EP3647664A1 - Procédé de fonctionnement automatique d'un appareil de cuisson à la vapeur et appareil de cuisson à la vapeur correspondant - Google Patents

Procédé de fonctionnement automatique d'un appareil de cuisson à la vapeur et appareil de cuisson à la vapeur correspondant Download PDF

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Publication number
EP3647664A1
EP3647664A1 EP19202249.9A EP19202249A EP3647664A1 EP 3647664 A1 EP3647664 A1 EP 3647664A1 EP 19202249 A EP19202249 A EP 19202249A EP 3647664 A1 EP3647664 A1 EP 3647664A1
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EP
European Patent Office
Prior art keywords
distance
user
distance sensor
speed
steam
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
EP19202249.9A
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German (de)
English (en)
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EP3647664B1 (fr
Inventor
Thomas Metz
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.)
Miele und Cie KG
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Miele und Cie KG
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Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP3647664A1 publication Critical patent/EP3647664A1/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
    • F24C15/00—Details
    • F24C15/006—Arrangements for circulation of cooling air
    • 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

Definitions

  • the invention relates to a method for automatic operation of a steam cooker according to claim 1 and a steam cooker for use in such a method according to claim 10.
  • Steam cookers are known with which food can be cooked (steamed) under steam.
  • a steam cooker or a steam cooking device is a cooking device with heating by means of steam.
  • Steam cookers are available as individual devices or as combination devices, e.g. known as an oven or as a microwave with integrated steaming function.
  • the user can hit the steam up to 100 ° C out of the cooking space and injure the user through scalding, especially in the area of the upper body, head and face.
  • the water vapor can also escape upward from the cooking space and condense on an operating element cover, which is usually arranged directly above the cooking space or above its door.
  • the condensing water on the control panel can damage it. This can also affect the surroundings of the steam cooker, e.g. for electrical devices, furniture such as in particular kitchen furniture for holding the steam cooker, curtains, cookbooks and the like in the kitchen and beyond.
  • the cooling air fan In order to prevent the hot steam emerging from the cooking chamber when the door of the cooking chamber is opened from reaching the user or the control panel in an undesired concentration, it has hitherto been customary for the cooling air fan to be operated continuously at a speed which is suitable during the steaming process , in the event of a sudden opening of the door of the cooking space, mix the steam vapors emerging from the cooking space sufficiently with cold air and keep them away from the control panel as well as from the surroundings of the steam cooker.
  • a disadvantage of the continuous operation of the blower of the cooking chamber during the entire steam cooking process is that this can lead to noises which the user may find annoying, especially at higher blower speeds.
  • Another disadvantage is that the permanent operation of the fan of the cooking space during the entire steam cooking process can lead to a corresponding need for electrical energy.
  • blower can wear out quickly and fail due to the permanent operation. This can prevent the operation of the steam cooker until it is repaired, which is usually to be carried out by a customer service. To avoid this, it may be necessary to make the blower long-lasting, but this can lead to increased blower costs, which can increase the cost of the steamer as a whole.
  • a control element on the steam cooker e.g. a button
  • the speed of the fan in particular the cooling air fan
  • the user can increase the speed of the fan sufficiently before opening the door of the cooking space. In this case, however, the user would have to wait until the fan has built up the required air flow before he can actually open the door of the cooking space without suffering the disadvantages described above.
  • the invention thus presents the problem of providing a steam cooking device of the type described at the outset, so that the fan can be operated at a lower speed than previously customary during the cooking process, without the disadvantages mentioned above when opening the door of the cooking space and the like associated escape of hot water vapor from the cooking space.
  • At least an alternative to known steamers of this type is to be created.
  • any sensors that are suitable for the corresponding application can be used as the distance sensor.
  • infrared sensors e.g. as a reflection light barrier or as a reflection light sensor, ultrasound sensors or radar sensors.
  • the present invention is based on the finding that a distance sensor can be used to distinguish between the presence and absence of a user within a detection range of the distance sensor and thus preferably in front of the steam cooker.
  • the steam cooker 1 has a steam generator which is arranged outside the cooking chamber and can convey hot water steam into the cooking chamber.
  • the blower in particular the cooling air blower, can be operated at a first speed, in particular at a first temperature of the cooking space, which is suitable for carrying out the cooking operation, but at the same time is suitable for annoying noises and useless operation with a corresponding energy consumption of the blower to avoid.
  • the disadvantages described above can be avoided.
  • the fan in particular the cooling air fan
  • the second speed which is greater than the first speed.
  • This second rotational speed can be suitable for influencing the hot water vapor emerging from the cooking space in such a way that when a user opens the door of the cooking space, the hot water vapor which is countered to it is sufficiently mixed with cool air and / or in a direction of flow away from the user and / or is diverted away from the control panel. In this operating state, the usual way of operating such a steam cooker can thus be achieved.
  • the fan is operated at a second speed when the presence of the user is detected within the first distance from the distance sensor.
  • the fan is operated at the second speed as soon as the user is detected within the first distance, with the detection of the user starting a timeout counter with a predetermined or predeterminable time interval and the fan with the second Speed is operated until the time interval has expired.
  • a renewed intrusion of the user in the first distance could reset the timeout counter and / or restart the time interval.
  • the first speed is zero. Such a speed corresponds to a standstill of the fan.
  • the first speed is a minimum operating speed.
  • a minimum operating speed is understood to be one which is suitable for enabling the steam cooker to be operated.
  • the minimum operating speed is suitable for sufficiently cooling the cooking device, in particular the electronic components, during operation. This speed is lower than such a speed which would be suitable for conveying the hot water vapor away from the door of the cooking space in such a way that, if it is opened, no hot water vapor can strike the user or reach the control panel.
  • the second speed is designed to convey the hot water vapor out of the cooking space in such a way that only a permissible amount of hot water vapor can escape from the cooking space, if at all, when a door to the cooking space is opened.
  • At least the second speed corresponds to the previously usual speed, which is used to deflect and / or cool hot steam escaping from the cooking space as the permanent operating speed of the fan as described above, if the door of the cooking space is opened by the user.
  • the first distance is approximately 2 m, preferably approximately 1 m.
  • the first distance should be selected so that the change from the first speed to the second speed of the fan of the cooking space described above does not occur until the presence of a user is detected so close to the steam cooker that it can be assumed that the user want to open the door of the cooking space. This can be the case, for example, at a first distance of approximately 2 m.
  • the first distance is preferably selected to be approximately 1 m, since it is then highly likely that, in the case of a conventional kitchen size, the user has approached the steam cooker in order to open the door of the cooking space.
  • the specification of approx. 1 m or approx. 2 m should include a deviation from the exact dimension by up to 25 percent in each direction.
  • the first distance can also be selected or specified for each value between the two dimensions, including the tolerance mentioned.
  • a first distance is a distance from the area between 0.75 m and 2.5 m to the device. This distance is preset at the factory or can be selected by user.
  • This aspect of the present invention is based on the knowledge that it may happen that the presence of the user is recognized within the first distance from the steamer and in response to this, as described above, the speed of the fan is increased to the second higher speed, although the User actually does not open the door of the cooking space at all. If the user has not opened the door of the cooking space within this predetermined period of time, it can be assumed that the user's approach to the steam cooking device was wrongly understood as the intention of the user to open the door of the cooking space. In this case, the second speed can be maintained for the predetermined period of time in order to avoid annoying rapid noise changes for the user. Then it is possible to switch back to the first lower speed in order to be able to use the advantages of operating the steaming process again at the first speed, as described above.
  • the temperature of the cooking space can be reduced as an additional measure. If it is assumed according to the invention that the approach of a user in the first distance to the distance sensor of the steam cooker suggests his intention to open the door of the cooking space, then this intention can be confirmed when the second short distance is undershot and, as an additional measure, the The temperature of the cooking space can be adjusted to the expected opening of the cooking space door.
  • Another aspect is to use the detection of the approach of the user, in particular the presence of the user within the second distance to the distance sensor, in order to open the door of the cooking space at least partially or completely as an additional measure. This represents a significant gain in comfort.
  • the additional measure such as opening the door of the cooking space, can additionally take place as a function of an operating state of the appliance and / or as a function of a process state of a cooking process.
  • the temperature of the cooking chamber can be reduced at the same time, which can offer various advantages for the user.
  • the temperature of the hot water vapor that can escape from the cooking space can be reduced, so that it can be felt less uncomfortably by the user.
  • a warming function can also be started in a simple manner by the user, in which the user opens the cooking chamber door until sufficient steam has escaped from the cooking chamber and a temperature suitable for the warming function has been set in the cooking chamber. If the cooking chamber door is then closed again, a warming function can be carried out instead of a cooking function at this lower temperature, as will be described in more detail below.
  • the user can be alerted to the reaching of the second temperature by a signal tone and / or a display.
  • the temperature of the cooking space can be adjusted by different measures.
  • a preferred measure is that the steam generator is switched off as long as the user is detected within the second distance from the distance sensor.
  • the second temperature is approximately 70 ° C. Using this value as the second temperature can be advantageous, because in this way the cooking of the food in the cooking space of the steam cooker can be ended and a warming function can be started. Thus, the user can easily end the steaming process itself, switch to the keep-warm function and, for example, prepare the removal and serving of the cooked foods while the foods are in the keep-warm state.
  • the second distance is approximately 1 m, preferably approximately 0.5 m. Choosing the second distance so small at 1 m, preferably around 0.5 m, can ensure that the functions triggered thereby are only carried out by the steamer when the user is really in front of the steamer or in front of its distance sensor located. This can help prevent accidental incorrect operation and incorrect triggering of these functions.
  • the specification of approx. 1 m or approx. 0.5 m should include a deviation from the exact dimension by up to 10 percent up and 30 percent down.
  • the second distance can also be selected or specified for each value between the two dimensions, including the tolerance mentioned.
  • a second distance is a distance from the range between 0.35 m and 1.1 m to the device. This distance is preset at the factory or can be selected by user.
  • the distance sensor has a detection area in which the presence of a user can be detected within the first distance, preferably and the second distance, the distance sensor being designed and arranged, with its detection area at least the presence of a user immediately in front of a front of the steam cooker.
  • This aspect of the present invention is based on the knowledge that kitchen appliances such as steam cookers are usually accessible to the user from only one side, which is usually the front of the appliance.
  • a user will usually be in front of a steam cooker to operate it immediately, so that the first and second distances described above are then reliable can be detected if the distance sensor has a detection area which is oriented away from the front of the steam cooker towards the user.
  • the presence or absence of a user in the detection area can be reliably detected.
  • a further distinction can be made between the two distances.
  • an approach of the user into the first and / or into the second distance as well as a subsequent operator input of the user and subsequent leaving of the first and / or second distance can be detected.
  • Such an action takes place, for example, when the user checks or changes an operating setting. Since it is not to be expected here that the user will open the oven door promptly after this sequence of actions, the time interval triggered when entering the first distance and / or the time interval triggered when entering the second distance can be ended immediately and / or the timeout counter can be ended will.
  • the present invention also relates to a steam cooker for use in a method as described above with a cooking chamber which is designed to receive food to be cooked, with a blower, in particular a cooling air blower which is designed to cool or deflect hot water vapor escaping when the cooking chamber door is opened, and with at least one distance sensor, which is designed to detect the presence or absence of a user at least within a first distance from the distance sensor.
  • a blower in particular a cooling air blower which is designed to cool or deflect hot water vapor escaping when the cooking chamber door is opened
  • at least one distance sensor which is designed to detect the presence or absence of a user at least within a first distance from the distance sensor.
  • the distance sensor is further configured to detect the presence or absence of a user at least within a second distance from the distance sensor, the second distance from the distance sensor being less than the first distance from the distance sensor.
  • the distance sensor has a detection area in which the presence of a user can be detected within the first distance, preferably and the second distance, the distance sensor being designed and arranged, with its detection area at least the presence of a user immediately in front of a front of the steam cooker.
  • a longitudinal direction X extends, which can also be referred to as depth X.
  • a transverse direction (not shown) extends perpendicular to the longitudinal direction X, which can also be referred to as the width.
  • a vertical direction Z which can also be referred to as height Z, extends perpendicular to both the longitudinal direction X and the transverse direction.
  • FIG. 1 shows a longitudinal section of a steamer 1 according to the invention.
  • the steamer 1 is preferably a steamer 1, but can also be an oven 1 with a steamer function or a microwave 1 with a steamer function.
  • the steam cooker 1 is installed as a built-in appliance in a kitchen furniture unit, so that the steam cooker 1 is surrounded by cabinet elements 2 at the height Z upwards and downwards.
  • the steam cooker 1 has a front side 10, which can also be referred to as the front side 10 or as the appliance front 10. Inside the steam cooker 1 there is a cooking chamber 11 in which food to be cooked can be accommodated. Furthermore, the steam cooker 1 has a steam generator, not shown, which is arranged outside the cooking chamber 11 and can convey hot steam into the cooking chamber 11. Above the cooking space 11 there is a blower 12 which can cool the outside of the cooking space 11, in particular the electronics of the steam cooker 1, in order to carry out the operation of the steam cooker 1, in particular the steaming of the food located there.
  • the cooking space 11 is accessible to a user from the front 10 of the steam cooker 1 via a cooking space door 13. For this purpose, the cooking chamber door 13 can be gripped by the user on a handle 14 and pivoted downward.
  • the steam cooker 11 has an operating element cover 15 above the cooking space door 13, which can also be referred to as a switch cover 15.
  • the control panel 15 has various controls (not shown) which can be used by the user to influence the operation of the steam cooker 1.
  • a distance sensor 16 is arranged in the area of the control panel 15, which has a detection area A, which is conical from the front 10 of the Steam cooker 1 away and pointing towards a user who can be in front of the steam cooker 1. Within its detection range A, the distance sensor 16 can distinguish between a first distance B and a second distance C, the first distance B being approximately 1 m larger than the second distance C being approximately 0.5 m.
  • Fig. 2 shows a flow chart of a method according to the invention. It is assumed that the steam cooker 1 is operated by a user using a conventional steam cooking process.
  • the steam cooker 1 is operated in a first step 100 at a first speed of the fan 12 such that the first speed of the fan 12 is a minimum operating speed.
  • the fan speed is reduced as much as possible during the steam cooking process without components in the steam cooking device 1 or surrounding components of the kitchen furniture, from which the steam cooking device 1 is received, becoming too hot.
  • the speed of the blower 12 is chosen to be so low that disturbing noises for the user and unnecessary energy consumption can be avoided.
  • the detection area A of the distance sensor 16 is monitored to determine whether a user is approaching the steam cooker 1 in such a way that the first distance B from the distance sensor 16 is reached or fallen below.
  • a second step 200 the presence of a user is detected within the first distance B from the distance sensor 16 of the steam cooker 1, the operation of the fan 12 is continued in a third step 300 at a second speed which is greater than the first speed.
  • the second speed is designed such that, as previously known, hot water vapor emerging from the cooking space 12 through an open cooking chamber door 13 is cooled by mixing with cold air and / or its direction of flow is influenced, so that the user is neither affected by the emerging water vapor is disturbed or endangered. It is also suppressed in such a way that the escaping hot water vapor condenses on the control panel 15 or adjacent kitchen furniture parts, as a result of which this can be impaired.
  • the blower 12 is thus operated in a manner which has been customary throughout the steaming process.
  • this operation of the fan 12 at the second higher speed is limited to the period when a user is within the first distance B from the distance sensor 16, this operating state can be reduced and only in time immediately before a possible opening of the door 13 of the cooking space 11 are available.
  • the energy consumption caused thereby and noise generated compared to a continuous operation of the blower 12 with the second higher speeds can be avoided.
  • the steam cooker 1 switches back to operating 100 of the blower 12 at the first speed in order to be able to reap the advantages achieved thereby. This can be delayed, for example, by 2 minutes in order to avoid a noise change that is disruptive for the user.
  • the cooking space 11 can be operated at a second temperature, in particular as the target temperature. This can be selected to be lower than the temperature during the actual steam cooking process and preferably be in a range of approximately 70 ° in order to implement a warming function by the steam cooker 1.
  • a second temperature in particular as the target temperature. This can be selected to be lower than the temperature during the actual steam cooking process and preferably be in a range of approximately 70 ° in order to implement a warming function by the steam cooker 1.
  • a second temperature in particular as the target temperature.
  • the user wants to open the cooking space door 13
  • the user only has to approach the distance sensor 16 of the steam cooker 1 and in doing so fall below the first distance B from the distance sensor 16. This is recognized by the steam cooker 1 and the speed of the fan 12 is increased to the second speed. The user can then open the oven door 13.
  • the settings of the steam cooker 1 with regard to the operation of the blower 12 at the first speed and at the second speed can be made in such a way that, in combination with the first distance B from the distance sensor 16, the second speed of the blower 12 has already been sufficiently achieved and carried out, to discharge the corresponding amount of hot steam from the cooking space 11 when the user has actually reached the oven door 13 and opens it.
  • the oven door 13 can be opened safely for the user.
  • the user can also be able to open the cooking space door 13 safely without delay.
  • the steam generator is switched off by the user falling below the second distance C to the distance sensor 16 or even the temperature of the cooking chamber 11 is lowered to the keeping warm temperature at approx. 70 ° C.
  • a keeping warm function can also be carried out by the user by a correspondingly close approach the steamer 1 be prepared.
  • the user can activate the keep-warm function of the steam cooker 1 and, for example, prepare the removal and serving of the cooked dishes while the steam cooker 1 is in the keep-warm function. This can enable the user to operate the steam cooker 1 intuitively with little effort.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
  • Electric Ovens (AREA)
EP19202249.9A 2018-10-31 2019-10-09 Procédé de fonctionnement automatique d'un appareil de cuisson à la vapeur et appareil de cuisson à la vapeur correspondant Active EP3647664B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018127223.5A DE102018127223A1 (de) 2018-10-31 2018-10-31 Verfahren zum automatischen Betrieb eines Dampfgargeräts und Dampfgargerät hierfür

Publications (2)

Publication Number Publication Date
EP3647664A1 true EP3647664A1 (fr) 2020-05-06
EP3647664B1 EP3647664B1 (fr) 2022-04-06

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EP19202249.9A Active EP3647664B1 (fr) 2018-10-31 2019-10-09 Procédé de fonctionnement automatique d'un appareil de cuisson à la vapeur et appareil de cuisson à la vapeur correspondant

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EP (1) EP3647664B1 (fr)
DE (1) DE102018127223A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111981541A (zh) * 2020-08-26 2020-11-24 宁波方太厨具有限公司 一种吸油烟机的运行控制方法及吸油烟机
WO2022238100A1 (fr) * 2021-05-11 2022-11-17 Miele & Cie. Kg Procédé pour refroidir la buée ou la vapeur s'échappant du compartiment de cuisson d'un appareil de cuisson et appareil de cuisson

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10122402A1 (de) * 2001-05-09 2002-11-28 Rational Ag Verfahren zur Sicherung eines Gargeräts und dieses durchführende Gargerät
DE102004007122A1 (de) 2004-02-12 2005-09-08 Miele & Cie. Kg Verfahren zum Betreiben eines Gargeräts und Vorrichtung zur Durchführung des Verfahrens
EP2466211A1 (fr) * 2010-12-20 2012-06-20 Miele & Cie. KG Appareil de cuisson et procédé de fonctionnement d'un appareil de cuisson
EP3012532A1 (fr) * 2014-10-23 2016-04-27 Miele & Cie. KG Procédé et dispositif de commande d'un appareil ménager et appareil ménager

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014112169A1 (de) * 2014-08-26 2016-03-03 Miele & Cie. Kg Verfahren und Vorrichtung zum Steuern eines Haushaltsgeräts sowie Haushaltsgerät

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10122402A1 (de) * 2001-05-09 2002-11-28 Rational Ag Verfahren zur Sicherung eines Gargeräts und dieses durchführende Gargerät
DE102004007122A1 (de) 2004-02-12 2005-09-08 Miele & Cie. Kg Verfahren zum Betreiben eines Gargeräts und Vorrichtung zur Durchführung des Verfahrens
EP2466211A1 (fr) * 2010-12-20 2012-06-20 Miele & Cie. KG Appareil de cuisson et procédé de fonctionnement d'un appareil de cuisson
EP3012532A1 (fr) * 2014-10-23 2016-04-27 Miele & Cie. KG Procédé et dispositif de commande d'un appareil ménager et appareil ménager

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111981541A (zh) * 2020-08-26 2020-11-24 宁波方太厨具有限公司 一种吸油烟机的运行控制方法及吸油烟机
CN111981541B (zh) * 2020-08-26 2022-02-08 宁波方太厨具有限公司 一种吸油烟机的运行控制方法及吸油烟机
WO2022238100A1 (fr) * 2021-05-11 2022-11-17 Miele & Cie. Kg Procédé pour refroidir la buée ou la vapeur s'échappant du compartiment de cuisson d'un appareil de cuisson et appareil de cuisson
BE1029396B1 (de) * 2021-05-11 2022-12-12 Miele & Cie Verfahren zum Kühlen des austretenden Wrasens oder Dampfs aus dem Garraum eines Gargeräts und Gargerät

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DE102018127223A1 (de) 2020-04-30
EP3647664B1 (fr) 2022-04-06

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