EP0940632A1 - Hotte d'aspiration - Google Patents

Hotte d'aspiration Download PDF

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Publication number
EP0940632A1
EP0940632A1 EP99104375A EP99104375A EP0940632A1 EP 0940632 A1 EP0940632 A1 EP 0940632A1 EP 99104375 A EP99104375 A EP 99104375A EP 99104375 A EP99104375 A EP 99104375A EP 0940632 A1 EP0940632 A1 EP 0940632A1
Authority
EP
European Patent Office
Prior art keywords
air
extractor hood
air outlet
housing edge
edge parts
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
EP99104375A
Other languages
German (de)
English (en)
Other versions
EP0940632B1 (fr
Inventor
Jochen Dipl.-Ing. Klemm (Fh)
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 Bosch und Siemens 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP0940632A1 publication Critical patent/EP0940632A1/fr
Application granted granted Critical
Publication of EP0940632B1 publication Critical patent/EP0940632B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans

Definitions

  • the invention relates to an extractor hood according to the preamble of claim 1.
  • An extractor hood of this type is from the utility model DE-GM 78 02 041 U1 known.
  • the radial fan housings are each about one Third of its scope is open. Your open pages face each other. Between they have vertical swivel axes of two flaps. With recirculation mode of the flaps they extend in front of a vertical plane in which the two Rotation axes of the radial fans lie in the radial fans in close to them Rotors and thereby prevent their air flows between the two rotors can get into the rear part of the extractor hood.
  • the flaps When the flaps are in the exhaust mode, their free ends extend forward to a front opening edge of the blower housing, so that the Air flows from both radial fans between their rotors into the rear Guide part of the extractor hood.
  • the rotor of the radial fan arranged on the right seen in plan view rotates clockwise, and the rotor of the left one Radial blower seen from above in a counterclockwise direction.
  • the blowers have spiral casings through which the one formed between them and their rotors Distance in the direction of rotor rotation is increasingly wider.
  • a radial fan with spiral casing of this type is also from the utility model DE-G 83 08 512.2 U1 known.
  • the bottom of the extractor hoods is usually through one Grid or perforated plate or another air-permeable plate-like element is formed, over which a grease filter is arranged.
  • DE utility model 1 987 333 is an extractor hood with a grease filter, an odor filter with activated carbon known for separating odors and a fan, which in this order are arranged in a housing.
  • DE utility model 91 05 430.3 an extractor hood is known, in which a fan in the air flow path is arranged between a grease filter and an odor filter.
  • Recirculation mode means that the extracted from the extractor hood over a hotplate in a kitchen Air after passing through the grease filter and any, if any Odor filter is poured back into the kitchen.
  • Exhaust mode means that the air cleaned in the extractor hood from the kitchen into the Free is headed.
  • Extractor hoods according to the invention are used in particular as undercounter hoods Use, which can be mounted under an upper cabinet, which over a hotplate is arranged in the kitchen.
  • the object of the invention is to achieve a better efficiency To improve air flows for recirculation and exhaust air operation, especially in the Blowers and at their air outlets for both recirculation and exhaust air operation to create the same flow conditions. Few parts are required for this be and the size can be kept small.
  • Another advantage of the invention is that the complete Width of the blower housing can be exploited to ensure optimal Helical shape of the air plenum between the impellers and their fan housings to realize.
  • One remains in both exhaust air mode and recirculation mode Get the optimal shape of the screw and the fan air flows are very short Way out of the blowers. This results in both operating modes an equal, high efficiency of the fan air delivery. For the invention only a few parts are required and a small size can be maintained.
  • the extractor hood 2 according to the invention shown schematically in Figure 3 has a Housing 4 with a front wall 6, side walls 7, a rear wall 8, a top wall 10 and a bottom 12, the latter at least in the range of two in the housing 4 housed fans or radial blowers 14 and 16 permeable to air is. Located in the airway between the housing base 12 and the fans 16 a grease filter, not shown.
  • an odor filter which acts as an odor absorbing material
  • the extractor hood can be set to either recirculation mode or exhaust air mode.
  • the outlet air flows of the two radial fans 14 and 16 through circulating air outlet openings 22 and 24, which are in an inclined front section the top wall 10 are formed, flow back into the room (kitchen) from which the air is sucked through the housing base 12 by the blowers 14 and 16 has been.
  • the exhaust air flows of the two fans 14 and 16 in the housing 4 to the rear and then either to a ceiling exhaust opening 26 or are directed to a rear wall exhaust opening 28, from where they through a not shown Exhaust air duct from the kitchen can be directed to the outside.
  • the Exhaust openings 26 and 28 can initially be closed during the manufacture of the housing 4 stay and then select one during installation over a hotplate 26 or the other 28 can be opened.
  • the radial fan 14 is left and the radial fan 16 arranged on the right, the air outlet openings 22 and 24 are located are in front of the rotor axes of rotation 18 and 20, and the exhaust openings 26 and 28 behind the rotor axes of rotation 18 and 20.
  • the two radial fans 14 and 16 are mirror images arranged to each other.
  • the housing peripheral wall 32 of the fan housing 30 surrounds the impeller arranged in it, hereinafter called rotor 34, spirally, so that the air space formed between the housing peripheral wall 32 and the rotor 34 in the direction of rotation of the rotor has an increasingly larger cross-section.
  • the rotor 34 of the left Fan 14 rotates counterclockwise 36 as viewed in plan view the rotor 34 of the right blower 16 rotates clockwise 38.
  • the Blades 40 of the rotors 34 are only schematically shown as an example.
  • the exhaust air streams of the two blowers 14 and 16 in contact with one another are in Fig.1 for recirculation mode by forward arrows 42 and 43 and in 2 schematically shown for exhaust air operation by arrows 44 and 45 directed towards the rear.
  • the air intakes of the blowers 14 and 16 can be made in any known manner are arranged and are therefore not shown.
  • the air outlets of the two Blowers are each through an air outlet opening 50 and 54 in the housing peripheral wall 32 formed.
  • Each of the two air outlet openings 50 and 54 is circumferential by a front housing edge part 51 or 55 and a rear housing edge part 52 or 56 limited. In the transverse direction of the extractor hood are on the one hand the front housing edge parts 51 and 55 are arranged opposite one another and the rear housing edge parts 52 and 56 are arranged opposite one another.
  • the two fan housings 30, but at least their housing peripheral walls 32 with the air outlet openings 50 and 54, are about one to the theoretical axes of rotation 18 and 20 of the rotors 34 are axial or coincident with the vertical axis of rotation between a rotational position shown in FIG. 1 for recirculation mode and one in Fig.2 shown rotating position for exhaust air rotation.
  • the air outlet openings 50 and 54th directed diagonally towards each other.
  • the two air outlet openings 50 and 54 are obliquely to the rear arranged opposite each other.
  • the housing edge parts 51, 52, 55 and 56 have such a radial length and axial Width that the two rear at the rotary position shown in Fig.1 for recirculation mode Housing edge parts 52 and 56 of the air outlet openings 50 and 54 between the are arranged so close to one another, preferably to one another concern that they together form an air barrier, which an air flow from the Air outlet openings 50 and 54 blocked to the rear.
  • the design is such that further in the rotary position shown in Fig.2 for exhaust air operation, the two front housing edge parts 51 and 55 are so closely spaced between the two rotors 34 are, preferably touching each other, that together they form an air barrier, which forwards an air flow from the air outlet openings 50 and 54 lock.
  • the fan housing 30 or at least its housing peripheral wall 32 can either individually or together in each case manually around the rotor axes of rotation 18 or 20 can be adjusted between the two rotary positions. So that both housing peripheral walls 32 with their air outlet openings 50 and 54 the exact at each rotation adjustment To reach the rotational position of Fig.1 or Fig.2, it is appropriate to by to connect mechanical connecting means so that they are synchronized together are adjustable between the two rotational positions of Fig.1 and 2.
  • a mechanical Connection means can be, for example, a rack 60, which has on both sides a toothing 62 and 63, in which an outer peripheral toothing 64 of the left blower housing 30 or an outer peripheral toothing 65 of the right blower housing 30 engages.
  • the rack 60 can from the front (or from the back) of the extractor hood 2 between manually the front position shown in Fig.1 for recirculation mode and that shown in Fig.2 rear position for exhaust air operation can be adjusted, both at the same time Housing peripheral walls 32 with the air drain openings 50 and 54 between the two 1 and 2 shown in the rotational positions adjusted.
  • Other mechanical Connecting means for manual actuation of the two housing peripheral walls 32 can be cables, for example.
  • an air guide 66 is arranged centrally to them, which in the exhaust air operation shown in Fig.2, the air outlet flows 44th and 45 of the two fans upwards to the ceiling exhaust air opening 26.
  • the rear housing edge parts 52 and 56 border on side walls of the air baffle 66, preferably on these side walls fit tightly so that no leakage air can escape laterally.
  • the air baffle 66 could be used for the exhaust air operation shown in Fig.2 air elements the rear housing edge parts 52 and 56 up to the rear wall exhaust opening 28 extend.

Landscapes

  • 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)
  • Threshing Machine Elements (AREA)
  • Ventilation (AREA)
EP99104375A 1998-03-05 1999-03-04 Hotte d'aspiration Expired - Lifetime EP0940632B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19809562A DE19809562A1 (de) 1998-03-05 1998-03-05 Dunstabzugshaube
DE19809562 1998-03-05

Publications (2)

Publication Number Publication Date
EP0940632A1 true EP0940632A1 (fr) 1999-09-08
EP0940632B1 EP0940632B1 (fr) 2002-11-13

Family

ID=7859894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104375A Expired - Lifetime EP0940632B1 (fr) 1998-03-05 1999-03-04 Hotte d'aspiration

Country Status (3)

Country Link
EP (1) EP0940632B1 (fr)
DE (2) DE19809562A1 (fr)
ES (1) ES2188048T3 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100447426C (zh) * 2005-07-27 2008-12-31 台达电子工业股份有限公司 离心风扇
US8074637B2 (en) * 2004-06-23 2011-12-13 Panasonic Corporation High frequency heating apparatus having a range hood
EP2535647A1 (fr) * 2011-06-16 2012-12-19 Miele & Cie. KG Hotte aspirante pour un four ou une plaque de cuisson
CN102889626A (zh) * 2012-09-03 2013-01-23 谈启明 吸油烟机
CN105928168A (zh) * 2016-06-21 2016-09-07 珠海格力电器股份有限公司 一种具有双离心风机的进风结构及其空调器
CN106482195A (zh) * 2016-12-29 2017-03-08 宁波方太厨具有限公司 串联双风机降噪型吸油烟机
WO2017041415A1 (fr) * 2015-09-08 2017-03-16 广东美的厨房电器制造有限公司 Hotte de cuisine
CN110469524A (zh) * 2019-07-25 2019-11-19 宁波方太厨具有限公司 一种离心风机及其控制方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100591922C (zh) * 2005-06-14 2010-02-24 鸿富锦精密工业（深圳）有限公司 双风扇散热模组
CN102889625B (zh) * 2012-09-03 2015-09-30 谈启明 抽油烟机
CN103104527A (zh) * 2013-01-24 2013-05-15 梁挺 双蜗壳风轮风机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7802041U1 (de) * 1978-01-24 1978-05-03 G. Bauknecht Gmbh, Elektrotechnische Fabriken, 7000 Stuttgart Dunstabzugshaube
DE3625975A1 (de) * 1986-07-31 1988-02-11 Buderus Ag Umschaltvorrichtung fuer den wahlweisen umluft- oder abluftbetrieb einer dunstabzugshaube

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7802041U1 (de) * 1978-01-24 1978-05-03 G. Bauknecht Gmbh, Elektrotechnische Fabriken, 7000 Stuttgart Dunstabzugshaube
DE3625975A1 (de) * 1986-07-31 1988-02-11 Buderus Ag Umschaltvorrichtung fuer den wahlweisen umluft- oder abluftbetrieb einer dunstabzugshaube

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8074637B2 (en) * 2004-06-23 2011-12-13 Panasonic Corporation High frequency heating apparatus having a range hood
CN100447426C (zh) * 2005-07-27 2008-12-31 台达电子工业股份有限公司 离心风扇
EP2535647A1 (fr) * 2011-06-16 2012-12-19 Miele & Cie. KG Hotte aspirante pour un four ou une plaque de cuisson
CN102889626A (zh) * 2012-09-03 2013-01-23 谈启明 吸油烟机
WO2017041415A1 (fr) * 2015-09-08 2017-03-16 广东美的厨房电器制造有限公司 Hotte de cuisine
US10578316B2 (en) 2015-09-08 2020-03-03 Guangdong Midea Kitchen Appliances Manufacturing Co., Ltd. Range hood
CN105928168A (zh) * 2016-06-21 2016-09-07 珠海格力电器股份有限公司 一种具有双离心风机的进风结构及其空调器
CN106482195A (zh) * 2016-12-29 2017-03-08 宁波方太厨具有限公司 串联双风机降噪型吸油烟机
CN110469524A (zh) * 2019-07-25 2019-11-19 宁波方太厨具有限公司 一种离心风机及其控制方法
CN110469524B (zh) * 2019-07-25 2020-09-18 宁波方太厨具有限公司 一种离心风机及其控制方法

Also Published As

Publication number Publication date
DE19809562A1 (de) 1999-09-09
ES2188048T3 (es) 2003-06-16
DE59903365D1 (de) 2002-12-19
EP0940632B1 (fr) 2002-11-13

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