EP3839356A1 - Unité de filtre et dispositif formant hotte aspirante pourvu d'unité de filtre - Google Patents

Unité de filtre et dispositif formant hotte aspirante pourvu d'unité de filtre Download PDF

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Publication number
EP3839356A1
EP3839356A1 EP20208000.8A EP20208000A EP3839356A1 EP 3839356 A1 EP3839356 A1 EP 3839356A1 EP 20208000 A EP20208000 A EP 20208000A EP 3839356 A1 EP3839356 A1 EP 3839356A1
Authority
EP
European Patent Office
Prior art keywords
filter
filter unit
handle
support frame
filter elements
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.)
Pending
Application number
EP20208000.8A
Other languages
German (de)
English (en)
Inventor
Stéphane HERFELD
Nico Zendel
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 EP3839356A1 publication Critical patent/EP3839356A1/fr
Pending 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
    • F24C15/2035—Arrangement or mounting of filters
    • 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
    • F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft

Definitions

  • the present invention relates to a filter unit for an extractor device and an extractor device with at least one filter unit.
  • the filter element is installed in the suction opening in such a way that it covers the area of the suction opening.
  • the area available for the suction opening is small.
  • the use of plate-shaped filter elements is also known in this type of extractor device, which can also be referred to as a trough fan or downdraft extractor.
  • the filter elements In order to be able to enlarge the area of the filter element, it is known to arrange two filter elements at an acute angle to one another. In particular, the filter elements here form a V shape.
  • the filter elements are held in a support frame that can be inserted into the extractor device. Due to the V-shaped arrangement of the filter elements in the filter unit, a larger filter surface, a better air flow and a better fat collection rate can be achieved. In addition, a lower back pressure is generated as a result.
  • a disadvantage of this embodiment is that after the filter unit has been introduced into the suction opening of the fume extractor device, the filter elements are located below the suction opening. This allows liquids or other contaminants to reach the filter elements unhindered and thus contaminate them, which in turn leads to the fact that the filter elements are saturated by the liquids or impurities and have to be cleaned more frequently.
  • this object is achieved by a filter unit for an extractor device, which has two filter elements and at least one support frame for the filter element.
  • the filter unit is characterized in that the carrier frame is designed to be movable in certain areas and the carrier frame has at least one handle through which at least a part of the carrier frame in which one of the filter elements is arranged can be moved.
  • a structural unit is referred to as a filter unit for an extractor device, which can be introduced into a suction opening of the extractor device and by means of which the air can be freed from impurities.
  • the filter unit has two filter elements.
  • Each of the filter elements preferably represents an elongated flat element.
  • the filter elements can represent flat surface elements. Alternatively, however, it is also possible for the filter element or elements to represent curved surface elements.
  • the filter elements can also each form a semicircle. If there are two filter elements, they can together form a cylinder shape.
  • the filter element can have filter material that is held in a filter holder, which can also be referred to as a filter frame.
  • the filter material can be, for example, expanded metal layers, a fleece, a knitted fabric or a knitted fabric.
  • the filter material can consist of wire.
  • the filter unit according to the invention has a support frame. The support frame is used to position and hold the filter elements or the filter holder in the filter unit.
  • the support frame preferably has a base and two side supports, which in particular form the end faces of the support frame.
  • the filter elements and in particular the filter holder preferably adjoin the floor.
  • the side supports can protrude from the bottom of the support frame and / or from the filter elements, in particular extend from the filter holder and form at least part of the end wall of the support frame.
  • the filter elements preferably have a flat shape and one dimension of the area is larger than the other dimension of the area. The longer dimension is called the length of the filter element and the shorter dimension is the height of the filter element.
  • the filter unit is preferably introduced into a suction opening which extends in the depth direction of a hob. The dimension of the filter unit which lies in the width direction of the hob is therefore referred to as the width of the filter unit. If the suction opening is oriented differently, the information must be transferred accordingly.
  • the filter elements are preferably received in the support frame in such a way that they are inclined downwards to the horizontal.
  • the filter elements can be in the vertical.
  • the filter elements are parallel to one another.
  • the filter elements are preferably held in the support frame in such a way that they are inclined to one another.
  • the distance between the two filter elements decreases from top to bottom.
  • the filter elements are at an acute angle to one another, at least in the operating position.
  • the operating position of the filter elements is the position in which they are located when the filter unit is inserted into the extractor hood and the extractor device can be operated.
  • the relative position of the filter elements to one another is referred to as the removal position, which they have in the state in which the filter unit can be removed from the suction opening of the extractor device or introduced into it.
  • the support frame is designed to be movable in certain areas.
  • a support frame in which at least one part of the support frame is movably mounted relative to at least one other part of the support frame.
  • the filter unit furthermore has a handle by means of which at least part of the support frame can be moved.
  • One of the two filter elements is arranged in the part of the support frame which is designed to be movable.
  • a handle is provided on the filter unit through which at least a part of the support frame on which one of the filter elements is arranged can be moved, the relative position of the filter elements to one another can be changed by actuating the handle. In particular, at least the relative distance between the two filter elements at their upper edge can be reduced.
  • the carrier frame can be brought from an operating position, which can also be referred to as the operating position, into a removal position, which can also be referred to as the removal position.
  • the filter unit according to the invention it is therefore possible that in the operating position it has a greater width, at least at the upper edge, than the width of the suction opening.
  • the filter element or elements are at least partially below the material into which the suction opening was made.
  • the material is preferably the cover plate of a hob, which is usually made of glass or glass ceramic.
  • the support frame is brought into a removal position by operating the at least one handle, in which at least the distance between the upper edges of the filter elements is smaller than in the operating position and in particular the width of the support frame is smaller than the width of the suction opening.
  • the filter unit has a handle by means of which the two filter elements can be moved.
  • the handle is thus connected to both filter elements, that is to say can act on them.
  • the action can be direct or indirect.
  • at least the filter holder of the filter element can be located between the handle and the filter element.
  • a transmission mechanism can be present between the handle and the respective filter element.
  • the transmission mechanism is used to transmit a through the operation of the handle caused movement on the respective filter element.
  • This transmission mechanism can comprise several transmission elements. For example, rails, spindles, eccentrics and the like can be used as transmission elements.
  • the handle is preferably rotatably held on the filter unit and in particular on the frame.
  • One advantage that can be achieved by providing only one handle by means of which the two filter elements can be moved is that the user can operate the handle with only one hand.
  • the at least one handle and preferably only one handle is arranged on the bottom of the support frame.
  • the handle extends from the floor over at least part of the height of the support frame.
  • the handle is preferably a rotary handle.
  • a rotary handle is a handle whose rotation acts on a transmission mechanism and which is simultaneously designed so that the user who grips this rotary handle lifts the filter unit on this rotary handle or lowers it into the suction opening can.
  • the handle particularly preferably has two end positions. In one end position, the filter elements are in an operating position with respect to one another and in another end position the filter elements are in a removal position with respect to one another.
  • the current relative position of the filter elements to one another can be fixed in one or both end positions.
  • the filter unit has two handles.
  • a filter element is moved through each handle.
  • the handles are preferably arranged so that they can be gripped with one hand.
  • the handles are therefore at a small distance from one another, which can be spanned by one hand.
  • the handles are preferably also in the operating position of the support frame at such a small distance.
  • the filter elements are mounted such that they can be moved relative to one another.
  • Filter elements whose position relative to one another can be changed are referred to as being mounted so as to be displaceable relative to one another.
  • the filter elements can therefore be moved in such a way that the distance between the filter elements is increased or decreased.
  • the inclination of the filter elements in the operating position can be the same as their inclination in the removal position.
  • the filter element can be firmly connected to a transmission element of a transmission mechanism that is located between the handle and the filter elements.
  • the inclination of the filter elements is also changed by the displacement.
  • the support frame consists of two frame parts.
  • one of the filter elements is held in each frame part.
  • the frame parts are connected to one another via a sliding guide.
  • the push guide can represent a rail guide.
  • the push guide can be, for example, an elongated hole pin guide in which a pin is arranged on a frame part and engages in an elongated hole provided in the further frame part.
  • each of the frame parts preferably comprises at least part of the base of the support frame. As a result, the base parts of the two frame parts can be at least partially displaced on top of one another.
  • the two base parts In the pushed together state, that is, in the removal position, the two base parts can lie completely on top of one another. In the pulled apart state, that is to say in the operating position, the base parts preferably continue to lie partially one above the other. Thus, even in the operating position, the base parts form a closed surface on which impurities can be collected.
  • the frame parts are connected via a flexible connecting element.
  • a connecting element that is elastically deformable is referred to as a flexible connecting element.
  • a bellows can be used as the flexible connecting element.
  • Both the push guide and the flexible connecting element can preferably each be prestressed in one direction.
  • the thrust guide and / or the connecting element are each pretensioned in such a way that, in the relaxed state, they push the two frame parts apart and, in particular, bring them into the operating position.
  • the user can apply a force to the two frame parts by means of which the slide guide or the connecting element is pressed together against the bias. Since the push guide or the connecting element is preferably pretensioned in the direction of the operating position, the correct positioning of the filter elements in the extractor device can be reliably ensured.
  • the filter elements are pivotably mounted in the filter unit.
  • the filter elements can be mounted in such a way that their upper edges can be moved towards and away from one another.
  • the lower edges on the other hand, can be at a fixed distance from one another.
  • the lower edges of the filter elements can be pivotably mounted on the edges of a base of the support frame.
  • the filter elements For pivoting the filter elements, they can be connected to the floor via a rotary hinge or a film hinge.
  • the filter elements, which are held in a filter holder are pivotably attached to the floor.
  • the rotary hinge or the film hinge lies between the base and the filter holder.
  • At least one handle is arranged on the upper edge of the support frame.
  • the handle can lie directly in the upper edge of the support frame or can be arranged offset downward by a small distance from the upper edge. This arrangement makes the handle or handles easy to reach for the user.
  • the support frame consists of two frame parts and each frame part has two side supports. Parts of the support frame that are at an angle that is not equal to zero to the floor are referred to as side supports.
  • the side supports are preferably located on the end faces of the support frame.
  • the side supports are provided on the longitudinal ends of the filter elements and in particular the filter holder in which the filter elements are each held and are perpendicular to the floor.
  • the side supports can form the entire end faces of the support frame.
  • the side supports can also be designed in such a way that they only form a small part of the end face.
  • the side supports can cover a triangular surface, for example, of which one side surface is attached to the filter element or filter holder, and the second side surface lies in the upper side of the support frame.
  • a handle is attached to the two side supports of a frame part.
  • the handle is therefore preferably formed by an elongate element, for example a rod.
  • a further handle is correspondingly attached to the second frame part.
  • the handles are located near the end of the side rail facing the other side rail. As a result, the distance between the handles is small and can be easily gripped by the user with one hand.
  • the invention relates to an extractor device with at least one filter unit according to the invention.
  • the fume extractor device has a suction opening and a fan arranged below the suction opening which sucks air downwards via the suction opening, and the filter unit is inserted into the suction opening.
  • This type of extractor device is also known as a downdraft extractor or downdraft ventilation.
  • FIG. 1 a first embodiment of a filter unit 1 according to the invention is shown.
  • the filter unit 1 has two filter elements 11.
  • the filter elements 11 are held in a support frame 10.
  • the filter elements 11 are arranged inclined to one another. In particular, the distance between the upper edges of the filter elements 11 is greater than the lower distance between the filter element 11.
  • the support frame 10 consists of two frame parts 100, 101.
  • the frame parts 100, 101 each comprise a filter holder 110, which is a flat frame represents and the edges of the filter element 11 surrounds.
  • each of the frame parts 100, 101 comprises a part of the bottom 102 of the support frame 10.
  • each frame part 100, 101 comprises the width of the part of the bottom 102 that each of the frame parts 100, 101 comprises larger than half of the base 102 of the support frame 10 formed from them. This means that the parts of the base 102 which are formed on the respective frame parts 100, 101 also overlap in the extended state.
  • the filter unit 1 furthermore comprises a handle 12.
  • the handle 12 represents a rotary handle which comprises a handpiece 120 and a shaft 121.
  • the shaft 121 extends upwards from the base 102, in particular from the base part which is formed on the frame part 101.
  • the handpiece 120 is provided at the upper end of the shaft 121.
  • the base parts of the two frame parts 100, 101 are connected to one another via a sliding guide 104.
  • the push guide is an elongated pin guide.
  • the elongated hole is made in the bottom part of the frame part 101.
  • the pin is attached to the bottom part of the frame part 100 and protrudes into the elongated hole.
  • the elongated hole extends in the width direction of the base 102.
  • two slide guides 104 are provided. Instead of one or two slot-pin guides, one or two rail guides (not shown) can also be provided.
  • the filter unit 1 is in Figure 1 shown in the operating position.
  • this position which can also be referred to as the extended position
  • the distance between the upper edges of the filter elements 11 and in particular the upper edges of the filter holder 110 is greater than the width of a suction opening (not shown) of an extractor device into which the filter unit 1 is inserted becomes.
  • the upper edges of the filter elements 11 and possibly also the lower edges of the filter elements 11 lie outside the vertical projection of the surface of the suction opening and thus under the material in which the suction opening is made.
  • the handle 12 is oriented in the operating position such that the elongated handpiece 120 extends in the width direction of the filter unit 1.
  • a display 107 is provided in the embodiment shown, in which the reaching of the operating position can be indicated by means of a coloring, for example red.
  • the display 107 is provided in the base 102 of the filter unit 1.
  • a removal position of the filter unit 1 is shown.
  • the removal position can be achieved in that the handle 12 is rotated.
  • the handpiece 120 is rotated clockwise or counterclockwise until the handpiece 120 extends in the longitudinal direction of the filter unit 1.
  • the removal position which can also be referred to as the moved together position
  • the distance between the edges of the filter elements 11 is smaller than the distance between the edges of the filter elements 11 in the operating position.
  • the inclination of the filter element 11 to one another in the removal position corresponds to the inclination in the operating position.
  • the distance between the upper edges of the filter elements 11 is smaller than the width of the suction opening (not shown) of the extractor device.
  • the filter unit 1 in the removal position, the filter unit 1 can be removed upwards through the suction opening and reinserted into it.
  • the user grabs the handpiece 120 of the handle 12 and lifts the filter unit 1 upwards.
  • the user can lower the filter unit 1 back into the suction opening and, as soon as the upper edges of the filter unit 1 are below the material in which the suction opening is made, turn the handle 12 to bring the filter unit 1 into the operating position bring.
  • each of the frame parts 100, 101 comprises a bottom part of the bottom 102 of the filter unit 1, a filter holder 110, a filter element 11 held in the filter holder 110 and two side supports 103.
  • the side supports 103 form the part of the frame part 100, 101 of the respective is on the end faces of the support frame 10.
  • a flexible connecting element 105 is provided along the side of the side supports 103 which faces the side supports 103 of the other frame part 100, 101 and along the side of the base part which faces the base part of the other frame part 100, 101.
  • the two frame parts 100, 101 are thus connected to one another via a bellows.
  • a handle 12 is provided on each of the frame parts 100, 101.
  • the handle 12 is in each case formed by a rod which extends in the longitudinal direction, that is to say perpendicular to the side supports 103.
  • the ends of a handle 12 are on the side supports 103 of a frame part 100, 101 attached.
  • the ends of a further handle 12 are correspondingly attached to the side supports 103.
  • the user can move the two frame parts 100, 101 towards one another, that is to say press them together, by grasping around the two handles.
  • the distance between the upper edges of the filter elements 11, which are held inclined in the support frame 10 is reduced. If the distance between the upper edges is less than the width of a suction opening (not shown) of an extractor device, the filter unit 1 can be introduced into the suction opening and removed from it.
  • the pretensioned flexible connecting element 105 expands and thus presses the frame parts 100, 101 apart. This increases the distance between the upper edges of the filter elements 11 and these are therefore below the surface of the material into which the suction opening is made. This is in the Figures 3 and 4 indicated schematically by the block arrows.
  • a third embodiment of the filter unit 1 according to the invention is shown. This differs from the second embodiment in that in this embodiment the support frame 1 is made in one piece.
  • a side strip 108 is provided on each of the end faces of the base 102 of the support frame 10, which consists of one part and extends upwards from the base 102.
  • the filter holders 110 are held on the base 102 via a bending point 106.
  • the side supports 103 in the third embodiment are designed in such a way that they do not form the entire end wall of the support frame 10. Rather, they only extend inward in the upper region of the filter holder 110, that is to say towards one another, and have a triangular shape.
  • a handle 12 In the area of the free tip of the triangle, one end of a handle 12 is attached in each case.
  • the handles 12 are designed as in the second embodiment.
  • a collecting pan is formed by the bottom 102, the side strips 108 and the lower parts of the filter holder 110, in which liquids such as fat or condensate can be collected.
  • the filter holder 110 is wrapped around the bending point 106, which can also be referred to as a kink or folding point, panned.
  • the bending point 106 thus functions as a hinge and preferably represents a film hinge. If the user lets go of the handles 12, the two filter holders 110 pivot outward about the bending point 106 until they have reached the operating position.
  • the movement of the filter holder 110 and thus the filter elements 11 is in the Figures 5 and 6 indicated schematically by block arrows.
  • a fourth embodiment of the filter unit 1 according to the invention is shown.
  • This embodiment differs from the third embodiment only in the design of the hinge 106.
  • the hinge 106 is designed as a multi-part hinge.
  • a hinge part is arranged on the lower edge of the filter holder 110 and a further hinge part is arranged on the longitudinal edges of the base 102.
  • These hinge parts can interact with one another via a hinge rod, which can also be referred to as a pin, and thus form the hinge 106.
  • the base 102 and the filter holder 110 are thus separate components that are connected to one another via the hinge 106.
  • the hinge 106 can also have a different configuration than the configuration shown in the fourth embodiment. In any case, however, the axis of rotation of the hinge 106 preferably lies in the longitudinal edges of the base 102.
  • the filter unit which has at least two filter elements, can be removed with one hand.
  • the new design of the filter unit allows the filter elements to be located under the glass ceramic in which the suction opening is made.
  • the filter unit is compressed by rotating a handle or pressing two handle bars together. Removal is thus made possible so that the filter elements lie under the glass in the operating position and can still be removed through the suction opening in the glass.
  • the two states could be indicated by a mechanical shift.
  • the states or Positions of the filter unit are indicated by color and / or symbols.
  • the user can remove the two filter elements of the filter unit at once in a support frame and clean them with one hand.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP20208000.8A 2019-12-18 2020-11-17 Unité de filtre et dispositif formant hotte aspirante pourvu d'unité de filtre Pending EP3839356A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19290119 2019-12-18

Publications (1)

Publication Number Publication Date
EP3839356A1 true EP3839356A1 (fr) 2021-06-23

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EP20208000.8A Pending EP3839356A1 (fr) 2019-12-18 2020-11-17 Unité de filtre et dispositif formant hotte aspirante pourvu d'unité de filtre

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4331705A1 (fr) * 2022-08-30 2024-03-06 Electrolux Appliances Aktiebolag Élément filtrant ou ensemble, unité d'extraction de fumées et appareil combiné

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1340944A2 (fr) * 2002-02-27 2003-09-03 BSH Bosch und Siemens Hausgeräte GmbH Hotte à évacuation des fumées et méthode d'échangement ou placement de filtres
EP3004746A2 (fr) * 2013-05-31 2016-04-13 Acticon AB Unité filtrante, son utilisation et procédé d'épuration d'air contaminé
EP3287701A1 (fr) * 2016-08-26 2018-02-28 BSH Hausgeräte GmbH Unité de filtre pour un dispositif d'aspiration de fumées et appareil combiné pourvu du dispositif d'aspiration de fumées et une unité de filtre
US20190212016A1 (en) * 2016-06-22 2019-07-11 Wilhelm Bruckbauer Device for extracting cooking vapors
WO2019197055A1 (fr) * 2018-04-10 2019-10-17 BSH Hausgeräte GmbH Dispositif de filtrage et dispositif d'évacuation de fumée comprenant un dispositif de filtrage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1340944A2 (fr) * 2002-02-27 2003-09-03 BSH Bosch und Siemens Hausgeräte GmbH Hotte à évacuation des fumées et méthode d'échangement ou placement de filtres
EP3004746A2 (fr) * 2013-05-31 2016-04-13 Acticon AB Unité filtrante, son utilisation et procédé d'épuration d'air contaminé
US20190212016A1 (en) * 2016-06-22 2019-07-11 Wilhelm Bruckbauer Device for extracting cooking vapors
EP3287701A1 (fr) * 2016-08-26 2018-02-28 BSH Hausgeräte GmbH Unité de filtre pour un dispositif d'aspiration de fumées et appareil combiné pourvu du dispositif d'aspiration de fumées et une unité de filtre
WO2019197055A1 (fr) * 2018-04-10 2019-10-17 BSH Hausgeräte GmbH Dispositif de filtrage et dispositif d'évacuation de fumée comprenant un dispositif de filtrage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4331705A1 (fr) * 2022-08-30 2024-03-06 Electrolux Appliances Aktiebolag Élément filtrant ou ensemble, unité d'extraction de fumées et appareil combiné

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