DE10317887B4 - Vehicle roof with a roof opening that can be closed by a lid and a sliding headliner - Google Patents

Abstract

Vehicle roof, with a roof opening (12), which is closed by a cover (14), and a sliding headliner (16) which is displaceable in the roof longitudinal direction, to cover the lid or the roof opening with respect to the vehicle interior (18) or at least partially uncovered, the cover having a solar generator (28) and an electrically conductive holding arrangement, which is in electrically conductive connection with the vehicle body, characterized in that the holding arrangement comprises a planar, electrically conductive connecting element which in the region of the solar generator (28) is arranged to provide electrical shielding of the solar generator.

Description

The present invention relates to a vehicle roof according to the preamble of claim 1.

Openable vehicle roofs, the roof opening of which is closed by a lid, in particular a cover provided with solar cells, have been known for some time. If such a cover is designed as a glass or plastic cover, a so-called cover inner panel is usually foamed on the underside of the cover as a support frame. It is also common, if the lid is transparent at least in a sub-area to provide below the lid a sliding headliner, which is displaceable in the roof longitudinal direction to cover the lid or the roof opening with respect to the vehicle interior either selectively or at least partially expose the sunlight into the vehicle interior through the lid or the roof opening through the sliding headlining according to the wishes of the vehicle occupants to adjust.

In such arrangements, there is a problem that can be charged statically by the operation of the sliding headliner of the sliding sky. If the cover is not provided with solar cells, it may result as the main problem that the charge balance between the sliding headliner and the vehicle body on the attraction of dust particles to the sliding headliner, whereby the sliding sky dirty and darker after a certain time than the fixed headliner of the vehicle, which affects the visual appearance of the roof area. If the cover is provided with solar cells, the charge balance between the sliding headliner and the vehicle body can be made inductively via the solar cells on the contacts for the solar cells. The voltage peaks can be 40 kV and more, whereby the lying in the vicinity of the contacts of the solar cell electronics, for example, an electric drive for the lid and / or the sliding sky or roof nodes, destroyed or disturbed. Particularly affected in this case are solar lids without DC / DC converters. An antistatic coating of the fabric of the sliding headliner is often not enough in practice to avoid charging the sliding headliner.

The DE 197 16 389 C2 discloses a solar cover for a vehicle roof. The DE 17 10 406 U describes a vehicle roof which has a metal mesh to protect the vehicle against burglary. The DE 33 23 396 C2 discloses a sliding roof for motor vehicles with a sliding headliner comprising a metal foil.

It is an object of the present invention to provide a vehicle roof with a cover and a sliding headliner, in which damage or impairments that can occur during operation due to an electrostatic charge of the sliding headliner can be avoided.

This object is achieved by a vehicle roof, as defined in claim 1.

In the solution according to claim 1 is advantageous in that the fact that the holding arrangement comprises a planar, electrically conductive connecting element, which is arranged in the region of the solar generator to provide electrical shielding of the solar generator, by a simple constructive measure a discharge of the sliding headliner without damaging electrical components in the area of the solar generator.

Further preferred embodiments of the invention will become apparent from the dependent claims.

The fabric of the sliding headliner can be provided with a metallic fabric and thus easily allow a controlled discharge of the sliding headliner, for example by the metallic fabric is electrically connected to a body-mounted frame, which serves as a guide for the cover and the sliding headliner. On such an electrically conductive connection, however, if necessary, can be omitted if the cover is provided on its lower side with a frame-like metallic support structure, for example, a so-called cover inner panel, in which case compensates for the electrically induced charge of the sliding headliner through the metallic surface of the inner cover plate becomes.

The sliding sky may alternatively be provided with a metal foil, which in a simple way a controlled discharge of the sliding headliner is made possible, for example by the metal foil is electrically connected via sliding contacts with the vehicle body. Again, if necessary, can be dispensed with such an electrically conductive connection, for example, if the lid is provided on its underside with a sufficiently large inner cover sheet, which provides for a compensation of the electrically induced charge on the sliding headliner.

In the following the invention will be described by way of example with reference to the accompanying drawings. Showing:

1 a schematic longitudinal sectional view of a vehicle roof according to the invention;

2 an enlarged view of a lid, which in the vehicle roof of 1 can be used;

3 a perspective view of the inner cover plate of the lid of 2 showing only the lateral edge area; and

4 an enlarged view of an embodiment of a sliding sky.

In 1 a vehicle roof is shown, which has a roof opening 12 in a solid roof area 10 that has a lid 14 can be closed, which may be the cover of a sliding roof, sliding roof or spoiler roof (outside-guided sunroof), the lid 14 then slidable and / or is exposed to expose the roof opening optionally at least in part. Basically, the lid 14 However, also be formed as firmly connected to the body lid. The lid 14 is transparent at least in some areas.

Below the lid 14 is a sliding sky 16 provided, which is displaceable in the roof longitudinal direction (see arrows) to the lid 14 or the roof opening 12 with respect to the vehicle interior 18 to cover or optionally at least partially expose, reducing the sunlight in the vehicle interior 18 can be adjusted according to the wishes of the vehicle occupants.

Furthermore, a schematically indicated roof frame 20 made of metal, which is attached to the vehicle body and as a guide or attachment for the lid 14 and the shift sky 16 serves.

In 2 is an embodiment of the lid 14 shown in which the lid 14 from a glass or plastic plate 22 is formed on the underside of a frame-like metallic holding arrangement by means of a foam 26 is appropriate. Such a holding arrangement is commonly referred to as cover inner panel. The inner cover plate 24 serves the lid 14 mechanically with one in the roof frame 20 mounted adjustment mechanism (not shown) to connect.

Further, the plate is 22 at its bottom with a solar generator 28 provided, which consists of a plurality of solar cells.

In 3 is the inner lid 24 shown in more detail, the plate 22 and the foam 26 are omitted. The inner cover plate 24 is with a flat metallic bridge 30 provided, which extends across the inner cover plate from an edge region of the inner cover plate 24 to the opposite edge area via the solar generator 28 extends.

The function of the bridge 30 is for an electrically conductive connection between the two opposite edge regions of the inner cover plate 24 to ensure in this way for an electrical shielding of the solar generator 28 to care. The inner cover plate 24 is in turn on the adjustment mechanism electrically conductive with the roof frame 20 and thus connected to the vehicle body. In this way, during a discharge of the through the operation of the sliding headliner 16 charged sliding sky 16 over the lid 14 Damage to the solar generator and nearby electrical elements are prevented.

The metallic bridge 30 may be configured to provide a DC / DC converter of the solar generator 28 wearing.

Instead of being designed as a glass or plastic lid as described, the lid can 14 be designed as a sheet metal lid.

As an additional or alternative measure for the protection against electrical discharges of the sliding headliner 16 according to 4 be formed so that the sliding sky at its top with a metal foil 32 that is beyond the guidance of the sliding headliner 16 in electrically conductive connection with the roof frame 20 and thus can stand with the vehicle body. Such a connection can for example via sliding contacts to the roof frame 20 getting produced. An electrically conductive connection with the vehicle body is unnecessary if the cover inner panel 24 has a sufficiently large metallic surface to those on the sliding sky 16 or the metal foil 32 to compensate for electrically induced charge.

Alternatively or additionally, the Schiebehimmelstoff 34 standing at the bottom of the sliding sky 16 is arranged to be provided with a metallic fabric. Also in this case can be a compensation of the electrically induced charge on the sliding headliner 16 optionally by a sufficiently large metallic surface of the inner cover sheet 24 be achieved. If necessary, however, can also be an electrically conductive connection, for example via the leadership of the sliding headliner 16 in the roof frame 20 to the roof frame 20 and thus be made to the vehicle body.

The design of the sliding headliner 16 according to 4 , ie with a metal foil or a metallic fabric, is particularly advantageous if the lid 14 is designed as a glass cover without solar generator to prevent contamination or darkening of the Schiebehimmelstoffs by the attraction of dust particles through the sliding sky.

LIST OF REFERENCE NUMBERS

10

Fixed roof surface

12

roof opening

14

cover

16

sliding sky

18

Vehicle interior

20

roof frame

22

plate

24

Inside cover sheet

26

foam casing

28

solar generator

30

bridge

32

metal foil

34

Sliding headliner fabric

Claims (12)

Vehicle roof, with a roof opening ( 12 ) covered by a lid ( 14 ) is closable, and a sliding sky ( 16 ) which is displaceable in the roof longitudinal direction to the cover or the roof opening with respect to the vehicle interior ( 18 ) or at least partially expose the lid, a solar generator ( 28 ) and an electrically conductive holding arrangement, which is in electrically conductive connection with the vehicle body, characterized in that the holding arrangement comprises a planar, electrically conductive connecting element, which in the region of the solar generator ( 28 ) is arranged to provide electrical shielding of the solar generator. Vehicle roof according to claim 1, characterized in that the holding arrangement is formed like a frame. Vehicle roof according to claim 2, characterized in that the holding arrangement of an inner cover plate ( 24 ) is formed. Vehicle roof according to claim 2 or 3, characterized in that the connecting element as a metallic bridge ( 30 ) is formed, which extends across the support assembly via the solar generator ( 28 ). Vehicle roof according to claim 4, characterized in that the bridge ( 30 ) a DC / DC converter of the solar generator ( 28 ) wearing. Vehicle roof according to one of the preceding claims, characterized in that the cover ( 14 ) is made of glass or sheet metal. Vehicle roof according to one of the preceding claims, characterized in that the cover ( 14 ) is displaceable and / or deployable to the roof opening ( 12 ) optionally at least partially expose. Vehicle roof according to one of the preceding claims, characterized in that the substance ( 34 ) of the sliding headliner ( 16 ) is provided with a metallic fabric. Vehicle roof according to one of claims 1 to 7, characterized in that the sliding sky ( 16 ) with a metal foil ( 32 ) is provided. Vehicle roof according to claim 8, characterized in that the metallic fabric is electrically conductive with a body-mounted roof frame ( 20 ), which serves as a guide for the lid ( 14 ) and the sliding sky ( 16 ) serves. Vehicle roof according to claim 9, characterized in that the metal foil ( 32 ) is electrically connected to the vehicle body. Vehicle roof according to claim 11, characterized in that the metal foil ( 32 ) by means of sliding contacts with a roof frame electrically connected to the vehicle body ( 20 ) is electrically connected.

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