WO2018087377A2

WO2018087377A2 - Portable individual air purification system

Info

Publication number: WO2018087377A2
Application number: PCT/EP2017/079134
Authority: WO
Inventors: Alexander BRÄNDLE; Michael Schechterle; Steve BRAUNS; Michael Rehner; Henning Hayn; Tobias GELTZ; Dominik Scholl
Original assignee: Alfred Kärcher Gmbh & Co. Kg
Priority date: 2016-11-14
Filing date: 2017-11-14
Publication date: 2018-05-17
Also published as: WO2018087377A3; DE102016121821A1

Abstract

The invention relates to a portable individual air purification system comprising an air filter arrangement for a portable individual air purification device which has an air inlet for air to be purified and an air outlet for purified air. To improve this such that, in particular, the air filter arrangement in a portable individual air purification device can be replaced easily, the air filter arrangement is designed in the form of a filter cartridge.

Description

Portable individual air purification system

The present invention relates to a portable individual air cleaning system comprising an air filter device for a portable individual air cleaning device, which comprises an air inlet for air to be cleaned and a clean air outlet.

Due to increasing air pollution, in particular emissions from factories, heating systems and vehicles, respiratory and particulate matter masks are increasingly used in polluted metropolitan areas worldwide, with which people seek to protect themselves. Disposable and fine dust masks, which are passive air filter devices, are known.

However, active air cleaning systems are also used in which a fan sucks in the polluted air and conveys it through a filter element. The filtered air is then supplied to the user as breathing air. Such an air cleaning system is known for example from DE 10 2014 003 866 AI.

Starting from known individual air cleaning systems, it is desirable to provide in particular a system with a high rate of deposition and a readily replaceable air filter device.

It is therefore an object of the present invention to improve a portable individual air cleaning system of the type described above so that in particular a replacement of the air filter device in a portable individual air cleaning device is easy to handle. This object is achieved in a portable individual air cleaning system of the type described above according to the invention that the air filter device is designed in the form of a filter cartridge.

To provide a filter cartridge has the particular advantage that it allows easy handling of the air cleaning system, and in particular easily a change of the air filter device of the air cleaning device when the air filter device is dirty or saturated. In addition, an optional confusion when inserting the same can be optionally prevented by special design of the filter cartridge. The filter cassette may, in particular, comprise a plurality of different filter elements so as to form a multi-stage air filter device which can filter out different types of soiling and different pollutants in an optimized manner and / or bind in the filter element. In particular, the air filter device can be designed as a disposable air filter device.

The air filter device can be formed in a simple manner if the filter cassette comprises a filter carrier with at least one filter element arranged or formed on the filter carrier. In particular, the filter carrier of the filter cartridge can impart a stability required for handling. In particular, a plurality of filter elements may be provided which are formed by different types or types of filter elements and filter materials in order to remove different types of contaminants from the air to be cleaned.

In order to achieve an optimal separation between still to be cleaned air and already purified air in the air purification device, it is advantageous if the filter cartridge carries at least one sealing element for sealing the air filter device and a housing of the air cleaning device relative to each other. It is advantageous if the at least one filter element and the filter carrier are sealed relative to one another. In this way it can be prevented that air can flow from the air inlet to the air outlet without flowing through the at least one filter element.

The filter cassette can be formed in a simple manner if the at least one filter element and the filter carrier are positively and / or positively and / or materially connected to one another. In particular, the at least one filter element and the filter carrier can be glued together.

In order to increase the reliability of the air cleaning system, it is advantageous if the at least one filter element is permanently connected to the filter carrier. Thus, in addition, a filter cassette which can be handled as a part by a user can be formed in a simple manner.

Preferably, the filter support is dimensionally stable. In particular, the air filter device can be handled by a user in a simple and secure manner. In addition, it is thus also possible in particular to prevent the air filter device in the air cleaning device from being deformed in such a way that unfiltered air can flow from the air inlet to the air outlet.

It is advantageous if the filter carrier comprises at least one first filter carrier element and at least one second filter carrier element and if the at least one filter element is arranged or formed between the at least one first and at least one second filter carrier element. The filter support elements may in particular be formed separately from each other. The at least one filter element can itself have a certain dimensional stability in order to connect the filter support elements in particular dimensionally stable or substantially dimensionally stable with one another.

It is favorable if the at least one first filter carrier element and the at least one second filter carrier element are formed separately from one another and indirectly connected to one another. For example, the filter gerelemente be connected to each other via the at least one filter element. In particular, such an embodiment makes it possible to realize the largest possible area through which the filter cartridge can flow.

The filter cassette can be formed in a simple manner when the at least one first filter carrier element has a circular disk shape or essentially a circular disk shape and has a first annular filter element receptacle which is open parallel to a longitudinal axis defined by the filter cassette for receiving the at least one filter element. The filter element receptacle is thus designed in particular annular groove-shaped and can partially accommodate the at least one filter element. Alternatively, the at least one first filter support element also polygonal, in particular rectangular, be formed. Alternatively, the at least one first filter carrier element could also be in the form of a disk with an arbitrary outer contour instead of in the form of a ring.

It is advantageous if the at least one second filter element has a circular disk-shaped or substantially circular disk-shaped configuration and has a second annular filter element receptacle which opens parallel to a longitudinal axis defined by the filter cartridge until it receives the at least one filter element. The at least one second filter carrier element can thus in particular also have an annular-groove-shaped filter element receptacle into which the at least one filter element at least partially engages. Alternatively, the at least one second

Filter support element also polygonal, in particular rectangular, be formed. Alternatively, the at least one first filter carrier element instead of in the form of a ring could also be in the form of a disk with any desired outer contour

be educated.

The filter cassette can be made particularly compact if the first filter element receptacle and the second filter element receptacle are open toward one another. Conveniently, the at least one sealing element is arranged or formed on the at least one first filter carrier element and / or on the at least one second filter carrier element. By this arrangement or training a filter property of the filter cartridge is not affected in particular.

It is advantageous if the at least one sealing element on the at least one first filter carrier element and / or on at least one second filter carrier element in the radial direction on a longitudinal axis of the filter cartridge protruding or formed. Thus, the filter cartridge, in particular, when it is in the form of an annular filter cartridge, which allows air flow through the at least one filter element in the radial direction with respect to the longitudinal axis, can be sealed relative to other parts or elements of the air cleaning device in a simple manner.

It is expedient if the at least one sealing element is arranged on the at least one first filter carrier element and / or on the at least one second filter carrier element parallel to a longitudinal axis of the filter cassette from the at least one first filter carrier element and / or from the at least one second filter carrier element pointing away and / or above or is formed. In this way, in particular, a seal between the filter cartridge and, for example, a housing of the air cleaning device can be achieved in order to avoid a flow of contaminated air around the filter cartridge around.

In order not to reduce a free cross-section of the filter cartridge for flowing through contaminated air, it is favorable if the at least one sealing element on at least one first filter support element and / or on at least one second filter support member on a projecting away from the other filter support member filter support element outer surface arranged or formed is. It is also advantageous, in particular also in a portable individual air cleaning system of the type described above, if at least one first positioning element is arranged or formed on the air filter device. A design of the air filter device in the form of a filter cartridge is therefore not mandatory here. Preferably, the at least one positioning element may be arranged or formed on the at least one first filter carrier element and / or on the at least one second filter carrier element on a filter carrier element outer surface facing away from the respective other filter carrier element. The at least one positioning element may be part of a positioning device in order to enable a defined and unambiguous positioning of the air filter device on or in the air cleaning device. The positioning device can in particular also be embodied electronically, for example by an RFID chip that uniquely characterizes the filter device, on which data such as filter type,

Date of manufacture, exhaustion date and the like are stored. At the air purification device, for example, a corresponding

Reading device may be arranged or formed, which with a control and / or regulating device of the air purification device

is formed cooperatively. An interaction can in particular be realized in such a way that the air purification device can only be activated if an air filter device approved by the manufacturer with a permissible code deposited on the RFID chip or another memory element is inserted into a housing of the air purification device. A query of the RFID chip can in particular be made without contact via a radio interface.

In a simple manner, such a positioning device can be formed if the at least one first positioning element is designed in the form of a positioning projection or a positioning recess.

A positioning of the air filter device in or on the air cleaning device can in particular be effected in a simple manner by itself the at least one first positioning element extends in the radial direction with respect to the longitudinal axis of the air filter device.

In a simple manner, the at least one first positioning element can be formed when the positioning recess is designed in the form of a positioning groove.

It is favorable when at least one sealing element is arranged or formed on the first filter carrier element and on the second filter carrier element. Thus, the air filter device can in particular be sealed on both sides optimally relative to a housing of the air cleaning device or other components or elements thereof in a simple manner.

Furthermore, it may be advantageous if the at least one sealing element extends transversely to the at least one first positioning element. In particular, the at least one sealing element may adjoin or be connected to the at least one first positioning element. The at least one sealing element may in particular be non-positively and / or positively and / or materially connected to the filter carrier. For example, the at least one sealing element can also be formed on the filter carrier and integrally formed, in particular monolithic, with this. The at least one sealing element can fill the at least one first positioning element wholly or partly transversely to its extension direction.

It is advantageous if the at least one sealing element is designed in the form of a self-contained sealing ring. Such a sealing ring can be produced in a simple manner and arrange, for example, on the filter carrier.

A particularly good seal can be achieved, in particular, if the at least one sealing element is formed from an elastically deformable plastic. The filter cassette can be designed simply and inexpensively if the filter carrier is made of a plastic, of cardboard and / or of a metal sheet.

It is advantageous if at least one second positioning element is arranged or formed on at least one sealing element on a sealing element surface facing away from the filter carrier element on which it is arranged. Thus, with the at least one sealing element, in particular in the region of the at least one first positioning element, an optimal sealing can also be achieved.

Preferably, the at least one second positioning element is designed in the form of a positioning projection or a positioning recess. In particular, it is preferably designed as a positioning projection, although the at least one first positioning element is designed in the form of a positioning projection. Furthermore, the at least one first and the at least one second positioning element are preferably designed as positioning recesses.

In order to obtain a particularly good seal, it is advantageous if the at least one first positioning element and the at least one second positioning element are arranged or formed corresponding to one another with respect to the longitudinal axis. In particular, they may extend over the same or substantially the same circumferential angular range with respect to the longitudinal axis. This makes it possible, in particular, for an overlapping arrangement of the first and second positioning elements, which is advantageous, in particular, in cooperation with a further positioning element corresponding to the latter.

To improve a sealing of the filter cartridge in the air cleaning device, it is advantageous if the at least one second positioning element is narrower than the at least one first positioning element. According to a further preferred embodiment of the invention, it can be provided that the at least one filter element is designed in the form of a pleated filter with a plurality of mutually inclined filter element wall sections and that the filter element wall sections extend parallel or substantially parallel to a longitudinal axis of the filter cassette. In this way, in particular folding edges of the pleated filter can be formed, which extend parallel to the longitudinal axis. The pleated filter makes it possible in a simple manner to increase a filter area and thus to improve a cleaning effect of the air filter device. Alternatively, the at least one filter element also in the form of a solid filter body of a

be formed corresponding filter material or comprise such a filter body.

The air filter device can be formed in a simple and cost-effective manner if the at least one filter element is made of paper, plastic and / or glass fiber.

Advantageously, it is formed with at least one filter element in the form of a mechanical and / or chemical filter element. In particular, particulate matter can be filtered out of the polluted air with a mechanical filter element, harmful chemical substances such as nitrogen oxides or the like with a chemical filter element.

It is favorable if the at least one filter element in the form of a

Coarse dust filter and / or in the form of a fine dust filter or in the form of a Schwebstofffilters is formed. With such filter elements, dirt particles of different sizes can be safely filtered out of the polluted ambient air.

In particular, the air filter device can be designed cost-effectively if the at least one filter element is designed in the form of a HEPA filter. For example, HEPA filters can also be made washable. It is advantageous if the at least one filter element is designed according to the filter class E10, El l, E12, E13 or H13. So can

in particular separation levels of close to 100% can be achieved.

Furthermore, it may be favorable if the at least one filter element is designed according to the filter class M5 to M9. For example, it may therefore be an outside air filter with an average efficiency of about 40% to 60% measured on particles with a mean size of 0.4 pm.

According to another preferred embodiment of the invention may be provided, in particular in a portable individual air cleaning system of the type described above, that it comprises a portable individual air cleaning device comprising an air inlet for air to be cleaned and an air outlet for purified air. This air cleaning device can be designed in particular for receiving the air filter device, which, as described above, can be designed in particular in the form of a filter cassette.

It is favorable if the air cleaning device comprises a housing, if the air filter device is arranged or formed in the housing, and if an air conveyor fluidically connected to the air filter device is arranged or formed in the housing for producing an unfiltered air flow from the air inlet to the air filter device and a filtered air flow from the air filter device away to the air outlet. In particular, by the air conveyor, an active air cleaning system can be formed, with which a desired depending on the construction of the air purification device desired volume flow of purified air and can be directed to the air outlet.

In a simple way, an air flow can be generated when the air conveyor device comprises a motor-driven fan. The air conveyor device can be designed in a particularly cost-effective manner if the fan comprises an electric motor.

Forming in a particularly compact manner, the air cleaning device, when the air filter device, in particular the filter cartridge, the electric motor surrounding is arranged in the housing.

Conveniently, the electric motor is held in a motor mount. This may in particular be integrally formed with the housing or a part thereof.

Preferably, the electric motor is held vibration-damped in the motor mount. For example, vibration damping elements can be provided for this purpose which absorb or at least partially damp a vibration of the motor, so that it is not transmitted to the housing. In particular, a noise development by the air conveying device and the air cleaning system can be minimized overall.

It is advantageous if the housing has a housing cover facing the air filter device. The housing cover can in particular form a closure element for a housing opening of the housing. In particular, the housing cover can limit the air inlet in sections. The housing cover may in particular be facing the at least one first filter carrier element. In particular, easy access to the interior of the housing can be provided with the housing cover, for example to an air filter device receptacle for receiving the air filter device.

Preferably, the housing cover is deformable and / or removable. In particular, the housing cover can thus serve as an actuating member, for example in order to actuate an activation element, arranged behind the housing cover, of an activation device of the air conveying device. because of or to press. Removable forming the housing cover in particular has the advantage that, for example, arranged behind the housing cover air filter device can be easily replaced.

It is favorable if the housing has an air filter receptacle for receiving the air filter device and if the housing cover closes the air filter receptacle. In particular, the air filter receptacle can be designed in the form of a filter cassette receptacle for receiving the air filter device designed in the form of a filter cassette. The air filter device can thus be exchanged in a simple manner, for example when it is dirty or worn, by removing the housing cover from the housing and removing the air filter device from the air filter device receptacle and exchanging it for a new or reconditioned air filter device.

To securely close the air filter device receptacle, it is advantageous if the housing cover is non-positively and / or positively connected to the housing in a connecting position. For example, here locking connection means or bayonet connection means with mutually corresponding, in the connecting position engaged, on the one hand on the housing and on the other hand on the housing cover arranged or formed connecting elements may be provided to connect the housing and the housing cover easily and safely together.

According to another preferred embodiment of the invention may be provided, in particular in a portable individual air cleaning system of the type described above, that the air cleaning system comprises a garment of a user's mouth and nose, which garment is adapted to hold the portable individual air cleaning device and which garment a the User facing garment inside, a user facing garment outside and a device receptacle for receiving the Air cleaning device has. By means of such a garment, in particular the mouth and nose of a user can be shielded from contaminated ambient air. In particular, the item of clothing may be in the form of a mask or a tube scarf and thus be worn by the user surrounding his neck and head. For easy carrying the air cleaning device, this can be used in the device holder.

It is advantageous if the air cleaning device is arranged and configured such that the air inlet is arranged or formed on the outer side of the garment and the air outlet is arranged or formed on the garment inside and the air inlet is separated from the air outlet by a garment wall of the garment. The spatial separation of the air inlet from the air outlet through a garment wall of the garment can be achieved in particular that only purified by the air cleaning device air can reach into a limited of the garment inside the garment and so to the mouth and nose of the user.

In a simple manner, the garment may receive the air cleaning device when the device receptacle comprises a device opening formed in a garment wall. This can basically have any shape. In particular, it may be square, for example, square. In particular, a part of the air cleaning device can pass through the device opening and so at least partially protrude or protrude outwardly from the garment.

Conveniently, the device opening is limited by a peripheral opening edge. In particular, the opening edge may be elastic. Thus, the garment with the air cleaning device can be easily engaged or coupled. It is advantageous if the air cleaning device comprises an edge holding device for non-positive and / or positive retention of the opening edge. For example, the edge holding device may comprise a groove, in which the elastically formed opening edge engages and is held, for example, by an elastic element, in particular a rubber band.

It is advantageous if the edge holding device has a peripheral opening edge receptacle for at least partially receiving the opening edge. In particular, an optimal sealing of the device opening can be achieved by receiving the circumferential opening edge in the edge holding device.

The edge holding device can be formed in a simple manner if the opening edge receptacle is designed in the form of a circumferential receiving groove.

It is favorable if the edge holding device has at least two clamping surfaces facing each other, between which the opening edge is arranged or held. This refinement makes it possible in particular to fix the opening edge purely mechanically, without any further aids, in particular adhesives, to the air-cleaning device. In particular, the clamping surfaces may be designed to be movable relative to one another in order to change the item of clothing, if necessary, in particular in order to clean it or to replace it in the event of damage.

The edge retaining device can be formed in a simple manner if a first clamping surface of the at least two clamping surfaces is arranged or formed on a first housing part of the air cleaning device, if a second clamping surface of the at least two clamping surfaces is arranged or formed on a second housing part of the air cleaning device and if the first Housing part and the second housing part are non-positively and / or positively connected. For example, the housing parts may be bolted together or locked to the opening edge of the Garment between the two clamping surfaces force and / or positively hold, in particular clamp.

It is advantageous if the air inlet defines an air inlet plane which runs parallel to a housing front side of the housing. In particular, the air inlet level may extend outside of the garment. This makes it possible, in particular, to allow air to flow in all directions into the housing without the air inlet of the air cleaning device having to be visible from the front. The air intake can be designed so inconspicuous.

It is advantageous if the housing cover forms part of the front of the housing. It may in particular be arranged outside the item of clothing. In particular, the air filter device can be changed without having to separate the item of clothing from the air cleaning device. The air filter device can be removed after removal of the housing cover from the outside and exchanged in the desired manner.

The air purification device can be made particularly simple and compact when the housing cover and the first housing part form the air inlet between them. Furthermore, the housing cover can also serve to hold the air filter device in a defined manner in the air filter device receptacle.

Furthermore, it is advantageous if the air outlet defines an air outlet direction which runs parallel or substantially parallel to the air inlet plane. Thus, in particular, a particularly compact air cleaning device can be formed, without elaborate air guiding devices.

Preferably, a free air inlet cross-sectional area defined by the air inlet is greater than a free air outlet cross-sectional area defined by the air outlet. This makes it possible in particular to achieve low flow velocities of the contaminated air as it flows through the air inlet and thus only low flow losses. In particular, as well as a noise generation can be kept low.

According to a further preferred embodiment of the invention it can be provided that at least one third positioning element is arranged or formed on the air filter device receptacle, which is connected to the first positioning element and / or the second positioning element in a positioning position in which the air filter device is inserted into the air filter device receptacle Intervention is. In particular, the third positioning element can be arranged or formed on the first and / or second housing part, for example in the form of a positioning projection corresponding to the first and / or second positioning element or a positioning recess, which brings about a form-locking engagement with the first and / or second positioning element allow in the positioning position. In this way, a correct orientation of the air filter device in the air filter device receptacle can be ensured. In addition, it can also be achieved, in particular, that only air-filtering devices approved for the air-cleaning device can be used in order to prevent damage to the air-cleaning system and negative effects for the user.

To operate the air cleaning system, it is particularly advantageous if it comprises a power supply device for operating the air conveyor. In particular, this may be designed in the form of a network-independent power supply device.

Preferably, the power supply device is designed in the form of a battery. In particular, this may be in the form of a rechargeable battery. In this way, the air purification system can be operated independently of the mains. The air purification system can be designed in a particularly simple and compact manner if the energy supply device is arranged in or on the housing. For example, a battery compartment may be provided in the housing.

Furthermore, it may be advantageous if the air cleaning system comprises an activation device for activating and deactivating the air conveying device.

The activation device can be embodied in a particularly simple manner if it comprises at least one activation element for activating and deactivating the air conveying device. In particular, the at least one activation element can be designed in the form of an electrical switching element, for example in the form of an electrical pushbutton or switch.

It is advantageous if the activation device comprises an actuator, which cooperates with the at least one activation element for actuating the same. In particular, an operation can be achieved by deforming or moving the actuator towards the filter cartridge. The actuator may be formed in particular in the form of the housing cover, which is preferably formed deformable.

The following description of preferred embodiments of the invention is used in conjunction with the drawings for further explanation. Show it :

Figure 1 is an overall schematic view of a portable individual air cleaning system in use by a user;

Figure 2 is a view in the direction of arrow A in Figure 1;

Figure 3: a partially broken perspective view of part of the

Air purification system of Figure 1; FIG. 4 shows an enlarged view of the detail B in FIG. 2;

Figure 5 is a perspective, partially broken view of the air cleaning device on a front side of the housing;

Figure 6 is a perspective, partially broken view of the air cleaning device on a rear side of the housing;

FIG. 7 shows an exploded view of the air purification device in a perspective view similar to FIG. 5;

FIG. 8 is an exploded view of the air purification device in a perspective view similar to FIG. 6;

Figure 9 is a partially cutaway perspective view of the air cleaning device;

Figure 10 is a sectional view taken along line 10-10 in Figure 5;

Figure 11 is a schematic representation of components of the portable individual air cleaning system;

Figure 12 is a schematic representation of a switching sequence for operating the air cleaning system;

Figure 13: a schematic representation of an alternative switching sequence for

Operating the air purification system;

Figure 14 is a schematic representation of another alternative switching sequence for operating the air cleaning system; Figure 15 is a schematic representation of another alternative switching sequence for operating the air cleaning system;

Figure 16 is a tabular representation of a state of charge information displayed by a display device of the air cleaning system;

FIG. 17 is a tabular representation of one of a display device of FIG

Air cleaning system displayed filter change information; and

FIG. 18 shows an exemplary illustration of two graphical user interfaces of a software program running on a smartphone in the form of an app in cooperation with the air purification device.

FIG. 1 shows by way of example an exemplary embodiment of a portable individual air cleaning system 10. It comprises in particular a portable individual air cleaning device 12, a garment 14 and, as optional as the garment 14, a data processing device, which is exemplified as a smartphone 16. Alternatively, a computer, a laptop or a tablet can also be used here. This list is not exhaustive.

The air cleaning device 12 comprises a housing 18, which is designed in several parts. It comprises a housing rear wall, a first housing part 22, a second housing part 24 and a housing cover 26, which forms part of a housing front side 27.

In the housing 18, an air filter device 28 is arranged, in a trained air filter cleaning receptacle 30. Further, in the housing 18, an air conveyor 32 is arranged.

Furthermore, the air cleaning device 12 comprises a power supply device 34 and a control and / or regulating device 36, wel che are arranged in a limited by the housing rear wall 20 and the second housing part 24 receiving space 38.

On the housing 18, an air inlet 40 is further formed, can flow into the housing 18 through the contaminated ambient air.

Further, an air outlet 42 is formed on the housing 18 through which purified air can flow.

The air inlet 40 is in fluid communication with the air outlet 42 in connection.

The air conveyor 32 is configured to produce an unfiltered airflow from the air inlet 40 to and through the air filter device 28 and a filtered airflow from the air filter device 28 to the air outlet 42.

The air inlet 40 comprises a narrow annular gap, which is formed between a radial flange 48 projecting on the first housing part 22 and the housing cover 26 in the radial direction relative to a longitudinal axis 46 defined by the air filter device 28.

In order to keep the housing cover 28 at a defined distance from the flange 48, the flange 48 is provided with vertically projecting ribs 50 which separate a plurality of air inlet openings 52 from one another. The ribs 50 could alternatively be arranged or formed on the housing cover.

The first housing part 22 is designed in the form of a substantially rectangular frame with a circumferential housing part wall 54. The flange 48 is formed at a first end 56 of the first housing part 22.

At a second end 58 of the first housing part 22 in the region of rounded corners of the housing part wall 54 are substantially triangular, internally ing stiffening elements 60 are formed, each having a fastener opening 62 in the form of a bore. The longitudinal axes of the fastener openings 62 are aligned parallel to the longitudinal axis 46.

On the housing part wall 54 bayonet slots 64 are formed on two opposite, substantially parallel wall portions with an insertion portion 66 into which a corresponding projection 68 which is formed from a bottom 70 of the housing cover 26 projecting in a direction parallel to the longitudinal axis 46th is insertable. The insertion section 76 is followed by a slot-shaped locking portion 72 of the bayonet slot 64 into which a nose 74 of the projection 68 pointing away from the longitudinal axis 46 in a direction transverse to the longitudinal axis 46 is inserted, and that until the nose 74 at the end of the locking portion 72 abuts. The housing cover 26 then completely covers the flange 48.

From the bottom 70 are further from Aufgleitrippen 76, which facilitate the placement of the housing cover 26 on the first housing part 22 and the insertion of the projections 68 with the lugs 74 in the bayonet slots 64.

The first housing part 22 can be inserted parallel to the longitudinal axis 46 into the air filter receptacle 30 formed on the second housing part 24 and forms a lateral boundary of the air filter receptacle 30 with the housing part wall 54.

Of the rear wall 20 of the housing 46 four threaded bushes 78 are formed protruding parallel to the longitudinal axis, in the threaded portions of fasteners 80 forming screws can be screwed.

For fixing the housing parts 22 and 24 to the housing rear wall 20, first the second housing part 22 is placed parallel to the longitudinal axis 46 on the housing rear wall 20. The first housing part 22 is then inserted into the air film Tereinrichtungsaufnahme 30 parallel to the longitudinal axis 46 introduced. In each case a screw is passed through the fastener openings 62 with its threaded portion and screwed into the correspondingly arranged and aligned threaded bushes 78 until a head 82 of the screw strikes the stiffening element 60 and holds this in position.

The arranged in the receiving space 38 power supply device 34 is used to supply the air conveyor 32 and the control and / or regulating device 36 with energy. It is designed in the form of a network-independent power supply device 34, in the form of a battery 84, in particular in the form of a rechargeable battery.

The battery 84 is electrically operatively connected to the control and / or regulating device 36. This is in turn connected to an accessible on an outer side 86 of the housing 18 interface device 318 in the form of a charging port 88 in electrical operative connection.

To protect against contamination, the charging port 88, which may be formed, for example, in the form of a USB or micro USB port, is closed or closable with a charging connection flap 90.

The receiving space 38 is separated from both the Luftfiltereinrichtungsaufnahme 30 and from a later described in more detail Lüfterradaufnahme 92 and is traversed by neither contaminated nor purified air.

The air conveyor 32 includes a fan 94 which includes an electric motor 96. The electric motor 96 is electrically connected via control lines 98 to the control and / or regulating device 36. The electric motor 96 is arranged coaxially with the longitudinal axis 46 in the housing 18. It defines a motor longitudinal axis 97, which coincides with the longitudinal axis 46. A motor or drive shaft 100 protrudes coaxially to the longitudinal axis 46 of a motor housing 102 and carries a fan 104. This defines a fan longitudinal axis 105, which coincides with the motor longitudinal axis 97.

The substantially cylindrical motor housing 102 is received in a motor housing 106. At this damping elements 108 are arranged or formed to dampen vibrations of the electric motor 96 and, if possible not on the motor housing 106 and from there to the housing 18.

An end of the motor housing 106 pointing to the housing cover 26 is formed by a circuit board 110, which carries an activating element 112 of an activating device 114 for activating and deactivating the air conveying device.

The activation element 112 is in the form of an electrical switching element 117, for example as a push button 116, which is oriented in the direction of the housing cover 26 under a flexible cap 118, protected and sealed therefrom.

Also under the preferably translucent cap 118 is a display device 120 for displaying a state of charge of the power supply device 34 or a state of the air filter device 28 in the form of a luminous element 122, for example in the form of a color-changing LED 124, respectively. The light-emitting element 122 is electrically connected via the control lines 98 to the control and / or regulating device 36.

The housing cover 26 is deformable, so that an actuating region 126 drawn centrally thereon in the figures in the figures can be moved or deformed in the direction of the activating element 112 is to press this. The housing cover 26 thus forms an actuator 127.

In a home position, a rear side 128 of the housing cover 26 is slightly spaced from the cap 118, and may optionally already be in contact therewith. If an actuating force is exerted on the actuating region 126 parallel to the longitudinal axis 46, the housing cover 26 deforms. This then returns to its basic position shown in the figures when no force is exerted on it.

The motor housing 106 is received in a motor housing 130 integrally formed on the second housing part 24. The motor mount 130 comprises a housing cover 26 facing the retaining ring 132 which is connected via a plurality of, motor support openings 131 from each other separating webs 134 with an edge 136 of a formed in the second housing part 24 passage opening 138. The passage opening 138 connects the Luftfiltereinrichtungsaufnahme 30 and the Lüfterradaufnahme 92 together.

The board 110 is disposed within the retaining ring 132 and this filling.

The webs 134 are slightly inclined with respect to the longitudinal axis 46, so that a cage which widens slightly conically away from the housing cover 26 is designed to receive the motor housing 106.

The webs 134 have a flow-favorable teardrop shape in cross-section, which in each case defines a tapering edge 140 directed in the direction of the longitudinal axis 46 and a semi-cylindrical side surface 142 of the webs facing away from the longitudinal axis 46.

The motor housing 106 comprises, in the region of its end facing the drive shaft 100, a housing ring 144 which is formed concentrically with the longitudinal axis 46 and whose diameter is at an outer diameter of the housing Passage opening 138 is adapted. An end edge 146 of the housing ring 144 pointing in the direction of the fan wheel receiver 92 bears against an end edge 148 of the second housing part 22 which points in the direction of the housing cover 26. The passage opening 138 is bounded by the end edge 148.

The housing ring 144 is held spaced apart by a substantially triangular air guide elements 150, which project in the radial direction relative to the longitudinal axis 46, from a casing enclosed by the motor housing 106. The air guide elements 150 divide an engine entry passage 152 formed between the shell of the engine housing 106 and the containment ring 144 into a plurality of openings 154.

The fan wheel 104 has a substantially annular fan wheel inlet 156, which is formed by a flange 158 bent in the direction of the housing cover 26. An end edge 160 of the flange 158 projects slightly into the engine housing passage opening 152.

The fan 104 is completely rotatably mounted in the Lüfterradaufnahme 92 about the longitudinal axis 46. The impeller inlet 156 is as described axially, ie parallel to the longitudinal axis 46, opened.

The fan wheel 104 has a disk-shaped fan wheel body 162, which is penetrated by a plurality of fan wheel channels 164. The Lüfterradkanäle 164 have inner deflection surfaces 166 which define at one end an inner limiting diameter of the Lüfterradeinlasses 156, which corresponds to an outer diameter of the motor housing 106.

Starting from the end 168, the deflection surfaces 166 are rounded and, as can be seen in the sectional view in FIG. 10, form approximately a 90 ° bend toward a fan wheel outlet 170 which points away from the longitudinal axis 46. The Lüfterradauslass 170 is the housing rear wall 20 back from an end wall 172 bounded parallel or substantially parallel to the housing rear wall 20 and slightly spaced therefrom.

The Lüfterradkanäle 164 do not extend radially with respect to the longitudinal axis 46, but, as shown particularly well in Figure 9, arcuately with respect to the longitudinal axis 46. They are bounded by correspondingly curved Kanalseiten- wall sections 174.

The fan wheel receptacle 92 is delimited by a substantially cylindrical sleeve-shaped boundary wall 176 surrounding the longitudinal axis 46, which widens in the direction of the air outlet 42 into an outlet space 178 arranged upstream of the air outlet 42.

The air outlet 42 comprises a plurality of slot-shaped air outlet openings 180 in an end face 182 of the housing 18 pointing away from the longitudinal axis 46 and the receiving space 38.

The air outlet 42 defines a symbolized by the arrows 184 outflow direction which is transverse to the longitudinal axis 46.

The outflow direction also extends parallel to an air inlet level 186, which is defined by the air inlet 140 and extends substantially parallel to the housing cover 26. Contaminated air may flow in through the air inlet openings 52 in directions indicated by arrows 188 through the air inlet openings 52 into the air filter housing 30 from all sides. The arrows 188 extend parallel to the air inlet level 186 and in each case substantially parallel to the housing cover 26. Alternatively, air inlet openings 52 could also be formed on only one, two or three sides of the housing 18.

About a quarter of the air inlet openings 52 is arranged or formed on the end face 182. In the area of this end face 182 can contaminated air thus flow parallel and in the opposite direction to the purified air.

The boundary wall 176 forms a guide surface 190, which is interrupted by a guide surface opening 192. In the area of the guide surface opening 192, air guide elements 194 directed in the direction of the air outlet 42 are designed to divert an air flow emerging from the fan wheel 104 in the region of the outlet space 178 in the direction of the air outlet 42.

An inner side of the housing rear wall 20 is also curved in the direction of the air outlet 42 and forms a guide surface 196 for guiding an air flow 198 exiting the Lüfterradauslass 170, through the outlet space 178 in the direction of the air outlet 42 out.

In the outlet space 178 may optionally not shown in the figures

Sound absorption recordings arranged or adapted to receive sound absorption elements, also not shown.

The outlet space 178 extends almost over the entire height of the second housing part 24.

The air filter device 28 is designed in the form of a filter cartridge 200.

The filter cartridge 200 comprises a filter carrier 202 and at least one filter element 204 arranged or formed on the filter carrier 202.

The filter support 202 is dimensionally stable and comprises a first filter support element 206 and a second filter support element 208. The filter support elements 206 and 208 are formed separately from each other, in each case circular disk-shaped, and define a first filter element receptacle 210 and a second filter element receptacle 212 parallel to the longitudinal axis 46 on each other to be opened. Alternatively, the filter carrier elements 206 and 208 also polygonal, in particular rectangular, be formed. Alternatively, filter carrier elements 206 and 208 may be formed instead of in the form of a ring in the form of a disc with any outer contour.

The filter element receptacles 210 and 212 are formed in the form of flat annular grooves, in which engages the at least one, formed in the form of a pleated filter 214 filter element 204.

The pleated filter 214 defines a plurality of mutually inclined filter element wall sections 216, which run parallel or substantially parallel to the longitudinal axis 46. Thus, parallel to the longitudinal axis 46 extending folding edges are formed, which point alternately in the direction of the longitudinal axis 46 and out of this.

The at least one filter element 204 and the filter carrier 202 are sealed relative to one another. The at least one filter element 204 and the filter carrier 202 are in particular non-positively and / or positively and / or materially connected to each other, in particular glued. Preferably, the at least one filter element 104 is permanently connected to the filter carrier 202.

The at least one filter element 204 is formed, for example, from paper or an air-permeable plastic or from a glass fiber. It may form a mechanical and / or chemical filter element and be designed in particular in the form of a coarse dust filter and / or in the form of a fine dust filter and / or in the form of a suspended matter filter.

Optionally, the at least one filter element 204 may be in the form of a HEPA filter.

The at least one filter element 204 may be designed in particular in the form of a filter element 104 corresponding to the filter class E10, E1, E12, E13 or H13. Alternatively, the at least one filter element 204 may be formed according to the filter class M5 to M9 or coarser.

The air filter device 28 further carries a first sealing element 218 in the form of a self-contained sealing ring 219, which on the first filter support member 206 in the radial direction on the longitudinal axis 46 and parallel to the longitudinal axis 46 slightly over a direction toward the housing cover 26 toward, a first filter support element outer surface 207 defining end surface 220 protrudes. The first sealing element 218 abuts the retaining ring 232 and seals the filter cartridge 200 relative to the second housing part 24.

The air filter device 28 also carries a second sealing element 222 in the form of a self-contained sealing ring 223. The second sealing element 222 is disposed on an end face 224 of the second filter support element 208 facing towards the rear wall 20 and defining a second filter element outer surface 209 a the Lüfterradaufnahme 92 and the Luftfiltereinrichtungsaufnahme 30 from each other separating wall portion 226 of the second housing part 24 adjacent sealing lips 228.

The air cleaning device 12 further comprises a positioning device 230 with a first positioning element in the form of a positioning recess 234, which is designed in the form of a positioning groove 236. This extends away from the longitudinal axis 46 in the direction of the receiving space 38 and is open in the direction of the rear wall 20 back.

The positioning device 230 may in particular also be embodied electronically, for example by an RFID chip which uniquely characterizes the filter device 28, on which data such as filter type, date of manufacture, exhaustion date and the like are stored. At the air cleaning device 12, for example, a corresponding reading device may be arranged or formed, which is designed to cooperate with the control and / or regulating device 36. Interaction can be particularly These can be realized such that the air conveyor 32 can only be activated if a released from the manufacturer air filter device 28 is inserted with permissible, deposited on the RFID chip or other storage element code in the air filter device receptacle 30. A query of the RFID chip can in particular be made without contact via a radio interface.

On the second sealing element 222, a second positioning element 238 in the form of a positioning recess 239 is formed on a sealing element surface 225 pointing in the direction of the rear wall 20 of the housing. The positioning element 238 is formed in the region of the first positioning element 232, but somewhat narrower in the circumferential direction relative to the longitudinal axis 46. The second sealing member 222 extends in a direction transverse to the first and second positioning members 232 and 238.

The positioning elements 232 and 238 serve to receive the control lines 98 which form a third positioning element 240 in the form of a positioning projection 241 and which are guided from the motor housing 106 to the receiving space 38 on the wall section 226.

The air filter device 28 can only be pushed sufficiently far into the air filter device receptacle 30 if the third positioning element 240 and the positioning elements 232 and 238 are aligned relative to one another so that the third positioning element 240 can engage in the first positioning element 232. Thus, proper insertion of the filter cartridge 200 into the air cleaner receptacle 30 is ensured. In addition, only suitable filter cassettes 200, which have a correspondingly shaped third positioning element 240, can be used in conjunction with the air cleaning device 12.

Due to the special design of the filter cartridge 200 and the corresponding configuration of the housing 18 with the flow-mechanical elements arranged therein, an air flow results parallel to Housing cover 26 through the air inlet 40 in an air filter device 28 surrounding annular space 242, which is bounded by the at least one filter element 204 and the housing part wall 54.

The inflowing air can only flow through this annular space 242 and through the filter element 204 in the direction of the motor housing 106, thus in turn flows through the air filter device 28 substantially parallel to the housing cover 26, in the radial direction on the longitudinal axis 46.

The filtered through the at least one filter element 204 air is passed between the webs 134 on the casing of the motor housing 106, which is fluidly substantially smooth and deflects the air flow substantially by 90 ° in the direction of the impeller inlet 156 out.

The rotating fan 104 accelerates the cleaned air so that it can flow through the Lüfterradauslass 170 into the outlet 178 and from there through the air outlet 42, in the direction of the arrows 184th

The air cleaning device 12 is held on the garment 14. This has a device receptacle 244, which comprises a substantially square device opening 246 and a pocket 248 adapted to an outer contour of the air cleaning device 12.

The device opening 246 is bounded by a peripheral opening edge 250. This can be designed in particular elastic, for example by incorporating an elastic band.

To fix the item of clothing 14 on the air cleaning device 12, an edge holding device 252 serves to hold the opening edge 250 positively and / or positively. The edge holding device 252 comprises a peripheral opening edge receptacle 254 for receiving the opening edge 250. The opening edge receptacle 254 is in the form of a receiving groove 256.

The edge holding device 252 comprises two clamping surfaces 258 and 260 facing each other. The clamping surface 258 is formed by a side surface of the flange 48 facing away from the housing cover 26. The clamping surface 260 is formed by an edge surface of the second housing part 24 pointing in the direction of the clamping surface 258 ,

A distance between the clamping surfaces 258 and 260 is significantly smaller than a thickness, in particular in the region of the opening edge 250, a garment wall 262 of the garment 14 ,.

To connect the garment 14, the opening edge is inserted between the clamping surfaces 258 and 260 before the first housing part 22 is inserted into the air filter device receptacle 30 of the second housing part 24. In the manner described, the garment 14 is clamped to the air cleaning device 12.

The pocket 248 has an insertion opening 264 which, when the air cleaning system 10 is used as intended, opens in the direction of the mouth 266 and the nose 268 of a user 270. The air outlet 42 also protrudes out of the insertion opening 264 so that the cleaned air, as shown schematically by the arrows 184 in FIGS. 1 and 2, flows toward the mouth 266 and nose 268 of the user 270.

As can be seen clearly in FIG. 4, the clothing piece wall 262 separates the air inlet 40 from the air outlet 42. Only the housing cover 26 is visible from the cleaning device 12 from the outside.

The air outlet 42 is arranged in an interior space 272 defined by the item of clothing 14. The clamping surface 258 is located on a garment outside 274, the clamping surface 260 on a garment piece inside 276th

The pocket 248 is disposed adjacent to the device opening 246. The insertion opening 264 is arranged or formed approximately at the level of an upper boundary of the device opening 246.

The bag 248 is placed on the garment inside 276, in particular sewn or glued.

The device opening 246 is further formed in a pocket sidewall 278 of the pocket 248.

Optionally, a closure device 280 may be provided for at least partially closing the insertion opening 264. In particular, the closure device 280 may include one or more narrow straps 282 that engage over the insertion opening 264 but leave the air outlet 42 substantially free.

The strap or straps 282 may in particular be elastic and fixed on the one hand to the pocket 248 and on the other hand to the garment wall 262, for example by sewing or gluing. In particular, the closure device 280 prevents the cleaning device 12 from falling out of the pocket 248.

The garment 14 is formed, for example, in the form of a mask or a tube scarf 284.

A lower end member 286 forms a lower edge 290 of the garment 14. An upper end member 288 forms an upper edge 292 of the garment 14. Both the lower end member 286 and the upper end member 288 may be formed as molded pieces. in order to achieve as close as possible between the edges 290 and 292 of the garment 14 and the head 269 of the user. In particular, drafts in the direction of the nose 268 and the eyes 304 can be avoided.

In particular, a zipper extending from the lower edge 290 to the upper edge 292 may be used on the tube scarf 284 in order to open the item of clothing 14. In particular, such a zipper may be disposed on a back side of the garment 14, for example opposite the device opening 246.

The lower and upper end elements 286, 288 are formed substantially dimensionally stable compared to the garment wall 262 and preferably at least partially plastically deformable. In particular, they may be formed from a plastically deformable plastic or comprise at least one plastically deformable stiffening element 295, in particular of a metal. Such a stiffening element 295 is shown schematically in dashed lines in FIG.

The lower end element 288 is in the intended use, as shown schematically in Figures 1 and 2, in the chest region of the user 270 and in the transition region between the neck and shoulders of the user 270 on.

The end elements 286 and 288 form part of a cross-section adapter 294 for adjusting a shape and / or a length of the edges 290 and 292. Channels defined by the end elements 286 and 288, respectively, employ a tieback 296 and 298 for tearing the edges 290 and 292 and so on to set a length thereof. A set length of the drawstrings 296 and 298 can be fixed via a quick release clip 300 or 302. The upper end element 288 in particular allows a user-specific adaptation to a contour of the head 269 of the user 270 in such a way that the best possible sealing of the article of clothing 14 in the area between the nose 268 and eyes 304 is made possible.

The upper end element 288 extends during the intended use, in particular in the region of a lower end of the ears 306 of the user 270 to the rear hairline.

Optionally, as indicated schematically by dashed lines in FIG. 2, a carrying device 330 may be provided for hooking in particular to one or both ears 306 of the user 270. The carrying device 330 can in particular include an ear wear band 332, as shown by dashed lines in FIG. 2, for example, and / or at least one ear hook 334, as illustrated by dashed lines in FIG. 1, which at least partially overlap the ear 306 of the user 270.

Between the upper edge 292 and the lower edge 290 are slightly below the ears 306, that is closer to the lower edge 290, two exhaust openings 308 are formed. These are closed by an at least partially air-permeable textile material. Each of the exhaust ports 308 defines an opening area that is slightly larger than an opening area defined by the device opening 246. Optionally, they may also extend the exhaust ports 308 from the upper edge 292 to the lower edge 290.

The item of clothing 14, in particular its clothing piece wall 262, is preferably formed from a textile material, for example a woven fabric.

Preferably, in the front region between the lower 290 and the upper edge 292, ie in the area covering the air cleaning device 12, the mouth 266 and the nose 268, the garment wall 262 is somewhat stiffer than laterally in the area of the exhaust openings 308 or rear area where drawstrings 296 and 298 exit the channels. In particular, it can be ensured that the garment wall 262 does not bear directly on the user's face in the region of mouth 266 and nose 268, so that the purified air exiting from the air outlet 42 can safely reach the respiratory openings of the user 270.

The garment 14 is preferably formed of a moisture permeable material from the garment inside 276 to the garment outside 274. Thus, moisture or sweat contained in the air exhaled by the user 270 may be drained from the interior 272.

The garment outer side 274 is preferably water-repellent or impermeable to water and / or coated in order to prevent the ingress of atmospheric moisture into the interior space 272. For example, the garment panel 262 may comprise a suitably formed semi-permeable membrane.

The material occluding the exhaust ports 308 may be optically substantially identical to the rest of the garment wall 262 so that the exhaust ports 308 are virtually undetectable.

The blow-off openings 308 serve the purpose of blowing out exhaled air of the user 270 as well as excess purified air discharged from the air-cleaning device 12 through the air outlet 42 in the direction of the arrows 310 from the interior 272 back into an environment of the user 270.

The schematic structure of the air cleaning system 10 is greatly simplified again schematically shown in Figure 11.

In particular, the air cleaning device 12 may comprise a transmitting and receiving device 312 in order to transmit data without contact to the smart phone 16, which has a corresponding transmitting / receiving device 314. Thus, for example via a Bluetooth or other suitable radio link 316, a data exchange between the smartphone 16 and the control and / or regulating device 36 of the air cleaning device 12 take place.

The charging port 88 forming the interface device 318, via which the air cleaning device 12 can optionally be connected to a charger 320 or another battery 322, makes it possible either to charge the battery or to prolong an operating time of the air cleaning device 12 by using the further battery 322.

A state of charge of the battery 84 may be displayed via the display device 120, for example. The LED 124 indicates, in particular by the fact that it shines in a particular color, the state of charge. As shown in particular in FIG. 16, a green-emitting LED 124 is assigned to the "charged" state of charge, a yellow-emitting LED 124 is "partially charged" to the state of charge, and a red-emitting LED 124 is "discharged" to the state of charge. The latter state of charge or the red-glowing LED 124 directs the user 270 to charge the battery 84 or to connect the air cleaning device 12 via the interface device 318 with an additional battery 322.

Instead of the described LED 124, which allows a change between different colors, for example, an LED can be used, which can shine in only one color. Thus, in particular, an LED can only light up red when the battery 84 has fallen below a predetermined state of charge, and indicate by appropriate flashing on a required change of the air filter device 28.

The control and / or regulating device 36 may in particular comprise an operating hours counter, which records a total operating time of the air cleaning device 12. If an operating time specified by the manufacturer for a specific type of filter cassette 200 is reached, this can also be indicated by the display device 120 in particular. This can be achieved with the LED 124, in particular, by the LED 124 changing its luminous intensity by either flashing or pulsating to indicate a recommended change of the filter cartridge 200.

If the LED 124 is permanently lit in one of the three colors described above, a change of the air filter device 28 is not yet necessary.

The indication of a recommended or required change of the air filter device 28 can in particular be made on the basis of the operating hours of the air cleaning device 12, whereby, for example, the speed selected by the user 270 and thus a volume flow of purified air generated by the air cleaning device 12 can be taken into account. A corresponding data recording and calculation of a degree of contamination of the air filter device 28 can take place in the control and / or regulating device 36. As a result, information about a state of the air filter device 28 is independent of the use of a smartphone 16 with a corresponding application software, a so-called app.

If a change of the air filter device 28 takes place, the display device 120 can be reset accordingly. This is done by means of a resetting element defining reset button 324 of a back portion 325, which is arranged in particular in the air filter device receptacle 30 and only after removal of the filter cartridge 200 is accessible. If this is pressed once, for example, an hour counter 326 is reset.

For operating the air cleaning device 12 without a smartphone 16, for example, as shown schematically in FIG. 12, it is possible to proceed. If the device is deactivated, the activation element 112 can be actuated by pressing in the housing cover 26 defining the actuator 127 in the actuation region 126. If pressed for a long time, for example at least two seconds, the air cleaning device 12 is activated and the air conveyor 32 rotates in a first low speed level. 1

If the activation element 112 is briefly actuated again, that is, for example, shorter than two seconds, the speed step changes and the air conveyor device rotates at a higher speed in a speed step 2.

If the activation element 112 is briefly actuated once more, the control and / or regulating device 36 switches to a third, highest speed stage 3.

By again briefly pressing the activation element 112, the air cleaning device 12 is deactivated again.

Alternatively, from any set speed level by long pressing of the activation element 112, the air cleaning device 12 are deactivated.

Alternatively, the control and / or regulating device 36 may also be designed such that the air cleaning device 12 is activated by a long push of the activation element 112 and the speed of the air conveyor 32 is increased continuously until the activation element 112 is released. The speed of the electric motor 96 then remains constant until the activation element 112 is pressed again. If the maximum speed has not yet been reached, this is further increased by pressing the activation element 112, namely, at most until the maximum possible speed has been reached. Pressing the activation element 112 again deactivates the air cleaning device 12. This alternatively possible switching sequence is shown schematically in FIG. FIG. 14 shows a further alternative possibility of controlling the air conveying device 32.

The air cleaning device 12 is activated by long pressing of the activation element 112, first with the lowest speed level 1.

A brief press of the activation element 112 switches to the speed stage 2. A further brief press of the activation element 112 switches the air-cleaning device into the speed stage 3.

By again briefly pressing the activation element 112 is switched back to the speed level 1 again.

From each speed level, the air cleaning device 12 can be deactivated by a long press or actuation of the activation element 112.

Another possible control of the air cleaning device 12 with the control and / or regulating device 36 is shown schematically in FIG.

If the air control device 12 is deactivated, by briefly or long pressing the activation element 112, the air cleaning device 12 can be placed in the first speed level 1.

Another brief press of the activation element 112 switches the air cleaning device 12 in the speed stage second

If the activation element 112 is briefly pressed again, the air cleaning device 12 is switched to the third speed step. If the activating element 112 is pressed again for a second time, the system returns to the speed level 2 again.

Brief pressing of the activation element 112 in the speed stage 2 switches the air cleaning device 12 back into the speed stage 1.

Long depression of the activation element 112 at any speed level deactivates the air purification device 12.

The activation element 112, in conjunction with the control and / or regulation device 36 as described, forms an operating mode changeover device 328 for switching various operating modes of the air purification device 12, in particular for discretely and / or steplessly changing a volume flow generated by the air conveyor 32 by changing one Speed of the electric motor 96 and thus the blower 94th

Specifically, the operation mode switching device 328 may include an operation mode switching element 329 for switching between various operation modes of the air purification device 12. For example, the activation element 112 may constitute the operation mode switching element 329 or perform its function as described above.

The operation mode switching element 329 may be configured to generate different switching signals depending on how long the user 270 operates the operation mode switching element 329. By briefly or long pressing the activation element so the switching operations described above can be initiated.

The operating mode switching device 328 forms a manually operable, with the control and / or regulating device 36 cooperating Volumenstromstromeinstelleinrichtung 338 for manually setting a volume flow generated by the air conveyor. The app running on the smartphone 16 can further simplify operation for the user 270 via the Bluetooth connection.

For example, a position-dependent air quality factor, which depends in particular on geographical data, can be displayed, which can be called up, for example, via the Internet. This air quality factor is exemplified as "AIR QUALITY INDEX" in FIG. 18 to indicate to the user 270 a possible need for use of the air cleaning system 10.

In particular, descriptive texts on a hazardous situation or the currently dominating air pollutants can also be displayed.

Geographic location coordinates of a location where the user is located can also be displayed.

Optionally, a slider can be displayed on the display 330 of the smartphone 16, with which a volume of air delivered by the air conveyor 32 can be adjusted continuously. A volume flow in liters per minute is optionally displayed in addition.

In the control and / or regulating device 36, as an alternative to calculating when an indication of a required change of the air filter device 28 is to be displayed, for example, a pure expiration date are stored, so that, for example, a change after a predetermined number of hours or for example once per Month can be recommended by the display device 120.

Furthermore, optionally a state of the air filter device 28 or a saturation thereof can be displayed on the display 330 of the smartphone 16. The displayed value which is calculated in the control and / or regulating device 36 and stored in this, can over the Bluetooth connection 316 are transmitted from the air cleaning device 12 to the smartphone 16, in particular at regular intervals.

An indication of the filter state can take place, for example, in the form of a percentage value and, alternatively or additionally, by means of a status bar, for example in the form of a circle.

If a change of the air filter device 28 is required, for example, a corresponding message may appear on the display 330 of the smartphone 16. This message may be in addition to the above-described flashing or pulsing of the LED 124, by an additional pop-up window on the display 330 of the smartphone 16. If the user 270 confirm this message only, it appears at the next start or at the next activation of the air cleaning device 12 again.

Optionally, one or more filter cartridges 200 can be ordered directly from the app as a replacement, either by so-called in-app purchases or opening corresponding web pages in a browser of the smartphone 16.

Optionally, the smartphone app may also issue push messages requesting the user 270 to use the air cleaning system 10 in accordance with poor air quality at the location where the user 270 is located.

Instead of an air quality factor or air quality index, real or measured values can alternatively or optionally be displayed, for example air pollutants determined by means of one or more sensors 331 arranged on the air purification device 12. The sensors 331 may in particular also comprise an acceleration sensor, an air quality sensor or a particle sensor. Instead of displaying only the volume flow of purified air on the display 330, alternatively or additionally, a filtered-out amount of dirt or due to the use of the air cleaning system 10 on the day not yet inhaled amount of dirt can be displayed.

With the app, instead of ordering new filter cartridges 200, it is also possible to make further purchases of accessories for the air cleaning system 10. In particular, with a corresponding authorization, an order for a new filter cassette 200 can take place automatically with corresponding contamination of the filter cassette 200 currently being used.

The air cleaning system 10 described above also allows a user 270 to breathe high quality air in places of high air pollution, which is cleaned by the air cleaning device 12 and supplied to the user 270 through the air outlet 42 in the interior 272 of the garment 14. The risk of harm to the health of the user 270 can thus be significantly reduced.

The air cleaning system 10 can be used in particular by allergy sufferers. The air cleaning system 10 is particularly suitable when using a corresponding filter element 204 to filter pollen from the ambient air and the user 270 virtually air free from pollen to mouth 266 and nose 268 to conduct.

LIST OF REFERENCE NUMBERS

Air purification system

Air cleaner

garment

Smartphone

casing

Rear panel

first housing part

second housing part

housing cover

Housing front

Air-filter device

Air-filter device recording

Air conveyor

Power supply means

Control and / or regulating device receiving space

air intake

air outlet

annular gap

longitudinal axis

flange

rib

Air inlet opening

Casing wall

The End

stiffeners

Fastener opening bayonet slot

insertion

head Start

bottom

locking section

nose

Aufgleitrippe

threaded bushing

fastener

head

battery

outside

charging port

Charge port door

Lüfterradaufnahme

fan

electric motor

motor longitudinal axis

control line

drive shaft

motor housing

fan

Lüfterradradlängsachse

motor housing

damping element

circuit board

energizer

activation device

button

switching element

cap

display

light element 124 LED

126 operating range

127 actuator

128 back side

130 engine attitude

131 Motor bracket opening

132 retaining ring

134 footbridge

136 edge

138 passage opening

140 edge

142 side surface

144 enclosure ring

146 front edge

148 front edge

150 air guide element

152 engine housing passage opening

154 opening

156 fan wheel inlet

158 flange

160 front edge

162 fan wheel body

164 fan wheel channel

166 deflection surface

168 end

170 fan outlet

172 front wall

174 channel side wall section

176 boundary wall

178 outlet space

180 air outlet opening

182 face

184 arrow 186 air inlet level

188 arrow

190 guide surface

192 guide surface opening

194 air guide

196 guide surface

198 air flow

200 filter cassette

202 filter carrier

204 filter element

206 first filter support element

207 first filter carrier element outer surface

208 second filter support element

209 second filter carrier element outer surface

210 first filter element receptacle

212 second filter element receptacle

214 pleated filter

216 filter element wall section

218 first sealing element

219 sealing ring

220 end face

222 second sealing element

223 sealing ring

224 endface

225 sealing element surface

226 wall section

228 sealing lip

230 positioning device

232 first positioning element

234 Positioning recess

236 positioning groove

238 second positioning element

239 Positioning recess 240 third positioning element

241 Positioning projection

242 annulus

244 fixture fixture

246 device opening

248 bag

250 opening edge

252 edge holding device

254 opening edge receptacle

256 recording groove

258 clamping surface

260 clamping surface

262 garment wall

264 Import opening

266 mouth

268 nose

269 head

270 users

272 interior

274 garment outside

276 garment inside

278 pocket sidewall

280 closure device

282 band

284 tube scarf

286 lower end element

288 upper end element

290 lower edge

292 upper edge

294 cross-section adjustment device

295 stiffening element

296 drawstring

298 drawstring 300 quick release clip

302 quick release clip

304 eye

306 ear

308 exhaust opening

310 arrow

312 transmitting / receiving device

314 transceiver

316 Bluetooth connection

318 interface device

320 charger

322 battery

324 reset button

325 Rücksteileinrichtung

326 operating hours counter

328 operating mode switching device

329 operating mode switching element

330 display

331 sensor

332 carrying device

334 ear straps

336 earhook

338 volume flow adjustment device

Claims

claims

A portable individual air cleaning system (10) comprising an air filter device for a portable individual air cleaner (12) comprising an air inlet (40) for air to be cleaned and an air outlet (42) for purified air, characterized in that the air filter device ( 28) in the form of a filter cartridge (200) is formed.

2. Portable individual air cleaning system according to claim 1, characterized in that the filter cartridge (200) comprises a filter carrier (202) and at least one filter element (202) arranged or formed on the filter element (204).

3. Portable individual air cleaning system according to claim 1 or 2, characterized in that the filter cartridge (200) at least one sealing element (218, 222) carries for sealing the air filter means (28) and a housing (18) of the air cleaning device (12) relative to each other.

4. Portable individual air cleaning system according to claim 2 or 3, characterized in that the at least one filter element (204) and the filter carrier (202) are sealed relative to each other.

5. Portable individual air cleaning system according to one of claims 2 to 4, characterized in that the at least one filter element (204) and the filter support (202) non-positively and / or positively and / or materially connected to each other, in particular glued.

6. Portable individual air cleaning system according to one of claims 2 to 5, characterized in that the at least one filter element (204) is permanently connected to the filter carrier (202).

7. Portable individual air cleaning system according to one of claims 2 to 5, characterized in that the filter support (202) is formed dimensionally stable.

8. Portable individual air cleaning system according to one of claims 2 to 5, characterized in that the filter carrier (202) at least a first filter support member (206) and at least a second filter support member (208) and that the at least one filter element (204) between the at least a first and the at least one second filter support member (206, 208) is arranged or formed.

9. Portable individual air cleaning system according to claim 8, characterized in that the at least one first filter carrier element (206) and the at least one second filter carrier element (208) are formed separately from each other and indirectly connected to each other, in particular via the at least one filter element (204).

10. A portable individual air cleaning system according to claim 8 or 9, characterized in that the at least one first filter support member (206) is circular disc-shaped or substantially circular disc-shaped and has a first annular filter element receptacle (210) parallel to one of the filter cartridge (200). defined longitudinal axis (46) is open to receive the at least one filter element (204).

11. A portable individual air cleaning system according to any one of claims 8 to 10, characterized in that the at least one second filter support member (208) circular disc-shaped or substantially circular is disc-shaped and has a second annular filter element receptacle (212) which is parallel to one of the filter cartridge (200) defined longitudinal axis (46) open facing for receiving the at least one filter element (204).

12. Portable individual air cleaning system according to claim 11, characterized in that the first filter element receptacle (210) and the second filter element receptacle (212) are open towards each other.

13. Portable individual air cleaning system according to one of claims 9 to 12, characterized in that the at least one sealing element (218, 222) on the at least one first filter support member (206) and / or at least a second filter support member (208) is arranged or formed.

14. A portable individual air cleaning system according to one of claims 9 to 13, characterized in that the at least one sealing element (218) on at least one first filter support member (206) and / or at least a second filter support member in the radial direction on a longitudinal axis (46) of Filter cassette (200) projecting or formed out.

15. Portable individual air cleaning system according to one of claims 9 to 14, characterized in that the at least one sealing element (218, 222) on at least one first filter support member (206) and / or at least a second filter support member (208) parallel to a longitudinal axis ( 46) of the filter cassette (200) facing away from the at least one first filter support member (206) and / or from the at least one second filter support member (208) and / or arranged or formed above this.

16. Portable individual air cleaning system according to one of claims 9 to 15, characterized in that the at least one sealing element (222) on at least one first filter support element and / or at least a second filter support member (208) on one of the other filter support member (206) away facing filter carrier element outer surface (209) is arranged or formed projecting.

17. Portable individual air cleaning system according to one of the preceding claims, in particular according to the preamble of claim 1, characterized in that at least one first positioning element (232) is arranged or formed on the air filter device (28).

18. A portable individual air cleaning system according to claim 17, characterized in that the at least one first positioning element (232) in the form of a positioning projection or a positioning recess (234) is formed.

19. Portable individual air cleaning system according to claim 17 or 18, characterized in that the at least one first positioning element (232) extends in the radial direction relative to the longitudinal axis (46).

20. Portable individual air cleaning system according to claim 18 or 19, characterized in that the positioning recess (234) in the form of a positioning groove (236) is formed.

21. Portable individual air cleaning system according to one of claims 9 to 20, characterized in that at least one sealing element (218, 222) is arranged or formed on the first filter carrier element (206) and on the second filter carrier element (208).

22. Portable individual air cleaning system according to one of claims 17 to 21, characterized in that the at least one sealing element (218) extends transversely to the at least one first positioning element (232).

23. Portable individual air cleaning system according to one of claims 3 to 22, characterized in that the at least one sealing element (218, 222) in the form of a self-contained sealing ring (219, 223) is formed.

24. Portable individual air cleaning system according to one of claims 3 to 23, characterized in that the at least one sealing element (218, 222) is formed of an elastically deformable plastic.

25. Portable individual air cleaning system according to one of claims 2 to 24, characterized in that the filter support (202) is made of a plastic, cardboard and / or a metal sheet.

26. Portable individual air cleaning system according to one of claims 9 to 25, characterized in that on at least one sealing element (222) on a filter support element (208), on which it is arranged facing away from sealing element surface (225) at least one second positioning element (238 ) is arranged or formed.

27. A portable individual air cleaning system according to claim 26, characterized in that the at least one second positioning element (238) in the form of a positioning projection or a positioning recess (239) is formed.

28. A portable individual air cleaning system according to claim 26 or 27, characterized in that the at least one first positioning element (232) and the at least one second positioning element (238) pulled on the longitudinal axis (46) are arranged or formed corresponding to each other.

29. Portable individual air cleaning system according to one of claims 26 to 28, characterized in that the at least one second positioning element (238) is narrower than the at least one first positioning element (232) is formed.

30. Portable individual air cleaning system according to one of claims 2 to 29, characterized in that the at least one filter element (204) in the form of a pleated filter (214) having a plurality of mutually inclined filter element wall sections (216) is formed and that the filter element wall sections (216) in parallel or substantially parallel to a longitudinal axis (46) of the filter cartridge (200).

31. Portable individual air cleaning system according to one of claims 2 to 30, characterized in that the at least one filter element (204) made of paper, plastic and / or glass fiber is formed.

32. Portable individual air cleaning system according to one of claims 2 to 31, characterized in that the at least one filter element (204) is designed in the form of a mechanical and / or chemical filter element.

33. Portable individual air cleaning system according to one of claims 2 to 32, characterized in that the at least one filter element (204) is in the form of a coarse dust filter and / or in the form of a fine dust filter and / or in the form of a Schwebstofffilters.

34. Portable individual air cleaning system according to one of claims 2 to 33, characterized in that the at least one filter element (204) is designed in the form of a HEPA filter.

35. Portable individual air cleaning system according to one of claims 2 to 34, characterized in that the at least one filter element (204) is formed according to the filter class E10, El l, E12, E13 or H 13.

36. Portable individual air cleaning system according to one of claims 2 to 35, characterized in that the at least one filter element (204) is designed according to the filter class M5 to M9.

37. Portable individual air cleaning system according to one of the preceding claims, in particular according to the preamble of claim 1, characterized by a portable individual air cleaning device (12) comprising an air inlet (40) for air to be cleaned and an air outlet (42) for purified air.

38. A portable individual air cleaning system according to claim 36, characterized in that the air cleaning device (12) comprises a housing (18), that the air filter device (28) in the housing (18) is arranged or formed and that one with the air filter device (28) fluidly effective connected air conveying means (32) in the housing (18) is arranged or formed for generating an unfiltered air flow from the air inlet (40) to the air filter means (28) and a filtered air flow from the air filter means (28) away towards the air outlet (42).

39. Portable individual air cleaning system according to claim 38, characterized in that the air conveying device (32) comprises a motor-driven blower (94).

40. A portable individual air cleaning system according to claim 39, characterized in that the fan (94) comprises an electric motor (96).

41. Portable individual air cleaning system according to claim 40, characterized in that the air filter device (28) surrounding the electric motor (96) in the housing (18) is arranged.

42. A portable individual air cleaning system according to claim 40 or 41, characterized in that the electric motor (96) in a motor bracket (130) is held.

43. Portable individual air cleaning system according to claim 42, characterized in that the electric motor (96) in the motor mount (130) is held vibration damped.

44. Portable individual air cleaning system according to one of claims 38 to 43, characterized in that the housing (18) has an air filter device (28) facing the housing cover (26) which limits the air inlet sections.

45. Portable individual air cleaning system according to claim 44, characterized in that the housing cover (26) is formed deformable and / or removable.

46. A portable individual air cleaning system according to claim 44 or 45, characterized in that the housing (18) has a Luftfiltereinrichtungsaufnahme (30) for receiving the air filter means (28) and that the housing cover (26) closes the Luftfiltereinrichtungsaufnahme (30).

47. Portable individual air cleaning system according to one of claims 44 to 46, characterized in that the housing cover (26) with the housing (18) in a connection position non-positively and / or positively connected.

48. Portable individual air cleaning system according to one of the preceding claims, in particular according to the preamble of claim 1, characterized by a garment (14) for covering the mouth (266) and nose (268) of a user (270), which garment (14) formed for holding the portable individual air cleaning device (12) and which item of clothing (14) a garment inside (276) facing the user (270), a garment outside (274) facing away from the user (270) and a device receptacle (244) for receiving the air cleaning device ( 12).

A portable personal air cleaning system according to claim 48, characterized in that the air cleaning device (12) is arranged and configured such that the air inlet (40) is located or formed on the garment outer surface (274) and the air outlet (42) is on the garment inside (276) is arranged or formed and that the air inlet (40) from the air outlet (42) by a garment wall (262) of the garment (14) is separated.

50. The portable personal air cleaning system of claim 48 or 49, characterized in that the device receptacle (244) comprises a device opening (246) formed in a garment wall (262).

51. A portable individual air cleaning system according to claim 50, characterized in that the device opening (246) by a peripheral opening edge (250) is limited, which opening edge (250) is particularly elastic.

52. Portable individual air cleaning system according to one of claims 37 to 51, characterized in that the air purification device (12) an edge holding device (252) comprises for non-positive and / or positive holding the opening edge (250).

53. Air cleaning system according to claim 52, characterized in that the edge holding device (252) has a peripheral opening edge receptacle (254) for at least partially receiving the opening edge (250).

54. Air cleaning system according to claim 53, characterized in that the opening edge receptacle (254) in the form of a circumferential receiving groove (256) is formed.

55. Air cleaning system according to one of claims 52 to 54, characterized in that the edge holding device (252) has at least two mutually facing clamping surfaces (258, 260), between which the opening edge (250) is arranged or held.

56. A portable individual air cleaning system according to claim 55, characterized in that a first clamping surface (258) of the at least two clamping surfaces (258, 260) on a first housing part (22) of the air cleaning device (12) is arranged or formed that a second clamping surface ( 260) of the at least two clamping surfaces (258, 260) on a second housing part (24) of the air cleaning device (12) is arranged and formed and that the first housing part (22) and the second housing part (24) non-positively and / or positively connected are.

57. A portable individual air cleaning system according to any one of claims 37 to 56, characterized in that the air inlet (40) defines an air inlet level (186) which is parallel to a front of the housing housing.

58. Portable individual air cleaning system according to claim 57, characterized in that the housing cover (26) forms a part of the housing front side (27).

59. Portable individual air cleaning system according to one of the claims

56 to 58, characterized in that the housing cover (26) and the first housing part (22) between them form the air inlet (40).

60. Portable individual air cleaning system according to one of the claims

57-59, characterized in that the air outlet (42) defines an air outlet direction (184) which is parallel or substantially parallel to the air inlet plane (186).

61. A portable individual air cleaning system according to any one of claims 37 to 60, characterized in that a free air inlet cross-sectional area defined by the air inlet (40) is greater than a free air outlet cross-sectional area defined by the air outlet (42).

62. A portable individual air cleaning system according to any one of claims 46 to 61, characterized in that on the air filter device receptacle (30) at least a third positioning element (240) is arranged or formed, which with the first positioning element (232) and / or the second positioning ( 238) is engaged in a positioning position in which the air filter device (28) is inserted into the air filter device receptacle (30).

63. Portable individual air cleaning system according to one of claims 37 to 62, characterized by a power supply device (34) for operating the air conveyor device (32), in particular in the form of a network-independent power supply device (34).

64. Portable individual air cleaning system according to claim 63, characterized in that the energy supply device (34) in the form of a battery (84) is formed, in particular in the form of a rechargeable battery (84).

65. A portable individual air cleaning system according to claim 63 or 64, characterized in that the energy supply device (34) is arranged in or on the housing (18).

66. A portable individual air cleaning system according to any one of claims 37 to 65, characterized by an activation device (114) for activating and deactivating the air conveying device (32).

67. A portable individual air cleaning system according to claim 66, characterized in that the activation device (114) at least one activation element (112), in particular in the form of an electrical switching element (117), comprises for activating and deactivating the air conveyor (32).

68. A portable individual air cleaning system according to claim 66 or 67, characterized in that the activation device (114) comprises an actuating member (127), in particular in the form of the housing cover (26), which cooperates with the at least one activation element (112) for actuating the same in particular by deformation or movement of the actuating member (127) in the direction of the filter cartridge (200).