EP1846699A1 - Dispositif d'evacuation de fumees pour la cuisine - Google Patents

Dispositif d'evacuation de fumees pour la cuisine

Info

Publication number
EP1846699A1
EP1846699A1 EP05850432A EP05850432A EP1846699A1 EP 1846699 A1 EP1846699 A1 EP 1846699A1 EP 05850432 A EP05850432 A EP 05850432A EP 05850432 A EP05850432 A EP 05850432A EP 1846699 A1 EP1846699 A1 EP 1846699A1
Authority
EP
European Patent Office
Prior art keywords
filter element
kitchen extractor
kitchen
air flow
openings
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.)
Withdrawn
Application number
EP05850432A
Other languages
German (de)
English (en)
Inventor
Michael Reule
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 EP1846699A1 publication Critical patent/EP1846699A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F24C15/2035—Arrangement or mounting of filters
    • 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
    • F24C15/2078—Removing cooking fumes movable
    • F24C15/2092—Removing cooking fumes movable extendable or pivotable

Definitions

  • the invention relates to a kitchen extractor according to the preamble of claim 1.
  • the Lucas Inc. Wrasenstrom is cleaned in the filter element.
  • the filter element separates a portion of the entrained in the air flow fat.
  • the deposited fraction is dependent on the inflow velocity, since the inflow velocity determines a residence time of the air flow in the filter element. If the flow velocity is too high, fat particles are entrained by the air flow through the filter element.
  • the object of the invention is in particular to provide a generic kitchen extractor with a particularly homogeneous profile of the flow velocity, without affecting a fat absorption capacity or an effective filter area of the filter element.
  • the object is achieved by the features of claim 1, while advantageous embodiments and further developments of the invention can be taken from the subclaims.
  • the invention is based on a kitchen extractor with at least one flat, arranged in a Wrasenfangle filter element which is arranged in an air flow which can be generated by a fan.
  • At least one means for homogenizing the air flow is arranged in the direction of the air flow after the filter element.
  • cost-effective, continuous single-layer filter elements with homogeneous fill can be used. It can filter elements with uniformly high, be used over an entire surface of the filter element constant fat absorption capacity, the effective filter surface is not affected by arranged in front of the filter element or filter element in the panels or sheets. Areas with excessive flow velocities, in which fat particles are entrained by the air flow through the filter element, can be safely avoided.
  • the kitchen extractor device can be designed, for example, as a freestanding kitchen or as an extractor hood integrated into a fitted kitchen.
  • the sabot and the filter element may be fixed or extendable.
  • a measure of a homogeneity of the flow velocity in particular a gradient of an absolute value or of an absolute square of a vector field describing the flow velocity on an underside of the filter element can be used, wherein a small value of the gradient averaged over the surface of the filter element indicates a high degree of homogeneity.
  • a “filter element” should be referred to as “planar” if its dimensions in two directions exceed its dimension in the third direction orthogonal to the two directions, or at least by a factor of 5 to 10.
  • the air flow can be both in terms of volumetric flow
  • the fan can be arranged inside or outside the kitchen extractor device.
  • the means is designed as a baffle plate.
  • a cost effective and effective means having advantageous cleaning properties can be achieved.
  • metallic materials and other materials, such as plastics can be used for the preparation of the agent.
  • a formation of medium-caused dead zones or areas with very low flow velocity on the filter element can be avoided if the means is arranged at a distance from the filter element, particularly advantageously at a distance of at least 1 cm and for reasons of Construction- space saving at a distance of at most 10 cm. Good guidance of the air flow can be achieved if the distance of the agent from the filter element in different areas of the agent is different or location-dependent.
  • the component can advantageously also guide or guide a component of the air flow running transversely to a planar extent of the means.
  • An inhomogeneity of the generated without the means of the fan, natural air flow can be compensated particularly flexible if the means has at least two openings of different sizes.
  • An adapted to a spatial variation of a suction pressure of the fan means can be achieved in a structurally simple manner, when the means comprises at least two areas with a plurality of openings, wherein a surface density of the openings in the two areas is different and / or wherein a size of Openings in the two areas is different.
  • the area density of the openings may be a number of openings per unit area as well as a ratio of a total area of the openings in one area to a total area of the corresponding area.
  • a decrease in a suction power of the kitchen extractor device in a horizontal direction away from the fan can be at least reduced if the means a defined in a vertical direction open suction port.
  • the means may define the suction opening, for example, by forming an edge of the suction opening.
  • a kitchen extractor device which can be flexibly adapted to the needs of a user and with always homogeneous suction performance in different configurations can be achieved if the kitchen extractor device comprises an extendable housing part.
  • an adaptable to the configuration of the kitchen extractor device means can be achieved if the means comprises at least two relatively movable elements, which can also be forcibly controlled depending on the configuration of the kitchen extractor device or connected to the pull-out housing part.
  • FIG. 1 shows a kitchen extractor device with a Wrasenfangprocess and with a fan
  • FIG. 2 shows the kitchen extractor device from FIG. 1 in a schematized sectional view from the side, FIG.
  • FIG. 3 shows the kitchen extractor device of Figures 1 and 2 in another schematic sectional view from the front
  • FIG. 6 shows the kitchen extractor device from FIG. 5 in a further schematic sectional view from the front
  • 7 shows the kitchen extractor device from FIGS. 5 and 6 without a filter element in a view from below
  • FIG. 8 shows a further alternative kitchen extractor device with an extendable housing part
  • FIG. 9 shows the kitchen extractor device in a schematic sectional view from the side
  • FIGS. 8 and 9 shows the kitchen extractor device from FIGS. 8 and 9 in a further schematic sectional view from the front
  • FIG. 11 shows the kitchen extractor device from FIGS. 8-10 without a filter element in a view from below
  • FIG. 13 shows the kitchen extractor device from FIG. 12 in a further schematic sectional view from the front
  • FIG. 14 shows the kitchen extractor device from FIGS. 12 and 13 without a filter element in a view from below.
  • Fig. 1 shows a kitchen extractor with a housing made of stainless steel sheet, which consists essentially of a Wrasenfangprocess 10a and a fan box 28a and is provided for mounting above a cooktop. Disposed in the fan box 28a is a per se known per se known fan 14a, which is intended to generate an air flow 16a which extends from an area below the vapor-trapping screen 10a through the vapor-trapping screen 10a and the fan box 28a into a not shown here Air duct flows.
  • a bottom of the Wrasenfang caps 10a covering filter element 12a is installed, through which the air flow 16a is sucked by the fan 14a.
  • a fat content contained in the air flow 16a is at least largely separated.
  • the air flow 16a impinges on the underside of the filter element 12a at a flow velocity.
  • the flow velocity is dependent on the spatial conditions of the fan box 28a and an interior of the Wrasenfangles 10a and by a generated by the fan 14a, dynamic negative pressure profile.
  • the filter element 12a In order to homogenize the air flow 16a or the flow velocity, ie one over the Surface of the filter element 12a to achieve a constant flow velocity as possible, is arranged between the filter element 12a and the fan 14a in the air flow 16a designed as a baffle means 18a, which influences a course of the air flow 16a in the interior of the Wrasenfangles 10a and the fan box 28a to this effect, a negative-pressure profile is as homogeneous as possible on an inner side of the filter element 12a.
  • the means 18a homogenizes the flow velocity at which the air flow 16a hits the filter element 12a.
  • the fan box 28a is in a rear, i. an area facing away from the operator is centrally connected to the Wrasenfangprocess 10a.
  • the means 18a designed as an air baffle is mounted sloping obliquely forwardly into the housing of the kitchen extractor device, so that the means 18a defines a lower edge of a suction opening 32a which opens in a vertical direction 30a to the front.
  • An upper edge of the suction port 32a is formed by an edge 40a, at which the Wrasenfangprocess 10a and the fan box 28a meet.
  • the air flow 16a can flow without an obstacle horizontally backwards from a front region of the vapor-collecting screen 10a into a region of the means 18a which deflects the airflow 16a in a horizontal upward direction into the ventilator box 28a (FIG. 2).
  • a portion of the air flow 16a flowing into the area of the means 18a from a lateral region of the fume catcher 10a is likewise unhindered (FIG. 3).
  • the means 18a is arranged at a location-dependent distance of a few centimeters above the filter element 12a in order to avoid the formation of dead zones caused by the means 18a on the filter element 12a.
  • the planar means 18a designed as an air baffle has three regions 22a-26a each having a multiplicity of openings 20a-20a.
  • the openings 20a-20a are each circular and are punched out of the means 18a (FIG.
  • the first region 22a forms a horseshoe-shaped rear edge of the means 18a and has high area density bead-like openings 20a to counteract a reduction in the flow velocity at the trailing edge of the vapor-trapping screen 10a.
  • the second region 24a forms a central region of the means 18a and is provided with openings 20'a with low surface density, to counteract an excessive flow velocity immediately below the fan box 28a or immediately below a chimney area.
  • the third region 26a is disposed at a front edge of the means 18a and is provided with openings 20 "a of medium to high surface density, which prevent a dead zone immediately below the leading edge of the means 18a.
  • Figures 5 - 14 show further embodiments of the invention.
  • the description essentially addresses differences from the exemplary embodiment illustrated in FIGS. 1 to 4, reference being made to the description of the exemplary embodiment illustrated in FIGS. 1-4 in view of characteristics which remain the same. Analogous features are provided with the same reference numerals, wherein the subdivision of the embodiments, the reference numerals the letters a - d are attached.
  • FIG. 5 shows a kitchen extractor with a Wrasenfangconnect 10b, in which a designed as a baffle means 18b is mounted for homogenizing an air flow 16b.
  • the means 18b has the width of a fan box 28b of the kitchen extractor and extends over a full depth of the canister 10b.
  • a portion of the means 18b located below the fan box 28b and a fan 14b is ramped to deflect vertically upward a part of the airflow 16b coming from the front, while a front portion of the means 18b is horizontal.
  • the means 18b defines lateral, vertically opening suction openings 32b, 32'b, which leave a portion of the air flow 16b penetrating from the lateral areas of the vapor collecting screen 10b unhindered, while the means 18b forms one of a middle one Area of the Wrasenfangles 10b penetrating portion of the air flow 16b brakes ( Figure 6).
  • the means 18b For braking the air flow 16b, the means 18b has circular openings 20b-20 "b, the openings 20b-20” b having different sizes or diameters in different areas 22b-26b of the means 18b.
  • the diameters also vary within the regions 22b-26b and are generally smaller in a rear region 22b of the means 18b than in a front region 26b.
  • the size of the openings 20b-20 "b decreases from the center of the means 18b towards its side edges ( Figure 7).
  • suction ports 32b, 32'b are closed by vertical plates, the sheets then may also have openings through which a controllable portion of the air flow 16b can penetrate.
  • FIGS. 8-11 show a kitchen extractor with an extractable housing part 34c, which laterally surrounds a housing base 42c, on which a fan box 28c is held.
  • the housing part 34c can be pushed over the housing base body 42c.
  • the kitchen extractor device comprises means 18c arranged between a filter element 12c and a fan 14c in an air flow 16c for homogenizing a flow velocity of the air flow 16c.
  • the means 18c comprises a first element 36c fixedly connected to the housing part 34c and a second element 38c firmly connected to the housing main body 42c.
  • the member 36c slides under the inclined member 38c of the means 18c when the housing part 34c is pushed by an operator in a direction 30c.
  • a distribution of openings 20c-20 "c of the means 18c is identical to the distribution of the openings
  • Figures 12-14 show another alternative kitchen extractor with a means 18d for homogenizing an air flow 16d subdivided into three areas 22d-26d (Figure 14).
  • a first region 22d is disposed below a fan box 28d and provided with low areal density openings 20d.
  • a second region 24d extends from the first region 22d to a front edge of a Vapor extraction screen 10d of the kitchen extractor.
  • a third portion 26d is composed of two discontinuous triangular portions which respectively adjoin a side edge of the second portion 24d and widen in the direction 3Od of the front edge of the vapor trapping screen 10d, so that the front edge means 18d is almost the width of the vapor trapping screen Has 10d.
  • the triangular parts of the third portion 26d are inclined obliquely upward toward a side edge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne un dispositif d'évacuation de fumée pour la cuisine, comprenant au moins un élément filtre (12a, 12d) disposé dans un écran capteur de fumées (10a- 10d), qui est disposé dans un écoulement d'air (16a- 16d) produit par une soufflante (14a-14d). L'objectif de l'invention est de créer un dispositif d'évacuation de fumées pour la cuisine comprenant un profil homogène de l'écoulement d'air (16a- 16d), sans nuire à la capacité de réception de graisse ou à la surface filtre efficace de l'élément filtre (12a- 12d). A cet effet, un élément (18a- 18d) est disposé dans le sens de l'écoulement d'air (16a-16d) après l'élément filtre (12a-12d), permettant d'homogénéiser l'écoulement d'air (16a- 16d).
EP05850432A 2005-01-31 2005-12-02 Dispositif d'evacuation de fumees pour la cuisine Withdrawn EP1846699A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510004479 DE102005004479A1 (de) 2005-01-31 2005-01-31 Küchendunstabzugsvorrichtung
PCT/EP2005/056435 WO2006081884A1 (fr) 2005-01-31 2005-12-02 Dispositif d'evacuation de fumees pour la cuisine

Publications (1)

Publication Number Publication Date
EP1846699A1 true EP1846699A1 (fr) 2007-10-24

Family

ID=35997796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05850432A Withdrawn EP1846699A1 (fr) 2005-01-31 2005-12-02 Dispositif d'evacuation de fumees pour la cuisine

Country Status (3)

Country Link
EP (1) EP1846699A1 (fr)
DE (1) DE102005004479A1 (fr)
WO (1) WO2006081884A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009045787A1 (de) * 2009-10-19 2011-05-12 BSH Bosch und Siemens Hausgeräte GmbH Gargerätefiltereinheit
DE102009055077A1 (de) * 2009-12-21 2011-06-22 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Lüfterkasten für Dunstabzugshaube
EP2966363B1 (fr) * 2014-07-08 2016-10-19 Elica S.p.A. Hotte filtrante

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1987333U (de) * 1968-06-12 Collo Rheincollodium Köln G.m.b.H. Werk Hersei, 5304 Hersei Dunstabzugshaube
US4153044A (en) * 1978-01-23 1979-05-08 Nett Louis A Backshelf ventilating hood
IT1222139B (it) * 1987-07-27 1990-09-05 Elica Spa Cappa di aspirazione fumi,particolarmente per cucine domestiche,a larga aerea di captazione
DE8805325U1 (fr) * 1988-04-21 1988-07-07 Buercher-Siegrist, Rosmarie, 8029 Sauerlach, De
DE4207022A1 (de) * 1992-03-06 1993-09-09 Rolf Hertfelder Elektrostatische filtereinrichtung fuer dunstabzugshauben
DE10016295A1 (de) * 2000-03-31 2001-10-04 Bsh Bosch Siemens Hausgeraete Dunstabzugshaube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006081884A1 *

Also Published As

Publication number Publication date
DE102005004479A1 (de) 2006-08-10
WO2006081884A1 (fr) 2006-08-10

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