EP3427613B1 - Device for supplying respiratory air to a respiratory air area - Google Patents

Device for supplying respiratory air to a respiratory air area Download PDF

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Publication number
EP3427613B1
EP3427613B1 EP17001202.5A EP17001202A EP3427613B1 EP 3427613 B1 EP3427613 B1 EP 3427613B1 EP 17001202 A EP17001202 A EP 17001202A EP 3427613 B1 EP3427613 B1 EP 3427613B1
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EP
European Patent Office
Prior art keywords
outflow
area
air
region
outflow region
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EP17001202.5A
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German (de)
French (fr)
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EP3427613A1 (en
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Ital Mark
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Avea Capital Ltd
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Avea Capital Ltd
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Application filed by Avea Capital Ltd filed Critical Avea Capital Ltd
Priority to EP17001202.5A priority Critical patent/EP3427613B1/en
Priority to CN201711250124.5A priority patent/CN109247751A/en
Priority to US15/828,453 priority patent/US20190014915A1/en
Publication of EP3427613A1 publication Critical patent/EP3427613A1/en
Application granted granted Critical
Publication of EP3427613B1 publication Critical patent/EP3427613B1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C21/00—Attachments for beds, e.g. sheet holders, bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
    • A47C21/04—Devices for ventilating, cooling or heating
    • A47C21/042—Devices for ventilating, cooling or heating for ventilating or cooling
    • A47C21/044—Devices for ventilating, cooling or heating for ventilating or cooling with active means, e.g. by using air blowers or liquid pumps

Definitions

  • the invention relates to a device for supplying breathing air to a breathing air region of the type specified in the preamble of claim 1.
  • a device for supplying breathing air to a cot is known.
  • the device has air outlet openings on all sides of the bed and on the mattress, through which air flows into the interior of the bed.
  • the US 2006/0053554 A1 shows a patient's bed with a device for supplying breathing air.
  • the breathing air is fed into the area of the patient's head via nozzles arranged opposite one another on the long sides of the bed.
  • the US 2004/0242148 A1 shows a system for supplying breathing air to a bed. Breathing air can be supplied from different directions.
  • the invention is based on the object of creating a device for supplying breathing air to a breathing air area which has a simple structure and whose operation is pleasant for a user.
  • the breathing air exiting the outflow area can be braked in a simple manner if a planar limiting device is arranged opposite each outflow area.
  • the delimitation device brakes the air flow emerging from the outflow area, so that a zone with purified air is formed between the outflow area and the delimitation device and flows at a low flow velocity. This zone with low flow velocity forms the breathing air area.
  • the outflow speed of the breathing air from the outflow area is advantageously greater than the flow speed of the air in the breathing air area and is in particular at least twice the flow speed of the air in the breathing air area. Because the outflow speed from the outflow area is significantly greater than the flow speed of the air in the breathing air area, the outflow speed can be selected to be comparatively high without creating an unpleasant feeling of draft for the user. As a result, a high volume flow of air into the breathing air area can also be achieved via one or more outflow areas with a comparatively small area, so that a sufficient amount of purified breathing air is supplied to the breathing air area.
  • the breathing air area is advantageously open to the environment. However, air from the breathing air area flows out of the breathing air area into the environment, thereby displacing ambient air.
  • no structural facilities are provided that separate the breathing air area from the environment. This ensures that the user is not impaired by the device for supplying breathing air. Because a defined breathing air area is formed between the outflow area and the limiting device, the amount of air to be cleaned can be kept comparatively small. This means that the air you breathe is effectively cleaned using simple means. Because of the comparatively small amount of air to be cleaned, the user is already under Purified breathing air is available for a very short operating time.
  • the flow velocity that occurs in the breathing air area when the device is operated in still ambient air due to the breathing air flowing out through the at least one outflow area is less than 0.1 m / s.
  • the flow velocity in the breathing air range is advantageously 0.05 m / s to 0.1 m / s. This prevents the user from feeling drafts and excessively drying out the mucous membranes.
  • the outflow speed of the breathing air from the outflow area is advantageously at least 0.2 m / s. This ensures a sufficiently large volume flow into the breathing air area. A penetration of unpurified ambient air into the breathing air area can be avoided in a simple manner via the large amount of breathing air flowing out of the breathing air area.
  • the outflow speed is 0.2 m / s to 2.5 m / s.
  • the specified flow rates relate to a room temperature of 18 ° C to 23 ° C and a relative humidity of 30% to 65%.
  • the outflow area and the delimitation device are arranged parallel to one another.
  • the limiting device is advantageously arranged perpendicular to the outflow device from the outflow area, so that the breathing air exiting the outflow area is braked by the limiting device and a lateral outflow of the breathing air is largely avoided.
  • the outflow area and the delimitation device are advantageously designed mirror-symmetrically to a mirror plane that divides the breathing air area and runs transversely to the outflow direction.
  • the delimitation device is formed by a second flat outflow area.
  • the breathing air flow from the first outflow area and the breathing air flow out of the second outflow area advantageously flow approximately parallel to one another and meet each other frontally, which results in an optimal deceleration of the air flows.
  • the area of the first outflow area and the area of the second outflow area are preferably the same.
  • the two outflow areas are preferably designed to be congruent with one another.
  • the outflow areas are completely congruent one above the other in a viewing direction that is parallel to the connecting line of the geometric centers of the two outflow areas.
  • each outflow area is assigned an opposing, congruent, second outflow area.
  • each air flow flowing into the breathing air area is slowed down by an opposing air flow. Due to the symmetrical arrangement, laterally flowing air currents, which could generate higher flow speeds, are largely avoided.
  • the area of the outflow area can be selected to be comparatively small.
  • the area of the outflow area is preferably matched to the distance between the outflow area and the delimitation device.
  • the ratio of the distance measured in centimeters between the outflow area and the limiting device squared to the area of the outflow area measured in square centimeters is from about 5 to about 25.
  • the distance squared divided by the area is accordingly about 5 to about 25. It has been shown that a ratio of about 15 to about 25 is advantageous, particularly with a small distance between the outflow areas, as is the case with portable devices for supplying breathing air to the nose and mouth area of a user.
  • a distance squared to area ratio of about 15 to about 25 is particularly good for one A distance of about 5 cm to about 20 cm, in particular about 10 cm to about 15 cm, is provided. If the outflow areas are at a great distance from one another, as is the case, for example, with devices for supplying breathing air to a bed, a ratio of 5 to 15, preferably 5 to 10, is particularly advantageous. A ratio in this range is provided in particular for a distance of approximately 50 cm to 240 cm.
  • At least one outflow area is advantageously designed to be so large that at least the front of the head of a user, preferably the entire head of the user, is located completely in the breathing air area. It is provided that at least one outflow area, in particular all outflow areas, have an area of at least 400 cm 2 each.
  • the area of the outflow areas is advantageously designed in such a way that essentially only the head of one or more users is in the breathing air area.
  • the further body of the user is advantageously arranged outside the breathing air area, so that the outflow areas must be selected to be comparatively small.
  • the outflow speed is advantageously adapted to the distance between the outflow area and the limiting device.
  • the ratio of the distance measured in cm between the outflow area and the limiting device and the outflow velocity measured in cm / s is advantageously at least 1.0.
  • a simple design results if at least one outflow area, in particular all outflow areas, are flat. As a result, a comparatively homogeneous braking of the breathing air flowing out of the outflow area can be achieved.
  • the outflow areas are designed so that the smallest dimension of at least one outflow area, in particular each Outflow area is at least 20 cm, in particular at least 25 cm.
  • the outflow area is neither less than 20 cm in height nor in width, a sufficiently large breathing air area can be generated and turbulence and mixing with the surrounding, unpurified air can be largely avoided, at least in the middle of the breathing air area, so that it is ensured that a user only inhales purified air.
  • This is provided in particular for devices for supplying breathing air to a bed of a user.
  • the smallest dimension of the outflow area is smaller than 20 cm.
  • the area of the device located upstream of the outflow area is advantageously designed to form a laminar flow in the outflow area.
  • several ribs can be arranged in the area upstream of the outflow area.
  • the ribs advantageously divide the outflow area into several elongated air outlet openings.
  • the ribs are preferably arranged transversely to the flow direction in the channel leading to the outflow area. The length of the ribs increases with increasing distance, measured in the direction of flow, from the air source, in particular a fan.
  • a plurality of air outlet openings that are adjacent to one another can also be provided, which are supplied with breathing air via individual channels.
  • the individual channels can be formed, for example, by pipes or by a grid.
  • a knitted spacer fabric is arranged on the outflow area, which is in particular covered by a fabric.
  • the knitted spacer fabric creates a constant pressure upstream of the outflow area, which leads to a laminar outflow from the outflow area.
  • At least one outflow area advantageously has a multiplicity of air outlet openings. At least 4, in particular at least 16, air outlet openings are preferably provided per square centimeter. In a preferred embodiment, the air outlet openings are formed on a fabric.
  • Fig. 1 shows a first exemplary embodiment of a device 1 for supplying breathing air to a breathing air area 12.
  • breathing air area 12 is provided above a bed 9.
  • a person 10 is shown schematically.
  • the breathing air area 12 completely surrounds the head 11 of the person 10.
  • the device 1 supplies breathing air into the breathing air region 12.
  • the supply of breathing air takes place in such a way that in the breathing air area 12 there is an area with a reduced Forms flow velocity. This prevents the operator's skin surface from cooling down, the operator feeling an uncomfortable draft of air or catching a cold.
  • the device 1 has two outflow areas 7 and 8, to which purified breathing air is supplied.
  • an air cleaning unit 2 is provided, which is placed under the bed 9 in the exemplary embodiment.
  • the air cleaning unit 2 comprises a schematically drawn filter unit 3, a schematically drawn blower unit 4 and a schematically illustrated energy supply unit 5.
  • the energy supply unit 5 can be formed for example by batteries or accumulators. However, it can also be provided that the energy supply unit 5 has a connection cable for connection to an external energy supply.
  • the air cleaning unit 2 has a housing from which two air ducts 6 lead.
  • the air ducts 6 are flat and the horizontally measured width of the air ducts 6 corresponds approximately to the width of the outflow areas 7 and 8.
  • the air ducts 6 can be constructed as ducts with solid walls. In a particularly preferred embodiment, however, the air channels 6 are formed from air-impermeable, flexible material, for example from plastic film, coated fabric or the like.
  • the device 1 has exactly two outflow areas 7 and 8, which are arranged opposite one another.
  • the outflow areas 7 and 8 are arranged on both sides of the head 11 of the person 10. Both outflow areas 7 and 8 are of the same size and are arranged approximately parallel to one another.
  • the angle ⁇ which the two outflow regions 7 and 8 enclose with one another is less than 10 °, in particular less than 5 °.
  • the outflow areas have a spacing d from one another which is advantageously matched to the width of the bed 9.
  • the distance d is advantageously up to 120% of the width of the bed 9. It is particularly advantageous that the distance d corresponds to the width of the mattress of the bed 9.
  • the purified breathing air flows in an outflow direction 14. From the outflow area 8, the purified breathing air flows in an outflow direction 15.
  • the outflow directions 14 and 15 are opposite to each other and advantageously run at an angle of less than 10 ° to each other.
  • the outflow directions 14 and 15 advantageously run parallel to one another.
  • the air currents from the outflow areas 7 and 8 flow towards one another, as is indicated schematically by the arrows 26.
  • the flow velocity from the two outflow areas 7 and 8 is the same in the exemplary embodiment, so that the air flows meet in the middle between the outflow areas 7 and 8. In the area where the air currents meet, the air currents are slowed down and the breathing air area 12 is formed.
  • the flow speed is lower than the outflow speed from the outflow areas 7 and 8.
  • the user's head 11 is completely in the breathing air area 12 arranged.
  • the outflow areas 7 and 8 are designed symmetrically to a plane of symmetry 16.
  • the plane of symmetry 16 runs centrally between the outflow regions 7 and 8 through the breathing air region 12.
  • the plane of symmetry 16 forms in FIG Fig. 1
  • the side view shown is the bisector of the angle ⁇ between the outflow areas 7 and 8.
  • the plane of symmetry is approximately perpendicular to the outflow directions 14 and 15.
  • the breathing air area 12 is open on all sides in the exemplary embodiment.
  • the breathing air area 12 is delimited at the bottom by the bed 9.
  • the breathing air region 12 is preferably open in at least two spatial directions which run perpendicular to the outflow directions 14 and 15.
  • the breathing air area 12 is open towards the top and towards the front and rear in the illustration.
  • the outflow speed of the breathing air from the outflow areas 7 and 8 is advantageously at least 0.2 m / s. In order to achieve the lowest possible noise development, it is advantageously provided that the outflow speed is 0.2 m / s to 0.3 m / s. In particular, if the distance d between the outflow regions 7 and 8 is greater, the outflow speed can also be significantly greater. The outflow speed is advantageously 0.2 m / s to 2.0 m / s.
  • the specified flow rates relate to room temperatures of 18 ° C to 23 ° C and a relative humidity of 30% to 65%. If the temperature and / or air humidity differ, the flow velocities are advantageously adapted.
  • the ratio of the square of the distance d to the area of the outflow regions 7 or 8 is advantageously about 5 to about 25, preferably from about 5 to about 15, preferably from about 5 to about 10.
  • Fig. 2 shows an air duct 6 and the first outflow area 7 schematically in section.
  • the air duct 6 is delimited by a delimitation wall 13.
  • the boundary wall 13 can be formed by a dimensionally stable material, for example a plastic housing.
  • the boundary wall 13 can, however, also be formed by air-impermeable, in particular coated fabric, film or the like.
  • the air duct 6 has a width e measured perpendicular to the direction of flow.
  • the width e is significantly smaller than a height c of the outflow area 7. In the exemplary embodiment, the width e is less than half the height c.
  • the outflow area 7 is covered by tissue 17.
  • tissue 17 In the fabric 17 are a plurality of in Fig. 2 through openings 18, shown schematically, each opening into the environment with an air outlet opening 19. Via the passage openings 18, purified breathing air exits through the air outlet openings 19 in the outflow direction 14 into the environment.
  • the diameter of the individual air outlet openings 19 is advantageously less than 0.5 mm.
  • Each outflow area 7, 8 preferably has at least 10,000 air outlet openings 19.
  • the air outlet openings 19 can also be formed by individual openings, for example openings in a perforated film or the like.
  • a spacer fabric 20 is arranged in the air duct 6, through which the breathing air flows evenly. As a result, the entire area of the outflow area 7 is supplied comparatively evenly with purified breathing air.
  • Fig. 3 shows an embodiment for a spacer fabric 20 in detail.
  • the spacer fabric 20 On the side facing away from the first outflow area 7, the spacer fabric 20 has air-impermeable material 21.
  • the fabric 17 On the outflow area 7, the fabric 17 is provided as an air-permeable material. Alternatively, perforated plastic film or the like can also be provided.
  • the spacer fabric 20 has a first side 22 which faces the outflow region 7 and a second side 23 which faces the air-impermeable material 21.
  • the spacer fabric 20 can be the distance between the air-impermeable material 21 and the fabric 17 ( Fig. 2 ) or be arranged at a short distance from it.
  • Transverse threads 24 of the spacer fabric 20 extend between the first side 22 and the second side 23.
  • the spacer fabric 20 is preferably a knitted spacer fabric.
  • the material and thread thickness of the spacer fabric 20 are advantageously selected so that the spacer fabric 20 is largely dimensionally stable and ensures a distance between the two longitudinal sides of the air duct 6 with the usual forces acting on the air duct.
  • the volume flow through the outflow areas 7 and 8 is advantageously a total of 0.01 m 3 / s to 0.2 m 3 / s.
  • a cleaning efficiency of at least 95%, in particular up to 98% of the particles is advantageously achieved.
  • Fig. 4 shows an embodiment of a device 1 for supplying breathing air, in which the two outflow areas 7 and 8 are arranged at a distance d of slightly more than 2 m from one another.
  • the outflow areas 7 and 8 are arranged approximately parallel to one another, that is to say they form an angle of less than 10 ° with one another.
  • the outflow areas 7 and 8 each have an area A which is advantageously at least 400 cm 2 .
  • the ratio of the distance d squared to the area A i.e.
  • Each outflow area 7, 8 has a width b as well as a height c.
  • the height b and the height c are perpendicular to each other and perpendicular to that in Fig. 4 not shown, in Fig. 2 shown width e measured.
  • the height c is smaller than the width b.
  • the width e ( Fig. 2 ) is significantly smaller than the height c and the width b.
  • the outflow areas 7 and 8 have an approximately rectangular shape in the exemplary embodiment.
  • the height c adjusts in the embodiment Fig. 4 represents the smallest extension of the two-dimensional outflow areas 7, 8.
  • the height c is advantageously at least 20 cm, in particular at least 25 cm. It can thereby be ensured that the breathing air area 12 forming between the outflow areas 7 and 8 is sufficiently large so that the head of one user or the heads of several users are arranged completely in the breathing air area 12.
  • the breathing air areas 7 and 8 are arranged approximately vertically and on both sides of the bed 9 at the level of the head of a user.
  • the width b is advantageously less than 50 cm, in particular less than 40 cm. The upper body and the legs of a user are thereby largely or completely outside the breathing air region 12.
  • Fig. 5 shows a further embodiment which has a third outflow area 27 in addition to the outflow areas 7 and 8 arranged opposite one another.
  • the third outflow area 27 is arranged opposite a boundary surface 28 and forms an angle of less than 10 ° with it.
  • the outflow area 27 and the delimiting surface 28 are preferably parallel to one another.
  • the outflow areas 7 and 8 are arranged and designed symmetrically to a plane of symmetry which intersects the outflow area 27 and the boundary surface 28 in the middle.
  • the outflow area 27 is also symmetrical to this Plane of symmetry arranged and formed.
  • the boundary surface 28 can for example be the top of a bed over which the device 1 is arranged.
  • a breathing air area 12 is formed between the outflow areas 7 and 8 and is shown in FIG Fig. 5 is shown schematically.
  • Breathing air flows out of the outflow area 27 in a flow direction 29 which, in the exemplary embodiment, runs perpendicular to the flow directions 14 and 15.
  • the outflow direction 29 is preferably directed perpendicularly to the boundary surface 29 or forms an angle of at least 80 ° with it.
  • the air flowing out of the third outflow area 27 and the boundary surface 28 ensure that air from the breathing air area 12 does not follow in the illustration Fig. 5 can escape up or down.
  • the fresh air flowing out displaces the polluted ambient air, so that a high cleaning efficiency is achieved.
  • Fig. 6 shows a further embodiment of a device 1 for supplying breathing air.
  • device 1 off Fig. 6 it is a mobile device that is carried by a user. This means that the user is constantly supplied with purified fresh air while he is moving.
  • the two outflow areas 7 and 8 are arranged on both sides of the face of the person 10 in such a way that the area of the nose and mouth of the person 10 is arranged in the breathing air area 12 that forms between the outflow areas 7 and 8.
  • the outflow areas 7, 8 have a spacing d from one another which is advantageously 5 cm to 20 cm, in particular 10 cm to 15 cm.
  • the ratio of the distance d squared to the area A of an outflow area 7 or 8 is advantageously about 5 to about 25, preferably from about 15 to about 25.
  • an area A is provided for each outflow area 7, 8, which is about 5 cm 2 so that at a distance d of 10 cm a ratio d 2 / A of 20 results.
  • the area A ( Fig. 4 ) at least one, in particular all of the outflow areas 7, 8, 27 is advantageously at least 400 cm 2 , particularly for stationary applications such as on a bed 9.
  • the ratio of the distance d, measured in cm, between the outflow area 7, 8, 27 and the delimitation device squared to the area A of the outflow area 7, 8, 27 measured in cm 2 is advantageously from about 5 to about 25.
  • one or more shielding air flows are formed which separate the breathing air area 12 from the surroundings.
  • the shielding air flows are advantageously not formed by flat outflow areas, but rather by narrow, elongated outflow openings, so that a high flow speed of the shielding air flow is achieved.
  • Fig. 7 shows an exemplary embodiment of an outflow area 7 which is formed at the end of an air duct 6.
  • the outflow area 7 is flat and has several elongated air outlet openings 19.
  • the opposite, in Fig. 7 The outflow area 8, not shown, is advantageously of identical design.
  • the air outlet openings 19 extend parallel to the flow direction 31 in the air duct 6 over the entire height c of the outflow area 7.
  • the air outlet openings 19 are elongated, the height of the air outlet openings 19 being more than twice their width.
  • a total of ten individual air outlet openings 19 are provided, which are separated from one another by ribs 30. A different number of air outlet openings 19 can also be advantageous.
  • the number and the spacing of the ribs 30, between which the air outlet openings 19 are formed, are advantageously selected such that a laminar flow is established at the outflow area 7, which flows out of the outflow area 7 in the outflow direction 14.
  • the ribs 30 have a width f, measured in the outflow direction 14, which is smaller than the width e of the air duct 6.
  • the ribs 30 thus do not extend as far as a rear side of the air duct 6 arranged opposite the outflow region 7.
  • the outflow area 7 is formed by a plurality of individual air outlet openings 19, each of which has a circular cross section.
  • the air outlet openings 19 are formed by the end faces of tubes 32.
  • the tubes 32 are bent approximately L-shaped in the exemplary embodiment and direct the breathing air from a flow direction 31 in which the breathing air flows through the air duct 6 ( Fig. 7 ) flows around in the outflow direction 14 oriented perpendicular thereto.
  • 36 air outlet openings 19 are provided.
  • Advantageous numbers of air outlet openings 19 can be from 10 to 100 air outlet openings 19. It can be provided that the tubes 32 are arranged in an air duct 6. In an alternative advantageous embodiment, the tubes 32 can be connected to an air duct 6 and continue this up to the outflow area 7.
  • Fig. 9 shows a further exemplary embodiment of the design of the outflow area 7.
  • the outflow area 7 is divided into a total of five air outlet openings 19, the largest extent of which is perpendicular to the flow direction 31 in the air duct 6.
  • the outflow area 7 is divided into air outlet openings 19 by ribs 30, 30 ', 30 ", 30"'.
  • five air outlet openings 19 are provided.
  • a different number of air outlet openings 19 can also be advantageous.
  • the rib 30 ′ ′′ located at the front in relation to the flow direction 31 has a width f ′′ which is less than half the width e of the air duct 6.
  • the rib 30 ′′ which follows in the flow direction has a width f ′ which is greater than the width f ′′.
  • the rib 30 ′′ extends over approximately half the width of the interior of the air duct 6.
  • the ribs 30 ′ ′′ and 30 ′′ have a distance g from one another which is significantly greater than the difference between the widths f ′ and f ′′.
  • the distance g is advantageously twice to 10 times the difference between the distances f 'and f ".
  • the distance g between ribs 30, 30 ', 30 ", 30'" following one another in flow direction 31 is constant.
  • the difference in widths f, f, f ', f "between in flow direction is also constant 31 successive ribs 30, 30 ', 30 ", 30'” equal.
  • the ratio between the difference in the widths f, f, f ', f "and the distance g is the same for all successive ribs 30, 30', 30", 30 "'.
  • the ribs 30, 30 ′, 30 ′′, 30 ′ ′′ protrude differently into the air duct 6, part of the air flow is branched off from the air duct 6 and directed to an air outlet opening 19.
  • the ribs 30, 30 ′, 30 ′′, 30 ′ ′′ are inclined by less than 90 ° with respect to the flow direction 31, and in a preferred configuration are slightly bent so that the air flow is gently deflected.
  • the design of the ribs 30 is such that the breathing air flows out of the outflow area 7 in the outflow direction 14 as a laminar flow.

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Description

Die Erfindung betrifft eine Vorrichtung zur Zufuhr von Atemluft zu einem Atemluftbereich der im Oberbegriff des Anspruchs 1 angegebenen Gattung.The invention relates to a device for supplying breathing air to a breathing air region of the type specified in the preamble of claim 1.

Aus der WO 96/39905 A ist eine Vorrichtung zur Zufuhr von Atemluft zu einem Kinderbett bekannt. Die Vorrichtung besitzt an allen Bettseiten sowie an der Matratze Luftaustrittsöffnungen, über die Luft in den Innenbereich des Betts strömt.From the WO 96/39905 A a device for supplying breathing air to a cot is known. The device has air outlet openings on all sides of the bed and on the mattress, through which air flows into the interior of the bed.

Die US 2006/0053554 A1 zeigt ein Patientenbett mit einer Vorrichtung zur Zufuhr von Atemluft. Die Atemluft wird über an den Längsseiten des Betts angeordnete, einander gegenüberliegende Düsen in den Bereich des Kopfs des Patienten zugeführt.The US 2006/0053554 A1 shows a patient's bed with a device for supplying breathing air. The breathing air is fed into the area of the patient's head via nozzles arranged opposite one another on the long sides of the bed.

Die US 2004/0242148 A1 zeigt ein System zur Zufuhr von Atemluft zu einem Bett. Die Zufuhr von Atemluft kann aus unterschiedlichsten Richtungen erfolgen.The US 2004/0242148 A1 shows a system for supplying breathing air to a bed. Breathing air can be supplied from different directions.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Zufuhr von Atemluft zu einem Atemluftbereich zu schaffen, die einen einfachen Aufbau besitzt und deren Betrieb für einen Benutzer angenehm ist.The invention is based on the object of creating a device for supplying breathing air to a breathing air area which has a simple structure and whose operation is pleasant for a user.

Es hat sich gezeigt, dass es für den Nutzer angenehm ist, wenn die Strömungsgeschwindigkeit der Luft in dem Atemluftbereich vergleichsweise gering ist. Dadurch wird vermieden, dass bei dem Benutzer der Eindruck von Zugluft entsteht. Gleichzeitig ist bei Zufuhr einer vergleichsweise hohen Menge an Atemluft in dem Atemluftbereich wünschenswert, um sicherzustellen, dass ungereinigte Luft nicht in den Atemluftbereich gelangen kann. Um große Mengen von Atemluft mit geringer Strömungsgeschwindigkeit zuzuführen, werden jedoch Ausströmbereiche mit sehr großer Fläche benötigt, was derartige Vorrichtungen aufwändig macht.It has been shown that it is pleasant for the user if the flow speed of the air in the breathing air area is comparatively low. This prevents the user from having the impression of drafts. At the same time, when a comparatively large amount of breathing air is supplied to the breathing air area, it is desirable to ensure that uncleaned air does not get into the breathing air area can arrive. In order to supply large amounts of breathing air at a low flow rate, however, outflow areas with a very large area are required, which makes such devices expensive.

Es hat sich nun gezeigt, dass die aus dem Ausströmbereich austretende Atemluft auf einfache Weise abgebremst werden kann, wenn gegenüberliegend zu jedem Ausströmbereich eine flächige Begrenzungseinrichtung angeordnet wird. Die Begrenzungseinrichtung bremst den aus dem Ausströmbereich austretenden Luftstrom ab, so dass zwischen dem Ausströmbereich und der Begrenzungseinrichtung eine Zone mit gereinigter Luft gebildet wird, die mit geringer Strömungsgeschwindigkeit strömt. Diese Zone mit geringer Strömungsgeschwindigkeit bildet den Atemluftbereich.It has now been shown that the breathing air exiting the outflow area can be braked in a simple manner if a planar limiting device is arranged opposite each outflow area. The delimitation device brakes the air flow emerging from the outflow area, so that a zone with purified air is formed between the outflow area and the delimitation device and flows at a low flow velocity. This zone with low flow velocity forms the breathing air area.

Die Ausströmgeschwindigkeit der Atemluft aus dem Ausströmbereich ist vorteilhaft größer als die Strömungsgeschwindigkeit der Luft in dem Atemluftbereich und beträgt insbesondere mindestens das Doppelte der Strömungsgeschwindigkeit der Luft in dem Atemluftbereich. Dadurch, dass die Ausströmgeschwindigkeit aus dem Ausströmbereich deutlich größer als die Strömungsgeschwindigkeit der Luft in dem Atemluftbereich ist, kann die Ausströmgeschwindigkeit vergleichsweise groß gewählt werden, ohne ein unangenehmes Gefühl von Zugluft beim Benutzer entstehen zu lassen. Dadurch kann auch über ein oder mehrere Ausströmbereiche mit vergleichsweise geringer Fläche ein hoher Luftvolumenstrom in den Atemluftbereich erreicht werden, so dass eine ausreichende Menge von gereinigter Atemluft zu dem Atemluftbereich zugeführt wird. Der Atemluftbereich ist vorteilhaft zur Umgebung hin offen. Luft aus dem Atemluftbereich strömt jedoch aus dem Atemluftbereich in die Umgebung ab und verdrängt dabei Umgebungsluft. Dadurch wird verhindert, dass ungereinigte Umgebungsluft in den Atemluftbereich eindringen kann. In bevorzugter Ausführung sind keine baulichen Einrichtungen vorgesehen, die den Atemluftbereich von der Umgebung trennen. Dadurch wird gewährleistet, dass der Benutzer durch die Vorrichtung zur Zufuhr von Atemluft nicht beeinträchtigt wird. Dadurch, dass ein definierter Atemluftbereich zwischen Ausströmbereich und Begrenzungseinrichtung gebildet wird, kann die Menge der zu reinigenden Luft vergleichsweise gering gehalten werden. Dadurch wird eine effektive Reinigung der Atemluft mit einfachen Mitteln erreicht. Aufgrund der vergleichsweise geringen zu reinigenden Luftmenge steht für den Benutzer bereits nach sehr kurzer Betriebszeit gereinigte Atemluft zur Verfügung. Im Gegensatz zu Luftreinigern, die beispielsweise die gesamte in einem Zimmer vorhandene Luft reinigen, wird keine lange Vorlaufzeit benötigt, um die gesamte in dem Zimmer vorhandene Luft zu reinigen, sondern es muss lediglich die in dem Atemluftbereich zuzuführende Menge an Atemluft gereinigt werden.The outflow speed of the breathing air from the outflow area is advantageously greater than the flow speed of the air in the breathing air area and is in particular at least twice the flow speed of the air in the breathing air area. Because the outflow speed from the outflow area is significantly greater than the flow speed of the air in the breathing air area, the outflow speed can be selected to be comparatively high without creating an unpleasant feeling of draft for the user. As a result, a high volume flow of air into the breathing air area can also be achieved via one or more outflow areas with a comparatively small area, so that a sufficient amount of purified breathing air is supplied to the breathing air area. The breathing air area is advantageously open to the environment. However, air from the breathing air area flows out of the breathing air area into the environment, thereby displacing ambient air. This prevents uncleaned ambient air from entering the breathing air area. In a preferred embodiment, no structural facilities are provided that separate the breathing air area from the environment. This ensures that the user is not impaired by the device for supplying breathing air. Because a defined breathing air area is formed between the outflow area and the limiting device, the amount of air to be cleaned can be kept comparatively small. This means that the air you breathe is effectively cleaned using simple means. Because of the comparatively small amount of air to be cleaned, the user is already under Purified breathing air is available for a very short operating time. In contrast to air purifiers, which, for example, purify all of the air present in a room, no long lead time is required in order to purify all of the air present in the room, but only the amount of breathable air to be supplied in the breathing air area has to be purified.

Vorteilhaft beträgt die Strömungsgeschwindigkeit, die sich beim Betrieb der Vorrichtung in ruhender Umgebungsluft aufgrund der durch den mindestens einen Ausströmbereich ausströmendem Atemluft in dem Atemluftbereich einstellt, weniger als 0,1 m/s. Vorteilhaft beträgt die Strömungsgeschwindigkeit in dem Atemluftbereich 0,05 m/s bis 0,1 m/s. Dadurch wird vermieden, dass beim Benutzer der Eindruck von Zugluft entsteht und die Schleimhäute übermäßig austrocknen. Die Ausströmgeschwindigkeit der Atemluft aus dem Ausströmbereich beträgt vorteilhaft mindestens 0,2 m/s. Dadurch wird ein ausreichend großer Volumenstrom in den Atemluftbereich sichergestellt. Über die große Menge an aus dem Atemluftbereich ausströmender Atemluft kann ein Eindringen von ungereinigter Umgebungsluft in den Atemluftbereich auf einfache Weise vermieden werden. In bevorzugter Gestaltung beträgt die Ausströmgeschwindigkeit 0,2 m/s bis 2,5 m/s. Die angegebenen Strömungsgeschwindigkeiten beziehen sich dabei auf eine Raumtemperatur von 18° C bis 23° C und eine relative Luftfeuchte von 30% bis 65%.Advantageously, the flow velocity that occurs in the breathing air area when the device is operated in still ambient air due to the breathing air flowing out through the at least one outflow area is less than 0.1 m / s. The flow velocity in the breathing air range is advantageously 0.05 m / s to 0.1 m / s. This prevents the user from feeling drafts and excessively drying out the mucous membranes. The outflow speed of the breathing air from the outflow area is advantageously at least 0.2 m / s. This ensures a sufficiently large volume flow into the breathing air area. A penetration of unpurified ambient air into the breathing air area can be avoided in a simple manner via the large amount of breathing air flowing out of the breathing air area. In a preferred embodiment, the outflow speed is 0.2 m / s to 2.5 m / s. The specified flow rates relate to a room temperature of 18 ° C to 23 ° C and a relative humidity of 30% to 65%.

In vorteilhafter Gestaltung sind der Ausströmbereich und die Begrenzungseinrichtung parallel zueinander angeordnet. Die Begrenzungseinrichtung ist vorteilhaft senkrecht zur Ausströmeinrichtung aus dem Ausströmbereich angeordnet, so dass die aus dem Ausströmbereich austretende Atemluft von der Begrenzungseinrichtung gebremst wird und ein seitliches Abströmen der Atemluft weitgehend vermieden wird.In an advantageous embodiment, the outflow area and the delimitation device are arranged parallel to one another. The limiting device is advantageously arranged perpendicular to the outflow device from the outflow area, so that the breathing air exiting the outflow area is braked by the limiting device and a lateral outflow of the breathing air is largely avoided.

Vorteilhaft sind der Ausströmbereich und die Begrenzungseinrichtung spiegelsymmetrisch zu einer den Atemluftbereich teilenden, quer zur Ausströmrichtung verlaufenden Spiegelebene ausgebildet.The outflow area and the delimitation device are advantageously designed mirror-symmetrically to a mirror plane that divides the breathing air area and runs transversely to the outflow direction.

In vorteilhafter Gestaltung ist die Begrenzungseinrichtung durch einen zweiten flächigen Ausströmbereich gebildet. Der Atemluftstrom aus dem ersten Ausströmbereich und der Atemluftstrom aus dem zweiten Ausströmbereich strömen vorteilhaft etwa parallel zueinander und treffen frontal aufeinander, wodurch sich eine optimale Abbremsung der Luftströme ergibt. Bevorzugt sind die Fläche des ersten Ausströmbereichs und die Fläche des zweiten Ausströmbereichs gleich. Die beiden Ausströmbereiche sind bevorzugt deckungsgleich zueinander ausgebildet. In besonders vorteilhafter Gestaltung liegen die Ausströmbereiche in einer Blickrichtung, die parallel zur Verbindungslinie der geometrischen Mitten der beiden Ausströmbereiche liegt, vollständig deckungsgleich übereinander. In besonders bevorzugter Gestaltung ist jedem Ausströmbereich ein gegenüberliegender, deckungsgleich ausgebildeter zweiter Ausströmbereich zugeordnet. Dadurch, dass jedem Ausströmbereich ein gegenüberliegender, deckungsgleich ausgebildeter zweiter Ausströmbereich zugeordnet ist, wird jeder in den Atemluftbereich einströmender Luftstrom von einem entgegengerichteten Luftstrom gebremst. Aufgrund der symmetrischen Anordnung werden seitlich abströmende Luftströmungen, die größere Strömungsgeschwindigkeiten erzeugen könnten, weitgehend vermieden.In an advantageous embodiment, the delimitation device is formed by a second flat outflow area. The breathing air flow from the first outflow area and the breathing air flow out of the second outflow area advantageously flow approximately parallel to one another and meet each other frontally, which results in an optimal deceleration of the air flows. The area of the first outflow area and the area of the second outflow area are preferably the same. The two outflow areas are preferably designed to be congruent with one another. In a particularly advantageous design, the outflow areas are completely congruent one above the other in a viewing direction that is parallel to the connecting line of the geometric centers of the two outflow areas. In a particularly preferred embodiment, each outflow area is assigned an opposing, congruent, second outflow area. Because an opposing, congruently designed second outflow area is assigned to each outflow area, each air flow flowing into the breathing air area is slowed down by an opposing air flow. Due to the symmetrical arrangement, laterally flowing air currents, which could generate higher flow speeds, are largely avoided.

Aufgrund der Anordnung einer Begrenzungseinrichtung gegenüberliegend zu jedem Ausströmbereich kann die Fläche des Ausströmbereichs vergleichsweise klein gewählt werden. Bevorzugt ist die Fläche des Ausströmbereichs auf den Abstand zwischen Ausströmbereich und Begrenzungseinrichtung abgestimmt. Das Verhältnis des in Zentimetern gemessenen Abstands zwischen dem Ausströmbereich und der Begrenzungseinrichtung im Quadrat zur in Quadratzentimetern gemessenen Fläche des Ausströmbereichs beträgt von etwa 5 bis etwa 25. Der Abstand im Quadrat geteilt durch die Fläche beträgt demnach etwa 5 bis etwa 25. Es hat sich gezeigt, dass insbesondere bei kleinem Abstand der Ausströmbereiche zueinander, wie er sich beispielsweise bei tragbaren Vorrichtungen zur Zufuhr von Atemluft zum Nase-Mund-Bereich eines Benutzers ergibt, ein Verhältnis von etwa 15 bis etwa 25 vorteilhaft ist. Ein Verhältnis des Abstands im Quadrat zur Fläche von etwa 15 bis etwa 25 ist insbesondere für einen Abstand von etwa 5 cm bis etwa 20 cm, insbesondere von etwa 10 cm bis etwa 15 cm vorgesehen. Bei großem Abstand der Ausströmbereiche zueinander, wie er sich beispielsweise bei Vorrichtungen zur Zufuhr von Atemluft an einem Bett ergibt, ist insbesondere ein Verhältnis von 5 bis 15, bevorzugt von 5 bis 10 vorteilhaft. Ein Verhältnis in diesem Bereich ist insbesondere für einen Abstand von etwa 50 cm bis 240 cm vorgesehen.Due to the arrangement of a delimitation device opposite each outflow area, the area of the outflow area can be selected to be comparatively small. The area of the outflow area is preferably matched to the distance between the outflow area and the delimitation device. The ratio of the distance measured in centimeters between the outflow area and the limiting device squared to the area of the outflow area measured in square centimeters is from about 5 to about 25. The distance squared divided by the area is accordingly about 5 to about 25. It has been shown that a ratio of about 15 to about 25 is advantageous, particularly with a small distance between the outflow areas, as is the case with portable devices for supplying breathing air to the nose and mouth area of a user. A distance squared to area ratio of about 15 to about 25 is particularly good for one A distance of about 5 cm to about 20 cm, in particular about 10 cm to about 15 cm, is provided. If the outflow areas are at a great distance from one another, as is the case, for example, with devices for supplying breathing air to a bed, a ratio of 5 to 15, preferably 5 to 10, is particularly advantageous. A ratio in this range is provided in particular for a distance of approximately 50 cm to 240 cm.

Vorteilhaft ist mindestens ein Ausströmbereich so groß ausgebildet, dass zumindest die Vorderseite des Kopfs eines Benutzers, bevorzugt der gesamte Kopf des Benutzers sich vollständig im Atemluftbereich befindet. Es ist vorgesehen, dass mindestens ein Ausströmbereich, insbesondere alle Ausströmbereiche eine Fläche von jeweils mindestens 400 cm2 aufweisen. Die Fläche der Ausströmbereiche ist vorteilhaft so ausgelegt, dass sich im Wesentlichen nur der Kopf eines oder mehrerer Benutzer im Atemluftbereich befinden. Der weitere Körper des Benutzers ist vorteilhaft außerhalb des Atemluftbereichs angeordnet, so dass die Ausströmbereiche vergleichsweise klein gewählt werden müssen.At least one outflow area is advantageously designed to be so large that at least the front of the head of a user, preferably the entire head of the user, is located completely in the breathing air area. It is provided that at least one outflow area, in particular all outflow areas, have an area of at least 400 cm 2 each. The area of the outflow areas is advantageously designed in such a way that essentially only the head of one or more users is in the breathing air area. The further body of the user is advantageously arranged outside the breathing air area, so that the outflow areas must be selected to be comparatively small.

Vorteilhaft ist die Ausströmgeschwindigkeit auf den Abstand zwischen dem Ausströmbereich und der Begrenzungseinrichtung angepasst. Das Verhältnis des in cm gemessenen Abstands zwischen dem Ausströmbereich und der Begrenzungseinrichtung und der in cm/s gemessenen Ausströmgeschwindigkeit beträgt vorteilhaft mindestens 1,0.The outflow speed is advantageously adapted to the distance between the outflow area and the limiting device. The ratio of the distance measured in cm between the outflow area and the limiting device and the outflow velocity measured in cm / s is advantageously at least 1.0.

Eine einfache Gestaltung ergibt sich, wenn mindestens ein Ausströmbereich, insbesondere alle Ausströmbereiche eben ausgebildet sind. Dadurch lässt sich ein vergleichsweise homogenes Abbremsen der aus dem Ausströmbereich ausströmenden Atemluft erreichen. Es kann jedoch auch vorteilhaft sein, mindestens einen Ausströmbereich gebogen auszubilden. In bevorzugter Gestaltung sind die Ausströmbereiche so gestaltet, dass die kleinste Abmessung mindestens eines Ausströmbereichs, insbesondere jedes Ausströmbereichs mindestens 20 cm, insbesondere mindestens 25 cm beträgt. Dadurch, dass der Ausströmbereich weder in der Höhe noch in der Breite weniger als 20 cm beträgt, lässt sich ein ausreichend großer Atemluftbereich erzeugen und Verwirbelungen und Vermischungen mit der umgebenden, nicht gereinigten Luft können zumindest in der Mitte des Atemluftbereichs weitgehend vermieden werden, so dass sichergestellt ist, dass ein Benutzer nur gereinigte Atemluft einatmet. Dies ist insbesondere für Vorrichtungen zur Zufuhr von Atemluft an einem Bett eines Benutzers vorgesehen. Für tragbare Vorrichtungen kann auch vorgesehen sein, dass die kleinste Abmessung des Ausströmbereichs kleiner ist als 20 cm.A simple design results if at least one outflow area, in particular all outflow areas, are flat. As a result, a comparatively homogeneous braking of the breathing air flowing out of the outflow area can be achieved. However, it can also be advantageous to design at least one outflow area to be curved. In a preferred embodiment, the outflow areas are designed so that the smallest dimension of at least one outflow area, in particular each Outflow area is at least 20 cm, in particular at least 25 cm. Because the outflow area is neither less than 20 cm in height nor in width, a sufficiently large breathing air area can be generated and turbulence and mixing with the surrounding, unpurified air can be largely avoided, at least in the middle of the breathing air area, so that it is ensured that a user only inhales purified air. This is provided in particular for devices for supplying breathing air to a bed of a user. For portable devices it can also be provided that the smallest dimension of the outflow area is smaller than 20 cm.

Der stromauf des Ausströmbereichs liegende Bereich der Vorrichtung ist vorteilhaft zur Ausbildung einer laminaren Strömung im Ausströmbereich ausgebildet. Hierzu können mehrere Rippen im Bereich stromauf des Ausströmbereichs angeordnet sein. Die Rippen teilen den Ausströmbereich vorteilhaft in mehrere längliche Luftaustrittsöffnungen. Bevorzugt sind die Rippen quer zur Strömungsrichtung in dem zum Ausströmbereich führenden Kanal angeordnet. Die Länge der Rippen vergrößert sich bevorzugt mit steigendem, in Strömungsrichtung gemessenem Abstand von der Luftquelle, insbesondere einem Gebläse.The area of the device located upstream of the outflow area is advantageously designed to form a laminar flow in the outflow area. For this purpose, several ribs can be arranged in the area upstream of the outflow area. The ribs advantageously divide the outflow area into several elongated air outlet openings. The ribs are preferably arranged transversely to the flow direction in the channel leading to the outflow area. The length of the ribs increases with increasing distance, measured in the direction of flow, from the air source, in particular a fan.

In alternativer Gestaltung können auch eine Vielzahl zueinander benachbarter Luftaustrittsöffnungen vorgesehen sein, die über einzelne Kanäle mit Atemluft versorgt sind. Hierdurch kann am Austritt aus dem Ausströmbereich auf einfache Weise eine laminare Strömung erzeugt werden. Die einzelnen Kanäle können beispielsweise durch Rohre oder durch ein Gitter gebildet sein.In an alternative design, a plurality of air outlet openings that are adjacent to one another can also be provided, which are supplied with breathing air via individual channels. In this way, a laminar flow can be generated in a simple manner at the exit from the outflow area. The individual channels can be formed, for example, by pipes or by a grid.

In alternativer Gestaltung ist vorteilhaft vorgesehen, dass am Ausströmbereich ein Abstandsgewirke angeordnet ist, das insbesondere von einem Gewebe abgedeckt ist. Durch das Abstandsgewirke stellt sich stromauf des Ausströmbereichs ein konstanter Druck ein, der zu einem laminaren Ausströmen aus dem Ausströmbereich führt.In an alternative configuration, it is advantageously provided that a knitted spacer fabric is arranged on the outflow area, which is in particular covered by a fabric. The knitted spacer fabric creates a constant pressure upstream of the outflow area, which leads to a laminar outflow from the outflow area.

Vorteilhaft besitzt mindestens ein Ausströmbereich eine Vielzahl von Luftaustrittsöffnungen. Bevorzugt sind mindestens 4, insbesondere mindestens 16 Luftaustrittsöffnungen je Quadratzentimeter vorgesehen. In bevorzugter Gestaltung sind die Luftaustrittsöffnungen an einem Gewebe ausgebildet.At least one outflow area advantageously has a multiplicity of air outlet openings. At least 4, in particular at least 16, air outlet openings are preferably provided per square centimeter. In a preferred embodiment, the air outlet openings are formed on a fabric.

Ausführungsbeispiele der Erfindung werden im Folgenden anhand der Zeichnung erläutert. Es zeigen:

Fig. 1
eine schematische Seitenansicht einer Vorrichtung zur Zufuhr von Atemluft am Bett eines Benutzers,
Fig. 2
einen schematischen Schnitt durch einen Ausströmbereich der Vorrichtung aus Fig. 1,
Fig. 3
eine perspektivische Schnittdarstellung der Atemluftzuführvorrichtung im Ausströmbereich,
Fig. 4 bis Fig. 6
perspektivische Darstellungen von Ausführungsbeispielen für Vorrichtungen zur Zufuhr von Atemluft,
Fig. 7 bis 9
perspektivische Darstellungen von Ausführungsbeispielen der Gestaltung eines Ausströmbereichs einer Vorrichtung zur Zufuhr von Atemluft.
Embodiments of the invention are explained below with reference to the drawing. Show it:
Fig. 1
a schematic side view of a device for supplying breathing air on the bed of a user,
Fig. 2
a schematic section through an outflow area of the device Fig. 1 ,
Fig. 3
a perspective sectional view of the breathing air supply device in the outflow area,
FIGS. 4 to 6
perspective representations of exemplary embodiments for devices for supplying breathing air,
Figures 7 to 9
perspective representations of exemplary embodiments of the design of an outflow area of a device for supplying breathing air.

Fig. 1 zeigt ein erstes Ausführungsbeispiel einer Vorrichtung 1 zur Zufuhr von Atemluft zu einem Atemluftbereich 12. Im Ausführungsbeispiel ist der Atemluftbereich 12 oberhalb eines Betts 9 vorgesehen. Auf dem Bett 9 ist in Fig. 1 schematisch eine Person 10 eingezeichnet. Der Atemluftbereich 12 umgibt den Kopf 11 der Person 10 vollständig. In den Atemluftbereich 12 führt die Vorrichtung 1 Atemluft zu. Die Zufuhr von Atemluft erfolgt dabei derart, dass sich im Atemluftbereich 12 ein Bereich mit verringerter Strömungsgeschwindigkeit bildet. Dadurch wird vermieden, dass die Hautoberfläche des Bedieners abkühlt, der Bediener einen unbehaglichen Luftzug verspürt oder sich erkältet. Fig. 1 shows a first exemplary embodiment of a device 1 for supplying breathing air to a breathing air area 12. In the exemplary embodiment, breathing air area 12 is provided above a bed 9. On bed 9 is in Fig. 1 a person 10 is shown schematically. The breathing air area 12 completely surrounds the head 11 of the person 10. The device 1 supplies breathing air into the breathing air region 12. The supply of breathing air takes place in such a way that in the breathing air area 12 there is an area with a reduced Forms flow velocity. This prevents the operator's skin surface from cooling down, the operator feeling an uncomfortable draft of air or catching a cold.

Die Vorrichtung 1 besitzt zwei Ausströmbereiche 7 und 8, denen gereinigte Atemluft zugeführt wird. Zum Reinigen und Fördern der Atemluft ist eine Luftreinigungseinheit 2 vorgesehen, die im Ausführungsbeispiel unter dem Bett 9 platziert ist. Die Luftreinigungseinheit 2 umfasst eine schematisch eingezeichnete Filtereinheit 3, eine schematisch eingezeichnete Gebläseeinheit 4 sowie eine schematisch dargestellte Energieversorgungseinheit 5. Die Energieversorgungseinheit 5 kann beispielsweise durch Batterien oder Akkus gebildet sein. Es kann jedoch auch vorgesehen sein, dass die Energieversorgungseinheit 5 ein Anschlusskabel zur Verbindung mit einer externen Energieversorgung besitzt. Die Luftreinigungseinheit 2 besitzt ein Gehäuse, aus dem zwei Luftkanäle 6 führen. Im Ausführungsbeispiel sind die Luftkanäle 6 flach ausgebildet und die horizontal gemessene Breite der Luftkanäle 6 entspricht näherungsweise der Breite der Ausströmbereiche 7 und 8. Die Luftkanäle 6 können als Kanäle mit fester Wandung ausgebildet sein. In besonders bevorzugter Gestaltung sind die Luftkanäle 6 jedoch aus luftundurchlässigem, flexiblem Material, beispielsweise aus Kunststofffolie, beschichtetem Gewebe oder dergleichen gebildet.The device 1 has two outflow areas 7 and 8, to which purified breathing air is supplied. For cleaning and conveying the breathing air, an air cleaning unit 2 is provided, which is placed under the bed 9 in the exemplary embodiment. The air cleaning unit 2 comprises a schematically drawn filter unit 3, a schematically drawn blower unit 4 and a schematically illustrated energy supply unit 5. The energy supply unit 5 can be formed for example by batteries or accumulators. However, it can also be provided that the energy supply unit 5 has a connection cable for connection to an external energy supply. The air cleaning unit 2 has a housing from which two air ducts 6 lead. In the exemplary embodiment, the air ducts 6 are flat and the horizontally measured width of the air ducts 6 corresponds approximately to the width of the outflow areas 7 and 8. The air ducts 6 can be constructed as ducts with solid walls. In a particularly preferred embodiment, however, the air channels 6 are formed from air-impermeable, flexible material, for example from plastic film, coated fabric or the like.

Die Vorrichtung 1 besitzt genau zwei Ausströmbereiche 7 und 8, die einander gegenüberliegend angeordnet sind. Die Ausströmbereiche 7 und 8 sind beidseitig des Kopfes 11 der Person 10 angeordnet. Beide Ausströmbereiche 7 und 8 sind gleich groß und näherungsweise parallel zueinander angeordnet. Der Winkel α, den die beiden Ausströmbereiche 7 und 8 miteinander einschließen, beträgt weniger als 10°, insbesondere weniger als 5°. Die Ausströmbereiche besitzen einen Abstand d zueinander, der vorteilhaft auf die Breite des Betts 9 abgestimmt ist. Der Abstand d beträgt vorteilhaft bis zu 120% der Breite des Betts 9. Besonders vorteilhaft ist vorgesehen, dass der Abstand d der Breite der Matratze des Betts 9 entspricht.The device 1 has exactly two outflow areas 7 and 8, which are arranged opposite one another. The outflow areas 7 and 8 are arranged on both sides of the head 11 of the person 10. Both outflow areas 7 and 8 are of the same size and are arranged approximately parallel to one another. The angle α which the two outflow regions 7 and 8 enclose with one another is less than 10 °, in particular less than 5 °. The outflow areas have a spacing d from one another which is advantageously matched to the width of the bed 9. The distance d is advantageously up to 120% of the width of the bed 9. It is particularly advantageous that the distance d corresponds to the width of the mattress of the bed 9.

Aus dem Ausströmbereich 7 strömt die gereinigte Atemluft in einer Ausströmrichtung 14. Aus dem Ausströmbereich 8 strömt die gereinigte Atemluft in einer Ausströmrichtung 15. Die Ausströmrichtungen 14 und 15 sind einander entgegengerichtet und verlaufen vorteilhaft in einem Winkel zueinander, der weniger als 10° beträgt. Vorteilhaft verlaufen die Ausströmrichtungen 14 und 15 parallel zueinander. Die Luftströmungen aus den Ausströmbereichen 7 und 8 strömen aufeinander zu, wie durch die Pfeile 26 schematisch angedeutet ist. Die Strömungsgeschwindigkeit aus beiden Ausströmbereichen 7 und 8 ist im Ausführungsbeispiel gleich, so dass sich die Luftströmungen mittig zwischen den Ausströmbereichen 7 und 8 treffen. In dem Bereich, in dem die Luftströmungen aufeinandertreffen, werden die Luftströmungen gebremst und es bildet sich der Atemluftbereich 12. In dem Atemluftbereich 12 ist die Strömungsgeschwindigkeit geringer als die Ausströmgeschwindigkeit aus den Ausströmbereichen 7 und 8. Der Kopf 11 des Benutzers ist im Ausführungsbeispiel vollständig in dem Atemluftbereich 12 angeordnet. Um die Entstehung von Verwirbelungen oder eine unsymmetrische Ausbildung des Atemluftbereichs 12 zu vermeiden und zu verhindern, dass Luft seitlich abströmt, sind die Ausströmbereiche 7 und 8 symmetrisch zu einer Symmetrieebene 16 ausgebildet. Die Symmetrieebene 16 verläuft mittig zwischen den Ausströmbereichen 7 und 8 durch den Atemluftbereich 12.Die Symmetrieebene 16 bildet in der in Fig. 1 gezeigten Seitenansicht die Winkelhalbierende des Winkels α zwischen den Ausströmbereichen 7 und 8. Die Symmetrieebene liegt näherungsweise senkrecht zu den Ausströmrichtungen 14 und 15. Der Atemluftbereich 12 ist im Ausführungsbeispiel zu allen Seiten offen. Es kann auch vorgesehen sein, dass der Atemluftbereich 12 nach unten durch das Bett 9 begrenzt ist. Bevorzugt ist der Atemluftbereich 12 in mindestens zwei Raumrichtungen, die senkrecht zu den Ausströmrichtungen 14 und 15 verlaufen, offen. Im Ausführungsbeispiel ist der Atemluftbereich 12 nach oben sowie in der Darstellung nach vorne und hinten offen.From the outflow area 7, the purified breathing air flows in an outflow direction 14. From the outflow area 8, the purified breathing air flows in an outflow direction 15. The outflow directions 14 and 15 are opposite to each other and advantageously run at an angle of less than 10 ° to each other. The outflow directions 14 and 15 advantageously run parallel to one another. The air currents from the outflow areas 7 and 8 flow towards one another, as is indicated schematically by the arrows 26. The flow velocity from the two outflow areas 7 and 8 is the same in the exemplary embodiment, so that the air flows meet in the middle between the outflow areas 7 and 8. In the area where the air currents meet, the air currents are slowed down and the breathing air area 12 is formed. In the breathing air area 12, the flow speed is lower than the outflow speed from the outflow areas 7 and 8. In the exemplary embodiment, the user's head 11 is completely in the breathing air area 12 arranged. In order to avoid turbulence or an asymmetrical formation of the breathing air area 12 and to prevent air from flowing out laterally, the outflow areas 7 and 8 are designed symmetrically to a plane of symmetry 16. The plane of symmetry 16 runs centrally between the outflow regions 7 and 8 through the breathing air region 12. The plane of symmetry 16 forms in FIG Fig. 1 The side view shown is the bisector of the angle α between the outflow areas 7 and 8. The plane of symmetry is approximately perpendicular to the outflow directions 14 and 15. The breathing air area 12 is open on all sides in the exemplary embodiment. It can also be provided that the breathing air area 12 is delimited at the bottom by the bed 9. The breathing air region 12 is preferably open in at least two spatial directions which run perpendicular to the outflow directions 14 and 15. In the exemplary embodiment, the breathing air area 12 is open towards the top and towards the front and rear in the illustration.

Die Ausströmgeschwindigkeit der Atemluft aus den Ausströmbereichen 7 und 8 beträgt vorteilhaft mindestens 0,2 m/s. Um eine möglichst geringe Geräuschentwicklung zu erzielen, ist vorteilhaft vorgesehen, dass die Ausströmgeschwindigkeit 0,2 m/s bis 0,3 m/s beträgt. Insbesondere bei größerem Abstand d der Ausströmbereiche 7 und 8 zueinander kann die Ausströmgeschwindigkeit jedoch auch deutlich größer sein. Vorteilhaft beträgt die Ausströmgeschwindigkeit 0,2 m/s bis 2,0 m/s. Die angegebenen Strömungsgeschwindigkeiten beziehen sich dabei auf Raumtemperaturen von 18° C bis 23° C und eine relative Luftfeuchte von 30% bis 65%. Bei abweichender Temperatur und/oder Luftfeuchte ist vorteilhaft eine Anpassung der Strömungsgeschwindigkeiten vorgesehen. Das Verhältnis des Quadrats des Abstands d zur Fläche der Ausströmbereiche 7 bzw. 8 beträgt vorteilhaft etwa 5 bis etwa 25, vorzugsweise von etwa 5 bis etwa 15, bevorzugt von etwa 5 bis etwa 10.The outflow speed of the breathing air from the outflow areas 7 and 8 is advantageously at least 0.2 m / s. In order to achieve the lowest possible noise development, it is advantageously provided that the outflow speed is 0.2 m / s to 0.3 m / s. In particular, if the distance d between the outflow regions 7 and 8 is greater, the outflow speed can also be significantly greater. The outflow speed is advantageously 0.2 m / s to 2.0 m / s. The specified flow rates relate to room temperatures of 18 ° C to 23 ° C and a relative humidity of 30% to 65%. If the temperature and / or air humidity differ, the flow velocities are advantageously adapted. The ratio of the square of the distance d to the area of the outflow regions 7 or 8 is advantageously about 5 to about 25, preferably from about 5 to about 15, preferably from about 5 to about 10.

Fig. 2 zeigt einen Luftkanal 6 sowie den ersten Ausströmbereich 7 schematisch im Schnitt. Der Luftkanal 6 ist durch eine Begrenzungswand 13 begrenzt. Die Begrenzungswand 13 kann durch ein formstabiles Material, beispielsweise ein Kunststoffgehäuse gebildet sein. Die Begrenzungswand 13 kann jedoch auch durch luftundurchlässiges, insbesondere beschichtetes Gewebe, Folie oder dergleichen gebildet sein. Der Luftkanal 6 besitzt eine senkrecht zur Strömungsrichtung gemessene Breite e. Die Breite e ist deutlich kleiner als eine Höhe c des Ausströmbereichs 7. Im Ausführungsbeispiel beträgt die Breite e weniger als die Hälfte der Höhe c. Fig. 2 shows an air duct 6 and the first outflow area 7 schematically in section. The air duct 6 is delimited by a delimitation wall 13. The boundary wall 13 can be formed by a dimensionally stable material, for example a plastic housing. The boundary wall 13 can, however, also be formed by air-impermeable, in particular coated fabric, film or the like. The air duct 6 has a width e measured perpendicular to the direction of flow. The width e is significantly smaller than a height c of the outflow area 7. In the exemplary embodiment, the width e is less than half the height c.

Im Ausführungsbeispiel ist der Ausströmbereich 7 von Gewebe 17 abgedeckt. In dem Gewebe 17 sind eine Vielzahl von in Fig. 2 schematisch dargestellten Durchtrittsöffnungen 18 gebildet, die jeweils mit einer Luftaustrittsöffnung 19 in die Umgebung münden. Über die Durchtrittsöffnungen 18 tritt gereinigte Atemluft durch die Luftaustrittsöffnungen 19 in der Ausströmrichtung 14 in die Umgebung aus. Der Durchmesser der einzelnen Luftaustrittsöffnungen 19 beträgt vorteilhaft weniger als 0,5 mm. Bevorzugt weist jeder Ausströmbereich 7, 8 mindestens 10.000 Luftaustrittsöffnungen 19 auf. Anstatt des Gewebes 17 können die Luftaustrittsöffnungen 19 auch durch einzelne Öffnungen, beispielsweise Öffnungen in einer perforierten Folie oder dgl. gebildet sein.In the exemplary embodiment, the outflow area 7 is covered by tissue 17. In the fabric 17 are a plurality of in Fig. 2 through openings 18, shown schematically, each opening into the environment with an air outlet opening 19. Via the passage openings 18, purified breathing air exits through the air outlet openings 19 in the outflow direction 14 into the environment. The diameter of the individual air outlet openings 19 is advantageously less than 0.5 mm. Each outflow area 7, 8 preferably has at least 10,000 air outlet openings 19. Instead of the fabric 17, the air outlet openings 19 can also be formed by individual openings, for example openings in a perforated film or the like.

Im Luftkanal 6 ist im Ausführungsbeispiel ein Abstandsgewebe 20 angeordnet, durch das die Atemluft gleichmäßig hindurchströmt. Dadurch wird die gesamte Fläche des Ausströmbereichs 7 vergleichsweise gleichmäßig mit gereinigter Atemluft versorgt.In the exemplary embodiment, a spacer fabric 20 is arranged in the air duct 6, through which the breathing air flows evenly. As a result, the entire area of the outflow area 7 is supplied comparatively evenly with purified breathing air.

Fig. 3 zeigt ein Ausführungsbeispiel für ein Abstandsgewebe 20 im Einzelnen. Das Abstandsgewebe 20 besitzt an der dem ersten Ausströmbereich 7 abgewandten Seite luftundurchlässiges Material 21. Am Ausströmbereich 7 ist das Gewebe 17 als luftdurchlässiges Material vorgesehen. Alternativ kann auch perforierte Kunststofffolie oder dergleichen vorgesehen sein. Das Abstandsgewebe 20 besitzt eine erste Seite 22, die dem Ausströmbereich 7 zugewandt liegt, sowie einen zweite Seite 23, die dem luftundurchlässigen Material 21 zugewandt liegt. Das Abstandsgewebe 20 kann dabei den Abstand zwischen dem luftundurchlässigen Material 21 und dem Gewebe 17 (Fig. 2) ausfüllen oder mit geringem Abstand zu diesem angeordnet sein. Zwischen der ersten Seite 22 und der zweiten Seite 23 erstrecken sich Querfäden 24 des Abstandsgewebes 20. Das Abstandsgewebe 20 ist bevorzugt ein Abstandsgewirke. Material und Fadendicke des Abstandsgewebes 20 sind vorteilhaft so gewählt, dass das Abstandsgewebe 20 weitgehend formstabil ist und bei den üblichen auf den Luftkanal einwirkenden Kräften einen Abstand zwischen den beiden Längsseiten des Luftkanals 6 sicherstellt. Fig. 3 shows an embodiment for a spacer fabric 20 in detail. On the side facing away from the first outflow area 7, the spacer fabric 20 has air-impermeable material 21. On the outflow area 7, the fabric 17 is provided as an air-permeable material. Alternatively, perforated plastic film or the like can also be provided. The spacer fabric 20 has a first side 22 which faces the outflow region 7 and a second side 23 which faces the air-impermeable material 21. The spacer fabric 20 can be the distance between the air-impermeable material 21 and the fabric 17 ( Fig. 2 ) or be arranged at a short distance from it. Transverse threads 24 of the spacer fabric 20 extend between the first side 22 and the second side 23. The spacer fabric 20 is preferably a knitted spacer fabric. The material and thread thickness of the spacer fabric 20 are advantageously selected so that the spacer fabric 20 is largely dimensionally stable and ensures a distance between the two longitudinal sides of the air duct 6 with the usual forces acting on the air duct.

Der Volumenstrom durch die Ausströmbereiche 7 und 8 beträgt vorteilhaft insgesamt 0,01 m3/s bis 0,2 m3/s. Vorteilhaft wird eine Reinigungseffizienz von mindestens 95%, insbesondere bis zu 98% der Partikel erreicht.The volume flow through the outflow areas 7 and 8 is advantageously a total of 0.01 m 3 / s to 0.2 m 3 / s. A cleaning efficiency of at least 95%, in particular up to 98% of the particles is advantageously achieved.

Fig. 4 zeigt ein Ausführungsbeispiel einer Vorrichtung 1 zur Zufuhr von Atemluft, bei dem die beiden Ausströmbereiche 7 und 8 in einem Abstand d von etwas mehr als 2 m zueinander angeordnet sind. Auch hier sind die Ausströmbereiche 7 und 8 näherungsweise parallel zueinander angeordnet, schließen also einen Winkel von weniger als 10° miteinander ein. Bei einer Blickrichtung in Richtung der Verbindung der geometrischen Mitten der beiden Ausströmbereiche 7 und 8, die durch den Pfeil 25 angedeutet ist, liegen die beiden Ausströmbereiche 7 und 8 deckungsgleich übereinander. Die Ausströmbereiche 7 und 8 besitzen jeweils eine Fläche A, die vorteilhaft mindestens 400 cm2 beträgt. Das Verhältnis des Abstands d im Quadrat zur Fläche A, also d2/A, beträgt vorteilhaft etwa 5 bis etwa 25, vorzugsweise von etwa 5 bis etwa 15, bevorzugt von etwa 5 bis etwa 10. Jeder Ausströmbereich 7, 8 besitzt eine Breite b sowie eine Höhe c. Die Höhe b und die Höhe c sind senkrecht zueinander und senkrecht zu der in Fig. 4 nicht eingezeichneten, in Fig. 2 gezeigten Breite e gemessen. Im Ausführungsbeispiel nach Fig. 4 ist die Höhe c kleiner als die Breite b. Die Breite e (Fig. 2) ist deutlich kleiner als die Höhe c und die Breite b. Die Ausströmbereiche 7 und 8 besitzen im Ausführungsbeispiel eine näherungsweise rechteckige Gestalt. Die Höhe c stellt im Ausführungsbeispiel nach Fig. 4 die kleinste Erstreckung der zweidimensionalen Ausströmbereiche 7, 8 dar. Die Höhe c beträgt vorteilhaft mindestens 20 cm, insbesondere mindestens 25 cm. Dadurch kann sichergestellt werden, dass der sich zwischen den Ausströmbereichen 7 und 8 bildende Atemluftbereich 12 ausreichend groß ist, so dass der Kopf eines Benutzers oder die Köpfe mehrerer Benutzer vollständig in dem Atemluftbereich 12 angeordnet sind. Im Ausführungsbeispiel sind die Atemluftbereiche 7 und 8 näherungsweise senkrecht und beidseitig des Bettes 9 auf Höhe des Kopfes eines Benutzers angeordnet. Die Breite b ist vorteilhaft kleiner als 50 cm, insbesondere kleiner als 40 cm. Der Oberkörper und die Beine eines Benutzers befinden sich dadurch weitgehend oder vollständig außerhalb des Atemluftbereichs 12. Fig. 4 shows an embodiment of a device 1 for supplying breathing air, in which the two outflow areas 7 and 8 are arranged at a distance d of slightly more than 2 m from one another. Here, too, the outflow areas 7 and 8 are arranged approximately parallel to one another, that is to say they form an angle of less than 10 ° with one another. When looking in the direction of the connection of the geometric centers of the two outflow areas 7 and 8, which is indicated by the arrow 25, lie the two outflow areas 7 and 8 congruent one above the other. The outflow areas 7 and 8 each have an area A which is advantageously at least 400 cm 2 . The ratio of the distance d squared to the area A, i.e. d 2 / A, is advantageously about 5 to about 25, preferably from about 5 to about 15, preferably from about 5 to about 10. Each outflow area 7, 8 has a width b as well as a height c. The height b and the height c are perpendicular to each other and perpendicular to that in Fig. 4 not shown, in Fig. 2 shown width e measured. In the embodiment according to Fig. 4 the height c is smaller than the width b. The width e ( Fig. 2 ) is significantly smaller than the height c and the width b. The outflow areas 7 and 8 have an approximately rectangular shape in the exemplary embodiment. The height c adjusts in the embodiment Fig. 4 represents the smallest extension of the two-dimensional outflow areas 7, 8. The height c is advantageously at least 20 cm, in particular at least 25 cm. It can thereby be ensured that the breathing air area 12 forming between the outflow areas 7 and 8 is sufficiently large so that the head of one user or the heads of several users are arranged completely in the breathing air area 12. In the exemplary embodiment, the breathing air areas 7 and 8 are arranged approximately vertically and on both sides of the bed 9 at the level of the head of a user. The width b is advantageously less than 50 cm, in particular less than 40 cm. The upper body and the legs of a user are thereby largely or completely outside the breathing air region 12.

Fig. 5 zeigt ein weiteres Ausführungsbeispiel, das neben den einander gegenüberliegend angeordneten Ausströmbereichen 7 und 8 einen dritten Ausströmbereich 27 besitzt. Der dritte Ausströmbereich 27 ist gegenüberliegend zu einer Begrenzungsfläche 28 angeordnet und schließt mit dieser einen Winkel von weniger als 10° ein. Bevorzugt liegen der Ausströmbereich 27 und die Begrenzungsfläche 28 parallel zueinander. Im Ausführungsbeispiel sind die Ausströmbereiche 7 und 8 symmetrisch zu einer Symmetrieebene angeordnet und ausgebildet, die den Ausströmbereich 27 und die Begrenzungsfläche 28 mittig schneidet. Auch der Ausströmbereich 27 ist symmetrisch zu dieser Symmetrieebene angeordnet und ausgebildet. Die Begrenzungsfläche 28 kann beispielsweise die Oberseite eines Bettes sein, über dem die Vorrichtung 1 angeordnet wird. Zwischen den Ausströmbereichen 7 und 8 bildet sich ein Atemluftbereich 12, der in Fig. 5 schematisch dargestellt ist. Aus dem Ausströmbereich 27 strömt Atemluft in einer Strömungsrichtung 29, die im Ausführungsbeispiel senkrecht zu den Strömungsrichtungen 14 und 15 verläuft. Die Ausströmrichtung 29 ist bevorzugt senkrecht auf die Begrenzungsfläche 29 gerichtet oder schließt mit dieser einen Winkel von mindestens 80° ein. Die aus dem dritten Ausströmbereich 27 ausströmende Luft und die Begrenzungsfläche 28 stellen sicher, dass Luft aus dem Atemluftbereich 12 nicht in der Darstellung nach Fig. 5 nach oben oder unten entweichen kann. Die abströmende Frischluft verdrängt dabei die verschmutzte Umgebungsluft, so dass eine hohe Reinigungseffizienz erreicht wird. Fig. 5 shows a further embodiment which has a third outflow area 27 in addition to the outflow areas 7 and 8 arranged opposite one another. The third outflow area 27 is arranged opposite a boundary surface 28 and forms an angle of less than 10 ° with it. The outflow area 27 and the delimiting surface 28 are preferably parallel to one another. In the exemplary embodiment, the outflow areas 7 and 8 are arranged and designed symmetrically to a plane of symmetry which intersects the outflow area 27 and the boundary surface 28 in the middle. The outflow area 27 is also symmetrical to this Plane of symmetry arranged and formed. The boundary surface 28 can for example be the top of a bed over which the device 1 is arranged. A breathing air area 12 is formed between the outflow areas 7 and 8 and is shown in FIG Fig. 5 is shown schematically. Breathing air flows out of the outflow area 27 in a flow direction 29 which, in the exemplary embodiment, runs perpendicular to the flow directions 14 and 15. The outflow direction 29 is preferably directed perpendicularly to the boundary surface 29 or forms an angle of at least 80 ° with it. The air flowing out of the third outflow area 27 and the boundary surface 28 ensure that air from the breathing air area 12 does not follow in the illustration Fig. 5 can escape up or down. The fresh air flowing out displaces the polluted ambient air, so that a high cleaning efficiency is achieved.

Fig. 6 zeigt ein weiteres Ausführungsbeispiel einer Vorrichtung 1 zur Zufuhr von Atemluft. Bei der Vorrichtung 1 aus Fig. 6 handelt es sich um eine mobile Einrichtung, die von einem Benutzer getragen wird. Dadurch wird der Benutzer permanent mit gereinigter Frischluft versorgt, während er sich bewegt. Die beiden Ausströmbereiche 7 und 8 sind beidseitig des Gesichts der Person 10 angeordnet, und zwar so, dass der Bereich von Nase und Mund der Person 10 in dem sich zwischen den Ausströmbereichen 7 und 8 bildenden Atemluftbereich 12 angeordnet ist. Die Ausströmbereiche 7, 8 besitzen einen Abstand d zueinander, der vorteilhaft 5 cm bis 20 cm, insbesondere 10 cm bis 15 cm beträgt. Das Verhältnis des Abstands d im Quadrat zur Fläche A eines Ausströmbereichs 7 oder 8 beträgt vorteilhaft etwa 5 bis etwa 25, vorzugsweise von etwa 15 bis etwa 25. Im Ausführungsbeispiel ist eine Fläche A für jeden Ausströmbereich 7, 8 vorgesehen, die etwa 5 cm2 beträgt, so dass sich bei einem Abstand d von 10 cm ein Verhältnis d2/A von 20 ergibt. Fig. 6 shows a further embodiment of a device 1 for supplying breathing air. At device 1 off Fig. 6 it is a mobile device that is carried by a user. This means that the user is constantly supplied with purified fresh air while he is moving. The two outflow areas 7 and 8 are arranged on both sides of the face of the person 10 in such a way that the area of the nose and mouth of the person 10 is arranged in the breathing air area 12 that forms between the outflow areas 7 and 8. The outflow areas 7, 8 have a spacing d from one another which is advantageously 5 cm to 20 cm, in particular 10 cm to 15 cm. The ratio of the distance d squared to the area A of an outflow area 7 or 8 is advantageously about 5 to about 25, preferably from about 15 to about 25. In the exemplary embodiment, an area A is provided for each outflow area 7, 8, which is about 5 cm 2 so that at a distance d of 10 cm a ratio d 2 / A of 20 results.

In allen Ausführungsbeispielen beträgt der in cm gemessenen Abstand d zwischen dem Ausströmbereich 7, 8, 27 und der zugeordneten Begrenzungsfläche 28 bzw. dem zugeordneten Ausströmbereich 7, 8 geteilt durch die in cm/s gemessene Ausströmgeschwindigkeit mindestens 1,0. Die Fläche A (Fig. 4) mindestens eines, insbesondere aller Ausströmbereiche 7, 8, 27 beträgt insbesondere für stationäre Anwendungen wie an einem Bett 9 vorteilhaft jeweils mindestens 400 cm2. Das Verhältnis des in cm gemessenen Abstands d zwischen dem Ausströmbereich 7, 8, 27 und der Begrenzungseinrichtung im Quadrat zur in cm2 gemessenen Fläche A des Ausströmbereichs 7, 8, 27 beträgt vorteilhaft von etwa 5 bis etwa 25.In all exemplary embodiments, the distance d, measured in cm, between the outflow area 7, 8, 27 and the associated boundary surface 28 or the associated one Outflow area 7, 8 divided by the outflow velocity measured in cm / s at least 1.0. The area A ( Fig. 4 ) at least one, in particular all of the outflow areas 7, 8, 27 is advantageously at least 400 cm 2 , particularly for stationary applications such as on a bed 9. The ratio of the distance d, measured in cm, between the outflow area 7, 8, 27 and the delimitation device squared to the area A of the outflow area 7, 8, 27 measured in cm 2 is advantageously from about 5 to about 25.

Bei allen Ausführungsbeispielen, insbesondere beim Ausführungsbeispiel nach Fig. 6, kann zusätzlich vorgesehen sein, dass ein oder mehrere Abschirmluftströme gebildet sind, die den Atemluftbereich 12 von der Umgebung trennen. Die Abschirmluftströme werden vorteilhaft nicht durch flächige Ausströmbereiche gebildet, sondern durch schmale, längliche Ausströmöffnungen, so dass eine hohe Strömungsgeschwindigkeit des Abschirmluftstroms erzielt wird.In all exemplary embodiments, in particular in the exemplary embodiment according to Fig. 6 , it can additionally be provided that one or more shielding air flows are formed which separate the breathing air area 12 from the surroundings. The shielding air flows are advantageously not formed by flat outflow areas, but rather by narrow, elongated outflow openings, so that a high flow speed of the shielding air flow is achieved.

Fig. 7 zeigt ein Ausführungsbeispiel eines Ausströmbereichs 7, der am Ende eines Luftkanals 6 ausgebildet ist. Der Ausströmbereich 7 ist flächig ausgebildet und besitzt mehrere, längliche Luftaustrittsöffnungen 19. Der gegenüberliegende, in Fig. 7 nicht gezeigte Ausströmbereich 8 ist vorteilhaft identisch ausgebildet. Im Ausführungsbeispiel erstrecken sich die Luftaustrittsöffnungen 19 parallel zur Strömungsrichtung 31 im Luftkanal 6 über die gesamte Höhe c des Ausströmbereichs 7. Die Luftaustrittsöffnungen 19 sind länglich ausgebildet, wobei die Höhe der Luftaustrittsöffnungen 19 mehr als das Doppelte von deren Breite beträgt. Im Ausführungsbeispiel sind insgesamt zehn einzelne Luftaustrittsöffnungen 19 vorgesehen, die durch Rippen 30 voneinander getrennt sind. Auch eine andere Anzahl von Luftaustrittsöffnungen 19 kann vorteilhaft sein. Die Anzahl und der Abstand der Rippen 30, zwischen denen die Luftaustrittsöffnungen 19 gebildet sind, sind vorteilhaft so gewählt, dass sich am Ausströmbereich 7 eine laminare Strömung einstellt, die in Ausströmrichtung 14 aus dem Ausströmbereich 7 ausströmt. Im Ausführungsbeispiel besitzen die Rippen 30 eine in Ausströmrichtung 14 gemessene Breite f, die kleiner als die Breite e des Luftkanals 6 ist. Die Rippen 30 erstrecken sich damit nicht bis zu einer dem Ausströmbereich 7 gegenüberliegend angeordneten Rückseite des Luftkanals 6. Es kann jedoch auch vorteilhaft sein, dass sich die Rippen 30 über die gesamte Breite e des Luftkanals 6 erstrecken. Fig. 7 shows an exemplary embodiment of an outflow area 7 which is formed at the end of an air duct 6. The outflow area 7 is flat and has several elongated air outlet openings 19. The opposite, in Fig. 7 The outflow area 8, not shown, is advantageously of identical design. In the exemplary embodiment, the air outlet openings 19 extend parallel to the flow direction 31 in the air duct 6 over the entire height c of the outflow area 7. The air outlet openings 19 are elongated, the height of the air outlet openings 19 being more than twice their width. In the exemplary embodiment, a total of ten individual air outlet openings 19 are provided, which are separated from one another by ribs 30. A different number of air outlet openings 19 can also be advantageous. The number and the spacing of the ribs 30, between which the air outlet openings 19 are formed, are advantageously selected such that a laminar flow is established at the outflow area 7, which flows out of the outflow area 7 in the outflow direction 14. In the exemplary embodiment, the ribs 30 have a width f, measured in the outflow direction 14, which is smaller than the width e of the air duct 6. The ribs 30 thus do not extend as far as a rear side of the air duct 6 arranged opposite the outflow region 7. However, it can also be advantageous for the ribs 30 to extend over the entire width e of the air duct 6.

Beim Ausführungsbeispiel nach Fig. 8 wird der Ausströmbereich 7 durch eine Vielzahl von einzelnen Luftaustrittsöffnungen 19 gebildet, die jeweils einen kreisförmigen Querschnitt besitzen. Die Luftaustrittsöffnungen 19 werden durch Stirnseiten von Rohren 32 gebildet. Die Rohre 32 sind im Ausführungsbeispiel etwa L-förmig gebogen und lenken die Atemluft aus einer Strömungsrichtung 31, in der die Atemluft durch den Luftkanal 6 (Fig. 7) strömt, in die senkrecht hierzu ausgerichtete Ausströmrichtung 14 um. Im Ausführungsbeispiel sind 36 Luftaustrittsöffnungen 19 vorgesehen. Vorteilhafte Anzahlen von Luftaustrittsöffnungen 19 können von 10 bis 100 Luftaustrittsöffnungen 19 sein. Es kann vorgesehen sein, dass die Rohre 32 in einem Luftkanal 6 angeordnet sind. In alternativer vorteilhafter Gestaltung können die Rohre 32 an einen Luftkanal 6 angeschlossen sein und diesen bis zum Ausströmbereich 7 fortsetzen.In the embodiment according to Fig. 8 the outflow area 7 is formed by a plurality of individual air outlet openings 19, each of which has a circular cross section. The air outlet openings 19 are formed by the end faces of tubes 32. The tubes 32 are bent approximately L-shaped in the exemplary embodiment and direct the breathing air from a flow direction 31 in which the breathing air flows through the air duct 6 ( Fig. 7 ) flows around in the outflow direction 14 oriented perpendicular thereto. In the exemplary embodiment, 36 air outlet openings 19 are provided. Advantageous numbers of air outlet openings 19 can be from 10 to 100 air outlet openings 19. It can be provided that the tubes 32 are arranged in an air duct 6. In an alternative advantageous embodiment, the tubes 32 can be connected to an air duct 6 and continue this up to the outflow area 7.

Fig. 9 zeigt ein weiteres Ausführungsbeispiel der Gestaltung des Ausströmbereichs 7. Der Ausströmbereich 7 ist in insgesamt fünf Luftaustrittsöffnungen 19 unterteilt, deren größte Erstreckung jeweils senkrecht zur Strömungsrichtung 31 im Luftkanal 6 verläuft. Der Ausströmbereich 7 ist durch Rippen 30, 30', 30", 30"' in Luftaustrittsöffnungen 19 unterteilt. Im Ausführungsbeispiel sind fünf Luftaustrittsöffnungen 19 vorgesehen. Auch eine andere Anzahl von Luftaustrittsöffnungen 19 kann jedoch vorteilhaft sein. Die bezogen auf die Strömungsrichtung 31 vorne liegende Rippe 30'" besitzt eine Breite f", die weniger als die Hälfte der Breite e des Luftkanals 6 beträgt. Die in Strömungsrichtung darauf folgende Rippe 30" besitzt eine Breite f', die größer als die Breite f" ist. Im Ausführungsbeispiel erstreckt sich die Rippe 30" über näherungsweise die Hälfte der Breite des Innenraums des Luftkanals 6. Die Rippen 30'" und 30" besitzen einen Abstand g zueinander, der deutlich größer als die Differenz zwischen den Breiten f' und f" ist. Vorteilhaft beträgt der Abstand g das 2fache bis 10fache der Differenz der Abstände f' und f". Fig. 9 shows a further exemplary embodiment of the design of the outflow area 7. The outflow area 7 is divided into a total of five air outlet openings 19, the largest extent of which is perpendicular to the flow direction 31 in the air duct 6. The outflow area 7 is divided into air outlet openings 19 by ribs 30, 30 ', 30 ", 30"'. In the exemplary embodiment, five air outlet openings 19 are provided. However, a different number of air outlet openings 19 can also be advantageous. The rib 30 ′ ″ located at the front in relation to the flow direction 31 has a width f ″ which is less than half the width e of the air duct 6. The rib 30 ″ which follows in the flow direction has a width f ′ which is greater than the width f ″. In the exemplary embodiment, the rib 30 ″ extends over approximately half the width of the interior of the air duct 6. The ribs 30 ′ ″ and 30 ″ have a distance g from one another which is significantly greater than the difference between the widths f ′ and f ″. The distance g is advantageously twice to 10 times the difference between the distances f 'and f ".

In Strömungsrichtung 31 folgt auf die Rippe 30" eine in den Luftkanal 6 einragende Rippe 30', die eine Breite f besitzt. Auf die Rippe 30' folgt eine Rippe 30 mit einer Breite f. Auch die Rippe 30 erstreckt sich nicht über die gesamte Breite des Innenraums des Luftkanals 6. Im Ausführungsbeispiel ist der Abstand g zwischen in Strömungsrichtung 31 aufeinander folgenden Rippen 30, 30', 30", 30'" konstant. Ebenso ist die Differenz der Breiten f, f, f', f" zwischen in Strömungsrichtung 31 aufeinander folgenden Rippen 30, 30', 30",30'" gleich. In bevorzugter Gestaltung ist das Verhältnis zwischen der Differenz der Breiten f, f, f', f" und dem Abstand g für alle aufeinander folgenden Rippen 30, 30', 30", 30"' gleich.In the flow direction 31 follows the rib 30 ″ protruding into the air duct 6 and having a width f. The rib 30 ′ is followed by a rib 30 having a width f. The rib 30 does not extend over the entire width either of the interior of the air duct 6. In the exemplary embodiment, the distance g between ribs 30, 30 ', 30 ", 30'" following one another in flow direction 31 is constant. The difference in widths f, f, f ', f "between in flow direction is also constant 31 successive ribs 30, 30 ', 30 ", 30'" equal. In a preferred embodiment, the ratio between the difference in the widths f, f, f ', f "and the distance g is the same for all successive ribs 30, 30', 30", 30 "'.

Dadurch, dass die Rippen 30, 30', 30", 30'" unterschiedlich weit in den Luftkanal 6 einragen, wird jeweils ein Teil der Luftströmung aus dem Luftkanal 6 abgezweigt und zu einer Luftaustrittsöffnung 19 geleitet. Die Rippen 30, 30', 30", 30'" sind dabei gegenüber der Strömungsrichtung 31 um weniger als 90° geneigt, in bevorzugter Gestaltung leicht gebogen, so dass sich eine sanfte Umlenkung des Luftstroms ergibt. Die Gestaltung der Rippen 30 ist so getroffen, dass die Atemluft aus dem Ausströmbereich 7 in Ausströmrichtung 14 als laminare Strömung ausströmt.Because the ribs 30, 30 ′, 30 ″, 30 ′ ″ protrude differently into the air duct 6, part of the air flow is branched off from the air duct 6 and directed to an air outlet opening 19. The ribs 30, 30 ′, 30 ″, 30 ′ ″ are inclined by less than 90 ° with respect to the flow direction 31, and in a preferred configuration are slightly bent so that the air flow is gently deflected. The design of the ribs 30 is such that the breathing air flows out of the outflow area 7 in the outflow direction 14 as a laminar flow.

Claims (14)

  1. Device for supplying respiratory air to a respiratory air region, having an air purification unit (2) comprising a filter unit (3) and a fan unit (4), wherein the device (1) has at least one planar outflow region (7, 8, 27) for respiratory air with at least two air discharge openings (19), to which the air purification unit (2) supplies purified respiratory air, wherein the respiratory air flows out of the outflow region (7, 8, 27) in an outflow direction (14, 15, 29), wherein opposite the outflow region (7, 8, 27) a planar limiting device is located, the area of which corresponds at least to the area of the outflow region (7, 8, 27), wherein the limiting device encloses with the outflow region (7, 8, 27) an angle (α) of less than 10°, and wherein the respiratory air region (12) is located between the limiting device and the outflow region (7, 8, 27), the device (1) having a planar limiting device opposite each outflow region (7, 8, 27),
    characterised in that the ratio of the distance (d) measured in centimetres between the outflow region (7, 8, 27) and the limiting device is in the square approximately 5 to 25 with respect to the area (A) of the outflow region (7, 8, 27) measured in square centimetres, and in that at least one outflow region (7, 8, 27) has an area (A) of at least 400 cm2.
  2. Device according to claim 1,
    characterised in that the outflow rate of the respiratory air from the outflow region (7, 8, 27) is higher than the air flow rate in the respiratory air region (12), being at least twice the latter.
  3. Device according to claim 1 or 2,
    characterised in that the flow rate which sets in during the operation of the device in static ambient air in the respiratory air region (12) as a result of the respiratory air flowing out through the at least one outflow region (7, 8, 27) is less than 0.1 m/s.
  4. Device according to any of claims 1 to 3,
    characterised in that the outflow rate of the respiratory air from the outflow region (7, 8, 27) is at least 0.2 m/s.
  5. Device according to any of claims 1 to 4,
    characterised in that the limiting device is arranged perpendicular to the outflow direction (14, 15, 29) from the outflow region (7, 8, 27).
  6. Device according to any of claims 1 to 5,
    characterised in that the outflow region (7, 8, 27) and the limiting device are designed to be mirror-symmetric with respect to a plane of symmetry (16) dividing the respiratory air region (12) and extending transversely to the outflow direction (14, 15, 29).
  7. Device according to any of claims 1 to 6,
    characterised in that the limiting device is represented by a second planar outflow region (8).
  8. Device according to claim 7,
    characterised in that the area of the first outflow region (7) and the area of the second outflow region (8) are the same.
  9. Device according to claim 7 or 8,
    characterised in that the two outflow regions (7, 8) are designed congruent with each other.
  10. Device according to any of claims 7 to 9,
    characterised in that each outflow region (7) is assigned an opposite, congruent outflow region (8).
  11. Device according to any of claims 1 to 10,
    characterised in that all outflow regions (7, 8, 27) have an area (A) of at least 400 cm2 each.
  12. Device according to any of claims 1 to 11,
    characterised in that the ratio of the distance (d) measured in centimetres between the outflow region (7, 8, 27) and the limiting device and the outflow rate measured in cm/s is at least 1.0.
  13. Device according to any of claims 1 to 12,
    characterised in that at least one outflow region (7, 8, 27) and in particular all outflow regions (7, 8, 27) are designed to be planar.
  14. Device according to any of claims 1 to 13,
    characterised in that at least one outflow region (7, 8, 27) has a plurality of air discharge openings (19) formed on a fabric (17) in particular.
EP17001202.5A 2017-07-13 2017-07-13 Device for supplying respiratory air to a respiratory air area Active EP3427613B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP17001202.5A EP3427613B1 (en) 2017-07-13 2017-07-13 Device for supplying respiratory air to a respiratory air area
CN201711250124.5A CN109247751A (en) 2017-07-13 2017-12-01 For air delivery will to be breathed to the device for breathing air section
US15/828,453 US20190014915A1 (en) 2017-07-13 2017-12-01 Device for Supply of Breathing Air to a Breathing Air Region

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17001202.5A EP3427613B1 (en) 2017-07-13 2017-07-13 Device for supplying respiratory air to a respiratory air area

Publications (2)

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EP3427613A1 EP3427613A1 (en) 2019-01-16
EP3427613B1 true EP3427613B1 (en) 2020-10-07

Family

ID=59362873

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Application Number Title Priority Date Filing Date
EP17001202.5A Active EP3427613B1 (en) 2017-07-13 2017-07-13 Device for supplying respiratory air to a respiratory air area

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US (1) US20190014915A1 (en)
EP (1) EP3427613B1 (en)
CN (1) CN109247751A (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU711093B2 (en) 1995-06-07 1999-10-07 Halo Innovations, Inc Mattress and method for preventing accumulation of carbon dioxide in bedding
US7037188B2 (en) * 2003-04-08 2006-05-02 Halo Innovations, Inc. Systems for delivering conditioned air to personal breathing zones
CN100430660C (en) * 2003-04-08 2008-11-05 呵护创新股份有限公司 Systems for delivering conditioned air to personal breathing zones
US7543583B2 (en) * 2004-07-28 2009-06-09 Hill-Rom Services, Inc. Forced air vent in siderail
JP2013213641A (en) * 2012-04-03 2013-10-17 Sharp Corp Air conditioning device, and air conditioning method
CN203168575U (en) * 2013-03-25 2013-09-04 浙江和也健康科技有限公司 Air purification bed
CN203776489U (en) * 2014-04-21 2014-08-20 崔建清 Novel air purification bed
DE102014017533A1 (en) * 2014-11-21 2016-05-25 Jrp Vision Ltd. air supply
WO2016078773A1 (en) * 2014-11-21 2016-05-26 Red Gmbh Air-supply device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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EP3427613A1 (en) 2019-01-16
US20190014915A1 (en) 2019-01-17
CN109247751A (en) 2019-01-22

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