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WO2008128879A1 - Ventilateur pour hotte aspirante - Google Patents

Ventilateur pour hotte aspirante Download PDF

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Publication number
WO2008128879A1
WO2008128879A1 PCT/EP2008/054145 EP2008054145W WO2008128879A1 WO 2008128879 A1 WO2008128879 A1 WO 2008128879A1 EP 2008054145 W EP2008054145 W EP 2008054145W WO 2008128879 A1 WO2008128879 A1 WO 2008128879A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan
housing
air
housing parts
air outlet
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.)
Ceased
Application number
PCT/EP2008/054145
Other languages
German (de)
English (en)
Inventor
Abdullah Adar
Holger Eich
Stefan Knoth
Wilfried Rückert
Volkmar Uebele
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 WO2008128879A1 publication Critical patent/WO2008128879A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/162—Double suction pumps
    • 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
    • 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
    • F04D29/4246—Fan casings comprising more than one outlet

Definitions

  • the invention relates to a fan for a cooker hood.
  • Fans of an extractor hood are usually used to create a negative pressure to suck in fumes or steam from a space below the hood.
  • the sucked-in vapor or the sucked-in fumes are cleaned, in particular via a filter of
  • the conditioned air enters the fan housing and is discharged via an outlet provided for this purpose and discharged, for example via an exhaust pipe to the environment.
  • auxiliary flow In some extractor hoods, it is necessary in addition to the exhaust air flow, is removed by the treated air from the hood, to create an auxiliary flow, by means of which, for example, the flow conditions are influenced below the hood. In particular, to form a downwardly directed air curtain on the edge of the hood an auxiliary or additional flow is needed. To generate such an auxiliary flow, an auxiliary fan is generally used in the prior art, can be sucked through the air from the environment of the hood and discharged through the edge of the hood.
  • a blower which has a fan with two provided on a base plate Radschaufelringen. Due to the geometry of the fan wheel two separate chambers are formed in the fan housing. These chambers are connected to an air outlet of the blower housing, which is also divided by a partition wall. By this blower two parallel air streams are to be formed.
  • the disadvantage of such a blower is in particular in the complex structure and the special design of the individual components, such as the Radschaufelringen on the base plate.
  • the airflow must be routed through ducts or ducts in the cooker hood to the outlet location of the auxiliary flow become. Due to the limited space in the cooker hood and due to the spatial distance between the outlet of the auxiliary flow and the exhaust duct or exhaust pipe over which the exhaust air is to be removed from the hood, this is not always possible.
  • a centrifugal fan with a divided air distributor is also known.
  • the air flow generated by a fan is also passed into two chambers separated by a partition wall of the fan housing and can be discharged from the individual chambers at different positions, which are arranged offset along the circumference of the fan.
  • the disadvantage of this fan is that the partition must have a special design to prevent noise.
  • the air jet emerging from the individual air outlets is not adjustable due to the fixed position of the partition wall.
  • Object of the present invention is therefore to provide a blower, in which a simple way, a targeted generation and delivery of an auxiliary flow from the blower housing is possible.
  • the object is achieved by a fan for a cooker hood with at least one fan and a surrounding at least one fan fan housing.
  • the fan is characterized in that the inside of the fan housing forms a common fan chamber of the fan for the at least one fan and at least two air outlet openings are provided on the fan chamber over the circumference of the fan housing.
  • the fan chamber is formed or limited exclusively by the inside of the fan housing, the sucked into the fan chamber air flow can be divided into the different air outlet openings.
  • the air outlet preferably closes air outlets, for example in the form of air outlet.
  • the fan according to the invention thus offers the possibility of existing in the fan chamber, that is sucked by the at least one fan air for the purposefully adjust different uses of the air streams.
  • the volume flow that is supplied to the individual air outlet openings can be influenced by the geometry of the fan housing.
  • the fan housing preferably consists of at least two housing parts and each housing part has an air outlet. As housing parts are
  • housing parts which are arranged axially adjacent to each other. These housing parts are connected to one another or fastened to one another via suitable connecting means, for example via a screw connection, clamping connection or a welded connection.
  • the air outlet on the housing parts is in particular a part surrounding the air outlet opening, in particular an outlet nozzle, of the housing part.
  • fan chamber preferably two fan wheels are accommodated, which sit on a common shaft and from a drive motor via
  • Translation means are driven.
  • the two fan wheels sitting on a common shaft they can be driven by a single drive motor.
  • An additional engine, which could lead to additional noise, is not required.
  • the proposed translation means which are, for example, clutches between the fan wheels and the shaft, the output volume flow to the individual Air outlets are influenced separately.
  • the at least two fan wheels are arranged so that each of the fan wheels delivers air to one of the air outlets.
  • the gear ratio of the translation means of the two translation means is different.
  • air flow can be additionally influenced.
  • one of the fan wheels can be driven at a higher speed and thereby the air flow to the air outlet associated with this fan wheel can be increased.
  • the air outlet associated fan wheel can be driven at a lower speed.
  • the fan housing is preferably made of two housing parts and the two housing parts have different dimensions.
  • the dimensions of the housing parts differ along the longitudinal axis of the fan from each other. This dimension is also referred to as the width of the housing part.
  • the width of the housing parts may be adapted to the axial width of the fan wheels located in the housing.
  • the fan housing consists of two housing parts and each of the housing parts has an air inlet opening.
  • air can be supplied to the fan from two sides.
  • the fan in this case represents a so-called double-flow fan.
  • This type of air duct favors the separate adjustment of the desired flows in the air flows discharged from the air outlets.
  • the fan wheels are operated at different speeds, it is of
  • the smallest angle between the at least two air outlets is at least 45 °. This allows a targeted delivery of
  • Figure 1 a schematic sectional view of an embodiment of the fan according to the invention
  • Figure 2 is another schematic sectional view of the embodiment of the fan of Figure 1;
  • FIG. 3 is a schematic sectional view of another embodiment of the fan according to the invention.
  • Figure 4 is a schematic sectional view of an extractor hood with a fan provided therein according to the invention.
  • the housing 2 of the fan 1 consists of two housing parts 21, 22.
  • the housing parts 21, 22 have a substantially trough or cup-shaped basic shape.
  • the two housing parts 21, 22 are in the illustrated embodiment via a flange 23 which extends at the edge of the two housing parts 21, 22 connected to each other.
  • the connection can be made by screws or terminals (not shown).
  • the housing 2 without flanges 23 to manufacture.
  • the housing parts 21, 22 are connected to each other, for example by welding.
  • housing parts 21 and 22 each have an air inlet opening 5, 6 is provided.
  • the air inlet openings 5 and 6 are located on opposite sides of the fan housing 2.
  • a fan chamber 25 is limited in the interior of the housing 2.
  • This fan chamber 25 has a substantially cylindrical shape. Over the circumference of the fan chamber 25 are two in the axial direction and circumferentially offset from each other air outlet openings 31, 41 are provided. These air outlet openings 31, 41 are surrounded by air outlets 3, 4.
  • a first air outlet 3 in the form of a
  • Air outlet provided. At this air outlet 3, an exhaust pipe or an exhaust duct (not shown) can be connected. On the housing part 22, a further air outlet 4 is provided. Also at this air outlet 4, a pipe or a channel (not shown) for guiding the exiting the fan 1 air flow can be attached.
  • the air outlets or outlet ports 3 and 4 are due to the fact that they are each provided on one of the housing parts 21, 22, along the longitudinal axis L of the fan 1 to each other.
  • fan housing 2 two fan wheels 7 and 8 are added.
  • the fan wheels 7 and 8 are seated on a drive shaft 9 of a drive motor 10.
  • the motor 10 is fastened to the housing part 21 in the illustrated embodiment. However, it is also within the scope of the invention to provide the motor 10 on the opposite housing part 22 or in the middle between the two housing parts 21, 22.
  • the fan wheels 7 and 8 are mounted on the shaft 9 via gear means 1 1, 12.
  • the translation means 1 1, 12 may be in particular couplings.
  • the fan wheels 7 and 8 are thus driven via the drive motor 10, which drives the shaft 9, and via the transmission means 11, 12 with the respective transmission ratio.
  • the gap formed between the outer circumference of the fan wheels 7, 8 and the inner side 24 of the housing 2 is so small that an influence on the partial flows, which are generated by the two fan wheels 7, 8, even without the provision of a partition wall between the fan wheels 7, 8 is avoided.
  • the fan 1 is shown in side view.
  • the air inlet opening 6 is shown without cover for the sake of clarity.
  • a grid or other protection device may be provided in the air inlet opening 6 but a grid or other protection device may be provided.
  • the outlet 3 and 4 are arranged offset from one another over the circumference of the housing 2 or rotated. The angle between the two outlet 3 and 4 is 180 ° in the illustrated embodiment.
  • Figure 2 is indicated by the dashed line another embodiment of the fan 1, in which the housing part 22 is connected to the housing part 21, that the outlet 4 is arranged at an angle of less than 180 ° to the outlet 3.
  • the relative orientation of the housing parts 21 and 22 to each other can be selected according to the geometry of the hood, in which the fan 1 is to be used.
  • FIG. 3 shows a further embodiment of the present invention.
  • the width that is, the dimension of the housing parts 21 and 22 in the direction of the longitudinal axis L of the housing 2 is different.
  • the dimensions of the fan wheels 7 and 8, that is, the dimension along the longitudinal axis L of the fan 1, are different. Due to the different size of the fan wheels 7, 8 and the housing parts 21 and 22 with the provided thereon outlet 3 and 4 two different air streams can be generated.
  • an air flow can be removed, which has a larger volume flow.
  • an air flow with a lower volume flow can be discharged through the outlet connection 4, which can be used, for example, to produce an air curtain.
  • FIG. 4 shows the installation of a fan according to the invention in one
  • Extractor hood shown schematically.
  • the extractor hood 13 has a chimney 14 with a vapor shield 15 arranged underneath.
  • the illustrated extractor hood 13 thus represents a food.
  • the fan 1 is provided in the chimney 14.
  • An air outlet 3 of the fan 1 is in this case directed upwards and connected to an exhaust duct 16, can be discharged through the air to the outside.
  • the second air outlet 4 is opposite the first Air outlet 3 arranged offset and points in the direction of the vapor shield 15 of the extractor hood 13.
  • the angle between the two air outlets 3 and 4 is in the illustrated embodiment 150 °.
  • an air duct 17 connects. This runs from the chimney 14 through the vapor shield 15 to the front edge of the vapor shield 15.
  • At the air outlet 4 an air duct 17 connects. This runs from the chimney 14 through the vapor shield 15 to the front edge of the vapor shield 15.
  • an air outlet gap 18 is provided. Via the air outlet gap 18, the air flow diverted from the air outlet 4 from the fan 1 can be discharged from the extractor hood 13 to form an air curtain.
  • the fan according to the invention can be produced by separating a double-flow fan housing in a parting plane, for example in the center of the housing or in a plane offset from the middle of the housing, and rotating the blow-out direction of the fan to produce an additional flow around the fan axis until it reaches the fan Direction of the desired flow corresponds. Subsequently, the separation points are closed.
  • the fan according to the invention thus a number of advantages can be achieved.
  • existing components can be used.
  • An auxiliary fan is not necessary for generating the auxiliary or additional flow in the fan according to the invention. Since no additional fan and also no partition or other separation is provided in the fan chamber, there are no additional noise sources.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un ventilateur (1) pour une hotte aspirante, comprenant au moins une roue de ventilateur (7, 8) et un logement de ventilateur (2) entourant la / les roue(s) de ventilateur (7, 8), caractérisé en ce que le côté intérieur (24) du logement de ventilateur (2) forme une chambre de ventilation commune (25) du ventilateur (1) pour la / les roue(s) de ventilateur (7, 8), et en ce qu'au moins deux ouvertures d'évacuation d'air (31, 41) sont ménagées de manière décalée dans la chambre de ventilation (25) sur la périphérie du logement de ventilateur (2).
PCT/EP2008/054145 2007-04-23 2008-04-07 Ventilateur pour hotte aspirante Ceased WO2008128879A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007019056.7 2007-04-23
DE200710019056 DE102007019056A1 (de) 2007-04-23 2007-04-23 Lüfter für Dunstabzugshaube

Publications (1)

Publication Number Publication Date
WO2008128879A1 true WO2008128879A1 (fr) 2008-10-30

Family

ID=39638849

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/054145 Ceased WO2008128879A1 (fr) 2007-04-23 2008-04-07 Ventilateur pour hotte aspirante

Country Status (2)

Country Link
DE (1) DE102007019056A1 (fr)
WO (1) WO2008128879A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015146425A1 (fr) * 2014-03-28 2015-10-01 三浦工業株式会社 Soufflante
CN114165468A (zh) * 2021-11-23 2022-03-11 珠海格力电器股份有限公司 一种风道结构及风扇
CN114658690A (zh) * 2022-03-23 2022-06-24 广东敏卓机电股份有限公司 离心风机及出风结构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104879322B (zh) * 2015-05-29 2018-08-28 合肥美的电冰箱有限公司 用于冰箱的风机以及具有该风机的冰箱
CN106438481B (zh) * 2016-09-05 2019-03-26 青岛海尔空调器有限总公司 用于空调器贯流风机的壳体和空调器
DE102017210758A1 (de) * 2017-06-27 2018-12-27 BSH Hausgeräte GmbH Gebläse
KR102452711B1 (ko) * 2017-12-18 2022-10-11 현대자동차주식회사 이중 스크롤 방식 양방향 블로워

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2330938A (en) * 1941-11-14 1943-10-05 Torrington Mfg Co Multiple outlet blower assembly
FR1077431A (fr) * 1952-05-19 1954-11-08 Oerlikon Maschf Ventilateur centrifuge
GB1407408A (en) * 1971-10-21 1975-09-24 British Gas Corp Air supply for breathing apparatus
US4476773A (en) * 1981-11-12 1984-10-16 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh Air diffuser assembly
DE19908501A1 (de) * 1999-02-26 2000-03-30 Daimler Chrysler Ag Radialgebläse

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020119044A1 (en) 2001-02-26 2002-08-29 O'connor, John F. Centrifugal blower with partitioned scroll diffuser
ITAN20010008U1 (it) 2001-03-01 2002-09-01 Giacalone Ignazio Convogliatore aria per elettrodomestici cappe da cucina alimentato damotore elettrico

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2330938A (en) * 1941-11-14 1943-10-05 Torrington Mfg Co Multiple outlet blower assembly
FR1077431A (fr) * 1952-05-19 1954-11-08 Oerlikon Maschf Ventilateur centrifuge
GB1407408A (en) * 1971-10-21 1975-09-24 British Gas Corp Air supply for breathing apparatus
US4476773A (en) * 1981-11-12 1984-10-16 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh Air diffuser assembly
DE19908501A1 (de) * 1999-02-26 2000-03-30 Daimler Chrysler Ag Radialgebläse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015146425A1 (fr) * 2014-03-28 2015-10-01 三浦工業株式会社 Soufflante
CN114165468A (zh) * 2021-11-23 2022-03-11 珠海格力电器股份有限公司 一种风道结构及风扇
CN114658690A (zh) * 2022-03-23 2022-06-24 广东敏卓机电股份有限公司 离心风机及出风结构

Also Published As

Publication number Publication date
DE102007019056A1 (de) 2008-10-30

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