DE102010036691A1 - air nozzle - Google Patents

Abstract

In an air nozzle for guiding an air flow from an air supply duct or from an air supply in heating, ventilation or air conditioning systems, especially for passenger compartments in motor vehicles, consisting of a housing (1) which can be inserted into a wall opening or fastened behind this and front air outlets (3), wherein in the interior of the housing (1) an air flow at least deflecting and at least in one direction pivotable insert (4) is provided in the insert (4) or on the back of the insert (4) narrow ribs (5 , 6, 7) or webs transverse to the longitudinal direction of the insert (1) are provided, which carry a holder (8) on which at least one luminous element (9) is supported.

Description

The invention relates to an air nozzle with the features mentioned in the preamble of claim 1.

From the DE 198 47 884 A1 an interior light with a ventilation nozzle for a motor vehicle interior is known in which a reading light and the ventilation nozzle are arranged concentrically to each other in a housing pivotally. The reading light and the ventilation nozzle are formed as nested ball sections, so that a pivoting within the housing of the nozzle is possible. The light-emitting diodes provided in the exemplary embodiment are arranged on an annular disc which is fastened to the nozzle housing, which nozzle housing is substantially cylindrical and can be connected to a supply line. With the cylinder part a spherical outer housing is firmly connected, which forms the necessary gap for receiving the ring with the light-emitting diodes and with the inner housing. In the inner housing a round nozzle insert is used, which is also independent of the connection housing pivotable.

From the DE 39 09 645 C2 is an adjusting device in a heating or ventilation system in motor vehicles, in which a displaceable actuating element has a photoconductive core, the light-conducting plates overlaps on one side, so that at the exit end side light can enter the sliding element and exit through an exit slit.

From the DE-PS-28 14 627 For example, an interior light for motor vehicles with a light source in a wall opening of the passenger compartment and with a diaphragm is known, which covers the wall opening and directs the light of the light source into a lower region of the passenger compartment. The diaphragm consists of several, superimposed and inclined towards the passenger compartment slats, which are arranged in an outlet opening in an air nozzle. On the underside facing the light source, the inclined blades are mirrored. Centrally in the air supply duct, a light source, such as an incandescent lamp, is arranged behind the arrangement of the slats. The upper side of the lamellae is preferably light-absorbing coated, so that the light is able to escape deflected into the passenger compartment exclusively via the lamella undersides. The arrangement in the air duct overheating of the bulb is avoided.

From the DE 44 28 742 A1 is a spoiler device for completing fan openings of buses, ambulances and other special vehicles known in which in the middle of the round design, a halogen lamp is arranged.

Starting from the known prior art, the invention has for its object to place a luminous element within the nozzle so that the use in the nozzle is always lit consistently in all orientations.

The object is achieved in a generic air nozzle in that in the insert or the back of the insert in the front view narrow ribs or webs, transversely to the longitudinal direction of the insert extending, are provided which support at least one holder for at least one lighting element.

The invention ensures that the light rays emanating from the light source, namely a luminous element, always remain constant within the insert, so that any pivotal movement or rotational movement of the nozzle insert can be visually detected by the relative adjustment with respect to the observer. The light rays also strike the deflector ribs within the nozzle insert. Outwardly, however, the light exits in different inclinations, according to the setting of the insert, so that it is immediately apparent to the observer whether and in which direction the nozzle is aligned. This is particularly advantageous in the dark to get an individual adjustment shown in a simple manner.

The invention is basically z. B. applicable to angular nozzles with substantially square inserts. Such nozzles are for example from the DE 20 2004 013 430 U1 . 26 to 30 , known. These are drum inserts which close the air outlet opening by turning or rotate certain fin arrangements or air deflection arrangements into the outflow opening. Similar arrangements are further from the DE 10 2005 012 538 A1 known. All these inserts have in common that they have air guide elements, whether they are arranged adjustable or rigid, and that the insert itself is pivotally mounted in the housing, so that different pivot positions can be adjusted. Now, if according to the invention, ribs or webs are provided, which may be provided in the insert or in extension to this back projecting and support holders on which lighting elements such as light emitting diodes, glow lamps or other light sources, are fastened, it can be seen that these the pivoting movements to follow the mission around the common axis.

The invention is thus also applicable to so-called spherical nozzles; these are z. B. round nozzles with spherical or annular insert, as they are also in the DE 10 2005 012 538 A1 that exemplifies here is called, are indicated. Furthermore, such spherical inserts from the DE 20 2008 008 827 U1 known. These round nozzles all have an insert, which usually has a central passageway, with or without Ableitflächen or ribs. The spherical insert consists of an annular housing, namely a spherical cutout, which is mounted in bearing shells or in an insertable frame part, which is fastened to the housing, pivotable in all directions. It is only a ring in Kalottenform necessary as a bearing ring to allow the desired deflections in all directions. In general, the inserts have an annular housing with a part-spherical surface. On this housing longitudinal ribs are provided, which hold a central channel, so that by back control, for example, the air can flow through the central channel and exit the front side or through an annular channel which surrounds the central channel. Here there are various design possibilities both in optical and fluidic terms, as well as the DE 20 2004 013 430 U1 shows.

The nozzle housing and the nozzle insert are usually made of plastic. With regard to the inventive embodiment, this offers the advantage that the ribs or webs which support or support the holder can be formed integrally with one another, and indeed also with the holder, if this is molded on. The ribs themselves can be arranged, for example, in the air passage, wherein the light source is located centrally in the channel. In this arrangement, the outer air guide ribs, if any, are not illuminated.

If outer ribs, if they are present, to be illuminated with, it is recommended that the ribs rear side, concentrically converging from outside to inside and to provide a holder for the light element at the ends. Since the light source lies on the central axis of the channel or parallel thereto, the light beam follows each pivotal movement of the insert.

The insert may also have a plurality of continuous channels in which separate light sources are arranged. However, the at least one light source can also be provided centrally behind this arrangement. For round nozzles, it goes without saying that the number of ribs is to be chosen so that the holder is stably fastened or molded with and that a high strength is given. Therefore, the ribs in round nozzles in the same grid, for example, offset by 120 ° three ribs, mounted to secure the holder secured. In the case of an elongated design of the insert, a plurality of lighting elements can be provided on the rear side as light sources in one plane, whereby a continuous illumination for the entire width of the nozzle is provided. When attached in extension to the pivotable insert, the lighting element is located substantially in the center of the insert or the entire Ausströmanordnung.

In order to achieve certain light beam guides, it is provided in a further embodiment that the light-emitting element is arranged in a transparent cone or in a light-conducting prism, which is mounted in a light bulkhead on the holder, so that the light focused specifically forward or fanned out or diffuse exit , Of course, a plurality of rib arrangements can also be provided in series, so that a series of individual luminous elements is produced in succession in the insert, as a result of which a certain depth effect can be achieved. But the ribs or webs may also be components of Luftablenkrippen, which are arranged for example in the housing of the insert and pivotable as a unit. Moreover, if such ribs consist of light-conducting plastic and the light-emitting elements are arranged and have such a light beam characteristic that a light entry into the end faces of the ribs in the region of the light source is possible, it is achieved that on the visible narrow front end sides of the ribs Light comes out. The narrow contours of the deflector ribs are clearly visible in this way. For example, a central illumination need not be provided in this case. The user clearly sees the pattern of the deflecting ribs and can also instantly visually easily detect displacement of the insert in any tilting or pivoting direction.

In order to be able to guide the light rays within the ribs, the flat sides can be coated with a protective varnish, so that there is no light emerging therefrom. If a lacquer is used here, which also allows reflection, the total light that is picked up occurs almost completely over the visible narrow sides of the deflection ribs. But the walls can also be mirrored, so that the light of the light elements can be distributed over the entire inside and emerge again on the front side.

Of course, light in a variety of shades can be used here. Accordingly, the light sources are to be designed. Light-emitting diodes, which are inexpensive in a wide range of colors, are particularly suitable for use here. It can also multicolored LEDs are used, which are connected to the color generation, for example, depending on the inclination or rotational position of the insert, with a control circuit that allows the desired color control. Also, a sensor can be provided, which measures the air passage velocity through the nozzle and generates a light depending on the measured value, which appears in a different color to signal to the user that in this color, the nozzles have a special open position.

Furthermore, the invention provides that at least one detector is provided in the nozzle, which detects the inclination of the insert and / or the air passage speed and / or the air flow through the insert and depending on a light control device causes the light intensity and / or the To change light color. Of course, the light control device can also cause it to become active only when, for example, the outside light is switched on at the vehicle. Likewise, however, an independent switching on of the light can be provided by means of a twilight switch. The color dependency or the intensity of the light can be controlled, for example, depending on the air flow rate. If there is a high air flow, an intense color can signal this. If the air flow is lower, for example, a pale color can be used for this purpose. Furthermore, however, the color and / or the intensity of the light can also be changed as a function of the air temperature through which the air nozzle flows. For example, signaling may be signaled by the central light source or by other light-indicating elements, for example via the end faces of the ribs or by additional optical fiber ends or by light elements in or on the ribs or the frame parts of the insert. For example, intense red stands for very hot air, red for hot air and blue for cold air, or any color nuances can signal the air temperature accordingly.

Using a central luminous element in the background or by using different luminous elements, which are also individually controllable, the invention is provided in a further embodiment, that at least in a passage channel, a fluorescent polycarbonate film is introduced at least partially. This is a fluorescent film, also known as LISA film, which is colored with fluorescent dyes and collects and conducts light. The film converts the incident light into light of longer wavelengths. The majority of the light is reflected by the laws of reflection within the film (total reflection) and only emerges again through the edges. Such LISA films are available in a wide variety of colors. From the foil stampings can be made. The film can be used as a thermal film, which is trimmed, for example, after spraying, so that the flanks form the luminous edges. The film can also be printed on. Also, the film can be embossed and writings can be applied by hot stamping. The film can also be glued and welded. By the introduction of the film into the insert, at least in the passageway but also on or as a rib part, it is possible to achieve special optical effects or to achieve edge illumination, which stand out significantly and can significantly shape the visual appearance. The film itself is held on the inner wall of, for example, a passageway by clipping, gluing or by clamping, which are either already formed on the body itself or are used in a ring. The film can also be introduced by injection molding in the manufacturing process. The film is also suitable to be used in channels that are incorporated as lighting channels in the ribs. Here they can be pressed in, clamped in or also injected, so that the frontal spot illumination takes place. Also, the LISA film can form ribs that are inserted into the insert.

In order to also enable punctual illumination and / or optical signaling of various states, moreover, bores for the receptacles of ends of optical fibers can be provided in the ribs and / or the ribs of a center star in a passageway and / or in the front frame of the insert, the other Ends are placed so that they absorb light from a light element. Instead of optical fibers or instead of the use of strips from the LISA film but lighting elements can be used in the holes directly, the connecting cables are laid back, for example, in channels of the ribs and are led out back over the housing by looping for unimpeded pivoting of the insert or are contacted by means of plug contacts thereto, in order to be able to be controlled via the light control device, which may be placed discontinuously. The feeding of light can also be done via a central prism in the optical fibers. Also, in the center of the center star be used a polished gem, which is preferably backlit. It is crucial that a point-like light emission is ensured from the holes. If the light is coupled close to the center, there are hardly any relative movements on the sliding fibers, which can be made of plastic or glass. The optical fibers can also be used as short sections in the holes when the holes can be detected by the central light source. For example, if the fin material is a black plastic and / or the narrow visible sides are metallized or painted, the individual points of light emerge clearly from the bores.

The indicated advantageous embodiments and further will be apparent from the dependent subclaims.

The invention will be explained in the following with reference to the embodiments illustrated in the drawings.

In the drawings show:

1 a rear view of an air nozzle according to the invention,

2 a section along the in 1 Plotted center line through the air nozzle,

3 a perspective view of an air nozzle according to 1 and 2 .

4 in a perspective view the in 1 to 3 illustrated nozzle with holes in the ribs of a center star,

5 a longitudinal section through the air nozzle after 4 with a marked optical fiber,

6 a longitudinal section with an inserted LISA film in the central passageway and

7 an example of the light introduction into the ribs of the nozzle made of photoconductive material.

According to the embodiment 1 and 2 it is a round nozzle with a ball insert known type. The housing 1 has front side an infected front frame 16 on, for example, is used in a hole in a dashboard of a motor vehicle.

The necessary retaining means for retreatment are not shown here. The use 3 has a rib arrangement of deflection ribs 4 around an air duct 14 on, which may be provided on the outside with a jacket or as a single deflection ribs extending in the longitudinal direction, radially extending, may be provided. These ribs 4 are in use 3 firmly anchored and externally annular. An offset by 180 ° arranged rib pair 4 is with trunnion 17 provided in the rotatably mounted ring housing 18 of the insert 3 are pivotally mounted, so that on the one hand, the entire arrangement on the journals 17 can be pivoted, on the other hand, but also within the nozzle housing 1 or the space of the front frame 16 and the nozzle housing 1 is formed, can be rotated, so that any adjustment of the flow of the nozzle insert 3 is possible.

Centric indicates the use 3 an air passage 14 on, the front side a center star 13 has, which also allows an air discharge. At the intersection is a holder 19 provided, in which a lighting element 20 or a decorative part can be used ( 3 ).

How out 1 can be seen, the nozzle on the movable insert part 3 ribs 5 . 6 . 7 on, which are arranged offset by 120 ° and a holder 8th wear. On this holder 8th is the light source, namely a luminous element 9 , For example, a light-emitting diode attached. This light element 9 emits its light towards the front. In order to achieve a bundling of the light on the one hand and on the other hand also to achieve an optical enhancement and a certain appearance of the insert, the light-emitting element is a light source in a transparent cone 12 stored, which in turn in a light bulkhead 15 on the holder 8th is attached. It can be seen that the exiting light through the air passage 14 also exit to the front. With appropriate training of the ribs 5 can also be achieved by using the storage ribs for the lighting element 9 the light in these longitudinal ribs 5 is introduced, leaving it front side from the end faces of the ribs 4 can emerge.

By pivoting the insert 3 the light source or the front and / or the rear lighting elements are automatically pivoted so that there is always a uniform light emission. It is thus visually signalable in which position the nozzle insert is located. If, moreover, color signals are to be made possible, the light source can be a multicolored light source whose individual light generators can be controlled separately so that any colored light can be generated. If there is a sensor in the nozzle that can detect the air flow or the inclination, this can also be indicated by changing the light color.

One of the ribs 5 . 6 . 7 can also have a cable channel 10 in which a cable for powering the lighting element 9 can be inserted. The housing 1 has a connection on the back 2 for an air supply line.

In the 4 and 5 an embodiment is shown, in which the punctual light display or additional light display holes 22 For example, in the ribs of the middle star 13 are introduced. These holes 22 are introduced longitudinally, but can also be introduced in an inclined position. Out 5 It can be seen that in each of these holes one or more optical fibers 23 ends, the other ends of which in front of the light scattering cone 12 of lighting element 9 are arranged that this light is introduced. The end 24 So it's right in front of the cone 12 placed.

But it can also be provided a separate light emitting diode, their light to the optical fiber 23 emits. Obviously this occurs through the optical fiber 23 directed light from the hole 22 out, so that this special signaling or additional signaling, assigned to functions, temperatures of the air flow and the like, can be made. Instead of an optical fiber 23 but can also be provided a cable connection and instead of in the hole 22 Endenden Lichtleitfaserendes can also be used a light emitting diode, which performs such signaling. In the same way but also in the front frame 24 of the insert 3 be used such agents. Such lighting displays can also be in the front frame 16 , the case 1 is attached, be provided in addition.

In 6 is another way to change the visual appearance specified. In the air passageway 14 is a so-called LISA film 21 used, a fluorescent polycarbonate film containing fluorescent dyes and converts incident light into longer wavelengths. The majority of this light is reflected by the laws of reflection within the film and only emerges again through the edges. This creates a diffused light inside, when fully equipped with the LISA film, primarily from the central rear light source 9 is determined. In addition, an annular light strip appears on the front side at the exit edges and produces a special optical image, whereby not only the functional states of the nozzle itself can be signaled, but also clearly the tilted position is visible. The feeding of the light takes place in the embodiment in 6 via the rear end surfaces via light-guiding webs, that of the lighting element 9 be lit up.

In 7 is shown a variant in which the ribs 4 and the air duct 14 consist of light-conducting plastic, so that hereby an illumination of the front narrow sides is given and optionally a diffused light emission from the jacket wall of the air duct 14 and the pages, if left untreated. The light is fed in through the rear light bulkhead 15 , which consists of light-collecting plastic and is formed basket-shaped, to feed the light on the rear end faces, without significantly obstructing the air flow.

LIST OF REFERENCE NUMBERS

1

casing

2

connection

3

commitment

4

rib

5

rib

6

rib

7

rib

8th

holder

9

light element

10

Cabel Canal

11

electric wire

12

cone

13

star center

14

air duct

15

light Schott

16

front frame

17

ribs

18

ring case

19

holder

20

light element

21

polycarbonate film

22

drilling

23

optical fiber

24

Front frame (insert)

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 19847884 A1 [0002]
• DE 3909645 C2 [0003]
• DE 2814627 [0004]
• DE 4428742 A1 [0005]
• DE 202004013430 U1 [0009, 0010]
• DE 102005012538 A1 [0009, 0010]
• DE 202008008827 U1 [0010]

Claims (20)

Air nozzle for guiding an air flow from an air supply duct or from an air supply line in heating, ventilation or air conditioning systems, in particular for passenger compartments in motor vehicles, consisting of a housing ( 1 ) which can be inserted into or behind a wall opening and which has a rear connection ( 2 ) for an air supply duct or an air supply duct as well as a front air outflow opening ( 3 ), wherein in the interior of the housing ( 1 ) an air flow at least deflecting and at least in one direction pivotable use ( 4 ), characterized in that in the insert ( 4 ) or on the back of the insert ( 4 ) in the front view narrow ribs ( 5 . 6 . 7 ) or webs, transversely to the longitudinal direction of the insert ( 1 ) are provided, the one holder ( 8th ) on at least one light element ( 9 ). Air nozzle according to claim 1, characterized in that the insert ( 1 ) as a pivotable and / or spherical rotating and pivoting insert ( 1 ) and in an angular or round housing ( 1 ) is stored. Air nozzle according to claim 2, characterized in that in the case of a nozzle with a round housing ( 1 ) at least two, on the circumference opposite, or more, evenly distributed on the circumference, arranged ribs ( 5 . 6 . 7 ) are provided, wherein at least one of the ribs a storage channel ( 10 ) for receiving a connection cable ( 11 ) for the power supply of the lighting element ( 9 ) having. Air nozzle according to one of the preceding claims, characterized in that the luminous element ( 9 ) essentially in the center of the mission ( 4 ) is placed. Air nozzle according to one of the preceding claims, characterized in that the luminous element ( 9 ) in a transparent cone ( 12 ) or in a light-conducting prism, which is in a Lichtschott ( 15 ) on the holder ( 8th ) is attached. Air nozzle according to claim 1 or 2, characterized in that on the center axis plane of a rectangular insert ( 1 ) in this or at the back central at least one luminous element ( 9 ) is provided. Air nozzle according to claim 6, characterized in that on the middle axis plane of the insert ( 1 ) several light elements ( 9 ) are arranged distributed in series. Air nozzle according to claim 1, characterized in that the air nozzle at least one passage channel ( 14 ), which deflects the air flow by pivoting in different directions, and that with respect to this channel ( 14 ), on the mission ( 1 ) Ribs ( 5 . 6 . 7 ) to the central orientation of the light source forming a light-emitting element ( 9 ) are provided. Air nozzle according to claim 1 or 8, characterized in that the insert ( 1 ) consists of plastic and the ribs ( 5 . 6 . 7 ) are integrally formed. Air nozzle according to claim 1 or 3, characterized in that the ribs ( 5 . 6 . 7 ) Are components of air deflection ribs or form those which are annular around a central channel ( 14 ) are arranged. Air nozzle according to claim 1, 3 or 10, characterized in that the ribs ( 5 . 6 . 7 ) consist of light-conducting plastic and the light elements ( 9 ) are arranged and have such a light beam characteristic that a light entry into the end faces of the ribs ( 5 . 6 . 7 ) is given in the region of the holder and the visible narrow front end faces of the ribs ( 5 . 6 . 7 ) illuminates or emerges from this light. Air nozzle according to claim 1, 3, 10 or 11, characterized in that the side walls of the ribs have reflective coatings which allow the light to emerge reflected forward. Air nozzle according to claim 1 or 12, characterized in that when using translucent plastic, the surfaces are covered by lacquer, from which no light should escape. Air nozzle according to claim 8, characterized in that at least one through-channel ( 14 ) with a fluorescent polycarbonate film ( 21 ) is at least partially equipped. Air nozzle according to claim 14, characterized in that the polycarbonate film ( 21 ) is introduced by film injection molding (FIM technology), clipped or held by clamping. Air nozzle according to claim 1, characterized in that in the ribs ( 4 ) and / or the ribs of the middle star ( 13 ) and / or a front frame ( 24 ) of the mission ( 3 ) Drilling ( 22 ) for receiving ends of optical fibers ( 23 ) whose other ends ( 24 ) are placed so that they light a luminous element ( 9 ) and / or of lighting elements. Air nozzle according to claim 1, characterized in that as a luminous element ( 9 ) one or more LEDs are used. Air nozzle according to claim 17, characterized in that the LEDs are multi-colored LEDs and the colored cells are individually controllable. Air nozzle according to claim 17 and 18, characterized in that at least one detector is provided which determines the inclination and / or the air passage speed of the air and / or the air flow through the insert ( 1 ) and, depending on this and / or on the air temperature, carries out a light control and / or light color control. Air nozzle according to claim 1, characterized in that on the housing ( 1 ) a front frame ( 16 ) which can be fastened over the insert ( 3 ) or with the use ( 3 ) on the housing ( 1 ) can be pressed on the front.

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