a unit with metallic parts of the door module so that they cannot be detached from the metal bodies. An example of an integral functional element is the peripheral sealing profile 22 of the carrier plate 2 shown in FIG. 1, which enables a sealing separation of the motor vehicle door into a wet room and a dry room with a correspondingly introduced sealing compound. The plastic needles 21 are made in this embodiment as integral functional elements together with the support plate 2 . The functional units 11 to 19 are fixed on the plastic of the carrier plate 2 by force-locking, positive locking or material locking, for example in the form of an adhesion promoter. For mechanical anchoring of the functional units, screws are preferably used for screwing onto the carrier plate 2 .

In Fig. 2, a three-dimensional view of elastic plastic needles 21 a for Po sitioning a line element 3 a is shown schematically. Can, for example approximately In this exporting accordingly a rigid and possibly flexible element a Leitungsele be positioned. 3 The plastic needles 21 a consist of a thermoplastic elastomer. For a corresponding elasticity, the plastic needles 21 a are made in one piece with a plastic plate, not shown, made of the same material. The plastic plate is attached to the carrier plate by an adhesive, a fastex connection or by a plastic welding process.

A schematic plan view of line elements 3 b and 3 b 'positioned between plastic needles 21 b is shown in FIG. 3. The rigid plastic needles 21 b are made in one piece with the carrier plate 2 b from plastic. The line elements 3 b and 3 b 'have an elastic insulation, for example made of PE, PVC or TPE. For different line thicknesses, the line elements 3 b 'are placed at an appropriate angle ver. For the final fixation, a fixative, here a hardening foam, is used, which is at least partially foamed after positioning. In addition, the plastic needles 21 b have a rough surface to improve the adhesion of the show mes.

Analogously to FIG. 3, the plastic needles 21 c are formed in one piece with the carrier plate (not shown) in FIG. 4. Instead of the fixing material 4 b of FIG. 3, a fixing element 5 c is used to fix the positioned line connection 3 c. The fi xing element 5 c here is part of a switch block for controlling the functional units of the door, which is aligned and positioned by the fixing element 5 c and the plastic needles 21 b in addition to the door module. In addition, the plastic needles can also 21b for pre-positioning of connector housings are used.

Fig. 5 shows a schematic sectional view of plastically deformable plastic needles 21 d 'and 21 "d to the positioning of a line bundle 3 d. Such Lei tung bundle 3 d is known to be produced as a wire harness for a door wiring, by a plurality of wire strands or optical fibers by an adhesive tape be tied together to form a wiring harness, which is shown in a very simplified manner in FIG. 5.

If, as in FIGS. 2, 3 and 4, rigid or elastic but dimensionally stable plastic needles 21 a, 21 b or 21 c are used, the distance between the plastic needles 21 a, 21 b or 21 c is the diameter of the line connections 3 a, 3 b and 3 c to adjust accordingly to prevent accidental falling out of the position. Accordingly, different distances between the plastic needles 21 a, 21 b or 21 c are provided for different diameters of the line connections 3 a, 3 b and 3 c.

In FIG. 5, the plastic pins 21 are d, 21 d 'or 21 d ", however, plastically deformable so that thick line bundle 3 d positioned and then by the plastic deformation of plastic needles 21 d' may also be fixed. An at least locally elevated temperature is advantageous for this plastic deformation. For such a fixation, the shape of the plastic needles 21 d, 21 d 'and 21d "is optimized, so that thin and long plastic needles are used in this embodiment, in particular in relation to the line bundle.

In addition, the plastic needles are advantageously used in other double functions. For example, the plastic needles are foamed and acoustically optimized in order to Silencer to the noise generated by mechanical functional units dampen or improve the acoustic properties of the speaker system, in where the sound reflections are reduced.

According to the individual embodiments, for the plastic needles Functional units or the carrier plate adapted to the respective function plastics  used. In addition to standard polymers such as polyolefins (polypropylene or polye thylene) are preferably also plastics based on, polyamide, polyester, polyphe nylene oxide, polyoxymethylene, polyphenylene sulfide, polyurethane, polycarbonate or copo polystyrene-based polymers such as acrylonitrile-styrene-acrylic ester copolymers or acrylonitrile To name butadiene-styrene copolymer, which may also be with glass, steel, carbon, macaw mid or natural fibers can be reinforced. Polyes in particular are polyes used ethylene terephthalate or polybutylene terephthalate. The fiber reinforcement is optionally with long fibers, short fibers, fiber flow and / or fiber mats. Be If the carrier plate is made of several plastics, the process steps are sequential or carried out simultaneously over several units.  

LIST OF REFERENCE NUMBERS

11

woofer

12

tweeter

13

Door control unit

14

Power window

15

Light, map pocket

16

Lamp, apron

17

operation keyboard

18

Door opener with microswitch

19

door lock

100

A-pillar connector

101

Side mirror connector

2

.

2

b

2

d carrier plate

20

Stiffening ribs on the carrier plate

21

.

21

a,

21

b

21

c,

21

d,

21

d '

21

d "Plastic needles of the carrier plate for line positioning

22

all-round sealing profile of the carrier plate

3

.

3

a,

3

b

3

b '

3

c,

3

d line connection

4

b Fixing material for fastening

5

c fixing element

Claims (18)

1. Carrier plate of a motor vehicle door with one or more electrical and / or optical line connections, which for connecting at least one func tion unit (e.g. door control unit, lamp, loudspeaker), which is mounted on a carrier plate of a motor vehicle door, with one or more others Units which, where
the carrier plate has at least partially plastic,
characterized in that
the plastic of the carrier plate has at least partially a surface with individual elements for positioning the line connections, with increasing the distance from the surface the circumference of the individual elements is not expanded. 2. carrier plate according to claim 1, characterized in that the individual elements are needle-shaped, rib-shaped or lamellar. 3. carrier plate according to one of claims 1 or 2, characterized in that the individual elements are designed as rigid elements. 4. carrier plate according to one of claims 1 or 2, characterized in that the individual elements are designed as elastic elements. 5. carrier plate according to one of claims 1 or 2, characterized in that the individual elements are designed as plastically deformable elements. 6. carrier plate according to claim 3, characterized in that the line connections are radially plastically or elastically deformable. 7. carrier plate according to claim 5, characterized in that at least some of the individual elements are formed along a line connection  is. 8. carrier plate according to one of the preceding claims, characterized in that at least some of the line connections as single line connections on the Carrier plate are positioned independently of each other. 9. carrier plate according to one of the preceding claims, characterized in that the line connections positioned between the individual elements by means of a Fixer are attached. 10. carrier plate according to one of claims 1 to 8, characterized in that the line connections positioned between the individual elements by means of a Fixing element are attached. 11. carrier plate according to claim 10, characterized in that the fixing element is attached to at least some of the individual elements. 12. carrier plate according to claim 11, characterized in that as a fixing element, a functional unit to be attached to the support plate anyway serves. 13. carrier plate according to one of the preceding claims, characterized in that the individual elements different distances for different thicknesses of the lei have connection connections. 14. Support plate according to one of the preceding claims, characterized in that the plastic with the individual elements in one piece with the carrier plate made of art fabric is made.   15. carrier plate according to one of claims 1 to 13, characterized in that the plastic with the individual elements in one piece as an insert or outsert part the carrier plate is made. 16. carrier plate according to one of claims 1 to 13, characterized in that the plastic with the individual elements is attached to the carrier plate. 17. Carrier plate of a motor vehicle door with one or more functional units (for example door control unit, lamp, loudspeaker) which are mounted on a carrier plate of a motor vehicle door, wherein
the carrier plate has at least partially plastic,
characterized in that
the plastic of the carrier plate has at least partially a surface with individual elements for positioning the functional units, the circumference of the individual elements not expanding with increasing distance from the surface. 18. carrier plate according to claim 17, characterized in that the functional units are additionally fastened by the individual elements.