EP3146269B1 - Montage, plaque de cuisson et appareil de cuisson à gaz - Google Patents

Montage, plaque de cuisson et appareil de cuisson à gaz Download PDF

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Publication number
EP3146269B1
EP3146269B1 EP15719763.3A EP15719763A EP3146269B1 EP 3146269 B1 EP3146269 B1 EP 3146269B1 EP 15719763 A EP15719763 A EP 15719763A EP 3146269 B1 EP3146269 B1 EP 3146269B1
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EP
European Patent Office
Prior art keywords
gas
plate
throttle
valve
cooking appliance
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.)
Active
Application number
EP15719763.3A
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German (de)
English (en)
Other versions
EP3146269A1 (fr
Inventor
Christophe Cadeau
Jörn Naumann
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
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BSH Hausgeraete GmbH
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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3146269A1 publication Critical patent/EP3146269A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/007—Regulating fuel supply using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/18—Groups of two or more valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/24—Valve details

Definitions

  • the present invention relates to a gas fitting, a cooking station and a cooking appliance.
  • the cooking point is in particular a gas hob and the cooking appliance is in particular a gas cooking appliance.
  • Many gas fittings for cooking appliances are fittings in which a rotatable cone with transverse bores creates a variable outlet opening in the fitting housing with the aid of a handle shaft. Gas can flow to the gas burner of the cooking appliance via this outlet opening.
  • a reproducible Gasmengeneinstellitzkeit in such a cone fittings beat the ES 1 057 837 U , the US 7,174,913 B2 and the US 2005/0284519 A each before, to provide the grip shaft with a detent.
  • Gas fittings may include gas valve units.
  • conventional gas valve units have on-off valves that are individually electromagnetically actuated.
  • each of the open-close valves is assigned its own solenoid, which opens or closes the open-close valve.
  • the control of the electromagnets is done by an electronic control unit.
  • This electronic control unit processes the signals generated by an operator of the gas cooking appliance by means of an electric operating element and controls the electromagnets of the open-close valves accordingly.
  • Gas valve units of the type mentioned are, for example, in the publications EP 0 818 655 A2 and WO 2004/063629 A1 described. With such gas valve units, the gas volume flow supplied to a gas burner of a gas cooking appliance can be controlled in several stages. The gas volume flow in each stage has a reproducible size. The flow area of the gas valve unit as a whole, and consequently the size of the gas volume flow, are adjusted by opening or closing certain open-close valves of the gas valve unit, thereby releasing the gas flow through certain throttle openings.
  • the shows WO 2012/049049 A2 a gas valve unit for adjusting a gas flow supplied to a gas burner of a gas appliance, in particular a gas cooking appliance, wherein the gas valve unit has at least two open-close valves, wherein the at least two open-close valves by moving at least one body relative to the open-close Valves are mechanically actuated.
  • JP 2006/010243 A shows a gas valve for adjusting a gas burner of a cooking appliance supplied gas volume flow.
  • Other generic gas fittings are from the WO 2011/009793 A1 and the WO 2012/080054 A2 known.
  • an object of the present invention is to provide an improved gas valve.
  • the open-close valves are formed by the two mutually rotatable plates. Consequently, many components are saved in the present gas valve as compared to the conventional gas valve with dedicated on-off valves. This reduces the manufacturing costs. Furthermore, this makes it possible to save space. As a result, the gas valve can be made smaller. This in turn saves costs. Furthermore, the processing of the housing of the gas valve is thereby significantly simplified.
  • the gas fitting is in particular a gas control valve.
  • the gas valve is a stepped gas control valve or mechanical tap valve.
  • N in particular nine, exactly reproducible adjustment quantities, which are selected with the aid of the grip stem of the gas fitting can. With the nine possible settings, a good representability of the respective rotational angle position is ensured.
  • the driver plate is adapted to transmit the torque from the grip shaft of the gas fitting to the control plate.
  • the spring ring is adapted to press the control plate against the valve seats of the pressure plate for sealing.
  • valve seats are provided on the sealing composite plate.
  • the spring washer presses the control disk against the valve seats.
  • the recess above the respective valve opening can be arranged.
  • the respective valve opening and the control disk with the recess form a respective open-close valve.
  • Each open-close valve is assigned a defined gas volume flow.
  • Each formed on-off valve is a predetermined rotation angle of the Grip associated. In the respective rotation angle, a detent position can be assigned, whereby a visual, haptic and acoustic perception of detent steps is ensured at repeatedly precisely adjustable performance parameters.
  • the plurality N of the valve seats are arranged in a circle, wherein an angular pitch of circularly formed open-close valves may correspond to an angular pitch of the predetermined rotational angular positions of the handle shaft.
  • nine open-close valves are formed and provided at least nine rotational angle or detent positions.
  • a further rotational angle position can be provided in which none of the open-close valves are opened and thus the gas fitting is completely closed.
  • the angle division can be, for example, 36 °.
  • An angle of 36 ° is to be understood in particular as meaning an angle of 36 ° ⁇ 5 °, preferably of 36 ° ⁇ 3 °, more preferably of 36 ° ⁇ 1, more preferably of exactly 36 °.
  • control plate with the recess is designed such that the recess is arranged depending on the position of the handle shaft either via exactly one valve opening or over exactly two valve openings or via no valve opening.
  • the recess of the control plate is formed as a hole with an oval cross-section or as a slot.
  • valve seats are formed as a single annular sealing surfaces of an elastomer.
  • the respective throttle point is formed by at least one throttle opening, wherein the throttle openings in the throttle plate have different diameters.
  • the first to N-th throttle opening has a sequentially decreasing opening cross-section.
  • the plurality of mutually parallel plates include the cam plate, the control plate, the seal composite plate with the pressure plate and the first gas distribution plate, the throttle plate, a second gas distribution plate, and a cover plate.
  • the respective plate can also be referred to as a disc.
  • a hotplate in particular a gas hob, proposed with such a gas fitting.
  • the hotplate is for example a gas cooking appliance, preferably a household appliance.
  • a cooking appliance in particular a gas cooking appliance with such a cooking point and / or such a gas fitting is proposed.
  • the gas cooking appliance is in particular a household appliance, preferably a gas stove.
  • the Fig. 1 shows a gas valve 1, which is suitable for setting a gas burner 2 a cooking point 3, in particular a gas hob, a cooking appliance 4, in particular a gas cooking appliance, supplied gas flow rate.
  • the gas fitting 1 is preferably a, in particular stepped, gas control valve.
  • the cooking appliance 4 with the cooking zone 3 is shown.
  • the cooking appliance 4 may have the gas valve 1.
  • the gas fitting 1 has, as in Fig. 1 shown, a gas inlet 5, with which it is connected, for example, to a main gas line of the cooking appliance 4. At the gas inlet 5 is provided for combustion gas with a constant pressure, for example, 20 mbar or 50 mbar. At a gas outlet of the gas fitting 1, for example, a gas line leading to the gas burner 2 of the cooking device 4 is connected.
  • the gas fitting 1 has a plurality of plates 6 - 10 arranged parallel to one another.
  • the plates 6 - 12 may also be referred to as discs 6 - 12.
  • Fig. 3 a schematic exploded view of the plates 6 - 12 of the gas valve 1 according to Fig. 1 ,
  • the plates 6 - 12 of Fig. 3 are installed in the housing 15 of the gas fitting 1.
  • the parallel plates 6 - 12 of Fig. 3 comprise a driver plate 6, a control plate 7 with a recess 8, a sealing composite plate 9 with a pressure plate 9a (eg plastic) and a first gas distribution plate 9a (for example made of silicone), a throttle plate 10 (for example made of metal), a second gas distribution plate 11 and a cover plate 12.
  • the plates 6 - 12 are arranged in parallel one above the other and by means of screws (see Fig. 3 ) is fixed in the housing 15 of the gas fitting 1.
  • the driver plate 6 is coupled to the grip shaft 14 of the gas fitting 1.
  • the driver plate 6 has a support 16 (see Fig. 1 ), by means of which the driver plate 6 rests on a bottom of the housing 15.
  • the driver plate 6 is adapted to transmit torque from the handle shaft 14 to the control plate 7.
  • a spring ring 13 is arranged between the control plate 7 and the driver plate 6, .
  • the spring ring 13 is adapted to press the control plate 7 against the sealing composite plate 9 for sealing.
  • the control plate 7 is rotationally coupled to the driver 6.
  • the sealing composite plate 9 comprises a pressure plate 9a with N valve seats 21-29 (see Fig. 6 ) and corresponding valve openings. Further, the seal composite plate 9 includes a first gas distribution plate 9b. The first gas distribution plate 9b has gas distribution openings 17 facing the throttle plate 10.
  • the control plate 7 with the recess 8 is designed such that the recess 8 depending on the position of the handle shaft 14 either over exactly a valve opening (and thus just above a valve seat 21 - 29) or is arranged over exactly two valve openings or no valve opening.
  • the recess 8 of the control plate 7 is formed, for example, as a hole with an oval cross-section. Alternatively, the recess 8 may also be formed as a slot.
  • the valve seats 21-29 are formed as single annular sealing surfaces of silicone.
  • the pressure plate 9a made of plastic, in particular made of hard plastic.
  • the throttle plate 10 is arranged over the first gas distribution plate 9b.
  • the throttle plate 10 includes a plurality N of serially arranged throttle bodies 18.
  • the throttle bodies 18 are each formed by a throttle opening 18, for example.
  • the throttle openings 18 in the throttle plate 10 have different diameters to form different gas flow volumes.
  • the first to N-th throttle opening 18 in particular has a successively decreasing opening cross-section.
  • the respective throttle point 18 may also be formed by a plurality of throttle openings.
  • Fig. 4 shows a further schematic exploded view of the plates 6 - 12 of the embodiment of the gas valve 1 after Fig. 3 , In the Fig. 4 For reasons of clarity, the housing 15 of the gas fitting 1 is not shown. Fig. 4 further shows that the throttle plate 10 may include centering tabs 19 so that the throttle plate 10 is appropriately centered in the housing 15.
  • Fig. 5 shows a schematic view of an embodiment of the sealing composite plate 9 from above.
  • a view of the gasket composite plate 9 from below is in Fig. 6 shown.
  • the pressure plate 9a is shown at the bottom and the first gas distribution plate 9b at the top.
  • the gas distribution openings 17 to the throttle bodies 18 of the throttle plate 10th are clearly visible.
  • valve seat 21-29 for the open-close valves formed show the various positions of the gas fitting 1.
  • the valve seat 21 is provided for the full firing position of the gas fitting 1.
  • the position 29 is provided for the small fire position for the internal burner of the gas fitting 1.
  • FIG. 7 - 9 schematic views of an embodiment of the control plate 7 in different positions.
  • the control plate 7 is arranged such that its recess 8 between the positions 21 and 22 of the Fig. 6 lies.
  • the recess 8 is located directly above the position 21.
  • the control plate 7 in the Fig. 9 arranged such that its recess 8 is above the position 29, that is above the valve seat 29.
  • Fig. 10 is the gas valve 1 in the closed position. This is made clear that the recess 8 of the control plate 7 under any of the valve seats 21 - 25 is arranged.
  • the reference numeral 30 indicates the gas flow.
  • the recess 8 of the control plate 7 is disposed below the valve seat 25, which is assigned to the throttle body 35 with the largest opening cross-section. This corresponds to the full firing position of the gas fitting 1 and also corresponds to the position of the control plate 7 according to Fig. 8 , In the Fig. 11 is Accordingly, the control disk 7 relative to the valve seats 21 - 25 arranged so that no pressure drop is caused and the full firing position may result.
  • Fig. 12 bridges the recess 8 of the control disk 7 during the switching operation two switching elements (here the valve seats 24 and 25) and thus supplies two throttle bodies 34, 35.
  • the throttle bodies 31 - 35 may also be referred to as controls due to their effect.
  • the Fig. 12 already a flow reduction of the gas has occurred.
  • no detent is provided in this intermediate position.
  • Fig. 13 is the recess 8 of the control plate 7 directly under the valve seat 24 and provides only one control (throttle 34), which compared to the main control element (orifice 35) causes a much larger pressure loss.
  • Fig. 14 is the recess 8 of the control disk 7 directly below the left switching element (valve seat 21) and flows through the throttle bodies 31 - 35 with the greatest pressure loss, so that therefrom results in the small fire position.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)

Claims (11)

  1. Robinetterie de gaz (1) destinée à régler un débit volumique fourni à un brûleur de gaz d'un appareil de cuisson (4), notamment d'un appareil de cuisson à gaz, comportant plusieurs plaques disposées parallèlement l'une à l'autre (6-12), qui comprennent une plaque d'étranglement (10) comportant une pluralité N de points d'étranglement (18) disposés en série et deux plaques rotatives l'une par rapport à l'autre (7, 9) pour former une pluralité N de clapets d'ouverture / fermeture, dans lequel les deux plaques rotatives l'une par rapport à l'autre (7, 9) comprennent une plaque de commande (7) pouvant tourner à l'aide d'une tige de saisie (14), possédant un évidement (8) et une plaque de contact étanche (9) comportant une plaque de compression (9a) dotée de N sièges de clapet (21 - 29) et d'ouvertures de clapet correspondantes et une première plaque de distribution de gaz (9b) dotée d'ouvertures de distribution de gaz (17) exposées vers la plaque d'étranglement (10), caractérisée par une plaque d'entraînement (6) pouvant être couplée à la tige de saisie (14) et une bague élastique (13) disposée entre la plaque d'entraînement (6) et la plaque de commande (7).
  2. Robinetterie de gaz selon la revendication 1, caractérisée en ce que la plaque d'entraînement (6) est configurée pour transmettre le couple de rotation de la tige de saisie (14) de la robinetterie de gaz (1) à la plaque de commande (7).
  3. Robinetterie de gaz selon la revendication 1 ou 2, caractérisée en ce que la bague élastique (13) est configurée pour rendre étanche la plaque de commande (7) contre les sièges de clapet (21 - 29) de la plaque de compression (9a).
  4. Robinetterie de gaz selon l'une des revendications 1 à 3, caractérisée en ce que la plaque de commande (7) comportant l'évidement (8) est configurée de telle sorte que l'évidement (8) est disposé, en fonction de la position de la tige de saisie (14), exactement au-dessus d'une ouverture de clapet ou exactement au-dessus de deux ouvertures de clapet ou n'est pas disposé au-dessus d'une quelconque ouverture de clapet.
  5. Robinetterie de gaz selon la revendication 4, caractérisée en ce que l'évidement (8) de la plaque de commande (7) est configuré sous forme d'un trou ayant une section transversale ovale ou sous forme d'un trou oblong.
  6. Robinetterie de gaz selon l'une des revendications 1 à 5, caractérisée en ce que les sièges de clapet (21 - 29) sont configurés sous forme de surfaces de bague d'étanchéité individuelles en élastomère.
  7. Robinetterie de gaz selon l'une des revendications 1 à 6, caractérisée en ce que le point d'étranglement (18) respectif est formé par au moins une ouverture d'étranglement (18), dans lequel les ouvertures d'étranglement (18) dans la plaque d'étranglement (10) ont des diamètres différents.
  8. Robinetterie de gaz selon la revendication 7, caractérisée en ce que la première jusqu'à la Nième ouvertures d'étranglement (18) ont une section transversale d'ouverture qui diminue tour à tour.
  9. Robinetterie de gaz selon l'une des revendications 1 à 8, caractérisée en ce que les plaques disposées parallèlement l'une à l'autre (6-12) comprennent la plaque d'entraînement (6), la plaque de commande (7), la plaque de contact étanche (9) comportant la plaque de compression (9a) et la première plaque de distribution de gaz (11), la plaque d'étranglement (10), une seconde plaque de distribution de gaz (11) et une plaque de recouvrement (12).
  10. Poste de cuisson, notamment poste de cuisson à gaz, comprenant une robinetterie de gaz (1) selon l'une des revendications 1 à 9.
  11. Appareil de cuisson (4), notamment appareil de cuisson à gaz, comprenant un poste de cuisson (3) selon la revendication 10 et/ou une robinetterie de gaz selon l'une des revendications 1 à 9.
EP15719763.3A 2014-05-22 2015-05-08 Montage, plaque de cuisson et appareil de cuisson à gaz Active EP3146269B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14290151 2014-05-22
PCT/EP2015/060234 WO2015176975A1 (fr) 2014-05-22 2015-05-08 Élément de robinetterie de gaz, zone de cuisson et dispositif de cuisson au gaz

Publications (2)

Publication Number Publication Date
EP3146269A1 EP3146269A1 (fr) 2017-03-29
EP3146269B1 true EP3146269B1 (fr) 2019-08-14

Family

ID=50942230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15719763.3A Active EP3146269B1 (fr) 2014-05-22 2015-05-08 Montage, plaque de cuisson et appareil de cuisson à gaz

Country Status (4)

Country Link
EP (1) EP3146269B1 (fr)
CN (1) CN106461215B (fr)
ES (1) ES2747990T3 (fr)
WO (1) WO2015176975A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3220046T3 (pl) * 2016-03-17 2019-09-30 BSH Hausgeräte GmbH Armatura gazowa i urządzenie do gotowania

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4097630B2 (ja) * 2004-06-28 2008-06-11 リンナイ株式会社 火力調節装置
EP2457023B1 (fr) * 2009-07-24 2016-09-07 BSH Hausgeräte GmbH Unité de vannes à gaz pour un brûleur à gaz
US8881769B2 (en) * 2010-09-20 2014-11-11 Bsh Bosch Und Siemens Hausgeraete Gmbh Structure of a gas-valve unit
WO2012080054A2 (fr) * 2010-12-14 2012-06-21 BSH Bosch und Siemens Hausgeräte GmbH Unité vanne de gaz à système de changement de direction de course

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3146269A1 (fr) 2017-03-29
WO2015176975A1 (fr) 2015-11-26
CN106461215B (zh) 2019-11-05
ES2747990T3 (es) 2020-03-12
CN106461215A (zh) 2017-02-22

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