EP3816517A1 - Commande d'appareil de cuisson comprenant un sélecteur de fonctionnement et de minuterie - Google Patents

Commande d'appareil de cuisson comprenant un sélecteur de fonctionnement et de minuterie Download PDF

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Publication number
EP3816517A1
EP3816517A1 EP20200001.4A EP20200001A EP3816517A1 EP 3816517 A1 EP3816517 A1 EP 3816517A1 EP 20200001 A EP20200001 A EP 20200001A EP 3816517 A1 EP3816517 A1 EP 3816517A1
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EP
European Patent Office
Prior art keywords
operating mode
cooking device
temperature
time
operating
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.)
Granted
Application number
EP20200001.4A
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German (de)
English (en)
Other versions
EP3816517B1 (fr
Inventor
Bernd Hopfenmüller
Robert Obermaier
Manfred Plankl
Günter ZSCHAU
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
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Publication of EP3816517A1 publication Critical patent/EP3816517A1/fr
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Publication of EP3816517B1 publication Critical patent/EP3816517B1/fr
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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
    • F24C7/085—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on baking ovens
    • 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
    • F24C14/00—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning
    • F24C14/02—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning pyrolytic type
    • 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
    • F24C7/087—Arrangement or mounting of control or safety devices of electric circuits regulating heat

Definitions

  • the invention relates to a cooking device controller, having an operating mode switch that is set up to set several operating modes of a cooking device, and a timer that is set up to set a time-delayed start of an operating sequence under at least one of the operating modes that can be set by the operating mode switch.
  • the invention also relates to a cooking appliance with such a cooking appliance control.
  • the invention also relates to a method for operating a cooking appliance.
  • the invention is particularly advantageously applicable to ovens, in particular baking ovens.
  • EP 3 249 302 A1 discloses a household cooking appliance.
  • the household cooking appliance has several electrically operated heating elements for heating a cooking space, a mechanically switching mode switch for switching on at least one heating element depending on a set operating mode, a mechanical temperature controller for regulating the heating elements switched on depending on a temperature of the cooking space, which mechanical temperature controller with the radiators is electrically connected in series, and has an electronic circuit, wherein a heating circuit relay is electrically connected in series with the radiators and the mechanical temperature controller and can be switched in a clocked manner by means of the electronic circuit, the electronic circuit is connected to the mode switch to enable a through the mode switch to recognize the set operating mode and the electronic circuit is set up to switch the heating circuit relay clocked depending on the recognized operating mode.
  • a method is used to operate a domestic cooking appliance, with the mechanical temperature controller being set to a temperature that is higher than an expected maximum cooking space temperature, in particular to a maximum, when an operating mode is selected in which at least one heating element is operated in a clocked manner adjustable temperature.
  • a cooking device control having an operating mode switch which is set up to set several operating modes of a cooking device, and a timer which is set up to set an operating sequence under at least one of the operating modes which can be set by the operating mode switch, the cooking device control being set up to to prevent a time-delayed start of an operating sequence, which includes at least one temperature-critical operating mode that can be set on the cooking appliance, due to the operating mode.
  • This cooking appliance control has the advantage that temperature-critical operating modes, which, when activated, could ignite the food to be cooked, cannot be started with a time delay, thus reducing the probability that flames can form unnoticed. Operating modes that are not temperature-critical and that typically do not ignite when they are activated can, on the other hand, also be started unsupervised with a time delay, since this is not critical in terms of safety even if the cooking chamber door is not or not properly closed.
  • this cooking appliance control can be implemented particularly inexpensively. There is no need for a door switch, which saves costs and avoids possible quality risks when installing it. Is still a door switch is available, the cooking device control can safeguard against failure or failure of the door switch.
  • operating mode-dependent means in particular that the time-delayed start of the operating sequence is prevented because the operating sequence includes the temperature-critical operating mode, for example because a temperature-critical operating mode is currently set via the operating mode switch. It is a further development that the time switch is set up to prevent the time-delayed start.
  • the operating mode switch is set up to be operated by a user to select one of several operating modes. It can be a rotary knob, rocker switch, etc. It can be an electronic or a mechanical switch.
  • the operating mode switch can also be referred to as an operating mode selector switch or a preselection switch. It is a further development that the operating mode switch is set up to switch on one or more heating elements of the cooking appliance in a manner provided for the operating mode, depending on the operating mode set. In particular, different radiators or combinations of radiators can be switched on for operation for different operating modes.
  • the heating elements can, for example, comprise electrical resistance heating elements, infrared radiators (heat lamps) such as halogen lamps and quartz radiators, etc.
  • the plurality of operating modes include at least one temperature-critical operating mode and at least one non-temperature-critical operating mode.
  • the cooking device is in particular a domestic cooking device with a cooking space that can be closed by a cooking space door. It is a further development that the cooking device is an independent oven or a combination device, e.g. an oven / hob combination ("stove").
  • this typically has a plurality of heating elements, for example electrical resistance heating elements, for heating the cooking space or for heat treatment of the food to be cooked in the cooking space.
  • the heating elements can, for example, be a lower heating element, an upper heating element or a grill element and / or have a ring or circulating air heater.
  • the operating mode switch can be used, for example, to set a lower heating mode using only the lower heating element, an upper heating operating mode using only the upper heating element, a hot air operating mode using only the ring or circulating air heating element when a fan is also used, a combined lower / upper heating element.
  • the timer (also referred to as oven timer or electronic clock) is an electronic circuit with an integrated circuit - e.g. a controller - which can switch a relay (hereinafter referred to as "interrupt relay" without loss of generality), which is electrically connected in series with, in particular, all radiators.
  • the interrupt relay can be, for example, a main relay or a heating circuit relay.
  • a time-delayed start of an operating sequence under a set operating mode can be set by a user on the timer, e.g. by entering a time period ("countdown period"), after which operation with the set operating mode is started, or by entering a start time. Time.
  • the timer can be set up to keep the interrupt relay open until the start of the operating sequence and then to close it.
  • the time switch can keep the interrupt relay closed or switch it in a clocked manner, in particular with a predetermined duty cycle and a predetermined period duration.
  • the interrupt relay can be an electrically controlled, mechanically switching relay.
  • the interrupt relay can alternatively be an electronically controlled switching element such as a triac or the like.
  • the time switch can have a display device for displaying, for example, a current time, the start time, the countdown time and, if applicable, further user information.
  • the time switch can also have at least one actuation means, for example, for setting a current time, the start time, the countdown time and possibly other user-side operating parameters and / or user inputs.
  • the at least one actuating means can have at least one button and / or at least one rotary knob, etc., for example.
  • the cooking appliance control has a mechanical temperature regulator which is set up to regulate a cooking space temperature as a function of a setpoint temperature set on it by a user. This happens without electronic control contributions, but mechanically or electromechanically. This has the advantage that the cooking device control can be designed to be particularly inexpensive and robust.
  • the mechanical temperature controller can also be referred to as an electromechanical temperature controller, mechanical thermoregulator or thermostat.
  • the mechanical temperature controller can be, for example, a capillary tube controller, a bimetal switch, etc.
  • the mechanical temperature regulator is electrically connected in series with all of the radiators, so that the mechanical temperature regulator enables a current to flow through the radiators.
  • the at least one temperature-critical operating mode comprises or is a grill operating mode (simple grill operating mode and / or convection grill operating mode), in particular comprises all adjustable grill operating modes, in particular only comprises all adjustable grill operating modes.
  • a grill operating mode simple grill operating mode and / or convection grill operating mode
  • all adjustable grill operating modes in particular only comprises all adjustable grill operating modes.
  • Another advantage is that a time-delayed operation to carry out a grill mode is hardly used due to its typically short duration and the frequently necessary monitoring of the food to be cooked, so that by preventing the time-staggered operation of a grill mode, no or no significant deterioration in the user-friendliness of the Cooking device is effected.
  • the mode switch is a mechanically switching mode switch that is connected to the time switch by means of an electrical line, via which the time switch receives information about an operating mode currently set on the mode switch, and the time switch is set up for this, depending on the information received via the data line to prevent the delayed start of the currently set operating mode, if this is a temperature-critical operating mode.
  • the use of a mechanically switching mode switch has the advantage of a particularly inexpensive and robust construction.
  • the mechanically switching operating mode switch is set up to open or close at least one associated electrical contact by means of manual actuation as a function of the selected or actuated switch position and thus the operating mode.
  • at least one heating element can be switched on for operation in the set operating mode.
  • the operating mode switch can switch on different radiators or combinations of radiators for different switch positions or operating modes.
  • the mode switch can be a rotary selector switch, for example.
  • the contact can be designed as a switch.
  • each heating element is electrically connected in series with a respective associated contact, in particular an individual switch. In this way, the radiators can advantageously be switched on individually or in combination.
  • the operating mode switch is a rotary selector switch which has a coding switch circuit board, the output of which is connected to an input of the electronic circuit via the electrical line.
  • the rotary selector switch can have simple switched contacts instead of a coding switch board.
  • the information includes an indication of the currently set operating mode.
  • operating modes for which time-shifted operation is prevented can be selected in a particularly differentiated manner using the timer.
  • Also being so beneficial opens up the possibility for the time switch to carry out further functions related to a certain operating mode, for example to operate the at least one associated radiator in a clocked manner, to switch auxiliary consumers such as fans, further fans, lights, motors, etc. on or off, etc.
  • the information includes an indication of whether the currently set operating mode is a temperature-critical operating mode. This results in the advantage that the operating mode switch can be designed in a particularly simple and inexpensive manner.
  • the information in particular does not include the identification of the specifically set operating mode, so in this regard it can only include an indication of whether the currently set operating mode is a temperature-critical operating mode.
  • the information summarizes at least two operating modes in groups, whereby the same information is generated or provided for operating modes of a group, e.g. grill operating modes - programs - top / bottom heat - off.
  • the time switch is set up to prevent the time-shifted start of the at least one temperature-critical operating mode from setting a time offset (countdown time duration or start time) for this operating mode.
  • a time offset countdown time duration or start time
  • This refinement can advantageously be implemented in a particularly simple manner and is particularly easy to understand for users.
  • the time switch when the time offset is set by a user, checks whether a temperature-critical operating mode is set and, if this is the case, prevents activation of the time-delayed start. This can be implemented, for example, in such a way that when a mode for setting the time offset is activated, no time offset can be set on the timer. Alternatively, a duration can be set on the timer, but the timer does not use it to activate the delayed start.
  • the cooking device control is set up to run operating programs and is set up to prevent a time-delayed start of at least one operating program if this operating program includes a temperature-critical operating mode that can be set on the cooking device.
  • This has the advantage that automatic programs, which at least during at least one Provide a temperature-critical operating mode for a period of time and are protected against a time-delayed start.
  • the cooking device control is set up to prevent a change from the non-temperature-critical operating mode to a temperature-critical operating mode while maintaining the time-delayed start when a time-delayed start of a non-temperature-critical operating mode that can be set on the cooking device is set. This prevents a time-shifted operation of a temperature-critical operating mode "through the back door" from being made possible. It is a further development that when a change is made from the non-temperature-critical operating mode to a temperature-critical operating mode, the time offset is automatically deleted or set to zero.
  • the cooking device control when the cooking device control prevents a time-delayed start of at least one temperature-critical operating mode that can be set on the cooking device due to the operating mode, the cooking device control is also set up to output a corresponding message to a user, for example on a display device of the timer, e.g. type "Delayed start not possible” or similar.
  • the object is also achieved by a cooking appliance, in particular a domestic cooking appliance, having a cooking appliance control as described above.
  • the cooking device can be designed analogously to the cooking device control and has the same advantages.
  • the cooking appliance has, in particular, a cooking space with a loading opening that can be closed by a door, several heating elements and an operating mode switch.
  • the cooking appliance is or includes, in particular, an oven.
  • the cooking device is a cooking device without a door switch, that is to say does not have a door switch.
  • a cooking appliance is advantageously particularly inexpensive and can be produced without quality risks caused by mounting the door switch. This is particularly advantageous for inexpensive cooking appliances that have a mechanically switching mode switch and an (electro) mechanical temperature controller.
  • the cooking appliance is an oven which is set up for operation in a temperature-critical grill operating mode, in which at least one grill heating element of the cooking appliance is activated.
  • the object is also achieved by a method for operating a cooking appliance, in which a time-delayed start of at least one operating mode that can be set on the cooking appliance is prevented due to the operating mode.
  • the method can be designed analogously to the cooking device and the cooking device control and has the same advantages.
  • Fig. 1 shows, as a sectional illustration in side view, a sketch of a household cooking appliance in the form of an oven 1 with a cooking chamber 2, which has a front loading opening 4 that can be closed by a cooking chamber door 3. There is no door switch that detects whether the oven door 3 is closed.
  • the cooking chamber 2 also has several heating elements 5 to 8, namely here a lower heating element 5, an upper heating element 6, a grill heating element 7 and a ring heating element 8, the ring heating element 8 being arranged together with a fan 9 behind a baffle wall 10.
  • the oven 1 also has a mechanically switching mode switch in the form of a rotary selector switch 11, by means of which, depending on its rotary position, the heating elements 5 to 8 are switched on individually or in combination for their operation by opening or closing correspondingly assigned contacts (not shown) become.
  • the heating elements 5 to 8 connected to a rotary position each correspond to a cooking operating mode, so that the rotary positions of the rotary selector switch 11 also correspond to the respective operating modes assigned.
  • two grill modes can be set here, namely a (simple) grill mode in which the top heat element 6 and grill element 7 are switched on, and a convection grill mode in which the top heat element 6 and grill element 7 on the one hand and the fan 9 on the other hand operate alternately become.
  • Each of the two grill modes is a temperature-critical mode. Alternatively, only the simple grill mode can be set.
  • the rotary selector switch 11 also has an off position in which none of the heating elements 5 to 8 are switched on and therefore cannot be activated or energized.
  • the rotary selector switch 11 is here connected to a coding circuit board 13 which is set up to convert the mechanical rotary position of the rotary selector switch 11 into an electrical code, the value of which clearly maps the rotary position.
  • An output of the coding board 13 is connected via an electrical line 14 to an input of an electronic time switch 15, the code value of the coding board 13 being made available as information via the electrical line 14.
  • the information therefore includes an indication of the operating mode currently set on the rotary selector switch 11.
  • the timer 15 has a display device 16 (see Fig. 2 , for example a segment display, a screen, etc.) and can receive input from a user, for example via setting devices such as buttons, buttons, etc. or - if the screen is a touch-sensitive screen - via operating fields on the screen.
  • the timer 15 is designed so that a user can use it to set a time-shifted cooking mode, for example by entering a time until the start of the time-shifted cooking mode or by entering a start time, possibly with a confirmation to activate the time-shifted cooking mode. The start time or the time remaining until the start can then be displayed on the display device 16, for example.
  • the oven 1 also has a mechanical temperature regulator 17 which can be adjusted by the user via a rotary knob or the like (not shown) and by means of which a set cooking space temperature in the cooking space 2 can be set.
  • the timer 15 is set up to prevent a time-delayed start of the grill operating mode (s) due to the operating mode, since these are temperature-critical in the sense that they are when activated or operated in the cooking chamber 2, food to be cooked could ignite.
  • the timer 15 recognizes the currently set operating mode based on the code value and, if a grill operating mode is recognized, prevents, for example, switching to an input mode of the timer 15 for setting a time-shifted operation, setting a time offset and / or confirming the time-shifted operation.
  • a corresponding message such as "time-shifted operation not possible" or the like can be displayed in the display device 16.
  • the timer 15 is also set up when a time-delayed operation or start of a non-temperature-critical cooking mode that can be set on the oven 1 (e.g. a bottom heat mode, a top heat mode, a combined bottom / top heat mode or a hot air mode ) is set to prevent a change from the non-temperature-critical operating mode to a grill operating mode while maintaining the delayed start.
  • a non-temperature-critical cooking mode e.g. a bottom heat mode, a top heat mode, a combined bottom / top heat mode or a hot air mode
  • This can be implemented, for example, by setting the time offset to zero, if necessary with the output of a corresponding message to the user.
  • Fig. 2 shows a simplified block diagram of a device control of the oven 1 from Fig. 1 .
  • the device control here comprises at least the rotary selector switch 11 and the timer 14 and, in one variant, can also have an interrupt relay 12, which is electrically connected in series with all the radiators 5 to 8.
  • the temperature controller 17 is in particular also connected electrically in series with all the radiators 5 to 8.
  • the timer 15 After entering a time offset on the timer 15, the timer 15 keeps the interrupt relay 12 open until the start time determined by the time offset and then closes the interrupt relay 12. On the timer 15, a duration of the operating mode or the operating sequence comprising the operating mode can be set , in which case the timer 15 opens the interrupt relay 12 again after the preset duration of the operating sequence has elapsed and thus terminates the operating sequence.
  • the present invention can be analogous to that of EP 3 249 302 A1 be trained.
  • a time-delayed operation can also be prevented, in addition to cooking modes, other temperature-critical operating modes, e.g. a pyrolysis operation in a pyrolysis-capable cooking device.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electric Stoves And Ranges (AREA)
EP20200001.4A 2019-11-04 2020-10-05 Commande d'appareil de cuisson comprenant un sélecteur de mode de fonctionnement et une minuterie Active EP3816517B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019216955.4A DE102019216955A1 (de) 2019-11-04 2019-11-04 Gargerätesteuerung mit Betriebsartenschalter und Schaltuhr

Publications (2)

Publication Number Publication Date
EP3816517A1 true EP3816517A1 (fr) 2021-05-05
EP3816517B1 EP3816517B1 (fr) 2024-07-24

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EP20200001.4A Active EP3816517B1 (fr) 2019-11-04 2020-10-05 Commande d'appareil de cuisson comprenant un sélecteur de mode de fonctionnement et une minuterie

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EP (1) EP3816517B1 (fr)
DE (1) DE102019216955A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213443A1 (fr) * 1985-08-06 1987-03-11 Bosch-Siemens HausgerÀ¤te GmbH Disposition pour commander des consommateurs d'éléctricité dans des fours domestiques
EP3249302A1 (fr) 2016-05-25 2017-11-29 BSH Hausgeräte GmbH Appareil de cuisson ménager

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5438180A (en) * 1993-01-21 1995-08-01 Whirlpool Corporation Electronic input control for a cooking oven having independent selection of function and sentence programming
DE102016209147A1 (de) * 2016-05-25 2017-11-30 BSH Hausgeräte GmbH Haushalts-Gargerät

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213443A1 (fr) * 1985-08-06 1987-03-11 Bosch-Siemens HausgerÀ¤te GmbH Disposition pour commander des consommateurs d'éléctricité dans des fours domestiques
EP3249302A1 (fr) 2016-05-25 2017-11-29 BSH Hausgeräte GmbH Appareil de cuisson ménager

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Publication number Publication date
EP3816517B1 (fr) 2024-07-24
DE102019216955A1 (de) 2021-05-06

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