DE102018214112A1 - Arrangement of a fluid line on an air guide element, method for arranging a ventilation bell on an air guide element and air guide element - Google Patents

Abstract

The invention relates to an arrangement of at least one fluid line (32) on an air guide element (12) in a front end (14) of a motor vehicle (10), the air guide element (12) being arranged in front of a radiator (18) when viewed in the vehicle longitudinal direction (x direction) The air guide element (12) is formed from foam and the air guide element (12) has at least one insertion section (30) that is open on one side for the non-positive and / or positive locking of the at least one fluid line (32). The invention further relates to a method for arranging a ventilation bell (34) for a headlight (26) on an air guide element (12) and an air guide element (12) made of foam.

Description

The invention relates to an arrangement of a fluid line on an air guide element made of foam, in particular the arrangement of a ventilation bell for a headlight on an air guide element. The invention further relates to a method for arranging a ventilation bell on an air guide element and an air guide element made of foam.

Out DE 198 31 256 A1 a holder for a heat exchanger of motor vehicles is known, the heat exchanger being a charge air cooler, a condenser or an oil cooler. The holder comprises a frame which forms an air guide frame extending from the cooler to an air inlet opening. The frame can be formed as a foamed molded part made of thermoplastic foam particles. The heat exchanger can be inserted into the frame. For this purpose, the frame comprises two spaced-apart side legs, in the inner sides of which guides designed as grooves are provided in order to be able to insert the heat exchanger like a drawer and to hold it between the two side legs of the frame.

Out DE 11 2015 002 049 B4 An air duct for a motor vehicle is known, the air duct having a frame with two openings. The first opening is for the inlet of an air flow originating from outside the motor vehicle and the second opening is provided for guiding the air flow to an air filter housing. A seal is formed in one piece with the air duct or the air filter housing. The air duct can be made of polypropylene.

The invention has for its object to provide an arrangement of a fluid line on an air guide element, a method for arranging a ventilation bell on an air guide element and an air guide element by means of which a fluid line or a ventilation bell can be fixed to the air guide element in a simple manner.

The object is achieved according to the invention with the features of the independent claims. Further practical embodiments and advantages of the invention are described in connection with the dependent claims.

The invention relates to an arrangement of a fluid line on an air guide element in a front end of a motor vehicle, the air guide element being arranged in front of a radiator when viewed in the longitudinal direction of the vehicle (x direction). A fluid line in the sense of the invention generally means fluid-carrying lines, in particular pipes or hoses. These can be both rigid and flexible in such a way that gaseous fluids and / or liquids can flow through them. In particular, a fluid line is understood to mean a filling hose for a washing water tank and / or a ventilation bell for a headlight. The air guiding element extends in particular like a frame or as a largely closed frame from an air inlet in the area of a radiator grille in a front end of a motor vehicle to the radiator, sealingly enclosing the area between the radiator grille and the radiator in such a way that all or a large part of the through Airflow flowing into the radiator protection grille reaches the radiator. A lateral flow of air past the air guide element and / or the cooler is thus counteracted with the air guide element.

The air guide element is made of foam, in particular EPP foam. In particular, it has a density of greater than 30 g / l, values between 30 g / l and 60 g / l being particularly preferred, in particular values of 35 g / l or 50 g / l.

The air guide element has at least one insertion section that is open on one side for the non-positive and / or positive locking of the fluid line. On the open side, the insertion section has an insertion opening and enables the fluid line to be inserted into the insertion section in an insertion direction E and thus the fluid line to be fixed to the air guide element. The insertion section, which is open at least on one side, is designed for non-positive fixing of the fluid line in such a way that it holds the fluid line in a clamped manner and counteracts pulling the fluid line out of the insertion section in a direction opposite to the insertion direction E. In particular, a c-shaped insertion section is suitable for this. Such an insertion section takes up little space and is in particular only formed on the air guiding element where a fixation of the fluid line is necessary.

An air guiding element according to the invention with an insertion section enables a fluid line to be fixed without further components and in particular without an assembly tool. In particular, the fluid line can be mounted on the air-guiding element without screwing, as a result of which an air-guiding element with a small wall thickness and thus a low weight can be used. An air-guiding element made of foam enables particularly well the production of an insertion section that is open on one side and by means of which and / or a form-fitting connection of a fluid line can be implemented. In particular, undercuts and preferably c-shaped insertion sections can easily be achieved by means of forced demolding due to the elasticity of the foam.

In particular, the fluid line is a ventilation bell of a headlight, and the plug-in section is designed such that the ventilation bell is at least partially received in the plug-in section. A ventilation bell is usually provided as an end section of a fluid line provided for ventilation of a headlamp, ie it is designed or arranged. The ventilation bell has a bell-shaped outer contour with an upper section with a smaller diameter and a lower section with a larger diameter. An upper end of the ventilation bell is fluidly connected to the fluid line leading to the headlight. The plug-in section for receiving the ventilation bell is in particular funnel-shaped or bell-shaped, and preferably the inner contour of the plug-in section corresponds to the outer contour of the ventilation bell, ie these are complementary. For the non-positive fixing of the ventilation bell, the insertion section surrounds the ventilation bell preferably over a large part of its circumference, except for the insertion opening at which the insertion section is open on one side. A form-fitting fixation is in particular in a direction transverse - and preferably perpendicular - to the direction of insertion e realized by the insertion section transversely to the insertion direction E having at least one contact surface for the ventilation bell. The air guiding element preferably has two plug-in sections, which each serve to fix a ventilation bell for a right-hand headlight and a left-hand headlight.

In a practical embodiment of an arrangement according to the invention, a through opening extending through the air guiding element is formed in the air guiding element and an end section of the fluid line is arranged in fluid communication with the through opening. The end section of the fluid line is, in particular, the ventilation bell already described above, which is provided at the end of a fluid line serving to vent a headlight. Fluid which flows through the fluid line is advantageously introduced through the through opening in the air guide element into the air flow flowing from the radiator grille to the radiator. It is particularly preferred if the air flowing from the radiator grille in the direction of the radiator creates a negative pressure in the fluid line and in particular the ventilation bell, and thus the ventilation of the headlamp is improved.

In particular, the end section of the fluid line is arranged sealingly in the through opening, so that air flowing from the radiator protection grille in the direction of the cooler cannot escape through the through opening. The sealing function of the air guiding element is thus maintained despite the formation of a through opening, in that it is sealed by the end section of the fluid line. No other components such as seals are required for sealing, and the air flow from the radiator grille towards the radiator is not impaired.

In a further practical embodiment, the insertion section which is open on one side extends at least over part of the length of the through opening. This means that the fluid line is fixed directly in the area of the through opening. The through opening thus has two functions: on the one hand, the passage of fluid from the fluid line in the direction of the air flow to the cooler and, on the other hand, the fixing of the fluid line. The fluid line is thus fixed in a particularly space-saving manner. Such a combination of through opening and insertion section is particularly suitable for fixing the ventilation bell, which, viewed in height, has different diameters and is therefore difficult to insert in the main direction of extension of the through opening. The vent bell can thus be inserted into the through opening in a simple manner via the insertion opening in the insertion direction E.

The ventilation bell is arranged in a particularly captive manner on the air guiding element if the ventilation bell is positively fixed in the through opening in at least one direction. In particular, the ventilation bell is positively fixed in the vertical direction of the vehicle and in the longitudinal direction of the ventilation bell. This direction corresponds in particular to the direction in which the fluid line leading to the headlight connects to the ventilation bell. By means of this fluid line leading to the headlamp, slight tensile forces can be exerted on the ventilation bell, pulling the ventilation bell out of the through opening is then counteracted by the positive connection.

In particular, the ventilation bell is additionally also non-positively fixed, the non-positive fixing being carried out in a direction deviating from the vertical direction of the ventilation bell. If, as described above, the insertion section is formed over part of the length of the demolding opening, the ventilation bell is positively and non-positively fixed within the through opening.

The vent bell is positively fixed in the passage opening in particular in that a first bearing surface and a second bearing surface are formed in the passage opening, a lower section and in particular the lower end of the ventilation bell resting on the first bearing surface and an upper section of the ventilation bell on the second contact surface. The first and / or the second contact surface are in particular realized as a shoulder arranged or formed in the through opening. The contact surfaces are in particular arranged or designed in such a way that they fix the ventilation bell in a form-fitting manner in the vertical direction of the vehicle and thus counteract a pulling out of the ventilation bell in the vertical direction of the vehicle and a gravity-dependent removal of the ventilation bell from the through opening.

The first contact surface and the second contact surface are, in particular, demolded in different directions, and accordingly the through opening has demolding openings arranged offset, which extend transversely to the main through direction of the through opening. At least one demolding opening preferably corresponds to the insertion opening for fixing the fluid line in the insertion section that is open on one side.

The air guiding element is particularly advantageously produced in one piece, i.e. the insertion section, which is open on one side, is also made in one piece on the air guiding element. The production of the air guiding element from foam favors the one-piece production, since the elasticity of the material enables undercuts to be demolded. One-piece production is particularly inexpensive.

The invention also relates to a method for arranging a ventilation bell for a headlight on an air guiding element. A through opening with a first contact surface and a second contact surface is formed in the air guide element, the ventilation bell being pivoted by a certain angular section and / or being moved along a complex insertion path in such a way that the ventilation bell with a lower section with the first contact surface for contacting is brought and an upper section of the ventilation bell is brought into contact with the second contact surface. In particular, the lower section - and preferably the lower end of the ventilation bell - is first brought into contact with the lower contact surface, the ventilation bell is then pivoted by a certain angular range and then the upper section is brought into contact with the upper contact surface. The pivoting takes place in particular about an axis perpendicular to the main direction of flow through the ventilation bell. The elastic air guiding element facilitates the arrangement of the ventilation bell in the through opening.

The invention further relates to an air guide element made of foam, at least one insertion section open on one side being formed on the air guide element for the non-positive and / or positive fixing of a fluid line. As already described above, such an air-guiding element made of foam enables such an insertion section to be formed in a simple manner, since the elasticity of the material permits forced demolding.

In addition, a through opening protruding through the air guide element is formed in the air guide element. In particular, the insertion section extends over part of the length of the through opening, so that fluid is simultaneously discharged from the fluid line in the direction of the cooler and the fluid line, in particular a ventilation bell, is fixed. For further advantages in connection with the air guiding element, reference is made to the above description.

• 1 ein Kraftfahrzeug in einer Seitenansicht,
• 2 eine Anordnung eines erfindungsgemäßen Luftführungselementes in einer ersten Ausführungsform in einem Vorderwagen in einer Ansicht von vorne,
• 3 den mit III gekennzeichneten Bereich aus 2 in einer vergrößerten perspektivischen Darstellung,
• 4 das Luftführungselement aus 3 in einem Schnitt gemäß Linie IV-IV aus 3 in einer perspektivischen Darstellung,
• 5 das Luftführungselement aus 3 in einem Schnitt gemäß Linie IV-IV aus 3 in einer Seitenansicht,
• 6 das Luftführungselement aus 3 mit einer Entlüftungsglocke in einem Schnitt gemäß Linie VI-VI aus 3 in einer Draufsicht,
• 7 das Luftführungselement aus 3 mit einer Entlüftungsglocke in einem Schnitt gemäß Linie VII-VII aus 3 in einer Draufsicht,
• 8 eine Anordnung einer Entlüftungsglocke in dem Luftführungselement in einer ersten Position in einer Schnittdarstellung analog zur Linie IV-IV aus 3,
• 9 eine Anordnung einer Entlüftungsglocke in dem Luftführungselement in einer zweiten Position in einer Schnittdarstellung analog zur Linie IV-IV aus 3,
• 10 eine Anordnung einer Entlüftungsglocke in dem Luftführungselement in einer dritten Position in einer Schnittdarstellung analog zur Linie IV-IV aus 3,
• 11 eine Anordnung eines erfindungsgemäßen Luftführungselementes in einer zweiten Ausführungsform in einem Vorderwagen in einer Ansicht von vorne und
• 12 den mit XII gekennzeichneten Bereich aus 11 in einer vergrößerten perspektivischen Darstellung.

Further practical embodiments of the invention are described below in connection with the drawings. Show it:

• 1 a motor vehicle in a side view,
• 2 1 shows an arrangement of an air guiding element according to the invention in a front embodiment in a front view,
• 3 the one with III marked area 2 in an enlarged perspective view,
• 4 the air guide element 3 in a cut along the line IV-IV out 3 in a perspective view,
• 5 the air guide element 3 in a cut along the line IV-IV out 3 in a side view,
• 6 the air guide element 3 with a ventilation bell in a section along the line VI-VI out 3 in a top view,
• 7 the air guide element 3 with a ventilation bell in a section along the line VII-VII out 3 in a top view,
• 8th an arrangement of a ventilation bell in the air guide element in a first Position in a sectional view analogous to the line IV-IV out 3 .
• 9 an arrangement of a ventilation bell in the air guide element in a second position in a sectional view analogous to the line IV-IV out 3 .
• 10 an arrangement of a ventilation bell in the air guide element in a third position in a sectional view analogous to the line IV-IV out 3 .
• 11 an arrangement of an air guide element according to the invention in a second embodiment in a front end in a view from the front and
• 12 the one with XII marked area 11 in an enlarged perspective view.

In 1 is a motor vehicle 10 shown in a side view. An arrangement according to the invention with an air guiding element 12 is in a front car 14 of the motor vehicle 10 arranged. The air duct element 12 extends in the front end 14 from a radiator grille 16 which is part of an outer skin of the vehicle 10 forms up to a cooler 18 (see. 2 ). The air duct element 12 is designed like a frame and encloses the area between the radiator grille 16 and cooler 18 and leads the from the radiator grille 16 air flowing in direction L to the radiator 18 ,

An arrangement of a first embodiment of an air guiding element 12 in the front car 14 is in 2 in a view from the front without radiator grille 16 shown. There is a main bumper cross member 20 and a pedestrian protection cross member arranged below in the vehicle vertical direction (z direction) 22 to recognize which, viewed in the vehicle longitudinal direction (x-direction), are arranged directly behind the radiator grille (not shown). The air duct element 12 extends like a frame starting from the main bumper cross member 20 in the vehicle longitudinal direction (x-direction) back to the radiator 18 and a lock carrier 24 , The air duct element 12 lies on the lock carrier 24 on. On the lock bracket 24 are a headlight on the right 26 and two lock supports 28 arranged.

The air duct element 12 is made in one piece from foam.

As in the enlarged representation in 3 are clearly visible, are in the air guide element 12 two insertion sections open on one side 30 for fixing a fluid line (in 3 not shown) trained. The insertion sections 30 are each viewed in the vehicle transverse direction (y direction) on the outside of the lock supports 28 educated. The insertion sections open on one side 30 In the present case, this first embodiment is used for non-positive and - as will be explained further below - for positive fixing in each case as a fluid line 32 designated ventilation bell 34 for a headlight 26 , The ventilation bell 34 is in this case as an end portion of a fluid line 32 educated. The insertion section 30 is in this first embodiment of the air guide member 12 correspondingly bell-shaped and corresponding to the outer contour of the ventilation bell 34 educated. The insertion section open on one side 30 has an insertion opening 36 on, and the fluid line 32 is in the insertion direction E in the insertion section 30 plugged in. The insertion opening 36 in this case is oriented forwards in the vehicle's longitudinal direction (x-direction). As in the 4 . 6 and 7 you can see the insertion section 30 C-shaped and serves for the non-positive fixation of the fluid line 32 or the ventilation bell 34 in insertion direction E.

The insertion section 30 is partially in a dormer-like area 38 of the air guiding element 12 educated. Due to the connection of the lock supports 28 is the air duct element 12 , as in 3 and 5 as well as in the 8th to 10 is clearly visible in the area of the insertion section 30 partially formed obliquely, ie the air duct element 12 there extends in the vehicle longitudinal direction (x direction) and in the vehicle vertical direction (y direction). The dormer-like area 38 represents a greater height in the vehicle vertical direction (z direction) to form the insertion section 30 represents.

In connection with the 4 and 5 are now further details of the insertion section 30 explained. The insertion section 30 is at the same time as the air duct element 12 outstanding passage opening 40 educated. The insertion section 30 extends over part of the length of the through opening 40 in the vehicle vertical direction (z direction).

For positive locking of the ventilation bell 34 in the insertion section 30 or the through opening 40 in the vehicle vertical direction of the ventilation bell 34 or in the main passage direction H of the passage opening 40 (here in the z direction) are in the through opening 40 a first contact surface 42 and a second contact surface 44 trained, each as a paragraph 46 in the through opening 40 are trained. The first (lower) contact surface 42 prevents the ventilation bell from being removed due to gravity 34 down in the vehicle vertical direction (z direction), and the second (upper) contact surface 44 works by pulling out the ventilation bell 34 towards the top in the vehicle vertical direction (z direction).

The demolding is in the area of the second contact surface 44 through the forward-facing insertion opening 36 possible. The demolding of the first contact surface 42 takes place via a demolding opening looking backwards in the vehicle longitudinal direction (x direction) 48 , The first (lower) contact surface 42 and the second (upper) contact surface 44 extend over the entire circumference of the insertion section 30 except for the insertion opening 36 or up to the draft opening 48 ,

In the 6 to 7 is the arrangement of a ventilation bell 34 in the insertion section 30 or the through opening 40 in the air guiding element 12 shown in a cut. It is clearly recognizable that the vent bell 34 C-shaped from the insertion section 30 except for the insertion opening 36 is enclosed and with the outer contour on the inner contour of the through opening 40 is applied. The ventilation bell 34 is sealed in the through opening 40 arranged.

The ventilation bell 34 is formed in two parts and has a base body 52 and a filter section extending in the lower half 54 (see also 8th to 10 ) on. The filter section 54 has a jagged geometry in a plan view.

The 8th to 10 show a method of arranging the vent bell 34 in the through opening 40 and the insertion section 30 in the air guiding element 12 , This is the vent bell 34 first in insertion direction E with a lower section (here: with the lower end 56 of the lower section) in the insertion section 30 introduced and then the bottom end 56 with the first contact surface 42 brought to the plant. The wall of the through opening 40 points in the area of the first contact surface 42 an insertion slope 58 on so the bottom end 56 the ventilation bell 34 particularly easy to create with the first contact surface 42 comes. After the bottom end 56 the ventilation bell 34 with the first contact surface 42 has been brought to the system, the ventilation bell 34 through a certain angle around the main passage direction H of the passage opening 40 (here the z direction). The ventilation bell is present 34 pivoted about 10 degrees. The pivoting takes place until an upper section 60 the ventilation bell 34 with the second (upper) contact surface 44 comes to the plant.

Overall, the vent bell 34 then in the main passage direction H the through opening 40 (here z-direction) form-fitting and in the direction of insertion e here (x direction) non-positively on the air guiding element 12 fixed.

In the 11 and 12 is a second embodiment of an air guide element 12 shown. For the description of this second embodiment, the same reference numerals are used for identical or at least functionally identical elements as for the description of the first embodiment. Only the differences from the first embodiment are discussed below.

The air duct element 12 according to the second embodiment has a plug-in section that is open on one side 30 on, a fluid line (not shown) non-positively in this insertion section 30 can be fixed. The insertion section 30 is c-shaped and has an insertion opening 36 through which the fluid line can be inserted in the insertion direction E into the insertion section. The insertion opening 30 is oriented outwards in the vehicle transverse direction (y direction) for this second embodiment. Such an insertion section 30 serves in particular for guiding or fastening fluid lines to the air guiding element 12 , There can also be several such plug-in sections 30 be provided, so that the fluid line punctually over a greater length on the air guide element 12 is fixed.

It is also noted that there is also an insertion section 30 for a ventilation bell 34 according to the first embodiment and an insertion portion 30 according to the second embodiment together on an air guide element 12 can be realized.

The features of the invention disclosed in the present description, in the drawings and in the claims can be essential both individually and in any combination for realizing the invention in its various embodiments. The invention can be varied within the scope of the claims and taking into account the knowledge of the person skilled in the art.

LIST OF REFERENCE NUMBERS

10

motor vehicle

12

Air conduit

14

front end

16

Radiator grille

18

cooler

20

Main bumper crossmember

22

Pedestrian protection cross member

24

lock support

26

headlights

28

Schloss support

30

insertion section

32

fluid line

34

vent bucket

36

insertion

38

dormer-like area

40

Through opening

42

first contact surface

44

second contact surface

46

paragraph

48

Outer contour of the ventilation bell

50

Inner contour through opening

52

body

54

filter section

56

lower end of the lower section

58

insertion

60

upper section

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 19831256 A1 [0002]
• DE 112015002049 B4 [0003]

Claims (10)

Arrangement of at least one fluid line (32) on an air guide element (12) in a front end (14) of a motor vehicle (10), the air guide element (12) being arranged in front of a radiator (18) viewed in the vehicle longitudinal direction (x direction), and wherein the air guide element (12) is formed from foam, characterized in that the air guide element (12) has at least one insertion section (30) which is open on one side for the non-positive and / or positive locking of the at least one fluid line (32). Arrangement according to the preceding claim, characterized in that the fluid line (32) is a ventilation bell (34) of a headlamp (26) and the insertion section (30) is designed such that the ventilation bell (34) in the insertion section ( 30) is at least partially included. Arrangement according to one of the preceding claims, characterized in that a through opening (40) projecting through the air guide element (12) is formed in the air guide element (12), an end section of the fluid line (32) being arranged in fluid communication with the through opening (40) is. Arrangement according to the preceding claim, characterized in that the insertion section (30) extends at least over part of the length of the through opening (40). Arrangement according to one of the two preceding claims, characterized in that the ventilation bell (34) is positively fixed in the through opening (40) in at least one direction. Arrangement according to one of the three preceding claims, characterized in that a first contact surface (42) and a second contact surface (44) are formed in the through opening (40), a lower section (56) of the ventilation bell (34) on the first contact surface (42) abuts and an upper section (60) of the ventilation bell (34) bears against the second contact surface (44). Arrangement according to one of the preceding claims, characterized in that the air guide element (12) is made in one piece. Method for arranging a ventilation bell (34) for a headlight (26) on an air guide element (12), a through opening (40) having a first contact surface (42) and a second contact surface (44) being formed in the air guide element (12), characterized in that the ventilation bell (34) is pivoted through a certain angular section and / or is moved along a complex insertion path such that the ventilation bell (34) is brought into contact with the first contact surface (42) with a lower section (56) and an upper section (60) of the ventilation bell (34) is brought into contact with the second contact surface (44). Air guiding element made of foam, characterized in that at least one insertion section (30) which is open on one side is formed on the air guiding element (12) for the non-positive and / or positive locking of a fluid line (32). Air guiding element according to the preceding claim, characterized in that a through opening (40) projecting through the air guiding element (12) is formed in the air guiding element (12).

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