EP2863129A1 - Dispositif d'aspiration, notamment dispositif d'aspiration de vapeur - Google Patents

Dispositif d'aspiration, notamment dispositif d'aspiration de vapeur Download PDF

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Publication number
EP2863129A1
EP2863129A1 EP20140189756 EP14189756A EP2863129A1 EP 2863129 A1 EP2863129 A1 EP 2863129A1 EP 20140189756 EP20140189756 EP 20140189756 EP 14189756 A EP14189756 A EP 14189756A EP 2863129 A1 EP2863129 A1 EP 2863129A1
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EP
European Patent Office
Prior art keywords
suction
guide grooves
flow
housing
suction 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.)
Withdrawn
Application number
EP20140189756
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German (de)
English (en)
Inventor
Georg Emanuel Koppenwallner
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2863129A1 publication Critical patent/EP2863129A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • 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

Definitions

  • the invention relates to a trigger device, in particular a vapor extraction device according to the preamble of claim 1.
  • Deduction devices in particular extractor device for detecting and extracting fumes, vapors and other fluid or gaseous media in the kitchen or in the industrial sector are well known.
  • the suction of the media is carried out by generating a suction flow over at least one narrow suction port, for example, a surface or Schlitzabsaugung.
  • Corresponding suction devices are for example in the DE 202011005698 U1 or the DE 20207549 U1 described. In such exhaust devices, however, the detection effect decreases sharply with the distance to the suction source, in particular the suction port.
  • blast-suction processes in which the detection effect is also made possible by fumes or vapors which are produced farther away from the suction opening or area by generating an additional blow flow oriented in the direction of the suction source .
  • the guidance and orientation of the blast flow is effected by the adhesion effect on the smooth outer surfaces of the housing of the suction device and in hole vortex method additionally by guiding the blast flow in the exhaust openings. After blowing, the flow is discontinued.
  • a blast flow with a tangential flow component i. blown out with a angular momentum component to a central suction port.
  • a method and an associated fan or suction device for influencing the flow behavior of turbomachines in which the turbomachine has a flow leading surface having at least one structured surface portion, wherein at least in the Surface areas of the turbomachine, in which the flow is detached from the surface and / or turbulent flows occur, are generated by means of a structured surface portion longitudinal vortex, through which the flow is structured.
  • the turbomachine has a flow leading surface having at least one structured surface portion, wherein at least in the Surface areas of the turbomachine, in which the flow is detached from the surface and / or turbulent flows occur, are generated by means of a structured surface portion longitudinal vortex, through which the flow is structured.
  • a vapor extraction element for arrangement above at least one vapor source is known, which has a radial fan with curved at least against the direction of rotation blades, in which the air to be withdrawn via a nozzle train is fed substantially centrally.
  • the nozzle train has baffles which form a feed channel running along the axis of rotation of the radial fan.
  • the present invention seeks to provide a trigger device, in particular extractor device with improved detection effect, which allows influencing the intake flow. Based on the features of the preamble of claim 1, the object is achieved by its characterizing features.
  • the withdrawal device comprises means for influencing the flow direction of the intake flow, which are formed by a plurality of channel-like guides, at least in sections along the adjoining the suction port outer surface of the housing in the direction of the suction port extend. Due to the structuring according to the invention of the surface of the housing in the region of the suction opening, suction flow is particularly advantageously generated by the suction effect of the sink, which is conducted over a longer distance and influenced in such a way as to produce a so-called channel flow compared to the prior art.
  • the gutters Due to the branched gutter structure, the gutters can also be branched into areas of the suction device in which in normal surface suction or conventional planar blow suction hardly a detection effect occurs. Since the method works with both active and passive gutter flows, it has the potential to be used in low-cost extraction devices, ie mass-produced products.
  • a multiplicity of flows are generated by the guide grooves, which can also extend transversely to the "main flow direction" of the suction device and have the purpose of transporting fluids or pollutants to the suction opening in such a way that the suction effect or the volume flow of the suction device is considerably increased ,
  • one guide channel has at least two opposite open ends and a channel channel connecting them, wherein at least one end of a guide channel opens into the suction opening.
  • the guide grooves are formed by the adjoining the suction or surrounding surface portions of the housing, and preferably by introduced into the surface portions of the housing recesses or depressions or a corresponding deformation of the outer wall of the housing.
  • the suction opening are formed by a slot-like or planar opening in the housing, wherein the flat suction opening has a square, rectangular, polygonal, circular, kidney-shaped, cardioid-shaped, elliptical, superellipsoidal, superformula-shaped or spiralarmförmigen cross-section.
  • the suction device additionally has means for generating a blast flow and supplying the blast flow via the guide grooves to the intake opening. In this way, a blast flow can be generated, which is fed into the guide grooves and enhances the intake flow.
  • the guide troughs have a part-circular, angular, round, V-shaped, inclined or T-shaped channel cross-section.
  • the guide grooves have a groove width and a gutter depth, but the gutter depth is preferably larger than the gutter width.
  • the surface of the channel cross-section of the guide grooves increases in a preferred embodiment in the direction of the suction opening.
  • the channel-like guides can either be arranged on or formed by a curved surface section of the housing.
  • the guide grooves are formed by means of two adjacent guide plates, wherein a plurality of such guide plates are either arranged directly on the housing surface or part of a housing guide ring, in particular an attachment component.
  • the guide grooves are designed as open guide grooves or at least partially closed guide grooves.
  • the subject of the invention is a Gebläseeinströmring for use in a suction device according to the invention, which has a plurality of guide grooves, which extend in the direction of the Gebläseeinströmring enclosed by the suction on the ring surface.
  • 1 denotes in each case a take-off device, in particular a vapor extraction device, which in each case has at least one housing 2, in particular a hood-like housing body.
  • At least one suction port 3 is provided, which may have a different geometric configuration, in particular cross-sectional shape and surface depending on the embodiment.
  • the suction opening 3 may be formed, for example in the form of a slot-like or planar opening, wherein the flat Opening, for example, a square, rectangular, polygonal, circular, kidney-shaped, cardioid-shaped, elliptical, superellipsenförmigen, superformula-shaped or spiralarmförmigen cross-section.
  • Such extraction devices or extractor devices 1 have a suction device, for example in the form of a drum rotor or the like suction devices such as a radial fan for generating a flow sink, which is designed to generate a suction flow AS via the suction port 3.
  • a filter device 4 may also be provided in the housing 2 of the extraction device or extractor device 1 for filtering the swaths, vapors or the like of fluid or gaseous media sucked in by means of the intake flow AS.
  • FIG. 1 shows by way of example in a simplified sectional view a longitudinal section through a designed as an extractor hood extractor device 1, the housing 2 a hood-like housing body with a suction in the intake 1 'of the extractor device 1 arranged suction port 3, which has a circular cross-section in the present embodiment. Further, the hood-like housing body 2 on the suction region 1 'opposite side joins a chimney-like exhaust duct 5 at.
  • a filter device 4 is provided in the housing 2, for example.
  • a suction device not shown, preferably accommodated in the housing 2, a flow depression is produced which causes an intake flow AS via the suction opening 3.
  • the intake flow AS is preferably oriented along a vertical axis VA of the extractor device 1.
  • the extractor device 1 has means for influencing the flow direction of the intake flow AS, which are formed by a multiplicity of guide grooves 6 which extend at least in sections along the surface sections 2a of the housing 2 adjoining the intake opening 3 in the direction of the intake opening 3.
  • a guide channel 6 has, for example, two opposite open ends 6 ', 6 ", wherein at least one end 6' of a guide channel 6 opens into the suction opening 3 and, for example, the The suction effect of the depression of the extractor device 1 generates a flow in the guide channels 6 which influences the intake flow AS, in particular the flow direction of the extractor device 1. This flow becomes also referred to below as the channel flow RS.
  • a channel channel 6"' forms.
  • the guide channel 6 may be designed differently with regard to the channel cross-section RQ, the channel depth RT and / or the channel width RB.
  • the area of the channel cross-section RQ increases in the direction of the intake opening 3 or is dimensioned such that both the intake ambient air and a generated channel flow RS can be guided therein.
  • a plurality of guide grooves 6 are arranged side by side, which are each formed identical to each other, in terms of channel cross-section RQ, gutter depth RT and / or the channel width RB.
  • the guide grooves 6 extend in each case in the direction of the suction opening 3, preferably with at least one radial and / or tangential directional component with respect to the center of the suction opening 3 or the vertical axis VA.
  • the guide grooves 6 extend, for example, radially to the center or center of the circular intake opening 3 and have no tangential component.
  • the gutter depth RT is greater than the groove width RB to ensure the emergence of a sufficiently strong groove flow RS.
  • the gutter depth RT is for example between 1 cm and 10 cm, wherein the gutter width RB can be between 0.5 cm and 15 cm.
  • the dimensions of the guide channel 6 are adapted to the dimensions of the suction device or the drum rotor. For example, when using a drum rotor 8 with an impeller diameter of about 150 mm, the gutter depth RT is between 2 cm and 5 cm and the gutter width RB between 0.5 cm and 7 cm.
  • the channel length RL is also dependent on the diameter of the intake opening 3 and the impeller diameter of the drum rotor 8 and preferably corresponds to 10% to 60% of the respective diameter.
  • the guide grooves 6 At a Impeller diameter of about 150 mm, the guide grooves 6 so that, for example, a groove length RL between 15 mm and 90 mm.
  • the guide grooves 6 are formed by the adjoining the suction opening 3 or these surrounding surface portions 2a of the housing 2, and preferably by introduced into the surface portions 2a of the housing 2 recesses, depressions or a corresponding deformation of the outer wall of the housing 2. Thus form these are the outer wall of the housing 2 or are mounted on this.
  • the guide grooves 6 receiving or forming surface portions 2a of the housing 2 may be formed curved at least in sections.
  • the guide grooves 6 are formed by a plurality of guide blades 9, which are preferably arranged in the region of the adjoining the suction opening 3 or these surface portions 2a of the housing 2.
  • two adjacent guide blades 9 each include a guide channel 6.
  • the guide plates 9 are either connected directly to the housing 2 or formed integrally therewith.
  • the guide blades 9 may be part of an attachment component 10, which has, for example, an annular support plate 10.1 with a feed opening 3 adapted to the through opening 10.2, to which the guide blades 9 are fixed or formed integrally therewith.
  • an attachment component 10 may be made of metal or plastic, for example.
  • the attachment component 10 can also be retrofitted to existing extraction devices or extractor devices 1 in order to achieve the advantages of the "channel guide” according to the invention.
  • the guide blades 9 have, for example, a wall thickness which is between 0.05 mm and 8 mm. The course of the wall thickness along the radial extent of the guide channel 6 or guide plate 9 is approximately uniform or decreases slightly in the direction of the vertical axis VA.
  • the guide grooves 6 may be formed such that they combine to form a larger guide trough and / or in two or more guide troughs split, wherein the guide grooves 6 preferably converge on a common center.
  • secondary guide channels and main guide channels may be provided which have differently dimensioned cross-sectional areas, wherein the main guide channels preferably have a larger cross-sectional area than the secondary guide channels.
  • the secondary guide channels preferably open at an acute angle in the main guide channels. This results in a tree-like or plant-like branching of the guide grooves 6.
  • the guide grooves 6 taken by themselves may have a curvature and / or terminate the free end 6 'of the guide grooves 6 opening into the suction opening 3 with the edge of the suction opening 3, i. the guide grooves 6 extend obliquely to the edge of the suction opening 3, in particular in the case of a slot-like suction opening 3rd
  • the suction device or extractor device 1 means for generating a Blasströmung BS and feed the Blasströmung BS via the guide grooves 6 to the intake port 3 have.
  • a blower arrangement not shown in the figures is preferably provided, via which a blowing flow BS is generated, which is introduced via a suitable channel system and associated outlet nozzles in the region of the other end 6 "of the respective guide channel 6 in the channel channel 6" 'and by means of Guide grooves 6 is guided in the direction of the suction port 3, ie the intake flow AS supports.
  • FIG. 2 is exemplary in FIG. 1 illustrated extractor hood shown, which, however, additionally comprises means for generating a blast flow BS.
  • a feed channel 7 which extends in a section annularly around the exhaust air duct 5 and thus forms an annular feed space in cross-section, which is a via in the FIG. 2 blower assembly not shown generated Blasströmung BS to the free ends 6 "of the guide troughs 6 out, via nozzle-like openings of the annular feed space the laterally into the respective channel channel 6"'of the guide trough 6 open.
  • FIGS. 3 and 4 each is a perspective view of a fume extractor 1 according to FIG. 2 shown with active bubble flow.
  • the guide grooves 6 radially oriented to the central axis of the circular suction port 3, while in the embodiment according to FIG. 4 are curved and extend tangentially to the central axis of the circular intake opening 3.
  • An extractor device 1 with guide grooves 6 according to the invention can thus be operated in an active embodiment variant with a blowing flow BS or in a passive embodiment variant with groove flow RS generated by means of suction flow.
  • FIGS. 5 (A) to (M) different channel cross sections RQ of the guide grooves 6 are shown by way of example; and a simple rectangular cross section in FIG. 5 (A) , a U-shaped cross section in FIG. 5 (B) , a semicircular cross-section in FIG. 5 (C) , a U-shaped cross-section with rounded upper edges in FIG. 5 (D) , a rectangular cross section with rounded corners in FIG. 5 (E) , a rectangular cross-section with rounded corners and a round central gutter floor in FIG. 5 (F) , a rectangular cross section with rounded corner areas and a round central gutter recess in FIG. 5 (G) , a rectangular cross-section with lateral bulge in FIG.
  • a guide trough 6 can also have different cross-sectional shapes at the two opposite ends 6 ', 6 "which merge into one another.
  • the guide trough 6 can also run obliquely to the vertical axis VA.
  • the guide grooves 6 are formed, for example, as open guide grooves, ie the guide grooves 6 are formed open on the side facing away from the trigger device or extractor device 1 side. Also, the guide grooves 6 may be formed at least partially tubular or in the form of closed guide grooves, ie the opening of the guide grooves 6 facing away from the extraction device or extractor device 1 can be designed to be closed.
  • FIGS. 6a, b is a schematic view of the intake 1 'of a fume extractor 1 shown with a slot-like suction port 3, in which the guide grooves 6 extend obliquely to the straight housing edge enclosing the suction port 3, in Fig. 6a a plurality of outer guide grooves 6a on the outwardly adjoining housing surface portions 2a and in Fig. 6b both a plurality of outer and inner guide grooves 6a, 6b in the outside and inside of the slot-like suction port 3 subsequent housing surface portions 2a, b.
  • the lines of the guide grooves 6a, 6b, in particular the angle to the slot-like suction port 3 is arbitrary.
  • FIG. 6c a fume extractor 1 is shown with an annular suction port 3 with outer guide grooves 6a.
  • FIG. 6d shows a fume extractor 1 with a circular suction port 3 with also outer guide grooves 6a.
  • a passive channel flow RS is generated via the suction.
  • FIG. 7a shows a cross section through a fume extraction device 1 with a curved housing surface 2a with guide grooves arranged thereon 6.
  • the guide grooves 6 are hereby separated from each other by a respective guide blade 9, which is for example plate-shaped.
  • the extractor device 1 has on the upper side outlets for a blast flow BS, via which the blast flow BS is guided or blown into the guide grooves 6.
  • FIG. 7b shows a perspective view of the along the curved housing surface 2a extending guide grooves 6, which are preferably parallel to each other, in vertical planes.
  • the suction opening 3 is formed in the present case by a lattice-like suction element 3 ', which has a plurality of small, matrix-like arranged suction openings.
  • FIG. 7c is a front view of the extractor device 1 is shown, on the open to the front guide grooves 6, which are separated in the present embodiment by partitions.
  • FIGS. 8a, b show embodiments of a suction 1 'a fume extractor 1 with a circular suction port 3, in which the channel guides 6 are formed by introduced into the housing surface recesses or depressions.
  • FIG. 8a shows, for example straight guide grooves 6 and Fig. 8b curved guide grooves 6 in a perspective view. The free ends 6 'of the guide grooves 6 open in each case directly into the suction port. 3
  • a Gebläseeinströmring 7 a blower arrangement is shown, which is provided with the guide grooves 6 according to the invention.
  • the Gebläseeinströmring 7 may for example also be designed as an attachment component 10.
  • the Gebläseeinströmring 7 has a plurality of guide grooves 6, which extend in the direction of the suction port 3 on the ring surface.
  • the guide grooves 6 are thus formed for supplying a flow into the circular suction opening 3 at an inflow angle a, which is enclosed by a tangent to the inner contour of the inflow opening 3 and the guide grooves 6.
  • this inflow angle a can be chosen differently.
  • Figure 9a-f show an arrangement of the guide grooves 6 using a constant inflow angle a over the entire circumference 0 ⁇ f ⁇ 360 °. This results in a regular course of the guide grooves 6, ie arranged at a constant distance from each other and constant inflow angle a over the circumference.
  • FIGS. 9c, d show here in addition to Gebläseeinströmring 7, the impeller of a drum rotor 8 a fan assembly which rotates clockwise about vertical axis VA.
  • the orientation of the blower arranged on the Gebläseeinströmring 7 guide troughs 6 either a flow in the clockwise direction, ie in the direction of rotation of the drum rotor 8 or a flow counterclockwise, ie against the direction of rotation of the drum rotor 8 are generated.
  • This is a special application of passive channel flows RS.
  • With an orientation of the guide grooves 6 in the direction of rotation of the drum rotor 8 results in a reduction of the noise of the drum rotor 8 and a volume flow increase.
  • FIGS. 10 and 11 each show a perspective plan view of a Gebläseeinströmring 7 whose guide grooves 6 and guide plates 9 are curved, which have different gutter depths RT.
  • the guide grooves 6 have a rectangular channel cross section RQ.
  • Guide grooves 6 and guide plates 9 are oriented in the direction of rotation of the drum rotor 8 about its axis of rotation or the vertical axis VA.
  • the guide grooves 6 and guide plates 9 can be oriented counter to the direction of rotation of the drum rotor 8 about its axis of rotation or the vertical axis VA.
  • the Gebläseeinströmring 7 thus forms a "gutter ring" with guide grooves 6 increased gutter depth RT. As a result, an impeller of a fan similar structure is generated.
  • FIGS. 12a . b show a trained as an attachment component 10 Gebläseeinströmring with guide blades 9, which have a low wall thickness, preferably a wall thickness less than 1 mm.
  • the guide blades 9 are preferably elastically deformable and / or spring-like, ie are deformed by the flowing past at least slightly elastic.
  • the guide blades 9 may be made for example of plastic or a similar elastically deformable material.
  • the guide blades 9 of the attachment component 10 may be provided with a cover 11, so that at least partially closed guide grooves 6 are formed.
  • a cover 11 with two sections 11.1, 11.2 indicated different radial width, which preferably extends over all the guide blades 9 and thus forms an annular cover 11.
  • FIGS. 13a, b By way of example, an embodiment variant of a fan inflow ring 7 is shown, in which the gutter depth RT or the height of the guide blades 9 increases in the direction of the axis of rotation of the drum rotor 8 or the vertical axis VA or in the radial direction and decreases again after exceeding a peak value at the level of the intake 3 ends.
  • the guide blades 9 are in turn curved.
  • FIG. 14 shows an alternative embodiment of an integrated into the housing 2 Gebläseteinströmringes 7 in a schematic plan view.
  • the gutter length RL takes in this case along the circumference of the intake opening 3, so that a helical arrangement of the guide grooves 6 is formed.
  • FIG. 15 shows an arrangement of a drum rotor 8 and a Gebläseeinströmring 7, which is made for example of a one-piece body 12.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP20140189756 2013-10-21 2014-10-21 Dispositif d'aspiration, notamment dispositif d'aspiration de vapeur Withdrawn EP2863129A1 (fr)

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DE102013111572 2013-10-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105605643A (zh) * 2016-03-04 2016-05-25 珠海格力电器股份有限公司 出风结构及具有其的抽油烟机
CN109539355A (zh) * 2018-12-28 2019-03-29 佛山市顺德区美的洗涤电器制造有限公司 用于清洗油烟机的控制方法、装置、油烟机及集成灶

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015013704A1 (de) 2015-10-22 2017-04-27 Georg Emanuel Koppenwallner Exponentielle Spiralen als Schaufelkontur für Standard-Gebläse und Gebläse mit Rinnenring
DE102020002604A1 (de) 2020-04-30 2021-11-04 Georg Emanuel Koppenwallner Drallfilter oder Richtungsfilter am Fallbeispiel einer Kunstabzugshaube

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29513292U1 (de) 1995-08-18 1996-12-19 Gutmann Gmbh Dunstabzugselement
EP1227283A1 (fr) * 1999-10-26 2002-07-31 Daikin Industries, Ltd. Dispositif d'aspiration et d'evacuation
DE20207549U1 (de) 2002-05-08 2002-08-29 Berbel Ablufttechnik Gmbh Vorrichtung zum wirkungsvollen Abscheiden von Schwebteilchen aus einem Luftstrom
US20050164628A1 (en) * 2003-12-31 2005-07-28 Postech Foundation Local exhaust ventilator with rotating swirler
DE102009003957A1 (de) * 2008-09-18 2010-03-25 Berling, Udo Dunstabzugshaube
DE202011005698U1 (de) 2011-04-28 2011-09-26 Wilhelm Bruckbauer Kochfeld mit zentraler Absaugung von Kochdünsten nach unten
WO2012062249A1 (fr) 2010-06-08 2012-05-18 Koppenwallner Georg E Procédé pour influencer le comportement d'écoulement de turbomachines, en particulier d'appareils soufflants ou aspirants, ainsi qu'appareils soufflants ou aspirants correspondants

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29513292U1 (de) 1995-08-18 1996-12-19 Gutmann Gmbh Dunstabzugselement
EP1227283A1 (fr) * 1999-10-26 2002-07-31 Daikin Industries, Ltd. Dispositif d'aspiration et d'evacuation
DE20207549U1 (de) 2002-05-08 2002-08-29 Berbel Ablufttechnik Gmbh Vorrichtung zum wirkungsvollen Abscheiden von Schwebteilchen aus einem Luftstrom
US20050164628A1 (en) * 2003-12-31 2005-07-28 Postech Foundation Local exhaust ventilator with rotating swirler
DE102009003957A1 (de) * 2008-09-18 2010-03-25 Berling, Udo Dunstabzugshaube
WO2012062249A1 (fr) 2010-06-08 2012-05-18 Koppenwallner Georg E Procédé pour influencer le comportement d'écoulement de turbomachines, en particulier d'appareils soufflants ou aspirants, ainsi qu'appareils soufflants ou aspirants correspondants
DE202011005698U1 (de) 2011-04-28 2011-09-26 Wilhelm Bruckbauer Kochfeld mit zentraler Absaugung von Kochdünsten nach unten

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105605643A (zh) * 2016-03-04 2016-05-25 珠海格力电器股份有限公司 出风结构及具有其的抽油烟机
CN109539355A (zh) * 2018-12-28 2019-03-29 佛山市顺德区美的洗涤电器制造有限公司 用于清洗油烟机的控制方法、装置、油烟机及集成灶

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