EP1450106A2 - Système à commander permanente l'aspiration d'un ventilateur d'une hotte d'aspiration de cuisine - Google Patents

Système à commander permanente l'aspiration d'un ventilateur d'une hotte d'aspiration de cuisine Download PDF

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Publication number
EP1450106A2
EP1450106A2 EP20040075236 EP04075236A EP1450106A2 EP 1450106 A2 EP1450106 A2 EP 1450106A2 EP 20040075236 EP20040075236 EP 20040075236 EP 04075236 A EP04075236 A EP 04075236A EP 1450106 A2 EP1450106 A2 EP 1450106A2
Authority
EP
European Patent Office
Prior art keywords
suction
extractor fan
group
button
control keypad
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Withdrawn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
EP20040075236
Other languages
German (de)
English (en)
Inventor
Alvaro Galassi
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.)
Faber SpA
Original Assignee
Faber SpA
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 Faber SpA filed Critical Faber SpA
Publication of EP1450106A2 publication Critical patent/EP1450106A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F24C15/2021—Arrangement or mounting of control or safety systems

Definitions

  • the present invention refers to a system for continuously controlling, 24 hours per day, the suction of a kitchen extractor fan.
  • the present invention refers to a system for controlling the suction of a kitchen extractor fan, in which the suction flow rate of the extractor fan is adjusted.
  • a device for sucking in smoke comprises an electric motor which rotates a fan which sucks in the air below the lower opening of the extractor fan, conveying it in the direction of the upper suction tube.
  • the management of the adjustment of the suction flow rate of an extractor fan is managed manually by the user, who, generally, activates the extractor fan only when he/she starts normal cooking activities. In such a manual mode it is possible to act upon the adjustment of the lights and of the motor as well as to activate auxiliary functions such as a device for delaying the turning off of the suction device.
  • Automatic systems for controlling the suction of a kitchen extractor fan are also known in which one or more sensors which detect the presence of smoke send signals to the extractor fan, so as to modulate the suction flow rate. There can also be sensors for automatically adjusting the light intensity emitted by the extractor fan, according to the degree of room lighting.
  • control systems are activated only when the sensor(s) receive a perturbation with respect to their by-pass state, which usually occurs during cooking operations or for brief, random moments of concentration of smoke, odours or possibly temperature, in the immediate vicinity of the extractor fan and thus of the sensors.
  • a perturbation with respect to their by-pass state which usually occurs during cooking operations or for brief, random moments of concentration of smoke, odours or possibly temperature, in the immediate vicinity of the extractor fan and thus of the sensors.
  • This for example, refers to the case of a smoker or a heavily perfumed person very close to the extractor fan, or else the case of a leak of a gas that is lighter than air.
  • the suction system remains inactive.
  • the Applicant has realised a system in which the kitchen extractor fan transforms into an apparatus that is always active, capable of ensuring an adequate exchange of air in the room, not only at the time of cooking but rather uninterruptedly throughout the day, from a still active very low minimum, up to the maximum, through the continuous adjustment of the electronic control, which optimises the flow rate of the ventilator of the extractor fan according to the degree of alteration of the air quality.
  • the Applicant has realised a system for controlling the suction of a kitchen extractor fan, which if actuated in automatic mode always remains active, so as to ensure a predetermined suction flow rate for all of the actuation period, for example twenty-four hours per day.
  • An aspect of the present invention concerns a system for controlling the suction of a kitchen extractor fan, said extractor fan comprising a control keypad, a suction group comprising a motor and a fan, a device for adjusting said suction group, at least one air quality sensor, possibly integrated by at least one temperature sensor and a central processing unit, characterised in that said processing unit, in response to a selection of a button of said control keypad, determines a manual operating mode of the extractor fan and an automatic operating mode in which it receives the signals from the sensors and controls said device for adjusting the suction group, so as to keep said suction group permanently active.
  • a conventional kitchen extractor fan comprises an upside-down funnel-shaped portion 11, realised in a single body or equivalently connected with an upper suction tube 12, a control keypad 13, a lighting group 14, a suction group comprising a motor and a fan 15.
  • the system for controlling the suction of a kitchen extractor fan comprises a device for adjusting said suction group 115, at least one air quality sensor 16 and, possibly, at least one temperature sensor 17.
  • said system preferably also comprises a device for adjusting said lighting group 114.
  • a central processing unit 18 is connected with said adjustment devices with the control keypad and with the sensors.
  • a processing unit is, for example, a microprocessor.
  • the system according to the present invention operates in the following way.
  • the control keypad 13 is provided with a plurality of buttons, amongst which there is at least one first button 131 for selecting a manual mode or an automatic mode.
  • the central processing unit following the reading of a signal coming from said first button, selects the operation of the extractor fan in one of the two modes.
  • Said manual mode foresees the use of the extractor fan, based upon the commands coming from the other buttons foreseen of the control keypad.
  • buttons for switching on the lighting group and manually adjusting its intensity For example, it is possible to foresee a button for switching on the lighting group and manually adjusting its intensity and a button for switching on the suction group and adjusting its intensity.
  • said sensors send signals to the central unit, which controls the suction group, through said adjustment device of the suction, so as to modulate the suction flow rate according to the degree of alteration of the air quality.
  • the suction group remains permanently active, i.e. a minimum suction is ensured throughout the day or for a predetermined time, or rather all the whilst the extractor fan is supplied with electrical energy for example through the electricity mains.
  • the purpose of this is that of ensuring a suitable exchange of air in the room, not only at the time of cooking, but rather uninterruptedly throughout the day, from a still active very low minimum, up to the maximum, through the continuous adjustment of the suction group, which optimises the flow rate of the fan according to the degree of alteration of the air quality.
  • such a central unit can advantageously control the lighting adjustment device in order to modulate the light emitted by the lighting group according to the lighting of the surrounding environment.
  • a purpose of the present invention is that of characterising the extractor fan as an intelligent ventilation system, aimed for the maximum comfort of the kitchen and of other communicating rooms. To do this it is sufficient to activate, through suitable commands, the automatic operating mode with continuous exchange of air.
  • the extractor fan in normal conditions the extractor fan always works, 24 hours per day, at the continuous ventilation flow rate (for example about 100 m 3 /h) ensuring an adequate exchange of air in the room and outside with unnoticeable noise and extremely low energy consumption.
  • the extractor fan contributes to avoiding the formation of mould and condensation on the walls and to extracting polluted air from the room drawing in clean air from the ventilation openings made by law on the walls or on the window or simply through each non-sealed air inlet.
  • This adjustment system is useful in all seasons of the year; in winter, when the kitchen walls are colder, the continuous exchange introduces fresh air with a lower relative humidity level, helping to avoid the formation of condensation and mould on the walls. In summer, when the humidity level is generally high, a correct ventilation allows the typical uncomfortable sensation due to the stillness of the air inside living areas to be reduced.
  • the activation of said sensors due for example to an increase in the humidity levels and/or odours generated during cooking, modulates the suction flow rate of the extractor fan according to the real need for air evacuation, so as to ensure at all times the minimum noise and low energy consumption together with the capture and extraction of undesired pollutants.
  • the air quality sensor can detect an anomalous presence of gas an automatically and immediately activate the fan at high flow rates, evacuating the gas mixture to the outside and drawing in unpolluted air from the outside with the effect of keeping the mixture itself very diluted and harmless, until the intervention of the user.
  • the senor as well as activating the inner fan of the extractor fan, can act at the same time on an electro-valve arranged along a supply piping of the gas in the room (kitchen) so as to close said valve and thus block the flow of gas to the room itself, eliminating any danger at the source.
  • the continuous operation of the inner fan of the extractor fan at the continuous exchange speed for example 100 m 3 /h, makes the intervention of the extractor fan possible also in cases of leaks of gases heavier than air, since the continuous flow towards the extractor of the extractor fan manages to very quickly transport a sufficient amount of gas heavier than air that is sufficient to trigger the highest speeds and the possible simultaneous closing of the supply valve of the gas towards the sensor(s).
  • the system therefore, combines comfort and safety in a domestic kitchen environment in the best possible of ways.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Ventilation (AREA)
EP20040075236 2003-01-31 2004-01-23 Système à commander permanente l'aspiration d'un ventilateur d'une hotte d'aspiration de cuisine Withdrawn EP1450106A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20030167 ITMI20030167A1 (it) 2003-01-31 2003-01-31 Sistema per il controllo continuo dell'aspirazione di
ITMI20030167 2003-01-31

Publications (1)

Publication Number Publication Date
EP1450106A2 true EP1450106A2 (fr) 2004-08-25

Family

ID=32732604

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040075236 Withdrawn EP1450106A2 (fr) 2003-01-31 2004-01-23 Système à commander permanente l'aspiration d'un ventilateur d'une hotte d'aspiration de cuisine

Country Status (2)

Country Link
EP (1) EP1450106A2 (fr)
IT (1) ITMI20030167A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006053824A1 (fr) * 2004-11-19 2006-05-26 BSH Bosch und Siemens Hausgeräte GmbH Dispositif et procede pour ventiler une surface de cuisson
WO2007097715A1 (fr) * 2006-02-21 2007-08-30 Kim Lui So Commandes pour conduits de ventilation et d'échappement et ventilateurs
EP2261569A1 (fr) * 2009-06-12 2010-12-15 Electrolux Home Products Corporation N.V. Unité de capteur pour hotte de cuisine, hotte de cuisine et dispositif de cuisson
CN102840613A (zh) * 2012-08-31 2012-12-26 柳州市京阳节能科技研发有限公司 环保节能热水除油烟机
CN103423794A (zh) * 2013-07-12 2013-12-04 深圳市福田区青少年科技教育协会 一种节电抽油烟机
CN104728891A (zh) * 2013-12-24 2015-06-24 柳州市京阳节能科技研发有限公司 高效节能环保暖水除油烟机

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006053824A1 (fr) * 2004-11-19 2006-05-26 BSH Bosch und Siemens Hausgeräte GmbH Dispositif et procede pour ventiler une surface de cuisson
WO2007097715A1 (fr) * 2006-02-21 2007-08-30 Kim Lui So Commandes pour conduits de ventilation et d'échappement et ventilateurs
CN101443595B (zh) * 2006-02-21 2012-10-10 苏剑蕾 通风、排气管道以及风扇的控制装置
EP2261569A1 (fr) * 2009-06-12 2010-12-15 Electrolux Home Products Corporation N.V. Unité de capteur pour hotte de cuisine, hotte de cuisine et dispositif de cuisson
WO2010142425A1 (fr) * 2009-06-12 2010-12-16 Electrolux Home Products Corporation N.V. Unité de détection pour hotte aspirante, hotte aspirante et appareil de cuisson
US9752785B2 (en) 2009-06-12 2017-09-05 Electrolux Home Products Corporation N. V. Sensor unit for a suction hood, suction hood and cooking device
CN102840613A (zh) * 2012-08-31 2012-12-26 柳州市京阳节能科技研发有限公司 环保节能热水除油烟机
CN102840613B (zh) * 2012-08-31 2014-12-10 柳州市京阳节能科技研发有限公司 环保节能热水除油烟机
CN103423794A (zh) * 2013-07-12 2013-12-04 深圳市福田区青少年科技教育协会 一种节电抽油烟机
CN103423794B (zh) * 2013-07-12 2016-09-07 深圳市福田区青少年科技教育协会 一种节电抽油烟机
CN104728891A (zh) * 2013-12-24 2015-06-24 柳州市京阳节能科技研发有限公司 高效节能环保暖水除油烟机

Also Published As

Publication number Publication date
ITMI20030167A1 (it) 2004-08-01

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