EP3368773B1 - Dispositif d'aspiration d'air pour une hotte aspirante - Google Patents

Dispositif d'aspiration d'air pour une hotte aspirante Download PDF

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Publication number
EP3368773B1
EP3368773B1 EP16775148.6A EP16775148A EP3368773B1 EP 3368773 B1 EP3368773 B1 EP 3368773B1 EP 16775148 A EP16775148 A EP 16775148A EP 3368773 B1 EP3368773 B1 EP 3368773B1
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EP
European Patent Office
Prior art keywords
motor shaft
air intake
fan
extraction fan
intake 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
EP16775148.6A
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German (de)
English (en)
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EP3368773A1 (fr
Inventor
Udo Berling
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.)
Berling Aero Ip Ug (haftungsbeschrankt)
Original Assignee
Berling Aero Ip Ug (haftungsbeschrankt)
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Priority to PL16775148T priority Critical patent/PL3368773T3/pl
Publication of EP3368773A1 publication Critical patent/EP3368773A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
    • 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

Definitions

  • the invention relates to an air intake device for a fume extractor and a hood with an air intake.
  • Extractor hoods with air intake devices are known in various embodiments.
  • WO 2012/130438 and WO-A-2012/130437 is described.
  • the air intake devices of extractor hoods should be comparatively easy to clean. This is especially true for the fan, which may be advantageous in terms of flow design as axial or radial fan and should be located immediately behind the air inlet opening of the fan housing. It is also advantageous from a hygienic point of view if fat filters are dispensed with and the removal of fat drops or other particles entrained by the air flow is separated by deflection of the air flow.
  • extractor hoods are described, which are fluidically designed such that the aforementioned features of an air intake device are given.
  • the object of the invention is to provide an air intake device for an extractor hood, in which, for example, for cleaning purposes Fan can remove from the engine, the connection of the motor shaft and fan is sufficiently stable that the fan during rotation undergoes substantially no rotational movement superimposed further movements.
  • the fan can be mounted detent on the motor shaft.
  • the latching connection device has at least one spring-loaded latching projection and a rear engagement projection corresponding thereto.
  • the at least one latching projection is arranged either on the outer circumferential surface of the motor shaft or on the inner peripheral surface of a receiving recess of the fan wheel.
  • the rearward projection is alternatively arranged on either the inner circumferential surface of the receiving recess of the fan or on the outer peripheral surface of the motor shaft.
  • there are at least three or at least five such latching projections which may be designed as spring-loaded balls (also called pressure balls).
  • the latching connection device prevents the fan from automatically coming off the motor shaft.
  • the latching connection device may not be reliable enough to ensure that the fan wheel is rotatably taken with rotation of the motor shaft of this. It may thus happen under certain circumstances that slip occurs between the motor shaft and the fan wheel during rotation, which is fundamentally undesirable.
  • the invention begins by the air intake device is provided with a rotary driving device for rotational driving of the fan by the rotating motor shaft.
  • This rotary driving device has a driving projection on either the motor shaft or the receiving recess of the fan and at least one corresponding movement limiting surface for the driving projection on either the receiving recess of the fan or the motor shaft.
  • the fan wheel and motor shaft can rotate relative to one another only insofar as the at least one driving projection bears against the at least one movement limiting surface, so that the motor shaft now rotates the fan wheel via the driving projection.
  • the advantage of this measure is that the fan wheel can be attached to it in essentially almost any relative rotational position to the motor shaft and that the motor shaft and fan wheel have a defined rotational position during rotation. For this position, both rotary components (motor shaft and fan wheel) are balanced so that the fan wheel "runs smoothly” even at high speeds.
  • the driving projection of the rotary driving device can thus along a partial circle line, which defines a freewheeling path, move when the motor shaft and fan are plugged together, up to the stop on the movement limiting surface.
  • the movement limiting surface may be formed as a projection, or it forms the end of a driving groove for receiving the driving projection.
  • the driving groove also extends in a circular or partial circular shape and is formed either on the end face of the motor shaft or in the bottom surface of the receiving recess of the fan wheel.
  • the driving groove extends over almost 360 °, wherein in the driving groove a barrier web is formed, on its one side the beginning, and thus a first movement boundary surface, and on the other side, the end, and thus a second movement boundary surface, the driving groove defines. On one of these sides of the barrier web then the driving projection is on to turn the fan when rotating the motor shaft.
  • the driving projection itself can thus protrude decentralized from the end face of the motor shaft and extends in particular parallel to the axial extent of the motor shaft.
  • the driving projection may conveniently be arranged fixed.
  • the barrier bar or the projection defining the movement limiting surface for the driving projection should be as narrow as possible, so that the motor shaft and fan wheel can not be put together only in an extremely small angular range (which is the case when the driving projection during insertion of both components axially against the movement limiting surface definingfursbegrenzungs vom projection (eg barrier web) abuts).
  • the fan is axially stretched against the motor shaft and is centered radially to the motor shaft.
  • the radial centering can be advantageously realized by the spring-loaded locking projections, which are advantageously distributed uniformly distributed for this purpose over the circumference of the motor shaft and the receiving recess.
  • the axial bias of the fan against the end face of the motor shaft is advantageously also achieved via the latching connection means by their latching projections abut in the plugged onto the motor shaft state of the fan on the Schugreifvorsprung.
  • the ferderbelasteten locking projections whose spring forces act radially outward, on the Hintergreifvorsprung an axial biasing force on the fan so that it automatically stretches against the end face of the motor shaft.
  • the axial tension of the fan against the end face of the motor shaft is thus realized in that move the spring-loaded locking projections when attaching the fan to the motor shaft on the Hintergreifvorsprung the locking connection means, under engagement against the biasing force of the locking projections, when the locking projections the Schugreifvorsprung have happened, they automatically move out again due to the spring force.
  • the design is now designed so that the latching projections abut against the trailing edge of the rearward projection, as viewed in the slip-on direction, when the end face of the motor shaft contacts the bottom surface of the receiving recess of the fan wheel.
  • the driving projection of the rotary driving device necessarily requires an eccentric mass, wherein the unbalance generated thereby must be compensated by a counterweight.
  • the motor shaft or the receiving recess of the fan wheel made of light metal, such as aluminum or an aluminum alloy.
  • the driving projection is expediently made of a harder material than the light material, namely, for example, made of steel.
  • the driving projection diametrically opposite to the motor shaft or the receiving recess of the fan must be introduced an additional mass.
  • the mass balance due to the formation of the projection defining the movement limiting surface or, as described above in connection with the driving groove, of the locking bar.
  • the mass reduction can be offset axially and / or radially to the aforementioned position. That is, instead of adding mass at a diametrically opposite position along an imaginary radial line originating from the center point, on which the entrainment projection or the movement boundary surface projection lies, mass can be taken off. Both measures described above for balancing motor shaft and fan wheel can be used in combination.
  • the driving projection is aligned parallel and eccentric to the central axis of the motor shaft and that the freewheeling path as a concentric to The central axis of the motor shaft extending, circular and extending over less than 360 ° driving groove for receiving the driving projection is formed, which is formed either in the bottom surface or in a substantially parallel to this surface of the receiving recess of the fan or in the end face of the motor shaft the driving groove has the movement limiting surface at at least one of its ends.
  • the free-wheeling path extends as far as possible over almost 360 °, so that the fan wheel can be attached to the motor shaft in almost all relative rotational positions without the driving projection of the rotary driving device colliding with the movement-limiting surface.
  • a web forming the movement limiting surface is arranged in the driving groove between its two ends.
  • the driving projection is resiliently biased and thus engageable against the spring force and automatically disengaged due to the spring force.
  • the driving projection on the outer peripheral surface of the motor shaft or on the inner peripheral surface of the receiving recess of the fan wheel is arranged and further for engaging behind either on the inner peripheral surface of the receiving recess of the fan or on the outer peripheral surface of the motor shaft
  • the rotational drive means is resiliently biased and when the freewheeling path of the rotary driving device extends along the Deutschengreifvorsprungs the rotary driving device.
  • the Hintergreifvorsprung the rotary driving device may extend substantially parallel to the Hintergreifvorsprung the locking connection means, wherein it may also be appropriate that the driving projection of the rotary driving device one of the latching projections of the latching connection unit and that the Hintergreifvorsprung the rotary driving device is identical to the Deutschengreifvorsprung the latching connection device.
  • the receiving recess of the fan should be made of light metal material. Incidentally, however, the weight of the fan should be as low as possible, with low-cost materials are used. It is advisable that the fan has an outboard, including fan blades exhibiting peripheral part and a hub part enclosed by this and that in the hub part, the receiving recess of the fan is formed.
  • peripheral part with, among other things, the fan blades made of plastic, with which the hub part of the fan wheel is molded with its receiving recess.
  • the hub part and the motor shaft are balanced and / or the fan is balanced in its under attachment of the driving projection on the movement limiting surface on the motor shaft state together with the motor shaft.
  • the latching connection device has at least five evenly spaced latching projections and that the latching projections with attached to the motor shaft fan wheel for centering the fan relative to the motor shaft under spring tension to the Schugreifvorsprung the locking connection unit and / or abut the inner surface of the receiving recess of the fan or the outer peripheral surface of the motor shaft.
  • the locking projections in the plugged onto the motor shaft state the fan wheel for exerting an axial force provided for the axial pressing system of the fan wheel on the motor shaft to the fan wheel with spring tension on the Deutschengreifvorsprung the locking connection device.
  • the housing has an intake port for the suction of air.
  • the fan Directly behind the inlet opening is expediently the fan in the form of preferably an axial or radial fan.
  • the fat drops or the like. Particles of the sucked air flow but now also divorced from the fan, so that there is a risk that when the fan stopped these drops of grease dripping down through the inlet opening of the air intake of the hood.
  • a cover part provided with recesses is expediently introduced into the inlet opening, an open annular space being created around the cover part, via which, as well as via the recesses, air can be drawn in. But it is also possible that the cover has no recesses, so far as it is closed.
  • the cover serves as a grease trap, surprisingly even if there are recesses, i. Has holes.
  • the cover member formed as a disk or plate member with its plurality of holes nonetheless prevents grease leaking on the cover member from passing downwardly through the openings.
  • the formation of the cover as a perforated plate thus also serves to reliably prevent the dripping of fat from the fan and through the inlet opening of the housing therethrough.
  • the openings are provided with curved or partially straight polygonal opening edges.
  • triangular, hexagonal or honeycombed opening edges offer here.
  • the two housing parts are detachably connected to each other and that a peel-off handle on the fan and / or the second housing part attachable is, for removing the fan from the motor shaft and / or for removing the second housing part of the first housing part.
  • the pull-off handle is a convenient way to first remove the second housing part and possibly then remove the fan or both at the same time for cleaning. In the latter case, the second housing part and the fan wheel remain connected to each other by the peel-off handle and can be cleaned in this state, for example in a dishwasher. But it is also conceivable that you fan and second housing part and Abziehgriff separated from each other and then cleans.
  • the pull-off handle is provided with a grip part and a connecting part projecting therefrom for attachment to the fan wheel and / or the second housing part. It may be advantageous that the Abziehgriff or its connecting part by means of a screw or bayonet connection means on the fan and / or the second housing part is attachable.
  • the inlet opening on the second housing part is formed in extension of the motor shaft and if the connecting part of the pull-off handle is attachable to the fan wheel, wherein the connecting part of the pull-off handle extends through the inlet opening to the motor shaft and the grip part of the peel-off handle is supported on the second housing part.
  • an automatically self-closing valve is arranged, which automatically opens during insertion of the connecting part of the handle part and automatically closes when moving out of the connecting part of the handle part, wherein the closure valve is a flap valve or the closure valve with an elastomeric membrane Phillips has.
  • the closure valve of the passage opening of the cover can thus be pierced so to speak through the connecting part of the peel-off, whereby it automatically closes again when removing the peel-off handle.
  • Corresponding sealing elements and in particular elastic plugs with cross slots or star-shaped slots are known in principle. Even automatic flap valves, in which a hinged lid part automatically escapes the connecting part of the peel-off handle when the connecting part is inserted into the passage opening, can be used here.
  • an insertion aid with insertion oblique surface for centric alignment of the second housing part relative to the first housing part when assembling the two housing parts is expedient.
  • This insertion aid can have a plurality of insertion webs, preferably evenly arranged around the second housing part, or else also a ring element, wherein in both cases the surfaces facing the second housing part are provided with insertion oblique surfaces.
  • the ring element is / are therefore the inside and / or inwardly projecting webs formed as Ein 1500schräg Structure.
  • This variant of the invention is provided with respect to the drip protection below the air inlet opening of the fan housing with a cover, which has the special recesses or openings already described above.
  • the cover is designed as a disc or plate member and / or that the openings have curved or partially straight polygonal edges.
  • the second housing part at the air inlet opening has a provided with recesses and / or spaced from the air inlet opening axially and / or radially arranged cover that the cover has a particular centrally arranged through hole for the connecting part of the handle part and that the grip part of the peel-off grip can be supported on the cover when attaching its connecting part to the motor shaft, wherein the cover element arranged at a distance from the air inlet opening can be provided with the special recesses and / or openings already described above and thus forms a drip protection.
  • the cover can be designed as a disc or plate element, wherein the openings have curved or partially straight polygonal edges or hexagonal and / or honeycomb-shaped edges.
  • an automatically occlusive closure valve is arranged, which automatically opens during insertion of the connecting part of the handle part and automatically closes when moving out of the connecting part of the handle part.
  • closure valve is a flap valve or that the closure valve has an elastomeric membrane with a cross slot.
  • an insertion aid with Ein Scienceschräg for centering the second housing part relative to the first housing part provided during assembly of the two housing parts.
  • the Einconstructed Vietnamese garneelement has a surrounding the second housing part ring member having formed on the inside Ein thoroughlyschräg Structure.
  • the Ein foundedakielement has a plurality of inwardly projecting webs, the inwardly facing narrow sides form an interrupted insertion inclined surface.
  • FIG. 1 a longitudinal section through an extractor hood 10 with air intake 12 is shown.
  • the air intake device 12 has a housing 14 with an air inlet opening 16 and an air outlet opening 17.
  • the housing 14 is composed of a first upper housing part 18 and a detachable from this lower second housing part 20.
  • the upper housing part 18 is attached to the housing 22 of the hood 10 hanging.
  • the second housing part 20 has an example, the air inlet opening 16 having plate 24, which forms the lower end of the extractor hood 10 and the air intake device 12.
  • a motor 26 is arranged with motor shaft 28, wherein the motor shaft 28 has an outer peripheral surface 29 and is arranged centrally above the air inlet opening 16.
  • a fan 30 Placed on the motor shaft 28 is a fan 30 with fan blades 32, the air sucked axially via the air inlet opening 16 and blows radially.
  • the fan 30 is located within the second housing part 20, wherein the radially exiting air is deflected by 90 ° due to the second housing part 20, wherein particles and fat droplets are deposited on the inner side 34 of the lower housing part 20.
  • a special feature of the air intake device 12 can be seen in the stable coupling of motor shaft 28 and fan 30. It should be noted that the fan 30 is removable from the motor shaft 28.
  • the motor shaft 28 can be connected by means of a latching connection device 36 with the fan 30 latching.
  • the fan wheel 30 has, for example, a plastic peripheral part 38 and a hub part 40, which in this embodiment comprises a circumferential, concentric collar 42 made of plastic, which encloses a metal insert part 44. In this way, a receiving recess 46, in which the motor shaft 28 is inserted, when the motor shaft 28 and fan 30 are rotatably connected.
  • the receiving recess 46 has a bottom surface 48 and an inner circumferential surface 50.
  • a circular driving groove 52 is formed (see also Fig. 4 ), which does not extend completely over 360 ° and has a (barrier) web 54.
  • the driving groove 52 extends concentrically with the motor shaft axis 56.
  • a driving projection 60 which is in the form of a pin.
  • the driving projection 60 dips into the driving groove 52, so that the driving projection 60 can move in the driving groove 52 along a freewheeling path 62, when upon rotation of the motor shaft 28 between this and the fan 30, a slip should arise.
  • the relative rotation of motor shaft 28 and fan 30 is completed at the moment in which the driving projection 60 abuts against the front in the direction of rotation front end of the driving groove 52.
  • This front end forms a movement limiting surface 64 for the driving projection 60, which now entrains the fan wheel 30 upon rotation of the motor shaft 28, without slippage.
  • the driving protrusion 60, the driving groove 52 and the movement limiting surface 64 form a rotary driving device 66 for rotational drive of the fan 30 by the rotating motor shaft 28th
  • the locking connection means 36 which has a plurality of spring-loaded spherical locking projections 68 in this embodiment, the pressure balls 70 form.
  • the locking projections 68 slide along the inner peripheral surface 50 of the receiving recess 46 until they reach a locking groove 72 in the inner peripheral surface 50 of the receiving recess 46.
  • the front edge 74, viewed in the insertion direction, of the circumferential latching groove 72 forms a rear engagement projection 76, behind which (again in the slip-on direction) the latching projections dip into the latching groove 72.
  • the fan wheel 30 can be attached to the motor shaft 28 in almost any relative rotation position. Only when the driving projection 60, viewed in the axial direction of the motor shaft 28, aligned with the web 54 of the driving groove 52, the fan 30 can not be completely plugged onto the motor shaft 28.
  • One possibility that the complete connector is possible in this situation is to store the driving projection 60 so that it can engage when it strikes the web 54.
  • the driving projection 60 then immersed in the driving groove 52 and can then in this, if further slip between the motor shaft 28 and fan 30th is given to move in the driving groove 52 until it is in contact with the movement limiting surface 64 arrived. From there, the fan 30 is then rotated about the driving projection 60 of the motor shaft 28.
  • a balance weight 80 is used in the web 54 diametrically opposite region 81 of the bottom surface 48 of the receiving recess 46, which serves to compensate for imbalance due to the accumulation of material in the web 54 of the driving groove 52.
  • a cover 82 is inserted, which is formed in this embodiment as a perforated disc 84.
  • an annular clearance 86 remains in the air inlet opening 16, through which air can flow into the air inlet opening 16.
  • the openings 88 have a round or polygonal, in particular hexagonal or honeycomb-shaped edge profile 89.
  • the cover member 82 is primarily for receiving grease drops or the like. Drops of liquid that could drip from this when the fan 30 is stationary. The liquid does not continue to flow down through the openings 88 but remains "suspended" at the opening edges. These opening edges could be increased on the inner side 90 of the cover element 82 facing the fan wheel 30.
  • the two housing parts are latching with each other.
  • a seal 98 should be disposed between the two housing parts.
  • a Abziehgriff 100 which has a handle portion 102 and a projecting from this connecting part 104, which is formed in this embodiment as a shaft with threaded end 106.
  • the peel-off handle 100 is inserted through the cover member 82 from below to be bolted or hooked to the fan wheel 30 for the purpose of peeling off the fan wheel 30 and the second housing part 20.
  • This situation of the connection of the pull-off handle 100 with the fan 30 is in Fig. 7 shown.
  • the cover member 82 has, for this purpose, a through-hole 108 which is automatically opened and closed by a shutter valve 110 when the connection part 104 of the peeling-off handle 100 is inserted. This too is in Fig. 7 shown.
  • the second housing part 20 with fan wheel 30 can be removed from the first housing part 18 via the peel-off handle 100 (see FIG Fig. 8 ). Then can be removed from the second housing part 20 by removing the screw between Abziehgriff 100 and fan 30 of this (see Fig. 9 ).
  • the closure valve 110 has a membrane with a cross recess 112, whereby four quarter-circle parts 114, which escape during insertion of the connecting part 104 of the peel-off handle 100 into the passage opening 108 and face up.
  • a ring element 116 surrounding the second housing part 20 is arranged in the housing 22 of the extractor hood 10, the inner side 118 of which faces the second housing part 20 forming a conical oblique surface 120 tapering towards the first housing part 18.
  • This inclined surface 120 serves as in this case exemplified in the form of the ring member 116 Eincommended Anlagenelement 122 when inserting the second housing part 20 from below into the hood 10 until the second housing part 20 is locked to the first housing part 18.
  • the fan 30 see here again the Fig. 8 showing both the state after removal of the second housing part 20 from the first housing part 18, but also the situation before locking of the second housing part 20 on the first housing part 18).
  • the insertion aid element 122 can be considered as a separate element from the first housing part 18 (see FIGS. 1 and 7 to 9 ) or in one piece with the first housing part 18 (see Fig. 10 ).
  • the sloped surface 120 may be configured as a continuous, circumferential surface or in the form of the side surfaces of lands 124 which project inwardly from the insertion aid member 122 (see FIG Fig. 11 ).
  • FIGS. 12 to 15 It is shown how the second housing part 20 and the fan 30 is dismantled or mounted in two steps.
  • the peel-off handle 100 ' is first connected to the housing part 20 ( Fig. 12 ) to remove it from the first housing part 18 ( Fig. 13 ). Thereafter, the peel-off handle 100 'is released from the second housing 20 to be connected to the fan 30 ( Fig. 14 ) so that it can be pulled off the motor shaft 28 ( Fig. 15 ).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Superstructure Of Vehicle (AREA)
  • Ventilation (AREA)
  • Prevention Of Fouling (AREA)

Claims (28)

  1. Dispositif d'aspiration d'air pour une hotte aspirante, avec
    - un boîtier de ventilateur (14) comprenant un orifice d'entrée d'air (16) et un orifice de sortie d'air (17),
    - un moteur (26) disposé dans ledit boîtier de ventilateur (14) avec un arbre moteur (28) entraînable en rotation autour d'un axe central (56), avec une surface frontale axiale (58) et avec une surface périphérique extérieure (29),
    - une roue de ventilateur (30) disposée dans ledit boîtier de ventilateur (14), ladite roue de ventilateur (30) comprenant un évidement de réception (46) avec une surface inférieure (48) et une surface périphérique intérieure (50) pour monter ladite roue de ventilateur (30) sur ledit arbre moteur (28) et enlever ladite roue de ventilateur (30) dudit arbre moteur (28),
    - un moyen de connexion de verrouillage (36) pour relier de manière amovible ladite roue de ventilateur (30) et ledit arbre moteur (28), et
    - un moyen d'entraînement en rotation (66) pour l'entraînement en rotation de ladite roue de ventilateur (30) par ledit arbre moteur rotatif (28), caractérisé en ce que
    - ledit moyen de connexion de verrouillage (36) comprend au moins une saillie de verrouillage à ressort (68) sur ladite surface périphérique extérieure (29) dudit arbre moteur (28) ou sur ladite surface périphérique intérieure (50) dudit évidement de réception (46) de ladite roue de ventilateur (30) et une saillie de préhension arrière périphérique (76), prévue pour la préhension arrière par ladite au moins une saillie de verrouillage (68), soit sur ladite surface périphérique intérieure (50) dudit évidement de réception (46) de ladite roue de ventilateur (30) ou sur ladite surface périphérique extérieure (29) dudit arbre moteur (28), et
    - ledit moyen d'entraînement en rotation (66) comprend une saillie d'entraînement (60) disposée soit sur ledit arbre moteur (28), soit dans ledit évidement de réception (46) de ladite roue de ventilateur (30), et un chemin de roue libre (62) qui longe une ligne de pas pour ladite saillie d'entraînement (60), formée soit dans ledit évidement de réception (46) de ladite roue de ventilateur (30), soit sur ledit arbre du moteur (28) et le long duquel ladite saillie d'entraînement (60) est mobile lorsque ladite roue de ventilateur (30) est montée sur ledit arbre moteur (28) et lorsque ledit arbre moteur (28) et ladite roue du ventilateur (30) tournent l'un par rapport à l'autre,
    - ledit chemin de roue libre (62) comprend une surface de limitation de mouvement (64) pour l'engagement par ladite saillie d'entraînement (60) et donc pour entraîner ladite roue de ventilateur (30) par ledit arbre moteur rotatif (28).
  2. Dispositif d'aspiration d'air selon la revendication 1, caractérisé en ce que ladite saillie d'entraînement (60) est alignée parallèlement et excentriquement audit axe central (56) dudit arbre moteur (28) et en ce que ledit chemin roue libre (62) est formé comme une rainure d'entraînement circulaire (52) concentrique audit axe central (56) dudit arbre moteur (28) s'étendant sur moins de 360° pour recevoir ladite saillie d'entraînement (60), qui est formée soit dans ladite surface inférieure (48) soit dans une surface de l'évidement de réception (46) de ladite roue de ventilateur (30) sensiblement parallèle à celle-ci, soit dans ladite surface frontale (58) dudit arbre moteur (28), ladite rainure d'entraînement (52) ayant à au moins une de ses extrémités ladite surface limite de mouvement (64).
  3. Dispositif d'aspiration d'air selon la revendication 2, caractérisé en ce qu'une bande (54) formant ladite surface de limitation de mouvement (64) est agencée dans ladite rainure d'entraînement (52) entre ses deux extrémités.
  4. Dispositif d'aspiration d'air selon la revendication 2 ou 3, caractérisé en ce que ladite saillie d'entraînement (60) est précontrainte élastiquement et peut donc être engagée contre la force du ressort et se désengager automatiquement du fait de la force du ressort.
  5. Dispositif d'aspiration d'air selon la revendication 1, caractérisé en ce que, en ce que ladite saillie d'entraînement (60) est disposée sur ladite surface périphérique extérieure (29) dudit arbre moteur (28) ou sur ladite surface périphérique intérieure (50) dudit évidement de réception (46) de ladite roue de ventilateur (30) et, est en outre, pour accrocher une saillie de préhension arrière d'un moyen d'entraînement en rotation (66) disposée précontrainte élastiquement soit à ladite surface périphérique intérieure (50) dudit évidement de réception (46) de ladite roue de ventilateur (30), soit à ladite surface périphérique extérieure (29) dudit arbre moteur (28) formé et que ledit chemin en roue libre (62) dudit moyen d'entraînement en rotation (66) est le long de la saillie de préhension arrière dudit moyen d'entraînement en rotation (66).
  6. Dispositif d'aspiration d'air selon la revendication 5, caractérisé en ce que la saillie arrière dudit dispositif d'entraînement en rotation (66) s'étend sensiblement parallèlement à ladite saillie de préhension arrière (76) dudit moyen de connexion de verrouillage (36).
  7. Dispositif d'aspiration d'air selon la revendication 5, caractérisé en ce que ladite saillie d'entraînement (60) dudit dispositif d'entraînement en rotation (66) est l'une desdites saillies de verrouillage (68) dudit moyen de connexion de verrouillage (36) et en ce que ladite saillie de préhension arrière du dispositif d'entraînement en rotation (66) est ladite saillie de préhension arrière (76) dudit dispositif de connexion de verrouillage (36).
  8. Dispositif d'admission d'air selon l'une des revendications 1 à 7, caractérisé en ce que ladite roue de ventilateur (30) comporte une partie périphérique externe (38) qui comporte, entre autres, des aubes de ventilateur (32) et une partie moyeu (40) entourée par ladite partie périphérique (38), et en ce que ledit évidement récepteur (46) de ladite roue de ventilateur (30) est formé dans la partie moyeu (40).
  9. Dispositif d'aspiration d'air selon la revendication 8, caractérisé en ce que ladite partie moyeu (40) et ledit arbre moteur (28) sont équilibrés et/ou en ce que ladite roue de ventilateur (30) est équilibrée avec ledit arbre moteur (28) dans son état monté sur ledit arbre moteur (28) tandis que ladite saillie d'entraînement (60) est en appui contre ladite surface de limitation de mouvement (64).
  10. Dispositif d'admission d'air selon l'une quelconque des revendications 1 à 9, caractérisé, en ce que ledit dispositif de connexion de verrouillage (36) comporte au moins trois ou au moins cinq saillies de verrouillage (68) qui sont disposées à des égales distances les unes des autres, et en ce que lesdites saillies de verrouillage (68), lorsque ladite roue de ventilateur (30) est montée sur ledit arbre moteur (28), pour centrer ladite roue de ventilateur (30) par rapport audit arbre moteur (28) sous une tension de ressort par rapport audit arbre moteur (28) contre ladite saillie arrière (76) de ladite unité de liaison de verrouillage (36) et/ou contre ladite surface périphérique intérieure (50) dudit évidement de réception (46) de ladite roue de ventilateur (30) ou contre ladite surface périphérique extérieure (29) dudit arbre moteur (28).
  11. Dispositif d'aspiration d'air selon la revendication 10, caractérisé en ce que lesdites saillies de verrouillage (68), à l'état de ladite roue de ventilateur (30) enfichée sur ledit arbre moteur (28), pour exercer une force axiale (78) sur ladite roue de ventilateur (30) prévue pour appuyer axialement ladite roue de ventilateur (30) sur ledit arbre moteur (28), reposent sur ladite saillie de préhension arrière (76) dudit dispositif de connexion de verrouillage (36) en exerçant une tension à ressort.
  12. Dispositif d'aspiration d'air selon l'une quelconque des revendications 1 à 11, caractérisé en ce que ladite roue de ventilateur (30) est une roue de ventilateur radiale ou axiale.
  13. Dispositif d'aspiration d'air selon l'une des revendications 1 à 12, caractérisé en ce que ledit boîtier comporte, au niveau de l'orifice d'entrée d'air (16), un élément couvercle (82) muni d'évidements et/ou d'orifices (88) et/ou agencé à une distance axiale et/ou radiale dudit orifice d'entrée d'air (16).
  14. Dispositif d'aspiration d'air selon la revendication 13, caractérisé en ce que ledit élément couvercle (82) est réalisé sous la forme d'un élément de disque ou de plaque (84).
  15. Dispositif d'aspiration d'air selon la revendication 14, caractérisé en ce que lesdits orifices (88) présentent des bords polygonaux (89) courbes ou droits par sections.
  16. Dispositif d'aspiration d'air selon la revendication 15, caractérisé en ce que lesdits bords d'orifice (89) s'étendent de manière hexagonale ou en nid d'abeilles.
  17. Dispositif d'aspiration d'air selon l'une des revendications 1 à 16, caractérisé en ce que ledit boîtier (14) comporte une première partie de boîtier (18) et une deuxième partie de boîtier (20), où les deux dites parties de boîtier (18, 20) sont reliables l'une à l'autre de manière amovible et en ce qu'une poignée détachable (100, 100') peut être fixée sur ladite roue de ventilateur (30) et/ou ladite deuxième partie de boîtier (20), notamment pour extraire ladite roue de ventilateur (30) dudit arbre moteur (28) et/ou pour enlever ladite deuxième partie de boîtier (20) de ladite première partie de boîtier (18).
  18. Dispositif d'aspiration d'air selon la revendication 17, caractérisé en ce que ladite poignée d'extraction (100, 100') comporte une partie poignée (102) et une partie de connexion (104) saillante pour la fixation sur ladite roue de ventilateur (30) et/ou ladite deuxième partie de boîtier (20).
  19. Dispositif d'aspiration d'air selon la revendication 17 ou 18, caractérisé en ce que ladite poignée détachable (100, 100') ou sa partie de connexion (104) peut être fixée à ladite roue de ventilateur (30) et/ou à ladite deuxième partie de boîtier (20) au moyen d'un moyen de connexion par vis ou baïonnette.
  20. Dispositif d'aspiration d'air selon l'une quelconque des revendications 17 à 19, caractérisé en ce que ledit orifice d'entrée d'air (16) est formé sur ladite deuxième partie de boîtier (20) en prolongement dudit arbre moteur (28) et en ce que ladite partie de connexion (104) de ladite poignée (100,100') peut être fixée à ladite roue de ventilateur (30), où ladite partie de liaison (104) de ladite poignée détachable (100, 100') s'étend à travers ledit orifice d'entrée d'air (16) vers ledit arbre moteur (28) et ladite partie de poignée (102) de ladite poignée d'extraction (100, 100') est soutenue sur ladite seconde partie du boîtier (20).
  21. Dispositif d'aspiration d'air selon l'une des revendications 17 à 20, caractérisé en ce que ladite deuxième partie de boîtier (20) comporte, au niveau dudit orifice d'entrée d'air (16), un élément couvercle (82) muni d'évidements et/ou disposé axialement et/ou radialement à une distance dudit orifice d'entrée d'air (16), en ce que ledit élément couvercle (82) comporte un orifice de passage (108), en particulier central, pour ladite partie de connexion (104) de ladite partie poignée (102), et en ce que ladite partie poignée (102) de ladite poignée détachable (100, 100') peut être supportée sur ledit élément couvercle (82) lorsque sa partie de connexion (104) est fixée sur ledit arbre moteur (28).
  22. Dispositif d'aspiration d'air selon la revendication 21, caractérisé en ce qu'une soupape de fermeture à fermeture automatique (110) est disposée dans ledit orifice traversant (108), laquelle soupape s'ouvre automatiquement lorsque ladite partie de connexion (104) de ladite partie poignée (102) est insérée et se ferme automatiquement lorsque ladite partie de connexion (104) de ladite partie poignée (102) est sortie.
  23. Dispositif d'aspiration d'air selon la revendication 22, caractérisé en ce que ladite soupape de fermeture (110) est une soupape à clapet ou en ce que ladite soupape de fermeture (110) comprend une membrane élastomère à fente croisée (112).
  24. Dispositif d'aspiration d'air selon l'une des revendications 1 à 23, caractérisé en ce que ledit boîtier (14) comporte une première partie de boîtier (18) sur laquelle est formé ledit orifice de sortie d'air (17) et dans laquelle est disposé ledit moteur (26), et une seconde partie de boîtier (20) sur laquelle est formée ledit orifice d'entrée d'air (16) et qui entoure ladite roue du ventilateur (30) et en ce que lesdites deux parties du boîtier (18, 20) sont reliables de manière amovible l'une par rapport à l'autre.
  25. Dispositif d'admission d'air selon la revendication 24, caractérisé par un élément d'aide à l'insertion (122) avec une surface oblique d'insertion pour aligner centralement ladite deuxième partie de boîtier (20) par rapport à ladite première partie de boîtier (18) lors de l'*assemblages des deux dites parties de boîtier (18, 20).
  26. Dispositif d'aspiration d'air selon la revendication 25, caractérisé en ce que ledit élément d'aide à l'insertion (122) comprend un élément annulaire (116) entourant ladite deuxième partie de boîtier (20) avec une surface oblique d'insertion (120) formé sur ledit côté intérieur (118) de celle-ci.
  27. Dispositif d'aspiration d'air selon la revendication 25 ou 26, caractérisé en ce que ledit élément d'aide à l'insertion (122) est formé d'un seul tenant avec ladite première partie de boîtier (18).
  28. Dispositif d'aspiration d'air selon l'une des revendications 25 à 27, caractérisé en ce que ledit élément d'aide à l'insertion (122) comporte plusieurs bandes (124) saillantes vers l'intérieur, dont les côtés étroits pointant vers l'intérieur forment une surface oblique d'insertion (120) oblique interrompue.
EP16775148.6A 2015-09-28 2016-09-26 Dispositif d'aspiration d'air pour une hotte aspirante Active EP3368773B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16775148T PL3368773T3 (pl) 2015-09-28 2016-09-26 Urządzenie do zasysania powietrza dla okapu wyciągowego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015218612.1A DE102015218612B3 (de) 2015-09-28 2015-09-28 Luftansaugvorrichtung für eine Dunstabzugshaube
PCT/EP2016/072802 WO2017055199A1 (fr) 2015-09-28 2016-09-26 Dispositif d'aspiration d'air pour une hotte aspirante

Publications (2)

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EP3368773A1 EP3368773A1 (fr) 2018-09-05
EP3368773B1 true EP3368773B1 (fr) 2019-05-01

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EP (1) EP3368773B1 (fr)
CN (1) CN108138790B (fr)
DE (1) DE102015218612B3 (fr)
ES (1) ES2736400T3 (fr)
PL (1) PL3368773T3 (fr)
TR (1) TR201908847T4 (fr)
WO (1) WO2017055199A1 (fr)

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DE202016107354U1 (de) 2016-12-23 2017-03-27 Berling Aero IP UG (haftungsbeschränkt) Dunstabzugshaube mit rundem Einströmungsbereich in schräger Führungsfläche
CN108361816B (zh) * 2017-01-25 2019-08-13 珠海格力电器股份有限公司 一种空调器
DE102017217853B4 (de) 2017-10-06 2022-07-07 Wilhelm Bruckbauer Kochfeldsystem mit Dunstabzugsvorrichtung
CN107503975B (zh) * 2017-10-18 2018-06-22 江门市裕浩家用电器有限公司 一种电风扇防护装置
IT201800004522A1 (it) * 2018-04-16 2019-10-16 "cappa perfezionata del tipo a saliscendi o up and down"
ES2910130T3 (es) 2018-05-04 2022-05-11 CASO Holding GmbH Dispositivo de purificación de aire, en particular para vapores de cocción, y uso del mismo
CN108592127A (zh) * 2018-07-20 2018-09-28 广东美的厨房电器制造有限公司 内循环式吸油烟机
CN108592126B (zh) * 2018-07-20 2024-07-19 广东美的厨房电器制造有限公司 内循环式吸油烟机
CN109611351A (zh) * 2018-12-26 2019-04-12 南京航空航天大学 一种离心/轴流混合式风机及其组成的抽油烟机
CN110159557A (zh) * 2019-06-27 2019-08-23 杭州老板电器股份有限公司 风机及油烟机
DE102019132607A1 (de) * 2019-12-02 2021-06-02 Inovvida Aero Ip Ug (Haftungsbeschränkt) Laufradaufnahme
CN112032094B (zh) * 2020-08-21 2022-04-22 瑞卡斯(南京)精密机械有限公司 一种叶轮传动轴及冷却水泵
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Publication number Publication date
DE102015218612B3 (de) 2016-12-01
WO2017055199A1 (fr) 2017-04-06
ES2736400T3 (es) 2019-12-30
CN108138790B (zh) 2020-03-10
CN108138790A (zh) 2018-06-08
EP3368773A1 (fr) 2018-09-05
PL3368773T3 (pl) 2019-10-31
TR201908847T4 (tr) 2019-07-22

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