EP0879387B1 - Abzugshaube - Google Patents

Abzugshaube Download PDF

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Publication number
EP0879387B1
EP0879387B1 EP97902724A EP97902724A EP0879387B1 EP 0879387 B1 EP0879387 B1 EP 0879387B1 EP 97902724 A EP97902724 A EP 97902724A EP 97902724 A EP97902724 A EP 97902724A EP 0879387 B1 EP0879387 B1 EP 0879387B1
Authority
EP
European Patent Office
Prior art keywords
extractor hood
valve
fan
control means
extractor
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.)
Expired - Lifetime
Application number
EP97902724A
Other languages
English (en)
French (fr)
Other versions
EP0879387A1 (de
Inventor
Paulus Simon Wilhelmus Jansen
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.)
Je Stork Ventilatoren Bv
Original Assignee
Je Stork Ventilatoren Bv
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 Je Stork Ventilatoren Bv filed Critical Je Stork Ventilatoren Bv
Publication of EP0879387A1 publication Critical patent/EP0879387A1/de
Application granted granted Critical
Publication of EP0879387B1 publication Critical patent/EP0879387B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit

Definitions

  • the invention related to the field of extractor hoods.
  • Such extractor hoods are used on a large scale in houses or other accommodation having a ventilation system, wherein a fan which is placed centrally and at least at a distance from suction openings through which air, vapour etc. are draught off from a space for ventilating.
  • the present invention provides an extractor hood comprising:
  • the control means are able to control the valve between an open and closed position.
  • the closed position corresponds with a rest position
  • the fully open position corresponds with a position in which the extractor hood is fully operational, for instance during cooking, while the position with limited passage represents a position with a comparatively low level of extraction.
  • the extractor hood comprises a control button which is coupled to control means which can simultaneously control two functions.
  • the one function relates to switch-on, switch-off or placing in a desired intermediate position of the extractor fan placed at a distance and driven by an electric motor.
  • the other function relates to closing of the said outlet by means of a valve during non-use of the extractor hood. Possible fan noise can thereby be prevented from penetrating into the relevant work area via the outlet opening.
  • the relevant valve can be opened preferably in direct mechanical manner by operating the control button, optionally combined with switch-on or setting of the fan at an increased rotation speed.
  • the extractor hood preferably has the special feature that at least the components coming into contact with air or vapour for extracting are heat-resistant, fire-resistant and/or flame-extinguishing.
  • a particular development of this principle has the special feature that components consist substantially of polypropylene (PP) filled with talcum.
  • Another embodiment has the special feature that components consist substantially of metal. This latter embodiment can have the feature that the metal is stainless steel.
  • the extractor hood can have the special feature that components consist substantially of a mixture of polycarbonate and ABS. This variant relates particularly to the front of the extractor hood and the control buttons arranged thereon.
  • the extractor hood preferably has the special feature that the control means are of mechanical type. Such an embodiment can be very inexpensive and reliable.
  • a preferred embodiment has the feature that the valve body is carried by a resilient support arm and/or formed integrally therewith, this support arm being operated by the control means.
  • the support arm can for instance be a plastic strip. Such a strip is naturally resilient and flexible in transverse direction of its main plane.
  • the control means can for instance comprise a manually operated turning knob which co-acts with the support arm by means of an eccentric cam.
  • valve body presses under bias against the valve seat in the closed position of the valve is ensured with an embodiment in which the valve body presses under bias against the valve seat in the closed position of the valve.
  • this variant can be embodied in very simple and reliable manner.
  • the extractor hood preferably has the feature that the valve seat and the valve have annular co-acting contact surfaces.
  • valve seat is placed downstream of the valve body and has a form narrowing in the flow direction.
  • the transmission of sound coming from a remotely placed fan is particularly found to be negligible.
  • valve has a contact surface with the shape of a part of a sphere has the great advantage that this structure is to a large degree independent of the actual position of the spherical contact surface. This allows large manufacturing tolerances while still retaining good operation of the valve.
  • a preferred embodiment has the special feature that the width of each vent amounts to (15 ⁇ 5) mm.
  • the extractor hood is preferably embodied such that all vents have substantially the same width.
  • An embodiment in which the plate is removable has the advantage that the plate can be cleaned easily and that the interior of the housing, in particular the walls of the hollow space bounded thereby, are easily accessible for cleaning.
  • a preferred embodiment has the special feature that the control means are adapted to control the valve and the drive of the fan.
  • operation of the lighting means preferably takes place with a separate button.
  • Extractor hood 1 comprises a housing 2 provided with a coating, for instance an enamel layer, and a stainless steel bottom plate 3 which together with side walls 4, 5 and the front wall 6 of the housing bounds the respective vents 7, 8, 9. Continuous holes 10, 11, are arranged in bottom plate 3 for passage of light coming from lamps.
  • a central control knob 12 which is rotatable and thus co-acts mechanically via an eccentric transmission 13 (see figure 5) with a convex valve plate 14 which can co-act sealingly in the manner shown in figure 5 with a valve seat 15 which widens in downward direction and which co-acts sealingly with a discharge pipe end part 16.
  • a pushbutton 24 operates the lamps.
  • the holes 10, 11 are covered with transparent windows 22, 23.
  • Figure 3 shows a possible dimensioning of bottom plate 3.
  • Figure 2 shows this bottom plate 3 in perspective view. It will be apparent from this view that plate 3 has at least partially a substantially prismatic form, i.e. has the same shape in any cross section. At the front and rear however, the plate has downward directed edges 20 and 21 respectively.
  • Figure 4 shows schematically with arrows the flow of air drawn in via pipe end part 16. This passes through the three mutually connecting vents 7, 8, 9, moves through the hollow space 17 in housing 2 and leaves this hollow space via pipe end part 16. Control means and lamps are accommodated in an inner housing 18. Plate 3 is suspended in hooking manner with its rear edge 25 from the rear side of housing 2. At the front side it is fixed to the housing with screwable fastening bolts 26, 27.
  • the extractor hood shown in the figures does not comprise a fan. This is arranged at a distance in an outlet conduit coupled to pipe end part 16.
  • the operation of the fan can be stationary, for instance in the case where the fan also serves for ventilation of a house, in which case the extractor hood is included in the extraction circuits or removed therefrom by operating the valve 14, 15.
  • an electrical switch 28 controllable by knob 12 the remotely placed fan can be switched on and, if desired, be placed in different positions corresponding to different flow rates.
  • the fan is either switched off or is set to relatively low operation while valve 14, 15 is closed. In an intermediate position the fan is placed in operative position or in a state of increased excitation and valve 14, 15 is closed. The fan then draws off the normal quantity of air via circuits other than via the extractor hood.
  • the fan In the cooking position the fan is in its highest state of excitation and valve 14, 15 is opened.
  • the fan hereby draws off a relatively large amount of air, a large part of which comes from the extractor hood and a normal quantity of air from other inlet points.

Claims (20)

  1. Abzugshaube, aufweisend:
    ein Gehäuse (1) zum Befestigen an einer Gebäudestruktur, zum Beispiel einer Wand, an einer ausgewählten Position mittels Befestigungsmitteln, wobei das Gehäuse einen Raum (17) umgrenzt,
    einen mit dem Raum (17) zu verbindenden Auslass (16) zum Abziehen von Luft, Dampf und Ähnlichem, was mittels eines Ventilators über einen Einlass in den Raum eintritt, und
    eine Platte (3), die diesen Raum an der Unterseite begrenzt und zumindest einen nach unten konvexen Übergangsbereich nahe der Seiten davon aufweist, wobei die Platte zusammen mit den Seitenwänden des Gehäuses eine Anzahl von Öffnungen (7, 8, 9) umgrenzt, die den Einlass formen, dadurch gekennzeichnet, dass ein Ventil mit festem Ventilsitz (19) und einem Ventilkörper (14) mittels Steuermitteln zwischen einer Öffnungs- und einer Schließposition verlagerbar ist.
  2. Abzugshaube gemäß Anspruch 1, wobei der Ventilator im Auslassrohr in einem Abstand von der Abzugshaube aufgenommen ist.
  3. Abzugshaube gemäß Anspruch 1 oder 2, wobei die Öffnungen miteinander verbunden sind.
  4. Abzugshaube gemäß Anspruch 1, wobei zumindest jene Komponenten, die mit Abzugs-Luft oder Abzugs-Dampf in Kontakt kommen, hitzebeständig, feuerbeständig und/oder flammlöschend sind.
  5. Abzugshaube gemäß Anspruch 4, wobei die Komponenten im Wesentlichen aus mit Talkum gefülltem Polypropylen (PP) bestehen.
  6. Abzugshaube gemäß Anspruch 4, wobei die Komponenten im Wesentlichen aus Metall bestehen.
  7. Abzugshaube gemäß Anspruch 6, wobei das Metall rostfreier Stahl ist.
  8. Abzugshaube gemäß Anspruch 1, wobei die Komponenten im Wesentlichen aus einem Gemisch von Polykarbonat und ABS bestehen.
  9. Abzugshaube gemäß Anspruch 1, wobei die Steuermittel (13) mechanischer Art sind.
  10. Abzugshaube gemäß Anspruch 9, wobei der Ventilkörper (14) mittels eines elastischen Tragarms (13) getragen ist und/oder einstückig damit geformt ist, wobei dieser Tragarm mittels der Steuermittel betätigt wird.
  11. Abzugshaube gemäß Anspruch 1 oder 9, wobei der Ventilkörper (14) in der Schließposition des Ventils unter Vorspannung gegen den Ventilsitz (15) drückt.
  12. Abzugshaube gemäß Anspruch 9, wobei der Ventilsitz und das Ventil ringförmige zusammenwirkende Kontaktflächen aufweisen.
  13. Abzugshaube gemäß Anspruch 12, wobei der Ventilsitz strömungsabwärts vom Ventilkörper positioniert ist und eine sich in der Strömungsrichtung verengende Form aufweist.
  14. Abzugshaube gemäß Anspruch 12, wobei das Ventil eine Kontaktfläche mit der Form eines Kugelausschnittes aufweist.
  15. Abzugshaube gemäß Anspruch 1, wobei die Weite jeder Öffnung (7, 8, 9) 15 mm ± 10 mm beträgt.
  16. Abzugshaube gemäß Anspruch 15, wobei die Weite jeder Öffnung 15 mm ± 5 mm beträgt.
  17. Abzugshaube gemäß Anspruch 1, wobei alle Öffnungen im Wesentlichen die gleiche Weite aufweisen.
  18. Abzugshaube gemäß Anspruch 1, wobei die Platte (3) demontierbar ist.
  19. Abzugshaube gemäß Anspruch 1, wobei die Steuermittel angepasst sind, um das Ventil und den Ventilatorantrieb zu steuern.
  20. Abzugshaube gemäß Anspruch 19, wobei die Steuermittel angepasst sind, um ein Ventil in einer vorbestimmten Position geschlossen zu halten, und zur wahlweise begrenzten Lüftererregung, sodass er für eine andere Abzugs-Zirkulation wirksam sein kann als über die Abzugshaube.
EP97902724A 1996-02-05 1997-02-05 Abzugshaube Expired - Lifetime EP0879387B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1002244A NL1002244C1 (nl) 1996-02-05 1996-02-05 Wasemkap.
NL1002244 1996-02-05
PCT/NL1997/000035 WO1997028405A1 (en) 1996-02-05 1997-02-05 Extractor hood

Publications (2)

Publication Number Publication Date
EP0879387A1 EP0879387A1 (de) 1998-11-25
EP0879387B1 true EP0879387B1 (de) 2002-10-09

Family

ID=19762248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97902724A Expired - Lifetime EP0879387B1 (de) 1996-02-05 1997-02-05 Abzugshaube

Country Status (4)

Country Link
EP (1) EP0879387B1 (de)
AU (1) AU1674197A (de)
NL (1) NL1002244C1 (de)
WO (1) WO1997028405A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102183056A (zh) * 2011-05-24 2011-09-14 西安建筑科技大学 一种气流全封闭式排烟罩

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10033031A1 (de) * 2000-07-07 2002-01-31 Schako Metallwarenfabrik Anlage zum Klimatisieren von Räumen
DE10106306C1 (de) * 2001-02-12 2002-07-25 Bsh Bosch Siemens Hausgeraete Haushaltsgerät
HK1053236A2 (en) * 2003-07-04 2003-09-26 Cypress Air Technologies Ltd Dual motor kitchen range hood with perimeter air inlet
CN107631336A (zh) * 2017-10-17 2018-01-26 中山市百事特电器有限公司 一种新型吸油烟机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2312306A1 (fr) * 1975-05-28 1976-12-24 Madeira Da Silva Jose Procede et dispositif destines a ameliorer l'efficacite des hottes de captation de fumees et/ou de gaz
GB1591451A (en) * 1976-11-11 1981-06-24 Kemtron Properties Pty Ltd Extractor vents
US4939986A (en) * 1989-03-06 1990-07-10 John C. Garvin, Jr. & Harold W. Hilton Exhaust ventilator
US5205783A (en) * 1991-08-22 1993-04-27 Accu*Aire Systems, Inc. Air flow control equipment in chemical laboratory buildings
US5448987A (en) * 1994-10-24 1995-09-12 Jang; Sun-Sing Kitchen smoke exhauster

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102183056A (zh) * 2011-05-24 2011-09-14 西安建筑科技大学 一种气流全封闭式排烟罩
CN102183056B (zh) * 2011-05-24 2013-05-08 西安建筑科技大学 一种气流全封闭式排烟罩

Also Published As

Publication number Publication date
AU1674197A (en) 1997-08-22
WO1997028405A1 (en) 1997-08-07
NL1002244C1 (nl) 1997-08-06
EP0879387A1 (de) 1998-11-25

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