CN116262427A

CN116262427A - Screening arrangement for a window section of a motor vehicle

Info

Publication number: CN116262427A
Application number: CN202211601993.9A
Authority: CN
Inventors: J·勒卡尔; F·塞茨
Original assignee: BOS GmbH and Co KG
Current assignee: BOS GmbH and Co KG
Priority date: 2021-12-14
Filing date: 2022-12-14
Publication date: 2023-06-16
Also published as: DE102021214299A1

Abstract

A screening arrangement for a window section of a motor vehicle. At least one dimensionally stable shielding structure is provided, which is arranged on the carrying carriage and is arranged displaceably relative to a fixed receiving area between a rest position and a shielding position by means of a drive system, wherein the shielding structure is provided with an electrically activatable shielding function layer. According to the invention, the electrically activatable light shielding layer can be coupled to the vehicle-side electrical system via a cable assembly, and a flexibly movable multi-joint mechanism is provided in the receiving area, which is articulated at the at least one carrying carriage and the fixed-position current connection section of the receiving area, wherein the cable assembly is connected to the vehicle-side electrical system, and the cable assembly has a length corresponding to at least one extension length of the multi-joint mechanism, and the cable assembly is connected to the multi-joint mechanism along the longitudinal extension of the multi-joint mechanism, so that the cable assembly is carried along with the movement of the multi-joint mechanism when the multi-joint mechanism moves. It is used for the side door of a car.

Description

Screening arrangement for a window section of a motor vehicle

Technical Field

The invention relates to a screening arrangement for a window section of a motor vehicle, comprising at least one dimensionally stable screening structure which is arranged on a carrier carriage and is arranged displaceably relative to a fixed receiving area between a rest position and a screening position by means of a drive system, wherein the screening structure is provided with an electrically activatable screening function layer, wherein the electrically activatable screening function layer can be coupled to a vehicle-side on-board electrical system via a cable assembly.

Background

A screening arrangement for a side window of a side door of a passenger car is known from DE 10 2006 037 594 A1. The shielding device has a flexible shielding web which is supported on a winding shaft in a reelable and unreeled manner and which is provided with a dimensionally stable pull-out profile (Auszugprofil) at its front end face region in the reeled-out direction. The winding shaft is rotatably supported on the door side below the side window. The shielding web is provided with a drive system with a lifting lever which engages with the pull-out profile in order to transfer the pull-out profile and thus also the shielding web from the rest position into the shielding position covering the side window.

Disclosure of Invention

The object of the present invention is to create a screening arrangement of the type mentioned at the outset which has improved functionality compared to known screening arrangements with simple means.

This object is achieved in that a flexibly movable multi-joint mechanism is provided in the receiving region, which is articulated on the one hand at the at least one carrying carriage and on the other hand in the region of a current connection section of the receiving region, at which connection of the cable assembly to the vehicle-side on-board electrical system is effected, and which has a length corresponding to at least one extension length of the multi-joint mechanism, and which is connected to the multi-joint mechanism along the longitudinal extension of the multi-joint mechanism in such a way that the cable assembly tracks the movement of the multi-joint mechanism when the multi-joint mechanism is moved. According to the invention, the cable assembly is connected to the multi-joint mechanism in such a way that the bending or pivoting movement of the multi-joint mechanism is engaged by the cable assembly without the cable assembly being extended too far or being bent so far that damage to the cable assembly occurs. In other words, the tracking or carrying of the cable assembly with the multi-articulation mechanism ensures that the cable assembly is displaced together in a non-damaging manner when the at least one shielding structure is displaced between the rest position and the shielding position, thereby ensuring a permanent power supply of the shielding functional layer of the shielding structure. According to the invention, at least one dimensionally stable shielding structure is designed as a shielding plate. The shielding plate is preferably designed from a transparent plastic plate or disk. The light-shielding functional layer advantageously extends in a planar manner over the entire transparent surface of the shielding plate. The PDLC film mounted on the surface of the shielding plate is preferably provided as a light shielding functional layer. The electrical activation of the light-shielding functional layer means that the light transmission of the light-shielding functional layer can be changed as a function of the electrical activation, so that the light-shielding functional layer, if appropriate, largely completely or partially shields the window section of the motor vehicle, or at least is designed largely light-transmitting so that no shielding function is provided for the window section. As an alternative to PDLC layers, SPD films, electrochromic layers or layers made up of nanotubes applied to a transparent substrate are designed as light-shielding functional layers, wherein the nanotubes unfold into microscopic surface elements upon electrical activation, whereby an increased darkening of the transparent substrate, in particular of a glass or plastic plate, is obtained. The side window section, rear window section, front window section or roof window section of the motor vehicle can be provided as a window section of the motor vehicle. The articulated mechanism for guiding the cable assembly is composed of a plurality of articulated segments, which can preferably be implemented either by a lever chain or by a gooseneck-shaped link chain. The stationary receiving area forms a receiving space which is secured to the vehicle in the ready-to-assemble state and which is advantageously arranged at the body-in-white of the motor vehicle. The receiving area can be integrated in the body-in-white in the side window section below the side window section. In the roof window section, the receiving area is arranged on the top-side body-in-white section, preferably in front of or behind the roof window section in the direction of travel. In the rear window section or the front window section, the receiving space can be provided at the respectively adjacent body-in-white section above or below the rear window section or the front window section.

In a further embodiment of the invention, a dimensionally stable main shielding structure and a dimensionally stable secondary shielding structure are provided, which are designed in a disk-shaped manner and are at least largely transparent, and which are each provided with a light-shielding functional layer, which can be electrically activated by means of a cable assembly, and the multi-joint movement mechanism is coupled to the carrier carriage of the main shielding structure and to the carrier carriage of the secondary shielding structure. This embodiment is particularly advantageous for shielding a side window section of a side door of a passenger vehicle, wherein the side window section has a main window opening and a triangular window opening. The triangular window opening is closed by a fixed triangular window. The main window opening can be closed or released by a lowerable main window pane. The primary screening arrangement is arranged for screening the primary glazing and the secondary screening arrangement is arranged for screening the triangular glazing. Not only the primary shielding structure but also the secondary shielding structure is designed as a disk-shaped shielding plate. The multi-joint movement mechanism is designed in such a way that a permanent coupling is produced not only with the carrier carriage for the primary screening arrangement but also with the carrier carriage for the secondary screening arrangement. The cable assembly has a cable bundle that supplies the shading function layer of the primary shading structure and another cable bundle for supplying power to the shading function layer of the secondary shading structure and is thus guided to the secondary shading structure by the multi-articulation mechanism.

In a further embodiment of the invention, the carrier slide for the secondary screening arrangement is guided in the receiving region at an acute angle to the carrier slide for the primary screening arrangement. In this case, the secondary shielding structure and the primary shielding structure overlap one another in the rest position in the receiving region. By guiding the carrier carriage for the secondary screening arrangement at an acute angle to the carrier carriage of the primary screening arrangement, the carrier carriage moves away from the guide of the carrier carriage for the primary screening arrangement when travelling from the rest position into the screening position, whereby the primary screening arrangement and the secondary screening arrangement are forcibly fanned out relative to each other when being transferred into the screening position, so that in the screening position the secondary screening arrangement and the primary screening arrangement are positioned alongside each other for screening the triangular window on the one hand and the primary pane on the other hand.

In a further embodiment of the invention, the multi-joint mechanism has a central part which is firmly connected to the carrying carriage of the primary screening arrangement, from which central part the double-lever assembly protrudes towards the carrying carriage of the secondary screening arrangement, and from which central part the other double-lever assembly protrudes in the opposite direction towards the stationary current connection section. This ensures a permanent tracking of the cable assembly during the driving movement of the two carriage carriages. The carrier carriage for the primary screening arrangement is preferably displaced in the vehicle height direction within the receiving region, while the carrier carriage for the secondary screening arrangement is guided at an acute angle to the vehicle height direction, preferably obliquely to the direction of travel of the passenger car, back and upwards. The double lever assemblies are each formed by two lever arms which are connected to one another in an articulated manner.

In a further embodiment of the invention, the primary and secondary screening arrangements can be jointly displaced between the idle position and the screening position by means of the drive system. A synchronized displacement of the two shielding structures from the rest position towards the shielding position and vice versa from the shielding position into the rest position is thereby achieved.

In a further embodiment of the invention, the drive system has an electric drive unit and an electric cable traction system coupled to the drive unit and to the carrying carriages for the primary and secondary screening arrangements in order to transmit the drive force of the electric drive unit to the displacement of the carrying carriages. The rope traction system is lightweight and enables a low noise transmission of the driving force from the electric drive unit to the load-bearing carriage. The rope traction system has at least one wire or plastic rope strand as well as rope pulleys and diverting pulleys and is implemented in such a way that a synchronous displacement of the two carrying carriages is ensured.

In a further embodiment of the invention, the primary and secondary screening arrangements are also arranged in a double-shell module housing forming the receiving area, together with the carrying carriage and the drive system and the multi-joint movement mechanism and the cable assembly. The double-shell module housing is preferably formed by two plastic layers, at which the hinge section, the fastening section and the guide section are provided in order to be able to hold or receive the corresponding functional components of the screening arrangement. This embodiment allows maximum preassembling of the screening arrangement, so that a simple installation in the side door region of the passenger car is possible.

In a further embodiment of the invention, the module housing is integrated into the door body-in-white part in the assembled state. Advantageously, the housing shell of the module housing forms a sealed intermediate wall in the door-body-in-white component in order to separate the wet space in which the main pane is guided in the region of the vehicle side door from the dry space formed by the receiving region of the module housing.

In a further embodiment of the invention, the module housing has an electrical plug connector for detachable connection to a vehicle-side on-board electrical system. As a result, a simple electrical connection to the vehicle-side on-board electrical system is ensured after the corresponding preassembly of the screening device into the module housing and the integration of the module housing into the door-in-white body part.

Drawings

Further advantages and features of the invention emerge from the claims and from the following description of a preferred embodiment of the invention, which is illustrated in accordance with the accompanying drawings. Wherein:

fig. 1 shows a rear side door for a passenger car, which rear side door is provided with an embodiment of a screening arrangement according to the invention;

fig. 2 shows the screening arrangement according to fig. 1 in an enlarged view;

fig. 3a shows the screening arrangement according to fig. 2 in a perspective exploded view;

fig. 3b shows an exploded view according to fig. 3a from another perspective;

fig. 4 shows the screening arrangement according to fig. 1 to 3b with the module housing omitted;

FIG. 5 shows a multi-articulation mechanism for a cable assembly of the shade device according to FIG. 4 having a carriage for a secondary shade structure; and is also provided with

Fig. 6 shows the multi-joint movement mechanism according to 5 with the carrier carriage for the secondary screening arrangement omitted.

Detailed Description

The passenger car is provided with two side doors in the rear region, wherein fig. 1 shows the left side door 1 viewed in the direction of travel of the passenger car. The opposite right-hand side door is embodied identically mirror-symmetrically, so that the same applies to the opposite side door in the same manner as is the case for the side door 1 according to fig. 1.

The side door 1 has a door body-in-white part with an unidentifiable door skin and a door interior. In the region of the door skin, a cutout is provided in the door body-in-white part of the side door 1, in which cutout a module housing 4 is integrated, which forms a screening device for the main side window 2 and the triangular window 3 embodied as a secondary side window. The screening arrangement is shown in more detail in accordance with fig. 2 to 6.

The module housing 4 is designed as a double-shell plastic structure and is provided with an inner housing shell 4a, which is visible in fig. 1 and 2, and with an outer housing shell 4b, which is identifiable in fig. 3a and 3 b. The outer shell 4b is inserted into a cutout of the door skin of the door body-in-white part and is firmly and tightly connected to the surrounding edge region of the cutout of the door skin. Not only the outer shell layer 4b but also the inner shell layer 4a is also embodied as a thermoplastic component.

The inner housing shell 4a is placed over the inner side of the outer housing shell 4b, which with its outer side faces the rear region and thus the vehicle interior. The inner housing shell 4a is firmly connected on the edge side to the edge region of the outer housing shell 4b. In the assembled state, the inner housing shell 4a and the outer housing shell 4b form an interior space which is a receiving area in the sense of the invention. In this receiving area, two shielding structures are arranged, namely a primary shielding structure 5 which is dimensionally stable on the one hand and a secondary shielding structure 6 which is likewise dimensionally stable on the other hand. Both the main screening arrangement 5 and the auxiliary screening arrangement 6 are also designed as dimensionally stable, transparent plastic plates, wherein the main screening arrangement 5 is dimensioned such that it covers the main pane 2 of the side door 1 in the screening position. The secondary screening arrangement 6 is shaped such that it covers the rear triangular window 3 of the side door 1 in the screening position. Not only the primary shielding structure 5 but also the secondary shielding structure 6 are each provided with a light-shielding functional layer, which in the embodiment shown is implemented as a PDLC film. The corresponding PDLC film extends entirely over the surface of the primary shielding structure 5 or over the surface of the secondary shielding structure 6. Here, the PDLC film for the main shielding structure 5 is connected in a planar manner to the surface of the main shielding structure 5, and the PDLC film for the sub shielding structure 6 is connected in a planar manner to the surface of the sub shielding structure 6. The PDLC film enables a change in the light transmission of the primary and

secondary shielding structures

5, 6, wherein upon electrically activating the PDLC film a corresponding shielding of the primary and

secondary shielding structures

5, 6 is achieved.

The main screening arrangement 5 is held in the assembled state on a carrying carriage 10 positioned below the main screening arrangement 5. The carrying carriage 10 is supported on the inner side of the outer housing shell 4b in a linearly movable manner in the vehicle height direction on a linear guide 11 (fig. 3 b).

The secondary shielding structure 6 is carried by a carrying carriage 9 which is likewise connected to the secondary shielding structure 6 in the lower region of the secondary shielding structure 6. The carrier carriage 9 is mounted in a linearly movable manner in a further linear guide 12. The further linear guide 12 is likewise formed on the inner side of the outer housing shell 4b and is located behind the linear guide 11 as seen in the direction of travel of the passenger car and extends obliquely from the lower region of the outer housing shell 4b back and up to the upper edge region of the outer housing shell 4b.

For displacing the two

carriage carriages

9 and 10 along the two linear guides 11 and 12, an electrical drive unit, which is identifiable in fig. 3b but is not shown, is provided and is coupled to the two

carriage carriages

9, 10 via a likewise not shown rope traction system.

As can be seen from fig. 3a, the outer housing shell 4b furthermore has an outer linear guide running parallel to the inner linear guide 11 for a guide slide 7 which is coupled to the main pane for the main side window 2. The guide slide 7 and the main pane can also be moved in the wet area (wet space) of the side door 1. The guide carriage 7 is coupled with a drive system for the screening arrangement via coupling means, not described in detail, to ensure that the primary screening arrangement 5 and the secondary screening arrangement 6 do not remain in their screening positions when the primary pane is lowered. Thus, when the main pane is lowered, the main screening arrangement 5 and the auxiliary screening arrangement 6 are also moved into the receiving region of the module housing 4 into its idle position. The guide carriage 7 can also be moved in the vehicle height direction by means of a rope pulling assembly which is coupled to the drive system of the screening arrangement via a coupling device.

The main screening arrangement 5 is fastened at the centre piece 13 of the multi-articulation mechanism 8, which can be well recognized from fig. 3a and 4 to 6. The articulated mechanism 8 is furthermore coupled to a carrying carriage 9 of the secondary screening arrangement 6, as is implemented in more detail below. The multi-joint movement mechanism 8 is preassembled with the primary shielding structure 5 and the secondary shielding structure 6 in the interior of the inner housing shell 4a, as can be seen in fig. 3 a. With the inner housing shell 4a and the outer housing shell 4b assembled, the central part 13 of the main screening arrangement 5 is then connected to the carrying carriage 10. In the case of the assembled housing shells 4a and 4b, a corresponding final assembly can be achieved by means of an assembly opening in the inner housing shell 4a, which can be recognized from fig. 2 and 3a, 3 b. The carrier slide 9 for the secondary screening arrangement 6 has a web guide which, when the two inner housing shells 4a and 4b are assembled, is forcibly inserted into the guide channel of the linear guide 12, as a result of which the desired linear movability of the carrier slide 9 is achieved.

The multi-joint movement mechanism 8, starting from the central part 13, has in each case a double-lever arrangement which extends laterally outwards starting from opposite sides of the lower section of the central part 13. The double lever assembly, which projects forward in the direction of travel, has a lever arm 15 and a lever arm 16 which are connected to one another in an articulated manner. The lever arm 16 is mounted in a rotationally fixed manner about the hinge point 17 on the inner housing shell 4 a. The lever arm 15 is coupled to the lever arm 16 via a hinge point, not shown in detail, and is furthermore connected in an articulated manner via a hinge point 14 to a projection in the lower region of the central part 13. On the opposite side, a double lever assembly is provided with a first lever arm 19 and a second lever arm 20 rotatably coupled to each other via a hinge point 21. Lever arms 19 are arranged rotatably movable via hinge points 18 at opposite projections of the central part 13. The lever arm 20 is in turn permanently coupled to the carrying carriage 9 via a hinge point 22.

The multi-articulation mechanism 8 is used to permanently carry and track

cable assemblies

23, 24, wherein a first cable bundle 23 is used to power the PDLC film of the primary shielding structure 5 and a second cable bundle 24 is used to power the PDLC film of the secondary shielding structure 6.

As can be seen from fig. 4 to 6, the cable bundles 23 and 24 open on the one hand at the primary shielding structure 5 and the secondary shielding structure 6 into joints of the PDLC film, which are not shown in detail. On the other hand, the

cable assemblies

23, 24 open into the stationary current terminal section S shown in fig. 3 a. The current connection section S is arranged on the inner side of the inner housing shell 4a in the immediate vicinity of the stationary hinge point 17. In the installed operating position, the current connection section S is advantageously connected to the vehicle-side on-board electrical system via a suitable electrical plug connection.

As can be seen from fig. 5 and 6, the multi-joint movement 8 has a plurality of fastening elements F in the region of the central part 13 and in the region of the two double-lever assemblies in each case, in order to achieve a detachable fastening of the respective cable sections of the

cable assemblies

23, 24 of the cable bundles 23, 24. The

cable assemblies

23, 24 are designed in terms of their length such that they can withstand the pivoting movement of the

respective lever arms

15, 16, 19, 20 of the multi-joint mechanism 8 without being excessively stretched, compressed or bent. Thus, damage to the

cable assemblies

23, 24 is precluded. The design and arrangement of the fastening element F relative to the

lever arms

15, 16, 19, 20 and the central part 13 can be well recognized from fig. 5 and 6.

Claims

1. A screening arrangement for a window section of a motor vehicle, having at least one dimensionally stable screening arrangement (5, 6) which is arranged at a carrier carriage (9, 10) and is arranged displaceably with respect to a fixed receiving area between a rest position and a screening position by means of a drive system, wherein the screening arrangement is provided with an electrically activatable screening function layer, wherein the electrically activatable screening function layer can be coupled to a vehicle-side on-board electrical system via a cable assembly (23, 24), characterized in that a flexible, articulated mechanism (8) is provided in the receiving area, which is articulated on the one hand at the at least one carrier carriage (9, 10) and on the other hand is fixedly articulated in the area of a current joint section (S) of the receiving area, at which the cable assembly (23, 24) is coupled to the vehicle-side on-board electrical system, wherein the cable assembly (23, 24) has a length corresponding to at least one length of the articulated mechanism (8), and wherein the articulated mechanism (23, 24) is articulated with the articulated mechanism (8) in such a way that the articulated mechanism (8) is articulated along the longitudinal direction.

2. Shielding device according to claim 1, characterized in that a dimensionally stable primary shielding structure (5) and a dimensionally stable secondary shielding structure (6) are provided, which are disk-shaped and are at least largely transparent, both the primary shielding structure (5) and the secondary shielding structure (6) being provided with a respective light-shielding functional layer, which can be electrically activated by means of the cable assembly (23, 24), respectively, and the articulation mechanism (8) being coupled both with the carrier slide (10) of the primary shielding structure (5) and with the carrier slide (9) of the secondary shielding structure (6).

3. A screening arrangement according to claim 2, characterized in that the carrier carriage (9) for the secondary screening arrangement (6) is guided in the receiving area at an acute angle to the carrier carriage (10) for the primary screening arrangement (5).

4. A screening arrangement according to claim 3, characterized in that the multi-joint movement mechanism (8) has a central piece (13) firmly connected to the carrying carriage (10) of the main screening arrangement (5), from which central piece the double lever assembly protrudes towards the carrying carriage (9) of the secondary screening arrangement and from which central piece the other double lever assembly protrudes in the opposite direction towards the fixed current connection section.

5. A screening arrangement according to any one of claims 2-4, characterized in that the primary screening structure (5) and the secondary screening structure (6) are displaceable together between the rest position and the screening position by means of the drive system.

6. A screening arrangement according to claim 5, characterized in that the drive system has an electric drive unit and a rope traction system coupled with the drive unit and with the carrier carriages (9, 10) for the primary and secondary screening arrangements (5, 6) in order to transmit the drive force of the electric drive unit to the displacement of the carrier carriages (9, 10).

7. A screening arrangement according to any one of claims 2-6, characterized in that the primary screening arrangement (5) and the secondary screening arrangement (6) together with the carrying carriages (9, 10) and the drive system and the multi-articulation mechanism (8) and the cable assemblies (23, 24) are also arranged in a double-shell module housing (4) constituting the receiving area.

8. A screening arrangement according to claim 7, characterized in that the module housing (4) is integrated into a door-body-in-white piece in an assembled state.

9. A screening arrangement according to claim 7 or 8, characterized in that the module housing (4) has an electrical plug connection for detachable connection to the vehicle-side on-board electrical system.

10. A screening arrangement according to any one of the preceding claims, wherein the multi-joint movement mechanism (8) has a fixing element (F) for fastening the cable assembly (23, 24) sectionally.