EP2418434A1 - Dispositif et procédé de réglage d'un flux d'air - Google Patents

Dispositif et procédé de réglage d'un flux d'air Download PDF

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Publication number
EP2418434A1
EP2418434A1 EP10172717A EP10172717A EP2418434A1 EP 2418434 A1 EP2418434 A1 EP 2418434A1 EP 10172717 A EP10172717 A EP 10172717A EP 10172717 A EP10172717 A EP 10172717A EP 2418434 A1 EP2418434 A1 EP 2418434A1
Authority
EP
European Patent Office
Prior art keywords
closure element
actuating element
closure
spring
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.)
Granted
Application number
EP10172717A
Other languages
German (de)
English (en)
Other versions
EP2418434B1 (fr
Inventor
Andreas Holm
Elias Knubben
Klaus Sedlbauer
Werner Sobek
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority to EP10172717.0A priority Critical patent/EP2418434B1/fr
Publication of EP2418434A1 publication Critical patent/EP2418434A1/fr
Application granted granted Critical
Publication of EP2418434B1 publication Critical patent/EP2418434B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F24F11/74—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
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity

Definitions

  • the invention relates to a device and a method for controlling an air flow, with a ventilation opening, which is at least partially closed by means of at least one closure element, wherein by means of at least one first actuating element, the position of the closure element in response to the humidity can be influenced.
  • this known device has the disadvantage that the regulation of the air flow only due to the relative humidity does not ensure a satisfactory indoor climate in all operating conditions.
  • the invention is therefore based on the object to provide a device with which an improved indoor climate can be generated.
  • the object is achieved by a device according to claim 1, a method according to claim 9 and a use according to claim 13.
  • a device for controlling an air flow in which a ventilation opening is at least partially closable by means of at least one closure element. Due to the position of the closure element thus the free cross-section of the ventilation opening and so that the passing through the vent opening air flow can be influenced.
  • the position of the closure element is inventively influenced or predetermined by two actuators.
  • the first actuating element influences the position of the closure element depending on the humidity.
  • the second actuating element influences the position of the closure element as a function of the air temperature.
  • both the first and second actuators operate passively. This means that the position of the closure element can be influenced without the supply of electrical energy. Thus, the device according to the invention over a longer period of maintenance is used.
  • the vent may in some embodiments of the invention have a round or polygonal cross-section.
  • the ventilation opening may have a width between 50 and 175 mm.
  • the vent may have a height of 20 mm to 175 mm.
  • a plurality of ventilation openings may be provided which are at least partially closable either by a single closure element or by a plurality of closure elements, wherein each ventilation opening is associated with at least one closure element.
  • the closure member may in some embodiments of the invention include or consist of a vent.
  • the closure element may be formed as a membrane. Such a membrane allows a flush installation of the device, so that the external appearance of the interior plaster or the facade in lesser Dimensions are affected and the installation of curtains or blinds is not hindered.
  • the closure element engages at least a first spring element, with which the closure element can be brought into an open position and the first and / or second actuating element is adapted to counteract the spring force of the first spring element.
  • the closure element is brought into an open position in case of failure of the first and the second actuating element, so that a sufficient ventilation of the room is ensured. If the humidity and / or the air temperature assumes a value at which an actuating element at least partially closes the closing element, the closing force exerted by the actuating element counteracts the spring force of the first spring element, so that the closing element is closed and the air flow is reduced.
  • the first actuator may include or consist of at least one synthetic fiber.
  • a plurality of synthetic fibers can be used, which run parallel to each other.
  • the number of synthetic fibers may be about 4 to about 15 in some embodiments.
  • the material of the synthetic fiber is selected such that the synthetic fiber expands as the relative humidity increases and contracts as the humidity decreases. In this way it can be ensured that the proposed device reacts without supplying electrical energy to a changing humidity and can be operated in this way many years maintenance-free.
  • the synthetic fiber may contain or consist of polyester.
  • the second actuator may be implemented as a passive expansion element containing an expanding material.
  • the expansion material is selected such that it expands with increasing temperature and contracts with decreasing temperature.
  • the proposed device the air flow in dependence regulate changing temperatures without the need for the supply of auxiliary power, for example, to drive an electric actuator or electronic control.
  • the wax can contain oil, wax, silicone or hard paraffin.
  • the second actuator may include a bladder of a polymer, a rubber, or a metal filled with the wax.
  • a larger amount of the expansion material can be introduced into the closure element, so that a greater opening force is provided. Due to the larger mass of the expansion material, the temperature control reacts with a delay, resulting in a control with an integrating characteristic.
  • the device may comprise a plurality of closure elements, wherein at least one closure element is arranged on the interior side of the room and a closure element on the outside of the room.
  • the control can be designed such that both the inside and the outside temperature are taken into account.
  • the outer closure element can at least partially close the ventilation opening when the temperature rises above a predefinable limit value. In this way it is prevented that when the room temperature rises warm ambient air is led into the room, which would lead to a further increase in the internal temperature.
  • the first and / or the second actuating element may also be omitted in at least one of the two closure elements.
  • the first actuating element and / or the second actuating element may be fastened by means of a second spring element to an immovable part of the device.
  • the first actuating element or the second actuating element exert a force on the first spring element in order to transfer the closure element from an open to a closed position.
  • the respectively not involved in the closing or opening operation actuator is then on the second Released spring element, so that this does not hinder the movement of the closure element.
  • the apparatus described may be used to control the amount of fresh air supplied to the room.
  • the device may be integrated in an outer facade and / or a roller shutter box and / or a window frame in order to influence the amount of fresh air introduced into the room through the ventilation opening, so that the room temperature and / or the humidity within a predeterminable range is held.
  • the described device can also be used in conjunction with an exhaust air line in order to influence the amount of air removed from the room via a ventilation shaft and / or a mechanical fan in such a way that temperature and / or humidity be kept within a predetermined range.
  • the air exchange of the space can be regulated depending on the load, i. When heat and / or humidity is supplied, the air exchange increases until the effects of the heat and / or moisture input are compensated.
  • FIG. 1 shows an exploded view of an embodiment of the device according to the invention.
  • the device includes a frame 100.
  • a recess 110 which serves to receive the spring elements and actuators and which at least partially forms the cross section of the vent opening 25.
  • the frame 100 in some embodiments of the invention, may be made of a metal or alloy, such as an aluminum alloy. In other embodiments of the invention, the frame 100 may be made of a plastic material, such as a thermoplastic.
  • the frame can be obtained in some embodiments of the invention by injection molding or a continuous casting process.
  • the frame 100 has a first side 101 which, when the device 10 is used, faces the space to be ventilated.
  • the first page 101 may be decorative designed to adapt to design specifications of the space to be ventilated or the adjacent component.
  • the frame 100 has a second side 102 on which fastening elements can be arranged in some embodiments of the invention.
  • a first frame 100 with the second side 102 may be attached to a second frame 115, resulting in a symmetrical structure of the device according to the invention.
  • a component of a building such as a window frame or a wall.
  • the second frame 115 is optional and may be omitted in other embodiments of the invention. The function of the device according to the invention will therefore be explained with reference to the first frame 100, wherein the second frame 115 may have the identical features and the identical construction to the first frame 100.
  • the second frame may have fewer or different elements than the first frame.
  • the first spring element has a web 120 made of a resilient material, which is fastened to the frame 100 by means of elastic elements 121.
  • the web 120 may be made of a plastic material, for example. In other embodiments of the invention, the web 120 may include a spring steel or consist of.
  • the web 120 and the elastic elements 121 cooperate, so that the spring elements 120 are arranged spaced from each other in the unloaded state. Thus, the webs 120 move in the unloaded state due to the spring force to the edges of the frame 100. This forms between the webs 120, a free cross section.
  • first longitudinal section 220 of the first actuating element 200 is arranged non-positively.
  • the first longitudinal section 220 merges via a bend 230 into a second longitudinal section 210.
  • the longitudinal sections 210 and / or 220 contain at least one synthetic fiber, which shows a change in length as a function of the relative humidity.
  • the first actuator 200 is hinged at its ends 240 to a fastener 105 which is attached to the frame 100 or is an integral part of the frame 100.
  • the attachment may be by means of second spring elements 240.
  • the spring elements may contain or consist of an elastomer and / or a spring steel.
  • the longitudinal section 220 of the first actuating element 200 is shortened so that the web 120 arranged parallel to the first longitudinal section 220 is pulled into a less curved position.
  • the symmetrical arrangement of two first actuators 200 and two webs 120, the webs 120 can be brought into an approximately parallel position to each other, so that the trapped by the webs 120 gap is minimal. Since the gap between the webs 120 determines the cross-section of the vent opening 25, the vent opening 25 can be minimized at low relative humidity.
  • the cross-section of the ventilation opening can also be reduced to zero, so that no air exchange takes place through the ventilation opening 25.
  • the length of the first longitudinal section 210 of the first actuating element 200 becomes larger. This increases the curvature of the webs 120, so that the enclosed between two webs 120 intermediate space and thus the cross section of the vent opening 25 is larger.
  • the closure element 20 is formed in the illustrated embodiment as a membrane, which has a ventilation opening 25 forming slot in its central region. Furthermore, the membrane 20 has a plurality of folds 24.
  • the membrane 20 may be made of a plastic material in some embodiments of the invention. The material can be designed to be elastic in order to ensure free mobility of the membrane 20 during the movement of the webs 120.
  • the membrane 20 may contain or consist of a rubber or an elastomer.
  • the material of the membrane 20 may also be filled with other materials that affect the external appearance or mechanical properties or thermal properties of the membrane 20.
  • the boundary edges of the slot are at least partially attached to the webs 120.
  • the outer edge of the membrane is attached to the outer boundary line 111 of the recess 110. In this way, the closure element 20 can close most of the recess 110 in the frame 100.
  • the vent opening 25 is released by the membrane 20 to a greater or lesser extent.
  • a second actuating element acts on the position of the webs 120, in this way influencing the size of the ventilation opening 25.
  • the device includes two second actuators 245.
  • the second actuator 245 includes a bellows made of an elastic material, such as a polymer or a rubber.
  • the bellows has a substantially cylindrical basic shape.
  • the wax can contain oil, wax, silicone or hard paraffin.
  • the expansion material ensures a change in length of the bellows with increasing temperature and a shortening of the bellows with decreasing temperature. This way you can a force acting in the longitudinal direction on the webs 120 force are exerted, which leads to an increase in the curvature of the webs.
  • the ventilation opening 25 is increased with increasing temperature and reduced with decreasing temperature.
  • the expansion material in the bellows 245 causes an enlargement of the ventilation opening 25 and the first actuator 200 would cause a reduction of the ventilation opening 25, the first actuator 200 can give over the springs 240 and despite low air humidity, the ventilation opening 25 at least partially release.
  • this may include a second frame 115, the opening of which is closed by a second membrane 21.
  • the second frame 115 may be arranged with the second membrane 21 on the outside of the building and adapted to the design requirements of the building exterior.
  • the behavior of the first and second actuators in the second frame 115 may differ from the behavior of the first and second actuators in the first frame 100, so that the air supply to the space provided with the device is further optimized.
  • the second frame 115 includes only a first actuator 200.
  • the second actuator 245 is provided only in the first frame 100.
  • FIG. 2 shows the interior view of a device 10 according to the present invention in the closed state.
  • a plan view of the first frame 100 with the membrane 20 attached thereto is shown.
  • the FIG. 1 illustrated webs 120 and the first actuating element 200 is covered by the membrane 20.
  • the ventilation opening 25 is almost completely closed or adjusted to a minimum air flow. This is achieved in that the webs 120 are arranged almost parallel to each other.
  • the folds 24 of the membrane 20 allow a free movement of the membrane, so that it can cover the ventilation opening.
  • FIG. 3 shows the device according to FIG. 2 in an open state. This can be caused either by an increase in the relative humidity over the first actuator and / or an increase in the temperature by the second actuator.
  • an increasing curvature of the webs 120 leads to an increase in the distance of the webs 120 and thus to the formation of a larger ventilation opening 25 through which the air can flow into the room or leave it via a ventilation duct.
  • the folds 24 of the membrane 20 also ensure freedom of movement in this case, so that the membrane 20 can follow the movements of the webs 120.

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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)
EP10172717.0A 2010-08-12 2010-08-12 Dispositif et procédé de réglage d'un flux d'air Not-in-force EP2418434B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10172717.0A EP2418434B1 (fr) 2010-08-12 2010-08-12 Dispositif et procédé de réglage d'un flux d'air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10172717.0A EP2418434B1 (fr) 2010-08-12 2010-08-12 Dispositif et procédé de réglage d'un flux d'air

Publications (2)

Publication Number Publication Date
EP2418434A1 true EP2418434A1 (fr) 2012-02-15
EP2418434B1 EP2418434B1 (fr) 2013-10-09

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ID=43413592

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EP10172717.0A Not-in-force EP2418434B1 (fr) 2010-08-12 2010-08-12 Dispositif et procédé de réglage d'un flux d'air

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017060266A1 (fr) * 2015-10-06 2017-04-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dispositif de ventilation pourvu d'un système d'étanchéité variable
DE102021002510A1 (de) 2021-05-12 2022-11-17 Truma Gerätetechnik GmbH & Co. KG Klimagerät

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983004298A1 (fr) * 1982-06-04 1983-12-08 V. Kann Rasmussen Holding A/S Regulateur de tirage d'event
FR2544471A1 (fr) * 1983-04-13 1984-10-19 Rech Ventil Aeraulique Et Dispositif d'amenee d'air a l'interieur d'un local
FR2588945A1 (fr) * 1985-10-17 1987-04-24 Ventilation Indle Miniere Bouche d'extraction ou d'admission d'air ou de gaz pour la ventilation d'un local a obturateur reglable commande par un bilame
EP0638775A1 (fr) * 1993-08-10 1995-02-15 Conseils Etudes Et Recherches En Gestion De L'air C.E.R.G.A. Procédé et dispositif de réglage de la section d'une entrée d'air de ventilation dans un local
FR2848648A1 (fr) * 2002-12-16 2004-06-18 Conseils Etudes Et Recherches En Gestion De Lair Cerga Dispositif de ventilation d'un local en fonction de l'humidite relative relevee
EP1557619A1 (fr) * 2004-01-16 2005-07-27 Building Product Design Limited Dispositif à soupape

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983004298A1 (fr) * 1982-06-04 1983-12-08 V. Kann Rasmussen Holding A/S Regulateur de tirage d'event
FR2544471A1 (fr) * 1983-04-13 1984-10-19 Rech Ventil Aeraulique Et Dispositif d'amenee d'air a l'interieur d'un local
FR2588945A1 (fr) * 1985-10-17 1987-04-24 Ventilation Indle Miniere Bouche d'extraction ou d'admission d'air ou de gaz pour la ventilation d'un local a obturateur reglable commande par un bilame
EP0638775A1 (fr) * 1993-08-10 1995-02-15 Conseils Etudes Et Recherches En Gestion De L'air C.E.R.G.A. Procédé et dispositif de réglage de la section d'une entrée d'air de ventilation dans un local
FR2848648A1 (fr) * 2002-12-16 2004-06-18 Conseils Etudes Et Recherches En Gestion De Lair Cerga Dispositif de ventilation d'un local en fonction de l'humidite relative relevee
EP1557619A1 (fr) * 2004-01-16 2005-07-27 Building Product Design Limited Dispositif à soupape

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017060266A1 (fr) * 2015-10-06 2017-04-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dispositif de ventilation pourvu d'un système d'étanchéité variable
DE102021002510A1 (de) 2021-05-12 2022-11-17 Truma Gerätetechnik GmbH & Co. KG Klimagerät
WO2022237997A1 (fr) 2021-05-12 2022-11-17 Truma Gerätetechnik GmbH & Co. KG Dispositif de climatisation destiné à être installé sur un toit

Also Published As

Publication number Publication date
EP2418434B1 (fr) 2013-10-09

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