EP2960591A1 - Luftverteiler mit automatischer Temperatureinstellung - Google Patents

Luftverteiler mit automatischer Temperatureinstellung Download PDF

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Publication number
EP2960591A1
EP2960591A1 EP14382248.4A EP14382248A EP2960591A1 EP 2960591 A1 EP2960591 A1 EP 2960591A1 EP 14382248 A EP14382248 A EP 14382248A EP 2960591 A1 EP2960591 A1 EP 2960591A1
Authority
EP
European Patent Office
Prior art keywords
air
temperature adjustment
diffuser
automatic temperature
thermal fuse
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Withdrawn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
EP14382248.4A
Other languages
English (en)
French (fr)
Inventor
Jose Tomas Susarte Torrijos
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.)
Koolair SA
Original Assignee
Koolair SA
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 Koolair SA filed Critical Koolair SA
Priority to EP14382248.4A priority Critical patent/EP2960591A1/de
Publication of EP2960591A1 publication Critical patent/EP2960591A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/142—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using pivoting blades with intersecting axles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/76—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by means responsive to temperature, e.g. bimetal springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • 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
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/144—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with thermoactuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/14—Details or features not otherwise provided for mounted on the ceiling

Definitions

  • the present invention corresponds to the technical field of air diffusers that are used in air conditioning systems, specifically to air diffusers with automatic temperature adjustment, preferably intended for being placed in the ceiling.
  • Air conditioning systems improving the temperature conditions of a room by means of diffusing cold air during hot weather or diffusing hot air during cold weather are widely used today.
  • Ceiling diffusers are commonly used in the case of large spaces, sometimes along with wall diffusers, and they are placed in specific positions to be able to more effectively cover the entire space to be conditioned.
  • the projected air is hot air
  • said hot air must be projected with an orientation towards lower positions so that it reaches such positions more easily and then moves upward due to the lower weight thereof, displacing the cold air downwards and so forth until achieving heat exchange that allows raising the temperature of the room. Therefore, an orientation close to the vertical is of interest in this case.
  • air conditioning systems generally provide systems for adjusting the direction of airflow so that they are more effective depending on the time of year in which they work.
  • said adjustment is manual, so in said cases the adjustment may be rather complicated since there is a need to perform same at least twice a year when summer or winter starts. In addition to that, the drawback of human factor exists, since the adjustment can be erroneous or imprecise as it is performed manually.
  • Said diffuser with a circular plan configuration has a diffusion group made up of concentric frustoconical elements having circular separations for releasing air between every two consecutive elements, furthermore including an automatic actuating mechanism made up of a thermo-expandable element enabled to drive in that displacement the group of frustoconical elements configuring the air jet outlet.
  • thermo-expandable element contracts, causing the release of said cold air through the circular separations existing between the frustoconical elements, with an orientation identical to that of the frustoconical surfaces between which it runs.
  • thermo-expandable element expands due to the release of hot air
  • the assembly of frustoconical diffusion elements moves upward, the outlet edges of the different concentric frustoconical elements being located at a higher level than that of the perimetral edge of the casing, which causes the air to receive a last orientation due to the final cylindrical section of the casing, as it leaves through the frustoconical elements, producing a much more vertical jet direction.
  • thermo-expandable element when the thermo-expandable element is compressed, the cold air leaves with an inclination fairly distant from the horizontal, whereby the reach of this jet both in height and in distance is fairly reduced, resulting in low effectiveness and requiring a greater number of diffusers to be able to obtain a more effective and quick result.
  • thermo-expandable element expands, with the diffusion assembly raised, i.e., in the position in which hot air is discharged, since it is not capable of vertically penetrating the room displacing the cold air located in the lower portion of the room.
  • This is due to the fact that said air always follows the same inclination as the frustoconical elements.
  • the portions of the jet leaving through the outermost frustoconical elements hit the casing and change direction increasing verticality, they do not completely achieve same, turbulences reducing the effectiveness of the air jet also appearing, causing the jet to lose direction as well as its speed of release.
  • the air diffuser with automatic temperature adjustment for air conditioning systems of the invention preferably intended for being placed in ceilings, solves the problems of the art mentioned above and assures correct cold and hot air distribution, assuring in the latter case correct vertical penetration.
  • the diffuser of the invention comprises an outer casing having in the air discharge zone a central support and a series of orientable fins each of them connected at one end to said central support and at another end to the inner surface of the casing.
  • the diffuser further comprises a mechanism for automatic temperature adjustment capable of generating a movement depending on the temperature changes and transmission means for transmitting said movement to the orientable fins, such that these fins adopt a substantially horizontal inclination when the diffuser discharges cold air or a substantially vertical inclination when the diffuser discharges hot air.
  • the direction of the discharged air is thus modified with the diffuser without having to move the entire inner assembly of the diffuser, but rather the orientable fins alone, while at the same time an improved and more effective air orientation is achieved as a result of the structure and arrangement thereof.
  • the orientable fins are oriented with an inclination close to the horizontal increasing the height of the air jet, achieving greater reach of the projected air in the room. This generates greater effectiveness since the cold air of each diffuser will displace the hot air of a larger room surface.
  • the orientable fins are arranged with a virtually vertical inclination, so the jet also moves vertically downward, without interferences that generate turbulences, losses or direction changes, increasing the penetrability thereof and allowing the hot air to reach the lowest levels, generating heat exchange with the cold air in a quicker and more effective manner.
  • the air diffuser 1 with automatic temperature adjustment for air conditioning systems and intended for being placed preferably in the ceiling, proposed herein, has an outer casing 2 having a circular section with a series of orientable fins 3 in a radial arrangement and a central support 4 in the air discharge zone.
  • the diffuser comprises a total of twelve radial orientable fins 3 each of them connected at one end to the central support 4 and at another end to the inner surface of the casing 2.
  • This diffuser 1 has in turn a mechanism for automatic temperature adjustment which, as can be observed in Figures 4.1, 4.2 , 6.1 , 10.1, 10.2 and 12.1 , comprises at least a first fixed thermal fuse 5 located in the central axis of the casing 2 and such that the upper end thereof is located coinciding with the upper section of the casing 2 and a second thermal fuse 6 movable with respect to the first one.
  • This second thermal fuse 6 has a first position in which it is located aligned with respect to the first thermal fuse 5 and in contact with it, and a second position in which it is moved vertically upwards away from the first thermal fuse 5.
  • the mechanism for automatic temperature adjustment in turn comprises fixing means for fixing the position of the first thermal fuse 5 with respect to the inner surface of the casing 2, a plate 7 with a central hole in which there is fitted the lower end of the second thermal fuse 6, a part having a planar upper surface 8 located between the central support 4 and the first thermal fuse 5 and transmission means for transmitting the movement of the second thermal fuse to the twelve radial orientable fins 3.
  • the part having a planar upper surface 8 has a cylindrical shape with an open lower base and a closed upper base, and is connected to the plate 7 by means of three connecting posts 9 having a first spring 10 around each of them, as well as means for abutting with said first springs 10. It also comprises connection means for connecting the plate 7 with the second thermal fuse 6.
  • the means for abutting with said first springs 10 of the three connecting posts 9 are formed by a star-shaped part 11 which, in this preferred embodiment of the invention, has three tips as there are three connecting posts 9.
  • This star-shaped part 11 has a central hole in which the first thermal fuse 5 is securely fitted and a through hole in each tip for each of the connecting posts 9.
  • the first springs 10 of said connecting posts 9 are located on the lower portion of the star-shaped part 11, such that when the three connecting posts 9 move upwards, the movement of the first springs 10 are limited by this star-shaped part 11 and they are in a compressed position.
  • the transmission means for transmitting the movement of the second thermal fuse 6 to the radial orientable fins 3 are formed by rods 12 pivoting about a rivet 13 for attaching the first end thereof with one of the orientable fins 3, respectively, and about a rivet 13 for attaching the second end thereof with the side surface of the part having a planar upper surface 8.
  • the air diffuser 1 with automatic temperature adjustment presented herein comprises safety means formed by a second spring 14 which is located between the plate 7 and a safety abutment 15 which the second thermal fuse 6 has at the upper end thereof.
  • Said plate 7 is connected to the second thermal fuse 6 by connection means formed by a fastening element 16 connected on the lower portion thereof to the plate 7 and on the upper portion thereof to the safety abutment 15 existing in the upper end of the second thermal fuse 6.
  • the fixing means for fixing the first thermal fuse 5 to the inner surface of the casing 2 are formed by a cylindrical part 17 that is fitted around said first thermal fuse 5 and three radial bars 18 located with a first end fastened to the surface of said cylindrical part 17 and said first ends being located equidistant to one another, whereas the second end is fastened to the inner surface of the casing 2.
  • Figures 1 to 6.2 show the diffuser in the case in which it is projecting cold air 20.
  • the temperature adjustable material 19 of the thermal fuses 5, 6, contracts as it contacts with low temperature air and the second movable thermal fuse 6 is in contact with the first thermal fuse 5, as shown in Figure 5 .
  • the second thermal fuse 6 does not exert any force on the plate 7 and said plate also does not exert any force on the part having a planar upper surface 8 to which it is attached by means of the three connecting posts 9, therefore, the three first springs 10 located around each of the three connecting posts 9, respectively, are in stand-by and do not exert any force on the transmission means, as shown in Figure 6.2 , therefore, the part having a planar upper surface 8 is in the lowest position, the rods 12 do not pivot nor exert any force on the orientable fins 3, which are in the position with inclination closest to the horizontal, as can be seen in Figures 4.1 and 4.2 .
  • the projected air 20 has an inclination identical to that of the orientable fins 3, i.e., close to the horizontal, whereby the air 20 reaches higher levels of the room as well as greater distances around the diffuser 1.
  • Figures 7 to 12.2 show the diffuser 1 in the case in which the released air 20 projected by the diffuser is hot air.
  • the temperature adjustable material 19 of the thermal fuses 5, 6, expands, as shown in detail in Figure 11 , where the separation of the second thermal fuse 6 from the first thermal fuse 5 can be seen, which in this preferred embodiment of the invention is generated by a movement 21 thereof by a maximum value of 13 mm.
  • the rods 12 forming the transmission means for transmission to the orientable fins 3 pivot about the points for attaching said rods 12 with a fin 3 and with the part having a planar upper surface 8, respectively.
  • This movement generates the rotation of the orientable fins 3 which take a vertical position, whereby the air jet 20 is projected vertically, achieving greater reach towards lower levels.
  • the safety means defined above and shown in Figures 4.1, 4.2 , 10.1 and 10.2 , and which are formed by a second spring 14 between the plate 7 and the safety abutment 15 of the upper end of the second thermal fuse 6, limit said movement 21.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air-Flow Control Members (AREA)
EP14382248.4A 2014-06-27 2014-06-27 Luftverteiler mit automatischer Temperatureinstellung Withdrawn EP2960591A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14382248.4A EP2960591A1 (de) 2014-06-27 2014-06-27 Luftverteiler mit automatischer Temperatureinstellung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14382248.4A EP2960591A1 (de) 2014-06-27 2014-06-27 Luftverteiler mit automatischer Temperatureinstellung

Publications (1)

Publication Number Publication Date
EP2960591A1 true EP2960591A1 (de) 2015-12-30

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EP14382248.4A Withdrawn EP2960591A1 (de) 2014-06-27 2014-06-27 Luftverteiler mit automatischer Temperatureinstellung

Country Status (1)

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EP (1) EP2960591A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190113248A1 (en) * 2016-03-31 2019-04-18 E3 Green Technology Co., Ltd. Ventilation valve
CN109869886A (zh) * 2019-03-29 2019-06-11 重庆大学 一种基于旋转射流的节能化空调定向送风装置
WO2021201363A1 (en) * 2020-03-31 2021-10-07 Lg Electronics Inc. Air cleaner
CN113788160A (zh) * 2021-11-18 2021-12-14 中国飞机强度研究所 飞机气候环境实验室用宽温域大截面直通式通风装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3121080A1 (de) * 1981-05-27 1982-12-16 Turbon-Tunzini Klimatechnik GmbH, 5060 Bergisch Gladbach Luftauslass mit verstellbaren strahlleiteinrichtungen
GB2272970A (en) * 1992-11-25 1994-06-01 Gilberts Swirl diffuser
ES1063489U (es) 2006-07-19 2006-11-01 Koolair, S.A. Difusor de flujo de aire para instalaciones de acondicionamient, con orientacion automatica del chorro en funcion de la temperatura del aire de salida.
WO2011130778A1 (en) * 2010-04-23 2011-10-27 Kaip Pty Limited An air diffuser and an air circulation system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3121080A1 (de) * 1981-05-27 1982-12-16 Turbon-Tunzini Klimatechnik GmbH, 5060 Bergisch Gladbach Luftauslass mit verstellbaren strahlleiteinrichtungen
GB2272970A (en) * 1992-11-25 1994-06-01 Gilberts Swirl diffuser
ES1063489U (es) 2006-07-19 2006-11-01 Koolair, S.A. Difusor de flujo de aire para instalaciones de acondicionamient, con orientacion automatica del chorro en funcion de la temperatura del aire de salida.
WO2011130778A1 (en) * 2010-04-23 2011-10-27 Kaip Pty Limited An air diffuser and an air circulation system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190113248A1 (en) * 2016-03-31 2019-04-18 E3 Green Technology Co., Ltd. Ventilation valve
CN109869886A (zh) * 2019-03-29 2019-06-11 重庆大学 一种基于旋转射流的节能化空调定向送风装置
CN109869886B (zh) * 2019-03-29 2020-09-15 重庆大学 一种基于旋转射流的节能化空调定向送风装置
WO2021201363A1 (en) * 2020-03-31 2021-10-07 Lg Electronics Inc. Air cleaner
CN113788160A (zh) * 2021-11-18 2021-12-14 中国飞机强度研究所 飞机气候环境实验室用宽温域大截面直通式通风装置
CN113788160B (zh) * 2021-11-18 2022-01-18 中国飞机强度研究所 飞机气候环境实验室用宽温域大截面直通式通风装置

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