EP2905542A1 - Refroidissement de composants de porte - Google Patents

Refroidissement de composants de porte Download PDF

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Publication number
EP2905542A1
EP2905542A1 EP15152241.4A EP15152241A EP2905542A1 EP 2905542 A1 EP2905542 A1 EP 2905542A1 EP 15152241 A EP15152241 A EP 15152241A EP 2905542 A1 EP2905542 A1 EP 2905542A1
Authority
EP
European Patent Office
Prior art keywords
channel
cooking appliance
appliance according
door
temperature
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Withdrawn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
EP15152241.4A
Other languages
German (de)
English (en)
Inventor
Armin Miesgang
Helmut Uglorz
Markus De Vries
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
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2905542A1 publication Critical patent/EP2905542A1/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Withdrawn legal-status Critical Current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
    • F24C15/006—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
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/04—Doors specially adapted for stoves or ranges with transparent panels
    • 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
    • F24C15/20—Removing cooking fumes
    • F24C15/2007—Removing cooking fumes from oven cavities

Definitions

  • the invention relates to a cooking appliance according to the preamble of claim 1.
  • the DE198912878U1 shows a cooking appliance with a fan and a first, disposed within a device housing channel, wherein a guided through the first channel air flow blows out warm air and vapor.
  • the object of the invention is to improve known cooking appliances.
  • One possible improvement is to ensure sufficient cooling of temperature-critical door components.
  • An inventive cooking appliance has a fan and a first, disposed within a device housing channel, wherein a guided through the first channel air flow expels warm air and / or vapor.
  • the cooking appliance has a second channel arranged inside the appliance housing, which is provided for cooling at least one temperature-critical door component.
  • a fan should in particular be understood to mean a driven turbomachine which conveys a gaseous medium by means of a rotating impeller.
  • a channel is to be understood, in particular, as a ventilation duct, which is suitable for conducting an air flow essentially lossless and as frictionless as possible through the cooking appliance.
  • Such a channel consists at least in sections of mostly rectangular or round cross-sections which extend tubular, funnel or trumpet-shaped.
  • Such a first channel diverts an air flow from the inside of the cooking appliance to the environment.
  • the extracted air stream includes warm air, which is removed for cooling components from these areas, and / or vapor, which is sucked out of the cooking chamber and consists of a mixture of warm air and water vapor and fat particles.
  • a second channel should in particular be understood to mean a ventilation duct formed independently of the first duct, which air flow from the inside of the cooking device directed specifically to temperature-critical components of the cooking appliance door. Due to the passing air flow, the surface temperature of the temperature-critical door components is lowered and a heat dissipation caused by the air flow, which leads to a decrease in the component temperature.
  • second channel is arranged so that it is fed by the air flow of the first blower.
  • the air flow of the first blower is used to cool the temperature-critical door components.
  • the second channel can be arranged substantially parallel to the first channel, as a so-called bypass.
  • a particularly good cooling of the temperature-critical door components arises when the second channel between fan and Wraseneinlass is connected to the first channel. Thus, no contaminated with Wrasen air flow is directed into the second channel and on the door components to be cooled.
  • the second channel which is arranged within a device housing, is connected to a further blower located in the cooking device and is fed by this further blower.
  • a further fan is to be understood as meaning, in particular, a further fan present in the cooking appliance, which serves for ventilating or cooling components.
  • blowers which transport clean air and no vapors, such as e.g. the blower for cooling the microwave components.
  • a further variant provides that the second channel, which is arranged within a device housing, is connected to a further, specially installed blower for supplying the second channel, and is fed by this fan.
  • a particularly good cooling of temperature-critical door components is erztilt when the second channel is equipped with an extra blower, which must be matched to any other functions, and thus purely adapted to the required air flow and the cross section of the second channel and controlled separately and regulated can be.
  • the motor of the blower according to one of the variants described above is a variable speed motor.
  • Particularly suitable variable speed is a variable speed motor.
  • the second channel opens into an exhaust opening on a housing flange.
  • an exhaust opening is to be understood as the area at which the air flow leaves the channel and escapes into the ambient atmosphere.
  • a housing flange is to be understood in particular as the portion of the cooking appliance which surrounds the cooking chamber opening. This extends parallel to the cooking appliance front and closes the side of the section between cooking and housing side wall, below between cooking and floor panel and above between cooking and control panel, so that a substantially frame-shaped housing flange is formed.
  • the housing flange also serves as a stop and contact surface for the cooking chamber door to achieve a seal of the cooking chamber to the environment.
  • the housing flange has at least one exhaust opening for blowing out the volume flow.
  • the exhaust opening may be an element formed from the housing flange, for example a deep-drawn element, or a separate element mounted in the housing flange, for example a plastic component.
  • the blow-out opening can be designed as an opening that points essentially over the width of the housing flange.
  • Vertical cross struts can increase the stability of the housing flange.
  • the exhaust openings may consist of a plurality, preferably three, juxtaposed openings, which are preferably formed substantially oval.
  • the exhaust openings may consist of a plurality of juxtaposed openings, which are preferably round.
  • the at least one exhaust opening of the second channel is directed downwards in the direction of discharge.
  • the airflow flowing through the second passage through the exhaust port is directed downward.
  • This direction of the cooling air flow is particularly advantageous since an air flow which does not occur perpendicularly to a surface produces a better removal of the heat. moreover A downwardly directed airflow flows away from possible air intake areas of the housing cooling.
  • the at least one exhaust opening is directed to a temperature-critical door component.
  • a temperature-critical component is to be understood in particular as meaning components which do not withstand the temperatures customary in the cooking appliance. These amount to up to approx. 280 degrees Celsius in the cooking chamber during a cooking process or up to approx. 500 degrees Celsius in the case of a pyrolytic self-cleaning process.
  • the door components are about 300 degrees Celsius.
  • plastic components do not withstand this thermal load and bend, or melt, burn or become brittle. Examples of such components are frame parts of the door, covers, design elements, elements of lights, covers of microwave traps or sealing elements.
  • a particularly good cooling of these temperature-critical components arises when the exhaust openings and thus the air streams are directed to these components.
  • the exhaust openings are arranged on the housing flange corresponding, in particular opposite and thus arranged at the same height to the door components to be cooled.
  • the temperature-critical door component is formed from a plastic, in particular an LCP plastic.
  • a plastic made of liquid crystalline polymers, also called liquid crystalline polymers (LCP)
  • LCP liquid crystalline polymers
  • both the first channel and the second channel open in the housing flange, which are preferably arranged überchrome.
  • This arrangement produces a particularly simple device structure, which also forms an appealing visual appearance. It is optional whether the first channel is arranged above the second channel or vice versa.
  • a further opening for a third channel is arranged in / on the housing flange. These are preferably used to supply the blower with fresh air from the environment of the cooking appliance.
  • the volume flow of the second channel generates an air flow between the housing flange and the door bottom, wherein the latter cools the temperature-critical door components.
  • the area of the door should be understood, which is the device flange opposite. This is the frame-like outer region of the inner pane in the case of a conventional door.
  • a particularly good cooling of the temperature-critical components of the door arises when in the gap, which remains in a closed cooking chamber door between the door bottom and the housing flange, through the preferably downward air flow of the second channel, the air flow can be continued and thus transported away the excess heat becomes.
  • the air is blown in the upper part of the door through the exhaust openings in this gap and directed down through the gap in the side areas of the door to the lower end of the door, where the air flow escapes into the environment.
  • a seal is arranged in the gap between the housing flange and door bottom, which is cooled by the air flow described above in the gap between the housing flange and the door bottom.
  • the energy efficiency of the cooking appliance can be increased because less energy is released to the environment.
  • a particularly good seal is created when the seal is made of a silicone-containing material. Due to the air flow and the associated removal of heat such a silicone gasket can also be used in a high temperature environment.
  • FIG. 1 is shown in a perspective view of a cooking appliance 1 for preparing food, which is an oven in the embodiment.
  • the cooking appliance 1 comprises a cooking chamber 2, which is bounded by the side walls 3 of the oven.
  • the cooking chamber 2 has a charging opening, which can be closed by a door 4.
  • Gargutto On the side walls 3 is ever a Gargutlinifact 5, which is suitable, Gargutlini 6, such.
  • the open door 4 gives the view of the housing flange 7 free, which is arranged like a frame around the loading opening of the cooking chamber 2 and serves as a bearing surface for the closed door 4.
  • FIG. 2 shows in a side view of a cooking appliance 1 - along the section AA FIG. 4 -
  • a second channel 9 for cooling temperature-critical door components 11 and / or the housing flange 7 is arranged. This is arranged corresponding to the door components 11 to be cooled, so that they are blown by a guided through the second channel 9 air flow.
  • a third channel 10 can be seen, which the cooking appliance 1 with Supplied fresh air. This fresh air is sucked through the door 4 in the embodiment.
  • FIG. 3 shows a plan view of a cooking appliance 1 without the upper housing cover, so that the housing ventilation can be seen.
  • the fan 12 draws air from the interior of the cooking appliance 1 and / or draws fresh air through the third channel 10 from the environment of the cooking appliance 1 and generates with this sucked air an air flow in the first channel 8.
  • This air stream sweeps over a vents flap thirteenth , which is a connection to the cooking chamber 2, and takes excess fumes, consisting of a mixture of warm air and water vapor and fat particles, with.
  • About a blowout of the housing flange 7 escapes this air flow into the environment.
  • the fan 12 feeds a second channel 9 with fresh air.
  • the air flow through the channel 9 opens into a blow-out opening 14, which is arranged in the housing flange 7. From there, the air stream flows to temperature-critical door components 11, which can give off their surface temperature by the air flow and its turbulence and are thereby cooled.
  • FIG. 4 shows a front view of a cooking appliance 1 with open door 4, which releases the view of the cooking chamber 2, which is surrounded by the housing flange 7.
  • the blown air stream cools the temperature critical door components 11, the third channel 10, the sucked air flow serves as fresh air for the fan 12, and the first channel 8, the blown air stream, the waste heat and releases the vapor to the environment.
  • the closed gap hiding the remaining gap hull housing flange 7 and door bottom 16 in the manner that less heat is released to the environment, which contributes to the energy efficiency of the cooking device 1 with the door closed.
  • Such a seal 15 is usually made of a silicone, which is not suitable for higher temperatures, in particular in pyrolytic self-cleaning processes due to the known material properties.
  • the exhaust ports 14 are turned obliquely down, so that the channel 9 flowing air flow between Housing flange 7 and door bottom 16 is directed downward in the direction of seal 15 and this also cools.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
EP15152241.4A 2014-02-11 2015-01-23 Refroidissement de composants de porte Withdrawn EP2905542A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014202443.9A DE102014202443A1 (de) 2014-02-11 2014-02-11 Kühlen von Türkomponenten

Publications (1)

Publication Number Publication Date
EP2905542A1 true EP2905542A1 (fr) 2015-08-12

Family

ID=52394163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15152241.4A Withdrawn EP2905542A1 (fr) 2014-02-11 2015-01-23 Refroidissement de composants de porte

Country Status (2)

Country Link
EP (1) EP2905542A1 (fr)
DE (1) DE102014202443A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023222387A1 (fr) * 2022-05-16 2023-11-23 Miele & Cie. Kg Dispositif de cuisson
BE1030531B1 (de) * 2022-05-17 2023-12-18 Miele & Cie Gareinrichtung, Einbaugargerätsystem, Haushaltsystem

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8912878U1 (de) 1989-10-31 1990-01-04 Bosch-Siemens Hausgeräte GmbH, 8000 München Backofen
GB2262601A (en) * 1991-12-19 1993-06-23 Stoves Ltd Cookers
EP0834701A1 (fr) * 1996-10-05 1998-04-08 Gaggenau Hausgeräte GmbH Four de cuisson avec une joint de porte à ventilation interne
DE29922260U1 (de) * 1999-12-18 2000-03-09 Rehau Ag & Co Dichtungssystem für die Abdichtung einer Backzelle, insbesondere für die Tür eines pyrolytisch reinigenden Ofens
US20060196495A1 (en) * 2005-03-02 2006-09-07 Samsung Electronics Co., Ltd. Oven
DE102006001248A1 (de) * 2006-01-10 2007-07-12 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerätetür und zugehöriges Bedienmodul
EP2333425A1 (fr) * 2009-12-09 2011-06-15 BSH Bosch und Siemens Hausgeräte GmbH Appareil ménager destiné à préparer des aliments doté d'un ventilateur et d'une lampe pour éclairer l'espace de cuisson
DE102010062579A1 (de) * 2010-12-08 2012-06-14 BSH Bosch und Siemens Hausgeräte GmbH Backofen sowie Backofentür

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2271515A1 (en) * 1973-10-23 1975-12-12 Cepem Self-cleaning baking-oven cooled by air-convection - has outlets to control device, and surrounding space
DE19504673C2 (de) * 1995-02-13 1998-04-30 Bosch Siemens Hausgeraete Einbaugargerät-Kühlung
DE102006005293A1 (de) * 2006-02-06 2007-08-09 BSH Bosch und Siemens Hausgeräte GmbH Backofen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8912878U1 (de) 1989-10-31 1990-01-04 Bosch-Siemens Hausgeräte GmbH, 8000 München Backofen
GB2262601A (en) * 1991-12-19 1993-06-23 Stoves Ltd Cookers
EP0834701A1 (fr) * 1996-10-05 1998-04-08 Gaggenau Hausgeräte GmbH Four de cuisson avec une joint de porte à ventilation interne
DE29922260U1 (de) * 1999-12-18 2000-03-09 Rehau Ag & Co Dichtungssystem für die Abdichtung einer Backzelle, insbesondere für die Tür eines pyrolytisch reinigenden Ofens
US20060196495A1 (en) * 2005-03-02 2006-09-07 Samsung Electronics Co., Ltd. Oven
DE102006001248A1 (de) * 2006-01-10 2007-07-12 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerätetür und zugehöriges Bedienmodul
EP2333425A1 (fr) * 2009-12-09 2011-06-15 BSH Bosch und Siemens Hausgeräte GmbH Appareil ménager destiné à préparer des aliments doté d'un ventilateur et d'une lampe pour éclairer l'espace de cuisson
DE102010062579A1 (de) * 2010-12-08 2012-06-14 BSH Bosch und Siemens Hausgeräte GmbH Backofen sowie Backofentür

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023222387A1 (fr) * 2022-05-16 2023-11-23 Miele & Cie. Kg Dispositif de cuisson
BE1030531B1 (de) * 2022-05-17 2023-12-18 Miele & Cie Gareinrichtung, Einbaugargerätsystem, Haushaltsystem

Also Published As

Publication number Publication date
DE102014202443A1 (de) 2015-08-13

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