EP0640796B1 - Four de cuisson - Google Patents

Four de cuisson Download PDF

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Publication number
EP0640796B1
EP0640796B1 EP19930113394 EP93113394A EP0640796B1 EP 0640796 B1 EP0640796 B1 EP 0640796B1 EP 19930113394 EP19930113394 EP 19930113394 EP 93113394 A EP93113394 A EP 93113394A EP 0640796 B1 EP0640796 B1 EP 0640796B1
Authority
EP
European Patent Office
Prior art keywords
temperature
crosspiece
lower heat
operating
oven
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
EP19930113394
Other languages
German (de)
English (en)
Other versions
EP0640796A2 (fr
EP0640796A3 (fr
Inventor
M. c/o Whirlpool Italia s.r.l. Mayr-Willius
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.)
Bauknecht Hausgeraete GmbH
Whirlpool Europe BV
Original Assignee
Bauknecht Hausgeraete GmbH
Whirlpool Europe 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 Bauknecht Hausgeraete GmbH, Whirlpool Europe BV filed Critical Bauknecht Hausgeraete GmbH
Priority to EP19930113394 priority Critical patent/EP0640796B1/fr
Priority to DE59302937T priority patent/DE59302937D1/de
Publication of EP0640796A2 publication Critical patent/EP0640796A2/fr
Publication of EP0640796A3 publication Critical patent/EP0640796A3/xx
Application granted granted Critical
Publication of EP0640796B1 publication Critical patent/EP0640796B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • 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
    • F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
    • F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
    • F24C15/325—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation electrically-heated

Definitions

  • the invention relates to an oven with in the ceiling and floor area of a muffle arranged electrical heating elements for the top and bottom heat and with one of the muffle, preferably self-heated circulating air blower, the heating elements and the circulating air blower via a single combination arranged on the front - Rotary switches can be activated.
  • Such an oven is e.g. B. become known from DE-OS 27 57 059.
  • the radiators for the top and bottom heat are actuated by a first switch in a first embodiment, while the circulating air fan and the optionally assigned radiator can be switched on by a separate second switch.
  • the switch provided for the circulating air blower with associated radiator and the oven selector switch for the bottom and top heat are combined in a single combination rotary switch.
  • This combination rotary switch essentially consists of two concentric rotating rings or rotating disks which can be rotated independently of one another.
  • the selectable temperature values from 0 ° C to 275 ° C for the top and bottom heat are plotted on an inner scale, while operating symbols for combined heating operation top and bottom heat are arranged together with recirculation mode on an outer scale.
  • the known design shows a combination of two rotary switches in a single switch, but there are still two concentric rotating rings or rotating disks which can be rotated independently of one another must be operated accordingly.
  • the known design also shows an embodiment in which the radiator for the top heat can be used as a grill radiator.
  • the invention has for its object to simplify and improve an oven of the type mentioned with regard to the combination rotary switch.
  • the energy distribution between the lower and upper heat functions can be set as desired within certain limits, with or without connection of circulating air. Only one rotary knob is required to operate it.
  • the energy is distributed between top and bottom heat by that the turn-on times of the top and
  • the bottom heat radiator has a fixed relationship to each other that is directly assigned to the setting of the function knob.
  • Another embodiment of the invention provides that the energy distribution between top and bottom heat is achieved in that both radiators are operated continuously with a correspondingly regulated output, the ratio of the set outputs being directly associated with the setting of the function knob.
  • a further embodiment of the invention provides that the energy distribution between top and bottom heat is set so that a temperature gradient arises in the oven which is directly associated with the setting of the function knob, with the oven temperature being determined in each case in the lower and in the upper part using two sensors and is regulated so that the average temperature corresponds to the temperature set by the user.
  • one (upper) rotation area extends over a semicircle which is open at the bottom and to which a diaphragm semicircle which is open at the bottom is assigned, and that the other (lower) rotation area extends over a semicircle which is open at the top and one follows Open aperture semicircle is assigned above, and that both aperture semicircles complement each other to form an aperture ring.
  • the functional toggle can be arranged either continuously or adjustable in discrete steps.
  • a grid can be provided in the main operating stages.
  • a grill function can be set in that a grill temperature is set on the top heat function knob and on a temperature adjustment knob, to which a separate temperature symbol is assigned.
  • Fig. 1 shows a control unit 10, preferably a microcontroller, with power electronics 11 which, for. B. relays or triacs.
  • power electronics 11 which, for. B. relays or triacs.
  • 12 is a radiator for top heat
  • 13 a radiator for bottom heat
  • 14 a circulating air motor with a possibly assigned circulating air heater.
  • Temperature sensors inside the oven are denoted by 15.
  • a temperature knob 16 is provided for setting the temperature.
  • the switching of the top and bottom heat 12, 13 and the switching of the air motor 14 with its associated heating element is carried out with the aid of a function knob 17, by means of which a combination rotary switch (not shown) can be actuated.
  • the functional knob 17 which can be rotated through 360 ° acts according to FIG. 2 together with an aperture ring 18 arranged on the front side of the baking oven, not shown, which is composed of two semicircular apertures 19, 20, which correspond to rotation ranges 19 ', 20' of 180 ° each.
  • the lower semicircular diaphragm 20 contains the symbols bottom heat 20a, top and bottom heat 20b and top heat 20c.
  • the upper semicircular diaphragm 19 accordingly contains the symbols bottom heat 19a, bottom and top heat 19b and top heat 19c.
  • the upper semicircular diaphragm 19 contains the symbol 21 for circulating air for all switching positions.
  • the upper rotary range of the function knob 17 extends over the semicircular diaphragm 19, which is open at the bottom, and the lower rotary range over the open circular diaphragm 20, which is open at the top "only upper heat", with the upper rotary area 19 being assigned the recirculation function or heating. In the middle positions 19b and 20b, the lower and upper heat are equally present.
  • the marking 17a of the functional toggle 17 points to the position "top and bottom heat with connection of circulating air", top and bottom heat being supplied in the same size. Depending on the direction in which the function knob 17 is rotated, the top heat becomes more and the bottom heat less or vice versa.
  • Fig. 3 shows the temperature profile in an oven, the energy distribution between top and bottom heat is set so that a temperature gradient arises in the oven, which is directly associated with the setting of the function knob 17.
  • the temperature here is 200 ° C on the floor and 240 ° C on the ceiling.
  • the temperature gradient is represented by line 22.
  • two sensors are used 15 determines the oven temperature in the lower and upper part and regulated so that the average temperature 23 corresponds to the temperature set by the user, the temperature gradient 22 corresponding to the setting on the function knob 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)

Claims (8)

  1. Four comportant des éléments électriques chauffants (12. 13). disposés dans la zone de plafond et dans la zone de plancher d'un moufle pour la chaleur supérieure et la chaleur inférieure. ainsi qu'un ventilateur (14) de mise en circulation de l'air, de préférence à chauffage propre. associé aux moufles, les éléments chauffants (12, 13) et le ventilateur (14) de mise en circulation de l'air pouvant être mis en/hors circuit au moyen d'un unique sélecteur rotatif combiné disposé sur la face avant.
    caractérisé par le fait
    a) que le sélecteur rotatif avec sa manette de fonction (17) est disposé pouvant tourner sur 360° et qu'il est divisé en deux plages de rotation (19', 20') chacune réglable sur 180°,
    b) que les fonctions de mise en/hors circuit de la chaleur supérieure et de la chaleur inférieure des deux plages rotatives sont disposées de la même façon de sorte que, respectivement, dans la première position finale (19c, 20c), on ne peut amener que de la chaleur supérieure, dans la position médiane (19b, 20b), que de la chaleur supérieure et de la chaleur inférieure en valeur équivalente et, dans l'autre position finale, (19a, 20a), décalée de 180°, que de la chaleur inférieure et
    c) qu'à l'une (19') des deux plages de rotation (19', 20') est en outre associée la fonction de mise en/hors circuit (21) du ventilateur (14) de mise en circulation de l'air avec fonction de chauffage correspondante.
  2. Four selon la revendication 1, caractérisé par le fait que l'on règle la répartition d'énergie entre chaleur supérieure et chaleur inférieure par le moyen que les durées de mise en circuit des corps chauffants (12, 13) pour chaleur supérieure et pour chaleur inférieure sont l'une par rapport à l'autre, dans un rapport fixe qui correspond directement au réglage de la manette de fonction (17).
  3. Four selon la revendication 1, caractérisé par le fait que la répartition de l'énergie entre chaleur supérieure et chaleur inférieure s'obtient par le moyen que deux corps chauffants (12, 13) sont exploités en continu avec une puissance régulée en conséquence. le rapport des puissances prescrites dépendant directement de la position de la manette de fonction (17).
  4. Four selon la revendication 1. caractérisé par le fait que la répartition de l'énergie entre chaleur supérieure et chaleur inférieure se règle de façon telle que dans le four apparaît une pente (22) de la température qui dépend directement de la position de la manette de fonction (17), étant précisé qu'avec deux capteurs (15), la température du four est, dans chacune, de la partie inférieure et de la partie supérieure, déterminée et régulée de façon que la température moyenne (23) corresponde à la température prescrite par l'utilisateur.
  5. Four selon l'une des revendications 1 à 4, caractérisé par le fait que la première plage de rotation (19') s'étend sur un demi-cercle ouvert vers le bas auquel correspond un diaphragme en demi-cercle (19) fixe, ouvert vers le bas, que l'autre plage de rotation (20') s'étend sur un demi-cercle ouvert vers le haut auquel correspond un diaphragme en demi-cercle (20) ouvert vers le haut et que les deux diaphragmes en demi-cercle (19, 20) se complètent pour donner une couronne à aspect de diaphragme (18).
  6. Four selon l'une des revendications 1 à 5, caractérisé par le fait que la manette de fonction (17) est réglable en continu.
  7. Four selon l'une des revendications 1 à 5, caractérisé par le fait que la manette de fonction (17) est réglable par échelons discrets.
  8. Four selon l'une des revendications 1 à 7, caractérisé par le fait que pour prescrire une fonction gril, on règle sur la manette de fonction (17) la chaleur supérieure et, sur une manette (16) de réglage de la température, une température du gril à laquelle correspond un symbole de température propre.
EP19930113394 1993-08-23 1993-08-23 Four de cuisson Expired - Lifetime EP0640796B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19930113394 EP0640796B1 (fr) 1993-08-23 1993-08-23 Four de cuisson
DE59302937T DE59302937D1 (de) 1993-08-23 1993-08-23 Backofen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19930113394 EP0640796B1 (fr) 1993-08-23 1993-08-23 Four de cuisson

Publications (3)

Publication Number Publication Date
EP0640796A2 EP0640796A2 (fr) 1995-03-01
EP0640796A3 EP0640796A3 (fr) 1995-03-15
EP0640796B1 true EP0640796B1 (fr) 1996-06-12

Family

ID=8213196

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930113394 Expired - Lifetime EP0640796B1 (fr) 1993-08-23 1993-08-23 Four de cuisson

Country Status (2)

Country Link
EP (1) EP0640796B1 (fr)
DE (1) DE59302937D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2110605T3 (pl) * 2008-04-15 2015-10-30 Whirlpool Co Sposób gotowania
DE102011087480A1 (de) * 2011-11-30 2013-06-06 BSH Bosch und Siemens Hausgeräte GmbH Bedienvorrichtung für ein Kochfeld, Kochfeld mit einer derartigen Bedienvorrichtung sowie Verfahren zum Betreiben eines Kochfelds

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2757059C2 (de) * 1977-12-21 1985-05-02 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Backofen mit Umluftgebläse und Stahlungsheizkörpern
FR2519413B1 (fr) * 1982-01-06 1987-05-22 Dietrich & Cie De Four electrique de cuisson domestique
DE3329300A1 (de) * 1983-08-12 1985-02-28 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Anordnung zum ansteuern von heizzeitspannen und heizleistungen fuer herde
FR2552530B1 (fr) * 1983-09-23 1988-02-05 Europ Equip Menager Enceinte de cuisson a energie electrique
FR2562991B1 (fr) * 1984-04-11 1986-06-06 Europ Equip Menager Enceinte de cuisson a energie electrique
GB8711133D0 (en) * 1987-05-12 1987-06-17 Thorn Emi Appliances Cooking apparatus
DE3740904A1 (de) * 1987-12-03 1989-06-15 Licentia Gmbh Leistungssteuerung fuer heizelemente, insbesondere fuer umschaltbare haushalt- elektro- backoefen

Also Published As

Publication number Publication date
EP0640796A2 (fr) 1995-03-01
DE59302937D1 (de) 1996-07-18
EP0640796A3 (fr) 1995-03-15

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