EP2383526A2 - Appareil et méthode pour la régulation du débit d'air dans un canal d'échappement. - Google Patents

Appareil et méthode pour la régulation du débit d'air dans un canal d'échappement. Download PDF

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Publication number
EP2383526A2
EP2383526A2 EP11163680A EP11163680A EP2383526A2 EP 2383526 A2 EP2383526 A2 EP 2383526A2 EP 11163680 A EP11163680 A EP 11163680A EP 11163680 A EP11163680 A EP 11163680A EP 2383526 A2 EP2383526 A2 EP 2383526A2
Authority
EP
European Patent Office
Prior art keywords
opening
exhaust valve
valve
section
exhaust
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
EP11163680A
Other languages
German (de)
English (en)
Other versions
EP2383526B1 (fr
EP2383526A3 (fr
Inventor
Xander Antonius Henricus Maria Gunnewijk
Jan Willem Dik
Erwin Cornelis Johannes Slappendel
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.)
Intell Properties BV
Original Assignee
Intell Properties 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 Intell Properties BV filed Critical Intell Properties BV
Publication of EP2383526A2 publication Critical patent/EP2383526A2/fr
Publication of EP2383526A3 publication Critical patent/EP2383526A3/fr
Application granted granted Critical
Publication of EP2383526B1 publication Critical patent/EP2383526B1/fr
Active 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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/062—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser having one or more bowls or cones diverging in the flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • 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
    • F24F13/1406—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 sealing means
    • 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
    • F24F2013/1433—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 electric motors
    • 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
    • F24F2013/146—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 springs
    • 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
    • F24F2013/1473—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 cams or levers

Definitions

  • the invention relates to a device and method for controlling airflow in an exhaust channel, such as a ventilation channel.
  • valves already exist in cooker hoods, which are either manually or electrically operated. Usually these valves rotate and can not be closed completely. Due to the air pressure, the valves will deform and/or open a little, thereby creating a small slot. Air flowing through the small slot will cause an undesired high pitch whistling noise.
  • a device for controlling airflow through an exhaust channel comprising:
  • valve that has a larger cross section than that of the opening, the valve shuts off the opening completely when being in the closed state. There will be no, or hardly any, leakage of air.
  • the driving means comprise:
  • the pushing member may comprise a cam mounted onto the driving axis, wherein an outer edge of said cam contacts the exhaust valve.
  • the cam is used to transfer a rotational movement to a rectilinear.
  • a durable electric motor can be used, instead of a non-durable (translating) thermo-actuator used in the state of the art.
  • the cam may have an oval cross section and be fixed onto the driving axis in a centred way. Alternatively, it may have a circular shape and be fixed onto the driving axis in an off-centred way. In the latter case, the cam may as well be oval.
  • the advantage of an excenter cam is that both the force on the exhaust valve, as well as the opening speed of the exhaust valve, can be defined precisely. The excenter cam will create a force on the exhaust valve which is the strongest when the valve is closed and the highest force is needed, to overcome 'sticking' of the exhaust valve, due to pollution with grease.
  • the pushing member comprises a push rod pivotably coupled to a driving shaft.
  • the device comprises a housing comprising a side wall, or a plurality of side walls, defining said opening.
  • the device comprises a collar surrounding the opening.
  • the collar may have a substantially conical shape.
  • the exhaust valve may comprise an outer edge having a substantially conical shape for making contact with at least part of the collar.
  • the driving means may comprise at least one spring member arranged to force the exhaust valve in a second direction reverse to said first direction.
  • the use of a spring results in a very simple and relatively cheap device, wherein the valve is pushed back by the spring.
  • a spring is durable and easy to assemble.
  • the device comprises a switch for switching off the motor, wherein the switch is activated by the motor via a flange, mounted around a rotatable axis.
  • the invention also relates to a method of controlling airflow through an exhaust channel, the method comprising:
  • FIG 1 shows a perspective view of a device 1 for controlling airflow through an exhaust channel according to an embodiment of the invention.
  • the device 1 may be installed in existing exhaust channels such as an exhaust channel of a cooker hood, not shown in Figure 1 .
  • the device 1 comprises a housing having a cylindrical side wall 2 and a partition wall 3.
  • the partition wall 3 transcends into two semi-disc shaped walls 4, only one of which is visible in Figure 1 .
  • the device 1 also comprises an exhaust valve 5 which is arranged to close off an opening in the bottom of the device 1.
  • Attached to the valve 5 are two guiding members 6, only one of which is visible in Figure 1 .
  • the guiding members 6 are angle bars sliding against an outer surface of the semi-disc shaped walls 4 and a rib 7 extending from said walls 4.
  • Two spring members 8 are arranged between the exhaust valve 5 and extensions 9 attached to each of the semi-disc shaped walls 4.
  • Figure 1 further shows a second housing 10 for housing a motor, not shown in figure 1 , which motor drives a rotatable axis 11.
  • a ring collar 12 is fixed to the cylindrical shaped wall 2.
  • a second collar 13 is arranged for mounting the device 1 into an exhaust channel.
  • FIG 2 shows a cut out view of the embodiment of Figure 1 .
  • a cam 15 is mounted onto the driving axis 11.
  • the cam 15 is a circular wheel that is mounted near an outer end of the driving axis 11 in an off centred way.
  • a flange 18 is arranged that makes contact with a switch 19 arranged in the second housing 10.
  • the motor is not shown for reasons of clarity.
  • Figure 2 shows the device 1 in its closed state, wherein the valve 4 is pushed against the ring collar 12 of the housing of the device 1 by means of the spring members 8.
  • the driving axis 11 is rotated by 180°, the cam 15 is rotated in a state shown in Figure 3 .
  • the valve 5 is pushed downward into an open state. Now, exhaust air can flow through the device 1.
  • the valve 5 comprises a rubber seal 20 to improve the closing of the opening in the device 1.
  • a rubber seal 20 to improve the closing of the opening in the device 1.
  • the invention is not limited to the use of a seal made of rubber or any other flexible material. The use of such a seal is preferable, since it will better close off the opening.
  • Figure 4 shows a cross section of the device according to a slightly different embodiment, in which the bottom of the valve 40 is flat and a sealing ring 41 is arranged at the peripheral of the valve 40 as shown in figure 4 .
  • the conical shape of the outer edge of the valve 40 can be seen as well as the corresponding conical shape of the ring collar 12. Using a conical shape improves the sealing, and avoids the whistling noise from the exhaust air when the valve is in its almost closed state,
  • Figure 4 also shows a motor 44 which may be an electric motor for driving the rotatable axis 11.
  • the motor 44 may be a grill motor and comprises a pin 45 that sticks into a channel of the driving axis 11.
  • the driving axis 11 comprises a connection rod 70 that is stuck into a socket 42 coupled to the cam 15.
  • the second housing 10 has a lid 10' that can be detached from the second housing 10 so as to give access to the motor 44.
  • Figure 5 shows a top view of the device 1 according to an embodiment.
  • the device 1 comprises two springs 8, and two guiding members 6.
  • the guiding members 6 make contact with the semi disc shaped walls 4 and the ribs 7.
  • the device 1 comprises four ribs 7, only two of which are in fact used.
  • the reason for having four ribs 7 is that it makes the main part of the device more symmetric, which makes it easier to manufacture by means of a mould.
  • a connecting socket 50 is shown for connecting a power cord for connecting the motor 44 to mains or other power source.
  • FIG 6 is a perspective view of the embodiment of figure 4 and 5 , in which the housing of the device is removed except for the lid 10'.
  • the motor 44 comprises two electrical connections 60, 61.
  • the switch 19 comprises three electrical connections 62, 63, 64.
  • FIG 7 only the switch 19, the flange 18 and part of the rotatable driving axis 11 are shown.
  • the connection rod 70 is arranged which can be inserted into the socket 42 fixed to the cam 15, see also figure 4 .
  • the motor 44 is activated, the flange 18 is rotated and will push a button 72 of the switch 19.
  • an electrical circuit is shown which may be used to operate the device 1.
  • the circuit comprises a switch 80 which can be manually switched by means of a button.
  • the switch 80 comprises three connection point referred to as point 81, 82 and 83.
  • the motor is activated.
  • the button 72 of switch 19 is pushed by the co-rotating flange 18, the switch 44 is switched to its other state.
  • the connection point 62 will be disconnected from connection point 64 and connection point 63 will connected to connection point 64.
  • the motor 44 is deactivated, as will be clear to the skilled person.
  • the valve 5 will be in its open state or in its closed state. Once the user switches the switch 80, the motor 44 will be activated again, and will rotate the cam another 180, moving the valve into its other state (i.e. closed or open).
  • Using the circuit of Figure 8 is advantageous because, a user only needs to push the switch 80 once, and the valve will open or close. This results in a very user friendly use of the device 1 and creates an energy-saving solution, because the motor is switched off and no power is needed.
  • Figure 9 shows very schematically a cooker hood 90 with the device 1 according to an embodiment installed in an exhaust channel 91.
  • arrows indicate the air flow, which may result from a central mechanical ventilation system.
  • the invention is neither limited to the combination with central mechanical ventilation systems nor to the use of it in cooker hoods.
  • the device 1 may be used in any kind of ventilation channels. In may even be installed in front of a ventilation opening instead of inside a ventilation channel.
  • Figure 10 shows a schematic cross section of a ventilation channel 100 in which a device 102 for controlling airflow is installed according to an embodiment.
  • the device 102 comprises a valve 103 that is movable is a rectilinear way to open and close an opening of a wall 104.
  • the wall 104 is closing off the ventilation channel 100 except for the opening that is closed by the valve 103.
  • the wall 104 may be arranged inside a tubular housing, not shown, that is arranged to be installed in a tubular ventilation channel.
  • the device 102 comprises a driving rod 105 that is moved by means of a rotatable gear wheel 106.
  • a motor not shown, the gear wheel 106 is rotated thereby moving the rod 105 and the valve 103.
  • the exhaust valve 5; 40 is moved by way of a push rod connected to a rotatable driving shaft driven by a motor.
  • the device 1 of the invention can be configured to fit into non-tubular ventilation channels, such as rectangular shape channels, or any other shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Exhaust Silencers (AREA)
EP11163680.9A 2010-04-29 2011-04-26 Appareil et méthode pour la régulation du débit d'air dans un canal d'échappement. Active EP2383526B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2004636A NL2004636C2 (en) 2010-04-29 2010-04-29 Device and method for controling airflow in an exhaust channel.

Publications (3)

Publication Number Publication Date
EP2383526A2 true EP2383526A2 (fr) 2011-11-02
EP2383526A3 EP2383526A3 (fr) 2013-07-03
EP2383526B1 EP2383526B1 (fr) 2018-08-29

Family

ID=43016672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11163680.9A Active EP2383526B1 (fr) 2010-04-29 2011-04-26 Appareil et méthode pour la régulation du débit d'air dans un canal d'échappement.

Country Status (2)

Country Link
EP (1) EP2383526B1 (fr)
NL (1) NL2004636C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108224529A (zh) * 2018-03-08 2018-06-29 杭州老板电器股份有限公司 补风阀及中央油烟净化设备
EP3428545A1 (fr) * 2017-07-12 2019-01-16 Miele & Cie. KG Appareil de cuisson
EP3299725B1 (fr) * 2016-09-26 2021-02-24 BSH Hausgeräte GmbH Dispositif formant extracteur de buée pourvu de couvercle pour une ouverture du boîtier de l'extracteur de buée

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979934B (zh) * 2012-12-19 2014-02-26 方明新 一种用于抽油烟机上的加压防粘密封阀
DE102022122618A1 (de) 2022-09-06 2024-03-07 Berbel Ablufttechnik Gmbh Mauerkasten und System

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Publication number Priority date Publication date Assignee Title
US5133693A (en) * 1991-07-15 1992-07-28 Imark, Inc. Air supply and exhaust grill
FR2692823B1 (fr) * 1992-06-26 1995-05-19 Dietrich Europ Electromenager Hotte à tube d'aspiration extensible à bouche filtrante d'extrémité.
ES1038212Y (es) * 1997-09-19 1998-12-01 Rigat Anton Luis Regulador de caudal de doble compuerta, motorizado, aplicable a difusores para aire acondicionado.
FI20011765A0 (fi) * 2001-09-06 2001-09-06 Flaekt Oy Ilmanvaihtoventtiili
AU2005205768B2 (en) * 2004-09-06 2007-01-18 Rickard Air Diffusion (Proprietary) Limited Air diffuser
KR100940184B1 (ko) * 2009-01-20 2010-02-04 주식회사 옴니벤트 전동 디퓨저

Non-Patent Citations (1)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3299725B1 (fr) * 2016-09-26 2021-02-24 BSH Hausgeräte GmbH Dispositif formant extracteur de buée pourvu de couvercle pour une ouverture du boîtier de l'extracteur de buée
EP3428545A1 (fr) * 2017-07-12 2019-01-16 Miele & Cie. KG Appareil de cuisson
CN108224529A (zh) * 2018-03-08 2018-06-29 杭州老板电器股份有限公司 补风阀及中央油烟净化设备

Also Published As

Publication number Publication date
NL2004636C2 (en) 2011-11-01
EP2383526B1 (fr) 2018-08-29
EP2383526A3 (fr) 2013-07-03

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