EP2530388B1 - Abzugshaube - Google Patents

Abzugshaube Download PDF

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Publication number
EP2530388B1
EP2530388B1 EP12004126.4A EP12004126A EP2530388B1 EP 2530388 B1 EP2530388 B1 EP 2530388B1 EP 12004126 A EP12004126 A EP 12004126A EP 2530388 B1 EP2530388 B1 EP 2530388B1
Authority
EP
European Patent Office
Prior art keywords
enclosure
volute
wall
inlet opening
hood according
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
EP12004126.4A
Other languages
English (en)
French (fr)
Other versions
EP2530388A1 (de
Inventor
Mario Biancospino
Sandro Cacioppo
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.)
Whirlpool EMEA SpA
Original Assignee
Indesit Co SpA
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 Indesit Co SpA filed Critical Indesit Co SpA
Priority to PL12004126T priority Critical patent/PL2530388T3/pl
Publication of EP2530388A1 publication Critical patent/EP2530388A1/de
Application granted granted Critical
Publication of EP2530388B1 publication Critical patent/EP2530388B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • This invention relates to a hood for a domestic kitchen.
  • the enclosure comprises a lower air inlet opening.
  • the enclosure On an upper surface (in a position substantially opposite the lower opening) the enclosure comprises an opening through which the air coming from the volute passes.
  • the hoods comprise a lower structure for collecting air having a substantially horizontal main direction of extension and an upper flue having a mainly vertical direction.
  • the enclosure is housed in the flue. More specifically, the flue comprises a front decorative cover which extends vertically and is parallel to and against a first face of the parallelepiped-shaped housing.
  • the inlet opening of the centrifugal fan is substantially parallel to a second face of the parallelepiped-shaped enclosure, the second face being at right angles to the first face.
  • the air enters inside the enclosure from the bottom, then flows into the volute and lastly is expelled from the enclosure through an upper surface of the enclosure.
  • the inlet opening of the volute is positioned against the face of the enclosure and this generates noise and major head losses; in effect, immediately upstream of the inlet opening there is a reduced passage cross-section at which there is also a sudden change of direction of the air flow.
  • the technical purpose which forms the basis of this invention is to provide a hood that overcomes the above mentioned drawbacks of the prior art.
  • an important aim of this invention is to provide a hood which is capable of minimising the head losses and the noise.
  • the hood 1 comprises a fan 2, typically of a centrifugal type, comprising a volute 21 and a wheel 22 positioned inside the volute 21, the wheel 22 having an axis 220 of rotation.
  • a fan 2 typically of a centrifugal type, comprising a volute 21 and a wheel 22 positioned inside the volute 21, the wheel 22 having an axis 220 of rotation.
  • the volute 21 comprises a first inlet opening 210 allowing entry of the air inside the volute 21.
  • the volute 21 comprises a first side 211 extending transversally to a direction identified by the axis 220 of rotation.
  • the first side 211 circumscribes the first inlet opening 210. More specifically, the first side 211 delimits the first inlet opening 210.
  • the hood 1 also comprises an enclosure 3 housing at least a part of the volute 21 and the wheel 22. As shown by way of an example in the accompanying drawings, the volute 21 and the wheel 22 are completely contained in the enclosure 3 (in this regard, the enclosure 3, as illustrated in the accompanying drawings, is hollow).
  • the enclosure 3 comprises a first and a second wall 51, 52 which converge on each other.
  • the first and the second wall 51, 52 connect together in a first zone 30 of reciprocal connection. As shown by way of example in the accompanying drawings, the first and the second wall 51, 52 are not coplanar. In a preferred embodiment of this invention, the first and the second wall 51, 52 are at right angles to each other.
  • At least a part of the first side 211 of the volute 21 faces the first connection zone 30.
  • the first inlet opening 210 is inside the enclosure 3 and faces the first connection zone 30.
  • the distance, measured on the axis 220 of rotation, between the enclosure 3 and the first inlet opening 210 is greater than 1/4 of the external diameter of the wheel 22, preferably it is greater than 1/3 of the external diameter of the wheel 22, even more preferably it is greater than half of the external diameter of the wheel 22.
  • the distance, measured on the axis 220 of rotation, between the enclosure 3 and the first inlet opening 210 is conveniently greater than 1/4 of an internal reference diameter, preferably it is greater than 1/3 of the internal reference, even more preferably it is greater than half of the internal reference diameter (the internal reference diameter being the distance between the inlet edges of any pair of opposite blades relative to the axis 220 of rotation of the wheel 22).
  • the distance is equal to approximately 110-130 millimetres (with a different inclination the maximum distance tends to reduce to approximately 70-80 millimetres).
  • the first and the second wall 51, 52 of the enclosure 3 are substantially vertical.
  • the axis 220 of rotation of the wheel 22 is horizontal.
  • a straight line at right angles to an outlet cross-section of the volute 21 is vertical and a straight line at right angles to the first inlet opening 210 of the volute 21 is horizontal.
  • the ideal direction of the air leaving the volute 21 is vertical, whilst the ideal direction of the air entering the volute 21 is horizontal.
  • the enclosure 3 forms a space shaped substantially as a parallelepiped (which could have a square or rectangular base) or as a cube (or more generally as a right prism).
  • the first and the second wall 51, 52 lie on planes which are transversal to the axis 220 of rotation 22 of the wheel.
  • the enclosure 3 comprises a lower base 61, an upper base 62 and a side surface 63 connecting the lower base 61 and the upper base 62.
  • the first and the second wall 51, 52 preferably form part of the side surface 63.
  • the enclosure 3 comprises a lower opening 35 through which air enters the enclosure 3.
  • the lower opening 35 faces downwards.
  • the lower opening 35 is formed in the lower base 61 (in some cases the lower opening 35 occupies entirely the lower base 61).
  • the delivery side 214 of the volute 21 is preferably formed on the upper base 62. Conveniently, the upper base 62 and/or the lower base 61 are/is horizontal.
  • the hood 1 also comprises a decorative cover 4 having a front portion substantially parallel to a reference plane 40; the front portion of the decorative cover 4 conceals at least a part of the enclosure 3 to an outside observer; the second wall 52 of the enclosure 3 is substantially parallel to the reference plane 40; a vertical plane containing the axis 220 of rotation forms with the reference plane 40 an acute angle of between 15° and 75°, advantageously it is between 25° and 65°, preferably it is between 40° and 50°.
  • the reference plane 40 is substantially vertical.
  • the enclosure 3 preferably comprises a third and a fourth wall 33, 34 converging in a second zone 301 of reciprocal connection.
  • the third and the fourth wall 33, 34 are not coplanar, and they are preferably at right angles to each other.
  • the volute 21 also comprises:
  • the first connection zone 30 is a junction edge 300 between the first and the second wall 51, 52 or a rounded fitting or a flat chamfer.
  • a first translation of the junction edge 300 or the rounded fitting or the flat chamfer intersects a least a part of the first inlet opening 210, the first translation occurring along a direction identified by the axis 220 of rotation.
  • the first inlet opening 210 of the volute 21 is not parallel to any of the walls of the enclosure 3.
  • the hood 1 comprises a first structure 71 having a horizontal main direction of extension and a second structure 72 overlapping the first structure 71 and having a vertical main direction of extension.
  • the first structure 71 conveniently defines a collector which facilitates the conveying of the air into the second structure 72.
  • the enclosure 3 lies inside the second structure 72.
  • This invention also relates to a system comprising:

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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)
  • Glass Compositions (AREA)

Claims (10)

  1. Haube für eine Privatküche, umfassend:
    - ein Zentrifugalgebläse (2), umfassend ein Spiralgehäuse (21) und ein Rad (22), positioniert im Spiralgehäuse (21), wobei das Rad (22) eine Rotationsachse (220) aufweist und das Spiralgehäuse (21) eine erste Zuluftöffnung (210) umfasst, die das Einströmen von Luft in das Spiralgehäuse (21) ermöglicht, und das Spiralgehäuse (21) eine erste Seite (211) umfasst, die sich quer zu einer durch die Rotationsachse (220) identifizierten Richtung erstreckt, und die erste Seite (211) die erste Zuluftöffnung (210) umschreibt;
    - eine Umhausung (3), enthaltend das Spiralgehäuse (21) und das Rad (22), wobei die Umhausung (3) eine erste und eine zweite Wand (51, 52) umfasst, die gegenseitig konvergieren und in einer ersten Zone (30) der gegenseitigen Verbindung die erste und die zweite Wand (51, 52) verbinden, die nicht in der gleichen Ebene liegen;
    wobei mindestens ein Teil der ersten Seite (211) des Spiralgehäuses (21) der ersten Verbindungszone (30) zugewandt ist, wobei es sich bei der ersten Verbindungszone (30) um eine Zusammenfügungskante (300) zwischen der ersten und der zweiten Wand (51, 52) oder um eine abgerundete Befestigung oder eine flache Abfasung handelt;
    dadurch gekennzeichnet, dass eine erste Verschiebung der Zusammenfügungskante (300) oder der abgerundeten Befestigung oder der flachen Abfasung mindestens einen Teil der ersten Zuluftöffnung (210) überschneidet, wobei die erste Verschiebung entlang einer Richtung erfolgt, die durch die Rotationsachse (220) definiert ist.
  2. Haube nach Anspruch 1, dadurch gekennzeichnet, dass sich die erste Zuluftöffnung (210) in der Umhausung (3) befindet und der ersten Verbindungszone (30) zugewandt ist.
  3. Haube nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Umhausung (3) einen inneren Bereich mit dem Bereich eines Parallelepipeds oder eines Würfels formt.
  4. Haube nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Wand (51) und die zweite Wand (52) im Wesentlichen vertikal sind.
  5. Haube nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie eine Zierabdeckung (4) umfasst, aufweisend einen frontseitigen Abschnitt, der im Wesentlichen parallel zu einer Referenzebene (40) angeordnet ist, wobei der frontseitige Abschnitt der Zierabdeckung (4) mindestens einen Teil der Umhausung (3) vor einem Beobachter verbirgt und die zweite Wand (52) der Abdeckung (3) im Wesentlichen parallel zu einer Referenzebene (40) angeordnet ist und eine vertikale Ebene die Rotationsachse (220) enthält, die mit der Referenzebene (40) einen spitzen Winkel von 25° bis 65° formt.
  6. Haube nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Umhausung (3) eine dritte und eine vierte Wand (33, 34) umfasst, die in eine zweite Zone (301) der gegenseitigen Verbindung konvergieren, wobei die dritte und die vierte Wand (33, 34) nicht in der gleichen Ebene liegen, wobei das Spiralgehäuse (21) umfasst:
    - eine zweite Seite (212), die sich quer zu einer Richtung erstreckt, die durch die Rotationsachse (220) definiert ist;
    - eine zweite Zuluftöffnung (213), umschrieben von der zweiten Seite (212), wobei die zweite Seite (212) der zweiten Verbindungszone (301) zugewandt ist.
  7. Haube nach Anspruch 6, dadurch gekennzeichnet, dass sich die zweite Zuluftöffnung (213) in der Umhausung (3) befindet und der zweiten Verbindungszone (301) zugewandt ist.
  8. Haube nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Umhausung (3) eine untere Öffnung (35) umfasst, durch die Luft in die Umhausung (3) einströmt, wobei die untere Öffnung (35) nach unten gerichtet ist.
  9. Haube nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Zuluftöffnung (210) des Spiralgehäuses (21) nicht parallel zu irgendeiner der Wände der Umhausung (3) verläuft.
  10. Haube nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie aus einer ersten imaginären vertikalen Ebene (9) besteht, enthaltend eine erste und eine zweite Kante der Umhausung (3), wobei die Umhausung (3) die Form eines Würfels oder eines Parallelepipeds aufweist und die erste und die zweite Kante parallel verlaufen und nicht derselben Wand der Umhausung (3) angehören, wobei die Rotationsachse (220) des Rads (22) und die erste imaginäre Ebene (9) parallel verlaufen, miteinander übereinstimmen oder einen Winkel von weniger als 20° bilden.
EP12004126.4A 2011-05-31 2012-05-29 Abzugshaube Active EP2530388B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12004126T PL2530388T3 (pl) 2011-05-31 2012-05-29 Okap wyciągowy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000040A ITRN20110040A1 (it) 2011-05-31 2011-05-31 Cappa

Publications (2)

Publication Number Publication Date
EP2530388A1 EP2530388A1 (de) 2012-12-05
EP2530388B1 true EP2530388B1 (de) 2015-10-14

Family

ID=44554834

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12004126.4A Active EP2530388B1 (de) 2011-05-31 2012-05-29 Abzugshaube

Country Status (3)

Country Link
EP (1) EP2530388B1 (de)
IT (1) ITRN20110040A1 (de)
PL (1) PL2530388T3 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105757744B (zh) * 2014-12-19 2017-12-19 广东顺德村田电器有限公司 一种吸油烟机用的吸风净化装置
CN205779904U (zh) * 2015-11-23 2016-12-07 华帝股份有限公司 一种吸油烟机蜗壳
CN106402973B (zh) * 2016-11-09 2019-04-26 华帝股份有限公司 一种具有降噪功能的油烟机蜗壳
CN110822505B (zh) * 2018-08-10 2021-05-25 佛山市顺德区美的洗涤电器制造有限公司 吸油烟机
CN113864838A (zh) * 2021-09-15 2021-12-31 杭州帅丰科技有限公司 一种立体降噪的集成灶
CN114777181B (zh) * 2022-06-21 2022-09-20 杭州老板电器股份有限公司 可变双腔吸油烟机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20005154U1 (de) * 2000-03-15 2000-06-08 Buercher Friedrich Dunstabzugshaube
CN100495874C (zh) * 2003-07-28 2009-06-03 张志远 一种磁悬浮滚筒转子式节能全自动抽油烟机
CN200972194Y (zh) * 2006-10-18 2007-11-07 博西华电器（江苏）有限公司 抽油烟机
WO2008047826A1 (fr) * 2006-10-18 2008-04-24 Panasonic Corporation Hotte de cuisinière

Also Published As

Publication number Publication date
ITRN20110040A1 (it) 2012-12-01
EP2530388A1 (de) 2012-12-05
PL2530388T3 (pl) 2016-03-31

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