EP2530388A1 - Abzugshaube - Google Patents

Abzugshaube Download PDF

Info

Publication number
EP2530388A1
EP2530388A1 EP20120004126 EP12004126A EP2530388A1 EP 2530388 A1 EP2530388 A1 EP 2530388A1 EP 20120004126 EP20120004126 EP 20120004126 EP 12004126 A EP12004126 A EP 12004126A EP 2530388 A1 EP2530388 A1 EP 2530388A1
Authority
EP
European Patent Office
Prior art keywords
enclosure
volute
wall
hood according
inlet opening
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.)
Granted
Application number
EP20120004126
Other languages
English (en)
French (fr)
Other versions
EP2530388B1 (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. Ina 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 wall 51 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 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:
  • 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:

Landscapes

  • 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)
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 true EP2530388A1 (de) 2012-12-05
EP2530388B1 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)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105444239A (zh) * 2015-11-23 2016-03-30 华帝股份有限公司 一种新式吸油烟机蜗壳
CN105757744A (zh) * 2014-12-19 2016-07-13 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
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
CN110822505A (zh) * 2018-08-10 2020-02-21 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
CN114777181A (zh) * 2022-06-21 2022-07-22 杭州老板电器股份有限公司 可变双腔吸油烟机

Citations (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
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
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

Patent Citations (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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105757744A (zh) * 2014-12-19 2016-07-13 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
CN105444239A (zh) * 2015-11-23 2016-03-30 华帝股份有限公司 一种新式吸油烟机蜗壳
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
CN110822505A (zh) * 2018-08-10 2020-02-21 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
CN114777181A (zh) * 2022-06-21 2022-07-22 杭州老板电器股份有限公司 可变双腔吸油烟机
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

Also Published As

Publication number Publication date
ITRN20110040A1 (it) 2012-12-01
EP2530388B1 (de) 2015-10-14
PL2530388T3 (pl) 2016-03-31

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