DE202016002147U1 - Brake light with integrated washer fluid nozzle - Google Patents

Abstract

Brake light for a motor vehicle with at least one washing liquid nozzle (16) which is aligned in a final assembly position of the brake light (12) on the motor vehicle on a rear window (6) of the motor vehicle, wherein the washing liquid nozzle (16) has a nozzle body (24) with an outer surface (26 ), in which at least one jet outlet opening (20) is located, and wherein at least one drainage channel (28) is arranged on the outer surface (26) and at least one surrounding area (21) of the outer surface (26) protruding directly onto the jet outlet opening (20) partially encloses.

Description

Technical area

The present development relates to a brake light for a motor vehicle with at least one washing liquid nozzle. In a further aspect, the development relates to a motor vehicle equipped with such a brake light.

background

Brake lights with at least one washing liquid nozzle for arrangement in the outer region of a motor vehicle are in the prior art, for example from the DE 10 2007 033 170 A1 known. A arranged above a rear window or in the upper region of a rear window brake light with integrated Waschflüssigkeitsdüse serves to provide the rear side provided on the vehicle windscreen wiper or washer required for the windscreen washer fluid. The washing liquid nozzle integrated in the brake light is in fluid communication with a feed pump and with a corresponding fluid reservoir. The washing liquid nozzle is directed to a wiping field of the rear window. Such brake lights typically have a light housing equipped with at least one or a plurality of bulbs and a cover plate.

The washing liquid to be applied to the rear window by means of the washing liquid nozzle typically contains water with a cleaning and / or antifreeze additive. The typically made of a plastic cover can have some incompatibility with such cleaning or anti-freeze additives. In practice, premature aging phenomena, such as cracking of the cover in the immediate vicinity of the washing liquid nozzle.

Since the addition of cleaning additives, such as alcoholic cleaning additives to the washing liquid for the functionality of the windscreen washer or wiper device is inevitable and since in particular the composition of the washing liquid can be influenced by the end user, the present development is based on the object, early aging phenomena of the cover, in particular Cracks in the cover of the brake light due to the action of cleaning or anti-freeze additives to avoid the cleaning fluid largely. The solution to be achieved should be as simple and inexpensive to implement. Preferably, it should be accompanied by a weight saving of the motor vehicle.

Advantageous embodiments

This object is achieved with a brake light according to the independent protection claim 1 and with a motor vehicle according to claim 12. Advantageous embodiments are the subject of each dependent protection claims.

Accordingly, a brake light for a motor vehicle is provided with at least one washing liquid nozzle. The Waschflüssigkeitsdüse is aligned in a final assembly position of the brake light on the motor vehicle to a rear window of the motor vehicle. The washing liquid nozzle has a nozzle body with an outer surface in which there is at least one jet outlet opening. Furthermore, at least one drainage channel for the washing liquid is arranged on the outer surface of the nozzle body, which at least partially encloses a surrounding region of the outer surface projecting directly beyond the jet outlet opening. By means of the gutter can be particularly easily avoided that washing liquid reaches an adjacent to the nozzle body arranged cover of the brake light.

Upon actuation of the washing liquid nozzle, in particular when spraying a wiping field of the rear window with the cleaning liquid, cleaning liquid droplets can form on the outer surface of the nozzle body. By means of the gutter any existing on the outer surface of the nozzle body scrubbing liquid droplets can be controlled, preferably derived under the action of gravity in the direction of the rear window. As a result, contact of the cover of the brake light with washing liquid can be largely avoided. This has a life-prolonging effect on the cover. Premature aging processes as well as aging caused by washing liquid or antifreeze additives of the cover plate formed in transparent or partially transparent plastic can be thereby far avoided and avoided.

According to a development, the gutter on a recessed into the outer surface of the nozzle body recess. In particular, the gutter is recessed in cross section in approximately U-shaped in the outer surface of the nozzle body. A cross-sectionally U-shaped groove in the nozzle body also represents a weight reduction of the nozzle body.

The nozzle body is typically designed as a plastic injection-molded component. The provision of a gutter in the form of a recess on the outer surface of the nozzle body can be particularly simple, namely by a corresponding modification of an injection molding tool respectively. The formation of the gutter in the outer surface of the nozzle body can thus be almost cost neutral. Since the outer surface of the nozzle body in the arrangement in or on the brake light is largely contact-free to the cover, even existing nozzle body can be replaced directly by the modified nozzle body described here. There are, apart from the replacement of the nozzle body no further modifications to the brake light to provide on the cover plate or in the region of a connection between the brake light and the nozzle body. This allows a particularly simple integration and practical implementation of the modified nozzle body in the improved brake light.

According to a further embodiment, the gutter encloses the surrounding area of the outer surface arcuately. The gutter is, based on a later final assembly position of the brake light on the motor vehicle, in particular formed downwardly open. The gutter may be designed, for example, semicircular or downwardly open convexly curved. The arcuate and downwardly open configuration of the gutter allows almost complete protection for the cover of the brake light, coupled with a controlled flow function for the nozzle body resulting wash liquid.

According to a further embodiment, the cross section of the gutter is chosen so large that a drainage effect can be achieved by utilizing the surface tension of the washing liquid. The cross section or the diameter of the gutter is typically between 0.5 mm and 3 mm, preferably between 1 mm and 2 mm. If, for example, a washing liquid drop present on the outer surface of the nozzle body also only partially reaches the gutter, the droplet is sucked directly into the gutter, taking advantage of a capillary effect, and is discharged or discharged from the outer surface of the nozzle body in a controlled manner.

According to a further embodiment, the gutter has a first end portion and a second end portion. First and second end portion are, relative to a mounting position of the brake light on the motor vehicle, typically spaced horizontally from each other. In an arrangement of the brake light at the rear of the motor vehicle, the first and the second end portion of the gutter are typically spaced apart in the vehicle transverse direction (y) from each other. At least one of the two end sections, preferably both end sections, are oriented downwardly or obliquely downward, so that a wash liquid drop formed in the surrounding area of the jet outlet opening reaches the drain channel at any point and is controlled downwards or downwards over one or both end sections of the drainage channel, to the underlying rear window is.

According to a further embodiment thereof, the first and the second end portion of the gutter adjoin an outer edge of the nozzle body. Typically, the first and second end portions are contiguous with one and the same outer edge of the nozzle body. The outer edge is typically an outer edge of the nozzle body facing the rear window. Relative to a final assembly position of the brake light on the motor vehicle, the outer edge may be a lower outer edge of the nozzle body. In this way, washing liquid droplets reaching into the gutter can be guided by gravity to the first and second end sections and from there to drip controlled onto an underlying rear window.

According to a development of the brake light is further provided that the outer surface of the nozzle body is arranged in a recess of a cover of the brake light. The outside of the cover can come to lie substantially flush with the outer surface of the nozzle body. But it is also conceivable that the outer surface of the nozzle body is arranged slightly set back in the recess of the cover. The geometry of the recess is precisely matched to the outer contour of the nozzle body, so that the nozzle body is integrated as possible gap-free in the brake light.

According to a further embodiment, the gutter extends along an inner edge of the recess. Typically, the gutter extends along the entire inner edge of the recess of the nozzle body. In this way, a particularly effective protection of the cover can be achieved. The entire inner edge of the recess of the cover is effectively protected by the along the inner edge extending gutter against skipping of washing liquid droplets from the outer surface of the nozzle body on the cover.

According to a further embodiment, the gutter along its groove longitudinal extent at a constant distance from the inner edge of the recess. On the one hand, this makes it possible to realize a particularly shapely design. A gutter extending along or always parallel to the inner edge of the recess is unlikely to attract attention when looking at the brake light. On the other hand, by the constant distance to the inner edge of the recess, the gutter for each area segment of the surrounding area provide a consistent drainage function of the gutter around the jet outlet opening.

According to a further embodiment, the outer edge of the nozzle body extends substantially in alignment with an outer edge of the cover. Since the first and the second end portion of the gutter adjoin the outer edge of the nozzle body or come to rest in the edge region of the nozzle body and coincides by that outer edge of the nozzle body at the same time with an outer edge of the cover, which transported by means of the gutter to the ends of the gutter Drain or drip washing liquid onto the underlying rear window without contact with the cover.

According to a further embodiment, the recess of the cover plate facing down and the rear window facing open is configured. In that regard, the recess of the cover may have an arcuate and downwardly open geometry. The inner edge of the recess may for example have a U-shaped or convex curved geometry. By the recess of the cover plate is open at the bottom and by first and second end portions of the gutter protrude to the lower outer edge of the nozzle body, the collected via the gutter or received therein washing liquid can be controlled downwards discharged. A contact with the cover of the brake light can thereby be effectively avoided or bypassed.

According to a further embodiment, the recess of the cover adjoins down to the outer edge of the cover. Further, by the outer edge of the nozzle body with the adjoining ends of the gutter extending flush with the outer edge of the cover, the end portions of the gutter are equal to the lower outer edge of the cover. If the washing liquid trickles down over the gutter, it immediately enters an area outside the cover of the brake light.

According to a further aspect, a motor vehicle is provided with a motor vehicle body and with a rear window arranged at a rear of the vehicle. On the outside of the motor vehicle, a brake light arranged above the rear window is also arranged. The brake light is typically located above the rear window or in an upper edge portion of the rear window. The jet outlet opening of the washing liquid nozzle is hereby typically directed to a wiping field of the rear window, which is swept by a rear window wiper upon activation of a cleaning function.

Brief description of the figures

Other objects, features and advantageous embodiments of the brake light are explained in the following description of an embodiment with reference to the figures. Hereby show:

1 a schematic side view of a configured as a passenger car motor vehicle,

2 a perspective view of the vehicle rear obliquely from above,

3 a section of the vehicle rear in plan view viewed from behind,

4 an enlarged view of 3 in the area of the washer fluid nozzle integrated in the brake light,

5 a cross section AA according to 4 in an arranged on the motor vehicle brake light and

6 a cross section BB according to 4 but only through the nozzle body.

Detailed description

This in 1 schematically shown motor vehicle 1 has a self-supporting motor vehicle body 2 with an interior acting as a passenger compartment 3 on. The vehicle body 2 has a rear of the vehicle 4 on which in 2 is shown partially in perspective view. At the rear of the vehicle 4 there is a hinged tailgate 7 with a frame 8th , The frame 8th has two substantially parallel side parts 9 and an upper cross member 10 on. At the cross member 10 which is above one on the frame 8th arranged rear window 6 is provided, there is a brake light 12 , Alternatively to in 2 shown illustration is also conceivable that the brake light 12 at a rear edge of a vehicle roof 5 is arranged. It is also conceivable that the brake light 12 also directly on the outside of the rear window 6 is arranged or that the brake light 12 at least in sections in a disc recess of the frame 8th the tailgate 7 protrudes.

The brake light 12 has, in addition to a light housing not shown separately and at least one or more bulbs an integrated washer fluid nozzle 16 on. This serves to load the rear window 6 with a washing liquid jet 18 like this one in the 2 to 4 is indicated schematically.

Based on a vehicle transverse direction (y) is the brake light 12 in the middle of the rear window 6 , The rear window 6 points in its lower, the brake light 12 remote area a disk hole 17 on. This serves to receive and attach a rear window wiper, which oscillates over a presently not further sketched wiping field of the rear window 6 is movable.

In the enlarged representations of the 4 to 6 is the concrete arrangement of the washing liquid nozzle 16 at the brake light 12 shown. The washing liquid nozzle 16 has a nozzle body 24 on. In the nozzle body is a jet outlet opening 20 formed, through which the liquid jet 18 on the rear window 6 can be directed. The jet outlet opening 20 is in 4 as one in an outer surface 26 of the nozzle body 24 taken in opening. Around the jet outlet 20 around there exists an imaginary surrounding area shown here in dashed lines 21 , The result of activation of the spray function of the washing liquid nozzle 16 in that surrounding area 21 accumulating washing liquid can by means of the surrounding area 21 At least partially enclosing gutter 28 controlled by the outer surface 26 of the nozzle body 24 be dissipated.

In the 4 Drainage channel shown in plan view 28 has a first end portion 34 and an opposite second end portion 36 on. The two end sections 34 . 36 open into a lower outer edge 32 of the nozzle body 24 , That lower outside edge 32 of the nozzle body 24 comes almost in alignment to an outer edge 30 , in particular to a lower outer edge 30 the cover 14 the brake light 12 to lie. At any point in the gutter 28 Washing liquid which has reached this point can be reduced in this way solely by the action of gravity downwards, to one or both of the end sections 34 . 36 the gutter 28 to get promoted.

Because the outer edge 32 the nozzle body substantially with an outer edge extending parallel thereto 30 the cover 14 coincides, in this way, for example, provided with alcoholic cleaning or antifreeze additives washing liquid largely contact-free to the cover 14 the brake light 12 stay. The to the end sections 34 . 36 promoted washing liquid can, for example, on the underlying rear window 6 drip. As in 5 further shown is the rear window 6 about a seal 11 or via an equally acting as a seal fastener on the cross member 10 the tailgate 7 attached.

In the cross-sectional view according to the 5 It should be noted that the outside surface 26 of the nozzle body 24 extends at a certain angle to the vehicle's vertical axis (z). The outer surface 26 of the nozzle body 24 as well as the plane of the cover 14 can be at about an angle of 60 ° to 120 ° to the plane of the rear window 6 extend. In the concrete and in 5 embodiment shown close the plane of the cover 14 and the rear window 6 at about a right angle. From the illustration according to 5 it turns out that the nozzle body 24 largely aligned or flush with its outer surface 26 in the cover 14 integrated or accordingly in the recess 22 is arranged.

From the illustration according to 4 also shows that the cover 14 one to the nozzle body 24 precisely fitting recess 22 having. The gutter 28 extends continuously from the first end portion 34 for lying in the same height second end portion 36 , The gutter 28 has an arcuate, approximately U-shaped downwardly open basic geometry. The gutter 28 further extends along an inner edge 38 the recess 22 the cover 14 , It points in gutter longitudinal direction or the course of the gutter 28 following a constant or constant distance to the inner edge 38 the recess 22 on.

From the cross section according to 6 also shows that the gutter 28 as one in the outer surface 26 of the nozzle body 24 recessed recess is formed. The depression or gutter 28 may have a semicircular, for example, a C-shaped or U-shaped cross-sectional profile. The cross-sectional width or the diameter of the gutter 28 may be less than 2 mm, less than 1.5 mm or less than 1 mm. The diameter may for example be between 0.5 mm and 2 mm.

Preferably, the diameter of the gutter 28 chosen so that in the surrounding area 21 accumulating washing liquid directly on a first contact with the gutter 28 taking advantage of a capillary effect and taking advantage of the surface tension of the washing liquid quasi in the gutter 28 sucked in and drained downwards due to gravity.

The illustrated embodiments show only possible embodiment of the invention to which further numerous variants are conceivable and within the scope of the invention. The exemplary embodiments shown are in no way to be construed as limiting the scope, applicability or configuration possibilities of the invention. The present The description only shows a person skilled in the art a possible implementation of an exemplary embodiment according to the invention. Thus, the most varied modifications can be made to the function and arrangement of elements described without departing from the scope of protection or its equivalents as defined by the following claims.

LIST OF REFERENCE NUMBERS

1

motor vehicle

2

Automotive body

3

inner space

4

vehicle rear

5

vehicle roof

6

rear window

7

tailgate

8th

frame

9

side panel

10

crossbeam

11

poetry

12

Stoplight

14

cover plate

16

Waschflüssigkeitsdüse

17

disc hole

18

liquid jet

20

Blast opening

21

surrounding area

22

recess

24

nozzle body

26

outer surface

28

gutter

30

outer edge

32

outer edge

34

end

36

end

38

inner edge

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely 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.

Cited patent literature

• DE 102007033170 A1 [0002]

Claims (12)

Stop lamp for a motor vehicle with at least one washing liquid nozzle ( 16 ), which in a final assembly position of the brake light ( 12 ) on the motor vehicle to a rear window ( 6 ) of the motor vehicle is aligned, wherein the washing liquid nozzle ( 16 ) a nozzle body ( 24 ) with an outer surface ( 26 ), in which at least one jet outlet opening ( 20 ) and wherein on the outer surface ( 26 ) at least one gutter ( 28 ) is arranged, which one to the jet outlet opening ( 20 ) immediately protruding surrounding area ( 21 ) of the outer surface ( 26 ) encloses at least regionally. Stop lamp according to claim 1, wherein the gutter ( 28 ) one in the outer surface ( 26 ) has recessed recess. Stop lamp according to one of the preceding claims, wherein the gutter ( 28 ) the surrounding area ( 21 ) encloses the outer surface arcuately. Stop lamp according to one of the preceding claims, wherein the gutter ( 28 ) a first end portion ( 34 ) and a second end portion ( 36 ), wherein the first and the second end portion ( 34 . 36 ) are horizontally spaced from each other based on a mounting position of the brake light on the motor vehicle. Brake lamp according to claim 4, wherein the first and the second end portion ( 34 . 36 ) of the gutter ( 28 ) to an outer edge ( 32 ) of the nozzle body ( 24 ). Stop lamp according to one of the preceding claims, wherein the outer surface ( 26 ) of the nozzle body ( 24 ) in a recess ( 22 ) a cover ( 14 ) of the brake light is arranged. Brake lamp according to claim 6, wherein the gutter ( 28 ) along an inner edge ( 38 ) of the recess ( 22 ). Stop lamp according to claim 7, wherein the gutter ( 28 ) along your groove longitudinal extent a constant distance to the inner edge ( 38 ) of the recess ( 22 ) having. Brake lamp according to one of the preceding claims 5 to 8, wherein the outer edge ( 32 ) of the nozzle body ( 24 ) substantially in alignment with an outer edge ( 30 ) of the cover ( 14 ) runs. Stop lamp according to one of the preceding claims 6 to 9, wherein the recess ( 22 ) of the cover ( 14 ) down and the rear window ( 6 ) is facing open. Brake lamp according to claim 9 and 10, wherein the recess ( 22 ) of the cover ( 14 ) down to the outer edge ( 30 ) of the cover ( 14 ) adjoins. Motor vehicle with a motor vehicle body and with a vehicle at a rear ( 4 ) arranged rear window ( 6 ) and with an adjacent to the rear window ( 6 ) arranged brake light ( 12 ) according to any one of the preceding claims.

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