DE102020127363A1 - vehicle light - Google Patents

Abstract

A vehicle lamp with at least a first and a second partial emitter body, which are in a spatial relationship and are each aligned in a first emission direction and a second emission direction, with a common housing for the two emitter partial bodies and with a holder for attaching the common housing to a Vehicle frame, wherein the spatial connection of the two emitting parts is represented by the common housing, wherein the common housing has a height, a length arranged perpendicular to the height and a depth arranged perpendicular to the height and perpendicular to the length with one to the two emission directions having parallel directional components and each of the two dividing bodies perpendicular to its direction of emission has a peripheral emitting surface edge, which can generate maximum attention, it is advantageous if the compactly designed dividing body offers a calm pole, while the narrow and long diffuser body has an aggressive effect, which, in combination with a housing shape that emphasizes these contrasts, attracts attention.

Description

The invention relates to a vehicle lamp with at least a first and a second partial emitter body, which are spatially related and are each aligned in a first direction of emission and a second direction of emission, with a common housing for the two partial emitter bodies and with a holder for attaching the common housing on a vehicle frame, the spatial connection of the two emitting parts being represented by the common housing, the common housing having a height, a length arranged perpendicularly to the height and a depth arranged perpendicularly to the height and perpendicularly to the length with a has a directional component parallel to both emission directions and wherein each of the two partial emission bodies has a circumferential emission surface edge perpendicular to its emission direction.

From the DE 103 51 048 A1 For example, built-in vehicle headlights are known which have a reflector with an elongate light decoupling element adjacent thereto. Two emitting parts, one round and one rectangular, can be defined here, with the corresponding built-in vehicle headlight not being fastened to the vehicle via a holder of a housing but being built into it. Also the DE 10 2018 213 317 A1 discloses a lamp to be installed in a vehicle with two emitter bodies.

In the prior art, in particular from the DE 10 2010 056 311 A1 , Various types of vehicle lighting are known. How to distinguish between headlights and vehicle lights. Headlights are only arranged in the front area of a vehicle. In addition to road safety by making the vehicle visible to other road users, they are used in particular to illuminate the road ahead of the vehicle in the form of low beam, fog light, high beam or any other suitable light distribution in order to improve the driver's view. Headlights can have at least one incandescent lamp, gas discharge lamp or semiconductor light source, for example a light-emitting diode, as the light source. It is possible for a headlight to be able to generate different light distributions by means of one or more light modules arranged in it. Headlights can work according to a reflection principle, with light emitted by a light source being reflected by a reflector onto the roadway in front of the vehicle equipped with the headlight in order to produce a desired light distribution. Alternatively, headlights can also work according to a projection principle, whereby the light bundled by a primary optic, for example a reflector or an attachment optic with totally reflecting properties, is projected through a secondary optic, for example a projection lens, to generate the desired light distribution onto the road in front of the vehicle will.

Vehicle lights, on the other hand, are mainly used for road safety by making the vehicle visible to other road users. For example, front lights in the front area of the vehicle are used as position lights, flashing lights or daytime running lights, and rear lights in the rear area of the vehicle are used, for example, as brake lights, rear lights, flashing lights, position lights or reversing lights. Lights arranged on the side of the vehicle serve, for example, as side marker lights. The front lights can be integrated into the headlight or be designed as a separate light on the motor vehicle. Luminaires can fulfill one or more lighting functions. Luminaires usually have incandescent lamps or semiconductor light sources, for example light-emitting diodes, as light sources.

White light sources are required to implement the daytime running light, position light and main beam in the front area of the vehicle and to implement the reversing light in the rear area of the vehicle. The flashing light in the front or rear area is realized with yellow, orange or amber light sources or with appropriately colored color filters. The brake light and rear light in the rear area are realized by red light sources or by appropriately colored color filters.

It is the object of the present invention to provide a vehicle light of the generic type that can draw maximum attention.

The invention is based on the basic knowledge that the compactly designed emitter body offers a calm pole, while the narrow and long emitter body acts aggressively, which, in combination with a housing shape that emphasizes these contrasts, increases attention.

In order to attract maximum attention, implementing this basic knowledge, a vehicle lamp with at least a first and a second partial emitter body, which are in a spatial relationship and are each aligned in a first direction of emission and a second direction of emission, can be combined with a common housing for the two partial emitter bodies and with a holder for attaching the common housing to a vehicle frame, in which the spatial relationship of the two radiation partial body is represented by the common housing, the common housing has a height, a length arranged perpendicular to the height and a depth arranged perpendicular to the height and perpendicular to the length with a directional component parallel to the two emission directions and each of the two partial emission bodies perpendicular has a peripheral emission surface edge to its emission direction, characterized in that the partial emission body is compact perpendicular to the first emission direction and the second partial emission body perpendicular to the second emission direction is narrow and long along the length and the common housing is designed opposite to the respective emission direction on one of the two See Abstrahlteilkörper a the respective radiating surface edge perpendicular to its course superior, the course of the respective radiating surface edge starting from a maximum height of the common housing in a wegwei from the holder send direction with a changing strength following housing protrusion. A housing shape designed in this way then, in combination with the compact first partial emitter body and the narrow and long second partial emitter body, accordingly increases the attention of a viewer and in this way technically implements the basic knowledge.

A "vehicle light" is preferably a device in which a light source is permanently installed or in which a light source can be installed or used and which serves to make the vehicle visible to other road users. These include in particular position lights, rear lights, turn signals, daytime running lights and brake lights and combinations thereof.

A “bulb” can be understood to mean any electrical equipment and/or any electrical consumer that is set up to generate light. In particular, these include incandescent lamps or semiconductor light sources.

A “radiating surface” is understood to mean, in particular, a surface of a vehicle light from which the light emitted by the vehicle light is emitted. A “radiating body” is then correspondingly understood to mean a body which has the radiating surface. In particular, an emitter can be made of a material that is essentially transparent to light. Depending on the specific requirements, the radiating surface can be curved or flat or even, depending on the requirements, in particular for lateral visibility or visibility from different heights. In particular, for corresponding reasons, the radiating surface can be arranged or aligned inclined in relation to the direction of travel of the vehicle or in relation to the horizon or in relation to the horizontal.

In particular, the emitter can have optical elements in order to suitably shape, direct, reflect or deflect the light to be emitted. On the other hand, it goes without saying that other optical elements can also be provided in addition or instead, in particular inside the housing, possibly even outside it, in order to suitably shape, direct, reflect or deflect the light to be emitted.

Correspondingly, a “partial emitting body” can be understood as merely a part of an emitting body if this is formed, for example, from a plurality of, in particular from at least two, partial emitting bodies. Different functionalities of the same are preferably assigned to different partial emission bodies of a vehicle light, but this does not necessarily have to be the case. Depending on the presence of partial emission bodies, partial emission surfaces can then also be defined for a vehicle light, which together form the emission surface and can each be represented by an associated partial emission body.

One illuminant or also several illuminants can radiate through the emitter or emitter.

A “radiation direction” is preferably understood to be the direction in which the highest light intensity is emitted by the vehicle light. Inside the vehicle light, the direction of emission can be defined as the vectorial sum of all light paths, which—naturally—can still experience changes in direction during their passage from the illuminant(s) to the emission surface. It goes without saying that when partial emitting bodies or partial emitting surfaces are provided, respectively associated directions of emission of the respective partial emitting bodies or partial emitting surfaces can be provided, which in particular can deviate from one another.

Since the emitter can in particular comprise a first and a second emitter part, each of the two emitter parts can also be assigned its own emission direction, so that the vehicle lamp can comprise two or more emission directions. Depending on the specific configuration, the emission directions can also be aligned parallel to one another.

The emission directions preferably have at least a predominant component in the direction of travel for vehicle lights that shine in the direction of travel or opposite to the direction of travel for vehicle lights that shine in the reverse direction if the vehicle lights are attached to a vehicle or its vehicle frame. In the case of side lights, on the other hand, it is correspondingly advantageous if a predominant component of the emission direction of the corresponding vehicle light is directed in a corresponding lateral direction. Alternatively or cumulatively to this, it is advantageous if the emission directions are each aligned horizontally in order to ensure good visibility in as many driving situations as possible.

Cumulatively or alternatively to this, a vehicle light with at least one first and one second partial emitter body, which are spatially related and are each aligned in a first direction of emission and a second direction of emission, with a common housing for the two partial emitter bodies and with a bracket for attaching of the common housing on a vehicle frame, in which the spatial connection of the two emitting parts is represented by the common housing, in which the common housing has a height, a length arranged perpendicularly to the height and a depth arranged perpendicularly to the height and perpendicularly to the length with a directional component parallel to the two directions of emission and in which each of the two partial emitting bodies has a peripheral emitting surface edge perpendicular to its direction of emission, also characterized in that the partial emitting body is perpendicular to the first abst ray direction compact and the second emitter body perpendicular to the second emitter direction along the length are narrow and long and the common housing, starting from a maximum height of the common housing already explained above, in the form of a wing and/or an aerodynamic cross-section and/or designed on a wing to attract maximum attention. The housing shapes explained above allow the compact first and the narrow and long second emitter parts to be arranged in the housing in such a way that the latter emphasizes the effect of the emitter parts and in this way implements the basic knowledge and maximizes attention.

In addition, in addition to maximizing the task, the design mentioned above also ensures a large surface area, which promotes cooling of the housing and thus of the entire vehicle light.

In the present context, the term "wing" refers to a basic form that originates essentially from the animal world but also from aircraft technology, which is intended on the one hand to give the ability to fly and on the other hand, generally seen against the direction of flight, starting from a compact body and becoming long and narrow in one Longitudinal direction extends.

In the present context, a “wing” can also be understood to mean a wing. This is preferably known as a component of a vehicle whose main task is to generate dynamic lift. The function of the hydrofoil can be to generate a sufficiently large force perpendicular to the direction of flow by influencing the flow around it. This force is the lift that keeps an airplane in the air or lifts a hydrofoil out of the water. Such an object is not intended for a vehicle lamp according to the invention, but a corresponding shape of the housing of the vehicle lamp can be used.

The mechanism of action of the wings is part of the induced air resistance: it draws the energy required for this from the flow system providing lift in the form of flow resistance. In principle, this part of the induced air resistance cannot be eliminated, since it physically takes into account the law of conservation of energy and momentum.

Another form of induced air resistance is mainly caused by edge vortices at the wing tips: here a pressure equalization occurs between overpressure under the wing and underpressure over the wing. This creates an edge vortex around the longitudinal axis of the aircraft at each wing tip, the kinetic energy of which is withdrawn from the flow system that generates lift and is thus lost unused. The tip vortices can be reduced by a high aspect ratio, which means the ratio of the wingspan to the average flight depth, but in principle cannot be completely eliminated with a number of wings.

It has been shown that a cross-section corresponding to a wing but also the edge vortices and thus also a corresponding shape of the housing in a longitudinal section perpendicular to the direction of emission can influence the cooling of the vehicle lamp in addition to a corresponding maximization of attention, so that a corresponding design as a wing or Wing or aerodynamic cross-section favors cooling of the vehicle light.

"Aerodynamics" is preferably understood as a part of fluid dynamics and describes the behavior of bodies in air or compressible gases, with the latter one also speaks of gas dynamics. The second area of fluid dynamics, hydrodynamics, on the other hand, deals with liquids. Aerodynamics describes the forces, such as dynamic lift, that make it possible, for example, for airplanes to fly or sailing ships to sail through water with the help of the wind. Many other areas of technology, such as civil engineering or vehicle construction, have to deal with aerodynamics. Thus, the "aerodynamic cross-section" expresses a cross-section with particular aerodynamic properties that comes from the field of aerodynamics.

The basic shapes explained above are preferably arranged in such a way that the radiation directions coincide at least in one component, preferably even completely, with the direction of flight of the corresponding body or with a direction opposite to the direction of flow around the corresponding body.

In order to generate maximum attention, a vehicle lamp with at least a first and a second partial emission body, which are spatially related and are each aligned in a first emission direction and a second emission direction, can cumulatively or alternatively also have a common housing for the two Radiating sub-body and with a holder for attaching the common housing to a vehicle frame, the spatial relationship of the two radiating sub-bodies being represented by the common housing, the common housing having a height, a length arranged perpendicularly to the height and a length perpendicular to the height as well has a depth arranged perpendicular to the length with a directional component parallel to the two emission directions and wherein each of the two partial emitting bodies has a peripheral emitting surface edge perpendicular to its emitting direction, characterized in that the first partial emitting body r perpendicular to the first direction of emission are compact and the second emitter body perpendicular to the second direction of emission are narrow and long along the length and the common housing along at least 90% of the length of the common housing, at least starting from one or the maximum height of the common housing in one of the bracket pioneering direction, each having a greater depth than height. In combination with the compact first emitter part and the narrow and long second emitter part, a housing designed in this way can also draw the viewer's attention to the emitter part and thus as a whole and in this way technically implement the basic knowledge.

It can be assumed that the relatively great depth also leaves sufficient installation space, although the housing, particularly in the area of the long and narrow emitter body, can be made correspondingly narrow in order to draw the viewer's attention to the emitter body . The relatively great depth also enables the housing to have a relatively large surface area, which can promote cooling of the housing or the vehicle light.

The compactly designed radiating part body can offer a stationary pole in each case. The narrow and long radiating part body can then appear aggressive, which in combination increases the attention. In particular, due to the relatively large depth of the common housing, its design as a wing, with an aerodynamic cross section or as a wing and/or the design of the housing projection explained above, attention can then be maximized in accordance with the basic idea explained above. In this context, it appears to be particularly advantageous if the compact first partial emitter body is arranged in an area of the housing, the wing or the wing that has a high height, while the narrow and long second partial emitter body is arranged in an area of the housing that is opposite has a lower height.

The height, depth and length of the housing can be defined in particular on the basis of the narrow and long radiating part body to be formed along the length. The depth is then perpendicular to the length with a directional component to the respective emission direction.

It goes without saying that the depth of the housing does not necessarily have to be aligned parallel to the respective emission direction, as long as a directional component of the depth can be found parallel to the respective emission direction. A predominant directional component is preferably aligned parallel to the respective emission direction, so that the depth does not deviate from the respective emission direction by more than 45°.

The height is then perpendicular to the length and perpendicular to the depth.

Depending on the specific implementation, the housing, for example if it is the shape of a wing, have lengths, depths and heights that are not found on planes but on curved but correspondingly linearly independent surfaces, these surfaces possibly even varying their curvature in space. Such configurations can be found, for example, when the narrow and long second partial emitting body has a curved or kinked emitting surface, which may be desirable for design reasons. Based on the then correspondingly kinked or curved length and the radiation direction, however, depths and heights can be defined in each case linearly independently of the length.

In concrete implementation of the length, it appears advantageous, for example, to first define the length by a plane intersecting the emission surface of the second emitter body along its narrow and long alignment in the middle perpendicular thereto parallel to the local emission directions, and then to define this plane in the direction of the second emitter body and its radiating surface and, if necessary, to extrapolate up to the holder. Based on this, this plane can then be extrapolated in the direction of the depth of the housing, in which case the center of the height of the housing preferably serves as the plane used to define the length. As a rule, however, the length, depth and height of the housing will differ based on the general geometric alignment of the same in relation to the narrow and long second emitter body and its emitting surface or in relation to the bracket and the arrangement of the narrow and long second emitter body and whose radiating surface to this holder result in accordance with the known understandings of height, length and depth.

A cross-section is then preferably defined accordingly in a plane defined by the height and depth. Depending on the specific situation, however, a cross section can also be determined or defined in a plane defined by the direction of travel of the corresponding vehicle or by the radiation directions on the one hand and by the height. In the light of the above freedoms with regard to matching the emission direction and depth, there are then corresponding freedoms.

In particular, it is advantageous if the direction of emission and the depth deviate from each other by less than 20°, in particular less than 10°, preferably less than 7°.

Depending on the installation position, the vehicle light can then be aligned horizontally or vertically in or opposite to the direction of travel. In the case of side lights, an alignment perpendicular to the direction of travel can also be provided. Depending on the installation position, the length can then be arranged horizontally and the height vertically, or vice versa. In particular, when the second partial emitting body is used as a flashing light, it makes sense to align the length essentially horizontally. The direction of emission and therefore the depth of the housing is preferably always aligned essentially horizontally in order to ensure visibility over a large distance.

In particular, it has proven to be advantageous if the compact first partial emitting body is arranged in a higher area of the housing and the narrow and long second partial emitting body is arranged in a lower area of the housing in terms of height. In this way, the housing particularly emphasizes the different characteristics of the respective radiating part bodies.

It has also proven to be advantageous to arrange the narrow and long second partial emitting body away from the vehicle or from the holder and to arrange the compact first partial emitting body closer to the vehicle or the holder. In particular, when the second emitter body is used as a blinker, such an arrangement emphasizes its functionality. On the other hand, the characteristics of the two emitter parts and the corresponding housing also come into their own in this arrangement, independently of the functionality.

In the present case, a “housing” can be understood to mean a solid shell of the vehicle light, which protectively surrounds a light source and any electrical or electronic or other functional assemblies that may be provided and protects this or these from the environment. In particular, in the present context, the housing can protect the illuminant or illuminants of the vehicle light from the effects of the weather, mechanical influences and the like. It goes without saying that other assemblies, such as electrical components, but also optically effective assemblies, heat dissipation and the like can be provided in the housing. The housing is preferably closed by the radiating body or bodies, in which case it can optionally also have further openings, for example cable openings, through a holder or the like. In a particularly preferred embodiment, the housing protects the radiating body or bodies, possibly together with a holder within the housing, from the effects of the weather and unintentional mechanical impairments, so that in particular other vehicles Parts, such as, for example and in particular, its body, do not have to be provided for protection or additional protection.

The common housing is preferably designed in one piece, which results in a structurally simple implementation.

The term "in one piece" preferably describes the formation of a specific component, such as a housing, in one piece. Advantageously, the component is produced or primary formed directly during manufacture or manufacture or production in a single component or in one piece, or is produced from one piece by machining or the like. Accordingly, a non-integral object describes, for example, an object that has been joined, formed together, and/or assembled in some other way from at least two objects. An object can preferably be formed in one piece, for example by rapid prototyping methods or by casting.

In particular, the housing can include a holder with which it, and thus also the vehicle light, can be attached to a vehicle. Accordingly, a “mount” is preferably understood to be any device that is set up to mechanically connect the or a housing of a vehicle light or the vehicle light directly or indirectly to the vehicle. If necessary, supply lines can be led into the housing through or to the holder.

It is advantageous if the common housing is attached or attachable to a vehicle frame by means of a holding arm of the holder. This increases the aggressive effect of the narrow and long radiator. In addition, the holding arm can also be designed in one piece with the housing and is then part of the housing.

A "retaining arm" can preferably be understood as any mechanical and arm-like connection of the housing of the vehicle light to the vehicle, whereby this can ultimately be designed differently. As a rule, a holding arm will extend through an area which has a smaller cross section than the housing or a symmetrical, ie for example elliptical, circular, rectangular or square cross section. Depending on the specific implementation, retaining arms can be made very short or even extend over more than the length of the remaining housing of the vehicle light.

In particular in the area of the holding arm, the length of the housing can be defined parallel to the extension of the holding arm, which then, starting from the holding arm and taking into account the radiating surfaces, also defines the height, essentially parallel to the radiating surface or surfaces, and the depth, in Substantially perpendicular to the radiating surface or the radiating surfaces or with a component parallel to the respective radiating directions.

Particularly in combination with a holding arm, attention to a vehicle light can be maximized if the compact first partial emitter body is arranged closer to the holding arm, at least on average, preferably entirely, than the narrow and long second partial emitter body.

Also, a particularly stable arrangement cannot be achieved if the holding arm merges into the housing, in particular without a kink or with only a smooth transition.

In particular, the load-bearing part of vehicles can be referred to as the “vehicle frame”. Load-bearing parts have the function of supporting the drive, the body and the payload and of stabilizing them against external forces. In particular, the chassis can be part of the vehicle frame or essentially represent it. In vehicles with a self-supporting body, the body is the supporting element and thus at the same time the vehicle frame or part of the vehicle frame. The wheel suspension, all essential drive elements such as transmission and engine, possibly the body or cargo containers and trailer hitches can be attached to the chassis. Chassis with built-in running gear and drive train can also be roadworthy without a body.

In order to be able to provide the arrangement of the vehicle light on a vehicle in different ways, the partial emitter bodies can be inserted into the common housing.

It is advantageous if the common housing has a streamlined cross section in each case in sectional planes oriented parallel to the depth and to the height through the housing. As a result, the vehicle light provides as little air resistance as possible and a low level of noise, for example from the wind. In particular, the resulting laminar flow apparently also enables good heat dissipation.

A "streamline shape" can preferably be understood as the ideal shape of a body, which is characterized by the lowest possible flow resistance to the surrounding medium, mostly air or water. A quantitative measure of the streamlining is, for example, the drag coefficient C _w . In a first approximation, this depends only on the shape and not on the size of the body in flow. The lower its C _w value, the more streamlined the body. Streamline shape can be qualitatively read from a smooth, largely turbulence-free course of the streamlines, which can be made visible in numerical simulations or in wind tunnel experiments.

Two straight lines are given by a firmly defined depth direction and by a firmly defined height direction. A plane can be determined mathematically precisely by two straight lines. A section plane mentioned above can thus, as described above, be clearly defined by the depth and the height.

The common housing can also be designed in the form of a wing, starting from the mount, in order to provide good cooling of the vehicle lamp. In particular, the arrangement also makes it possible, as already indicated above, to further maximize attention, particularly when a holding arm is used. In order to achieve the same advantage, cumulatively or as an alternative to this, the common housing can each have a greater depth than height, starting from the holder along the length of the common housing. The latter makes it possible in particular for the radiation bodies to come into their own in the housing.

Cumulatively or alternatively, the common housing can also taper from the maximum height of the common housing towards the holder, viewed against at least one of the two emission directions, in order to also be able to provide good cooling of the vehicle light, especially when a holding arm is used comes.

It goes without saying that the compact first partial emitting body preferably has an associated emitting surface which is correspondingly compact, while the narrow and long second partial emitting body preferably has an associated partial emitting surface which is correspondingly narrow and long.

If the housing is designed in the form of a wing, the compact first partial emitting body or its associated correspondingly compact emitting surface can be arranged in a thicker area of the wing, in particular, for example, also at its root or attachment, while the narrow and long second partial emitting body or its associated correspondingly narrow and long radiating surface can be arranged in particular in a long and narrow area of the wing. This then requires a design of the vehicle light that maximizes attention.

In the area of the compact first partial emitter body, the ratio between depth and height can be significantly smaller, if necessary, than in the area of the long and narrow second partial emitter body, which can also result in a design of the vehicle light that maximizes attention.

Advantageously, along at least 90% of the length of the common housing, at least starting from one or the maximum height of the common housing in a direction away from the bracket, the depth of the common housing is at least twice the height of the common housing, which also results in a good cooling of the vehicle light can be achieved.

A front and/or rear side of the common housing preferably has a rectilinear area, with the front and rear sides particularly preferably each having a rectilinear area and the two rectilinear areas approaching each other along the length, starting from the holder. In this way, the vehicle lamp can be designed as aerodynamically as possible with the advantages already mentioned above.

In particular, the area of the housing that goes beyond the area of the connection between the housing and the respective radiating surface or protrudes or protrudes in the direction of the depth can be defined under the “housing overhang”. When looking at the radiating surface in the radiating direction or parallel to the depth at the height of the middle of the respective radiating surface, the housing projection is in particular the housing areas, which can then still be seen in the direction of the height above or below the radiating part body or the radiating surface.

In particular, the housing overhang in the cross section perpendicular to the length can be smaller than the height of the associated emitting part body in this cross section in order to maximize attention, since this allows a relatively small housing overhang to be realized in height, so that the emitting part body and in particular its associated emitting surface are clearly visible come to the fore. With a suitable design a streamlined design or good cooling of the vehicle lamp may also be achieved as a result.

Cumulatively or alternatively to this, in order to achieve the same advantage, the housing projection can taper in a tapering area along the length pointing away from the holder.

The “radiating surface edge” is understood to mean, in particular, the edge of a respective radiating surface that delimits the radiating surface on the outside. Depending on the specific configuration, a corresponding emission surface edge can also be assigned to each partial emission surface. which rests at least partially on the housing.

In particular, a peripheral emission surface edge has a maximum diameter and a minimum diameter. Only with circular radiating surfaces are the maximum and minimum diameters the same, which then also applies to the radiating surface itself. Particularly in the case of curved radiating surfaces, it appears advantageous to leave the cross-sectional lines for determining the maximum and minimum diameter on the radiating surface in order to be able to record the geometry of the radiating surface well in this way.

It is advantageous if the spatial relationship between the two partial emitter bodies is represented by the two partial emitter bodies being spaced less than the maximum diameter of the radiating surface edge of the compact first partial emitter body, preferably less than half its maximum diameter. With a suitable design, this can represent the above-mentioned contrast between compact on the one hand and narrow and long on the other hand in a good technical way and thus attract attention with a corresponding housing shape, the latter particularly applying at a distance of half the maximum diameter or less.

The two partial radiating bodies preferably merge into one another or directly adjoin one another. This has the advantage that the contrast between compact on the one hand and narrow and long on the other hand can be implemented even better. A structure that is as compact as possible can also be provided, which—depending on the specific implementation—can allow short distances for electrical lines and the like.

If the partial emitting bodies are directly adjacent to one another, the emitting surface edge of one emitting partial body will reach the emitting surface edge of the other emitting partial body in the region in which they are directly adjacent to one another. In this area, in particular, there can generally not be any contact between the two radiating surface edges and the housing. Optionally, however, an adhesive or a sealant can be provided here, which is arranged between the two radiating surface edges in this area. It is also conceivable to connect or seal the partial radiating bodies in the direction of the interior of the housing behind the two radiating surface edges.

Instead of gluing, for example, the two partial emitting bodies can also be welded in the region of the edges of the radiating surface touching one another, as a result of which the partial emitting bodies then form the emitting body in one piece. Any remaining seam can advantageously minimize a jump of light from the partial emitter body to the other partial emitter body, which is particularly advantageous when the two partial emitter bodies are used for light with different functionality, in particular with different colors.

However, the latter can be accepted if a seam when assembling the two partial radiating bodies can be minimized or completely avoided or healed. In particular, if the partial radiating bodies are then used for identical functionalities, this appears to be uncritical anyway. However, with a suitable design of the remaining optics, a jump of light can be minimized in such a way that it can be accepted even if there is no seam. The latter applies in particular if the two partial radiating bodies are manufactured in one piece from the outset, i.e. for example in a common primary shaping process or from a semi-finished product that is primary shaped as a whole.

If, however, they merge seamlessly or directly adjoin one another, in particular are connected to one another in one piece, and a seam cannot be defined, they share a radiating surface edge, which is preferably by definition between the two points at which the two radiating surface edges meet the two radiating part bodies the shortest distance can be defined on the two radiating parts.

As already indicated above, a “merging” of the two partial radiating bodies can be implemented in particular by the fact that they are designed in one piece. This enables them to be manufactured easily, since they can then be shaped in one production step and also mounted in the housing.

In particular, the two edges of the radiating surface can merge into one another in a discontinuous manner in order to attract a great deal of attention. In the present context, a “discontinuous transition” is understood to mean a transition that is continuous but has a discontinuous change in direction, for example with a sharp bend or with another sharp transition between the two edges of the emission surface.

Alternatively or cumulatively, the two radiating surface edges can also merge into one another with a change of direction in order to draw a lot of attention. By “with a change of direction” is meant in particular, for example, a change from circular to straight, or from one circular shape to another circular shape, possibly with opposite radii and then to a straight line. In this case, this change in direction can be discontinuous, for example due to a sharp bend, but can also be in the form of a somewhat softer transition. It can be assumed that - the softer this transition occurs - the less attention is generated.

“Discontinuous” in the present context refers to a change that the human eye perceives as discontinuous, for example as a kink. It goes without saying that, viewed microscopically, discontinuous transitions also usually have a curve-like, continuous course.

It is advantageous if the two radiating surface edges merge into one another in a transition area and the housing overhang in the transition area is greater than on either side of the transition area, which means that a lot of attention can be drawn. The transition area is then defined in particular as the area in which the two edges of the emission surface come into contact and a change in direction reaching to this contact point compared to a direction present in the remaining area of the edges of the emission surface, for example a course that can otherwise be clearly parameterized, such as an elliptical, circular or rectilinear course, the parameters of which are then varied to the contact point, definable direction.

Preferably, the maximum diameter and the minimum diameter of the radiating surface edge of the first, ie the compact radiating sub-body are in a ratio of less than 2:1 to one another. In this way, the basic inventive idea can be implemented in a correspondingly meaningful manner.

In order to achieve the same advantage, the maximum diameter and the minimum diameter of the radiating surface edge of the second, i.e. the narrow and long, radiating part body can be cumulative or alternative to each other in a ratio greater than 8:1, in particular greater than 10:1, with a too thin or a too narrow and long emitting part body or too thin or too narrow and long emitting surface of the same is then technically no longer feasible or can no longer develop sufficient luminosity. However, the relevant limits can be experienced by a person skilled in the art simply by trying them out.

In order to implement the basic idea of the invention in a meaningful way, the minimum diameter of the emission surface edge of the second, i.e. the narrow and long, partial emission body and the minimum diameter of the edge of the emission surface of the first, i.e. the compact emission part body, can be in a ratio of less than 1:3 to one another. In particular, it is then ensured that the narrow and long partial radiating body also has a correspondingly narrower radiating surface.

In particular, if the ratio between the minimum diameter of the radiating surface edge of the second, i.e. the narrow and long, radiating sub-body and the minimum diameter of the radiating surface edge of the first, i.e. the compact radiating sub-body is less than 1:3.5, these ratios can be maintained. This applies in particular when this ratio is even less than 1:3.2.

Advantageously, the radiating surface edge of the first, that is to say the compact radiating sub-body, is curved over at least 80%, preferably over at least 90%, of its extension, preferably circular. In this way, a high level of attention can be generated, especially in combination with other features. Due to the curvature, the first partial emitting body and its emitting surface can be given a compact appearance.

On the other hand, the radiating surface edge of the second, i.e. the narrow and long, radiating part body can be straight over at least 80%, preferably over at least 85%, of its extent, which can accordingly ensure its narrow and long appearance in a structurally simple manner.

It goes without saying that, in the above combination, a deviation of 10% from these specifications still seems acceptable, in particular since the human eye cannot make out the smallest details anyway.

Different functionalities or identical functionalities can also be assigned to the two partial radiating bodies. For example, it is possible to make different configurations and combinations of indicators and taillights, for example, so that the first partial emitter can perform indicators or taillights or other functions, while the second emitter can then be used, for example, for position lights, brake lights or also indicators. Depending on the design and combination, this can increase attention even further.

The term “vehicle light” includes all lights used on a vehicle. For example, a vehicle light can be a turn signal light, a brake light, a daytime running light, a reversing light, a position light or a rear fog light. The vehicle light can also be a rear light or a reversing light. The Road Traffic Licensing Regulations specify numerous requirements for the vehicle light, which are decisive for the roadworthiness of the vehicle. Here, for example, maximum and minimum luminosity of the vehicle light are specified, within which the luminosity of the vehicle light must move. For example, light ranges can also be specified, which define which area a vehicle light must light up, so that the light can be seen directly from this area. In addition, further specifications from the Road Traffic Licensing Regulations can be imposed on the vehicle light permitted for road traffic.

In the case of the functionality as a turn signal, the lighting means is preferably designed as a flashing light with a frequency and a relative bright time

The term "flashing light" is advantageously understood to mean a direction indicator which is a lighting device on vehicles and is used to inform road users on the road about a change in direction of travel or to announce this. This can also be referred to as a "turn signal" and is part of the vehicle lighting. The turn signal flashes in phase with a specific frequency and clocks in such a way that the flashing light has a specific relative brightness time. Both the relative brightness time and the frequency of the flashing light are required by law for road traffic approval, so they must remain within the legally prescribed limits. Maximum and minimum values are stipulated by law in each case.

It is advantageous if at least one of the two emitter bodies, preferably both emitter bodies, has an aerodynamic cross section in the emission direction or on its emission surface, which combines with the aerodynamic cross section of the housing to form a common aerodynamic cross section, resulting in particularly good cooling of the vehicle light can be achieved.

Advantageously, the vehicle lamp is not designed to radiate but only to illuminate. Thus, the vehicle light can be used as a light and not as a spotlight.

The two emission directions of the two partial emission bodies can also diverge from one another by less than 10°. Thus, the lighting area of the vehicle lamp does not scatter too much and the luminosity is emitted by the two emitter bodies in approximately the same direction, so that the two emitter bodies can be perceived from different angles with somewhat the same luminosity.

As already explained at the outset, the vehicle lamp is preferably used as a lamp in a vehicle. If the vehicle lamp is to be used as a radiator, the beams that illuminate a bright field in a specific manner in a targeted manner cover the shape of the housing and the two emitting parts due to their dazzling effect in such a way that the intended advantages can no longer come into their own. The optical, electrical and thermal requirements for radiators are also so different that there are other specifications with regard to the tasks and advantages at hand.

The object of the invention is achieved by vehicle lights having the features of the independent claims. Further advantageous configurations, which may also be independent of this, can be found in the subclaims and the following description.

It goes without saying that the features of the solutions described above or in the claims can also be combined if necessary in order to be able to cumulatively implement the advantages accordingly.

• 1 eine perspektivische Aufsicht auf eine Fahrzeugleuchte; und
• 2 die Fahrzeugleuchte nach 1 in einer Frontansicht.

Further advantages, goals and properties of the present invention are explained using the following description of exemplary embodiments, which are also shown in particular in the attached drawing. Show in the drawing:

• 1 a perspective view of a vehicle lamp; and
• 2 the vehicle light 1 in a front view.

According to the exemplary embodiment presented here, a vehicle lamp 10 comprises a housing 20, a holder 30, a first partial emitter body 40 and a second partial emitter body 50.

The vehicle light 10 can also be assigned a height 31 , a length 32 perpendicular to the height 31 and a depth 33 perpendicular to the height 31 and perpendicular to the length 32 .

The first partial emission body 40 has a first emission direction 41 , an emission surface edge 42 and an aerodynamic cross section 49 on its emission surface surrounded by the emission surface edge 42 .

Correspondingly, the second partial emission body 50 also has a second emission direction 51 , an emission surface edge 52 and an aerodynamic cross section 59 on its emission surface surrounded by the emission surface edge 42 .

In the present exemplary embodiment, the partial emitting bodies 40, 50 are assembled in one piece to form a common emitting body, so that the two partial emitting bodies 40, 50 are minimally spaced apart from one another in this exemplary embodiment. In different embodiments, a seam between the two partial radiating bodies 40, 50, a multiple piece configuration or an actual distance can be provided if necessary.

The first and second partial emission bodies 40, 50 are each aligned in a first emission direction 41 and in a second emission direction 51. The emission directions 41, 51 are the result of lighting means which are known per se and are not shown separately here, which are arranged inside the housing 20 and, depending on their function, radiate through one or the emission bodies 40, 50. In this case, the emission directions 40, 50 are defined as the direction in which the light from a light source or the light from a plurality of light sources representing the same functionality leaves the respective partial emission body 40, 50 with its main intensity. Depending on the specific implementation, several light sources with the same or different functionality can also be provided for each partial emitter body 40, 50, although the above definition remains valid.

In the present exemplary embodiment, the two emission directions 41, 51 diverge from one another by an angle 34 of less than 1°, i.e. in particular by less than 10°, so that the light exits the vehicle lamp 10 in essentially the same direction, regardless of which functionality is used .

The first partial emission body 40 is of compact design perpendicular to the first emission direction 41 . The second partial emission body 50 is narrow and long along the length 32 perpendicular to the second emission direction 51 .

Both radiating surface edges 42, 52 of the radiating bodies 40, 50 can each be assigned a minimum diameter and a maximum diameter.

The radiating surface edge 42 of the first compact radiating part body 40 is almost circular. The exception to this is a common emission surface edge with the second partial emission body 50 at the point at which the two partial emission bodies 40, 50 merge into one another. Here the radiating surface edge 42 of the first compact radiating part body 40 is to be regarded as rectilinear.

In this respect, the minimum diameter of the radiating surface edge 42 of the first compact radiating sub-body 40 is almost imperceptibly smaller than its maximum diameter, which corresponds to the circle diameter. Accordingly, it applies in particular that the maximum diameter and the minimum diameter of the emission surface edge 42 of the first partial emission body 40 are in a ratio of less than 2:1 to one another.

The radiating surface edge 52 of the second narrow and long radiating part body 50 is rectangular. This also applies to the common radiating surface edge with the first radiating part body 40 at the point at which the two radiating part bodies 40, 50 merge into one another.

It follows that the maximum diameter of the radiating surface edge 52 of the second narrow and long radiating sub-body 50 is significantly larger than its minimum diameter, so that the second radiating sub-body 50 and its radiating surface surrounded by its radiating surface edge 52 appear narrow and long. In particular, the maximum diameter and the minimum diameter of the emission surface edge 52 of the second partial emission body 50 are in a ratio of greater than 8:1 to one another.

In addition, the minimum diameter of the emission surface edge 42 of the second emission part body 50 and the minimum diameter of the emission surface edge 42 of the first emission part body 40 are in a ratio of less than 1:3 to one another. This ensures that the second partial radiating body 50 and its radiating surface edge 42 is substantially narrower than the first partial emission body 40 and its emission surface edge 42 .

As can be seen immediately, the radiating surface edge 42 of the first radiating sub-body 40 is curved over 90% of its extension and is circular.

In contrast, the radiating surface edge 52 of the second radiating part body 50 is formed in a straight line over at least 90% of its extension.

The two radiating surface edges 42, 52 merge into one another in a transition area 61 with a change in direction. The radiating surface edge 42 of the first radiating part body 50 is round so that in the area where it meets the radiating surface edge 52 of the second radiating part body 50, its direction of curvature is first reversed radially outwards and then ends in the straight part of the radiating surface edge 52 of the second radiating part body 50 - and vice versa. This also ensures appropriate attention. In different embodiments, it is possible that this change in direction is so sharp that it can be described as discontinuous or appears as a kink.

A matching radiating surface edge 62 of the two radiating surface edges 42 and 52 can be defined in the transition region 61, which lies between the transitions of the two radiating surface edges 41, 51 as a substantially straight line.

The vehicle light 10 is attached or attachable to a vehicle frame 11 by means of a holding arm 22 of the holder 30 . In the present exemplary embodiment, the holding arm 22 merges steadily into the housing 20, which, however, does not necessarily have to be the case in different embodiments.

A front side 37 and a rear side 38 can be assigned to the housing 20 , for example starting from the emission directions 41 , 51 . In this case, the front side 37 points in the emission direction 41, 51 and the rear side 38 in the opposite direction to the emission direction 41, 51.

The depth 33 of the emission directions 41, 51 can also be defined with a component that lies parallel to at least one of the emission directions 41, 51. If necessary, the mean value of the two emission directions 41, 51 can also be used for the definition, in particular if a definition is to be selected in which the depth 33 is to be parallel to the emission direction 41, 51 and both emission directions 41, 51 are recognizable or measurable in can be found at an angle 34 deviating from 0°.

Taking into account the narrow and long design of the second partial emitting body 51 or its emitting surface edge 52, the length 32 can then be defined parallel to this orientation and perpendicular to the depth 33, whereupon the height 31 then perpendicular to the length 32 and perpendicular to the depth 33 follows.

The common housing 20 has, counter to the respective direction of emission 41, 51, viewed towards one of the two partial emitting bodies 40, 50, a projection that projects beyond the respective emitting surface edge 42, 52 perpendicularly to its course, the course of the respective emitting surface edge 42, 52, starting from a maximum height 35 of the common housing 20 in a direction 36 pointing away from the holder 30 with a changed thickness following the housing projection 21 .

The height 31 also has a maximum height 35.

In addition, starting from the maximum height 35 of the common housing 20, the common housing 20 is designed in the form of a wing or a supporting surface.

In addition, the housing 20 has a greater depth 33 than height 31 along at least 90% of the length of the common housing 20, at least starting from one or the maximum height 35 of the common housing 20 in a direction 36 pointing away from the mount 30.

The housing 20 of the present embodiment according to 1 and 2 is also formed in one piece.

Furthermore, the housing 20 also has a streamlined cross section 29 in sectional planes through the housing 20 oriented parallel to the depth 33 and to the height 31 .

The housing 20 also has a greater depth 33 than 31 height.

Contrary to the two partial emission directions 41, 51, seen from the maximum height 35 of the common housing 20 to the holder 30, the housing 20 tapers, with this being both in a section parallel to the length 32 and the height 31 and in a section parallel to the depth 33 and the intersection lying at length 32 is the case. It is understood that in deviating Ausführungsfor men a taper can also be sufficient in just one of these cuts.

The front and rear sides 37, 38 of the housing 20 each have a rectilinear area 23 which, starting from the holder 30, approaches one another along the length 32. As can be seen, in this exemplary embodiment, these rectilinear areas 23 start only after the maximum height 35 or only after the first partial emitter body 40.

The housing overhang 21 is the cross section perpendicular to the length 32 is smaller than the height 31 of the associated emitter body 40, 50 in this cross section. Like this one in particular 2 is evident. The housing projection 21 also tapers in a tapering region 24 along the length 32 pointing away from the holder 30 or from the holder-side end of the second partial emitting body 50 .

The housing overhang 21 in the transition area 61 is larger than on both sides of the transition area 61.

Both partial emitting bodies 40, 50 are arranged in the common housing 20, so that in this way the spatial relationship of the two partial emitting bodies 40, 50 is additionally shown.

In addition, the vehicle light 10 extends along a direction 36 pointing away from the mount 30 or the holding arm 22.

In particular, it is possible for the two partial radiating bodies 40, 50 to each have different functionalities. For example, any combination of the two partial emitting bodies 40, 50 of, for example, indicators, position lights, brake lights and rear lights or other combinations of functions used in a vehicle light can be used.

Reference List

10

vehicle light

11

vehicle frame

20

housing

21

housing overhang

22

holding arm

23

straight section of the housing 20

24

Tapering area of the housing projection 21

29

aerodynamic cross-section of the case 20

30

bracket

31

Height

32

length

33

depth

34

Angle between the first emission direction 41 and the second emission direction 51

35

maximum height

36

of the bracket 30 pioneering direction

37

Front of the case 20

38

Back of case 20

40

first radiating part body

41

first emission direction

42

Radiating surface edge of the first radiating part body 40

49

aerodynamic cross-section of the first radiating part body 40

50

second radiating part body

51

second emission direction

52

Radiating surface edge of the second radiating part body 50

59

aerodynamic cross section of the second radiating part body 50

61

transition area

62

matching radiating surface edge of the two radiating surface edges 42, 52

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was 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.

Patent Literature Cited

• DE 10351048 A1 [0002]
• DE 102018213317 A1 [0002]
• DE 102010056311 A1 [0003]

Claims (20)

Vehicle light (10) with at least one first and one second emitter body (40, 50), which are in a spatial relationship and are each aligned in a first emission direction (41) and a second emission direction (51), with a common housing (20) for the two emitting parts (40, 50) and with a holder (30) for attaching the common housing (20) to a vehicle frame (11), the spatial connection of the two emitting parts (40, 50) being ensured by the common housing (20) is shown, wherein the common housing (20) has a height (31), a length (32) arranged perpendicular to the height (31) and a depth (32) arranged perpendicular to both the height (31) and perpendicular to the length (32). 33) with a directional component parallel to the two emission directions (41, 51) and wherein each of the two partial emission bodies (40, 50) has a circumferential emission surface edge (42, 52) perpendicular to its emission direction (41, 51), d a characterized in that the first partial emitting body (40) perpendicular to the first direction of emission (41) is compact and the second partial emitting body (50) perpendicular to the second direction of emission (51) is narrow and long along the length (32) and the common housing (20 ), (i) viewed against the respective emission direction (41, 51) on one of the two partial emission bodies (40, 50), a projection of the respective emission surface edge (42, 52) perpendicular to its course, the course of the respective emission surface edge (42, 52) starting from a maximum height (35) of the common housing (20) in a direction (36) pointing away from the holder (30) with a changing magnitude following housing projection (21); and/or (ii) starting from one or the maximum height (35) of the common housing (20), it is designed in the form of a wing and/or an aerodynamic cross-section (29) and/or an aerofoil; and/or (iii) along at least 90% of the length of the common housing (20), at least starting from one or the maximum height (35) of the common housing (20) in a direction (36) pointing away from the holder (30), each has a greater depth (33) than height (31). Vehicle light (10) after claim 1 , characterized in that the common housing (20) is formed in one piece. Vehicle light (10) after claim 1 or 2 , characterized in that the common housing (20) on a vehicle frame (11) by means of a holding arm (22) of the bracket (30) is attached or attachable Vehicle light (10) according to one of Claims 1 until 3 , characterized in that the two emitting parts (40, 50) are inserted into the common housing (20). Vehicle light (10) according to one of Claims 1 until 4 , characterized in that the common housing (20) has a streamlined cross-section in each case in parallel to the depth (33) and to the height (31) oriented sectional planes through the housing (20). Vehicle light (10) according to one of Claims 1 until 5 , characterized in that the common housing (20) is designed in the form of a wing, starting from the support (30), that the common housing (20) starting from the support (30) along the length (32) of the common housing (20 ) each has a greater depth (33) than height (31) and/or that the common housing (20), seen against at least one of the two emission directions (41, 51), extends from the maximum height (35) of the common housing ( 20) tapers towards the holder (30). Vehicle light (10) according to one of Claims 1 until 6 , characterized in that along at least 90% of the length (32) of the common housing (20), at least starting from one or the maximum height (35) of the common housing (20) in a direction (36 ), The depth (33) of the common housing (20) is at least twice the height (31) of the common housing (20). Vehicle light (10) according to one of Claims 1 until 7 , characterized in that a front and/or rear side (37, 38) of the common housing (20) has a rectilinear area (23), with preferably the front and rear side (37, 38) each having a rectilinear area (23 ) and the two rectilinear areas (23) starting from the support (30) along the length (32) in particular approach each other. Vehicle light (10) according to one of Claims 1 until 8th , characterized in that the housing projection (21) in the cross section perpendicular to the length (32) is smaller than the height (31) of the associated radiating part body (40, 50) in this cross section and/or that the housing projection (21) is in a narrowing area (24) along the length (32) tapered away from the bracket (30). Vehicle light (10) according to one of Claims 1 until 9 , characterized , that the surrounding radiating surface edge (42, 52 Attention: note Claims 11 and 12 ) each having a maximum diameter and a minimum diameter. Vehicle light (10) after claim 10 , characterized in that the spatial connection is represented by the fact that the two emitting parts (40, 50) are spaced apart from one another by less than the maximum diameter of the emitting surface edge (42) of the first emitting part (40), preferably less than half the maximum diameter, and preferably within one another go over or directly connect to each other. Vehicle light (10) after claim 10 or 11 , characterized in that the two radiating surface edges (42, 52) merge into one another discontinuously and/or with a change in direction. Vehicle light (10) according to one of Claims 10 until 12 , characterized in that the two radiating surface edges (42, 52) merge into one another in a transition area (61) and the housing overhang (21) in the transition area (61) is greater than on both sides of the transition area (61). Vehicle light (10) according to one of Claims 10 until 13 characterized in that the maximum diameter and the minimum diameter of the emission surface edge (42) of the first emission part body (40) in a ratio of less than 2: 1 to one another and/or that the maximum diameter and the minimum diameter of the emission surface edge (52) of the second emission part body (50) in one Ratio greater than 8:1, in particular greater than 10:1, to one another. Vehicle light (10) according to one of Claims 10 until 14 , characterized in that the minimum diameter of the emission surface edge (52) of the second emission part body (50) and the minimum diameter of the emission surface edge (42) of the first emission part body (40) in a ratio of less than 1: 3, in particular less than 1: 3.5, preferably even less than 1:3.2, to each other. Vehicle light (10) according to one of Claims 10 until 15 , characterized in that the radiating surface edge (42) of the first radiating part body (40) is curved, preferably circular, over at least 80%, preferably over at least 90%, of its extension and/or that the radiating surface edge (52) of the second radiating part body (50 ) is rectilinear over at least 80%, preferably over at least 85%, of its extent. Vehicle light (10) according to one of Claims 1 until 16 , characterized in that different functionalities or identical functionalities are assigned to the two partial radiating bodies (40, 50). Vehicle light (10) according to one of Claims 1 until 17 , characterized in that at least one of the two partial emitter bodies (40, 50), preferably both partial emitter bodies (40, 50), has an aerodynamic cross section (49, 59) which changes with the aerodynamic cross section (29) of the housing (20). complemented by a common aerodynamic cross-section. Vehicle light (10) according to one of Claims 1 until 18 , characterized in that the vehicle lamp (10) is designed to be non-radiant but merely luminous. Vehicle light (10) according to one of Claims 1 until 19 , characterized in that the two emission directions (41, 51) diverge from each other by less than 10°.

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