WO2014177334A1

WO2014177334A1 - Roller blind assembly for a vehicle

Info

Publication number: WO2014177334A1
Application number: PCT/EP2014/056460
Authority: WO
Inventors: Erhard Veit; Andreas Rockelmann; Jan Hammer
Original assignee: Webasto SE
Priority date: 2013-04-29
Filing date: 2014-03-31
Publication date: 2014-11-06
Also published as: DE102013104341A1; DE102013104341B4

Abstract

A roller blind assembly for a vehicle (120) has a roller blind web (101), which can be wound or unwound in a longitudinal direction (L), and at least one electronic lighting means (102). The lighting means (102) is coupled to the roller blind web (101), and at least two electrically conductive threads (103, 104) provided in the roller blind web (101) are electrically coupled to the lighting means (102) in order to supply the lighting means (102) with electrical energy.

Description

description

Roller blind arrangement for a vehicle The invention relates to a roller blind arrangement for a vehicle with a longitudinal or unwound in a longitudinal direction

Roller blind, which has an electronic illuminant.

Roller blind arrangements or sliding roof liners serve, for example, for shading in vehicles, in particular if the vehicles are equipped with an at least partially transparent roof and / or a sunroof. In this case, for example, light-conducting fibers or electroluminescent foils can be arranged in the roller blind in order to enable illumination of the vehicle interior.

In particular, in blind arrangements there is a risk with fiber-optic fibers that the fibers break when the fibers break

Roller blind is rolled up and down. In addition, the light from an external light source in the photoconductive fiber must be ^¬ coupled, with losses may occur.

It is desirable to provide a roller blind arrangement for a vehicle which has a lighting means and which enables reliable operation.

According to one embodiment of the invention, a roller blind arrangement for a vehicle has a roller blind web which can be wound up or unwound in a longitudinal direction and at least one electronic illuminant. The luminous means is coupled ge ^¬ on the roller blind. In particular, the lighting means is coupled directly to the blind sheet, so that the light source with the

Roller blind is in direct contact. In particular, touched the lamp the roller blind. In the roller blind Minim ^¬ least two electrically conductive threads are provided, which are electrically coupled to the lamp for supplying the lighting means with electric energy.

The electrically conductive threads each have a cross section which is very small in relation to the longitudinal extent of the threads. For example, the threads have a diameter between 0.01 mm and 1 mm, for example 0.5 mm, 0.2 mm or 0.1 mm. The electrically conductive threads are particularly flexible so that it weaves ^¬ inserted in the roller blind, can be knitted, woven and / or acted upon. For example, the threads each have a modulus of elasticity of less than 50 GPa. According to embodiments, the threads each comprise a plastic and an electrically conductive material. The plastic is thereby vorran ^¬ was the mechanical properties of the yarn before and the electrically conductive material is predominantly the electrical properties of the yarn before. According to embodiments, the threads each have a textile thread and a

electrically conductive material. The electrically conductive threads are, for example, textile structures made of monofilaments which have electrochemically deposited metal layers. The electrically conductive threads are, for example, metallized, electrically non-conductive yarn filaments. The electrically conductive threads are example ^¬ galvanically silver-plated threads. For example, a thread is electrochemically coated with an electrically conductive material.

According to embodiments of the roller blind arrangement, the threads are each woven into the roller blind. According to further execution ^¬ form the threads are embroidered in each case the blind sheet. According to further embodiments, the threads are knitted in each case in the blind sheet. According to further embodiments, the threads are braided in each case in the blind sheet. According to further embodiments, the threads are acted upon in the roller blind. The threads are incorporated according to further embodiments by means of a combination of said processing forms in the roller blind. In particular, the threads are ^¬ tegraler part of the blind and are incorporated during the manufacturing process of the blind in the roller blind.

By using the electrically conductive threads, it is possible to specify the position of the light source on the roller blind flexible. It is possible to arrange the lamp at each or at almost any position on the roller blind and to couple by means of electrically conductive threads with an electrical power supply. This makes it possible, for additional optical fibers, and in particular rela ^¬ tively rigid light guide made of glass and / or plexiglass to ziehten comparable. Thus, the roller blind can be rolled up with a comparatively small radius. At the same time the operation of the luminous means is also for a comparatively long life ^¬ period reliably possible, since the electrically conductive filaments are flexible enough to remain electrically conductive even at a small roll-up radius of the blind web reliably to the lighting means with electric power to ver ^¬ worry. For example, the electrical threads are coupled in operation at the end facing away from the light source to an electrical system of the vehicle.

According to embodiments, the light source to a light ^¬ emitting diode (LED). For example, this indicates

Bulb on an organic LED. For example, points the bulb on an inorganic LED. The light source is thus up or unwound with the roller blind and flexibly positionable. The luminous means can also be of a further type, which allows unwinding and unwinding and / or flexible positioning.

According to further embodiments, a plurality of

Provided bulbs. The bulbs of the plurality of bulbs are arranged distributed over an area of the roller blind. In particular, the lighting means of the plurality of lighting means each have a spacing from one another. Thus, it is possible to illuminate a large area.

In particular, at least two sub-groups of the plurality of lighting means can be supplied with electrical energy independently of each other. According to further embodiments, more than two subgroups can be supplied with electrical energy independently of each other. For example, each Leuchtmit ^¬ tel of the plurality of lamps is to-independently of the other lamps on and off individually. The sub-groups have in accordance with embodiments each have a single light ^¬ medium. The subgroups each have more than one illuminant according to further embodiments. For example, a subset is the front of the

Vehicle assigned and a subset assigned to the rear of the vehicle when the roller blind assembly is coupled to the vehicle. Thus, it is possible to illuminate the front area of the vehicle independently of the rear area of the vehicle. According to further embodiments, the lighting means of the plurality of lighting means at least partially different color locations of the emitted light. In particular, bulbs are provided which can change their color location during operation. This makes it possible to realize different types of lighting for the vehicle when the shade assembly is coupled to the vehicle.

According to further embodiments, two power lines are coupled to the roller blind. The power lines are aligned in particular in the longitudinal direction of the roller blind. The threads are in each case arranged between the luminous means and one of the current leads in order to electrically couple the luminous means to one of the respective current leads. The power lines are used in particular for common coupling of the threads each with the electrical system of the vehicle. In particular, the current ^¬ lines at opposite edges of the roller blind are arranged reasonable. For example, at least a part of the plurality of lighting means is electrically connected in series. A portion of the plurality of lighting means is at least electrically connected in series Example ^¬ example. According to embodiments, the power lines respectively

Flat band steel springs on. The flat strip steel springs are designed to aufwi ^¬ wrap the roller blind due to their spring force. The power lines are used according to embodiments both for electrical coupling of the electrically conductive Fä- with the electrical system as well as a mechanical energy storage for the winding of the blind.

According to further embodiments, the power lines each have flat band steel strips. The flat strip steel strips are used to guide the roller blind in the guide rails The roller blind is wound up together with the flat steel strips on a roller shaft. Further advantages, features and developments emerge from the following examples explained in conjunction with the figures. The same, identical or equivalent elements can be provided with the same reference numerals. The illustrated elements and their proportions are not to scale.

Show it:

FIG. 1 shows a schematic view of a part of a vehicle according to embodiments,

FIG. 2 shows a schematic representation of a roller blind arrangement according to embodiments,

Figure 3 is a schematic representation of a roller blind assembly according to embodiments, and

Figure 4 is a schematic representation of a cross section through an electrically conductive thread according to embodiments.

1 shows a vehicle 120, for example, a driving force generating ^¬. The vehicle 120 has a vehicle roof 116 provided with a roof opening 118. The roof opening 118 is optionally closed, for example, by means of a sliding sunroof ^¬ lid or at least partially freely ^¬ gebbar. According to further embodiments, the vehicle roof 116 has no roof opening 118. For example, the vehicle roof 116 is at least partially transparent, insbesonde ^¬ re a so-called panoramic roof. On the vehicle roof 116, a roller blind assembly 100 is arranged. On opposite sides of the vehicle roof 116, a guide rail 114 is arranged in each case. In particular, he ^¬ extend the guide rails 114 each in the direction of the longitudinal direction L of the vehicle. The longitudinal direction corresponds according to embodiments of the main direction of travel of the vehicle. In the guide rails 114 a flat extended roller blind 101 is held. The shade is as example ^¬ extended so extensively that the shade 101

Roof opening 118 can completely cover. The roller blind 101 has a surface 106.

The blind sheet 101 can be moved forward in the guide rails 114 along the longitudinal direction L and be moved backwards against the longitudinal direction L. For example, a pulling mirror 117 is arranged in the front region of the roller blind 101 for this purpose. If the roller blind 101 is pushed completely back, the roof opening 118 is completely released. Sunlight and ambient air can then reach the vehicle interior ^unhindered , if, for example, the sunroof is open. If the shade 101 full ^¬ constantly pushed forward, the roof opening 118 is covered by the shade 101 so that direct sun light ^¬ and ambient air can only partially enter the vehicle interior space ^¬. The shifting of the roller blind 101 can be done manually and / or by means of a motor.

FIG. 2 shows a roller blind arrangement 100 according to embodiments. The blind assembly 100 includes the blind sheet 101. The blind sheet 101 is made of a flat extended flexible blind cloth or blind fabric. The roller blind 101 can be rolled up at its rear end. In order to require as little space in the vehicle roof, the roller blind 101 can be wound up with the smallest possible radius. For example, the Roller blind 101 can be wound onto a winding shaft. According to ^further embodiments, a respective flat strip steel spring 112, 113 is arranged on the opposite lateral edges. The flat strip steel springs are each designed such that they wind up the roller blind 101 when the roller blind 101 or the flat band steel springs 112, 113 are not arranged in the guide rails 114. For example, the roller blind 101 can be wound without a winding shaft. Distributed over the surface 106 of the roller blind 101 is a plurality ^¬ number 105 of bulbs 102 arranged. According to further embodiments, fewer lighting means may be arranged than shown, for example a single lighting means 102. According to further embodiments, more lighting means 102 are arranged than shown in FIG.

The bulbs 102 are electrically excitable bulbs. By way of example, the luminous means each comprise one or more light-emitting diodes, in particular organic or inorganic light-emitting diodes. According execution ^¬ form the illumination means consists of one or several jeweil ^¬ ren light-emitting diodes, in particular of organic or inorganic light emitting diodes. According to embodiments, the electronic light sources 102 are each designed to emit radiation in the visible range during operation when they are supplied with electrical energy. For example, the electronic light sources 102 each emit light with a mixture of wavelengths, so that white light is emitted. According to ^further embodiments, the lighting means 102 are each designed to emit light in a colored wavelength range, for example in a reddish or yellow color Wavelength range. According to other embodiments, the lamps 102 are arranged Bezie ^¬ hung as to change the wavelength comparable, the wavelength spectrum of their emitted radiation during operation to a predetermined value.

The electronic lighting means 102 are distributed over the surface 106 of the roller blind, that at least two of the light ^{emitting ¬} 102 have a distance 107 to each other. The distribution of the luminous means 102 over the surface 106 of FIG

Roller blind 101 is flexibly specifiable. For example, the bulbs are arranged in several rows. However, it is also possible to arrange the bulbs based on predetermined shapes or lettering.

The bulbs 102 are directly connected to the flexible

Roller blind 101 coupled. For example, the lamps 102 are respectively adhered to the roller blind web 101 and / or set ^¬ sewn and / or welded and / or soldered. The light sources 102 are coupled to the roller blind 101 in such a way that they can be wound up or unwound with the roller blind 101. The bulbs 102 are coupled to the roller blind 101 such that the roller blind 101 can also be guided transversely to the longitudinal direction L in the guide rails 114. This is the case, for example, when the vehicle roof 116 is curved. The electronic bulbs 102 emit their radiation during operation directly into the environment. In particular, no further optical fibers are provided. The bulbs 102 are coupled to the roller blind 101 so that the distance 107, or the other distances between the

Bulbs 102, at least within predetermined ranges during operation is variable. Thus, it is possible to tension the roller blind 101 transverse to the longitudinal direction L, for example.

The lighting means 102 or for example two sub-groups 108 and 109 each having a plurality of

Illuminants 102 can be operated independently of each other. According to further embodiments, more than two subgroups are provided, for example three subgroups or more. Thus, it is possible for illuminants 102 of the plurality 105 of illuminants to emit different wavelengths and / or radiation of different intensities. For example, it is also possible for the subgroups 108 and 109 to respond in response to different predetermined events. In ^¬ example, the bulbs 102 of the sub-group 109, which are arranged in the rear of the vehicle 120, activated when one of the rear doors of the vehicle is geöff ^¬ net. At the same time, when the front doors are closed, sub-group 108, which is arranged in the front area of vehicle 120, can remain switched off. Accordingly, it is possible lent that if only one of the front doors is opened and activates the rear doors remain closed, only the lighting means 102 of the subset 108 and the lamps 102 of the sub-group 109 off ^¬ lead-ben. It is also possible that the subgroups 108 and 109 respond to events in a different way, for example by changing their emitted wavelength and / or by changing their emitted intensity. For example, the lighting means 102 are each activated so that those Leuchtmittl 102, which are arranged on the wound part of the blind sheet 101, emit no radiation and the bulbs 102, which are arranged on the unwound part of the blind sheet 101, are supplied with electrical energy and radiation into Emit the interior of the vehicle. The electrical contacting of the lighting means 102 is shown schematically in accordance with embodiments in FIG. In the blind sheet electrical threads 103 and 104 are incorporated. For example, the electrical threads are woven into the blind sheet during the Her ^¬ position of the shade 101, embroidered, knitted, woven and / or acted upon.

The electrically conductive threads 103 and 104 are shown schematically in Figure 4 in cross-section transverse to the longitudinal extent according to one embodiment. The electrically conductive threads 103, 104 have, for example, a core of a plastic 110. The plastic core 110 is at least partially or completely surrounded or encased with an electrically conductive material 111. The art ^¬ material 110 includes, for example, a polyamide and / or polyester and / or another flexible and / or elastic plastic, which can be formed as a thread. The electrically conductive material 111 includes, for example, silver and / or conductive carbon blacks. The electrically conductive threads 103, 104 each have an electrical conductivity of less than 5 × 10 ^-5 Siemens / cm, in particular less than 2 × 10 ^-5 Siemens / cm. For example, the electrically conductive threads 103, 104 each have an electrical resistance of less than 100 ohms / meter or less than 40 ohms / meter, for example 20 ohms / meter plus / minus 10 ohms / meter. For example, the threads 103 and 104 each ^¬ weils an elastic modulus of less than 100 GPa, the ^¬ particular less than 80 GPa, especially less than 50 GPa, especially less than 40 GPa, for example less than 30 GPa or smaller than 15 GPa. According to further embodiments, the electrically conductive material 111 is at least partially surrounded by the plastic 110. The electric conductive threads 103, 104 each have a diameter of less than 1 millimeter, for example, less than 0.87 millimeters. The electrically conductive threads 103, 104 each have, for example, a final fineness of less than 500 dtex. The electrically conductive threads 103, 104 each have a maximum tensile force of more than 2.50 N, in particular more than 7.00 N.

A lighting means 102 of the plurality 105 is in each case coupled to an electrically conductive thread 103 and an electrically conductive thread 104. The electrically conductive threads 103 and 104 are each connected to mutual poles of a board ^¬ network 115 of the vehicle 120. According to embodiments, more than one illuminant 102 is electrically connected to an electrically conductive thread 103 or 104, for example two or more electronic ones

Bulbs.

For electrical coupling to the vehicle electrical system 115, the electrically conductive threads 103, for example 104, are coupled to a power line 112. The power line 112 is electrically coupled, for example via a control device 119 with the electrical system 115, in particular the vehicle battery and / or the alternator of the vehicle 120. The threads 104 are coupled, for example, via a further power line 113 to the vehicle electrical system 115. For example, the power line 112 to the positive pole and the power line 113 to the negative pole of the electrical system 115 is electrically coupled. Natuer ^¬ Lich also a contrary coupling with positive and negative pole is possible. According to embodiments, the flat strip steel springs which extend in the longitudinal direction L along the edge of the roller blind 101 perform the function of the power lines 112, 113. According to embodiments, the power lines are 112, 113 each divided into two or more power lines, in particular to the subgroups 108 and 109 independently vonei ^¬ nander to be able to control. The threads 103 and 104 extend in accordance with embodiments in each case transversely to the longitudinal direction L. Thus, a high Flexi ^¬ stability for the positioning of the lamps 102 possible on the surface 106 of the blind sheet the one hundred and first In particular, the electrically conductive threads 103 extend from the power line 102 transversely to the longitudinal direction L over the entire width of the

Roller blind 101, but without the power line 113th

to be electrically coupled. For example, the electrically conductive threads 104 each extend from the power line 113 transversely to the longitudinal direction L over the entire width of the roller blind 101, but without the power line 112

to be electrically coupled. According to further embodiments, the power lines ranging 103 and 104 single ^¬ Lich over a portion of the width of the blind web 101, for example, to the middle of the blind sheet 101 or up to one third of the width of the shade 101. The electrically conductive threads 103 and 104 are each flexible and elas ^¬ table enough that the roller blind 101 can be wound into a com ^¬ pact as possible compact, if it is not guided in the guide rails 114.

The conductive threads 103 and 104 are incorporated according to further embodiments in the longitudinal direction L in the blind sheet 101. Due to the high flexibility, it is possible to wind the aligned in the longitudinal direction L threads 103 and 104 with the blind sheet 101 with a small radius.

The roller blind assembly 100 with the roller blind 101, the

electrically conductive threads 103, 104 and the plurality 105 of electronic bulbs 102 is operable reliably over a long period of operation and has good efficiency. Losses due to the transfer of light, for example into light-conducting fibers, are avoided. The electrically conductive threads 103 and 104 can not break like optical fibers. The roller blind 101 is flexibly shaped, for example, without cross braces, which can conventionally serve as a light guide, for example. In addition, the material for the roller blind 101 is flexibly selectable. The arrangement of the bulbs 102 on the surface 106 of the roller blind 101 is flexibly predetermined. It is easy to use different colored bulbs 102. An activation of the lighting means 102 or of ^sub- groups 108, 109 independently of each other is easy to implement.

Claims

claims

A roller blind arrangement for a vehicle (120) with a roller blind (101) which can be wound or unwound in a longitudinal direction (L) and at least one electronic light source (102), wherein the light source (102) is coupled to the roller blind (101) and in the roller blind (101) at least two electrically conductive threads (103, 104) are provided which are electrically coupled to the lighting means (102) for supplying the illuminant (102) with electrical energy.

2. roller blind assembly according to claim 1, wherein the lighting means (102) comprises an organic or inorganic light-emitting Di ^¬ ode.

3. roller blind arrangement according to claim 1 or 2, wherein a plurality (105) of lighting means (102) is provided, wherein the lighting means (102) of the plurality (105) of lighting means (102) over a surface (106) of the blind sheet (101 ) distributed at a distance (107) are arranged to each other.

4. roller blind assembly according to claim 3, wherein the lighting means (102) of the plurality (105) of lighting means (102) are so electrically coupled to the threads (103, 104) that at least two mutually different sub-groups (108, 109) of the plurality (105) of lighting means (102) are independently supplied with electrical energy.

5. Roller blind arrangement according to one of claims 1 to 4, wherein the threads (103, 104) each extend transversely to the longitudinal direction (L).

6. roller blind arrangement according to one of claims 1 to 5, wherein the threads (103, 104) in each case in the blind sheet (101) is woven ^¬ , embroidered, knitted, woven and / or a ^¬ effect.

7. Roller blind arrangement according to one of claims 1 to 6, wherein the threads (103, 104) each have a modulus of elasticity of dressings ^¬ ner than 50 GPa.

8. Roller blind arrangement according to one of claims 1 to 7, wherein the threads (103, 104) each have a plastic (110) and an electrically conductive material (111).

9. roller blind assembly according to one of claims 1 to 6, comprising at least two power lines (112, 113), with the

Roller blind (101) are coupled and which are aligned in the longitudinal direction (L) of the roller blind, wherein the threads (103, 104) respectively between the lighting means (102) and one of the power lines (112, 113) are arranged to the lighting means (102 ) electrically to each one of the power lines (112, 113) to couple.

10. Roller blind assembly according to claim 9, wherein the power lines (112, 113) are each formed as a flat band steel spring.

11. Roller blind assembly according to claim 9, wherein the power lines (112, 113) are each formed as a flat-band steel bands.