EP2473789A1 - Device and method for supplying a cooled airflow to at least one location for cooling - Google Patents

Device and method for supplying a cooled airflow to at least one location for cooling

Info

Publication number
EP2473789A1
EP2473789A1 EP10747326A EP10747326A EP2473789A1 EP 2473789 A1 EP2473789 A1 EP 2473789A1 EP 10747326 A EP10747326 A EP 10747326A EP 10747326 A EP10747326 A EP 10747326A EP 2473789 A1 EP2473789 A1 EP 2473789A1
Authority
EP
European Patent Office
Prior art keywords
wall
guide duct
cooling
location
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10747326A
Other languages
German (de)
French (fr)
Inventor
Yoeri Nagtegaal
Thomas Petrus Van Den Groenendaal
Gerwin Jansen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
QRISP BV
Original Assignee
QRISP BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by QRISP BV filed Critical QRISP BV
Publication of EP2473789A1 publication Critical patent/EP2473789A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/62—Accessories for chairs
    • A47C7/72—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
    • A47C7/74—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling
    • A47C7/742—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling for ventilating or cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/04—Arrangements for portability
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser

Definitions

  • the present invention relates to a device for supplying a cooled airflow to at least one location for cooling.
  • the present invention also relates " to supplying a cooled airflow to at least one location for cooling using such a device.
  • the device comprises a cooling unit for generating a cooled airflow; and a guide duct for guiding the cooled airflow from the cooling unit to the at least one location for cooling, wherein substantially the whole wall of the guide duct is permeable to the air of the cooled airflow, an outflow part of the wall of the guide duct has a first air permeability, and a guide part of the wall has a second air permeability, wherein the outflow part of the wall can be placed close to the at least one location for cooling and the air permeability of the outflow part of the wall is higher than the air permeability of the guide part of the wall .
  • This device makes it possible, by means of the placing of the outflow part of the wall of the guide duct close to a specific location for cooling within a space, for instance a bed or a workplace, to concentrate the cooled airflow on this specific location.
  • condensation can for instance reduce comfort when the condensation falls from the wall onto the bed, the
  • the outflow part of the wall of the guide duct can be placed above the at least one location for cooling.
  • This measure makes it possible to use gravitational force to allow the relatively cold air to move downward to the location for cooling and the persons making use thereof .
  • the temperature of the cooled airflow is at least 2°C lower than the temperature of the ambient air.
  • the temperature of the cooled airflow which is at least 2°C lower relative to the temperature of the ambient air ensures that the cooled air moves downward to the location for cooling by means of gravitational force, wherein the person making use of the location experiences a pleasant cooling without draught .
  • the outflow part of the wall of the guide duct can be placed above the at least one location for cooling
  • the outflow part of the wall of the guide duct can be placed at a distance of preferably between 100-300 cm, more preferably between 150-250 cm, and still more preferably substantially 200 cm above the at least one location for cooling.
  • This distance of for instance 100, 125, 150, 175, 200, 225, 250, 275, 300 cm is found to enable a good distribution of the cooled airflow over the location for cooling, while in respect of its height the device is also suitable for placing in an existing space.
  • the device in a further embodiment of the device according to the invention, wherein the outflow part of the wall of the guide duct can be placed above the at least one location for cooling, also comprises a frame with which the outflow part of the wall of the guide duct can be placed above the at least one location for cooling.
  • This measure for instance enables simple placing of the device above the desired location for cooling.
  • the device can thus be embodied for instance as a displaceable unit which can be easily placed in an existing space in order to supply cooled air to a specific location in this space.
  • the guide duct is suspended in the frame by means of a mounting extending between the guide duct and the frame.
  • a mounting extending between the guide duct and the frame.
  • the mounting has a substantially airtight part extending from the wall of the guide duct over a distance of preferably at least 10 cm, more preferably at least 20 cm, and still more preferably at least 30 cm in the direction of the frame.
  • This measure for instance makes it possible, when a relatively cold airflow is supplied to a location for cooling, to avoid warm air present above the outflow part of the guide duct being entrained by the airflow.
  • the efficiency of the device can hereby be further improved, this making the device more energy-efficient .
  • the cooling unit comprises a suction mouthpiece for drawing in an airflow for cooling, which suction mouthpiece can be placed under the outflow part of the wall of the guide duct.
  • This measure enables at least partial re-cooling in the cooling unit of a cooled airflow supplied to the location for cooling.
  • the cooled air which has flowed out of the outflow part of the wall of the guide duct placed above the location for cooling will move downward under the influence of gravitational force and is then drawn in again by the cooling unit under the outflow part.
  • the temperature of this air is cooler than the ambient air, whereby only a small measure of additional cooling is necessary, this making the device more energy- efficient .
  • the wall of the guide duct is of textile. This measure makes it possible for the airflow to leave the guide duct almost silently, thereby maintaining the comfort of the person making use of the location.
  • the outflow speed of the air of the cooled airflow from the outflow part of the wall of the guide duct is preferably between 0.04 - 0.12 m/s, more preferably between 0.06 - 0.10 m/s, and still more
  • the air permeability of the outflow part of the wall is preferably between 200 - 1400 m 3 /m 2 /hour at a static pressure of 120 Pa, more preferably between 400 - 1200 m 3 /m 2 /hour and still more preferably between 600 - 1000 m 3 /m 2 /hour.
  • This air permeability of the outflow part of the wall of the guide duct of for instance 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200,
  • the air permeability of the rest of the wall is preferably between 10 - 80 m 3 /m 2 /hour at a static pressure of 120 Pa, more preferably between 15 - 70 m 3 /m 2 /hour and still more preferably between 20 - 60
  • the invention also relates to a method for supplying a cooled airflow to at least one location for cooling using an above described device.
  • a favourable embodiment of the method according to the invention comprises the step of placing the outflow part of the wall of the air-permeable guide duct above the at least one location.
  • FIG. 1 shows a perspective view of an embodiment of a device according to the invention
  • FIG. 2 shows a perspective view of an alternative embodiment of the device of figure 1;
  • FIG. 3 shows a perspective view of the application of the device of figure 2 for supplying a cooled airflow to a workplace for cooling;
  • FIG. 4 shows a schematic view of the operation of an embodiment of the device according to the invention.
  • FIG. 5a and 5b show a schematic cross- sectional view of an embodiment of the guide duct of the device of figure 4.
  • FIG. 6a and 6b show a schematic cross- sectional view of an alternative embodiment of the guide duct of figures 5a and 5b.
  • Figure 1 shows a device 1 for supplying an airflow to a location 2 for cooling. Shown in device 1 is a cooling unit 3 which supports on ground surface 4 of location 2 for cooling. Cooling unit 3 has a suction mouthpiece 5 and an outlet mouthpiece 6. Via suction mouthpiece 5 cooling unit 3 draws in air from the location 2 for cooling in the
  • An outflow part 8a of wall 8 of guide duct 7 placed above the location 2 for cooling has a first air permeability.
  • a guide part 8b of wall 8 of guide duct 7 has a second air
  • Figure 1 also shows that outflow part 8a of wall 8 of guide duct 7 is placed above the location 2 for cooling by means of a frame 9, wherein guide duct 7 is suspended in frame 9 by means of a mounting 10 extending between guide duct 7 and frame 9.
  • Wall 8 of guide duct 7 is for instance of textile.
  • Web 10 is for instance also of textile so that web 10 and guide duct 7 for instance appear to form an integral whole. If desired, device 1 can be displaced over ground surface 4 in simple manner in order to thus place outflow part 8a above another location for cooling.
  • FIG 2 shows an alternative embodiment of device 1 of figure 1.
  • This device 11 is also shown with a cooling unit 3 which blows out cooled air in the form of a cooled airflow into a guide duct 7 with a wall 8 with an outflow part 8a and a guide part 8b.
  • outflow part 8a of wall 8 of guide duct 7 is also placed above the location 2 for cooling by means of a frame 9, wherein guide duct 7 is suspended in frame 9 by means of a mounting 10 extending between guide duct 7 and frame 9.
  • frame 9 forms an arc so that guide duct 7 is also arcuate.
  • Figure 3 shows device 11 of figure 2, wherein outflow part 8a of wall 8 of guide duct 7 is placed above an office chair 12 so that cooled air flowing out of outflow part 8a of wall 8 moves downward in the direction of arrow C to desk chair 12.
  • Cooling unit 3 has a suction mouthpiece 5 and an outlet mouthpiece 6. Cooling unit 3 draws in air in the direction of arrow D via suction mouthpiece 5. The indrawn air is then cooled by means of cooling unit 3 and blown out via outlet mouthpiece 6 as a cooled airflow in the direction of arrow E into guide duct 7.
  • guide duct 7 guides the cooled airflow to two locations 2a and 2b for cooling.
  • the whole wall 8 of guide duct 7 is permeable to the cooled air of the airflow so that cooled air of the cooled airflow which is guided to the locations 2 for cooling flows out substantially everywhere on wall 8 of guide duct 7, as shown by the airflows shown as zigzag arrows F and G.
  • An outflow part 8a of wall 8 of guide duct 7 placed above each location 2a and 2b for cooling has a first air permeability.
  • a guide part 8b of wall 8 of guide duct 7 has a second air
  • the cooled air of the cooled airflow is guided mainly along guide part 8b of wall 8 so that relatively little air from the cooled airflow flows through guide part 8b of wall 8 (indicated with the relatively short zigzag arrows F) , and the cooled air of the cooled airflow flows out mainly at outflow part 8a of wall 8 placed above the locations 2a and 2b for cooling (indicated with the relatively long zigzag arrows G) .
  • suction mouthpiece 5 of cooling unit 3 is placed under outflow part 8a of wall 8, or downstream relative to the cooled air flowing out of this outflow part 8a (zigzag arrows G ⁇ , the air which has accumulated, and which has by now warmed up to some extent, is drawn in again by cooling unit 3 via suction mouthpiece 5 in the direction of arrow D and re-cooled.
  • outflow part 8a is placed at a distance I above the ground surface of the locations 2a and 2b for cooling.
  • Figure 4 shows that device 13 supplies cooled air to two locations for cooling.
  • the device according to the invention can supply cooled air to one or more than two locations for cooling.
  • Figures 5a and 5b show a schematic cross-sectional view of an embodiment of guide duct 7 of device 13 of figure 4.
  • Figure 5a shows a cross-section at the position of the sections A of guide duct 7 of figure 4.
  • Figure 5b shows a cross-section at the position of sections B of guide duct 7 of figure 4.
  • Figures 5a and 5b show that guide duct 7 is suspended in frame 9 by means of a mounting 10 extending between guide duct 7 and frame 9.
  • Mounting 10 has a
  • substantially airtight part 10a extending from wall 8 of guide duct 7 through a distance J in the direction of frame 9.
  • Figure 5a shows that at the position of section A wall 8 of guide duct 7 is formed wholly by guide part 8a of wall 8, so that in section A relatively little air of the cooled airflow flows through guide part 8b of wall 8 (indicated with relatively short zigzag arrows F) .
  • Figure 5b shows that at the position of sections B of guide duct 7 the upper part of wall 8 is formed by guide part 8b of wall 8, while the lower part of wall 8 is formed by outflow part 8a of wall 8 of guide duct 7, so that relatively little air from the cooled airflow flows through guide part 8b of wall 8 from the upper part of wall 8 (indicated with the relatively short zigzag arrows F) , and a relatively large amount of air of the cooled airflow flows through guide part 8a of wall 8 from the lower part of wall 8 (indicated with the relatively long zigzag arrows G) .
  • Figures 5a and 5b also show that the substantially airtight part 10a of mounting 10 avoids relatively warm air from the vicinity 14 being entrained in the direction of arrow K with the cooled air flowing out of outflow part 8a of wall 8.
  • Figure 5b also shows that part of the cooled air flowing out of outflow part 8a (indicated with the relatively long zigzag arrows G) is deflected under the influence of gravitational force.
  • Figures 6a and 6b show a schematic cross-sectional view of an alternative embodiment of the guide duct of figures 5a and 5b.
  • the cross- section of the guide duct has a half-round form instead of a round form as in the embodiment as shown in figures 5a and 5b.
  • cross-section of guide duct 7 of figures 5a, 5b, 6a and 6b can also take a different form, such as square, rectangular, triangular etc.
  • 5b, 6a and 6b can also extend over only a part of the distance J from wall 8 in the direction of frame 9.

Abstract

The present invention relates to a device for supplying a cooled airflow to at least one location for cooling. The present invention also relates to a method for supplying a cooled airflow to this at least one location for cooling using such a device.

Description

DEVICE AND METHOD FOR SUPPLYING A COOLED AIRFLOW TO AT LEAST ONE LOCATION FOR COOLING
The present invention relates to a device for supplying a cooled airflow to at least one location for cooling. The present invention also relates "to supplying a cooled airflow to at least one location for cooling using such a device.
In regions with a warm climate it is usual to provide the spaces where people spend time with an air conditioning with which the air in the space can be
conditioned, generally cooled, as required by persons present in the space. This cooling of the air in said spaces entails a considerable energy consumption. There is
therefore a need for a device which enhances comfort and which is also energy-efficient.
The device according to the invention comprises a cooling unit for generating a cooled airflow; and a guide duct for guiding the cooled airflow from the cooling unit to the at least one location for cooling, wherein substantially the whole wall of the guide duct is permeable to the air of the cooled airflow, an outflow part of the wall of the guide duct has a first air permeability, and a guide part of the wall has a second air permeability, wherein the outflow part of the wall can be placed close to the at least one location for cooling and the air permeability of the outflow part of the wall is higher than the air permeability of the guide part of the wall .
This device makes it possible, by means of the placing of the outflow part of the wall of the guide duct close to a specific location for cooling within a space, for instance a bed or a workplace, to concentrate the cooled airflow on this specific location. This makes the device according to the invention energy-efficient compared to a device with a supplied airflow which cannot be concentrated on the specific location. Because not only the outflow part of the wall of the guide duct but substantially the whole wall is moreover permeable to the air of the cooled airflow, it is possible here to avoid undesirable effects of the guiding of the cooled airflow through the guide duct, such as condensation on the wall of the guide duct. Such
condensation can for instance reduce comfort when the condensation falls from the wall onto the bed, the
workplace, or even onto the persons making use thereof. Such condensation is a problem particularly in regions with a relatively high air humidity.
In a favourable embodiment of the device according to the invention the outflow part of the wall of the guide duct can be placed above the at least one location for cooling. This measure makes it possible to use gravitational force to allow the relatively cold air to move downward to the location for cooling and the persons making use thereof . This has the advantage that the outflow speed of the cooled air of the airflow from the outflow part of the wall of the guide duct can be lower, whereby the noise generated by the airflow as it passes through the wall of the guide duct, and thereby the nuisance it causes, is reduced while the persons moreover experience the comfort of a descending cool air.
In a further advantageous embodiment of the device according to the invention the temperature of the cooled airflow is at least 2°C lower than the temperature of the ambient air. The temperature of the cooled airflow which is at least 2°C lower relative to the temperature of the ambient air ensures that the cooled air moves downward to the location for cooling by means of gravitational force, wherein the person making use of the location experiences a pleasant cooling without draught .
In a further favourable embodiment of the device, wherein the outflow part of the wall of the guide duct can be placed above the at least one location for cooling, the outflow part of the wall of the guide duct can be placed at a distance of preferably between 100-300 cm, more preferably between 150-250 cm, and still more preferably substantially 200 cm above the at least one location for cooling. This distance of for instance 100, 125, 150, 175, 200, 225, 250, 275, 300 cm is found to enable a good distribution of the cooled airflow over the location for cooling, while in respect of its height the device is also suitable for placing in an existing space.
In a further embodiment of the device according to the invention, wherein the outflow part of the wall of the guide duct can be placed above the at least one location for cooling, the device also comprises a frame with which the outflow part of the wall of the guide duct can be placed above the at least one location for cooling. This measure for instance enables simple placing of the device above the desired location for cooling. The device can thus be embodied for instance as a displaceable unit which can be easily placed in an existing space in order to supply cooled air to a specific location in this space.
In a favourable embodiment hereof the guide duct is suspended in the frame by means of a mounting extending between the guide duct and the frame. This measure makes it possible for instance to physically separate the guide duct from the frame and thus avoid condensation on the frame or on the wall of the guide duct when a relatively cold airflow is supplied. In a further embodiment the mounting has a substantially airtight part extending from the wall of the guide duct over a distance of preferably at least 10 cm, more preferably at least 20 cm, and still more preferably at least 30 cm in the direction of the frame. This measure for instance makes it possible, when a relatively cold airflow is supplied to a location for cooling, to avoid warm air present above the outflow part of the guide duct being entrained by the airflow. The efficiency of the device can hereby be further improved, this making the device more energy-efficient .
In a further favourable embodiment of the device according to the invention the cooling unit comprises a suction mouthpiece for drawing in an airflow for cooling, which suction mouthpiece can be placed under the outflow part of the wall of the guide duct. This measure enables at least partial re-cooling in the cooling unit of a cooled airflow supplied to the location for cooling. The cooled air which has flowed out of the outflow part of the wall of the guide duct placed above the location for cooling will move downward under the influence of gravitational force and is then drawn in again by the cooling unit under the outflow part. Although it will be warmed to some extent before it is drawn in again, the temperature of this air is cooler than the ambient air, whereby only a small measure of additional cooling is necessary, this making the device more energy- efficient .
In a further favourable embodiment of the device according to the invention the wall of the guide duct is of textile. This measure makes it possible for the airflow to leave the guide duct almost silently, thereby maintaining the comfort of the person making use of the location.
In a further favourable embodiment of the device according to the invention the outflow speed of the air of the cooled airflow from the outflow part of the wall of the guide duct is preferably between 0.04 - 0.12 m/s, more preferably between 0.06 - 0.10 m/s, and still more
preferably substantially 0.08 m/s. These outflow speeds of for instance 0.04; 0.05; 0.06; 0.07; 0.08; 0.09; 0.10; 0.11 and 0.12 m/s, together with the acceleration exerted on the cooled air by gravitational force, ensures that the speed of the airflow is so low when it reaches a person making use of the location for cooling that this person experiences a comfort-enhancing cooling without the airflow being
perceived here as draughty.
In a further f vourable embodiment of the device according to the invention the air permeability of the outflow part of the wall is preferably between 200 - 1400 m3/m2/hour at a static pressure of 120 Pa, more preferably between 400 - 1200 m3/m2/hour and still more preferably between 600 - 1000 m3/m2/hour. This air permeability of the outflow part of the wall of the guide duct of for instance 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200,
1300, 1440 m3/m2/hour at a static pressure of 120 Pa has been found highly suitable for realizing a comfort-enhancing device, and particularly for realizing the above stated outflow speeds of the air of the airflow flowing out of the outflow part of the guide duct .
In a further favourable embodiment of the device according to the invention the air permeability of the rest of the wall is preferably between 10 - 80 m3/m2/hour at a static pressure of 120 Pa, more preferably between 15 - 70 m3/m2/hour and still more preferably between 20 - 60
m3/m2/hour. This air permeability of the rest of the wall of the guide duct of for instance 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70 m3/m2/hour at a static pressure of 120 Pa has been found highly suitable for effectively avoiding condensation on the wall of the guide duct.
The invention also relates to a method for supplying a cooled airflow to at least one location for cooling using an above described device.
A favourable embodiment of the method according to the invention comprises the step of placing the outflow part of the wall of the air-permeable guide duct above the at least one location.
The present invention will be further elucidated hereinbelow on the basis of exemplary embodiments which are shown in the accompanying figures. These are non- limitative exemplary embodiments.
In the figures:
- figure l shows a perspective view of an embodiment of a device according to the invention;
- figure 2 shows a perspective view of an alternative embodiment of the device of figure 1;
- figure 3 shows a perspective view of the application of the device of figure 2 for supplying a cooled airflow to a workplace for cooling;
- figure 4 shows a schematic view of the operation of an embodiment of the device according to the invention; and
- figures 5a and 5b show a schematic cross- sectional view of an embodiment of the guide duct of the device of figure 4; and
- figures 6a and 6b show a schematic cross- sectional view of an alternative embodiment of the guide duct of figures 5a and 5b.
Figure 1 shows a device 1 for supplying an airflow to a location 2 for cooling. Shown in device 1 is a cooling unit 3 which supports on ground surface 4 of location 2 for cooling. Cooling unit 3 has a suction mouthpiece 5 and an outlet mouthpiece 6. Via suction mouthpiece 5 cooling unit 3 draws in air from the location 2 for cooling in the
direction of arrow D. The indrawn air is then cooled by means of cooling unit 3 and blown out via outlet mouthpiece 6 as a cooled airflow into guide duct 7. Guide duct 7 guides the cooled airflow to the location 2 for cooling. The whole wall 8 of guide duct 7 is permeable to the cooled air of the airflow so that cooled air from the cooled airflow being guided toward the location 2 for cooling flows out
substantially everywhere on wall 8 of guide duct 7. An outflow part 8a of wall 8 of guide duct 7 placed above the location 2 for cooling has a first air permeability. A guide part 8b of wall 8 of guide duct 7 has a second air
permeability. Because the air permeability of outflow part 8a of wall 8 of guide duct 7 is higher than the air
permeability of guide part 8b of wall 8 of guide duct 7, the cooled air from the cooled airflow is guided mainly along guide part 8b of wall 8 and the cooled air of the cooled airflow flows out mainly at outflow part 8a of wall 8. The cooled air flowing out of outflow part 8a of wall 8 moves downward to the location 2 for cooling in the direction of arrow C as a result of the outflow speed and under the influence of gravitational force. This operation of device 1 is further elucidated hereinbelow with reference to figure 4.
Figure 1 also shows that outflow part 8a of wall 8 of guide duct 7 is placed above the location 2 for cooling by means of a frame 9, wherein guide duct 7 is suspended in frame 9 by means of a mounting 10 extending between guide duct 7 and frame 9. Wall 8 of guide duct 7 is for instance of textile. Web 10 is for instance also of textile so that web 10 and guide duct 7 for instance appear to form an integral whole. If desired, device 1 can be displaced over ground surface 4 in simple manner in order to thus place outflow part 8a above another location for cooling.
Figure 2 shows an alternative embodiment of device 1 of figure 1. This device 11 is also shown with a cooling unit 3 which blows out cooled air in the form of a cooled airflow into a guide duct 7 with a wall 8 with an outflow part 8a and a guide part 8b. In this device 11 outflow part 8a of wall 8 of guide duct 7 is also placed above the location 2 for cooling by means of a frame 9, wherein guide duct 7 is suspended in frame 9 by means of a mounting 10 extending between guide duct 7 and frame 9. In device 11 shown in figure 2 however, frame 9 forms an arc so that guide duct 7 is also arcuate. Figure 3 shows device 11 of figure 2, wherein outflow part 8a of wall 8 of guide duct 7 is placed above an office chair 12 so that cooled air flowing out of outflow part 8a of wall 8 moves downward in the direction of arrow C to desk chair 12.
The operating principle of a device according to the invention, including devices 1 and 11 of figures 1-3, is further elucidated hereinbelow on the basis of the device 13 shown schematically in figure 4.
Device 13 is shown with a cooling unit 3. Cooling unit 3 has a suction mouthpiece 5 and an outlet mouthpiece 6. Cooling unit 3 draws in air in the direction of arrow D via suction mouthpiece 5. The indrawn air is then cooled by means of cooling unit 3 and blown out via outlet mouthpiece 6 as a cooled airflow in the direction of arrow E into guide duct 7. In this exemplary embodiment guide duct 7 guides the cooled airflow to two locations 2a and 2b for cooling. The whole wall 8 of guide duct 7 is permeable to the cooled air of the airflow so that cooled air of the cooled airflow which is guided to the locations 2 for cooling flows out substantially everywhere on wall 8 of guide duct 7, as shown by the airflows shown as zigzag arrows F and G. An outflow part 8a of wall 8 of guide duct 7 placed above each location 2a and 2b for cooling has a first air permeability. A guide part 8b of wall 8 of guide duct 7 has a second air
permeability. Because the air permeability of outflow part 8a of wall 8 of guide duct 7 is higher than the air
permeability of guide part 8b of wall 8 of guide duct 7, the cooled air of the cooled airflow is guided mainly along guide part 8b of wall 8 so that relatively little air from the cooled airflow flows through guide part 8b of wall 8 (indicated with the relatively short zigzag arrows F) , and the cooled air of the cooled airflow flows out mainly at outflow part 8a of wall 8 placed above the locations 2a and 2b for cooling (indicated with the relatively long zigzag arrows G) . Because substantially the whole wall 8 is permeable to the cooled air of the cooled airflow blown into guide duct 7, the relatively warm air in the vicinity 14 of wall 8 of guide duct 7 is kept at a distance so that this relatively warm ambient air cannot condense against wall 8 of guide duct 7.
The cooled air flowing out of outflow part 8a of wall 8 moves downward to locations 2a and 2b for cooling in the direction of arrow C as a result of the outflow speed and under the influence of gravitational force and
accumulates on ground surface 15, as indicated with hatching H. Because suction mouthpiece 5 of cooling unit 3 is placed under outflow part 8a of wall 8, or downstream relative to the cooled air flowing out of this outflow part 8a (zigzag arrows G} , the air which has accumulated, and which has by now warmed up to some extent, is drawn in again by cooling unit 3 via suction mouthpiece 5 in the direction of arrow D and re-cooled.
As shown in figure 4, outflow part 8a is placed at a distance I above the ground surface of the locations 2a and 2b for cooling.
Figure 4 shows that device 13 supplies cooled air to two locations for cooling. Alternatively, the device according to the invention can supply cooled air to one or more than two locations for cooling.
Figures 5a and 5b show a schematic cross-sectional view of an embodiment of guide duct 7 of device 13 of figure 4. Figure 5a shows a cross-section at the position of the sections A of guide duct 7 of figure 4. Figure 5b shows a cross-section at the position of sections B of guide duct 7 of figure 4. Figures 5a and 5b show that guide duct 7 is suspended in frame 9 by means of a mounting 10 extending between guide duct 7 and frame 9. Mounting 10 has a
substantially airtight part 10a extending from wall 8 of guide duct 7 through a distance J in the direction of frame 9. Figure 5a shows that at the position of section A wall 8 of guide duct 7 is formed wholly by guide part 8a of wall 8, so that in section A relatively little air of the cooled airflow flows through guide part 8b of wall 8 (indicated with relatively short zigzag arrows F) . Figure 5b shows that at the position of sections B of guide duct 7 the upper part of wall 8 is formed by guide part 8b of wall 8, while the lower part of wall 8 is formed by outflow part 8a of wall 8 of guide duct 7, so that relatively little air from the cooled airflow flows through guide part 8b of wall 8 from the upper part of wall 8 (indicated with the relatively short zigzag arrows F) , and a relatively large amount of air of the cooled airflow flows through guide part 8a of wall 8 from the lower part of wall 8 (indicated with the relatively long zigzag arrows G) . Figures 5a and 5b also show that the substantially airtight part 10a of mounting 10 avoids relatively warm air from the vicinity 14 being entrained in the direction of arrow K with the cooled air flowing out of outflow part 8a of wall 8. Figure 5b also shows that part of the cooled air flowing out of outflow part 8a (indicated with the relatively long zigzag arrows G) is deflected under the influence of gravitational force.
Figures 6a and 6b show a schematic cross-sectional view of an alternative embodiment of the guide duct of figures 5a and 5b. In this alternative embodiment the cross- section of the guide duct has a half-round form instead of a round form as in the embodiment as shown in figures 5a and 5b.
The cross-section of guide duct 7 of figures 5a, 5b, 6a and 6b can also take a different form, such as square, rectangular, triangular etc.
The airtight part of mounting 10 of figures 5a,
5b, 6a and 6b can also extend over only a part of the distance J from wall 8 in the direction of frame 9.

Claims

1. Device for supplying a cooled airflow to at least one location for cooling, comprising:
- a cooling unit for generating a cooled airflow; and
- a guide duct for guiding the cooled airflow from the cooling unit to the at least one location for cooling; wherein
- substantially the whole wall of the guide duct is permeable to the air of the cooled airflow;
- an outflow part of the wall of the guide duct has a first air permeability, and
- a guide part of the wall has a second air permeability, wherein
- the outflow part of the wall can be placed close to the at least one location for cooling, and
- the air permeability of the outflow part of the wall is higher than the air permeability of the guide part of the wall.
2. Device as claimed in the foregoing claim, wherein
- the outflow part of the wall of the guide duct can be placed above the at least one location for cooling.
3. Device as claimed in any of the foregoing claims, wherein
- the temperature of the cooled airflow is at least 2°C lower than the temperature of the ambient air.
4. Device as claimed in claim 2 or 3 , wherein
- the outflow part of the wall of the guide duct can be placed at a distance of preferably between 100-300 cm, more preferably between 150-250 cm, and still more preferably substantially 200 cm above the at least one location for cooling.
5. Device as claimed in any of the claims 2 to 4 , wherein
- the device also comprises a frame with which the outflow part of the wall of the guide duct can be placed above the at least one location for cooling.
6. Device as claimed in claim 5, wherein
- the guide duct is suspended in the frame by means of a mounting extending between the guide duct and the frame .
7. Device as claimed in claim 6, wherein
- the mounting has a substantially airtight part extending from the wall of the guide duct over a distance of preferably at least 10 cm, more preferably at least 20 cm, and still more preferably at least 30 cm in the direction of the frame.
8. Device as claimed in any of the foregoing claims, wherein
- the cooling unit comprises a suction mouthpiece for drawing in an airflow for cooling, which suction mouthpiece can be placed under the outflow part of the wall of the guide duct.
9. Device as claimed in any of the foregoing claims, wherein
- the wall of the guide duct is of textile .
10. Device as claimed in any of the foregoing claims , wherein - the outflow speed of the air of the cooled airflow from the outflow part of the wall of the guide duct is preferably between 0.04 - 0.12 m/s, more preferably between 0.06 - 0.10 m/s, and still more preferably
substantially 0.08 m/s.
11. Device as claimed in any of the foregoing claims, wherein
- the air permeability of the outflow part of the wall is preferably between 200 - 1400 m3/m2/hour at a static pressure of 120 Pa, more preferably between 400 - 1200 m3/m2/hour and still more preferably between 600 - 1000 m3/m/hour .
12. Device as claimed in any of the foregoing claims, wherein
- the air permeability of the guide part of the wall is preferably between 10 - 80 m3/m/hour at a static pressure of 120 Pa, more preferably between 15 - 70 m3/m2/hour and still more preferably between 20 - 60 m3/m2/hour.
13. Method for supplying an airflow to at least one location using a device as claimed in any of the claims 1-12.
14. Method as claimed in claim 13, comprising the step of placing the outflow part of the wall of the air- permeable guide duct above the at least one location for cooling.
EP10747326A 2009-09-03 2010-08-18 Device and method for supplying a cooled airflow to at least one location for cooling Withdrawn EP2473789A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1037249A NL1037249C2 (en) 2009-09-03 2009-09-03 DEVICE AND METHOD FOR SUPPLYING TO AT LEAST ONE LOCATION TO BE COOLED OF A COOLED AIRFLOW.
PCT/NL2010/050518 WO2011028101A1 (en) 2009-09-03 2010-08-18 Device and method for supplying a cooled airflow to at least one location for cooling

Publications (1)

Publication Number Publication Date
EP2473789A1 true EP2473789A1 (en) 2012-07-11

Family

ID=41794666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10747326A Withdrawn EP2473789A1 (en) 2009-09-03 2010-08-18 Device and method for supplying a cooled airflow to at least one location for cooling

Country Status (6)

Country Link
US (1) US20120171946A1 (en)
EP (1) EP2473789A1 (en)
JP (1) JP2013504030A (en)
CN (1) CN102575857A (en)
NL (1) NL1037249C2 (en)
WO (1) WO2011028101A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9435554B2 (en) * 2012-02-17 2016-09-06 Athletic Recovery Zone, Llc Outdoor heating or cooling seating system
CN102788409A (en) * 2012-07-29 2012-11-21 崔丽荣 Air delivery device for air conditioning

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5769708A (en) * 1996-10-22 1998-06-23 Rite-Hite Corporation Fabric air dispersion system with air dispersing panels

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3505989A (en) * 1967-05-29 1970-04-14 Johnson & Johnson Controlled environmental apparatus
US3511162A (en) * 1969-02-20 1970-05-12 Johnson & Johnson Apparatus and method for isolating a patient zone
US3776121A (en) * 1972-06-23 1973-12-04 A Truhan Controlled environmental apparatus for industry
DE2525917C2 (en) * 1975-06-11 1983-11-10 Schmidt Reuter Ingenieurgesellschaft mbH & Co KG, 5000 Köln Arrangement for ventilating or air-conditioning lounges
EP0259320A1 (en) * 1985-04-26 1988-03-16 M.T.D. Medical Technology And Development Limited Method and means for supplying clean air to an operating room
US4830904A (en) * 1987-11-06 1989-05-16 James River Corporation Porous thermoformable heat sealable nonwoven fabric
US5232401A (en) * 1991-04-23 1993-08-03 Kawasaki Steel Corporation Air supplying apparatus
JPH0566423U (en) * 1992-02-21 1993-09-03 株式会社日立ホームテック Air conditioner
JPH06213503A (en) * 1993-01-13 1994-08-02 Taikisha Ltd Air conditioning apparatus for low temperature factory for food, meat and the like
AU702395B2 (en) * 1996-10-07 1999-02-18 Jc Associates Co., Ltd. Ventilator for use with vehicle seat
NL1013242C2 (en) * 1999-10-08 2001-04-23 Joule Venture Holding B V Air duct.
JP2001116334A (en) * 1999-10-20 2001-04-27 Ohbayashi Corp Air outlet duct
US20050051914A1 (en) * 2003-09-08 2005-03-10 Gordon Larry R. Control for evaporative cooling apparatus
US7037188B2 (en) * 2003-04-08 2006-05-02 Halo Innovations, Inc. Systems for delivering conditioned air to personal breathing zones
US20050121530A1 (en) * 2003-12-04 2005-06-09 Thomas Song System defined as thermoister for monitoring, controlling and adjusting a sleeper's environmental conditions of the space above entire bed surface
JP4659536B2 (en) * 2005-07-04 2011-03-30 株式会社イノアックコーポレーション Duct member and duct comprising the same
US7421911B2 (en) * 2005-12-20 2008-09-09 Desrochers Eric M Duct probe assembly system for multipoint air sampling
US9518756B2 (en) * 2006-11-15 2016-12-13 Rite-Hite Holding Corporation External rib cage for an inflatable air duct
JP2009041879A (en) * 2007-08-10 2009-02-26 Nippon Oil Corp Filter duct and air conditioning system
CN201162892Y (en) * 2007-08-28 2008-12-10 杜肯索斯(上海)空气分布系统有限公司 Fabric wind pipe with thin film coating

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5769708A (en) * 1996-10-22 1998-06-23 Rite-Hite Corporation Fabric air dispersion system with air dispersing panels

Also Published As

Publication number Publication date
JP2013504030A (en) 2013-02-04
US20120171946A1 (en) 2012-07-05
NL1037249C2 (en) 2011-03-08
WO2011028101A1 (en) 2011-03-10
CN102575857A (en) 2012-07-11

Similar Documents

Publication Publication Date Title
US20100295339A1 (en) Air-conditioned seat cushion
ATE489877T1 (en) AIR CONDITIONED SEAT AND AIR CONDITIONING SYSTEM USING SAME
JP2007520288A (en) Vehicle seat
JP2008533414A (en) Variable temperature cushion and heat pump
JP2010052494A (en) Seat blower
WO2006045577A1 (en) Vehicle seat
US20120171946A1 (en) Device and method for supplying a cooled airflow to at least one location for cooling
JP2008528364A (en) Vehicle seat with ventilation device
CN103042960A (en) Arrangement structure of seat ventilation device
JP6493997B2 (en) Air conditioner
JP6414891B2 (en) Desk with air conditioner
JP2015150968A (en) vehicle seat
KR101501077B1 (en) Device for seat lower ventilation of vehicle
JP2007202682A (en) Bed with air conditioner
CN106247450B (en) A kind of vertical air conditioner and wind deflector slide-and-guide supporting mechanism
CN205273238U (en) Multi -function vehicle pad
CN203028648U (en) Electric chair and ventilation system for electric chair
US20150274046A1 (en) Seat climate control assembly and seat employing the same
JP2012026705A (en) Small humidifier
JP6536970B2 (en) Air conditioner
JP6309403B2 (en) Air-conditioning chair with suction blow-out
JP2011056173A (en) Chair
WO2010016759A2 (en) Device for supplying an airflow to a bed, and a bed provided therewith
JP4385870B2 (en) Air conditioning method and sleep capsule using the same
JP2019105401A (en) Airflow control device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20120312

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

17Q First examination report despatched

Effective date: 20180918

18W Application withdrawn

Effective date: 20180925