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EP2971792B1 - Boîtier pour soufflante radiale de hotte aspirante - Google Patents

Boîtier pour soufflante radiale de hotte aspirante Download PDF

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Publication number
EP2971792B1
EP2971792B1 EP14705783.0A EP14705783A EP2971792B1 EP 2971792 B1 EP2971792 B1 EP 2971792B1 EP 14705783 A EP14705783 A EP 14705783A EP 2971792 B1 EP2971792 B1 EP 2971792B1
Authority
EP
European Patent Office
Prior art keywords
housing
reinforcing rib
spiral
air inlet
edge
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
EP14705783.0A
Other languages
German (de)
English (en)
Other versions
EP2971792A1 (fr
Inventor
Christoph Häusig
Dietmar Jordan
Eugen Maurer
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 EP2971792A1 publication Critical patent/EP2971792A1/fr
Application granted granted Critical
Publication of EP2971792B1 publication Critical patent/EP2971792B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • 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 present invention relates to a housing for a radial fan of an extractor hood.
  • the radial fan comprises a housing and a blower motor.
  • the blower motor is held on the housing by means of a motor suspension.
  • the engine mounting comprises three arms, which are each flanged to the housing. The arms extend from their respective attachment portion on the housing into a fan wheel which surrounds the fan motor.
  • the housing is designed as a double-flow spiral housing. Sucked air flows substantially axially through air inlets on both sides of the fan wheel into it and is discharged radially through an air outlet at a higher pressure.
  • the EP 1 484 509 A1 describes a housing for a radial fan with a stiffening rib which annularly circulates an air inlet of the housing.
  • the WO 2011/113297 A1 describes a housing for a radial fan with a stiffening rib which partially revolves around an air inlet of the housing.
  • the JP 2006 307651 A describes a housing for a radial fan.
  • the JP 2002 371996 A describes a housing for a radial fan with at least one rib, which extends in opposite directions with a spiral base body of the housing.
  • a housing for a radial fan of an extractor hood is provided with an air inlet.
  • the air inlet is bounded by an edge having at least one stiffening rib, the housing comprising a spiral base body having the air inlet and the rim, wherein the at least one stiffening rib extends in the same spiral with the spiral base body and wherein the at least one stiffening rib directly adjacent to the air intake.
  • the at least one stiffening rib reduces vibration of the housing, so that less disturbing noises are generated. Furthermore, such a stiffening rib can be arranged such that it disturbs the air flow when flowing into the air inlet little or not at all.
  • the stiffening rib is placed on the edge, so over the edge over.
  • edge is meant that surface which is directly adjacent to the air inlet, that is to a corresponding opening in the housing in which the fan wheel is arranged.
  • the stiffening ribs cover less than 50%, preferably less than 80%, and more preferably less than 90% of the rim.
  • the radial fan may be formed as a double-flow radial fan.
  • the housing has two opposing air inlets.
  • Each of the air inlets may be bounded by an edge having at least one stiffening rib.
  • the hood is designed as a household appliance.
  • the housing comprises a spiral-shaped base body, which has the air inlet and the edge.
  • a spiral, expanding annular space is formed, which surrounds the fan and extends to the air outlet.
  • the spiral-shaped basic body is designed in the form of a spiral-shaped cylinder which forms the edge on one of its end faces.
  • the end faces preferably extend radially to a rotational axis of the fan wheel.
  • the lateral surface formed between the end faces is broken, for example, by the air outlet.
  • the lateral surface may have a parting plane between two housing halves forming the housing.
  • the air inlet is circular.
  • At least one further stiffening rib extends radially relative to a central axis of the air inlet or parallel to a radial with respect to the central axis.
  • Such a stiffening rib is suitable for directing the air flow towards the air inlet and in particular not obstructing it.
  • such a stiffening rib ensures stiffening of the housing, in particular the edge.
  • the at least one stiffening rib extends in the same direction spirally with the spiral base body.
  • the at least one stiffening rib defines a portion of a spiral, which has a spiral course in the same direction of rotation as the spiral-shaped base body.
  • the at least one stiffening rib is directly adjacent to the air intake. As a result, the air flow can be guided into the air inlet without turbulence.
  • the at least one stiffening rib extends towards an air outlet of the housing.
  • the stiffening rib may extend along a collar, which connects a tube defining the air outlet with the spiral-shaped base body.
  • the at least one stiffening rib extends over a lateral surface of the spiral cylinder.
  • the lateral surface can be stiffened.
  • At least one further stiffening rib in the form of a ring section extends on the edge.
  • the at least one stiffening rib thickens along its length. As a result, different areas of the edge can be easily reinforced as needed.
  • the edge has at least one attachment point for fastening an engine mount, which is surrounded by at least one further stiffening rib.
  • the stiffening rib can also serve as a positioning aid.
  • the engine mount can be flanged to the attachment point in particular by means of a screw.
  • this extends at least one further stiffening rib in the form of a semicircular arc around the attachment point.
  • a good shielding of the attachment point is achieved, so that form little air turbulence here.
  • the corresponding semicircle may be open to the air inlet.
  • the housing is composed of two housing halves, which are axially connected to each other. Along a parting plane, a further stiffening rib is formed. The stiffening rib can receive a seal, which seals the two housing halves against each other.
  • an extractor hood is provided with a radial fan.
  • the extractor hood has a housing described above.
  • a fan wheel and a blower motor driving the fan wheel are arranged in the housing.
  • the at least one stiffening rib curves in the direction of rotation of the fan during operation of the Radialgeblässes.
  • the curvature is to be understood here as meaning that the at least one stiffening rib curves away from a radial (in relation to an axis of rotation of the fan wheel) in the direction of rotation.
  • Fig. 1 shows in a perspective view a housing 1 for a in Fig. 2 shown radial fan 2 a schematically shown extractor hood 3rd
  • the housing 1 comprises a spiral-shaped basic body 4 in the form of a spiral-shaped cylinder with end faces 5 (in FIG. 1 is due to the representation, only the front end face 5 to see). Between the end faces 5 of the base body 4 forms a lateral surface 6. The end faces 5 each form an edge which delimits an air inlet 7, 8.
  • the air inlets 7, 8 are opposite.
  • the air inlets 7, 8 can each be designed as circular openings with a central axis 11.
  • a spirally expanding annular space 12 is formed, which widens toward a radial air outlet 13.
  • the air outlet 13 may be bounded by a tube 14, which connects via a collar 15 to the lateral surface 6 of the spiral-shaped main body 4.
  • the housing 1 may be composed of two housing halves 16, 17, which are connected together axially along a parting plane 18.
  • "Axial” refers in this case to the central axis 11, which is identical to a rotational axis of a in FIG. 2 shown blower motor 21 is.
  • the parting plane 18 extends radially to the central axis 11.
  • the edge 5 can also, for example, three attachment points 22 for flanging a in FIG. 2 have shown engine mount 23.
  • the engine mount 23 may, for example, three support arms 24 which, for example, in one piece to a Connect mount 25 for blower motor 21.
  • the receptacle 25 holds the rotor (not shown) of the fan motor 21 rotatable relative to a stator 26 of the fan motor 21.
  • the motor suspension 23 can thus simultaneously form a bearing plate of the fan motor 21.
  • the support arms 24 are designed such that they hold the fan motor 21 (here in particular the rotor and the stator 26) concentric with the central axis 11.
  • the central axis 11 is at the same time the axis of rotation of a fan 1 arranged in the housing 27, which drives the fan motor 21. Furthermore, the support arms 24 also position the blower motor 21 axially (with respect to the central axis 11) within the fan 27 and thus also within the housing 1.
  • the edge 5 may have several, for example, more than ten stiffening ribs.
  • the stiffening ribs are in the form of webs and, for example, take up less than 95% of the surface of the edge 5.
  • some of the stiffening ribs are described in more detail below and are denoted by 30, 31, 32, 33, 36, 41 and 42.
  • the stiffening rib 30 may extend radially (with respect to the central axis 11).
  • stiffening rib 31 extends parallel to a radial 34 (with respect to the central axis or axis of rotation 11).
  • the stiffening rib 32 curves spirally about an axis of rotation designated 35, in the same direction as the spiral-shaped base body 4. It can also be seen that the stiffening rib 32 extends both over the edge 5 and over the lateral surface 6.
  • the stiffening rib 33 extends from the edge 5 via the collar 15.
  • FIG. 1 further shows a stiffening rib 36, which is formed along the parting plane 18 between the two housing halves 16, 17.
  • the stiffening rib 36 may have a groove for a seal for sealing the two housing halves 16, 17 against each other.
  • the stiffening rib 36 thus also extends along the lateral surface 6 of the main body 4.
  • the direction of rotation of the fan 27 is denoted by 37.
  • FIG. 1 semicircular stiffening ribs 41 which each surround an attachment point 22. The semicircles formed thereby are open towards the air inlet 7.
  • stiffening ribs 30, 31, 32, 33 and 41 have in common that they are directly adjacent to the air inlet 7.
  • stiffening rib 42 which extends in sections annularly around the central axis 11. Furthermore, the stiffening rib 42 may be thickened lengthwise, as well as for the stiffening rib 42 in FIG FIG. 2 shown. The stiffening rib 42 also extends on the edge 5 of the housing first

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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)

Claims (12)

  1. Carter (1) pour une soufflante radiale (2) d'une hotte aspirante (3), avec une entrée d'air (7, 8) limitée par un bord (5), qui présente au moins une nervure de rigidification (32, 33), dans lequel le carter (1) comprend un corps de base spiralé (4), qui présente l'entrée d'air (7, 8) et le bord (5), caractérisé en ce que l'au moins une nervure de rigidification (32, 33) s'étend dans le même sens spiralé que le corps de base spiralé (4), et en ce que l'au moins une nervure de rigidification (32, 33) est directement contiguë à l'entrée d'air (7, 8).
  2. Carter selon la revendication 1, caractérisé en ce que le corps de base spiralé (4) est exécuté sous la forme d'un cylindre spiralé, lequel constitue le bord sur l'une de ses faces frontales (5).
  3. Carter selon la revendication 1 ou 2, caractérisé en ce que l'entrée d'air (7, 8) est exécutée sous forme circulaire en ce qu'au moins une nervure de rigidification supplémentaire (30, 31) s'étend radialement à un axe central (11) de l'entrée d'air (7, 8) ou parallèlement à une radiale (34) à l'axe central (11).
  4. Carter selon l'une des revendications 1 à 3, caractérisé en ce que l'au moins une nervure de rigidification (33) s'étend vers une sortie d'air (13) du carter (1).
  5. Carter selon l'une des revendications 2 à 4, caractérisé en ce que l'au moins une nervure de rigidification (30, 31, 32, 33) s'étend sur une surface d'enveloppe (6) du cylindre spiralé (4).
  6. Carter selon l'une des revendications 1 à 4, caractérisé en ce que l'au moins une nervure de rigidification supplémentaire (42) s'étend sous la forme d'un segment annulaire sur le bord (5).
  7. Carter selon l'une des revendications 1 à 5, caractérisé en ce que l'au moins une nervure de rigidification s'épaissit sur sa longueur.
  8. Carter selon l'une des revendications 1 à 7, caractérisé en ce que le bord (5) présente au moins un endroit de fixation (22) pour une fixation d'une suspension de moteur (23) de la soufflante radiale (2), lequel est entouré par au moins une nervure de rigidification supplémentaire (41).
  9. Carter selon la revendication 8, caractérisé en ce que l'au moins une nervure de rigidification supplémentaire (41) s'étend sous la forme d'un arc semi-circulaire autour de l'endroit de fixation (22).
  10. Carter selon l'une des revendications 1 à 9, caractérisé en ce que le carter (1) se compose de deux moitiés de carter (16, 17), reliées axialement l'une à l'autre, et en ce qu'une nervure de rigidification supplémentaire (36) est exécutée le long d'un plan de séparation (18).
  11. Hotte aspirante (3) avec une soufflante radiale (2) présentant un carter (1) selon l'une des revendications 1 à 10.
  12. Hotte aspirante selon la revendication 11, caractérisée en ce qu'une roue de ventilateur (27) ainsi qu'un moteur de soufflante (21) entraînant la roue de ventilateur sont disposés dans le carter (1) et en ce que l'au moins une nervure de rigidification (32, 36) se courbe dans le sens de rotation (37) de la roue de ventilateur (27) en fonctionnement de la soufflante radiale (2).
EP14705783.0A 2013-03-11 2014-02-21 Boîtier pour soufflante radiale de hotte aspirante Active EP2971792B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013204144.6A DE102013204144A1 (de) 2013-03-11 2013-03-11 Gehäuse für ein Radialgebläse einer Dunstabzugshaube
PCT/EP2014/053466 WO2014139780A1 (fr) 2013-03-11 2014-02-21 Boîtier pour soufflante radiale de hotte aspirante

Publications (2)

Publication Number Publication Date
EP2971792A1 EP2971792A1 (fr) 2016-01-20
EP2971792B1 true EP2971792B1 (fr) 2019-08-21

Family

ID=50151291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14705783.0A Active EP2971792B1 (fr) 2013-03-11 2014-02-21 Boîtier pour soufflante radiale de hotte aspirante

Country Status (4)

Country Link
EP (1) EP2971792B1 (fr)
CN (1) CN105408637B (fr)
DE (1) DE102013204144A1 (fr)
WO (1) WO2014139780A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106968984B (zh) 2015-12-11 2020-10-23 松下知识产权经营株式会社 涡轮机
ITUA20162311A1 (it) 2016-04-05 2017-10-05 Elica Spa Piano cottura con cappa integrata.
CN107701512A (zh) * 2017-10-18 2018-02-16 珠海格力电器股份有限公司 蜗壳、压缩机及空调器
DE102019115741A1 (de) * 2019-06-11 2020-12-17 Ebm-Papst Landshut Gmbh Versteiftes Gebläsegehäuseteil zur Anordnung an einem Gasgebläse

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009011350A1 (fr) * 2007-07-19 2009-01-22 Daikin Industries, Ltd. Ventilateur centrifuge et climatiseur l'utilisant

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9016767U1 (de) 1990-12-12 1991-02-28 Ebm Elektrobau Mulfingen Gmbh & Co, 7119 Mulfingen Dunstabzugshaube
JP2002371996A (ja) * 2001-06-13 2002-12-26 Sanyo Electric Co Ltd 送風機及び送風機を有する換気扇
DE20308886U1 (de) * 2003-06-05 2004-10-14 Ebm-Papst Mulfingen Gmbh & Co. Kg Doppel-Gebläseanordnung
JP2006307651A (ja) * 2005-04-26 2006-11-09 Kunihiro Miyake 多翼ファン
CN201043533Y (zh) * 2007-05-11 2008-04-02 姜小明 消防喷灌泵
WO2011113297A1 (fr) * 2010-03-17 2011-09-22 广东松下环境系统有限公司 Ventilateur
CN102192168B (zh) * 2010-03-17 2013-09-25 广东松下环境系统有限公司 换气扇
US20130094953A1 (en) * 2011-10-12 2013-04-18 Honeywell International Inc. Variable thickness and variable radius structural rib support for scrolls and torus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009011350A1 (fr) * 2007-07-19 2009-01-22 Daikin Industries, Ltd. Ventilateur centrifuge et climatiseur l'utilisant

Also Published As

Publication number Publication date
EP2971792A1 (fr) 2016-01-20
WO2014139780A1 (fr) 2014-09-18
CN105408637B (zh) 2020-01-17
CN105408637A (zh) 2016-03-16
DE102013204144A1 (de) 2014-09-11

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