DE102018211583A1 - Air purification system with retrofittable fine dust particle filter for the vehicle interior - Google Patents

Abstract

The invention relates to an air purification system (10) for a vehicle interior (12) with at least one pollen filter (11), the air purification system (10) comprising at least one air inlet, the air purification system (10) being set up to provide air from the air inlet via the pollen filter (11) to guide, clean and discharge the cleaned air into the vehicle interior (12), the air purification system comprising at least one filter insertion compartment, the pollen filter (11) being arranged in the filter insertion compartment (13) and the filter insertion compartment (13) at least one The invention also relates to a corresponding filter insert compartment (13) for an air cleaning system (10) and a fine dust particle filter (16) for an air cleaning system (10), the fine dust particle filter (16) being set up subsequently into an extension of a filter insert compartment (13 ) of the air purification system (10).

Description

The invention relates to an air purification system for a vehicle interior with at least one pollen filter, the air purification system comprising at least one air inlet, the air purification system being set up to guide air from the air inlet via the pollen filter, to clean it and to release the cleaned air into the vehicle interior.

Fine dust particles are tiny particles (smaller than 1 µm (micrometer)) that are so small that they do not sink to the ground immediately after being ejected due to their size and nature, but remain in the air for a longer period of time.

Filter systems for vehicles are currently known in the prior art which filter particles, in particular pollen, out of the air.

The document CN107719073A discloses, for example, a HEPA filter which is designed in the interior air system with a retrofit option for existing vehicles.

The document FR2819451 A1 discloses a particulate filter that is used in an air cabin system and that is replaced by heat.

The document US9687769 B2 discloses a HEPA cabin filter. This filter has a particle efficiency of at least 99.97% with a particle size of 0.3 µm (micrometer).

Filter systems that are installed in vehicles, however, have to meet ever higher demands due to the increasing load.

Today it is known that especially the smallest fine dust particles between 0.01 µm (micrometer) and 0.3 µm (micrometer) have to be considered. It is therefore important to adapt and improve the previously known filter systems to the latest knowledge regarding particulate matter pollution.

The object of the invention is therefore to provide an improved air cleaning system for a vehicle interior.

This object is achieved by the air purification system according to claim 1 and a filter insert according to claim 8 and by a fine dust particle filter according to claim 10. Further developments and advantageous refinements are the subject of the dependent claims. Further advantages and features result from the general description and the description of the exemplary embodiments.

The present invention relates to an air purification system for a vehicle interior with at least one pollen filter, the air purification system comprising at least one air inlet, the air purification system being set up to guide air from the air inlet via the pollen filter, to clean it and to release the cleaned air into the vehicle interior.

According to the invention, the air cleaning system comprises at least one filter insertion compartment, the pollen filter being arranged in the filter insertion compartment and the filter insertion compartment having at least one extension. The at least one extension is set up to accommodate at least one further filter, in particular a fine dust particle filter. The air purification system according to the invention is thus retrofittable, so that the vehicle can also be retrofitted, for example with a fine dust particle filter.

The filter insert compartment is usually accessible from the engine compartment of a vehicle. The pollen filter is typically inserted into the extension from above. The extension can be spatially formed in the area of the pollen filter or spatially separated from the pollen filter. The extension can be designed as a receptacle or holding element which, in a possible embodiment, is designed to be fold-out and is designed to receive at least one fine dust particle filter and to place it in the air cleaning system. In an alternative embodiment, the extension is designed to be extendable.

In a development of the invention, the air purification system comprises the at least one further filter, which is accommodated in the at least one extension. The at least one further filter can be a fine dust particle filter or a further pollen filter. A fine dust particle filter as a further filter in addition to the already existing pollen filter offers the advantage that the air that passes through the air cleaning system is also cleaned of fine dust particles in addition to cleaning pollen. As a result, only cleaned air is directed into the vehicle interior to the vehicle interior. The at least one further filter can be arranged in the area of the pollen filter, on the pollen filter or separately from the pollen filter.

In an embodiment, as mentioned above, the at least one further filter is a fine dust particle filter. The air purification system set up in this way has the advantage that a clear Reduction of fine dust pollution in the interior of the vehicle is achieved. By cleaning the air twice with at least two filters, the air is cleaned better. Alternatively, another filter type can be installed as an additional filter.

In one embodiment, the fine dust particle filter is set up to filter fine dust particles between 0.01 μm (micrometer) and 3 μm (micrometer) from the air. Due to the design that the fine dust particle filter is set up to filter fine dust particles between 0.01 µm (micrometer) and 3 µm (micrometer) from the air, the fine dust particle filter is set up, even the smallest fine dust particles from the air, which are directed into the vehicle interior. to filter. The vehicle occupants are thus not only protected against heavy exposure to fine dust particles, as known in the prior art, from fine dust particles larger than 3 µm (micrometers), but even from the smallest fine dust particles.

In an advantageous development of the invention, the fine dust particle filter is set up to filter fine dust particles between 0.01 μm (micrometer) and 0.3 μm (micrometer) from the air. The air purification system with the fine dust particle filter thus greatly reduces the fine dust pollution in the vehicle interior.

According to the invention, the at least one further filter can be subsequently introduced or introduced into the air cleaning system. Subsequently, this means that the at least one further filter can be introduced or introduced into the air purification system at a time interval in a further step. This offers the advantage that vehicles can also be retrofitted with the improved air cleaning system. Due to the fact that a further filter, in particular a fine dust particle filter, can be introduced subsequently, air purification can be carried out as a function of an actual fine dust pollution of the air. The fine dust particle filter can be inserted into the filter drawer, for example.

In a further development of the invention, the air purification system is equipped with the fine dust particle filter inserted in the filter insert compartment, fine dust particles with a size between 0.01 µm (micrometer) and 1 µm (micrometer), in particular between 0.01 µm (micrometer) and 0.3 µm (Micrometer) from the air that is led into the vehicle interior. As a result, the air purification system according to the invention is particularly effective in reducing vehicle particulate matter pollution.

In one embodiment, the fine dust particle filter is arranged in the extension compartment in addition to the pollen filter. As a rule, the air flow passed through the air purification system thus flows both via the pollen filter and the fine dust particle filter. As a result, the air that is led through the air inlet through the air purification system is cleaned of pollen by the pollen filter and additionally cleaned of fine dust particles by the fine dust particle filter. The air passed through the air cleaning system is thus cleaned at least twice.

The fine dust particle filter is advantageously arranged downstream of the pollen filter in the flow direction. This is advantageous because the air is first pre-cleaned by the pollen, which is larger in diameter, before the air is passed over the fine dust particle filter. This prevents the particulate filter from becoming clogged quickly.

In an alternative embodiment, the fine dust particle filter is arranged upstream of the pollen filter in the flow direction. It is also conceivable that a fine dust particle filter is arranged upstream of the pollen filter by the direction of flow and a further fine dust particle filter is arranged downstream of the pollen filter. For example, in this embodiment, the upstream fine dust particle filter is designed to filter out coarser fine dust particles> 0.3 μm (micrometer) from the air, and the downstream fine dust particle filter is set up to filter out fine dust particles <0.3 μm (micrometer) out of the air. This configuration is a highly efficient filtering of fine dust particles from the air and can be used, for example, in regions that are particularly exposed.

In an advantageous development of the air cleaning system according to the invention, the fine dust particle filter can be replaced or inserted independently of the pollen filter. This offers the advantage that, depending on the degree of consumption, the filters can be removed separately and replaced by new filters. This reduces the scope of maintenance. In addition, costs are saved because only the filter that is used up has to be changed.

The present invention also relates to a filter insert for an air purification system for a vehicle interior with at least one pollen filter, the air purification system comprising at least one air inlet, the air purification system being set up to guide air from the air inlet via the pollen filter, to purify it and to clean the purified air into the Hand over the vehicle interior.

According to the invention, the filter insert compartment has at least one extension which is set up to accommodate at least one fine dust particle filter. The filter insert compartment is preferably in the area of the engine compartment of the vehicle educated. As a rule, the filter insert compartment is arranged in the area of the intake area of the ventilation system in the vehicle. The placement of the filter insert compartment in the area of the engine compartment offers the advantage that the filter insert compartment is easily accessible, so that it is easy to change the respective filter.

The filter insert compartment advantageously has at least two compartments, one compartment being set up as an extension and the pollen filter being arranged in another compartment. In the case of more than two compartments, it is conceivable that the pollen filter is arranged in one compartment and the remaining several compartments each serve as an extension for a respective further filter. An extension is to be understood, for example, as a receptacle or a holding element which is set up to receive or hold at least one fine dust particle filter and / or pollen filter and / or a further filter. The fine dust particle filter can, for example, be pushed into the receptacle and / or can be fastened to the holding element by means of a fastening means, for example a screw. It is also conceivable to additionally insert a further pollen filter into the filter insert compartment.

The present invention further relates to a particulate matter filter for an air purification system for a vehicle interior with at least one pollen filter, the air purification system comprising at least one air inlet, the air purification system being set up to guide air from the air inlet via the pollen filter, to clean it and to clean the cleaned air into the Hand over the vehicle interior.

According to the invention, the fine dust particle filter is set up to be inserted into an extension of a filter insertion compartment of the air cleaning system or to be insertable. An extension is usually a compartment of the filter insert compartment.

The fine dust particle filter generally has highlights which are set up to engage in recesses in the filter insert compartment. Alternatively, the fine dust particle filter can be set up so that it can be inserted into the filter insert compartment by means of the extension. In a further alternative embodiment, the extension of the filter insert compartment is designed in a basket-shaped manner, so that a fine dust particle filter can be inserted or inserted into the basket-shaped extension.

In a further development, the fine dust particle filter is set up to filter fine dust particles between 0.01 μm (micrometer) and 3 μm (micrometer) from the air. The design of a fine dust particle filter for a vehicle interior in such a way that it filters fine dust particles in an order of magnitude between 0.01 μm (micrometer) and 3 μm (micrometer) from an air passed through the filter offers the advantage, in particular also the small fine dust particles, from the air rauszufiltern. Optionally, the particulate matter filter can also be set up to also filter larger particulate matter filters from the air.

• 1 eine schematische Ansicht einer Anordnung einer Ausführungsform eines erfindungsgemäßen Luftreinigungssystem mit einem Pollenfilter und einem nachrüstbaren Feinstaubpartikelfilter,
• 2 eine Ausführungsform eines erfindungsgemäßen F einstaubpartikelfi lters.

Preferred exemplary embodiments of the invention are explained in more detail below on the basis of highly simplified schematic representations. It shows:

• 1 1 shows a schematic view of an arrangement of an embodiment of an air purification system according to the invention with a pollen filter and a retrofittable fine dust particle filter,
• 2 an embodiment of a F dust particulate filter according to the invention.

In the figures, the same structural elements have the same reference numbers.

In the 1 is an embodiment of an air cleaning system according to the invention 10 shown which is in a vehicle 14 is mounted. The air purification system 10 is in the area of an engine compartment 15 of the vehicle 14 set up. The air purification system 10 includes a filter insert 13 which over the open engine compartment 15 is accessible. The filter insert 13 is set up a pollen filter 11 take. The filter insert compartment also includes 13 at least one more - in 1 not shown - fine dust particle filter.

The - not shown - fine dust particle filter can also through the filter insert 13 into the air purification system 10 be used. In the present embodiment, the extension is 17 basket-shaped, so that the fine dust particle filter in the basket-shaped extension 17 is insertable. The filter insert 13 In other embodiments, it can also be designed as a recess or comprise a recess into which a fine dust particle filter which is in the extension 17 is arranged, can be introduced. The so in the air purification system 10 The used fine dust particle filter is set up, the air that the interior 12 of the vehicle to be cleaned, even from the smallest fine dust particles.

As a rule, the fine dust particle filter is also like the pollen filter 11 over the engine compartment 15 into the air purification system 10 used.

The fine dust particle filter can be used simultaneously or separately from the pollen filter 11 into the air purification system 10 be used. The separate insertion of the fine dust particle filter from the pollen filter 11 offers the advantage that, depending on the degree of consumption, only the used fine dust particle filter or the used pollen filter 11 can be exchanged.

In the 2 is an inventive fine dust particle filter 16 shown in a in 1 described air purification system according to the invention 10 can be used.

The fine dust particle filter 16 usually has a smaller size than the - in 1 shown - pollen filter 11 on. In addition, the fine dust particle filter 16 In a particularly preferred embodiment, it is set up to filter fine dust particles between 0.01 μm (micrometer) and 0.3 μm (micrometer).

In an alternative embodiment, the fine dust particle filter 16 filter other size ranges of fine dust particles. For example, the fine dust particle filter can be used in other configurations 16 Filter size ranges of fine dust particles between 0.3 - 0.8 µm (micrometers) or between 0.8 and 1 µm (micrometers). The fine dust particle filter 16 is set up in the air purification system 10 can be used, inserted or inserted.

The in 2 fine dust particle filter shown 16 is suitable in one - in 1 shown - air purification system 10 to be introduced subsequently. The fine dust particle filter according to the invention can thus 16 can also be retrofitted to vehicles to reduce particulate matter in the vehicle interior.

The fine dust particle filter 16 can already be in the air purification system 10 arranged pollen filter arranged downstream of the vehicle, ie the air purification system 10 Passing air first flows through the pollen filter and then through the fine dust particle filter 16 , The - in 1 shown - pollen filter 11 is thus through the fine dust particle filter 16 added. The air sucked into the air purification system from the outside is first fed through the pollen filter 11 managed and filtered. The air is then passed through the fine dust particle filter 16 managed and filtered. This double filtering is particularly efficient. After the air introduced from outside has been filtered, it is made available to the interior of the vehicle.

LIST OF REFERENCE NUMBERS

10

Air purification system

11

pollen filter

12

Vehicle interior

13

Filter insertion compartment

14

vehicle

15

engine compartment

16

fine dust particle filter

17

extension

QUOTES INCLUDE IN THE DESCRIPTION

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

• CN 107719073 A [0004]
• FR 2819451 A1 [0005]
• US 9687769 B2 [0006]

Claims (11)

Air purification system (10) for a vehicle interior (12) with at least one pollen filter (11), the air purification system (10) comprising at least one air inlet, the air purification system (10) being set up to guide air from the air inlet via the pollen filter (11) , to clean and deliver the cleaned air into the vehicle interior (12), characterized in that the air purification system comprises at least one filter insertion compartment, the pollen filter (11) being arranged in the filter insertion compartment (13) and the filter insertion compartment (13) for at least one extension Includes recording of at least one other filter. Air purification system (10) after Claim 1 , characterized in that the air purification system (10) further comprises the at least one further filter which is incorporated in the at least one extension. Air purification system (10) after Claim 1 or 2 , characterized in that the at least one further filter is a fine dust particle filter (16). Air purification system (10) after Claim 3 , characterized in that the fine dust particle filter (16) is set up to filter fine dust particles between 0.01 µm and 3 µm from the air. Air purification system (10) according to one of the preceding claims, characterized in that the at least one further filter can be subsequently introduced into the air purification system (10). Air purification system (10) according to one of the preceding claims, characterized in that the air purification system (10) is set up to remove fine dust particles with a size between 0.01 µm and 1 µm, in particular between 0.01 µm and 0.3 µm, which is led into the vehicle interior (12). Air purification system (10) according to one of the preceding claims, characterized in that the at least one further filter (16) can be replaced or inserted independently of the pollen filter (11). Filter insert compartment (13) for an air purification system (10) for a vehicle interior (12) with at least one pollen filter (11), the air purification system (10) comprising at least one air inlet, the air purification system (10) being set up to move air from the air inlet via the To guide, clean and discharge the pollen filter (11) into the vehicle interior (12), characterized in that the filter insert compartment (13) has at least one extension which is set up to accommodate at least one further filter. Filter insert compartment (13) after Claim 8 which comprises the at least one further filter, the further filter being a fine dust particle filter (16). Particulate matter filter (16) for an air cleaning system (10) for a vehicle interior (12) with at least one pollen filter (11), the air cleaning system (10) comprising at least one air inlet, wherein the air cleaning system (10) is set up to remove air from the air inlet via the To guide, clean and discharge the pollen filter (11) into the vehicle interior (12), characterized in that the fine dust particle filter (16) is set up to be subsequently inserted into an extension of a filter insertion compartment (13) of the air cleaning system (10) or to be collectable. Fine dust particle filter (16) Claim 10 , characterized in that the fine dust particle filter (16) is set up to filter fine dust particles between 0.01 µm and 3 µm from the air.

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