EP0033547A1 - Branchement de sortie pour hotte d'évacuation - Google Patents

Branchement de sortie pour hotte d'évacuation Download PDF

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Publication number
EP0033547A1
EP0033547A1 EP81100790A EP81100790A EP0033547A1 EP 0033547 A1 EP0033547 A1 EP 0033547A1 EP 81100790 A EP81100790 A EP 81100790A EP 81100790 A EP81100790 A EP 81100790A EP 0033547 A1 EP0033547 A1 EP 0033547A1
Authority
EP
European Patent Office
Prior art keywords
connection
air connection
extractor hood
output switch
fresh air
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Withdrawn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
EP81100790A
Other languages
German (de)
English (en)
Inventor
Maximilian Homeier
Hannelore Röhl-Hager
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.)
Georg Rohl Lichttechnische Spezialfabrik Apparate- und Geratebau & Co KG GmbH
Original Assignee
Georg Rohl Lichttechnische Spezialfabrik Apparate- und Geratebau & Co KG 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 Georg Rohl Lichttechnische Spezialfabrik Apparate- und Geratebau & Co KG GmbH filed Critical Georg Rohl Lichttechnische Spezialfabrik Apparate- und Geratebau & Co KG GmbH
Publication of EP0033547A1 publication Critical patent/EP0033547A1/fr
Withdrawn legal-status Critical Current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

Definitions

  • the invention has for its object to make further use of the fan of the extractor hood.
  • the invention is based on the new principle of making the fan of the extractor hood usable for fresh air conditioning of the living area or the kitchen in summer operation. If, in summer, the exhaust pipe of the extractor hood is connected to the exhaust connection of the outlet switch and thus the free atmosphere, the fan of the extractor hood constantly sucks in air from the kitchen area, so that there is a certain negative pressure. This vacuum draws fresh air from the fresh air connection of the exit switch into the living room or kitchen area via the recirculated air connection of the exit switch. If necessary, this fresh air supply can also be supported by means of an auxiliary fan, which is expediently installed in the pipe section between the outlet switch and the free atmosphere by way of the fresh air connection. It would then be outside the circulating air circuit in winter operation.
  • the invention In summer operation, the invention not only improves the supply of fresh air to the living room or kitchen area without the need for additional ventilation, but also improves the operating conditions of the extractor hood itself.
  • the blower motor no longer needs to work against a significant negative pressure. As a result, the required speed of the blower is lower and thus its noise level is reduced while the output remains the same.
  • a more favorable flow profile of the fume hood is developing within the kitchen area. It becomes an auxiliary air train for transporting the vapors into the extractor hood and thus also increases the efficiency of the vapor extractor. With a favorable arrangement of the connection openings of the circulating air circuit in the kitchen area, an optimal flow profile in the kitchen to the extractor hood can be achieved, which includes much larger areas of the kitchen volume than previously in the transport train to the extractor hood.
  • This new concept according to the invention can be obtained by simply redesigning the outlet switch from a three-way valve to a four-way valve and using an additional fresh air line and thus with relatively little structural effort.
  • the invention includes the possibility that in summer operation the connection of the connection of the outlet switch to the extractor hood with the exhaust air connection is hermetically sealed against the connection of the fresh air connection with the circulating air connection and also in winter operation when the connection of the outlet switch to the extractor hood is connected to the circulating air connection Exhaust air connection as well the fresh air connection is 100% complete.
  • connection pipe of the extractor hood is connected to the circulating air circuit, you can also mix some fresh air into the circulating air circuit from the fresh air connection and gradually improve both the fresh air percentage in the living area or kitchen area and, in the sense described above, influence the extraction characteristics of the extractor hood to take. This is encouraged if a short circuit is also created between the connecting pipe of the extractor hood and the exhaust air connection and a certain proportion of the exhaust air is blown off even in winter operation.
  • Claim 3 offers the advantage that no further actuator is required for the fourth connection of the output switch provided according to the invention.
  • connection to the extractor hood, the exhaust air connection and the recirculation air connection is already designed as a T-piece, the exhaust air connection and recirculation air connection being aligned with one another.
  • the fresh air connection is preferably expediently arranged on the side of the connecting switch which is opposite the connection to the extractor hood.
  • side connections The type of connection according to claim 4, however, promotes the possibility of a simple construction of the output switch.
  • the design of the exit switch can be simplified in the arrangement according to claim 5, in particular in the design according to claim 3.
  • outlet switch It is customary to connect a generic outlet switch to the extractor hood.
  • the outlet switch is preferably integrated in the extractor hood.
  • End position catches are preferably formed on the actuator.
  • the actuator is designed as a rotary slide valve, which, apart from its bearing areas, can consist of a simple sheet of sheet metal or plastic
  • the end position detents can each be designed as an integrally formed, push-in latching cam which interacts with a corresponding counter-latching surface on the housing of the exit switch.
  • the structural complexity of a four-way exit switch according to the invention is hardly greater than that of a known generic Three-way exit switch. It is therefore justifiable to use an output switch according to the invention also in the known three-way operation and to simply lay the fresh air connection dead.
  • the basic shape of the outlet switch can leave the fresh air connector closed, for example if a closed connector is not opened, and then opened for the application according to the invention.
  • the outlet switch 2 of an extractor hood (see FIGS. 4 and 5a and 5b) shown in FIGS.
  • the connections are controlled by an actuator 12. It is a four-way valve with two positions.
  • FIGS. 1a to 1c A preferred construction of such an output switch, on which the drawing construction of FIGS. 1a to 1c is also based, will be described in detail later with reference to FIGS. 2a and 2b or the alternative from FIG. 3.
  • connection 4 to the extractor hood is generally permanently connected to it.
  • further sections of the exhaust air line 14, the recirculation air line 16 and possibly a fresh air line 18 are shown broken off.
  • the fresh air line 18 is shown here only as a flexible line, for example, while the exhaust air line and recirculated air line are shown as rigid pipes in the area shown.
  • the type of cables used depends on the installation conditions. All connections are usually plug connections according to the most common embodiment.
  • connection 4 to the extractor hood with the Exhaust air connection 6 connected and blocked against the other connections.
  • the fresh air port 10 is provided as a dead-gels g ter bag spout.
  • the connection 4 In the second position of the output switch, the connection 4 is connected to the circulating air connection 8, while the connection 4 is then closed by the exhaust air connection 6.
  • Fig. 1a thus illustrates the operation of the Ausgan g sweiche in a conventional three-way arrangement.
  • the exhaust air connection 6 and the fresh air connection 10 are at least predominantly closed by the actuator 12 in winter operation.
  • the outlet switch then has the same function as the outlet switches according to FIG. 1a in three-way operating mode in winter mode, if there is no residual short-circuit at the fresh air connection and exhaust air connection.
  • connection of the connection 4 to the extractor hood with the exhaust air connection 6 corresponds to the operating mode according to FIG. 1a on the exhaust air side.
  • the fresh air connection 8 is additionally connected to the fourth connection, the fresh air connection 10, in addition to the intake of fresh air from the fresh air line 18 via the Ge blower of the extractor hood used in the kitchen area.
  • a short circuit between the two flow branches is less expedient, although it cannot be ruled out in special cases.
  • connection 4 to the extractor hood is designed here as a round standard connector for a plug connection.
  • the housing of the exit switch protruding lugs 20 are formed as a slide lock of the connecting piece of the extractor hood.
  • exhaust air and recirculation air connections 6 and 8 which are also designed as plug connections, have an essentially rectangular outlet cross section; others, e.g. round exit cross-sections are also possible.
  • the fresh air connection 10 is also rectangular in these exemplary embodiments.
  • the fresh air connection 10 has a substantially smaller cross-section than the connection 4 to the extractor hood and is offset laterally with respect to its axis in the direction of the circulating air connection 8 on the side of the outlet switch 2 opposite the connection 4.
  • the actuator 12 is designed as a circular arc-shaped film 22, which overlaps extends a central angle of less than 45 ° and is spanned at its two ends by two bearing segments 24 corresponding to the circular arc.
  • the bearing segments 24 are rotatably supported on two shaft ends 26 in the housing 28 of the exit switch. As shown, the bearing segment is clamped between the head of a screw and a nut, the screw shaft serving as a bearing stub shaft 26.
  • One of these stub axles is mounted herm-tight to the outside within two overlapping housing parts, while the other is extended through the housing outwards to a manual control button 30, which, however, also has a coupling part 32 for a possible servo drive or remote control drive.
  • the film 22, which can be a sheet metal film or a plastic film, is rectangular when projected onto the base of the bearing segments 24. Accordingly, the inner cross section of the output switch 2 is designed.
  • the two ends 34 and 36 of the actuator 12 alternatively come to rest on the contact surfaces 38 or 40 in the two operating positions of the exit switch. Winter operation is shown in which the end 34 rests on the contact surface 38.
  • the switch to the other operating position is indicated by arrow 42.
  • the end 36 of the actuator 12 facing away from the contact surface 38 is in contact with and seals under the side of the circulating air connection 8 adjacent to the fresh air connection the fresh air seal at least predominantly in the circulating air circuit.
  • the end 34 of the actuator 32 is without a sealing function, but purely as a guide surface for the exhaust air, under the housing side of the exhaust air connection 6 close to the fresh air connection 10.
  • Bypass channels 48 distributed over the length of the control path are formed between the fresh air connection 10 and the circulating air connection 8 in the area of the housing 28 of the outlet switch 2, which is controlled by the actuator 12.
  • Ent Talking bypass channels 49 are formed in the housing 28 on the mounting surfaces 38 between the port 4 and the exhaust port 6. If necessary, it is also possible to provide only a single bypass channel. This makes it possible to form the ends 44 and 46 of the actuator 12 in a straight line.
  • FIG. 3 serve to exemplify some possible modifications of the described construction of the output switch. These modifications only need to be provided in part. Unless otherwise stated with regard to FIG. 3, the rest of FIG. 3 corresponds to the embodiment of FIG. 2a.
  • FIG. 3 has different cross sections of the connections compared to FIG. 2a. 2a, the connections 6 and 8 have a smaller internal cross section than the connection 4, according to FIG. 3 the internal cross sections are essentially the same, without prejudice to the possible different geometric configuration. In both cases, however, as shown; the fresh air connection 10 remain dimensioned smaller.
  • FIG. 2a the possible operation according to FIG. 1a is illustrated in FIG. 2a in that the fresh air connector 10 is provided with an integral end wall 50 and thus serves as a functionless bag connector.
  • this end wall 50 is not provided in FIG. 3, but the fresh air connector 10 is open and functional.
  • the fresh air connector 10 can also be shown open in FIG. 2a. The same applies to the following differences.
  • the contact surface 38 and the contact surface 40 are each inclined outward and backward with respect to the axis of the connector 4, while the corresponding contact surfaces 38a and 40a in FIG. 3 run radially to the axis of the connector 4.
  • the arrangement according to FIG. 2a is preferred, while with larger cross-sections according to FIG. 3 one can also work with other inclinations, such as the radial orientation to the connecting piece 4, even if a hermetic seal in the respective end position of the actuator 12 is desired.
  • the extractor hood consists in each case of a hood-shaped housing 54a or 54b, a grease filter 56a or 56b which closes the hood-shaped housing at the end, the actual extraction device 58a or 58b, in which the extraction fan is integrated and which is otherwise constructed in a conventional manner, at least a rigid or hose-shaped connecting pipe 60a or 60b of the extractor hood to the outlet switch 2 and expediently in the built-in version at least one recirculation line 16.
  • the output switch 2 is placed directly on the extractor hood 52a outside the same. A remote connection can also be considered. 5a and 5b, on the other hand, the output switch 2 is integrated in the extractor hood 52b.
  • FIG. 5a and 5b A further variant of Fig. 5a and 5b is that two A bzugsetti 58b are arranged in the same exhaust hood 52b in parallel circuit, which is assigned to an output filter 2 within the hood 52b. It can be seen that the actuators 12 of the two trigger switches 2 are coupled by a coupling 62 and can be adjusted in their two operating positions by means of the Bowden cable 64, for example. A corresponding Bowden cable 64 is shown in FIG. 4. Another manual actuation, possibly also a servo actuation, can take the place of the Bowden cable.
  • Fig. 4 is a horizontally hanging arrangement, e.g. for installation in a kitchen furniture wall, shown, while the extractor hood 52b according to FIGS. 5a and 5b is suspended directly from a side wall 66.
  • the exhaust air connection 6 can be routed in a conventional manner through an exhaust air line through the masonry to the outside. This is done directly in FIG. 5 a, in that the exhaust air connection 6 opens directly into a wall duct 68.
  • This can be designed as a separate bushing and can be provided on the outside with an external blind 70.
  • the circulating air can exit directly from the hood-shaped housing 54a or 54b, as is illustrated in FIG. 4 by the flow arrows 72 of the circulating air.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
EP81100790A 1980-02-04 1981-02-04 Branchement de sortie pour hotte d'évacuation Withdrawn EP0033547A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803003930 DE3003930A1 (de) 1980-02-04 1980-02-04 Ausgangsweiche einer dunstabzugshaube
DE3003930 1980-02-04

Publications (1)

Publication Number Publication Date
EP0033547A1 true EP0033547A1 (fr) 1981-08-12

Family

ID=6093653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100790A Withdrawn EP0033547A1 (fr) 1980-02-04 1981-02-04 Branchement de sortie pour hotte d'évacuation

Country Status (2)

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EP (1) EP0033547A1 (fr)
DE (1) DE3003930A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4682580A (en) * 1985-03-12 1987-07-28 Sharp Kabushiki Kaisha Exhaust system for a cooking apparatus
EP0541054A1 (fr) * 1991-11-05 1993-05-12 bulthaup GmbH & Co. Küchensysteme Elément de sortie ou élément de raccordement pour une hotte d'évacuation de fumée
WO2009138332A3 (fr) * 2008-05-13 2010-04-08 BSH Bosch und Siemens Hausgeräte GmbH Déflecteur d'air et procédé de montage d'un déflecteur d'air
EP2487424A1 (fr) * 2011-02-11 2012-08-15 Miele & Cie. KG Hotte aspirante pour un four, une plaque de cuisson ou analogue
EP3667176A1 (fr) * 2018-12-11 2020-06-17 Franke Futurum AB Hotte d'extraction de fumée, procédé de fonctionnement d'une hotte d'extraction de fumée

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625975C2 (de) * 1986-07-31 1997-07-10 Lubbe Karlheinz Dipl Ing Umschaltvorrichtung für den wahlweisen Umluft- oder Abluftbetrieb einer Dunstabzugshaube

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800689A (en) * 1972-07-24 1974-04-02 L Brown Building ventilating system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7611903U1 (de) * 1975-12-31 1976-12-09 Rainox S.P.A., Lentate Sul Seveso, Mailand (Italien) Abzugshaube fuer kuechen
DE7806544U1 (de) * 1978-03-03 1978-11-23 Ttl Tuer- Und Tor-Luftschleier Gmbh, 7065 Winterbach Kuechen-dunstabzugshaube
DE7807204U1 (de) * 1978-03-09 1979-07-26 Naporra, Lothar, 8403 Bad Abbach Anschlussvorrichtung fuer die ableitung von kuechenabluft
DE2810318A1 (de) * 1978-03-09 1979-09-20 Lothar Naporra Dunstabzugsvorrichtung fuer kuechen, sowie umlenkstueck, einbaustueck und mauerkasten hierfuer
DE7912952U1 (de) * 1979-05-04 1979-11-22 Georg Roehl Lichttechnische Spezialfabrik Apparate- Und Geraetebau Gmbh & Co Kg, 8400 Regensburg Anschlussrohr einer dunstabzugshaube

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800689A (en) * 1972-07-24 1974-04-02 L Brown Building ventilating system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4682580A (en) * 1985-03-12 1987-07-28 Sharp Kabushiki Kaisha Exhaust system for a cooking apparatus
EP0541054A1 (fr) * 1991-11-05 1993-05-12 bulthaup GmbH & Co. Küchensysteme Elément de sortie ou élément de raccordement pour une hotte d'évacuation de fumée
WO2009138332A3 (fr) * 2008-05-13 2010-04-08 BSH Bosch und Siemens Hausgeräte GmbH Déflecteur d'air et procédé de montage d'un déflecteur d'air
US20120094589A1 (en) * 2008-05-13 2012-04-19 Bsh Bosch Und Siemens Hausgerate Gmbh Air deflector and method for mounting an air deflector
EP2487424A1 (fr) * 2011-02-11 2012-08-15 Miele & Cie. KG Hotte aspirante pour un four, une plaque de cuisson ou analogue
EP3667176A1 (fr) * 2018-12-11 2020-06-17 Franke Futurum AB Hotte d'extraction de fumée, procédé de fonctionnement d'une hotte d'extraction de fumée

Also Published As

Publication number Publication date
DE3003930A1 (de) 1981-08-13

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE DE FR GB LU NL

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Effective date: 19811026

STAA Information on the status of an ep patent application or granted ep patent

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Effective date: 19840126

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HOMEIER, MAXIMILIAN

Inventor name: ROEHL-HAGER, HANNELORE