EP3469266B1 - Hotte aspirante et procédé de fonctionnement d'une hotte aspirante - Google Patents

Hotte aspirante et procédé de fonctionnement d'une hotte aspirante Download PDF

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Publication number
EP3469266B1
EP3469266B1 EP17729554.0A EP17729554A EP3469266B1 EP 3469266 B1 EP3469266 B1 EP 3469266B1 EP 17729554 A EP17729554 A EP 17729554A EP 3469266 B1 EP3469266 B1 EP 3469266B1
Authority
EP
European Patent Office
Prior art keywords
air outlet
air
hood
extractor hood
outlet device
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.)
Active
Application number
EP17729554.0A
Other languages
German (de)
English (en)
Other versions
EP3469266A1 (fr
Inventor
Miguel Angel Bunuel Magdalena
Sergio Llorente Gil
Jorge Mir Bel
Fernando Planas Layunta
Julio Rivera Peman
Juan Ramón Soler Costa
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3469266A1 publication Critical patent/EP3469266A1/fr
Application granted granted Critical
Publication of EP3469266B1 publication Critical patent/EP3469266B1/fr
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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
    • F24C15/2028—Removing cooking fumes using an air curtain
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • 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
    • F24C15/2078—Removing cooking fumes movable
    • F24C15/2092—Removing cooking fumes movable extendable or pivotable

Definitions

  • the present invention relates to an extractor hood and a method for operating an extractor hood.
  • An extractor hood with a device for generating such an air curtain is, for example, in FR 2 163 927 A5 described.
  • the EP 1 637 810 A1 discloses a kitchen exhaust system.
  • the kitchen exhaust system includes a hood positioned over a heat source, a fan positioned in the hood to draw the polluted air into the hood, and a spray to create an air curtain.
  • the spraying means for creating an air curtain comprises an air duct arranged on the hood to guide the air flow such that the external air can be sprayed to a corner of the intake point of the hood, and an air guide means rotatably arranged in the air duct .
  • the air guiding means comprises a cylindrical body having a certain length and outer diameter, and a spray slit arranged in a radial direction on the cylindrical body to spray the air.
  • the spray slit of the air guide means makes an angular movement within a certain range by the oscillation of the air guide means.
  • a gas compressor In the JP 2008 057389 A a gas compressor is disclosed.
  • the compressor body is housed in a housing, and the back block and housing form an exit chamber into which the high pressure gas exits the compressor body in which it is formed.
  • the front block and the front head form a suction chamber with a low-pressure atmosphere to supply the low-pressure gas to the compressor body.
  • the exit chamber communicates with an exit port and the suction chamber with a suction port.
  • the casing includes a guide vane projected toward the inner peripheral surface of the cylinder.
  • a suction system that includes a fume hood on the outside of which an air supply duct is arranged. Outlets are arranged at constant intervals on the lower surface of the air supply duct. The outlets are arranged in such a way that their angular direction can be changed freely.
  • an extractor hood comprising a hood body including an inlet opening and an outlet opening, a fan for sucking air into the hood through the inlet opening and blowing the air out of the outlet opening.
  • the range hood includes an auxiliary fan, a spray unit, which is arranged at the front of the hood body to discharge the air blown by the auxiliary fan into the kitchen, and a guide unit, which is arranged on the spray unit and is curved, whereby the air into a curvature is performed.
  • An air flow changing unit is arranged between the spray unit and the guiding unit such that the air flow changing unit can rotate along the curved part of the guiding unit.
  • the guide unit is a ring-shaped rod which is journaled at a lower part of the spray unit.
  • the airflow variation unit includes an air slot that is located in the spray unit and that is spaced from a motor that rotates the air slot. According to one embodiment it is disclosed that an exit slot is defined between the air slot and the annular bar and through which the air is discharged vertically downwards towards the cooktop.
  • the DE 10 2006 055 001 A1 discloses a fume extraction device comprising a fume extraction opening coaxially surrounded by an air supply opening.
  • the outer edge of the vapor channel is delimited by an edge of the inner wall.
  • Pivotable flaps are arranged on joints on one edge of the outer wall. Accordingly, an edge of the air supply opening is delimited by the edge of the inner wall and the edges of the pivotable flaps, so that it is possible to change a cross-sectional area of the air supply opening.
  • the object of the present invention is to create an extractor hood and a method with which vapors or other vapors can be removed from the space in the area of the extractor hood in a targeted manner in a reliable manner.
  • the invention is based on the finding that this object can be achieved by creating an air curtain which, with regard to its direction, can be adapted at least in certain areas to the conditions in the area of the extractor hood.
  • an extractor hood comprising a fan, a viewing hood and at least one supply air duct, the at least one supply air duct directing air from the fan inside the extractor hood near the underside of the viewing hood.
  • the extractor hood has at least one supply air duct, a duct end which is in the lower region of the viewing hood, and at least one air outlet device is arranged at the end of the duct, which is arranged at least partially on the extractor hood so that it can be moved in at least one direction and the air outlet device has a longitudinal extension and at least one
  • the air outlet element of the air outlet device can be pivoted about an axis that is perpendicular to the direction of the longitudinal extension, and that the air outlet device has a longitudinal extension that runs in the underside or parallel to the underside of the viewing hood and the air outlet device can be pivoted with respect to the direction of the longitudinal extension.
  • An extractor hood is understood to be a device for sucking in and cleaning vapors, especially for kitchens.
  • the extractor hood includes a blower, which can also be referred to as a fan and by means of which a negative pressure is generated, through which the vapor is sucked into the extractor hood.
  • the fan is arranged in a viewing hood or extends at least in certain areas upwards beyond the viewing hood.
  • a viewing hood here is the part of the Extractor hood, in which the suction opening through which vapors enter the extractor hood is incorporated.
  • a filter for filtering out fat can be provided in the suction opening. However, the filter can also be provided offset upwards in relation to the intake opening in the viewing hood.
  • a chimney can be provided above the viewing hood, in particular in the embodiments in which the fan is at least partially above the viewing hood, which chimney covers the fan to the outside.
  • the extractor hood has at least one supply air duct.
  • a connection is referred to as an air supply duct via which the air from a fan inside the extractor hood is directed at least near the underside of the viewing hood.
  • the supply air duct is preferably arranged inside the extractor hood and in particular inside the viewing hood.
  • the supply air duct can be formed by a partition inside the viewing hood, in which case the outer wall of the viewing hood and the partition wall delimit the supply air duct.
  • the supply air duct can be a space that runs continuously over the circumference of the viewing hood.
  • a plurality of separate supply air ducts can be formed, which are then, for example, each located on one side of the viewing hood.
  • a supply air duct can be formed inside the front side of the viewing hood and inside the side walls of a viewing hood.
  • the air guided in the supply air duct which can also be referred to as supply air, is preferably air that was previously drawn in through the extractor hood and cleaned therein.
  • the supply air can also be drawn in from the room in which the extractor hood is operated, for example a kitchen, and drawn in near the ceiling, for example.
  • the at least one supply air duct has a duct end that is in the lower area of the viewing hood.
  • in the lower area of the viewing hood means that the end of the channel is in the underside of the viewing hood or is slightly offset above or below it.
  • the end of the duct is arranged in such a way that it is not blocked by other parts of the extractor hood, such as filters.
  • directional information such as top, bottom, front and rear refer to the extractor hood and its parts when the extractor hood is mounted on a room wall or ceiling.
  • At least one air outlet device is arranged at the end of the duct.
  • the air outlet device(s) preferably cover(s) the entire duct end of the at least one supply air duct.
  • an air outlet device is referred to as a device which is suitable for directing the air out of the supply air duct in a targeted manner. Air outlet openings are therefore introduced into the air outlet device or the air outlet openings are formed by parts of the air outlet device.
  • the air outlet device can be, for example, a metal sheet, a hollow body, in particular a tube, or consist of several air outlet elements, such as lamellas or pieces of pipe.
  • the air outlet device is arranged on the extractor hood and is at least partially movable in at least one direction.
  • An air outlet device is referred to as movable, at least parts of which can be moved relative to the extractor hood and in particular the viewing hood.
  • the air outlet device can be attached to the viewing hood via bearings, joints or hinges.
  • the air for generating an air curtain is made available through the supply air duct.
  • the direction in which the air curtain is emitted can be changed by moving the air outlet device or parts of the air outlet device, in particular air outlet elements.
  • the direction can thus be adapted to the environmental conditions, for example the condition of a hob provided below the extractor hood, or an increased amount of vapor.
  • the air curtain can preferably consist of several air curtains.
  • the different air curtains can be produced by air outlet devices in the edges of the viewing hood.
  • an air outlet device can be arranged on the front edge of the viewing hood in the end of the duct and a further air outlet device can be arranged on the lateral edges of the viewing hood in the end of the duct.
  • a further air outlet device can be arranged on the lateral edges of the viewing hood in the end of the duct.
  • the air outlet device has a longitudinal extent that runs in the underside or parallel to the underside of the viewing hood.
  • the direction of the longitudinal extension is also referred to below as the longitudinal axis.
  • the air outlet device can be pivoted with respect to the longitudinal axis.
  • a device is used as the air outlet device which is located on the edge of the viewing hood and in particular on the edge of a suction opening of the viewing hood.
  • the longitudinal extent of the air outlet device is therefore, for example, in the front edge of the suction opening or in one or both side edges of the suction opening.
  • the longitudinal extent of the air outlet device is thus in the width direction of the extractor hood and the viewing hood.
  • the longitudinal extension of the air outlet device is in the depth direction of the extractor hood and the viewing hood.
  • the air outlet device is located at the duct end of the supply air duct.
  • the supply air duct can extend over the entire circumference of the intake opening.
  • several supply air ducts are provided, for example a front supply air duct whose end lies in the front edge of the suction opening and further supply air ducts that run on the sides of the viewing hood and whose channel ends lie in the side edges of the suction opening.
  • the air outlet device can be pivoted with respect to the longitudinal axis of the air outlet device, ie the direction of the longitudinal extent. This means that the air outlet device can be rotated through a certain angle about the longitudinal axis of the air outlet device.
  • an air outlet device which is located at the front edge of the suction opening and extends in the width direction of the extractor hood, can be pivoted forwards or backwards about the longitudinal axis.
  • the air curtain is also pivoted either forwards or backwards.
  • the air outlet device can not only be pivoted through an angle that is less than 180°.
  • the air outlet device can be designed in such a way that the air outlet device can be rotated through 360° around the longitudinal axis.
  • Pivoting or rotating about the longitudinal axis thus causes the air outlet openings of the air outlet device to move toward an axis of the extractor hood or away from this axis.
  • a theoretical axis is referred to here as the axis of the extractor hood, which is preferably perpendicular to the intake opening and preferably runs through the fan.
  • the air outlet device which is provided at the end of the duct, running offset downwards in the underside of or parallel to the underside of the viewing hood and the air outlet device being pivotable with respect to the longitudinal axis, the unimpeded exit of the supply air from the air outlet device can be ensured and the angle about which the air outlet device can be pivoted can be maximized.
  • the angle through which the air outlet device and thus the air curtain can be pivoted is limited by the edge of the viewing hood.
  • the air outlet device has a longitudinal extension and at least one air outlet element of the air outlet device can be pivoted about an axis that is perpendicular to the longitudinal axis.
  • the air outlet elements are preferably arranged adjacent to one another in the longitudinal direction of the air outlet device.
  • the air outlet elements can represent, for example, pieces of pipe, which can also be referred to as cylinders and whose pipe axis is vertical when at rest.
  • the air outlet elements can be panels or slats, for example, which are also inclined from the horizontal, for example, are vertical.
  • the air outlet elements can be pivoted about an axis that is perpendicular to the longitudinal axis of the air outlet device.
  • the air outlet elements can preferably be pivoted in such a way that they move in the plane that is spanned by the longitudinal axis of the air outlet device and the vertical.
  • This type of movement can be used, for example, to pivot a front air curtain or rear air curtain of an extractor hood in such a way that it protrudes laterally, at least in some areas, over a hob located vertically below the extractor hood.
  • This is advantageous because it allows a front or rear air curtain to be aligned with the direction of side air curtains.
  • a cooking appliance operated to the right of the hob such as For example, if a fryer or a toaster is to be covered by the air curtain, i.e.
  • the left and right air curtains are swiveled to the right by swiveling the air outlet devices on the left and right edges of the suction opening .
  • the front and/or rear air curtain were discharged further vertically downwards out of the supply air duct, an area would arise in which the air curtain is interrupted and through which vapors and vapors could escape.
  • the front and/or rear air curtain is pivoted or sheared in such a way that it forms a parallelogram in which the angles are not equal to right angles, a continuous, circumferential air curtain can be formed from the front, the side and the rear air curtain.
  • the air outlet device is a plate.
  • the plate which can be designed as a metal sheet, has at least one air outlet opening.
  • the air outlet openings can be designed as slots or round holes.
  • the plate has an elongated shape and covers an elongated duct end of the supply air duct.
  • the plate is mounted at the end of the channel in such a way that it can be pivoted about its longitudinal axis.
  • air curtains can be generated, for example, on the side edges of the suction opening of the viewing hood, which are either directed to the hob under the extractor hood or hit the side next to the hob on a worktop.
  • the air outlet device is a tube.
  • the air outlet openings are made on at least one side of the circumference of the tube, for example in a row of holes.
  • the tube may be slotted or otherwise provided with openings on the side of the circumference opposite the side where the row of holes is made to allow inlet air to enter the interior of the tube.
  • the tube can be pivoted about its longitudinal axis. A pivoted air curtain can also be produced in this way.
  • a slit or another feed opening can be provided on the opposite side.
  • air outlet openings for example in the form of rows of holes, to be introduced over the entire circumference of the tubular air outlet device.
  • the air outlet device can then be rotated by 360° and more about its longitudinal axis, and at least one air curtain is released from the air outlet device in each position.
  • the air outlet device is a hollow body that differs from the tubular shape.
  • a square sheet metal box can be used. This also has air outlet openings on one side and a supply opening for the supply air from the supply air duct on the opposite side.
  • the air outlet device is provided such that it can be pivoted about its longitudinal axis in or under the duct end of the supply air duct.
  • the air outlet device has at least two air outlet elements which are arranged perpendicular to the longitudinal axis of the air outlet device.
  • These air outlet elements can be, for example, pieces of pipe or plates.
  • pipe sections are preferably aligned in a rest position in such a way that they are directed vertically downwards.
  • the upper end of the pipe sections serves as a supply opening for supply air from the supply air duct and the lower end serves as an air outlet opening.
  • More than two air outlet elements are preferably provided.
  • the air outlet elements are arranged adjacent to one another in a row along the longitudinal axis of the air outlet device formed by them.
  • the air outlet elements are preferably each pivotable about an axis that is perpendicular to the longitudinal axis of the air outlet device and in the horizontal. In the case of pipe sections, these can thus preferably each be rotated about an axis which is perpendicular to the pipe axis of the respective pipe section and perpendicularly intersects the longitudinal axis of the air outlet device.
  • air outlet elements it is possible to create an air curtain which, for example, has a parallelogram shape in which the angles are not equal to right angles. The air curtain can thus be sheared out of the air outlet device in one direction or the other.
  • At least one air outlet device comprises at least two air outlet elements, which represent pipe sections
  • the pipe sections are preferably and via a connecting element, for example a rod, articulated together.
  • the rod is connected to the pipe sections at a distance from the upper end of the latter.
  • the rod is therefore in the mounted state of the air outlet device in the horizontal. If the rod is moved along its longitudinal axis, in the case of tubular elements which are movably fastened to the end of the channel, this means that these pivot in the direction of movement of the rod. A shearing movement is thus generated.
  • the extractor hood has a drive unit for moving at least one of the at least one air outlet device.
  • the drive unit can be a motor, in particular an electric motor.
  • the movement of the air outlet device or devices can take place automatically, ie the air outlet device does not have to be brought into the desired position by the user of the extractor hood.
  • multiple or continuous movements of the air outlet device or devices can also be implemented by means of a drive unit.
  • the drive unit is particularly preferably connected to a control unit of the extractor hood.
  • the position to be set by the drive unit, in particular angular position, of the air outlet device or devices can be determined or determined in the control unit according to the operating state of the extractor hood or possibly other environmental conditions.
  • the extractor hood has at least one detection unit for detecting objects and/or environmental conditions in the area of the extractor hood.
  • the objects can, for example, be cooking vessels such as pots on a hob below the extractor hood. Alternatively, the objects can also be other cooking appliances, for example, such as a fryer or a toaster.
  • the detection unit can be a camera, for example.
  • Ambient conditions in the area of the extractor hood include, for example, the temperature of a cooking zone of the hob or the occurrence of vapors. These environmental conditions can also be recorded, for example, by a camera as a detection unit. Alternatively, however, the environmental conditions can also be detected, for example, by sensors, for example infrared sensors.
  • the detection unit is preferably connected to the control unit.
  • the air outlet device or the air outlet devices can be moved, in particular pivoted, one after the other in opposite directions.
  • the advantage can be achieved that, in addition to preventing the fumes from escaping from the space below the extractor hood, the fumes can be fanned in addition to the suction opening.
  • the supply air flow to the air outlet device is particularly preferably interrupted during one of the movements of the to-and-fro movement.
  • the movement in which the air supply is interrupted is preferably the movement in which the air outlet device is pivoted in such a way that the air outlet openings are moved in a direction which points away from the axis of the extractor hood.
  • This temporary interruption of the supply air prevents fumes from being fanned away from the hob by the air curtain exiting the air outlet device.
  • the supply air flow to the air outlet device can be interrupted, for example, by closing the lower end of the duct or the upper end of the duct, which faces the blower. In the case of an additional fan, by which the supply air flow is generated, the interruption can take place by switching off the additional fan.
  • At least one air outlet device can be rotated continuously in one direction about the longitudinal axis of the air outlet device, ie it can be rotated through 360° and more.
  • This embodiment is advantageous, for example, in the case of a rotationally symmetrical air outlet device.
  • air outlet openings are then preferably provided distributed over the circumference of the air outlet device. Therefore, with a continuous rotation of the air outlet device, preferably in the direction of the axis of the extractor hood, successive air curtains can be generated and the vapors can be fanned or pressed particularly efficiently to the suction opening of the viewing hood.
  • the air outlet device or devices can be fixed in at least two positions.
  • the at least two positions in which the air outlet device can be held differ in the angle through which it is pivoted.
  • a position can be, for example, a vertical alignment of the air outlet device. In this position, which can also be referred to as the rest position, the air curtain is discharged vertically downwards through the air outlet device.
  • Another position that can be referred to as an operating position is, for example, a position in which the air outlet device is pivoted out of the rest position.
  • the air outlet device is moved automatically, in particular the air outlet device is driven, for example, by a drive unit and/or automatically fixed in a position.
  • conditions can be stored in a control unit of the extractor hood in which corresponding movements of the corresponding air outlet device are to be carried out or in which a corresponding position of the air outlet device is to be set.
  • the blower for the supply air can be the extractor hood fan.
  • the fan for the supply air it is also possible for the fan for the supply air to be a separate additional fan.
  • the invention relates to a method for operating an extractor hood comprising a fan, a viewing hood and at least one supply air duct, wherein the at least one supply air duct directs air from the fan inside the extractor hood near the underside of the viewing hood, the at least one Supply air duct has a duct end which is in the lower region of the viewing hood, and at least one air outlet device is arranged at the duct end and that the at least one air outlet device is moved at least temporarily in at least one direction with respect to the extractor hood and the air outlet device has a longitudinal extent and at least one air outlet element of the Air outlet device is pivoted about an axis that is perpendicular to the direction of longitudinal extension, and that the air outlet device has a longitudinal extent which runs in the underside or parallel to the underside of the viewing hood and the air outlet device can be pivoted with respect to the direction of the longitudinal extent.
  • air outlet devices are provided on the extractor hood and are moved in different directions.
  • air outlet devices provided on opposite edges of the suction opening of the viewing hood are moved in such a way that the air curtains discharged through them are repeatedly moved towards one another.
  • At least one air outlet device is automatically moved sequentially in a first and then in a second opposite direction.
  • the supply air flow is preferably interrupted in one direction of movement of the air outlet device.
  • a plurality of air outlet devices are provided on the extractor hood and at least temporarily a first air outlet device is held in a first position and a second air outlet device is held in a second position.
  • This type of control of the air outlet devices is particularly suitable for enclosing individual areas, for example individual cooking zones, of a hob that is arranged under the extractor hood with the air curtain formed by the air curtains of the individual air outlet devices and thus ensuring that vapors are extracted from these zones.
  • the movement of the at least one air outlet device is selected by means of a control unit depending on the presence of objects and/or environmental conditions in the area of the extractor hood. This selection can take place by means of a control unit, which then activates corresponding drive units for driving the air outlet devices.
  • the movements and/or positions of the air outlet devices to be set can be stored in the control unit.
  • the movement of the at least one air outlet device is particularly preferably carried out automatically.
  • the movement can be a movement of at least one air outlet device into a predetermined position, a continuous movement of at least one air outlet device in a predetermined direction of rotation or a continuous movement of at least one air outlet device in opposite directions of rotation.
  • the automatic movement eliminates the need for the extractor hood user to move the air outlet device to the desired position.
  • the automatic movement makes it possible to reliably fan vapors towards the suction opening by means of multiple consecutive movements of the air curtain.
  • FIG 1 a schematic sectional view of an embodiment of the extractor hood 1 according to the invention is shown.
  • the extractor hood 1 includes a viewing hood 10 and an exhaust pipe 11.
  • the exhaust pipe 11 can also represent a chimney.
  • a fan 12 is installed inside the extractor hood 1 .
  • the fan 12 is arranged inside the viewing hood 10 in the illustrated embodiment.
  • the blower 12 can also be arranged at least partially in the exhaust air pipe 11 or chimney.
  • a grease filter 13 is arranged below the fan 12 and is used to clean the rising fumes.
  • Supply air ducts 101 are formed on the inside of the viewing hood 10 .
  • the supply air ducts 101 are formed by an intermediate wall 1011 .
  • the intermediate wall 1011 runs from the lower edge of the viewing hood 10 to the fan 12.
  • the supply air ducts 101 are thus formed between the outer wall of the viewing hood 10 and the intermediate wall 1011.
  • the respective end 1010 of the supply air ducts 101 is located on the underside of the viewing hood 10.
  • the supply air ducts 101 preferably extend in such a way that the entire side edges of the intake opening 100 of the viewing hood 10 are each bounded by a duct end 1010 of a supply air duct 101.
  • the two run into figure 1 visible channel ends 1010 along the side edges of the suction opening 100 of the viewing hood 10.
  • a continuous supply air channel 101, whose channel end 1010 extends around the suction opening 100 of the viewing hood 10 is formed by a correspondingly shaped partition.
  • the fumes W that forms below the extractor hood 1 is sucked into the viewing hood 10 via the intake opening 100 by the negative pressure generated by the fan 12 .
  • the vapor W is freed from impurities.
  • the air cleaned in this way reaches the blower 12. From there, part of the air is transported away via the exhaust air pipe 11 and, for example, released into the environment or into the room in which the extractor hood 1 is operated. Another part of the cleaned air is conducted into the supply air ducts 101 by the blower 12 .
  • FIG 2 is a schematic perspective view of an embodiment of the extractor hood 1 according to the invention with air outlet devices 102 (not visible) in a first operating position.
  • the air outlet devices 102 on the left and right edges of the suction opening 100 of the extractor hood 1 are pivoted such that the air exits from the supply air duct 101 inwards, i.e. in the direction of the axis A of the extractor hood 1.
  • a right air curtain 31 inclined downward to the left and a left air curtain 30 inclined downward to the right are formed.
  • a rear or rear air curtain 32 is formed which in the illustrated embodiment is directed vertically downwards.
  • the air outlet devices 102 on the right and left edges of the suction opening 100 can be moved so that the right air curtain 31 moves to the right outside and the left air curtain 30 moves to the left outside. If this movement is repeated several times and executed in the opposite direction, the vapor W is pressed from the hob 2 through the air curtains 30, 31 to the suction opening 100 in addition to the negative pressure of the fan 12.
  • the supply air flow to the duct end 1010 is interrupted during the pivoting movement of the air outlet devices 102 in the direction in which they then point away from the axis of the extractor hood A.
  • FIG 3 is a schematic perspective view of an embodiment of the extractor hood 1 according to the invention with air outlet devices 102 in a second operating position.
  • the air outlet devices 102 are preferably held or fixed in this operating position, ie they are not moved out of this position.
  • the left air curtain 30 is directed vertically downwards and the right air curtain 31 is directed downwards to the left.
  • the space above the left cooking zone of the hob 2 is delimited by the left and right air curtains 30, 31. Fumes W that rise from this cooking zone cannot escape to the sides and is sucked in by the extractor hood 1.
  • a rear and/or front air curtain can be created.
  • a rear air curtain is not necessary if the extractor hood 1 is attached to a room wall. Namely, in this case, the rearward leakage of the vapor W is prevented by the room wall.
  • FIG 4 is a schematic perspective view of an embodiment of the extractor hood 1 according to the invention with air outlet devices 102 in a third operating position.
  • the left air curtain 30 is tilted down to the right and the right air curtain 31 is also tilted down to the right.
  • This alignment of the air curtains 30, 31 shields the right-hand hotplate of the hob 2 on the one hand.
  • an area to the right of the hob 2 is also shielded.
  • another cooking appliance 4 for example a toaster, can be located in this area.
  • the operating position is off figure 4 the rear air outlet device 102 is also pivoted. However, this air outlet device 102 is pivoted in such a way that the air curtain continues to form a vertical plane but is inclined to the right.
  • FIG 5 a schematic bottom view of a further embodiment of the extractor hood 1 according to the invention is shown.
  • an air outlet device 102 is shown only at the front edge of the intake opening 100 .
  • air outlet devices 102 can also be provided on all four edges of the rectangular intake opening 100 .
  • the air outlet device 102 at the in figure 5 shown embodiment is a tube 103.
  • the tube 103 extends horizontally along the front edge of the suction opening 100 and in particular along the front edge of the viewing hood 10.
  • several rows of holes 1040 are introduced, each of which extends in the longitudinal direction of the tube 103 and is arranged parallel to one another.
  • two air curtains 33 are discharged from the air outlet device 102 .
  • the air curtains 33 radiate to the axis of the tube 103.
  • FIG 7 a schematic perspective bottom view of a further embodiment of the extractor hood 1 according to the invention is shown.
  • the air outlet device 102 is formed by a metal sheet 105 .
  • slots 106 are introduced, which are perpendicular to the longitudinal extent of the sheet metal 105 in the embodiment shown.
  • the sheet 105 extends along the entire lower right edge of the viewing hood 10 and is in the figure 7 shown in an operating position in which the air curtain is directed in a direction inclined to the vertical and towards the axis of the extractor hood 1.
  • the sheet metal 105 is rotatably arranged on the supply air duct 101 .
  • Air outlet devices 102 can also be provided on all edges of the viewing hood 10 in this embodiment.
  • air outlet devices 102 on all edges of the intake opening 100 .
  • the air outlet devices 102 can be configured differently.
  • the air outlet devices 102, provided at the front edge and at the rear edge of the suction port 100 have a different structure than the air outlet devices 102 provided at the side edges of the suction port 100.
  • the air outlet device 102 consists of a plurality of air outlet elements 1020 which are arranged adjacent to one another at a small distance.
  • the air outlet elements 1020 represent pipe sections 107 whose pipe axes lie parallel to one another.
  • the pipe sections 107 are connected to one another via a connecting element 108, which is a rod or a metal strip.
  • two connecting elements 108 are provided, one being connected to the pipe sections 107 in the area of one end of the pipe sections 107 and the other in the area of the other end of the pipe sections 107 .
  • FIG figure 9 An extractor hood 1 in which such an air outlet device 102 is provided is shown schematically in FIG figure 9 shown.
  • an air outlet device 102 is again only provided on the front lower edge of the viewing hood 10 .
  • a corresponding air outlet device (not shown) can also be provided on the rear side.
  • air outlet devices according to the embodiments according to FIG figure 5 or 7 be provided.
  • the pipe sections 107 are vertical.
  • the upper end serves as an air supply opening.
  • the upper end can be fastened to the duct end 1010 of the air inlet duct 101 using elastic material, which is shown as a seal 109, for example, and the distances between the pipe sections 107 can be covered by sheet metal, for example.
  • the pipe sections 107 pivot and the air curtain that is output is, for example, as in FIG figure 4 shown inclined to one side.
  • the present invention addresses the problem that sometimes arises when cooking with such an amount of steam rising and falling extractor hood that cannot be completely sucked in due to the maximum power limit of the blower.
  • a closed geometry i.e., a closed air curtain
  • a closed air curtain can be formed by air curtains exiting air outlet devices to confine vapor therein while the fan is aspirating.
  • different configurations of the air movement can be set with the present invention. The simplest way is to generate an air curtain or individual air curtains that direct the steam from the hob to the extractor hood with repeated movements.
  • the air curtain can be focused for this position.
  • Infrared sensors or other measuring devices that detect the hottest zone on the hob can be used to detect the position. The sensor must be able to scan the entire surface of the hob with its beam.
  • Another alternative is to install a camera, take a picture of the surface and compare the temperature to room temperature by a microprocessor.
  • air outlet devices are pivoted, for example in the form of a metal sheet or a tube.
  • the pivoting takes place about the longitudinal axis of the air outlet device.
  • the second mechanism rotates in a different axis to move the air curtain. This movement can be realized with cylinders connected to one another in an articulated manner.
  • the capacities of the extractor hood can be improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Claims (11)

  1. Hotte aspirante (1) comprenant un ventilateur (12), un capot de parement (10) et au moins un conduit d'amenée d'air (101), dans laquelle le au moins un conduit d'amenée d'air (101) dirige de l'air depuis le ventilateur (12) vers l'intérieur de la hotte aspirante dans la région de la face inférieure du capot de parement (10), dans laquelle le au moins un conduit d'amenée d'air (101) présente une extrémité de conduit (1010) qui est située dans la région inférieure du capot de parement (10), et au moins un dispositif de sortie d'air (102) est agencé au niveau de l'extrémité de conduit (1010), qui est agencé sur la hotte aspirante (1) de manière à pouvoir se déplacer au moins partiellement dans au moins une direction, et le dispositif de sortie d'air (102) présente une extension longitudinale (L), et au moins un élément de sortie d'air (1020) du dispositif de sortie d'air (102) peut pivoter autour d'un axe qui est perpendiculaire à la direction de l'extension longitudinale (L),
    caractérisée en ce que
    le dispositif de sortie d'air (102) présente une extension longitudinale (L) qui s'étend dans la face inférieure ou de manière parallèle à la face inférieure du capot de parement (10), et le dispositif de sortie d'air (102) peut pivoter par rapport à la direction de l'extension longitudinale (L).
  2. Hotte aspirante (1) selon la revendication 1, caractérisée en ce que le au moins un dispositif de sortie d'air (102) est situé sur le bord du capot de parement (10), en particulier sur le bord d'une ouverture de sortie (100) du capot de parement (10).
  3. Hotte aspirante (1) selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que le dispositif de sortie d'air (102) constitue une plaque (105), un tube (103) ou un corps creux différent du tube, avec des ouvertures de sortie d'air (1021) ménagées.
  4. Hotte aspirante (1) selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le dispositif de sortie d'air (102) présente au moins deux éléments de sortie d'air (1020), qui sont agencés de manière perpendiculaire à la direction de l'extension longitudinale (L) du dispositif de sortie d'air (102).
  5. Hotte aspirante (1) selon la revendication 4, caractérisée en ce que les au moins deux éléments de sortie d'air (1020) constituent des pièces tubulaires (107) et sont reliés l'un à l'autre de manière articulée par l'intermédiaire d'un élément de liaison (108).
  6. Hotte aspirante (1) selon l'une quelconque des revendications 1 à 5, caractérisée en ce que la hotte aspirante (1) présente une unité d'entraînement permettant de déplacer le au moins un dispositif de sortie d'air (102), et l'unité d'entraînement est de préférence reliée à une unité de commande de la hotte aspirante (1).
  7. Hotte aspirante (1) selon l'une quelconque des revendications 1 à 6, caractérisée en ce que la hotte aspirante (1) présente au moins une unité de détection permettant de détecter des articles et/ou des conditions ambiantes dans la zone de la hotte aspirante (1).
  8. Procédé permettant de faire fonctionner une hotte aspirante (1) comprenant un ventilateur (12), un capot de parement (10) et au moins un conduit d'amenée d'air (101), dans lequel le au moins un conduit d'amenée d'air (101) dirige de l'air depuis le ventilateur (12) vers l'intérieur de la hotte aspirante dans la région de la face inférieure du capot de parement (10), dans lequel le au moins un conduit d'amenée d'air (101) présente une extrémité de conduit (1010) qui est située dans la zone inférieure du capot de parement (10), et au moins un dispositif de sortie d'air (102) est agencé au niveau de l'extrémité de conduit (1010), et le au moins un dispositif de sortie d'air (102) est déplacé au moins temporairement dans au moins une direction par rapport à la hotte aspirante (1), et le dispositif de sortie d'air (102) présente une extension longitudinale (L), et au moins un élément de sortie d'air (1020) du dispositif de sortie d'air (102) est pivoté autour d'un axe qui est perpendiculaire à la direction de l'extension longitudinale (L), caractérisé en ce que
    le dispositif de sortie d'air (102) présente une extension longitudinale (L) qui s'étend dans la face inférieure ou de manière parallèle à la face inférieure du capot de parement (10), et le dispositif de sortie d'air (102) peut pivoter par rapport à la direction de l'extension longitudinale (L).
  9. Procédé selon la revendication 8, caractérisé en ce qu'au moins un dispositif de sortie d'air (102) est déplacé automatiquement au moins successivement dans une première direction et ensuite dans une seconde direction opposée.
  10. Procédé selon l'une quelconque des revendications 8 ou 9, caractérisé en ce que plusieurs dispositifs de sortie d'air sont prévus sur la hotte aspirante, et au moins un premier dispositif de sortie d'air (102) est maintenu temporairement dans une première position et un second dispositif de sortie d'air (102) est maintenu au moins temporairement dans une seconde position.
  11. Procédé selon l'une quelconque des revendications 8 à 10, caractérisé en ce que le déplacement du au moins un dispositif de sortie d'air (102) est sélectionné et de préférence est exécuté automatiquement au moyen d'une unité de commande en fonction de la présence d'articles et/ou de conditions ambiantes dans la région de la hotte aspirante (1).
EP17729554.0A 2016-06-08 2017-06-02 Hotte aspirante et procédé de fonctionnement d'une hotte aspirante Active EP3469266B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201630771A ES2646923B1 (es) 2016-06-08 2016-06-08 Campana extractora de humos y procedimiento para la puesta en funcionamiento de una campana extractora de humos
PCT/IB2017/053268 WO2017212379A1 (fr) 2016-06-08 2017-06-02 Hotte aspirante et procédé pour faire fonctionner une hotte aspirante

Publications (2)

Publication Number Publication Date
EP3469266A1 EP3469266A1 (fr) 2019-04-17
EP3469266B1 true EP3469266B1 (fr) 2022-08-10

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ID=59054156

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Application Number Title Priority Date Filing Date
EP17729554.0A Active EP3469266B1 (fr) 2016-06-08 2017-06-02 Hotte aspirante et procédé de fonctionnement d'une hotte aspirante

Country Status (3)

Country Link
EP (1) EP3469266B1 (fr)
ES (1) ES2646923B1 (fr)
WO (1) WO2017212379A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1227855A (fr) * 1968-03-14 1971-04-07
JP2654227B2 (ja) * 1990-04-13 1997-09-17 株式会社熊谷組 排気方法
KR100595573B1 (ko) * 2004-09-20 2006-07-03 엘지전자 주식회사 주방용 배기장치
KR100600731B1 (ko) * 2004-12-15 2006-07-18 엘지전자 주식회사 배기후드
JP2008057839A (ja) * 2006-08-30 2008-03-13 Toto Ltd レンジフード及びその調整方法
DE102006055001A1 (de) * 2006-11-17 2008-05-21 Bohner Produktions Gmbh Dunstabsaugeinrichtung
CN202125973U (zh) * 2011-06-21 2012-01-25 周辰洋 可防止油烟外溢的排油烟机
CN204026779U (zh) * 2014-06-06 2014-12-17 盛永刚 改进的油烟机隔烟装置

Also Published As

Publication number Publication date
WO2017212379A1 (fr) 2017-12-14
ES2646923A1 (es) 2017-12-18
EP3469266A1 (fr) 2019-04-17
ES2646923B1 (es) 2018-10-15

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