EP3553390B1 - Hängende mehrzweckhaube für die haushaltsextraktion mit eingebautem projektorbilddetektor - Google Patents

Hängende mehrzweckhaube für die haushaltsextraktion mit eingebautem projektorbilddetektor Download PDF

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Publication number
EP3553390B1
EP3553390B1 EP19168148.5A EP19168148A EP3553390B1 EP 3553390 B1 EP3553390 B1 EP 3553390B1 EP 19168148 A EP19168148 A EP 19168148A EP 3553390 B1 EP3553390 B1 EP 3553390B1
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Prior art keywords
hood
hob
extraction
air
suspended hood
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EP19168148.5A
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English (en)
French (fr)
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EP3553390A2 (de
EP3553390A3 (de
Inventor
Monica Milani
Alessandro Donnino
Andrea Coccia
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Faber SpA
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Faber SpA
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    • 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
    • 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
    • F24C15/2071—Removing cooking fumes mounting of cooking hood
    • 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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/087—Arrangement or mounting of control or safety devices of electric circuits regulating heat

Definitions

  • the object of the present invention is a suspended hood for domestic extraction according to the precharacterising clause of the principal claim.
  • Extractor hoods for residential kitchens are known, such as fixed hoods placed above a hob (and associated with an adjacent wall of the room where such hob is located or with a kitchen cabinet) or suspended or island hoods, of the fixed or mobile type.
  • island hoods The essential purpose of island hoods is to ensure proper and efficient extraction of the vapours and/or fumes generated during the preparation of food placed on a hob under the hood; this is thanks to the particular "suspended" arrangement which allows for closer proximity to the hob, and therefore to the generation of fumes and odours, especially when configured within a work island located in a central area of a kitchen and not in the typical installation near a wall.
  • An island hood can therefore be placed at different heights from the hob.
  • hoods of this type have been developed in terms of increasingly important and sophisticated aesthetic variants, as well as the incorporation of new functions such as lighting of the surrounding environment as well as the worktop and the hob below.
  • Hoods of the type mentioned above include a body comprising at least one unit for the extraction of air from the hob through an extraction opening.
  • image projection technology associated with extractor hoods is also known, as for example described in EP 1 512 914 A2 or EP 1 207 353 B1 , as well as in WO 2017/134216 A1 .
  • WO 2017/134216 A1 describes a cooker hood above a hob with a body containing an image projector which is prefitted by the manufacturer and allows the hob to be checked.
  • introduction of the projection function has a rather important aesthetic and dimensional impact on the hood, with the consequence that it completely distorts the conventional configuration of the extraction element, inevitably affecting its efficiency.
  • the object of the present invention is to provide an improved suspended hood.
  • the purpose of the present invention is to provide a suspended hood that overcomes the limitations present in solutions in the known art by incorporating new features that improve its performance and comfort during the process of preparing and cooking food.
  • Another object is to provide a hood of the type mentioned above which, despite being improved with functions not strictly related to air extraction, has optimal functionality in the extraction element, with its corresponding filters.
  • Another object is to provide an extractor hood of the type mentioned, which enables the user who is preparing food on the hob below to be appropriately informed about how to perform this preparation in the best possible way.
  • a further object is to provide a hood of the type mentioned that can also provide the above-mentioned user information about the ingredients being used for food preparation so as to assist this operation.
  • Another object of the invention is to provide an extractor hood of the type indicated above, in which the extractor unit can operate automatically according to the actual production conditions of the volatile organic substances from the hob that contribute to formation of the odours associated with the cooking process; this without the need to have rigid communication, based on a fixed protocol, between the hob and the extractor hood.
  • Another object is to provide a hood of the type mentioned in which the automatic extraction function can be performed by the hood regardless of the type of hob, which also comprises the possibility of working in combination with not only induction or electric hobs, but also gas.
  • Another object is to provide a hood of the type mentioned that also enables the quality of the air in the room or kitchen in general to be monitored in order to monitor the presence of particular pollutants, measure the temperature and humidity and consequently operate the hood in "air conditioning" mode, even when the process of food preparation is not in progress.
  • a further object is to provide an extractor hood of the type mentioned above that is also able to monitor the actual condition of typical cooking processes such as boiling water or frying or adding alcoholic substances, also identifying undesired cooking situations such as the burning of fatty substances, together with the type of source of heat production used for the hob (whether gas or induction hob).
  • a further object of the invention is to provide a hood of the type mentioned that "communicates" with the hob so that it can automatically adjust the heating power of the individual heating elements of such hob in a closed loop in order to keep the entire cooking process under control.
  • a further object of the invention is to provide an extractor hood that can be connected to the internet.
  • an extractor hood 100 comprises an extractor body 1 containing the usual known functional components (such as an extraction unit with at least one fan 1A, one or more filters 1B, at least one grille in Figure 1C , etc.) capable of drawing air from a hob 2 (shown as an example in Figure 1 ), said air containing fumes and/or vapours generated by the preparation of food placed in corresponding containers (not shown) on top of heating elements 3 of said hob 2.
  • These heating elements may be of any type, such as gas, electric or induction.
  • Hood 100 is installed suspended above hob 2 and a worktop 4 adjacent to hob 2 (see Figure 1 ).
  • body 1 of hood 100 is attached to a ceiling in the room where surfaces 2 and 4 are located by means of fixing elements 5 and corresponding cables 6 (usually made of steel).
  • body 1 has a first portion 8 containing, in the case described, two fans (extraction elements) 1A and a second element 9 to act as a mobile support for the grille (extraction element) 1C that delimits an extraction opening 10.
  • first portion 8 there is a grille for discharge of the filtered air.
  • Opening 10 and grille 1C are provided in a main capture and filtration area 13 of hood 100 which is also equipped with a panel for diffused light 18. This is surrounded by a secondary extraction opening 19.
  • secondary extraction opening 19 there is at least one sensor 20 for monitoring airborne substances connected to a corresponding control unit 21, preferably a microprocessor.
  • the location is specifically chosen in order to make the sensor interact with only air drawn in perimetrically by each fan 1A so that this sensor 20 is not affected by the direct extraction flow that normally passes through the main capture area 13. This location makes the sensor readings more reliable over time as they is not directly affected by the fatty substances and oils present in the extracted air that might cause deterioration of the sensor itself.
  • the or each sensor provided is able to monitor different categories of substances in the air such as: VOC (volatile organic compounds), CO, CO 2 , NOx, CH 4 and solid particles. It is also able to monitor environmental parameters such as temperature and relative humidity.
  • Such a sensor provides an overall air quality index that takes into account all the measurable parameters by assigning a specific weighting to the various pollutants and also averaging its value with respect to comfort parameters such as temperature and humidity.
  • each sensor 20 monitoring airborne substances is able to monitor the quality of the ambient air (that is, of the kitchen) and if placed in "auto" mode is able to activate automatically when particular pollutant thresholds that bring the overall index below ideal values are exceeded.
  • the (microprocessor) control unit 21 associated with each sensor or, alternatively, each sensor (if equipped with its own microprocessor unit) is able to aggregate the various substances monitored into specific recognition "patterns" for the cooking process, such as the curve for boiling water or frying with oil, and also recognises appropriate cooking thresholds avoiding the typical burning of food or over-high frying temperatures.
  • This high sensitivity ensures that the hood functions automatically according to the actual amount of "odours" that are being generated, consequently adjusting the correct extraction capacity, regardless of the type of hob that is being used, and not requiring a connection of any kind between hob and hood.
  • hood 100 can automatically generate a feedback signal to a standard hob control unit on the basis of the recognised cooking patterns, to adjust the heating performance of each active heating element and prevent unsuitable cooking processes such as overheating when frying that generates undesirable substances or typical burning, as well as, for example, indicating that the boiling threshold has been reached.
  • This same air quality information as well as information relating to other operating states of the hood can be conveyed by means of images projected onto worktop 4 by projecting images 25 present in hood 1.
  • these means are such as to project images onto said worktop, but they also enable images to be taken of objects placed on worktop 4 or hob 2, as will be described below.
  • These means 25 will then be referred to as recognition and projection means.
  • Recognition and projection means 25 preferably comprise a pointing self-focussing laser pico-projector 30, a highly reflecting mirror 31 and a depth or 3D type video camera 32. These means 25 are placed at the secondary perimetral extraction opening 19 so that a recognition cone 33 and a projection cone can escape via this opening 19. These cones preferably overlap.
  • the system is fully integrated and miniaturised.
  • both sensor 20 which detects air quality and recognition and projection means 25 can be installed "flexibly” in any area of the perimeter of the hood as long as they are inside its body 1 and near opening 19. This allows for maximum flexibility in installation and positioning of the projected area relative to worktop 4.
  • a first scenario provides for the use of projection to take advantage of various multimeans content including videos, images that might also affect the process of food preparation, such as tutorials and video-recipes; such content may also come from the internet to which the hood is connected through an appropriate wi-fi module (not shown) or Bluetooth.
  • 3D video camera 32 can recognize some simple gestures made by the user that permit navigation through such content, such as: change images, start or pause videos, etc.
  • a second scenario is that of being able to automatically assist the user in particular food preparation processes. For example by placing some raw materials such as vegetables, pasta, flour, sugar, etc., on worktop 4 in the area defined by the projection cone 33 corresponding to a recognition area it will be possible to automatically recognize the type of food via video camera 32, calculate its relative volume and through the average specific weight (stored in a memory unit, containing the possible types of food that can be used) provide the end user with an indication of the weight of that food, in practice performing the function of "virtual scale". This evaluation can even be performed by unit 21 to which recognition and projection means 25 and this memory unit are connected. Since the hood is connected to the internet, on the basis of the foods recognised and weighed, unit 21 can search a database relating to the preparation of foods and suggest possible recipes that can be performed with those ingredients and quantities to the user.
  • hood 100 may have its own command and control unit (not shown) that is able to supervise all the functions of the hood according to the invention.
  • projection it is therefore possible to deliver supporting content such as video-recipes and, where possible, projection can deliver images to support the preparation process so that the user can be guided automatically during this process to operate in an optimum way, for example to perform a process of cutting vegetables or a process of plating correctly in an optimum way.
  • first portion 8 and second portion 9 of extraction body 1 are mechanically independent of each other, but are connected together by hinges 52 that allow rotary movement (see Figures 6 and 8 ) of second portion 9 with respect to first 8. Filter 1B can then be accessed for replacement. Hydraulic or pneumatic pistons 70 attach second portion 9 to 8 (in addition to the hinges 52) and guide their relative movement.
  • a suspended extraction hood for domestic use which is improved with respect to known extractor hoods and is capable of monitoring the extracted air and/or the air in the room in which it is placed, which among other things may also enable possible monitoring of the level of residual filtering capacity of the filter (s) of the extractor hood itself, evaluated on the basis of analysis of the extracted air made after the insertion of any clean filters at opening 19 in body 1 of the extractor hood.
  • the invention make it possible to combine the function of projecting images (in itself known), a function of recognising images and "gestures" through the use of a video camera with depth recognition (3D camera). Combination of the two functions enables new functions that can automatically assist the user in the process of food preparation as described to be introduced. This function is performed through the recognition and projection means incorporated in the space inside hood 100 near the secondary perimeter extraction.
  • hood 100 is also able to communicate with the hob via a wireless system and based on the information collected by the sensor for airborne substances, to automatically adjust the heating power of the individual heating elements in a closed loop so as to keep the process of cooking food under control.
  • hood 100 can be connected to web services that can be made use of through recognition and projection means 25.
  • hood 100 may not have a continuous type of secondary extraction opening 19, but may have a number of secondary extraction openings at which sensor 20 and the means 25 are placed so that they can operate according to the embodiment described.
  • sensor 20 can be located within a secondary extraction opening while detection and projection means 25 can be placed within a housing of body 1 of hood 100 opening towards underlying hob 2.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Projection Apparatus (AREA)

Claims (12)

  1. Hängende Haube (100) als Abzug im Haushalt, die dazu fähig ist, über einem Küchenherd (2) angeordnet zu werden, der in eine Arbeitsfläche (4) einer Küche eingelassen ist, wobei die Haube (100) ein Gehäuse (1) aufweist mit Abzugsmitteln (1A) zum Abziehen von Luft, die Rauchgase und/oder Dämpfe enthält, von dem darunterliegenden Küchenherd (2), wobei das Abziehen durch eine primäre Abzugsöffnung (10) erfolgt, die in einem Teil (9) der Haube (100) vorgesehen ist, der zu dem Küchenherd (2) hin zeigt, wobei das Gehäuse (1) einen Bildprojektor (30) umfasst, wobei der Bildprojektor (30) innerhalb des Gehäuses (1) der Haube (100) vorgesehen ist und an dem Teil (9) der Haube (100) angeordnet ist, der zu dem Küchenherd (2) hin zeigt; und eine Stereovideokamera (32), die in das Gehäuse (1) der Haube zu dem Küchenherd (2) und der Arbeitsfläche (4) hin zeigend eingelassen ist, dadurch gekennzeichnet, dass der Projektor (30) und die Stereovideokamera (32) in das Gehäuse (1) der hängenden Haube (100) an einer sekundären Luftabzugsöffnung (19) eingelassen sind, die in dem Teil (9) der Haube (100) vorgesehen ist, der zu dem Küchenherd (2) hin zeigt, wobei die sekundäre Luftabzugsöffnung (19) an einer Seite der primären Luftabzugsöffnung (10) angeordnet ist.
  2. Hängende Haube (100) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Bildprojektor (30) und die Stereovideokamera (32) ein Mittel zum Erkennen und Projizieren von Bildern (25) definieren, wobei der Bildprojektor (30) und die Stereovideokamera (32) innerhalb desselben Sitzes in dem Gehäuse (1) der Haube (100) angeordnet sind.
  3. Hängende Haube (100) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Bildprojektor (30) ein zu richtender selbstfokussierender Laser-Pico-Projektor ist.
  4. Hängende Haube (100) gemäß Anspruch 3, dadurch gekennzeichnet, dass sie einen hochreflektierenden Spiegel (31) umfasst, der dazu fähig ist, die von dem Bildprojektor (30) generierten Bilder zu empfangen und sie zu dem darunter liegenden Küchenherd (2) und der Arbeitsfläche (4) hin zu reflektieren.
  5. Hängende Haube (100) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Bildprojektor (30) und die Stereovideokamera (32) mit einer Steuerungseinheit verbunden sind, die vorzugsweise mit dem Internet verbunden und dazu fähig ist, die Art der Gegenstände und/oder Nahrungsmittel auf dem Küchenherd (2) oder der Arbeitsfläche (4) durch das zu erkennen, was von der Stereovideokamera (32) aufgenommen wird, und die Projektion von Bildern über den Bildprojektor (30), die für die Zubereitung von Nahrung auf dem Küchenherd (2) nützlich sind, zu steuern.
  6. Hängende Haube (100) gemäß Anspruch 5, dadurch gekennzeichnet, dass die Steuerungseinheit dazu fähig ist, das Gewicht eines jeden Nahrungsmittels auf Basis des davon durch die Stereovideokamera (32) aufgenommenen dreidimensionalen Bilds zu bestimmen.
  7. Hängende Haube (100) gemäß Anspruch 1, dadurch gekennzeichnet, dass sie Sensormittel (20) zum Überwachen in der Luft schwebender Substanzen umfasst, wobei die Sensormittel (20) innerhalb des Gehäuses (1) der Haube (100) und in einer solchen Weise angeordnet sind, dass sie nicht direkt durch die Luft beeinträchtigt werden, die von dem Abzugsmittel (1A) eingezogen wird, wobei die Sensormittel (20) dazu fähig sind, mindestens eine Charakteristik dieser abgezogenen Luft oder der Luft der Umgebung zu erfassen, in der die Haube (100) angeordnet ist.
  8. Hängende Haube (100) gemäß Anspruch 7, dadurch gekennzeichnet, dass die Sensormittel (20) an der sekundären Luftabzugsöffnung (19) angeordnet sind.
  9. Hängende Haube (100) gemäß den Ansprüchen 5 und 7, dadurch gekennzeichnet, dass sie mindestens eine der folgenden Eigenschaften aufweist:
    die Sensormittel (20) sind dazu fähig, einen oder mehr aus den folgenden Substanzen in der Luft zu überwachen: flüchtige organische Verbindungen (VOC), CO, CO2, NOx, CH4;
    die Sensormittel (20) überwachen Parameter der Umgebung, in der die Haube (100) angeordnet ist, wie zum Beispiel die Temperatur und Feuchte dieser Umgebung;
    die Sensormittel (20) sind mit einer Steuerungseinheit (21), vorzugsweise einem Mikroprozessor, verbunden, wobei die Steuerungseinheit (21) mit der Steuerungseinheit des Bildprojektors (30) und der Stereovideokamera (32) verbunden ist oder mit dieser zusammenfällt.
  10. Hängende Haube (100) gemäß Anspruch 9, dadurch gekennzeichnet, dass die Steuerungseinheit (21) mit einer Steuerungseinheit für den Küchenherd (2) verbunden ist, um so die Leistung, die von jedem Heizelement (3) eines solchen Küchenherds (2) erzeugt wird, gemäß den Charakteristiken der überwachten und erfassten Luft zu steuern, wobei die Leistungssteuerung es ermöglicht, den Vorgang des Kochens eines auf den Küchenherd (2) auf das Heizelement (3) gestellten Lebensmittels zu steuern.
  11. Hängende Haube (100) gemäß den Ansprüchen 1 und 7, dadurch gekennzeichnet, dass die Abzugsmittel (1A) zum Abziehen der Luft von dem Küchenherd (2) gemäß den Charakteristiken der erfassten Luft betrieben werden.
  12. Anordnung einer hängenden Haube (100) als Abzug im Haushalt gemäß Anspruch 1 und Küchenherd (2), der eine Anzahl Heizelemente (3) hat, wobei die hängende Haube (100) Sensormittel (20) zum Überwachen in der Luft schwebender Substanzen und eine Steuerungseinheit aufweist, mit der die Sensormittel (20) verbunden sind, dadurch gekennzeichnet, dass die Steuerungseinheit auch dazu fähig ist, den Betrieb der Heizelemente (3) des Küchenherds (2) auf Basis der Überwachung in der Luft schwebender Substanzen, die von den Sensormitteln (20) durchgeführt wird, zu steuern.
EP19168148.5A 2018-04-13 2019-04-09 Hängende mehrzweckhaube für die haushaltsextraktion mit eingebautem projektorbilddetektor Active EP3553390B1 (de)

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Application Number Priority Date Filing Date Title
IT102018000004471A IT201800004471A1 (it) 2018-04-13 2018-04-13 Cappa sospesa multifunzione per aspirazione domestica con proiettore-rilevatore di immagini incorporato

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EP3553390A2 EP3553390A2 (de) 2019-10-16
EP3553390A3 EP3553390A3 (de) 2019-12-11
EP3553390B1 true EP3553390B1 (de) 2021-07-28

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CN115682059A (zh) * 2021-07-23 2023-02-03 博西华电器（江苏）有限公司 用于油烟机的提醒方法、装置、设备、存储介质及油烟机

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WO2017082843A1 (en) * 2015-11-09 2017-05-18 Arcelik Anonim Sirketi A household appliance control unit controlled by means of an image reflected by a projector

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CN104329708B (zh) * 2014-10-13 2016-11-23 宁波方太厨具有限公司 近吸式吸油烟机
WO2017082843A1 (en) * 2015-11-09 2017-05-18 Arcelik Anonim Sirketi A household appliance control unit controlled by means of an image reflected by a projector

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ES2894651T3 (es) 2022-02-15
EP3553390A2 (de) 2019-10-16
EP3553390A3 (de) 2019-12-11
IT201800004471A1 (it) 2019-10-13

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