Air purification device

Abstract

The present invention relates to a cleaning device (1) for cleaning air, which has a filter medium (2) and upstream of the filter medium (2) an electrode arrangement (4) with an electrode (5) and a counter electrode (6) of an ionizer device (3), between which an electrical voltage is applied during operation for corona discharge. An improved and long-lasting cleaning effect is achieved by electrically connecting the counter electrode (6) to the filter medium (2) in a reactivation mode. The invention also relates to an air conditioning system (100) and a vehicle (200) with such a cleaning device (1).

Description

[0001] The present invention relates to a purification device for purifying air, particularly for a vehicle. The invention also relates to an air conditioning system and a vehicle with such a purification device.

[0002] Air purification is desirable in numerous applications. For this purpose, purification devices containing a filter medium are typically used. To clean the air, the air flows through the filter medium, which filters out particles such as dust, thus purifying the air.

[0003] It is known to equip the cleaning device with an ionizer device.

[0004] Such a cleaning device is known, for example, from EP 3 488 933 A1. The cleaning device comprises an ionizer device with an electrode and a counter electrode upstream of a filter medium. The filter medium is arranged between two further electrodes arranged downstream of the ionizer device. During operation, opposite-polar electrical voltages are present between the electrode and counter electrode of the ionizer device and the electrodes between which the filter medium is arranged.

[0005] The present invention is concerned with the object of providing improved or at least different embodiments for a cleaning device of the type mentioned at the outset as well as for an air conditioning system and a vehicle with such a cleaning device, which are characterized in particular by a long-lasting cleaning effect of air.

[0006] This object is achieved according to the invention by the subject matter of the independent claims. Advantageous embodiments are the subject matter of the dependent claims.

[0007] The present invention is therefore based on the fundamental idea of ​​generating an electrostatic charge in the filter medium in a cleaning device comprising a filter medium and an ionizer device arranged upstream of the filter medium by electrically connecting the filter medium to a counter electrode of the ionizer device. According to the invention, it was recognized that the electrical connection of the filter medium to the counter electrode leads to an electrostatic buildup of charge carriers in the filter medium, hereinafter also referred to as filter charge carriers. These charge carriers, in synergistic interaction with charge carriers in the air generated by the ionizer device, hereinafter also referred to as air charge carriers, which include, in particular, ionized particles in the air, lead to improved and long-lasting filtering of particles from the air.The electrostatic buildup in the filter medium is not required permanently, so the electrical connection between the filter medium and the counter electrode is used only for the electrostatic buildup of filter charge carriers, also referred to as reactivation. This results in a long-lasting improvement in the cleaning effect and simplified operation of the cleaning device.

[0008] According to the inventive concept, the cleaning device has the filter medium for filtering particles from the air. A flow path for the air leads through the filter medium. The cleaning device also has an ionizer device. The ionizer device comprises an electrode arrangement through which the flow path leads upstream of the filter medium. The electrode arrangement has an electrode with at least one emitter and a counter electrode, between which an electrical voltage is applied during operation for the corona discharge in the air. The filter medium has at least one electrically conductive section and at least one dielectric section. The respective at least one electrically conductive section is also referred to below as the conductive section and the respective at least one dielectric section is also referred to below as the static section.The filter medium therefore has at least one conducting section and at least one static section. The at least one conducting section and the at least one static section follow one another along the flow path. In a first operating mode, at least one of the at least one conducting sections, advantageously the respective conducting section, is electrically connected to the counter electrode, whereas this electrical connection is disconnected in a second operating mode. The second operating mode is also referred to below as the control operating mode and the first operating mode as the reactivation mode. The cleaning device further comprises a control device designed accordingly for operating the cleaning device. The control device is therefore designed such that it operates the cleaning device successively in the control operating mode and in the reactivation mode.In the reactivation mode, at least one of the at least one conducting sections, in particular the respective conducting section, is electrically connected to the counter electrode, whereas in the control operating mode the electrical connection is separated.

[0009] The filter medium is preferably electrostatically charged in advance, especially before initial operation in the cleaning device. In reactivation mode, this charge is at least partially restored, which may decrease during operation of the cleaning device, especially in regular operating mode. In reactivation mode, the previously existing electrostatic charge is thus at least partially reactivated.

[0010] During operation of the ionizer device, the respective emitter serves to emit electrons. In reactivation mode, electrons can pass from the emitter through the air to the filter medium, thus leading to reactivation.

[0011] Preferably, the respective emitter is designed as a mandrel or needle.

[0012] In principle, the filter medium can be designed in any way as long as it cleans the air by absorbing particles, preferably also odors, and has at least one guide section and at least one static section.

[0013] For example, at least one of the at least one static sections may consist of fibers or comprise fibers.

[0014] For example, at least one of the at least one guide sections may be activated carbon or comprise activated carbon.

[0015] Preferably, the respective static section and the respective conducting section are formed as a single layer in the filter medium. This means that the respective conducting section is an electrically conductive layer, and the respective static section is a dielectric layer in the filter medium. This results in improved flow and cleaning efficiency.

[0016] The cleaning device is used to clean air and can be used in any application.

[0017] The cleaning device can be used, for example, in an air conditioning system, in particular in a so-called “HVAC system”, where the English abbreviation “HVAC” stands for “Heating, Ventilating and Air Conditioning”.

[0018] The air conditioning system preferably has at least one heat exchanger through which air flows during operation, so that during operation of the heat exchanger heat is transferred from the air to the heat exchanger, or vice versa.

[0019] The cleaning device is used in particular in a vehicle. Within the vehicle, the cleaning device is primarily used to clean the air supplied to the interior of the vehicle. The cleaning device can be part of such an air conditioning system.

[0020] For corona discharge, a voltage in the kilovolt range is advantageously applied between the electrode and the counter electrode. For example, the voltage is between 5 kV and 11 kV, especially 8 kV.

[0021] The cleaning device preferably has a voltage source for applying the electrical voltage between the electrode and the counter electrode. The electrode and counter electrode are each electrically connected to one pole of the voltage source.

[0022] In preferred embodiments, the electrical connection of the counter electrode to the at least one conducting section is made by means of the voltage source. In addition to improved operational reliability, this also results in simple implementation. During operation of the ionizer device, the electrode is connected to a first pole, in particular to a negative pole, of the voltage source, and the counter electrode is connected to a second pole, in particular to a counter pole and thus a counter potential, of the voltage source. The control device is designed such that, in the reactivation mode, it electrically connects at least one of the at least one conducting sections to the second pole of the voltage source, so that the at least one conducting section and the counter electrode are electrically connected by means of the voltage source.

[0023] In addition, the control device is designed in such a way that it disconnects the electrical connection to the second pole in the control operating mode.

[0024] The "poles" in this sense are those that arise due to a potential difference, which is advantageously provided by the voltage source. Accordingly, the opposite pole can also be the grounded pole.

[0025] Preferred embodiments are those in which a negative corona discharge occurs during operation of the ionizer device. A negative corona discharge preferably occurs both in the control mode and in the reactivation mode. Accordingly, the electrode, in particular the at least one emitter, is negatively polarized, and the counter electrode forms the counter potential.

[0026] The order of the at least one guide section and the at least one static section along the flow path can be arbitrary.

[0027] Preferred embodiments are those in which the respective at least one conducting section is arranged downstream of one of the at least one static sections. This means that at least one static section is arranged along the flow path between each of the at least one conducting section and the electrode arrangement. This leads to improved reactivation in the reactivation mode.

[0028] In preferred variants, the electrical connection between the counter electrode and the filter medium is established by means of an electrical conductor. This means that an electrical conductor electrically connects the counter electrode, preferably via the second pole of the voltage source, to at least one of the at least one conducting sections, advantageously to the respective conducting section.

[0029] This electrical connection can be opened and closed using a switch on the cleaning device. The control device opens the switch in normal operating mode and closes it in reactivation mode. The control device is designed accordingly. When the switch is open, the electrical connection between the counter electrode and the at least one conductive section is interrupted, and when the switch is closed, the electrical connection is established. This allows for simple and reliable implementation of the operating modes.

[0030] The control device can be designed as desired to select the respective operating mode and to switch between the normal operating mode and the reactivation mode.

[0031] Preferably, the duration of the control mode is considerably longer than the duration of the reactivation mode. This prevents, in particular, excessive electrostatic charging of the filter medium and thus, in particular, the repulsion of airborne charge carriers by the filter medium. This means that the cleaning effect is improved.

[0032] Advantageously, the duration of each reactivation mode is between 1 minute and 10 minutes. This means that the operating time in each reactivation mode is between 1 minute and 10 minutes. For example, the operating time of each reactivation mode is between 2 and 5 minutes, in particular 5 minutes.

[0033] For example, the control device can be designed such that an operating time in the normal operating mode is at least ten times an operating time in the reactivation mode.

[0034] It is conceivable to switch between the regular operating mode and the reactivation mode at predetermined time intervals. The control device is thus designed such that it switches between the regular operating mode and the reactivation mode at predetermined time intervals. For this purpose, the control device can comprise a timer. The operating time of the respective regular operating mode is preferably longer than the operating time of the respective reactivation mode.

[0035] Alternatively or additionally, it is conceivable to switch between the control mode and the reactivation mode if the air quality downstream of the filter medium is not sufficiently high. For this purpose, in preferred embodiments, the cleaning device has a sensor device arranged downstream of the filter medium for determining a measured value representing the air quality. The control device is connected to the sensor device and is designed such that it switches from the control mode to the reactivation mode if the measured value determined by the sensor device falls below a predetermined limit.

[0036] The measured value is, in particular, a measured value that represents or encompasses the dust and / or particulate matter content in the air. Accordingly, the sensor device may comprise a dust sensor and / or a particulate matter sensor.

[0037] Preferably, the at least one emitter and the filter medium are spaced apart from one another, wherein a distance between at least one of the at least one emitters and the filter medium along the flow path is between 0 mm and 30 mm, in particular 7 mm. Preferably, the distance between the foremost static section facing the at least one emitter and at least one emitter along the flow path is between 0 mm and 30 mm, in particular 7 mm. Thus, effective and rapid reactivation is achieved with sufficiently high operational reliability in reactivation mode. Consequently, an improved cleaning effect is achieved with sufficiently high operational reliability.

[0038] The emitters can protrude towards the counter electrode or towards the filter medium.

[0039] The electrode may comprise rods spaced apart from one another transversely to the flow path, from each of which at least one emitter protrudes, preferably towards the counter electrode.

[0040] The distance between the bars is advantageously between 20 mm and 60 mm, for example 30 mm.

[0041] In particular, at least two emitters protrude from the respective rod, spaced transversely to the flow path and transversely to the spacing of the rods, toward the filter medium and / or toward the counter electrode. The distance between the emitters of a rod is advantageously between 10 mm and 30 mm, for example, 20 mm.

[0042] The electrode, in particular the emitter, for example the respective rod, advantageously has a high electrical conductivity and is preferably made of stainless steel.

[0043] In principle, the counter electrode can be designed in any way. The counter electrode preferably has high electrical conductivity and is made of stainless steel, for example.

[0044] The counter electrode is advantageously permeable to air. The flow path therefore leads through the counter electrode. This leads to improved generation of air charge carriers.

[0045] In preferred embodiments, the counter electrode has an electrically conductive grid, in particular, an electrically conductive grid through which the flow path passes. This results in reduced flow resistance in the cleaning device. This allows, in particular, the cleaning device to be operated more effectively and designed more compactly.

[0046] The grid preferably has a mesh size between 1 mm and 6 mm, for example 3 mm

[0047] It is understood that in addition to the cleaning device, the air conditioning system and the vehicle with the cleaning device also belong to the scope of this invention.

[0048] Further important features and advantages of the invention emerge from the subclaims, from the drawings and from the associated description of the figures based on the drawings.

[0049] It is understood that the features mentioned above and those to be explained below can be used not only in the combination specified in each case, but also in other combinations or on their own, without departing from the scope of the present invention.

[0050] Preferred embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description, wherein the same reference numerals refer to the same or similar or functionally identical components.

[0051] They show, schematically Fig. 1 a highly simplified, circuit diagram-like representation of a cleaning device in a vehicle air conditioning system, Fig. 2 a simplified sectional view of the cleaning device, Fig. 3 an isometric exploded view of the cleaning device with a circuit diagram representation of electrical connections, Fig. 4 a detailed view of a filter medium of the cleaning device.

[0052] A cleaning device 1, as shown for example in the Fig. 1 to 4, serves to clean air. For this purpose, a flow path P of the air leads through the cleaning device 1. The cleaning device 1 can, as Fig. 1, can be used in an air conditioning system 100 and / or in a vehicle 200. The vehicle 200 can include the air conditioning system 100. After passing through the cleaning device 1, the air flows into an interior 201 of the vehicle 200. The interior 201 is therefore arranged downstream of the cleaning device 1. The air conditioning system 100 has at least one heat exchanger 101 for heat transfer with the air. The flow path P leads through the heat exchanger 101. In Fig. 1, a single heat exchanger 101 of the air conditioning system 100 is visible, which is arranged purely as an example downstream of the cleaning device 1. Of course, the air conditioning system 100 can also have more heat exchangers 101. At least one of the at least one heat exchanger 101 is in a Fig. 1, through which a fluid, for example a refrigerant or a coolant, circulates fluidically separated from the air during operation of the air conditioning system 100.

[0053] The cleaning device 1 has, in particular the Fig. 2 and Fig. 3, has a filter medium 2 for filtering particles from the air. The flow path P of the air leads through the filter medium 2. During operation, the air flows through the filter medium 2, whereby the filter medium filters particles, for example dust and fine dust, from the air. The filter medium 2 preferably also filters odors from the air. The filter medium 2 is designed accordingly. In its new state, the filter medium 2 is preferably electrostatically charged, i.e. it has charge carriers (not shown), which are also referred to below as filter charge carriers. The cleaning device 1 also has an ionizer device 3 for corona discharge in the air and, associated therewith, for charging and ionizing molecules and particles in the air. By means of the ionizer device 3, charge carriers are generated in the air, which are also referred to below as air charge carriers.The ionizer device 3 has an arrangement 4 of electrodes 5, 6 for the corona discharge, which is also referred to below as the electrode arrangement 4. The electrode arrangement 4 thus has electrodes 5, 6 with different polarity during operation, which are also referred to below as electrode 5 and counter electrode 6 for easier differentiation. An electrical voltage of, for example, a few kV is therefore applied between the electrode 5 and counter electrode 6 during corona discharge operation. The flow path P leads through the electrode arrangement 4 upstream of the filter medium 2. The electrode 5 has emitters 7, which emit electrodes during operation of the ionizer device 3. In the exemplary embodiments shown, the emitters 7 are each designed as a mandrel 8. The respective emitter 7 protrudes, for example, in the direction of the filter medium 2 or in the direction of the counter electrode 6.In the illustrated embodiments, electrode 5 and counter electrode 6 are each made of stainless steel, for example. Fig. 4 shows a detailed view of the filter medium 2.

[0054] It can be seen that the filter medium 2 has at least one electrically conductive section 9, hereinafter also referred to as conductive section 9, and at least one dielectric section 10, hereinafter also referred to as static section 10, which follow one another along the flow path P. In Fig. 4, purely by way of example and for the sake of simplicity, it is assumed that the filter medium 2 has a static section 10 and a guide section 9. In the figures shown, the static section 10 and a guide section 9 are each formed as a layer 11. In the exemplary embodiments shown, the respective at least one guide section 9 is arranged downstream of one of the at least one static sections 10. In the exemplary embodiments shown, this means that the static section 10 is arranged upstream of the guide section 9.

[0055] How Fig. 4, the filter medium 2 in the illustrated embodiments is a folded filter medium 2 in which the layers 11 are folded. The static section 10, for example, comprises fibers 12, thus in the illustrated embodiments a layer 11 made of fibers 12. The conducting section 9, for example, comprises activated carbon 13, thus in the illustrated embodiments a layer 11 made of activated carbon 13.

[0056] As will be explained below, it is possible with the cleaning device 1 to establish an electrical connection between the counter electrode 6 and the conducting section 9. This is done by means of a Fig. 3 indicated control device 14. In a first operating mode, the conductive section 9 is electrically connected to the counter electrode 6. In a second operating mode, in contrast, the electrical connection of the conductive section 9 to the counter electrode 6 is severed. The second operating mode is also referred to below as the control operating mode and the first operating mode as the reactivation mode. In the reactivation mode, there is a transfer of charge carriers, in particular of electrons emitted from the at least one emitter 7, to the filter medium 2. This leads to a rebuilding of the electrostatic charge of the filter medium 2, which decreases during the operation of the cleaning device 1. The cleaning device 1 is then operated again in the control operating mode. The cleaning device 1 is therefore operated successively, in particular alternately, in the control operating mode and in the reactivation mode.The operating time of the respective reactivation mode is advantageously less than 10 minutes, for example, between 1 and 10 minutes. The operating time of the respective regular operating mode is also advantageously considerably longer than the operating time of the respective reactivation mode. For example, the operating time of the regular operating mode is at least ten times the operating time of the reactivation mode.

[0057] In the embodiments shown, the electrical connection between the conductive section 9 and the counter electrode 6 is made by means of a Fig. 3 shown and in Fig. 4 indicated electrical conductor 15.By means of a merely in Fig. This electrical connection can be established and broken using the switch 16 shown in Figure 3. In Fig. 3, switch 16 is arranged purely by way of example in conductor 15. In reactivation mode, switch 16 is closed, so that counter electrode 6 and conducting section 9 are electrically connected to each other via conductor 15. In normal operating mode, switch 16 is open, so that the electrical connection between counter electrode 6 and conducting section 9 is severed. Fig. 3 shows the open state of the switch 16 and thus the control mode. The control device 14 is connected to the switch 16 and is designed such that it controls the switch 16, as shown in Fig. 3 indicated by a double arrow, opens in normal operation mode and closes in reactivation mode.

[0058] How Fig. 3, the cleaning device 1 in the exemplary embodiments shown has a voltage source 17, by means of which the voltage between electrode 5 and counter electrode 6 is generated. To provide the voltage, the voltage source 17 has a first pole 18 and a second pole 19. In the exemplary embodiments shown, the first pole 18 is a negative pole 20 of the voltage source 17. The second pole 19 is a counter pole 21 and thus a counter potential to the negative pole 20, and therefore in particular also a grounded pole 22. Thus, during operation of the ionizer device 3, both in the control operating mode and in the reactivation mode, a negative corona discharge occurs in the air.

[0059] How Fig. 3, in the embodiments shown, the electrical connection of the counter electrode 6 to the conducting section 9 is effected by means of the voltage source 17. For this purpose, the conductor 15 electrically connects the second pole 19 to the conducting section 9 and thus the conducting section 9 also to the counter electrode 6. In this case, the switch 16, as in Fig. 3, be arranged between the second pole 19 and the conducting section 9 in the conductor 15. In the normal operating mode, the electrical connection of the conducting section 9 to the second pole 19 is thus severed, so that the electrical connection of the conducting section 9 to the counter electrode 6 is also severed.

[0060] A change between the normal operating mode and the reactivation mode can occur at predetermined intervals. The control device 14 is designed accordingly.

[0061] Alternatively or additionally, the cleaning device 1 can be a Fig. 2. The sensor device 23 serves to determine a measured value representing the air quality. In the exemplary embodiments shown, the sensor device 23 has a fine dust sensor 24. The measured value thus represents or contains a fine dust content in the air downstream of the filter medium 2. In this case, a change is made from the standard operating mode to the reactivation mode if the measured value falls below a predetermined limit, in particular if the fine dust content exceeds a predetermined value. The reactivation mode is advantageously maintained for the operating time described above and then a change is made back to the standard operating mode. The control device 14 is designed accordingly. The control device 14 is connected to the sensor device 23.

[0062] In the view of the Fig. 3 shows that the electrode 5, in the exemplary embodiments shown, has rods 25 spaced apart from one another transversely to the flow path, from which emitters 7 each protrude towards the counter electrode 6. In the exemplary embodiments shown, the electrode 5 has, purely by way of example, five such rods 25, each with six emitters 7. The rods 25, including the emitters 7, are identical in the exemplary embodiments shown, purely by way of example. The spacing between the successive rods 25 can be between 20 mm and 60 mm, for example 30 mm. The spacing between the emitters 7 following one another along the respective rod 25 can be between 10 mm and 30 mm, for example 20 mm.

[0063] As in particular Fig. 2, the emitters 7 and the filter medium 2 are spaced apart from one another. A distance of at least one of the at least one emitter 7, preferably the respective emitter 7, from the filter medium 2, preferably from the static section 10, along the flow path P is preferably between 0 mm and 30 mm, for example 7 mm.

[0064] In particular Fig. 3 that the counter electrode 6 in the embodiments shown is designed as a grid 26 through which the flow path P leads. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This 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

[0000] EP 3 488 933 A1

[0004]

Claims

[1] Cleaning device (1) for cleaning air, in particular for a vehicle (200), - with a filter medium (2) for filtering particles from the air, through which a flow path (P) of the air leads, - with an ionizer device (3) which has an electrode arrangement (4) through which the flow path (P) leads upstream of the filter medium (2), - wherein the electrode arrangement (4) comprises an electrode (5) with at least one emitter (7) and a counter electrode (6), between which an electrical voltage is applied during operation for corona discharge in the air, - wherein the filter medium (2) has at least one electrically conductive guide section (9) and at least one dielectric static section (10), which follow one another along the flow path (P), - with a control device (14) which is designed such that it operates the cleaning device (1) successively in a control mode and a reactivation mode, - wherein in the reactivation mode at least one of the at least one conducting sections (9), in particular the respective conducting section (9), is electrically connected to the counter electrode (6) and in the control operating mode the electrical connection is separated. [2] Cleaning device according to claim 1, characterized by , - that the cleaning device (1) has a voltage source (17) for applying the electrical voltage between the electrode (5) and the counter electrode (6), - that during operation of the ionizer device (3), the electrode (5) is connected to a first pole (18), in particular to a negative pole (20), of the voltage source (17) and the counter electrode (6) is connected to a second pole (19), to a counter pole (21), of the voltage source (17), - that the control device (14) is designed such that, in the reactivation mode, it electrically connects at least one of the at least one conducting section (9) to the second pole (19) of the voltage source (17), so that the at least one conducting section (9) and the counter electrode (6) are electrically connected by means of the voltage source (17), and separates the electrical connection to the second pole (19) in the control operating mode. [3] Cleaning device according to claim 1 or 2, characterized by that the respective at least one guide section (9) is arranged downstream of one of the at least one static sections (10). [4] Cleaning device according to one of claims 1 to 3, characterized by that the control device (14) is designed such that an operating time in the standard operating mode is at least ten times an operating time in the reactivation mode. [5] Cleaning device according to one of claims 1 to 4, characterized bythat the control device (14) is designed such that it switches between the control operating mode and the reactivation mode at predetermined time intervals. [6] Cleaning device according to one of claims 1 to 5, characterized by , - that the cleaning device (1) has a sensor device (23) arranged downstream of the filter medium (2) for determining a measured value representing the quality of the air, - that the control device (14) is connected to the sensor device (23) and is designed such that it changes from the control operating mode to the reactivation mode when the measured value determined by means of the sensor device (23) falls below a predetermined limit value. [7] Cleaning device according to one of claims 1 to 6, characterized by , - that an electrical conductor (15) connects the counter electrode (6), in particular via the second pole (19) according to claim 2, to at least one of the at least one conducting sections (9) - that the cleaning device (1) has a switch (16) for establishing and disconnecting the electrical connection of the counter electrode (6) to the filter medium (2) via the conductor (15), - that the control device (14) is designed such that it opens the switch (16) in the control operating mode and closes it in the reactivation mode. [8] Cleaning device according to one of claims 1 to 7, characterized by that in the control mode and in the reactivation mode the electrode (5) is negatively polarized and the counter electrode (6) forms the counter potential. [9] Cleaning device according to one of claims 1 to 8, characterized bythat the at least one emitter (7) and the filter medium (2) are spaced apart from one another, wherein a distance of at least one of the at least one emitter (7) to the filter medium (2) along the flow path (P) is between 0 mm and 30 mm, in particular 7 mm. [10] Cleaning device according to one of claims 1 to 9, characterized by that the electrode (5) has rods (25) spaced apart from one another transversely to the flow path (p), from each of which at least one emitter (7) protrudes. [11] Cleaning device according to one of claims 1 to 10, characterized by that the counter electrode (6) has or is an electrically conductive grid (26) through which the flow path (P) leads. [12] Cleaning device according to one of claims 1 to 11, characterized by that the operating time in reactivation mode is between 1 minute and 10 minutes. [13] Cleaning device according to one of claims 1 to 12, characterized bythat the respective static section (10) and the respective guide section (9) are formed as a layer (11) in the filter medium (2). [14] Air conditioning system (100), in particular for a vehicle (200), through which a flow path (P) of air leads, - with at least one heat exchanger (101) for heat transfer with the air, - with a cleaning device (1) according to one of the preceding claims arranged in the flow path (P). [15] Vehicle (200) with a cleaning device (1) according to one of claims 1 to 13, in particular with an air conditioning system (100) according to claim 14.

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