DE102020003002A1 - Front arrangement for a motor vehicle - Google Patents

Abstract

The invention relates to a front arrangement (1) for a motor vehicle. The front arrangement (1) comprises a base support (2) for a radiator arrangement (3) and a bumper (4) with an air opening (5) to the radiator arrangement (3). The front arrangement (1) also comprises a roller blind system (6), which is arranged between the base support (2) and the bumper (4) and is fastened to the base support (2) or to the bumper (4). The roller blind system (6) opens the air opening (5) in the open state and closes the air opening (5) in the closed state Basic contour of the bumper (4) follows.

Description

The invention relates to a front arrangement for a motor vehicle according to the preamble of claim 1.

Front arrangements are, for example, from DE 20 2017 102 954 U1 and DE 10 2012104 723 A1 known. The front arrangement comprises a bumper with an air opening and a system for opening and closing the air opening. The system is arranged between the air opening and a radiator arrangement of the motor vehicle and can be, for example, a roller blind system with a roll-up curtain that can be rolled up and down or a lamella system with several louvers. The system allows the air flow to the cooler arrangement to be adapted - that is, reduced if necessary - and in particular to minimize the air resistance of the motor vehicle.

Disadvantageously, swirling and leakage of air occur in generic systems, which in turn increase the air resistance of the motor vehicle. Furthermore, generic systems have a high space requirement. In the event of a crash, the cooler arrangement and, in particular, the cooler can be broken through by the individual parts of the system and this can result in irreparable damage to the cooler arrangement.

The object of the invention is therefore to provide an improved or at least alternative embodiment for a front arrangement of the generic type, in which the disadvantages described are overcome.

This object is achieved according to the invention by the subject matter of independent claim 1. Advantageous embodiments are the subject of the dependent claims.

A front arrangement is provided for a motor vehicle and comprises a base support for a radiator arrangement and a bumper with an air opening to the radiator arrangement. The front assembly also includes a roller blind system that is disposed between the base bracket and the bumper and is attached to the base bracket or to the bumper. When open, the blind system opens the air opening and when closed, the blind system closes the air opening. According to the invention, the roller blind system is arranged directly in front of the air opening and follows an inner basic contour of the bumper. In other words, the roller blind system is aligned at a nearly constant distance from the air opening and this distance is kept as small as possible. The turbulence and the leakage of air at the air opening and thereby the air resistance of the motor vehicle and the fuel consumption can be reduced. In addition, the roller blind system requires little installation space and has a shallow depth in the X direction of the motor vehicle.

Advantageously, the roller blind system can be fully integrated in the bumper. As a result, the roller blind system can be at a large distance from the base support and from the cooler arrangement, so that the risk of irreparable damage to the cooler arrangement from the roller blind system is reduced in the event of a crash. Furthermore, the base support is not stiffened at all or only slightly. Alternatively, the roller blind system can also be partially or completely integrated into the basic carrier.

It can advantageously be provided that the roller blind system has a right rollable roll curtain and a left rollable roll curtain. The right roller curtain is arranged on a right winding shaft and the left roller curtain can be rolled up and unrolled on a left winding shaft. The winding shafts can then be rotated by means of an actuator and the roller blinds can thereby be rolled up and unrolled. The terms “right” and “left” refer to the arrangement of the roller blinds or the winding shafts to one another when looking in the direction of flow of air through the air opening or when looking against the direction of travel of the motor vehicle. It goes without saying that the two terms serve only to differentiate.

Compared to conventional systems with several slats, there are no air paths between the slats in the roller blinds. This prevents air from leaking and efficiently reduces the air resistance of the motor vehicle. The roller blinds also have an overall higher air tightness with a lower mass. The roller blind system with the roller blinds also has a smaller number of individual parts, so that the risk of irreparable damage to the cooler arrangement by the roller blind system is reduced in the event of a crash. The divided air opening can advantageously also be closed or opened by two roller blinds.

It can advantageously be provided that the actuator is fastened between the two winding shafts and cooperating with at least one of the winding shafts. The actuator can be fastened to the base support, for example. Alternatively, the actuator can be a tubular actuator, which encases one of the winding shafts and is connected to it in cooperation. If the actuator is actuated, the winding shafts are set in rotation and the roller blinds are rolled up or unrolled. This also closes or opens the air opening to the cooler arrangement. The tube actuator is also space-saving on one of the Winding shafts arranged so that the overall space requirement for the roller blind system is reduced.

The right winding shaft and the left winding shaft can advantageously be connected to one another via a ball joint. The right winding shaft and the left winding shaft are then aligned at an angle of less than 180 ° to one another. As a result, the roller blind system can follow the inner basic contour of the bumper regardless of its design, and the swirling and leakage of air can be prevented efficiently.

It can advantageously be provided that the front arrangement comprises a distance measuring sensor system. The distance measuring sensor is then fastened between the two roller blinds in the basic carrier or in the bumper below the actuator. The distance measurement sensor system preferably has a camera and / or a distance sensor. This can advantageously ensure that the distance measurement sensor system is not covered by the roller blind system regardless of the position of the roller blinds. Furthermore, the distance measuring sensor system and the roller blind system can thereby be arranged to save space.

Further important features and advantages of the invention emerge from the subclaims, from the drawings and from the associated description of the figures with reference to the drawings.

It goes without saying that the features mentioned above and those yet to be explained below can be used not only in the combination indicated in each case, but also in other combinations or on their own without departing from the scope of the present invention.

Preferred exemplary embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description, the same reference numerals referring to the same or similar or functionally identical components.

• 1 eine Hinteransicht einer erfindungsgemäßen Frontanordnung;
• 2 eine Schnittansicht der erfindungsgemäßen Frontanordnung;
• 3 bis 5 teilweise Ansichten der erfindungsgemäßen Frontanordnung;
• 6 bis 8 teilweise Ansichten der erfindungsgemäßen Frontanordnung mit einem abweichend ausgestalteten Aktuator;
• 9 und 10 Schnittansichten der erfindungsgemäßen Frontanordnung vor und nach einem Crash;
• 11 und 12 Frontansichten der erfindungsgemäßen Frontanordnung.

Show:

• 1 a rear view of a front assembly according to the invention;
• 2nd a sectional view of the front assembly according to the invention;
• 3rd to 5 partial views of the front assembly according to the invention;
• 6 to 8th partial views of the front arrangement according to the invention with a differently designed actuator;
• 9 and 10th Sectional views of the front arrangement according to the invention before and after a crash;
• 11 and 12th Front views of the front arrangement according to the invention.

1 shows a rear view and 2nd shows a sectional view of a front arrangement according to the invention 1 for a motor vehicle. The front layout 1 includes a basic carrier 2nd for a cooler arrangement 3rd - see also this 9 and 10th - and a bumper 4th with a split air opening 5 . The air opening 5 leads to the cooler arrangement 3rd so that air through the air vent 5 can reach a cooler - not shown here - in the direction of flow SR. The front layout 1 also includes a roller blind system 6 that between the basic carrier 2nd and the bumper 4th is arranged.

The roller blind system 6 includes a right roller blind 7a on a right winding shaft 8a and a left roller blind 7b on a left winding shaft 8b . The respective roller blind 7a and 7b is an area of the divided air opening 5 assigned. The two winding shafts 8a and 8b are about a ball joint 9 acting together. The roller blind system 6 further comprises an actuator 10th , with the actuator 10th the left winding shaft 8b and the left winding shaft 8b about the ball joint 9 the right winding shaft 8a spun. Becomes the actuator 10th actuated, the winding shafts rotate 8a and 8b and the roller blinds 7a and 7b depending on the direction of rotation of the winding shafts 8a and 8b rolled up or unrolled. The roller blind 7a or. 7b has an end strip 11a or. 11b that are on both sides in a guide 12a or. 12b is led. This allows the roller blind 7a or. 7b stable in front of the air opening 5 be positioned.

The roller blinds 7a and 7b are in 1 completely rolled up and in 2nd completely unrolled. Accordingly, in 1 the air opening 5 fully open and in 2nd completely closed. As especially in 2nd the blind system is recognizable 6 immediately before the air opening 5 arranged and follows an inner basic contour of the bumper 4th . The roller blinds 7a and 7b have a high level of airtightness, so that overall at the closed air opening 5 the turbulence and air leakage are minimized.

The front layout 1 also includes a distance measurement sensor system 13 with a camera 14 . The distance measuring sensor 13 is between the two roller blinds 7a and 7b and below the actuator 10th and the ball joint 9 in the basic carrier 2nd attached. The distance measuring sensor 13 is therefore independent of the position of the roller blinds 7a and 7b not covered and space-saving in the front arrangement 1 arranged.

3rd shows a front view of the front assembly 1 . 4th shows a partial plan view of the front arrangement 1 . 5 shows a partial rear view of the front assembly 1 . In 3rd to 5 are for clarity of the basic rack 2nd and the bumper 4th Not shown. The actuator 10th works with the left winding shaft 8b together and the rotation of the left winding shaft 8b is about the ball joint 9 on the right winding shaft 8a transfer. This allows the two roller blinds 7a and 7b rolled up or unrolled together. As especially in 4th the winding shafts are recognizable 8a and 8b thanks to the ball joint 9 aligned at an angle α less than 180 ° to each other. This allows the roller blind system 6 the basic outline of the bumper 4th follow regardless of its design.

6 and 7 partially show views of the front assembly 1 with the alternatively designed actuator 10th . In 8th is a partial top view of the front assembly 1 out 6 and 7 shown. In 6 to 8th are for clarity of the basic rack 2nd and the bumper 4th Not shown. The actuator shown here 10th is a tubular actuator 15 that around the left winding shaft 8b is arranged. This is the blind system 6 designed to save space. Incidentally, the structure of the blind system 6 and the front layout 1 unchanged.

9 shows a schematic sectional view of the front arrangement 1 before a crash. In 10th is the front layout 1 shown after a crash. As in 9 the roller blind system follows 6 the basic outline of the bumper 4th and has a large distance from the base support 2nd and to the cooler assembly 3rd on. The roller blind system 6 is on a bending beam 16 attached and partially in the bumper 4th integrated. After the crash - like in 10th is recognizable - is due to the originally large distance between the bumper 4th and the basic carrier 2nd the radiator assembly 3rd through the roller blind system 6 not broken. Furthermore, the blind system 6 compared to conventional systems with fins smaller number of individual parts, so that there is also the risk of irreparable damage to the cooler arrangement 3rd is reduced by loose parts.

11 and 12th show front views of the front arrangement 1 . In 11 is the roller blind system 6 and accordingly the air opening 5 fully open and in 12th is the roller blind system 6 and accordingly the air opening 5 completely closed. It goes without saying that a partial opening and a partial closing of the air opening 5 by means of the roller blind system 6 possible are. The roller blinds 7a and 7b have a higher air tightness compared to conventional systems with slats, so that at the closed air opening 5 the turbulence and air leakage are minimized.

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 202017102954 U1 [0002]
• DE 102012104723 A1 [0002]

Claims (5)

Front arrangement (1) for a motor vehicle, - the front arrangement (1) comprising a base support (2) for a radiator arrangement (3) and a bumper (4) with an air opening (5) to the radiator arrangement (3), - the front arrangement (1) comprises a roller blind system (6) which is arranged between the base support (2) and the bumper (4) and is fastened to the base support (2) or to the bumper (4), - the roller shutter system (6) being open State opens the air opening (5) and in the closed state closes the air opening (5), characterized in that the roller blind system (6) is arranged directly in front of the air opening (5) and the roller blind system (6) thereby has an inner basic contour of the bumper (4 ) follows. Front arrangement after Claim 1 , characterized in that - the roller blind system (6) has a right rollable roll curtain (7a) and a left rollable roll curtain (7b), and - that the right roll curtain (7a) on a right winding shaft (8a) and the left roll curtain (7b ) are arranged on a left winding shaft (8b) and can be rolled up, and - that the winding shafts (8a, 8b) can be rotated by means of an actuator (10) and the rolling curtains (7a, 7b) can thereby be rolled up and unrolled. Front arrangement after Claim 2 , characterized in that - the actuator (10) is fastened between the two winding shafts (8a, 8b) and cooperating with at least one of the winding shafts (8a, 8b), or - that the actuator (10) is a tubular actuator (15), one of the winding shafts (8a, 8b) is encased and cooperatively connected to it. Front arrangement after Claim 2 or 3rd , characterized in that - the right winding shaft (8a) and the left winding shaft (8b) are connected to one another via a ball joint (9), and - that the right winding shaft (8a) and the left winding shaft (8b) at an angle (α) are aligned less than 180 ° to each other. Front arrangement after Claim 3 or 4th , characterized in that - the front arrangement (1) comprises a distance measurement sensor system (13), preferably with a camera (14) and / or a distance sensor, and - that the distance measurement sensor system (13) between the two roller blinds (7a, 7b) in the Basic carrier (2) or in the bumper (4) below the actuator (10) is attached.

Images