EP2413041A1 - Appareil de cuisson - Google Patents

Appareil de cuisson Download PDF

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Publication number
EP2413041A1
EP2413041A1 EP11401547A EP11401547A EP2413041A1 EP 2413041 A1 EP2413041 A1 EP 2413041A1 EP 11401547 A EP11401547 A EP 11401547A EP 11401547 A EP11401547 A EP 11401547A EP 2413041 A1 EP2413041 A1 EP 2413041A1
Authority
EP
European Patent Office
Prior art keywords
latent heat
cooking appliance
cooking
heat storage
cooling device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11401547A
Other languages
German (de)
English (en)
Inventor
Wilko Harms
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
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP2413041A1 publication Critical patent/EP2413041A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/34—Elements and arrangements for heat storage or insulation
    • 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

Definitions

  • the present invention relates to a cooking appliance having at least one housing and at least one cooking space provided therein with at least one door in order to feed the cooking space.
  • various cooking appliances have become known, which have a housing and a cooking chamber provided therein, and which have a door to feed the cooking chamber.
  • Such cooking appliances can have an oven, which can be heated, for example, via top heat and / or bottom heat and / or circulating air heating. It is also possible to use microwaves to warm up the food in the oven. It is also possible that the cooking chamber is designed as a steamer or that the cooking chamber steam is supplied.
  • a disadvantage of the known systems is that not only the outer surface is cooled by the cooling air flow, but that with the cooling air flow and heat energy from the interior of the device and in particular from the cooking chamber is derived, whereby the energy consumption of the cooking appliance increases the heat loss is removed from the cooking chamber via the cooling and thus must be re-supplied inside the cooking chamber.
  • Another disadvantage of the known cooking appliances is that an additional noise level is created by the air flow of the cooling, which is often undesirable by the user.
  • the cooking appliance according to the invention has at least one housing and at least one cooking space provided therein, wherein the cooking space is accessible via at least one door in order to be able to feed the cooking space, for example, with food to be cooked.
  • At least one cooling device is provided, in particular to enable at least one externally accessible surface to be cooled.
  • At least one latent heat storage device is provided for at least partial absorption of heat loss from the cooking chamber. Furthermore, the power of the cooling device is controllable in dependence on the state of the latent heat storage device.
  • the cooking appliance according to the invention has many advantages.
  • the power of the cooling device can be controlled independently of the state of the latent heat storage device. This means that the cooling device is operated correspondingly strong only when required by the state of the latent heat storage device. If the latent heat storage has not yet reached the edge of its heat absorption capacity, the power of the cooling device can be reduced or even switched off until the cooling device can no longer absorb the heat loss that occurs. Only then is the cooling device activated or increased in its performance, so that the or at least one user accessible from the outside surface is cooled by the cooling device.
  • the cooling device it is possible to leave the cooling device at a low power level or even switched off during a large part or even the complete cooking process, whereby on the one hand the electrical energy for the cooling device can be saved and on the other hand a lower noise load by the cooling device. Furthermore, the energy consumption of the cooking appliance is also lowered by the fact that less heat loss is actively removed from the cooking appliance. If the power of the cooling device is increased, more heat loss is removed from the cooking appliance, which may mean that more heat is removed from the oven.
  • the invention enables a reduction of the energy consumption of a cooking appliance, while at the same time the noise load for the user decreases.
  • the full cooling capacity is only needed when the latent heat storage tank is completely filled.
  • the cooling intensity in several steps or continuously variable. It is also possible to control the cooling intensity by selectively switching on and off the cooling device.
  • the latent heat storage device comprises at least one latent heat storage, which comprises at least one latent heat storage means that performs a phase change at a predetermined temperature and / or under predetermined conditions.
  • At least one temperature sensor is provided. It is also possible to use other sensors to detect the state of the latent heat accumulator. For example, it can be determined via a temperature sensor when the latent heat accumulator reaches its maximum filling state. When a latent heat storage operates on phase change energy, the temperature of the latent heat storage remains almost constant until practically the entire phase change material has changed its phase. Only then does the temperature of the latent heat accumulator increase. Such a temperature increase can be detected via a temperature sensor, so that the cooling device can be activated accordingly by a control device.
  • the temperature sensor works as a threshold value sensor. It is also possible to determine a continuous signal for the temperature profile and to derive a suitable power of the cooling device from the temperature profile.
  • the cooling device has at least one fan, which generates a controllable air flow. It is possible that the fan is operated clocked by suitable switching on and off. It is also possible that the fan is operated in different power levels or that the performance of the fan is continuously controlled.
  • a fan has many advantages, since with the airflow generated by the fan and the vapors from the oven and from the device can be led out altogether.
  • At least one Peltier element is provided as a cooling device.
  • a Peltier element removes heat on one side while dissipating heat on the other side. This makes it possible to effectively cool the user-touchable surfaces while the discharged ones Performance is given elsewhere.
  • the latent heat storage device comprises at least one latent heat accumulator, which is arranged in at least one wall or in the door of the Gargeophuses, wherein the wall or the door in particular directly adjacent to the cooking chamber.
  • a latent heat storage may be provided on the wall adjacent to the cooking chamber, in particular between the latent heat storage and the inside of the wall, which adjoins the cooking still an insulating layer may be provided to reduce the heat loss from the oven as possible.
  • the latent heat storage device or at least one latent heat storage device is equipped with a latent heat storage that at least partially surrounds or adjoins at least one electronic assembly.
  • Electronic components have a working temperature range whose upper limits should not be exceeded for the safe functioning of the cooking appliance. Since the loss of heat escaping from the cooking chamber in the cooking appliance leads to heating of the interior of the housing of the cooking appliance, a cooling air flow is typically provided on the electronic assembly of a cooking appliance.
  • a latent heat accumulator may be provided on the electronic assembly and at least partially adjacent to it or partially or completely surrounding it, so that the latent heat accumulator reliably delays or prevents the heating of the electronic assembly.
  • a cooling device does not need to be operated, since the heat capacity of the latent heat storage is sized appropriately enough so that an inadmissible temperature would be reached only after completing a proper cooking process.
  • a cooling device Via a temperature sensor on the electronic assembly, the temperature occurring there can be controlled and on reaching or exceeding the allowable temperature, a cooling device can be activated to lower the temperature or at least limit. If the temperature is prohibitively high, the entire cooking appliance can be switched off to prevent damage.
  • At least one latent heat accumulator is provided on the door and / or on the handle. It is possible, for example, that the latent heat storage is provided at least partially in a spar of the door. But it is also possible that the latent heat storage is located between the windows of the door. If the memory is arranged in a viewing area, it is advantageous if the latent heat storage is transparent is. In addition, it is conceivable to equip the operating elements or operating displays with a latent heat storage.
  • a latent heat storage in the door or a handle is advantageous because it can be protected from overheating typically touchable by a user surfaces. Only after long periods of operation at high temperatures, when the latent heat storage has absorbed its maximum storage energy, the temperature rises at the door or the handle. Then, the temperatures occurring there can be limited by suitable measures with the cooling device.
  • the latent heat storage comprises at least one eutectic material such as a eutectic metal.
  • eutectic material such as a eutectic metal.
  • paraffins or the like wherein the temperature level is selected so that the user is reliably protected from burns.
  • materials inside the cooking appliance whose temperature during the phase change is considerably higher than in the case of latent heat stores which are arranged close to or even on the outer surface.
  • the use of chemical heat accumulators is also preferred, which absorb or release energy in particular via absorption and desorption processes. For example, in complex compounds of salts with water or other substances, such as in particular ammonia, a considerable amount of energy can be stored.
  • the inventive method is used to operate a cooking appliance with a cooking chamber, wherein a latent heat storage are provided with at least one latent heat storage and at least one cooling device.
  • the heat lost from the latent heat storage from the cooking chamber is at least partially absorbed by the latent heat storage and the power of the cooling device is controlled in dependence on the state of the latent heat storage.
  • the inventive method has many advantages, since it allows a simple and flexible use, the energy consumption of a cooking appliance for a cooking process can be reduced, while at the same time the acoustic stress can be reduced by emitted noise.
  • cooking appliance 1 is designed as a stove 20 and has a hob 25 with four heating fields here 26, and a cooking chamber 3 on the housing 2 on.
  • Control buttons 27 and a display device 29, and a control device 8 are used to control the cooking device. 1
  • the cooking appliance 1 has a door 4, via which the cooking chamber 3 is accessible. To open the door 4, a handle 21 is provided, which is provided here above the window 18.
  • a latent heat storage device 6 is arranged here, which has a plurality of latent heat accumulator 9.
  • FIG. 1 For example, in the left side wall 12, a latent heat accumulator 9 is provided and a further latent heat accumulator 9 is arranged above the cooking chamber 3.
  • a temperature sensor 10 or a plurality of such temperature sensors can be provided in order to use the control device 8 in FIG Fig. 2 Controlled to operate cooling devices shown in more detail.
  • latent heat accumulators 9 in a wall 12 of the housing 2, it is also possible to use a further and not shown latent heat accumulator in a spar 16 of the door 4. It is also within the scope of the invention to equip the entire frame 19 in the door 4 with a latent heat accumulator 9.
  • FIG. 2 shows an electronic assembly 14 with an electronics housing 30, which has in the interior of the electronics housing 30 via a wall lining of latent heat storage 13, so that the board 33 is substantially or virtually completely surrounded by the electronic components 15 of latent heat storage 13.
  • the electronic assembly 14 is accessible via a plug 32 from the outside.
  • a temperature sensor 10 detects constantly or at periodic intervals a measure of the prevailing at the electronic assembly 14 temperature and passes the signal to the controller 8 further, which is provided for controlling the cooling device 5.
  • the one cooling device 5 may comprise a Peltier element 11 which receives the heat present in the interior of an electronics housing 30 and dissipates it to the outside.
  • the other cooling device 5 comprises a fan 7, which can supply cooler air from outside or sucked from the interior of the electronics housing 30 warmed up air.
  • the cooling devices 5 can remain completely switched off for typical cooking processes, or else they are only operated at reduced power. This reduces the energy consumption of the cooking appliance 1 and also the noise pollution is reduced because, for example, the fan 7 does not have to be operated or only shorter and / or less intensive.
  • FIG. 3 shows a schematic front view of a cooking appliance 1, are provided in the latent heat accumulator 9 on the side walls 12 of the housing 2, in the handle 21 and above the cooking chamber 3.
  • the different latent heat storage 9 different heat storage media e.g. have a chemical heat storage, wherein the temperature of the phase change of the respective latent heat accumulator 9 can vary depending on the conditions required in the environment of the respective latent heat storage 9.
  • FIG. 4 shows a schematic cross section through a door 4 of a cooking appliance 1, wherein here on the handle 21, a latent heat accumulator 9 is provided, which contributes to the effective cooling of the handle 21.
  • the door 4 here has a structure of three discs, wherein between the outer disc 22 and the inner disc 23, the middle disc 24 is provided. In the disc spaces 34 latent heat storage 9 may be provided.
  • At least one insulating layer 31 is provided between the inner disk 23 and the middle disk 24.
  • highly effective insulating layers 31 may consist of evacuated insulators to reduce the heat load on the latent heat accumulator 9.
  • an insulating layer 31 and in the lower region of the door 4 a latent heat accumulator 9 is provided between the inner disc 23 and the central disc 24. It is also possible that an insulating layer 31 and a latent heat accumulator 9 are arranged both in the upper and in the lower region of the inter-disc space 34 between the inner disc 23 and the middle disc 24, wherein preferably the insulating layer 31 is arranged closer to the inner disc 23 is.
  • the latent heat storage 9 has a sufficient heat capacity for the intended process duration.
  • the latent heat accumulator 9 may be integrated in a built-in cabinet of the cooking appliance 1, not shown here.
  • the invention provides a cooking appliance 1 and a method for operating a cooking appliance 1, with which it is possible with lower energy consumption to effectively limit the surface temperatures of the externally accessible surfaces, so effectively effectively harms the user. At the same time, the possible acoustic load decreases, so that overall an effective cooking appliance 1 and an effective method for operating a cooking appliance 1 are made available.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)
  • Electric Stoves And Ranges (AREA)
EP11401547A 2010-07-30 2011-07-11 Appareil de cuisson Withdrawn EP2413041A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010036768 DE102010036768A1 (de) 2010-07-30 2010-07-30 Gargerät

Publications (1)

Publication Number Publication Date
EP2413041A1 true EP2413041A1 (fr) 2012-02-01

Family

ID=44584096

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11401547A Withdrawn EP2413041A1 (fr) 2010-07-30 2011-07-11 Appareil de cuisson

Country Status (2)

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EP (1) EP2413041A1 (fr)
DE (1) DE102010036768A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2639514A1 (fr) * 2012-03-14 2013-09-18 BSH Bosch und Siemens Hausgeräte GmbH Dispositif d'appareil de cuisson
DE102013206868A1 (de) * 2013-04-16 2014-05-08 E.G.O. Elektro-Gerätebau GmbH Verfahren zur Kühlung eines Halbleiterbauteils und Vorrichtung
EP2466219B1 (fr) * 2010-12-17 2015-10-14 Miele & Cie. KG Appareil de cuisson avec aux moins deux accumulateurs de chaleur latente
EP2933568A1 (fr) * 2014-04-16 2015-10-21 Miele & Cie. KG Appareil ménager et procédé
EP4001769A3 (fr) * 2020-11-24 2022-10-19 Miele & Cie. KG Appareil de cuisson doté d'un dispositif de refroidissement et dispositif de refroidissement pour un appareil de cuisson

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158378A1 (fr) * 1984-03-02 1985-10-16 Philips Patentverwaltung GmbH Réservoir de chaleur latente pour réfrigération
US6279464B1 (en) * 2000-08-15 2001-08-28 Front Direction Industrial Limited Cooking appliance
EP1156282A1 (fr) * 2000-05-17 2001-11-21 V-Zug AG Four de cuisson à dispositif de purge
DE10128370A1 (de) * 2001-06-12 2002-12-19 Bsh Bosch Siemens Hausgeraete Gargerät mit einem Kühllüfter
DE10226657A1 (de) * 2002-06-14 2004-01-08 BSH Bosch und Siemens Hausgeräte GmbH Garofen und Verfahren zum Betrieb desselben
WO2006029597A1 (fr) * 2004-09-13 2006-03-23 Rational Ag Accumulateur thermique et appareil de cuisson comprenant un accumulateur thermique de ce type
WO2009083383A1 (fr) * 2007-12-31 2009-07-09 Arcelik Anonim Sirketi Appareil électroménager
EP2143573A1 (fr) * 2008-07-08 2010-01-13 Behr GmbH & Co. KG Dispositif de chauffage pour véhicule automobile

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19824172A1 (de) * 1998-05-29 1999-12-09 Rational Gmbh Gargerät mit Energiespeicher- und Energieentnahmesystem

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158378A1 (fr) * 1984-03-02 1985-10-16 Philips Patentverwaltung GmbH Réservoir de chaleur latente pour réfrigération
EP1156282A1 (fr) * 2000-05-17 2001-11-21 V-Zug AG Four de cuisson à dispositif de purge
US6279464B1 (en) * 2000-08-15 2001-08-28 Front Direction Industrial Limited Cooking appliance
DE10128370A1 (de) * 2001-06-12 2002-12-19 Bsh Bosch Siemens Hausgeraete Gargerät mit einem Kühllüfter
DE10226657A1 (de) * 2002-06-14 2004-01-08 BSH Bosch und Siemens Hausgeräte GmbH Garofen und Verfahren zum Betrieb desselben
WO2006029597A1 (fr) * 2004-09-13 2006-03-23 Rational Ag Accumulateur thermique et appareil de cuisson comprenant un accumulateur thermique de ce type
WO2009083383A1 (fr) * 2007-12-31 2009-07-09 Arcelik Anonim Sirketi Appareil électroménager
EP2143573A1 (fr) * 2008-07-08 2010-01-13 Behr GmbH & Co. KG Dispositif de chauffage pour véhicule automobile

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2466219B1 (fr) * 2010-12-17 2015-10-14 Miele & Cie. KG Appareil de cuisson avec aux moins deux accumulateurs de chaleur latente
EP2639514A1 (fr) * 2012-03-14 2013-09-18 BSH Bosch und Siemens Hausgeräte GmbH Dispositif d'appareil de cuisson
DE102013206868A1 (de) * 2013-04-16 2014-05-08 E.G.O. Elektro-Gerätebau GmbH Verfahren zur Kühlung eines Halbleiterbauteils und Vorrichtung
EP2933568A1 (fr) * 2014-04-16 2015-10-21 Miele & Cie. KG Appareil ménager et procédé
EP4001769A3 (fr) * 2020-11-24 2022-10-19 Miele & Cie. KG Appareil de cuisson doté d'un dispositif de refroidissement et dispositif de refroidissement pour un appareil de cuisson

Also Published As

Publication number Publication date
DE102010036768A1 (de) 2012-02-02

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