DE102014202561A1 - Beduftungsvorrichtung - Google Patents

Abstract

The invention relates to a scenting device (10), in particular for a motor vehicle, with a housing (34) in which at least one cartridge (12) for storing a fragrance is arranged, wherein the cartridge (12) has a through opening (28) for the fragrance a mixture space (16) having an opening into which air can enter, and in which the perfume is miscible with the air to form an air / perfume mixture, perfume-carrying lines (20, 24, 54), through which the air / perfume mixture can flow. The scenting device (10) is characterized in that a cleaning device (52) for wall sections (48, 50, 55) which have come into contact with the perfume and / or the perfume / air mixture, in particular of the housing (34) , the mixing chamber (16) and the perfume-carrying lines (20, 24, 54) is provided. Furthermore, the invention relates to a cleaning method (112) for a scenting device (10) and an air conditioner, in particular for a motor vehicle.

Description

Technical area

The invention relates to a scenting device, in particular for a motor vehicle, according to the preamble of claim 1. Furthermore, the invention relates to a cleaning method for a scenting device and an air conditioning system with a scenting device.

State of the art

Air conditioners are used in motor vehicles to allow a driver and / or passenger in a motor vehicle interior a pleasant climate. In addition to the realization of a pleasant for the driver and / or passenger temperature, increasingly includes a provision of an optimized and modifiable fragrance environment to the benefits of a modern air conditioning. For this purpose, modern air conditioning systems have, in particular, a scenting device, in particular for increasing passenger comfort and vehicle individualization. Simple scenting devices are known in which a permanent scenting is used. In the modern scenting device, typically a perfume from a reservoir, a so-called cartridge or cartridge, is mixed with air in a mixing chamber and admixed with an air stream of the air conditioning system which can flow into the vehicle interior. Modern scenting devices can be switched on and switched off again, so that the scenting can be used as needed.

Scenting devices per se are known in the art and are used in various embodiments, in particular in air conditioning systems of motor vehicles. Some embodiments are summarized below.

The WO 2009/083157 A1 discloses a scenting device for treating ambient air with actives. The device consists of a housing which is subdivided into two sections and in whose one section active-substance carrier elements are arranged, which are surrounded by ambient air. This can be supplied by means of a suitable device for conveying air, from outside the housing in the first portion of the housing. The air accumulates as it flows around the Aktivstoffträgerelemente with appropriate active substances, is then transferred to the second section of the housing, where it is compressed by means of a compressor, so that it can be advantageously discharged under pressure from the device to a desired location.

The WO 2004/037304 A1 relates to a device for supplying odors, in particular for a motor vehicle. The device comprises a control unit, wherein the supply of odorous substances in a motor vehicle interior by means of the control unit is adjustable so that a current value of an odorant concentration in the interior is in the range between a detection threshold and a detection threshold, wherein the mass transfer from the odorant to an air flow for the interior done by evaporation.

The DE 103 27 859 A1 relates to a scenting device, in particular for the scenting of motor vehicles. The scenting device contains a perfume with a gas-tight sealable perfume reservoir, wherein a lid is provided, which is actuated by means of an axially acting actuator, which can be opened or gas-tight as a result of a displacement of the lid of the fragrance reservoir. Furthermore, a method for operating such a scenting device is disclosed.

The DE 103 28 747 A1 discloses an air conditioning system with a scenting device, in particular for a motor vehicle with a temperature setting possibility, wherein an adjustment device for the scenting device is provided. Furthermore, a method for operating the scenting device is disclosed.

The DE 103 27 122 A1 relates to a scenting device, in particular for perfuming motor vehicles, which contains a perfume, with a metering device. The scenting device has at least one hollow body, which has at least one opening, and an element with at least one opening, wherein the hollow body and / or the element are driven by a motor such that a relative movement between the hollow body and the element is made possible and the two openings in at least one position of the relative movement allow a passage of perfume from the inside to the outside. Furthermore, a method for operating such a scenting device is disclosed.

The DE 103 46 182 A1 relates to a scenting device for scenting motor vehicles, which is arranged in the vehicle interior or an air duct of the ventilation system, and having a, fragrance-containing, reservoir, wherein the scenting device is in the installed state by an opening refillable.

From the EP 1 854 647 B1 a scenting system is known, in particular for a motor vehicle, with at least one first component and at least one second component, which at least the first component is substantially encompassed or encompassed by the latter, wherein the at least one first and the at least one second component each have a prismatic inner or outer circumferential surface, which may also be interrupted, and the components are movable relative to one another. In one of the components, at least two receiving chambers are provided, in which at least one fragrance is contained, and through which at least one, first component and the at least one, second component depending on the position to each other at least one connection to the environment is free, on which if required Perfume can be discharged to the outside of the or the receiving chambers.

The EP 2 039 545 B1 relates to a scenting system, in particular for a motor vehicle, which has at least two relatively rotatable components, wherein in at least one relative position of the components to each other at least one opening is released, which is closed in at least one other relative position of the components, and wherein at least one of a motor drivable fan of a fan which is seated on the motor shaft or is coupled to the same, is provided. Here, at least one freewheel between the motor shaft and the relatively rotatable components of the scenting system are provided.

The EP 1 941 915 B1 discloses a scenting system, in particular for a motor vehicle, with at least two fragrance reservoirs, each of which can be traversed by an air flow, with a fragrance of the corresponding fragrance reservoir air to be displaced, at least one fan, which generates the air flow through the fragrance reservoirs when needed, and a device for adjusting the desired perfume with which the air is to be displaced, the device for adjusting the desired perfume by the fan in conjunction with adjustable flaps, which determine the flow path of the air through the scenting system is formed.

From the DE 10 2007 010 796 A1 An arrangement with a scenting device is known which comprises an intake air passage, a blow-out air passage, a blower and a receptacle for a fragrance, wherein in one of the air ducts, a temperature sensor is arranged.

From the EP 2 143 575 A1 a scenting device is known in which an exchangeable fragrance supply device is provided.

The scenting device of EP 2 143 577 A1 discloses a scenting device with a replaceable fragrance supply device, wherein a fragrance container device, a fragrance delivery device and a coupling device for coupling to at least one actuator device is described.

The DE 10 2008 013 218 A1 relates to a scenting system, in particular for motor vehicles, wherein the scenting system has a display unit which is designed to display a scenting setting of the scenting system.

The DE 10 2008 052 589 A1 relates to a pumping device that can be used in a scenting device.

The DE 10 2008 011 174 A1 discloses in a scenting device into which cartridges filled with different fragrances can be used to indicate the perfumes contained in the cartridges. In this case, a part of the scenting device is a display arranged in the vehicle interior, on which the one or more scents used in the scenting device contained in the cartridges can be displayed.

The EP 2 143 576 B1 discloses a fragrance dispenser wherein it is proposed to provide an exchangeable fragrance supply device comprising at least one fragrance container means and at least one fragrance delivery means with at least one coupling means for coupling to at least one actuator means.

The EP 1 961 594 B1 relates to an air duct in an automotive air conditioning system having at least one longitudinal dividing wall for dividing the air duct into at least one ventilation duct and at least one scenting duct, wherein at least one air treatment apparatus is provided for changing the chemical composition of an airflow flowing through the scenting duct, the air treatment apparatus being arranged in the scenting duct is, which in turn is arranged in a ventilation duct. In this case, the air treatment device has a scenting device for enriching the air stream flowing through the scenting canal with one or more flavoring substances, the scenting device being arranged in an air-downstream area of the scenting canal.

The DE 10 2007 038 222 A1 relates to a scenting device for a space, in particular for a vehicle, wherein at least one cartridge containing a releasable perfume and a fan which draws air when switched on are mixed with the perfume issuing from the cartridge and the perfume mixed with the air feeds, and / or an ionizer, which ionizes the air flowing through and the space to be supplied is provided, wherein the device has an interface for integration into a data bus system.

From the DE 10 2008 033 884 A1 a device is known for introducing at least one additive into a fluid flow flowing in a channel, in particular for a vehicle ventilation system, wherein at least one region separated from the fluid flow flowing in the channel, in which the additive is contained and / or generated, is provided and at least a swirl element which, in at least one operating position, displaces a flowing air stream with a swirl before the fluid flow exits an outflow device into the space, wherein the swirl element has outlet openings via which the additive can be mixed with the passing fluid stream.

The EP 2 058 013 A1 relates to a scenting device for a motor vehicle, comprising at least a perfume receiving device, a fan, a drive motor for the fan and an electric power supply device for the drive motor, which are arranged in a housing, wherein the power supply means energizes the drive motor of the fan independently of the power supply system of the motor vehicle ,

The EP 2 095 980 A3 relates to a device for supplying at least one odorant into the interior of a motor vehicle, comprising an odorant carrier having at least one odorant, an air duct for supplying air to be enriched to the odor carrier and / or for returning enriched air from the odor carrier into the interior of the motor vehicle. In this case, the at least one odorous substance can be fed to the air duct, a fan for circulating the air in the air duct and a closure device for controlling and / or regulating the amount of at least one odor substance that can be supplied by the odorant carrier as a function of time. Here, the amount of the emitted odorant should be controlled as a function of time as a function of the actual temperature of the precursor to the odorant carrier air.

In the DE 10 2008 021 460 A1 an installation device for the interior of a motor vehicle is proposed which has at least one function. In addition to the at least one function, the installation device has at least one scenting device formed integrally therewith.

The DE 10 2007 044 978 A1 discloses a method and a device for scenting interiors, in particular vehicle interiors, wherein heat is supplied to the release of fragrances of a fragrance carrier substance, wherein the heat is transferred from a fragrance carrier substance receiving body made of an electrically conductive polymer material having a positive temperature coefficient, to which a Material warming leading electrical voltage is applied. In this case, the fragrance intensity is controlled by the temperature of the body and prevents overheating by increasing the temperature increasing resistivity of the polymer composition (PTC behavior).

The EP 2 085 258 B1 relates to a device for scenting an interior, in particular a vehicle interior, wherein a discharge of a fragrance can be effected by a guided past an opening of a reservoir air flow or by heating a fragrance binding medium.

The WO 2009/003704 A3 and the EP 2 164 531 B1 relate to a scenting device, in particular for a motor vehicle, comprising a housing, at least one, arranged in a receptacle provided in the housing, cartridge, in which a perfume is contained, an inlet opening, via which air can enter the housing of the scenting device, a mixing chamber, in which the perfume is miscible with the air, an outlet opening through which the perfume mixed with the air can escape to the outside, and at least one actuatable shut-off device which prevents the perfume from escaping from the recording in the mixing chamber in at least one position. Here, a swirl generating device is provided in the region of the inlet opening and / or between the inlet opening and the mixing chamber.

The different designs of scenting devices described above are not optimally suited for continuous operation in a motor vehicle.

Presentation of the invention, object, solution, advantages

It is therefore the object of the invention to provide an improved scenting device.

This is achieved with a scenting device having the features of claim 1.

In one embodiment of the invention, a scenting device, in particular for a motor vehicle, comprises the following components: a housing in which at least one cartridge for storing a fragrance is arranged, wherein the cartridge has a perfume passageway, a mixing space having an opening, wherein air is allowed to enter the mixing space, and the perfume is miscible with the air to form an air / perfume mixture, and perfume-carrying conduits through which the perfume passes Air / perfume mixture can flow. According to the invention, a cleaning device is provided for wall sections which have come into contact with the perfume and / or the perfume / air mixture. In particular, these are wall sections of the housing, the mixing chamber and the perfume-conducting lines. Here, the walls of the cartridge, the housing and the perfume-carrying lines are preferably made of plastic. The cleaning device is provided in particular for wall sections which have come into contact with the fragrance, in particular the gaseous fragrance of the fragrance / air mixture. By means of the cleaning device, the scent molecules adhering to or adsorbed on the wall sections can be completely eliminated. In this way, a possible contamination of surfaces of the wall sections with perfume can be eliminated. The scenting of the vehicle interior can be switched on with the switching on of the scenting device and again ended with the disconnection of the scenting device. There can be no annoying after-perfume. An incorrect scenting due to contaminated wall sections that uncontrollably secrete or desorb perfume can be eliminated. It can also be avoided that it comes in scenting devices with multiple types of perfume and multiple fragrances, a mixture of different fragrance notes after the fragrance note has been changed.

Preferably, at least one shut-off device is provided, by means of which it can be prevented that the air / perfume mixture can escape from the mixing chamber. The shut-off device can in this case have a closable flap. In addition, a swirl-generating device for distributing the air / perfume mixture may be provided in the vehicle interior.

umwandeln, wenn diese mit dem Duftmolekül in Berührung kommen. Die endohedralen Komplexe weisen dann den Hohlraum auf.In one embodiment of the scenting device, the cleaning device has cage molecules, in particular spheres. Cage molecules can permanently surround the perfume, in particular perfume molecules. The cage molecules, in particular spheres, can have a cavity, so that the scent molecules can easily penetrate. The fragrance molecules arranged or adhering to the wall sections, in particular the surface of the wall sections, are preferably enclosed in the cage molecules. The fragrances are trapped inside the cage molecules, so to speak. Cage molecules may be macromolecules having structures derived from heterofullerenes, partial fragments of the fullerene being replaced by porphine, phthalocyanine, and / or subphthalocyanine units. Thus, cage molecules are no longer fullerenes, but merely have a structure derived therefrom. The cage molecules or spheres can therefore have the properties of the respective macrocycle. Additionally or alternatively, the macromolecules may also have fullerene-like properties. The fullerene-like properties can be catalytic and / or sensory properties. Cage molecules differ from fullerenes in that the cage molecules have a cavity. The cage molecules can also be used as pure fullerenes, in particular as reagents, and become endohedral complexes

when they come in contact with the fragrance molecule. The endohedral complexes then have the cavity.

In a preferred embodiment of the scenting device, the cage molecules, in particular spheres, are present in a reservoir, the reservoir having a passage opening. This reservoir is preferably arranged in the housing of the scenting device. In particular, the reservoir for the cage molecules may be a cartridge substantially similar to the perfume cartridge in construction. The reservoir for the cage molecules, in particular spheres, in this case has flaps and seals which shield the contents of the cartridge for the cage molecules from the environment. The configuration of the reservoir for the cage molecules, for example, a in the EP 2 164 531 B1 be described cartridge with associated release devices. If the cleaning device is activated, the reservoir for the cage molecules can be opened and the cage molecules can, for example, reach the mixing chamber and / or the air stream of the perfume / air mixture. The cage molecules, like the fragrance molecules, can adhere to or be adsorbed to the wall sections. These wall sections are in particular wall sections through which the fragrance / air mixture flows. Overall, all inner surfaces of the scenting device can be wetted with cage molecules. As a result, the fragrance molecules attached to the wall sections and / or inner surfaces can be enclosed by the cage molecules. Thus, the perfume is neutralized, the perfume molecules are no longer active. Thus, a "Nachausgasen" and thus "Nachriechen" in the vehicle interior after switching off the scenting device can be prevented.

In an alternative embodiment of the scenting device, the cage molecules, in particular spheres, in the wall of the housing, the cartridge and / or the perfume-leading Be installed lines. The cage molecules are preferably added to the plastic of the wall during manufacture as an additive in the base material so that they are already involved in the plastic granules. Alternatively, the cage molecules may already be added to the molten plastic during the injection molding process to produce the parts, such as the housing, mixing chamber or conduits. In this case, the cage molecules can be distributed in the liquefied plastic. The cage molecules do not lose their adsorptive property when bound in the plastic. The cage molecules, in particular spheres, inserted in the wall sections or the complete wall can enclose and thus neutralize the fragrance molecules adsorbed on the wall.

The cleaning device may comprise a heating device, which is set up to allow, at least in regions, a heating or heating of wall surfaces of the housing, the cartridge, the mixing chamber and / or the lines. By heating a heating of the plastic of the wall and / or the respective wall portion can be achieved. Due to the heating of the wall, the fragrance molecules adsorbed to the wall can dissolve their surface bonding and the fragrance molecules go into the gas phase. Thus, the perfume molecules may enter an airflow past the wall. This can lead to a "smoldering" for the period of bake, as more perfume can get into the air stream. This can be taken into account in the control of the scenting device, in particular in the chronological sequence of activation and deactivation of the scenting device.

Preferably, the heating of the wall takes place by means of heated air, wherein the air can be heated by means of different devices. The air can be heated by means of a PTC element (Positive Temperature Coefficient). Alternatively, the air can be heated by resistance heating, wherein the plastic of the wall is an electrically conductive plastic. But it can also simply the warm air from an air conditioner of the motor vehicle are passed to the walls of the housing, the cartridge, the mixing chamber and the lines over to bring the wall or the wall portion each to a higher temperature. It may also be provided a combination of the above-described means for heating the air.

It can be provided to incorporate into the fragrancing an ionizing, by means of which an ionization of the wall surfaces of the housing, the cartridge, the mixing chamber and / or the perfume-carrying lines can be done. By the ionizing reactive oxygen and / or reactive oxygen compounds can be generated. The reactive oxygen is present as charged particles, in particular as ions. These may be unselective chemical substances, for example HO ₂ ^- or O ₂ ^- . As a result, the fragrance, which usually has organic substances, are split and thus chemically decomposed. As a result, the fragrance molecules are destroyed. As reaction products typically arise water (H ₂ O) and carbon dioxide (CO ₂ ). Due to the decomposition, the fragrances can no longer be active and are no longer perceived. Preferably, a sealed air volume can be treated with the ionizer.

The cleaning device may further be configured to effect a flooding of the wall surfaces of the housing, the cartridge, the mixing chamber and / or the perfume-carrying lines of the housing, the cartridge, the mixing chamber and / or the perfume-carrying lines with ozone. The ozone is a radical that can reach the chemical decomposition of the scent molecule. Again, the fragrance can not be perceived after the ozone flooding, it can come in particular for odor neutrality. Preferably, a sealed air volume can be flooded with ozone.

The cleaning device may also comprise an irradiation device for irradiating the wall surfaces of the housing, the cartridge, the mixing chamber and / or the perfume-carrying lines with UV light. UV light ultraviolet light) is invisible to humans electromagnetic radiation with a wavelength that is shorter than that of the visible light for humans, but longer than that of the X-rays. The electromagnetic radiation is typically in a wavelength range less than 400 nm. In this case, unselective radicals such as OH radicals and O radicals can be generated and the chemical compound of the perfume molecules can be destroyed by them and the perfume molecule can thus be decomposed. Preferably, a sealed air volume can be irradiated with the UV light and treated with it.

The object is also achieved by an air conditioning system, in particular for a motor vehicle, with a scenting device according to the invention.

Furthermore, the object is achieved by means of a cleaning method for cleaning wall sections and / or wall surfaces of a scenting device according to the invention, wherein the wall surfaces of the housing, the cartridge, the mixing chamber and / or the perfume-leading Purging the lines of scenting device to remove adsorption of perfume on the wall surfaces.

For purification, cage molecules, in particular spheres, are preferably used, in which perfume molecules can be enclosed.

Alternatively or additionally, in the cleaning method for cleaning the wall surfaces, a heating of the wall surfaces can be used, in particular a heating of the wall surfaces to a temperature which is above a desorption temperature for the fragrance, in particular the individual fragrance molecules.

In particular, in the purification process reactive oxygen molecules, ozone and / or UV irradiation of the wall surfaces can be used such that a decomposition of the perfume molecules takes place.

The use of reactive oxygen molecules, ozone and / or UV irradiation may additionally result in disinfection of the walls or overall the air conditioning.

The cleaning device can be retrofitted and integrated into known scenting systems.

Further advantageous embodiments are described by the following description of the figures and by the subclaims.

Brief description of the figures of the drawing

The invention will be explained in more detail on the basis of at least one embodiment with reference to the figures of the drawing. In a schematic representation:

1 a schematic representation of a fragrancing device

2 a schematic representation of an exemplary cage molecule,

3 a flow diagram of a method for operating a Beduftungsvorrichtung,

4 a schematic representation of a cleaning device according to the invention.

Preferred embodiment of the invention

1 shows a schematic representation of an embodiment of a fragrancing device 10 according to the invention.

The scenting device 10 has at least one cartridge 12 for storing a fragrance, and a reservoir 14 , for example in the form of another cartridge 14 , for the storage of cage molecules, in particular spheres. Furthermore, the scenting device 10 a mixing room 16 on. The reservoir 14 is by means of a line 18 with the mixing room 16 connected so that the cage molecules, in particular spheres in the mixing chamber 16 can flow. The cartouche 12 is with a lead 20 also with the mixing room 16 connected. Thus, in the mixing room 16 Caged molecules and perfume molecules with through a conduit 22 absorbable air are mixed and form a fragrance / air mixture, which the mixing room 16 through a pipe 24 can leave. However, a cage molecule / air mixture can also be formed if cage molecules enter the mixing chamber 16 have flowed.

The administration 18 is at a passage opening 26 to the reservoir 14 connected. The administration 20 is at a passage opening 28 to the cartouche 12 connected so that perfume through the passage opening 28 into the pipe 20 can get. Through a passage opening 30 Can the perfume out of the pipe 20 in the mixing room 16 reach. The cage molecules can pass through the opening 32 in the mixing room 16 reach. The cartouche 12 , the mixing room 16 and the reservoir 14 are in a housing 34 arranged. In the pipes 18 . 20 . 22 and or 24 are preferred valve devices 36 . 38 . 40 and or 42 or at least flaps 36 . 38 . 40 and or 42 arranged, by means of which the lines 18 . 20 . 22 and or 24 are obvious and / or lockable. The valve devices and / or flaps are preferred 36 . 38 . 40 and or 42 controllable, wherein the control of the valve devices 36 . 38 . 40 and or 42 can be incorporated in a control of an air conditioner, not shown. The control can also be a simple operation by means of snaps or similar devices.

2 shows an exemplary cage molecule 44 , which can also be referred to as a sphere. cage molecules 44 are typically macromolecules. An example of cage molecules 44 are heterofullerene-derived structures in which partial fragments of the fullerene have been replaced by porphine, phthalocyanine or subphthalocyanine units. cage molecules 44 are typically not built from fullerenes, but from smaller trifunctional monomers that connect the resulting macrocycles.

Here have spheres 44 both the properties of the respective macrocycle and fullerene-like properties, in particular catalytic and sensory properties. It is also possible inorganic cage molecules 44 For example, the inorganic cage molecule As4Sn (n = 3, 4).

cage molecules 44 have at least one cavity 46 on. In the cavity 46 the cage molecules or spheres 44 Fragrance molecules can easily penetrate and be "captured" in the cage molecule, so to speak. The fragrance molecules are permanently in the cage molecule 44 are included and thus deactivated and no longer perceptible as a fragrance. This is typically not possible with fullerenes.

3 shows a method of operating a scenting device 10 with a cleaning process step. The method may be a portion of a general method for operating an air conditioning system. In step 100 the scenting system is switched on or switched on. In step 102 the fragrance is selected. Indicates the scenting device 10 only one fragrance with a cartouche 12 on, eliminates the process step 102 typically. step 104 concerns the opening of the valve 38 , whereby perfume in the mixing room 16 can flow in. In the process step 106 becomes the valve 40 open, and air can enter the mixing room 16 penetration. It may form a fragrance / air mixture. In the process step 108 becomes the valve 42 opened and the perfume / air mixture can penetrate through the lines of the air conditioner in a vehicle interior of the motor vehicle and improve the indoor climate. In the process step 110 the scenting is switched off. This is preferably done by the valve 38 and / or the valve 42 getting closed. Below in the process step 112 can a cleaning process 112 be started by the valve is closed 38 the valve 36 is opened and cage molecules 44 into the mixing chamber 16 can penetrate. It initially forms with the rest in the mixing chamber 16 existing fragrance molecules, a fragrance / cage molecule / air mixture, wherein the cage molecules 44 the fragrances in the cavity 46 will be included. The cage molecules 44 they will also be on walls 48 of the mixing room and / or walls 50 the line 24 include adsorbed perfume molecules. Thus are the walls 48 and 50 free of perfume molecules when a cage molecule / air mixture for a certain time in the scenting device 10 was active. The valve 36 is preferably closed only when no perfume in the vehicle interior is more perceptible. With the closing of the valve 36 and optionally also of the valve 42 is the cleaning step 112 completed.

The administration 24 is representative of the other perfume-leading lines in the air conditioning. The process became exemplary for a scenting device 10 according to 1 described.

The reservoir 14 with cage molecules 44 and the line 18 with the valve 36 form a cleaning device 52 the scenting system 10 out. This is schematically in 4 shown. The cleaning device 52 This can also be retrofitted in an air conditioner. In this case, the cleaning device is then preferably the mixing chamber 16 downstream and the cage molecule 44 / Air mixture is in a pipe 54 with a wall 55 the air conditioning fed. In this case, then, the fragrances, which are located in the downstream, not shown, line system of the cage molecules 44 Be "captured". From the mixing room 16 inflowing perfume / air mixture, which by on the wall 48 . 50 and or 55 adsorbed fragrance results can be neutralized.

In addition, also an ionizer 56 , an ozone-providing facility 56 or a pipe, the ozone in the pipe 54 feeds, be provided. Additionally or alternatively, a UV irradiation device 60 with the line 54 be connected and neutralize an air mixture, in particular a perfume / air mixture by the fragrance molecules decomposes.

All listed facilities 52 . 56 . 58 and 60 can also be different than in the 4 be arranged sequence shown in the air conditioning. The purified air, represented by the arrow 62 can then be in a vehicle interior 64 be initiated.

The execution of the scenting device 10 and the cleaning device 52 are exemplified here to explain the function of the cleaning process. There are also other arrangements and / or embodiments cartridge 12 , Reservoir 14 , Cables 24 . 54 and valves 36 . 38 . 40 and or 42 possible. In the pipe system 54 the air conditioning system may also be located in non-illustrated locations trapped air volumes in which the fragrance / air mixture can accumulate, which then through the cleaning step 112 can be neutralized.

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

• WO 2009/083157 A1 [0004]
• WO 2004/037304 A1 [0005]
• DE 10327859 A1 [0006]
• DE 10328747 A1 [0007]
• DE 10327122 A1 [0008]
• DE 10346182 A1 [0009]
• EP 1854647 B1 [0010]
• EP 2039545 B1 [0011]
• EP 1941915 B1 [0012]
• DE 102007010796 A1 [0013]
• EP 2143575 A1 [0014]
• EP 2143577 A1 [0015]
• DE 102008013218 A1 [0016]
• DE 102008052589 A1 [0017]
• DE 102008011174 A1 [0018]
• EP 2143576 B1 [0019]
• EP 1961594 B1 [0020]
• DE 102007038222 A1 [0021]
• DE 102008033884 A1 [0022]
• EP 2058013 A1 [0023]
• EP 2095980 A3 [0024]
• DE 102008021460 A1 [0025]
• DE 102007044978 A1 [0026]
• EP 2085258 B1 [0027]
• WO 2009/003704 A3 [0028]
• EP 2164531 B1 [0028, 0035]

Claims (14)

Scenting device, in particular for a motor vehicle, comprising: - a housing ( 34 ), in which at least one cartridge ( 12 ) is arranged for storing a fragrance, wherein the cartridge ( 12 ) a passage opening ( 28 ) for the fragrance, - a mixing room ( 16 ) having an air-permeable opening and in which the fragrance is miscible with the air to form an air / perfume mixture, perfume-carrying conduits ( 24 . 54 ) through which the air / perfume mixture can flow, characterized in that a cleaning device ( 52 ) for wall sections ( 48 . 50 . 55 ), which have come into contact with the fragrance and / or the fragrance / air mixture, in particular of the housing ( 34 ), the mixing chamber ( 16 ) as well as the perfume-carrying lines ( 20 . 24 . 54 ) is provided. Scenting device according to claim 1, characterized in that the cleaning device ( 52 ) Cage Molecules ( 44 ), in particular spheres. Scenting device according to claim 2, characterized in that the cage molecules ( 44 ), in particular spheres, in a reservoir ( 14 ), the reservoir ( 14 ) a passage opening ( 26 ) having. Scenting device according to claim 2, characterized in that the cage molecules ( 44 ), in particular spheres, in the wall of the housing ( 34 ), the cartridge ( 12 ) and / or the perfume-carrying lines ( 20 . 24 . 54 ) are installed. Scenting device according to one of the preceding claims, characterized in that the cleaning device ( 52 ) has a bake-out device which at least partially heats up wall surfaces ( 48 . 50 . 55 ) of the housing ( 34 ), the cartridge ( 12 ), the mixing chamber ( 16 ) and / or the perfume-carrying lines ( 20 . 24 . 54 ) is set up. Scenting device according to claim 5, characterized in that the heating by means of heated air can be realized, wherein the air is heated by means of PTC element, the air is heated by means of resistance heating in an electrically conductive plastic and / or heated, warm air from an air conditioner of the motor vehicle on the walls of the housing ( 34 ), the cartridge ( 12 ), the mixing chamber ( 16 ) and / or the perfume-carrying lines ( 20 . 24 . 54 ) is passable. Scenting device according to one of the preceding claims, characterized in that an ionizing device ( 56 ) is provided by means of an ionization of the wall surfaces of the housing ( 34 ), the cartridge ( 12 ), the mixing chamber ( 16 ) and / or the perfume-carrying lines ( 20 . 24 . 54 ) and / or a foreclosed air volume can take place. Scenting device according to one of the preceding claims, characterized in that the cleaning device ( 52 ), a flooding of the housing ( 34 ), the cartridge ( 12 ), the mixing chamber ( 16 ) and / or the perfume-carrying lines ( 20 . 24 . 54 ) of the housing ( 34 ) and / or a closed volume of air with ozone, Scenting device according to one of the preceding claims, characterized in that the cleaning device ( 52 ) an irradiation device ( 60 ) for irradiating the wall surfaces of the housing ( 34 ), the cartridge ( 12 ), the mixing chamber ( 16 ) and / or the perfume-carrying lines ( 20 . 24 . 54 ) and / or trapped air volume with UV light. Air conditioning system, in particular for a motor vehicle, having a scenting device ( 10 ) according to one of claims 1 to 9. Cleaning method for cleaning a scenting device according to one of claims 1 to 9, characterized in that wall sections and / or wall surfaces ( 48 . 50 . 55 ) of the housing ( 34 ), the cartridge ( 12 ), the mixing chamber ( 16 ) and / or perfume-carrying lines ( 20 . 24 . 54 ) of the scenting device ( 10 ) to prevent adsorption of perfume on the wall surfaces ( 48 . 50 . 55 ) to remove. Cleaning method according to claim 11, characterized in that cage molecules ( 44 ), in particular spheres, can be used, in which fragrance molecules can be included. Cleaning method according to one of the preceding claims 11 or 12, characterized in that for cleaning a heating of the wall sections and / or Wall surfaces ( 48 . 50 . 55 ), in particular a heating of the wall surfaces ( 48 . 50 . 55 ) to a temperature which is above a desorption temperature for the perfume molecules. Cleaning method according to one of the preceding claims 11 to 13, characterized in that for the purification of reactive oxygen molecules, ozone and / or UV irradiation of the wall surfaces ( 48 . 50 . 55 ) or a closed volume of air can be used such that a decomposition of the perfume molecules takes place.

Images