EP3036117A1

EP3036117A1 - Wind deflector for a vehicle

Info

Publication number: EP3036117A1
Application number: EP14743998.8A
Authority: EP
Inventors: Uwe Escher; Jürgen Luka; Martin Maihöfer; Volker Schwarz
Original assignee: Daimler AG
Current assignee: Mercedes Benz Group AG
Priority date: 2013-08-03
Filing date: 2014-07-26
Publication date: 2016-06-29
Also published as: DE102013012969A1; US9630480B2; US20160185198A1; WO2015018502A1

Abstract

The invention relates to a wind deflector for a vehicle, with at least one housing element (26), with at least one deflector element (28) at least partially accommodated in the housing element (26), with at least one actuator (32), by means of which the deflector element (38) is movable in an oscillating manner linearly relative to the housing element (26) in at least one direction in space, and with at least one sealing element by means of which the deflector element (28) is sealed off at least in a partial region from the housing element (26), wherein the sealing element is designed as a flexible membrane (90) which is arranged on one side on the housing element (26) and on the other side on the deflector element (28) so as to be movable together therewith.

Description

Wind deflector for a vehicle

The invention relates to a wind deflector for a vehicle according to the preamble of patent claim 1.

From serial production vehicles are known, which has a fixed vehicle roof with at least one apparent roof element. The apparent roof element is usually referred to as a cover and is displaceable between a closing position closing a roof opening and at least one open position releasing the roof opening at least partially. Here, the lid is assigned, for example, a sliding and / or lifting roof, the lid in

Vehicle longitudinal direction can be moved and / or moved in the vehicle vertical direction.

When driving, the released roof opening is overflowed by air. It has been shown that - if no appropriate countermeasures are taken - can cause an unpleasant for the vehicle occupants noise in the interior of the vehicle. The rumbling is caused by periodic instabilities and

Pressure fluctuations in the roof opening overflowing shear layer, which leads to a periodic pressure equalization in the interior. Such rumbling can affect the ride comfort when the roof element is open.

DE 197 50 218 C2 discloses a method for suppressing periodic

Pressure changes in a flowed around by an outside flow and provided with an opening cavity, such as an interior of a vehicle. In this case, it is provided that a change in the flow direction of the outer flow directed counter to the current pressure change in the interior of the cavity is effected periodically and in the correct phase. The change in the flow direction can be carried out directly, for example by deflecting vanes, or indirectly, for example, by induced in the vicinity of the opening leading edge cross flow. DE 10 2008 036 887 A1 discloses a wind deflector for a vehicle as known. The wind deflector comprises at least one housing element and at least one deflector element, which at least partially in the housing element

is included. Furthermore, the wind deflector comprises at least one actuator, by means of which the deflector element in at least one spatial direction relative to the

Housing element is linearly oscillating movable. In addition, at least one sealing element is provided, by means of which the deflector element is sealed at least in a partial region against the housing element.

Object of the present invention is to provide a wind deflector for a vehicle, by means of which when released roof opening wummer noises in

Interior of the vehicle can be kept very low.

This object is achieved by a wind deflector for a vehicle having the features of patent claim 1. Advantageous embodiments with expedient and non-trivial developments of the invention are specified in the remaining claims.

In order to provide a wind deflector for a vehicle, in particular a motor vehicle, by means of which wummer noises in the interior of the vehicle can be kept particularly low, it is inventively provided that the

Seal element is designed as a flexible membrane, which on the one hand on

Housing element and on the other hand on Abweiserelement and mitbewegbar is arranged with this. This means that the flexible membrane moves with the oscillating movement of the deflector element. By means of the membrane, the

Abweiserelement be particularly well sealed against the housing element, so that unfavorable air currents can be avoided or at least kept low. This makes it possible to specifically influence the air flow through the oscillating movement of the deflector element and to be able to induce disturbances in the air flow. This can be excessive, unpleasant thumping, which results from a periodic pressure compensation in the interior, can be avoided.

In particular, it is possible to reduce the noise level in the interior

Speed range from 30 kilometers per hour to 80 kilometers per hour, significantly reduce flow noise at higher speeds and interior effects with open sunroofs. Since acoustic resonances in the passenger compartment opened when the sliding roof is open can be reduced by means of the wind deflector according to the invention, very large-area openings can be opened Roof openings are realized without it comes in releasing these roof openings to an undesirable impairment of ride comfort.

In a particularly advantageous embodiment of the invention, the deflector element is mounted on the flexible element on the housing element. As a result, the space requirement, the number of parts and the weight of the wind deflector can be kept low because the flexible membrane fulfills a dual function. On the one hand, the flexible membrane serves to seal the deflector element against the housing element. On the other hand, the flexible membrane is used to support the deflector element, which is held by the membrane on the housing element relative to this movable.

Another embodiment is characterized in that the intrinsically stiff

Housing element is formed of a first plastic. The flexible membrane is formed from a different from the first plastic, second plastic and molded onto the housing member. The wind deflector is in this case at least partially formed as a two-component plastic component, wherein the housing is a first plastic component and the flexible membrane is a second plastic component of the two-component plastic component. As a result, a simple and inexpensive production can be realized. Furthermore, this allows the housing element and the flexible membrane to be adapted to their respective tasks. On the one hand, the housing element can be made stiff and stable, on the other hand, the flexible membrane can be particularly soft or flexible, that is, for example, formed slippery or form-labile. Thus, the flexible membrane can ensure an advantageous seal and at the same time move with the deflector element.

It has proven to be particularly advantageous if at least one cover element formed from a first plastic is provided, on which the flexible membrane formed from a second plastic different from the first plastic is injection-molded. The housing element is at least partially through the on

Housing element arranged cover covered. In other words, a component is provided which comprises the cover element and the flexible membrane and can be manufactured independently of the housing element and attached to the housing element as a manufactured component. As a result, a timely and cost-effective production and a simple installation of the wind deflector can be realized. To realize a particularly strong connection can be provided that the cover is connected by friction welding with the preferably also formed of a plastic housing element.

In a further advantageous embodiment of the invention, it is provided that the flexible membrane and the deflector element are positively connected to each other. As a result, a solid and easy to produce connection can be realized.

A further embodiment is characterized in that at least one sealing lip for sealing the housing element against a structure of the vehicle is provided on the housing element. The structure is, for example, the shell or the body of the vehicle. By this seal unfavorable, unwanted air currents can be avoided.

To realize a particularly good sealing effect, the lip is preferably formed from a plastic and in the context of an injection molding process to the

Enclosed housing element.

In order to be able to deflect or influence the air inflowing the deflector element particularly when the vehicle is moving forwards, in a further embodiment of the invention, the deflector element comprises a main body and at least one deflector lip formed separately from the main body and connected to the main body, wherein the deflector lip is arranged in the vehicle vertical direction above the base body. In this way, for example, a particularly strong and easy to produce connection of the flexible membrane with the deflector element can be made such that the flexible membrane between the main body and the plugged onto the base Abweiserlippe is clamped.

In a further advantageous embodiment of the invention, the deflector lip is positively connected to the base body and / or non-positively connected. As a result, a particularly firm grip is ensured, so that the deflector lip does not come off the base body even at high vehicle speeds.

Finally, it has proven to be particularly advantageous if the flexible membrane is formed integrally with the deflector lip. As a result, the number of parts can be kept very low. In addition, a particularly simple production of the Wind deflector feasible because the connection of the flexible membrane with the

Abweiserelement or with the main body with the compound of Abweiserlippe associated with the body.

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings; these show in:

Fig. 1 is a schematic longitudinal sectional view through a wind deflector according to a first embodiment for a vehicle in the form of a passenger car, the wind deflector a housing element, a at least partially received in the housing element Abweiserelement, at least one actuator for moving the Abweiserelements relative to the housing element and a sealing element comprises, which is designed as a flexible membrane, which is arranged on the one hand on the housing element and on the other hand on the deflector with this mitbewegbar;

Figure 2a is a schematic representation of a feedforward control for controlling the wind deflector.

FIG. 2b is a schematic representation of a feedbackward control for controlling the wind deflector; FIG.

Fig. 3 is a schematic representation of a control device for controlling the

wind deflector;

4a is a schematic front view of the actuator, which as

electrodynamic actuator is formed;

4b is a schematic side view of the actuator;

4c is a schematic plan view of the actuator; Fig. 5 is a schematic front view of the wind deflector according to a second embodiment;

6 shows a schematic sectional view through the wind deflector according to the second embodiment along a section line A-A shown in FIG. 5; FIG.

7 shows a schematic sectional view through the wind deflector according to the second embodiment according to a section line B-B shown in FIG. 5; FIG.

Fig. 8 is a schematic enlarged view of a in Fig. 7 with Y.

designated area of the wind deflector according to the second embodiment;

9 is a schematic front view of the wind deflector according to a third embodiment;

10 shows a schematic sectional view through the wind deflector according to the third embodiment along a section line A-A shown in FIG. 9;

11 shows a schematic sectional view through the wind deflector according to the third embodiment along a section line B-B shown in FIG. 9;

Fig. 12 is a schematic and enlarged view of a in Fig. 11 with Z

designated area of the wind deflector according to the third embodiment;

13 is a schematic exploded view of the wind deflector according to a fourth embodiment;

14 is a schematic cross-sectional view of the wind deflector according to the fourth embodiment;

Fig. 15 is a schematic and enlarged view of a in Fig. 14 with C

designated area; FIG. 16 is a schematic and enlarged view of a portion indicated by D in FIG. 14; FIG.

17 is a schematic exploded view of the wind deflector according to a fifth embodiment;

FIG. 18 is a schematic cross-sectional view of the wind deflector according to the fifth embodiment; FIG.

19 is a schematic and enlarged view of a in Fig. 18 with G

designated area;

Fig. 20 is a schematic and enlarged view of one in Fig. 18 with H

designated area;

21 is a schematic cross-sectional view through the wind deflector according to a sixth embodiment;

FIG. 22 is a schematic and enlarged view of one in FIG. 21 with E. FIG

designated area;

Fig. 23 is a schematic and enlarged view of a in Fig. 21 with F

designated area;

Fig. 24a a detail of a schematic representation of the wind deflector

according to a seventh embodiment;

Fig. 24b a detail of a schematic representation of the wind deflector

according to an eighth embodiment;

FIG. 24c a detail of a schematic illustration of a wind deflector according to a ninth embodiment; FIG.

Fig. 24d a detail of a schematic representation of the wind deflector

according to a tenth embodiment. 24e a fragmentary schematic representation of a wind deflector in longitudinal section according to an eleventh embodiment, and

Fig. 24f the wind deflector of FIG. 24e in a plan view.

In the figures, identical or functionally identical elements are provided with the same reference numerals.

Fig. 1 shows a schematic longitudinal sectional view of a wind deflector 10 according to a first embodiment of a vehicle in the form of a passenger car. The wind deflector 10 is - as will be explained below - designed as an active wind deflector.

The passenger car comprises a fixed roof which has a roof frame 12, which is shown particularly schematically in FIG. 1. By the roof frame 12, a roof opening 14 of the roof is limited. The roof opening 14 is associated with a sliding and / or lifting roof, which is relative to the roof frame 12 at least in

Vehicle longitudinal direction movable cover 16 includes. This displaceability of the cover 16, which is designed as a glass cover is illustrated in Fig. 1 by a double arrow 18. The cover 16 can thus be moved between a roof opening 14 closing the closed position and at least one roof opening 14 at least partially releasing open position in the vehicle longitudinal direction, wherein the lid 16 is in Fig. 1 in its open position. In this open state of the lid 16 and the sunroof, the interior 20 of the passenger car via the roof opening 14 is opened.

If the lid 16 is opened and the passenger vehicle moves forward, the roof opening 14 and thus the interior 20 provided with the roof opening 14 are flowed around by an outside flow in the form of an air flow. In Fig. 1, the direction of flow of this outer flow is illustrated by a directional arrow 33.

The wind deflector 10 is held by at least one hinge 22 on the roof frame 12 about a pivot axis relative to the roof frame 12 pivotally. When opening the lid 16 of the wind deflector 10 is pivoted from its stowed position in its protective position in the vehicle vertical direction upwards. This movement takes place, for example by means of at least one drive element, in particular a spring, and / or a motor. The movement of the wind deflector 10 can also take place via a coupling device, via which the wind deflector 10 is coupled to a drive, in particular a motor, for moving the cover 16. Thereby, the movement of the lid 16 and the movement of the wind deflector 10 are effected by means of a motor.

In Fig. 1, a headliner 24 of the passenger car can be seen. By means of the headliner 24, the shell of the passenger car, in particular in the area of the roof to the interior 20 is covered.

As can be seen from FIG. 1, the wind deflector 10 comprises a housing 25 with at least one housing element 26 and at least one deflector element 28, which may be formed, for example, as a lip or lamella or may comprise at least one lip and / or at least one lamella. As illustrated in FIG. 1 by a double arrow 30, the deflector element 28 is capable of linearly oscillating movement in at least one spatial direction relative to the housing element 26. The spatial direction can coincide with the vehicle vertical direction or run obliquely to the vehicle vertical direction and the vehicle longitudinal direction.

The wind deflector 10 also comprises at least one actuator 32, by means of which the deflector element 28 is movable in a linearly oscillating manner relative to the housing element 26 in the spatial direction. In other words, the actuator 32 can drive the deflector element 28 and thereby move it along the spatial direction. This spatial direction is thus a direction of movement along which the deflector element 28 can be moved.

The wind deflector 10 also comprises a sealing element, not shown in FIG. 1, which is designed as a flexible membrane. The flexible membrane is arranged on the one hand on the housing element 26 and on the other hand on the deflector element 28, so that the flexible membrane caused by the actuator 32 movement of the

Deflector element 28 moves.

In Fig. 1, a control unit 34 of the wind deflector 10 can be seen. By means of the control device 34, the actuator 32 is controlled. For this purpose, the control unit 34 is coupled to the actuator 32 via at least one electrical line in the form of a cable 36. Via the cable 36, control or regulating signals can be transmitted from the control unit 34 to the actuator 32 and received by the actuator 32. Furthermore, it is possible that corresponding signals are transmitted from the actuator 32 via the cable 36 to the control unit 34, so that the control unit 34 receives information about the current state of the actuator 32. By a dashed line in Fig. 1, for example, the power supply of the controller 34 is illustrated.

Via a further electrical line in the form of a cable 38, the control unit 34 is coupled to a sensor 40 for detecting at least one fluidic parameter in the interior 20. The sensor 40 is, for example, a microphone for detecting a pressure prevailing in the interior 20 as the characteristic. The microphone is directed to the interior 20. Alternatively or additionally, the sensor 40 may serve to detect a flow velocity in the interior 20. The detected by means of the sensor 40, fluidic characteristic is transmitted via the cable 38 to the controller 34, so that the actuator 32 can be controlled by the controller 34 in dependence on the fluidic characteristic.

If no appropriate countermeasures are taken, it may come with open lid 16 to a buzzing or Wummergeräuschen in the interior 20. These wummering sounds are due to the fluidic

Parameter characterized or can be detected by the fluidic characteristic. The sensor 40 thus serves as a sensor for detecting the Wummergeräusche, wherein a Wummergeräusche characterizing signal is transmitted via the cable 38 to the controller 34 and the actuator 32 is operated or regulated in response to the signal.

Since the actuator 32 by means of the controller 34 in response to the

fluidic characteristic is controlled, also effected by the actuator 32, linear oscillating movement of the deflector element 28 in response to the fluidic characteristic and thus from the Wummergeräuschen. The noise noises can thus be targeted counteracted by corresponding linear oscillating movement of the deflector element 32, since the linear oscillating movements can be adapted to the Wummergeräusche.

By means of the sensor 40, it is thus possible to detect pressure changes in the interior 20. The deflector element 28 is now moved via the actuator 32 in such a way that a change in the flow direction of the outer flow directed counter to the current and by means of the sensor 40 in the interior space 20 is brought about periodically and in phase. By this change of the flow direction can periodic pressure changes and the resulting whining noises are suppressed. The sealing of the deflector element 28 against the

Housing element 26 by means of the flexible membrane thereby ensures particularly favorable flow conditions, so that a particularly quiet ride with open lid 16 can be realized.

Based on Fig. 2a, a so-called feed-forward control of the actuator 32 and thus of the deflector element 28 is illustrated. The feedforward control comprises a controller 42, the actuator 32 and an acoustic path 44, wherein the controller 42 and the acoustic path 44 one or more interference signals are supplied. This is illustrated by directional arrows 46.

Based on FIG. 2 b, a feedback-forward control is illustrated which comprises the controller 42, the actuator 32 and the acoustic path 44. The acoustic path 44 while one or more noise signals are supplied, which is illustrated by the directional arrow 46. Furthermore, a feedback of the controller output, which is illustrated in Fig. 2b by a directional arrow 48.

Optionally, at least one phase shifter and / or at least one filter can be provided, wherein the phase shifter and / or the filter can be embodied either in analog or digital form.

The filter can also be integrated in the sensor 40 for detecting the Wummergeräusche. To adapt the control parameters to the respective driving state, a CAN-BUS connection of the control device 34 is advantageous, which is likewise illustrated by the dashed line in FIG. 1. Vehicle-specific variables can be tapped and processed in the control or in the controller 42 via the CAN-BUS. As part of the feedforward or feedbackward regulation, the

Noise signals are eliminated, wherein the interference signals can be either directly recorded or detected signals or signals supplied via the CAN-BUS.

Instead of the regulation, an electronic control of the actuator 32 and thus of the deflector element 28 may also be provided. In this case, an electronic control and / or regulation with characteristic-controlled or map-controlled output signal is conceivable. In this context, for example, vehicle data from different BUS networks can be processed. In this case, an analog and / or digital signal processing in the control unit 34 take place. Furthermore, the use at least one microcontroller, a digital signal processor and / or application-specific integrated circuit (ASIC) possible. The filtering of the interference signals from the environment of the passenger car and / or from the interior 20, the detection of Wummergeräusche

can affect analog, and / or digital, that is, by means of an analog and / or digital filter. Furthermore, a diagnosis of malfunctions and the activation of the actuator 32 can be provided.

With regard to the sensor 40, which is designed as a microphone, for example

different shingles conceivable. The sensor 40 may be arranged, for example, in the headliner 24 or in an overhead control unit, via which the vehicle occupants can operate the adjustment of the cover 16. Exactly one sensor can be used to capture the wander signals. Alternatively, the use of multiple sensors for detecting the Wummergeräusche is conceivable.

3 shows a block diagram of the controller 34. The controller 34 includes a power supply 49 having a terminal 15 terminal 50, a terminal 30 terminal 52, and a terminal 31 terminal 54

Control unit 34, a CAN module 56 with a CAN high connection 58 and a CAN low connection 60, via which the control unit 34 to the CAN bus of the

Passenger car can be connected. FIG. 3 also shows the sensor 40 embodied as a microphone, which is supplied with energy, in particular electrical current, via a supply connection 61. Further, the sensor 40 is connected to an amplifier 63 of the controller 34, by means of which the

Wummergeräusche characterizing and provided by the sensor 40 and transmitted to the control unit 34 signal is amplified. The signal is finally filtered by means of a low-pass filter 62 and an all-pass filter 64 and can be limited by means of a limiter 66. Finally, it is amplified by a further amplifier 68, whereupon it is transmitted to the actuator 32 as a control signal or control signal.

In order to generate the control signal, the control unit 34 comprises a microcontroller 70 to which at least one diagnostic signal 72 and the signal of the sensor 40 designated 74 are supplied. The microcontroller 70 provides the phase 76 and the gain 78 as well as a turn-on and turn-off signal 80, thereby controlling the actuator 32. As a result, the deflector element 28 can be activated by means of the actuator 32 and specifically as a function of the detected by means of the sensor 40

Loud noises can be moved linearly oscillating.

Fig. 4a-c show the actuator 32, which is designed as an electrodynamic actuator. The actuator 32 comprises an iron core 82, permanent magnets 84 and a

Spool 86, which is movable along the direction of movement relative to the iron core 82. The bobbin 86 can thereby at least indirectly with the

Abweiserelement 28 be coupled, so that the deflector element 28 is at least indirectly by means of the bobbin 86 linearly oscillating movable.

The actuator 32 is thus designed as a linear drive and has, for example, a stroke of +/- 2 millimeters, so that the bobbin 86 has a total movement of 4 millimeters. By means of the actuator 32, a force of, for example, about 3.5 Newton can be applied to the deflector element 28.

Preferably, the bobbin 86 is movable relative to the iron core 82 at a frequency in a range of 15 hertz to 25 hertz inclusive, thus also causing the deflector element 28 to oscillate linearly at a frequency ranging from 15 hertz to 25 hertz inclusive can. For example, the actuator 32 has an operating temperature range of -40 ° C to + 105 ° Celsius inclusive.

FIGS. 5 to 8 show the wind deflector 10 according to a second embodiment. The housing element 26 is inherently rigid and formed from a first plastic in the form of glass fiber reinforced plastic. As a result, the housing element 26 has a very high rigidity. The housing element 26 has a passage 88, via which the deflector element 28 can at least partially be pulled out of the housing element 26 and at least partially retracted into the housing element 26. In the region of the passage 88, the flexible membrane designated 90 in FIG. 6 is arranged, through which the passage 88 is at least partially covered.

The flexible membrane 90 is formed from an elastomer which differs from the first plastic. The flexible membrane 90 is injection-molded onto the housing element 26, in particular as part of an injection molding process. As a result, the housing element 26 and the flexible membrane 90 form a two-component plastic component (2K molded part), which is manufactured as part of an injection molding process. Through the housing element 26 is a first component of the two Component plastic component formed, wherein the flexible membrane 90, a second component of the two-component plastic component is formed. The two components have different stiffnesses. While that

Housing element 26 is intrinsically stiff, the flexible membrane 90 is form-labile or limp, so that the one hand held on the housing member 26 and on the other hand attached to the deflector 28 membrane 90 is moved in oscillating movements of the deflector element 28. As can be seen from FIG. 6, the housing 25 comprises a housing lower part 92 connected to the housing element 26, so that a receiving space 94 of the wind deflector 10 is at least partially delimited by the housing element 26 and the housing lower part 92.

As can be seen particularly clearly from FIG. 6, the housing 25 is designed without sharp edges, so that particularly favorable flow conditions for the air flowing around the housing 25 can be created. The deflector element 28 is at least partially received in the housing 25 and serves to disturbances in the

To induce airflow.

As can be seen from Figs. 6 and 7, a front lower edge 96 of the

Housing member 26 is provided with a sealing lip 98, by means of which the wind deflector 10 is sealed to the shell of the passenger car. The sealing lip 98 is likewise formed from an elastomer and can be injection-molded onto the housing element 26 as part of the injection molding process, which is also referred to as 2K process. As particularly well Fig. 8 can be seen in conjunction with Fig. 5, the deflector element 28 and the flexible membrane 90 are positively connected to each other. For this purpose, the deflector element 28 has a plurality of pinnacles 100 on its upper edge and nests 102 arranged between the pinnacles 100. When mounting the wind deflector 10, the pinnacles 100 are pressed or inserted through corresponding slots of the membrane 90. Each of the pinnacles 100 is provided with a circumferential groove 104 (FIG. 8) into which the flexible membrane 90 engages after assembly. As a result, the grooves 104 and the flexible membrane 90 form a respective positive connection.

FIGS. 9 to 12 show the wind deflector 10 according to a third embodiment. The housing element 26 is also formed in the third embodiment of a plastic in the form of a glass fiber-filled or glass fiber reinforced plastic. The wind deflector 10 according to the third embodiment comprises a cover member 106 which is made of a first plastic, for example of a thermoplastic Plastic, is formed. The membrane 90 is now formed from a different from the first plastic of the cover 106, second plastic and not, as in the second embodiment, to the housing member 26, but to the

Covering element 106 injection-molded in the context of an injection molding process. As a result, a two-component plastic component is thus formed by the flexible membrane 90 and the cover element 106, which can be produced independently of and thus at least partially simultaneously with the housing element 26.

As part of the production of the wind deflector 10, the cover member 106 is placed with the membrane 90 molded onto the housing member 26. It can be seen particularly clearly from FIGS. 11 and 12 that the two-component plastic component with the cover element 106 and the membrane 90, in particular the cover element 106, is connected to the housing element 26 via respective connection regions 108. This connection is preferably by means of friction welding, so that the

Cover member 106 is connected to the membrane 90 inseparably connected to the housing member 26.

As in the second embodiment, the front lower edge 96 of the

Housing member provided with the sealing lip 98, wherein the sealing lip 98 is injection molded in the context of an injection molding process to the housing member 26. As a result, a two-component plastic component is also formed by the housing element 26 and the sealing lip 98, since the housing element 26 and the sealing lip 98 can be formed from different plastics.

FIGS. 13 to 16 show the wind deflector 10 according to a fourth embodiment. To realize a high dimensional stability of the wind deflector 10 and in particular of the housing element 26, two integrated bridges are used in the present case, which are referred to as housing bridges 110. As can be seen from FIG. 13, the passage 88 in the region of the housing bridges 110 is bridged by them.

Due to the housing bridges 110 are three in the longitudinal direction of the

Wind deflector 10 spaced apart Abweiserlippen 114th

provided, which form a total lip. In other words, this entire lip is made in three parts. Thus, the housing bridges 110 between the

Abweiserlippen 14 are arranged and the Abweiserlippen 114 can be moved linearly oscillating next to the housing bridges 110, without causing a collision with the housing bridges 110 or to a disability of the linear oscillating movement through the housing bridges 110 comes. The respective

Deflector lip 114 may be pointed, round and / or aerodynamically shaped and have any free-form.

In the fourth embodiment, the deflector element 28 comprises at least one base body in the form of a lamella 112 and deflector lips 114 formed separately from the lamella 112 and connected to the base body (lamella 112), which are placed on the lamella 112 and arranged above the lamella 112 in the vehicle vertical direction , In the fourth embodiment, for fixing the

Abweiserlippen 114 on the blade 112 claw plates 116 used. The deflector lips 114 are formed from a thermoplastic material. As can be seen particularly well from Fig. 16, the deflector lips 114 are positively connected to the respective claw plate 116, wherein the respective claw plate 116 in a

corresponding receptacle 118 of the blade 112 is inserted. The respective claw plate 116 formed from a spring steel engages with at least one wall of the lamella 112 delimiting the respective receptacle 118, so that the respective claw plate 116 is frictionally and / or positively connected to the lamella 112. It can be provided that the respective deflector lip 114 molded to the respective claw plate 116 or that the respective claw plate 116 is at least partially encapsulated by the respective deflector lip 114.

By this configuration of separately manufactured components, which are interconnected after their manufacture, for example, plugged together, a modular design is realized. As a result, the wind deflector 10 can be easily manufactured and assembled.

FIGS. 17 to 20 show the wind deflector 10 according to a fifth embodiment, wherein the deflector element 28 comprises the deflector lips 114. To the from the

formed thermoplastic deflector lips 114 molded from a plastic springs 120 are molded. The Abweiserlippen 114 and the respective springs 120 may be integrally formed with each other, so that the respective spring 120 may be formed of a thermoplastic material. As can be seen particularly well from FIGS. 18 and 19, the respective spring 120 is pressed into a respectively corresponding receptacle 122 of the lamella 112. The receptacle 122 is formed at least substantially wedge-shaped and tapers in the insertion direction, in which the respective spring 120 is inserted into the corresponding receptacle 22. In the present case, the receptacle 122 tapers down in the vehicle vertical direction. In order to Corresponding to the respective spring 120 is at least substantially wedge-shaped, wherein the respective spring 120 tapers in the insertion direction.

During assembly of the wind deflector 10, the respective springs 120 are inserted through corresponding slots of the flexible membrane 90 therethrough. As a result, the flexible membrane 90 in the assembled state between the respective

Deflector lip 114 and the blade 112 clamped so that the flexible membrane 90 is positively connected to the deflector element 28.

FIGS. 21 to 23 show the wind deflector 10 according to a sixth embodiment. As in the case of the fourth embodiment and in the fifth embodiment, the housing element 26 is inherently rigid and formed from a glass fiber reinforced plastic. According to the sixth embodiment, the deflector element 28 comprises the at least one lamella 112 and at least one deflector lip 114, which is a component manufactured separately from the lamella 112 and connected to the lamella 1 2, in particular positively connected. The fin 112 and the deflector lip 114 are preferably formed from mutually different plastics, wherein the deflector lip 114 may be softer than the fin 112.

As can be seen particularly well from FIG. 22, the deflector lip 114 placed on the lamella 112 is integrated into the flexible membrane 90 or vice versa. In other words, the flexible membrane 90 is integrally formed with the deflector lip 114 so that the flexible membrane 90 and the deflector lip 114 are formed of an elastomer. The connection of the Abweiserlippe 114 and thus the flexible membrane 90 with the lamella 112 via at least one and preferably a plurality of at least substantially mushroom-shaped pins 124, which are arranged on the lamella 112 or integrally formed therewith. The pins 124 are molded onto the lamella 112, for example.

The upper deflector lip 114 has pockets 124 corresponding to the pins in the form of receptacles 126, into which the pins 124 are inserted. As a result of the insertion, the pins 124 engage behind respective walls bounding the respective receptacles 126, so that the deflector lip 114 is connected in a form-fitting manner to the lamella 112.

Fig. 24a shows the wind deflector 10 according to a seventh embodiment. The

Abweiserelement 28 may be formed as a deflector lip 114 or at least a deflector lip 114 which may be connected to a slat, such as the slat 112, which is not shown in FIG.

As can be seen from Fig. 24a, the deflector element 28 is over at least one

Spring element 128 mounted on the housing base 92. Preferably, several

Spring elements 128 provided for storage. The respective spring element 128 may be formed as a spiral or leaf spring, so that a coil spring or a symmetrical leaf suspension is provided for storage. The actuator 32 effecting the linear oscillating movement of the deflector element 28 is not shown in FIG. 24a.

The respective spring element 128, in particular the respective leaf spring, can be fixed on the fixed side on the iron core 82, in particular directly on the iron core 82, and on the movable side directly on the bobbin 86. The iron core 82 of the actuator 32 serves the entire system as a dimensional reference. Due to its position and its high rigidity, it is particularly well suited as a reference system. Electric current for supplying the electric coil of the actuator 32 is preferably conducted through the at least one spring element 128. By attaching the spring element 128 to the bobbin 86, for example, a cable between the electric coil and the spring element 128 can be saved. Preferably, the spring elements 128 are arranged parallel to the deflector element 28, in particular to the lamella 112, and as directly as possible under its or its center of gravity.

Fig. 24b shows the wind deflector 10 according to an eighth embodiment. The

Deflector element 28, in particular the movable deflector lip 114, is mounted on the housing 25 via the flexible membrane 90, in particular on the housing element 26 and / or on the housing lower part 92.

By the flexible membrane 90 is a bellows, in particular a bellows, formed, which both the function of the storage of the deflector element 28 and the

Function of the sealing of the deflector element 28 against the housing 25 takes over. Due to the design of the flexible membrane 90 as a bellows, the flexible membrane 90 can move particularly well with the deflector element 28 and yet firmly on the one hand with the housing 25 and on the other hand firmly with the

Deflector element 28 may be connected. Fig. 24c shows the wind deflector 10 according to a ninth embodiment. In the ninth embodiment, a hydraulic or pneumatic drive for effecting the linear oscillating movement of the deflector element 28 is provided. For this purpose, the deflector element 28 is coupled to a fluid volume 130. By conveying a fluid, for example a gas or a liquid, by means of at least one pump, the fluid volume 130 can be increased and decreased. This is illustrated in FIG. 24 c by a double arrow 132. By alternately increasing and decreasing the fluid volume 130, the linear oscillating movement of the deflector element 28 can be effected. By way of example, a hydraulic or pneumatic drive of the deflector element 28 by means of exactly one drive or actuator is illustrated on the basis of FIG. 24c.

Fig. 24d shows the wind deflector 10 according to a tenth embodiment. To the

To effect the linear oscillating movement, a plurality of actuators 32 or exactly one actuator 32 may be provided. The at least one actuator 32 can be designed as a hydraulic, pneumatic or mechatronic drive or actuator.

As can be seen from FIG. 24d, the actuator 32 comprises a cylinder 134 and a piston 136 corresponding thereto, which is accommodated in the cylinder 134 and is linearly movable relative to the cylinder 134. With the piston 136, a piston rod 138 is coupled, which is at least indirectly connected to the deflector element 28. Thus, linear movements of the piston 136 relative to the cylinder 134 can be transmitted to the deflector element 28 via the piston rod 138. By means of the bearings of the deflector element 28 on the housing 25 described with reference to FIGS. 24a to 24d, a lateral force-free and particularly low-friction bearing can be realized.

The cable 36, via which the actuator 32 is supplied with electric current or with the fluid, preferably extends from the fixed side of the spring element 128 through the housing 25 as far as possible in its end. The exit of the cable 36 occurs at or at least near the pivot axis of the wind deflector 10 to avoid an excessively large alternating bending stress of the cable 36. This can be seen particularly well from FIG. 1. Starting from this outlet on the cable 36 runs outside of the wind deflector 10 back to a plug of the controller 34th

In other words, electric current supplied to the electric coil is preferably transmitted to the electric coil via the spring element 128. For this purpose, the spring element 128 is attached to the iron core 82 and simultaneously with the cable 36 for Transmitting the electrical current electrically contacted. On the other hand that is

Spring member 128 attached to the bobbin 86, wherein it is electrically contacted simultaneously with the electric coil.

Preferably, it is provided that respective bushings for the cable is sealed by means of at least one respective sealing element in order to avoid unwanted ingress of moisture and water. Furthermore, appropriate

Cable ducts may be provided, in which the cable is at least partially arranged. These cable channels are used to guide the cable.

Figs. 24e and 24f show the wind deflector 10 according to an eleventh embodiment in a longitudinal section and a plan view, respectively. From this it can be seen that the

Abweiserelement 28 is mounted on at least one leaf spring 170 on the housing base 92. The actuator 32 causing the linear oscillating movement of the deflector element 28 is not shown here. The leaf spring 170 is fastened by means of screw connections 171 to the deflector element 28 and to the housing lower part 92. The width of the leaf spring 170 is indicated by the arrow 172 in FIG. 24f. Due to the symmetrical arrangement of the leaf spring 170 relative to the deflector element 28, no bending moment about the x-axis is introduced into the deflector lip 114. In addition, by the wide leaf spring 170 bending moments are supported about the y-axis. As a result, the guidance in the x and y direction is ensured, so that the in Fig. 4a shown

Guide pins including the bushings on the drive or on the actuator can be omitted.

Claims

claims

A wind deflector for a vehicle, comprising at least one housing element (26), with at least one at least partially in the housing element (26).

received deflector element (28), with at least one actuator (32) by means of which the deflector element (38) in at least one spatial direction relative to the housing element (26) is linearly oscillating movable, and with at least one sealing element by means of which the deflector element (28) is sealed at least in a partial area against the housing element (26),

characterized in that

the sealing element is designed as a flexible membrane (90), which on the one hand on the housing element (26) and on the other hand on the deflector element (28) is arranged mitbewegbar with this.

2. Wind deflector according to claim 1,

characterized in that

the deflector element (28) is mounted on the housing element (26) via the flexible membrane (90).

3. Wind deflector according to one of claims 1 or 2,

characterized in that

the inherently rigid housing element (26) is formed from a first plastic, wherein the flexible membrane (90) consists of one of the first plastic

different, second plastic formed and molded onto the housing element (26).

4. Wind deflector according to one of claims 1 or 2,

characterized in that

at least one cover element (106) formed from a first plastic is provided, on which the molded of a first plastic different, second plastic formed flexible membrane (90) is molded, wherein the housing member (26) at least partially by the housing element (26) arranged cover member (106) is covered.

5. Wind deflector according to one of the preceding claims,

characterized in that

the flexible membrane (90) and the deflector element (28) are positively connected to each other.

6. Wind deflector according to one of the preceding claims,

characterized in that

at least one sealing lip (98) for sealing the housing element (26) against a body of the vehicle is provided on the housing element (26).

7. Wind deflector according to one of the preceding claims,

characterized in that

the deflector element (28) comprises at least one main body (112) and at least one deflector lip (114) formed separately from the main body (112) and connected thereto, which is arranged above the main body (112) in the vehicle vertical direction. ,

8. Wind deflector according to claim 7,

characterized in that

the main body (1 2) and the deflector lip (114) from each other

different materials, in particular plastics, are formed.

9. Wind deflector according to one of claims 7 or 8,

characterized in that

the deflector lip (114) is connected to the base body (112) in a form-fitting and / or force-locking manner.

10. Wind deflector according to one of claims 7 to 9,

characterized in that

the flexible membrane (90) is integrally formed with the deflector lip (114).