EP3457035B1 - Personalised air purification device with a blow-off part - Google Patents

Description

The invention relates to a personalized air purification device according to the preamble of claim 1.

The central air conditioning of open-plan offices and / or living rooms in buildings is perceived as inappropriate by the individual users of the room, because one user desires an air jet directed against the body, while other users reject such an air jet.

In open-plan offices and in other rooms in which several people work together, there is therefore an increasing need to supply the respective person in the room with an individualized and thus also personalized air flow, which in particular is cleaned and / or scented.

For this reason, air conditioning systems in living and working spaces that have central blowing devices, for. B. are installed in false ceilings, make a compromise between the ventilation needs of different users of the respective living or working space to be ventilated.

Particularly sensitive people who spend a lot of time in one place in open-plan offices and in other rooms have an increasing need to breathe air that has been cleaned and / or can be scented.

There is therefore a need to additionally clean and / or scent the air in rooms and to supply it to a user in a personalized manner.

This is also because air conditioning systems cannot achieve complete freedom from allergies (freedom from flower and grass pollen) and no odor from the room air supplied. Furthermore, because room air cleaners, if available, cannot completely clean all the room air in a room due to constantly active sources of air pollution.

With the subject of US 9,375,547 B2 and US 9,144,697 B2 there were attempts to individually supply cleaned or otherwise conditioned room air to a user. The disadvantage of the arrangement described there is that the air supply takes place in the manner of a hairdressing hood, ie the user must be below - or even inside - an air scoop which generates an air blow jet directed against the head of the user.

From the US 8,414,671 B2 it is also known to store the head of the user in a box-shaped device in order to supply the user with a clean, coordinated, stream of air.

With the US 2009/143004 A1 discloses an air conditioner with a housing having an air intake area for drawing air into the housing and an air blow-out area for blowing the cleaned air out of the housing, the cleaned blow-out air flow being directed against the body of a user via a blow-out part. The blow-out part is fastened with a releasable fastening on the air blow-out area of the housing.

The disadvantage of the cited documents is the need to arrange their own air supply devices, which may restrict the freedom of movement of the user. Another disadvantage is the difficult handling, because the cleaned air is generated by a device placed on the floor, which is connected to the air supply hood via a relatively long hose. The air flow through a hose is but with additional noise and increased flow resistance.

Another disadvantage of this known technology is that dirt and bacteria can settle in the device itself and in the long air supply hose, which lead to a contamination of the supplied air.

In particular, the cited prior art documents do not show the possibility of how to direct a blow-out air stream onto the body of a user without having to use a connecting hose between the blow-out unit and the device itself.

Furthermore, the cited prior art does not show the possibility of connecting the blow-out part directly to the air cleaning device with ease of handling.

The invention is therefore based on the object of further developing a personalized air cleaning device of the type mentioned at the outset in such a way that the device can be handled easily and improved operational safety with improved hygienic conditions.

To achieve the object, the invention is characterized by the technical teaching of claim 1.

It is a feature of the invention that a blow-out part is now provided which is connected directly to the housing of the personalized air cleaning device and which is fastened to the air-blowing area of the housing by means of a releasable fastening.

It is preferred if the releasable fastening is designed either as a plug fastening and / or as a magnetic holder.

The advantage of both releasable types of fastening is that the user can remove the entire blow-out part, if necessary, in order to direct an air flow against the body from the blow-out lamellae on the housing. The term “air flow” in the sense of the invention is understood to mean that a barely noticeable air flow is preferably directed against the body of the user, which has more the quality of an air curtain. This means a laminar air flow with low flow energy, which is just sufficient to displace the other ambient air surrounding the user.

If, on the other hand, an air flow directed more strongly against the body, in particular against the head area, of the user is desired, the user can at any time attach the blow-off part according to the invention to the blow-out lamellae of the device in order to achieve an even more targeted blow-out effect. Here too, an air curtain should preferably be generated at the outlet of the blow-out part.

Instead of the plug-in fastening according to the invention, other releasable fastenings can also be provided, in particular a magnetic holder in which, for example, one or more permanent magnets are arranged on the circumference of the housing of the air cleaning device, and corresponding metallic adhesive surfaces are provided on the opposite blow-out part.

Conversely, it can also be provided that permanent magnets are present on the blow-out part, which can carry out a magnetic adhesive bond with assigned metallic surfaces on the housing edge of the housing.

As a further detachable fastening, it is provided according to the invention that clamp fasteners are provided, a clamping part being arranged on one part, for example the housing, and a clamping receptacle on the opposite part, for example the blow-out part.

It is also possible to provide threaded screw connections, but these are associated with higher handling costs.

In a preferred embodiment of the invention, it is provided that the air blow-out area on the device consists of a number of blow-out lamellae arranged radially on the outer circumference of the housing, on which the blow-out part can be detachably attached, a plug connection by means of a plug being preferred. This results in particularly easy handling.

In a preferred embodiment, the blow-out part is designed as a semi-open and otherwise sealed, chamber-shaped part which is open in the direction of the blow-out lamellae on the housing. It consists of two spaced-apart side walls, which are connected in a sealed manner by a top wall.

The blow-out part then in turn forms a blow-out area, which is preferably clad with blow-out lamellas in order to produce a laminar, low-turbulence air curtain.

By using such a blow-out part, it is possible to arrange a holding frame in the interior of the blow-out part - that is, in the area in front of the blow-out lamellae - which is suitable for holding a catalytic converter and / or a scent and / or an additional blow-out filter.

Accordingly, additional filter functions or air improvement functions can be assigned to the blow-out part by arranging a catalytic converter.

In a preferred embodiment of the invention, the housing of the air cleaning device is approximately disk-shaped, round or oval or polygonal formed, and the air intake area and the air discharge area lie in the same radial plane on the circumference of the housing.

This results in a particularly elegant appearance of the housing, because it is approximately disc-shaped in the same size and thickness, as well as the other housing features, like a disc, as is normally used as a throwing device in sports.

This approximately disk-shaped design of the air cleaning device makes it possible for the first time to continuously arrange the air intake area and the air blow-out area on the circumference of the disk-shaped housing.

In this case, it is preferred if the air intake area is assigned an angular range of, for example, 270 to 300 degrees over the circumference of the housing, and the air blow-out area is assigned only an angular range in the range between 60-90 degrees, for example.

This has the advantage that the air intake area, which extends over an angular range of preferably 270 to 300 degrees over the circumference of the housing, is now formed over a large area and a corresponding C-shaped filter can be arranged in the entire air intake area, which is also about the Angular range of preferably 270 to 300 degrees extends in the interior of the housing.

If such a filter is designed as a pleated filter, there are particular advantages with regard to the effectiveness of air purification, the filter effect and the lower noise level.

It is of course possible to extend the air intake area to an angle of 300 degrees, in which case the air outlet area then only covers an angle range of 60 degrees in an analogous manner.

An additional blow-out filter can therefore also be arranged in the interior of the housing in the air blow-out area, and additional noise reduction measures can be provided, such as Blow-out baffles and the like.

It is preferred if the user is assigned an optical aid which indicates to him on which part of the blowout lamellae on the housing he can attach the blowout part.

For this purpose, it is provided that an orientation light is arranged in the area of the air outlet area in the area of the outlet-side fins, which optically indicates the plug-in location of the plug-in fastening in the area of the housing-side outlet area.

Such an orientation light can be designed, for example, as a red-lit LED that illuminates precisely the blow-out lamella on which the plug-in fastening of the blow-out part is to be attached.

In a further development, it can be provided as a further increase in the ease of use that an indicator light bar is arranged in the air outlet area of the housing, which indicates the amount of air blown out and / or its speed in accordance with the length and / or intensity of the indicator light bar. Such a display light bar is particularly advantageous when only a barely perceptible air curtain is generated on the outlet side, which is not noticeable by the user.

By observing the indicator light bar, he can thus control the function and amount and / or intensity of the blown-out air.

It is also provided here that the indicator light bar consists of individual LEDs, which preferably shine in blue color and which are also arranged in the air outlet area of the housing-side outlet lamellae.

Depending on the strength of the set air flow or the air speed, more or fewer LEDs are displayed, so that overall the sequence of the individual LEDs arranged between the housing-side blow-out lamellae results in a display light bar, the length of which is proportional to the amount of air blown out and / or blown air speed is.

A particularly aesthetically favorable impression is obtained when the blow-out part is at least partially transparent and / or translucent and the indicator light bar is visible through the blow-out part.

The entire blow-out part thus lights up, for example, in the blue color of the LEDs of the display light bar and the light impression which is generated in the entire area of the blow-out part is then a display for the display light bar.

It can also be provided in a further development that further optical displays are arranged on the display light bar, which are also made of a transparent plastic and which also receive the light emitted by the LEDs on the housing as a light guide and on a certain, clearly visible luminous surface Bring ad.

Due to the preferred design of the housing in the form of a disk or at least in a shape approximating the disk, there is the further advantage that the housing is now rotationally symmetrical and can consequently be arranged on an associated stand so as to be rotatable about a central central transverse axis.

This results in a change in the exhaust air flow within wide limits, because the housing can be freely rotated in any rotation angle via its rotation axis defined by the stand, whereby rotation angles of more than 360 degrees are also possible.

For this purpose, it is provided that the power supply for the housing-side fan and the remaining electronics is also arranged in the stator, which engages in the axis of rotation on the side surface of the housing, so that the housing itself is wireless and is supplied with power via the stator-side rotary current connector ,

On the housing side, the rotary current connector consists of an annular sleeve which is arranged on the one housing shell and in the center region of which a jack socket is arranged for the introduction of a jack plug on the stator side.

The stator-side plug is located in the center area of a stator-side ring sleeve and by plugging the stator-side plug into the housing-side receptacle, a power connection is thus established which works similarly to a jack plug connection with two power wires.

It is preferred if a direct current between 12 to 24 volts with a current of e.g. 2 amps is supplied.

The stand thus forms a current-carrying multipole jack connection with the housing of the air cleaning device in the region of the axis of rotation.

To control the amount of air or the air speed, it is further preferred if a button is present on one of the housing shells, which button is preferably designed as a capacitively switching button.

The user therefore only has to touch the button with one finger of a hand in order to control the speed and / or the switching on and off of the low-current fan.

The air volume set with this button is then displayed via the - preferably blue - LEDs on the discharge-side light bar.

The subject matter of the present invention results not only from the subject matter of the individual patent claims, but also from the combination of the individual patent claims with one another.

All of the information and features disclosed in the documents, including the summary, in particular the spatial configuration shown in the drawings, are claimed to be essential to the invention insofar as they are new to the prior art, individually or in combination.

In the following, the invention will be explained in more detail with reference to drawings showing only one embodiment. Here, from the drawings and their description, further features and advantages of the invention that are essential to the invention emerge.

• Figur 1: eine perspektivische Ansicht einer Luftreinigungsvorrichtung mit einem Ausblasteil in einer ersten Ausführungsform
• Figur 2: die gleiche Darstellung wie Figur 1
• Figur 3: die Stirnansicht auf die Luftreinigungsvorrichtung mit einem Ausblasteil in einer dritten Ausführungsform.
• Figur 4: die Darstellung des Aufsteckvorganges des Aufblasteils auf die ausblasseitigen Gehäuselamellen der Luftreinigungsvorrichtung
• Figur 5: die Stellung des aufgesteckten Ausblasteils auf dem Gehäuse mit Darstellung eines Orientierungslichtes
• Figur 6: die gleiche Darstellung wie Figur 5 mit Darstellung eines ausblasseitig angeordneten Anzeigelichtbalkens
• Figur 7: perspektivische Seitenansicht des Gehäuses bei entferntem Ausblasteil

Show it:

• Figure 1 : A perspective view of an air cleaning device with a blow-out part in a first embodiment
• Figure 2 : the same representation as Figure 1
• Figure 3 : the front view of the air cleaning device with a blow-out part in a third embodiment.
• Figure 4 : the representation of the pushing-on process of the inflating part onto the blow-out housing lamellae of the air cleaning device
• Figure 5 : the position of the plug-on blow-out part on the housing with the display of an orientation light
• Figure 6 : the same representation as Figure 5 with a display light bar arranged on the outlet side
• Figure 7 : Perspective side view of the housing with the discharge part removed

In Figure 1 and 2 An air cleaner 1 is shown, which essentially consists of a disk-shaped housing 42, in which the intake air 2 is drawn into the interior via the air intake area 5 shown in dashed lines via intake blades 3 arranged radially on the outer circumference.

The intake air 2 is therefore sucked into the device in the radial direction, in the direction of the arrow 4, over a circumferential area extending in the range of 270-300 degrees.

The circumferential area for the air intake extends from position 6 to position 7.

The air blow-out area 44 consequently extends in an angular range of preferably 60-90 degrees from position 6 to position 7 and in this air blow-out area 44 a blow-out part 25 is arranged according to the invention, which essentially consists of two mutually parallel side walls 14, 15 which are formed by a top wall 16 are connected to one another.

The area located opposite the top wall 16 is open, so that the air flow blown out of the housing-side blow-out lamella 12 in the area of the air blow-out area 14 is concentrated in the blow-out part 25 in this semi-open housing, and is discharged as blow-out air flow 17 in the direction of arrow 18 by means of blow-out lamellae 8 arranged in the direction of the arrow.

This Ausblasluftstrom 17 has such a low air speed that it is practically not noticed by the user and to demonstrate the function of the An air cleaner is therefore additionally provided with an indicator light bar 38 in the area of the blow-out lamella 12 on the housing, the function of which will be described later.

Figure 2 shows the embodiment Figure 1 , in which further reference symbols are entered to clarify the function.

The indicator light bar arranged in the air blow-out area 44 inside the blow-out lamella 12 on the housing therefore sends light rays 27 radially outward into the blow-out part 25, which is made of a light-conducting plastic and thereby lights up more or less.

Out Figure 3 it follows that the housing 42 is mounted on a stand 26 so as to be rotatable about a horizontal axis of rotation 41 in the arrow directions 43.

The stand 26 forms a rotational connection for the power lines arranged there, so that the low current introduced into the stand 26 via the power cable 21 is introduced via the vertical arm into a stand-side latching cover 23, in the central central area of which a two-pole jack plug is arranged, which is located in an opposite one Jack socket can be locked, which is arranged in the region of a housing-side ring sleeve 19.

In this way, while the power supply is maintained, a complete rotation of the housing 42 about the axis of rotation 41 is made possible in any angular range - even multiple times by an angle of 360 degrees - in the direction of arrow 43.

The stand 26 can have various embodiments of feet 22.

According to the invention, the blow-out part 25 is easily detachably connected to the blow-out fins 12 of the housing 42 on the housing side, as is evident in particular from FIGS Figures 4 and 5 can be seen.

The plug-in fastening 9 is preferably formed from two plug pins 31 which are parallel to one another and arranged at a mutual spacing from one another and which are preferably formed in the region of the mutually opposite side walls 14, 15 on the blow-out part 25, directed radially inwards.

These plug pins 31 can be connected by a central pin 32, which is designed as a locking pin. The two plug pins can overlap a certain blow-out lamella from above, while the central pin grips under the blow-out lamella below.

For orientation where this plug-in fastening 9 is to be plugged in the area of the blow-out lamella 12 on the housing side, it is provided according to the invention that in the area of the blow-out lamella 12 an orientation light 33 consisting of an LED is provided, which illuminates precisely the blow-out lamella 12 on which the plug-in pin 31, 32 should be attached.

It is of course possible to plug the plug-in attachment 9 above and below the orientation light 33 onto other blow-out lamellae 12, which then makes it possible for part of the blow-out air to flow out of the blow-out part 25 and another part of the blow-out air from the blow-out lamellae 12 on the housing without to pass through the blow-out part 25.

In this way, by changing the stretching attachment of the blow-out part 25 on the blow-out blow-out lamellae 12, the blow-out air flow can be changed within wide limits.

To seal the half-open housing of the blow-out part 25 with respect to the blow-out lamellae 12, the blow-out part 25 also has upper and lower Stop tabs 11, which fit positively on the top of the exhaust blades 12.

Instead of a plug fastening 9 with the plug pins 31, 32, other releasable fastening means can also be used, such as e.g. Clamp connections, wedge connections, magnetic adhesive connections, threaded screw connections and the like releasable connections more.

The approximately disk-shaped housing also consists of two rotationally symmetrical housing shells 20, which according to Figure 3 are slightly curved and form the air intake area 5 and the air blow-out area 44 in the same radial plane in the area of a circumferential annular groove 40.

The arrangement of the air intake area 5 and the air blow-out area 44 in the area of a recessed annular groove 40 gives the possibility that the blow-out part 25 with its side walls 14, 15 can be placed in a sealed manner directly on the walls of the annular groove 40 on the housing.

It is preferred, moreover, if the blow-out area of the blow-out part 25 is clad with a discharge grille body 30, in which the in Figure 3 Blow-out blades 8 are formed.

The outflow grille body 30 is preferably in the region of a receiving frame 34 according to FIG Figure 4 arranged so that there is the possibility of mounting an additional inflation air filter or a catalyst in the form of a substrate coated with a catalyst such as foam or a honeycomb honeycomb in the receiving frame 34 for further processing of the blown-out air.

It is also possible to arrange scenting in the receiving frame 34.

The Figure 6 shows the arrangement of a display light bar 38 in the area of the housing-side blow-out lamellae 12, a number of - for example blue-glowing - LEDs being arranged in the space between the blow-out lamellae 12.

The indicator light bar may span an indicator light bar area 35 that approximately matches the air inflation area 44.

A preferably capacitively switchable button 39 can then be arranged on one (or both) housing shell 20, which activates the display light bar 38.

Depending on the switching frequency of the button 39, the length of the display light bar 38 is thus lengthened or shortened and the speed of the housing-side fan is changed accordingly.

The blow-out part 25 preferably consists of a transparent plastic and is thus illuminated in its entire area by the blue-shining LEDs. The strength of the set airflow is thus recognizable due to the visible lighting impression.

Accordingly, the length of the display light bar area between positions 36 and 37 can be changed in accordance with the switching frequency of the preferably capacitive switching button 39.

The Figure 7 shows that the LEDs forming the display light bar 38 and distributed between the blow-out lamellae 12 can produce a lighting impression of light rays in the direction of arrow 46 even without mounting a blow-out part 25.

The air blow-out area 44 is thus optically distinguishable from the air intake area 5, so that the device can also be operated without an attached blow-out part 25 and the user can identify the blow-out area Air blow-out area 44 can be directed to any part of its body by rotating the housing about the rotation axis 41.

The entire air intake area 5 and the air blow-out area 44 are located in the same radial plane 45 (see Figure 3 ) and are preferably arranged all around on the outer circumference of the housing 42.

Claims (15)

1. Personalised air purification device (1) for blowing out purified air via a blow-out part (25) in the direction of the body of a user, having a blow-out part (25) and a housing (42), which has at least one air intake region (5) for taking air into the housing (42) and at least one air blow-out region (44) for blowing the purified air out from the housing (42), wherein the blow-out part (25) is attached on the air blow-out region (44) of the housing (42) with a releasable attachment (9, 10), characterised in that the housing-side air blow-out region (44) consists of a number of blow-out lamellae (12) arranged radially on the outer circumference of the housing (42) and on which the blow-out part (25) is releasably attached.
2. Personalised air purification device (1) according to claim 1, characterised in that the blow-out part (25) is attached with a plug attachment (9), wherein the blow-out part (25) is mountable onto the blow-out lamellae (12) by means of plug pins (31, 32).
3. Personalised air purification device (1) according to claim 1, characterised in that the blow-out part (25) is attached with a magnethaft attachment or clamping attachment.
4. Personalised air purification device (1) according to one of claims 1 to 3, characterised in that the blow-out part (25) is designed as a sealed, half-open part and consists of two side walls (14) arranged at a distance from one another and joined in sealed manner by a cover wall (16) and in that the blow-out region is formed by a nozzle provided with blow-out lamellae (8).
5. Personalised air purification device (1) according to one of claims 1 to 4, characterised in that the blow-out part (25) has upper and lower stop tongues (11) which are positioned positively on the upper side of the blow-out lamellae (12).
6. Personalised air purification device (1) according to claim 4 or 5, characterised in that the blow-out lamellae (8) in the nozzle are designed as multicellular honeycomb and/or covered with an open-cell piece of foam and/or coated with a catalyst.
7. Personalised air purification device (1) according to one of claims 4 to 6, characterised in that the blow-out lamellae (8) on the blow-out side are arranged in a receiving frame (34) which is suitable for receiving a catalyst and/or blow-out filter.
8. Personalised air purification device (1) according to one of claims 2 and 4 to 6, characterised in that an orientation light (33), which optically displays the mounting site of the plug attachment (9, 10) in the region of the housing-side blow-out lamellae (12), is arranged in the housing-side air blow-out region (44).
9. Personalised air purification device (1) according to one of claims 1 to 8, characterised in that a display light bar (38), which displays the quantity of air blown out corresponding to the length of the display light bar (38), is arranged in the housing-side air blow-out region (44).
10. Personalised air purification device (1) according to claim 9, characterised in that the blow-out part (25) is at least partly transparent and/or translucent and in that the display light bar (38) is visible through the blow-out part (25).
11. Personalised air purification device (1) according to one of claims 1 to 10, characterised in that the housing (42) of the air purification device (1) is designed approximately in the form of a round or oval or polygonal disc and in that the air intake region (5) and the air blow-out region (44) are arranged in the same radial plane (45) on the circumference of the housing (42).
12. Personalised air purification device (1) according to one of claims 1 to 11, characterised in that the air intake region (5) and/or the air blow-out region (44), seen from the rotational axis (41) of the housing (42), are arranged on the radially outer edge of the housing (42) in the region of an annular groove (40) running around the outer circumference.
13. Personalised air purification device (1) according to one of claims 1 to 12, characterised in that the housing (42) is mounted with one side surface centrally on a stand (26).
14. Personalised air purification device (1) according to one of claims 1 to 13, characterised in that at least one switch surface (39) is arranged in the region of at least one housing dish (20), on the actuation of which the quantity and/or rate of the air blown out through the blow-out part (25) is controllable.
15. Personalised air purification device (1) according to claim 12, characterised in that on actuation of the switch surface (39), the optical display in the form of the display light bar (38) is also changed and the switch surface (39) is designed as a capacitively switching actuation element.

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