EP2735804B1 - Household appliance door - Google Patents
Household appliance door Download PDFInfo
- Publication number
- EP2735804B1 EP2735804B1 EP13192485.4A EP13192485A EP2735804B1 EP 2735804 B1 EP2735804 B1 EP 2735804B1 EP 13192485 A EP13192485 A EP 13192485A EP 2735804 B1 EP2735804 B1 EP 2735804B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- appliance door
- domestic appliance
- fastening bracket
- region
- spacing
- 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.)
- Active
Links
- 239000000853 adhesive Substances 0.000 claims description 32
- 230000001070 adhesive effect Effects 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 22
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 description 27
- 238000010411 cooking Methods 0.000 description 9
- 238000004049 embossing Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGESĀ ; 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
- F24C15/045—Doors specially adapted for stoves or ranges with transparent panels being dismountable, e.g. giving access for cleaning
Definitions
- the invention relates to a household appliance door according to the preamble of claim 1.
- a basic structure of a household appliance door according to the preamble of claim 1 is made DE 10 2005 033 225 A1 known, where the bonding of the holding parts for the inner pane is explained in detail.
- the document DE 10 2005 033 225 A1 discloses a domestic appliance door element with a windshield, a carrier profile and connecting means for fixing the carrier profile on an inner side of the windshield.
- the DE 10 2005 037 020 A1 a device comprising a domestic appliance door support unit with at least two strip units, wherein the household appliance door support unit is merge to form a frame forming assembly unit.
- the disclosed EP 2 466 215 A1 a door for a Garofen with an outer pane and two associated support elements, which are each connected to a holding element for laying at least one door panel.
- EP2469179 A2 a door for a cooking oven with a fixing bracket, with a single spacer bar.
- Object of the present invention is to improve a known household appliance door to the effect of the inadmissibly high temperatures on the entire Outside of the outer pane to prevent.
- a simple and inexpensive construction of the connection should be achieved while a high strength can be realized.
- an adhesive region of a fastening angle of the appliance door is glued to the outer pane in the upper region of the appliance door and the at least one inner pane is mounted with a carrier profile of the appliance door and the carrier profile is fastened to an offset region of the attachment angle.
- the offset region is spaced apart from the adhesive region by means of at least two spacer webs of the fastening angle.
- It has at least one spacer web and preferably all the spacer webs on an embossing increasing the moment of inertia. This may extend over at least 70% of the length of the spacer webs and in particular extend over the entire length of the spacer webs. As a result, the rigidity of the offset region is improved relative to the adhesive region and, in addition, the material strength itself is increased due to the (cold) deformation of the material during the embossing process.
- the attachment of the carrier profile with the mounting bracket is detachable, preferably reversibly detachable, ie re-attachable.
- the carrier profile can be removed for service purposes and the possibility of cleaning is improved.
- the attachment angle can branch off from the adhesive area in different directions having two bends, each comprising at least one spacer web and the end portions are permanently interconnected to form the offset region, the permanent connection in particular a Verclinchung, riveting or welding, which a cohesive connection is achieved, which results in a high torsional strength.
- An alternative embodiment in which bends originating in a single-ply material of the offset region in two directions, which are connected to one another in a region which is used as an adhesive region, eg with a clinch, is considered to be equivalent.
- the offset region has a connecting portion for connection to the carrier profile and the material of the fastening angle is single-layered in the connecting portion, whereby the temperature entry into the mounting bracket is reduced.
- the interaction of high strength with low heat transfer can be optimized.
- the offset region comprises a connecting portion with a screw connection and around the screw are either circumferentially projecting in the direction of the carrier profile pot embossing or more local elevations arranged, which is further reduced due to the reduction of the contact surface of the mounting bracket to the support profile of the temperature transition.
- a bend on two spaced-apart spacer webs wherein at least a portion of the sheet material, which lies before the bending process of the spacer webs between the spacer webs, forms part of the adhesive area, so that material-saving increases both the adhesive area, as well as an advantageous air guide distance is realized.
- the portion of the permanent connection and / or the connecting portion is perpendicular above the adhesive area. This position of the connection section reduces the torques and thus the bending forces on the adhesive area and reduces the overall size of the construction.
- the space between the adhesive area and the offset area for forming a hot air duct has at least one upwardly extending outlet and at least one downwardly and / or laterally extending inlet, so that air is circulated around the spacer bars, thus removing the heat from the air Mounting bracket can be removed.
- each of the spacer webs has a width of at most 10 mm, in particular at most 7 mm, whereby the flowability with the air is improved.
- no sections or regions of the mounting bracket may be preferably provided for transmitting the carrier profile forces of the connecting portion to the adhesive area beyond said spacer webs, so that only the narrow spacer webs can absorb the forces that can be exerted by the inner pane or the inner panes together with their support structure.
- the mounting bracket is made of a stainless steel sheet, which is a material of low thermal conductivity and which has a high strength, which allows the use of small sheet thicknesses and web widths.
- Fig. 1 shows a designed as an oven cooking device 1, which includes a cooking appliance door 10 which can be opened with the handle 12 pivoting down.
- hinges 17 are provided at the two lower corners of the cooking appliance door, which at lower retaining profiles 70 (see Fig. 4 ) are fixed, which in turn are glued to the outer pane 15.
- FIG. 4 also shows that in the upper corners of the outer pane 15 mounting bracket 30 are glued.
- an upper mounting bracket 30 and a lower retaining profile 70 serve to support a carrier profile 50.
- the retaining profile 70 is inserted with the lower portion in corresponding guide portions of the retaining profile 70 and secured in the connection with a screw 47 against the mounting bracket 30.
- the support profiles 50 are used for storage and attachment of the inner pane 60 relative to the outer pane 15.
- a lower bottom panel 25 is attached to the lower support section 70, which forms a U-shaped slot together with the lower portion of the support section 50, in which the lower Edge of the inner pane 60 can be inserted.
- the upper end of the inner pane 60 bears against the carrier profile 60 and is held there with the top panel 20.
- a projection 24 of the top panel engages around the upper edge of the inner pane. In this case, the inner pane 60 is supported with sufficient clearance that expansions due to the heating of the inner pane can be accommodated.
- Fig. 5 shows the mounting bracket 30, which includes a flat base, which is glued as an adhesive region 32 with the outer pane 15. To ensure the defined adhesive gap a plurality of local embossments 16 are attached from the adhesive surface in the direction of the outer pane.
- a first bend is provided which points in the direction of the device interior at an angle of 90 Ā° to the adhesive region 32 and comprises two spacer webs 34 and 35.
- a second 90 Ā° bend 34b is provided such that an offset region 40 is formed, in which the material of the fastening angle 30 is parallel to the adhesive region 32.
- a further bend is provided on a 90 Ā° rotated position of the adhesive region 32, which comprises the spacer webs 36 and 37 and also with a further 90 Ā° bend has a portion 36b which is parallel to the adhesive region 32.
- These two mentioned parallel regions 34b and 36b are permanently connected to one another by means of a clinching 42.
- a Verclinchung is a material-forming positive connection of the two sheets, in which a part of the sheet 36b is deformed so that as an undercut part of the sheet 34b is included. Alternatively, compounds in the form of welds or rivets are advantageous at this point.
- the Verclinchung in the present embodiment of the invention since it can be integrated without a further processing step in the bending of the mounting bracket.
- the offset portion 40 which is formed from the sections 34b and 36b, relatively torsionally stiff relative to the adhesive region 32. In this sense take the Spacer webs 34 and 35 much of the forces of a load in the X direction (see Fig. 5 ) and the spacer webs 36 and 37 corresponding forces in the Z direction.
- the rigidity of the mounting bracket 30 is further increased by embossments 34a attached to each of the four spacer webs 34, 35, 36 and 37.
- the embossing depth is at least 100% of the material thickness and on the one hand causes an increase in the area moment of inertia of each one of the spacer webs and also an increase in the material strength due to the cold deformation during the embossing process. While these embossments increase the strength in the X and Z directions, their main task is to increase the webs under loads in the Y direction, since without them a buckling of the spacer webs can not be safely excluded.
- the amount of material of the bend 34b is minimized in that it is sufficient only to design the Verclinchung in her.
- the surface of the bend 36b is significantly larger and further includes the region of the screw 46 and the pot embossing 47.
- the support section 50 is detachably connected to the mounting bracket 30.
- each of the spacer webs 34 and 35 or 37 and 38 is a distance.
- a result of the above-described construction of the mounting bracket is to provide a high strength of the bearing of the support profile relative to the upper portion of the outer pane in the connection of the reduction of thermal bridges. This is effected by a plurality of properties.
- the carrier profile 50 is screwed to the connecting portion 44, wherein the screw has a lower heat transfer than, for example, a weld.
- the pot embossing 47 the contact surface of the section 36b with the carrier profile 50 is reduced.
- the material of the fastening angle in the region of the screw 46 is a single layer, which reduces the transmission of heat that has been introduced via the surface contact in the area 36b.
- the heat transfer is reduced by the spacer webs 34 to 37, which are optimized so that with a minimum total material cross-section, a high rigidity of the offset region 40 is realized relative to the adhesive region 32.
- the majority of thin spacer webs provides improved convection cooling than non-breakthrough material surfaces.
- an open bottom side is provided, via which air can flow according to the arrow 31. This air comes through the slots 52 of the carrier profile 50 from the washer area. Furthermore, air can flow in the direction 38 from the intermediate disk area via the spacing of the webs 36 and 37. Due to the heat convection, the heated air flows through the outlet 33 upwards into the area below the top panel 20 and can be discharged via the ventilation slots 22 upwards. If required, the convection that results automatically can be supported by a fan-assisted forced air flow.
- FIGS. 5 and 6 also show a fluted passageway 29 through the gluing area 32 needed as a positioning reference for automated manufacturing, and by using two further reference areas, the gluing attachment angle can be accurately positioned.
- the mounting bracket is made of a one-piece sheet metal material.
- a stainless steel is used, in particular 1.4016 or 1.4301, as these materials on the one hand have a reduced thermal conductivity than other steel sheets.
- a sheet thicknesses is used.
- a sheet of 1 mm thickness is used.
- the carrier profile 50 is preferably designed such that it can carry a plurality of discs.
- the carrier profile 50 has corresponding receptacles. These include a support surface 54, on which the weight of the washer is supported in the Z direction.
- the guide webs 56 For guiding in the Y direction serve the guide webs 56, between which the disc is inserted and for the leadership in the X direction of the body of the carrier profile 50 itself serves.
- Corresponding guide means for the washer are integrated in the top panel 20. Further shows Fig. 3 Openings 58 in which silicone plugs are inserted to improve the storage of the inner pane.
- top refers to the position of the corresponding component with the cooking appliance door closed.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Cookers (AREA)
Description
Die Erfindung betrifft eine HausgerƤtetĆ¼r nach dem Oberbegriff des Anspruchs 1.The invention relates to a household appliance door according to the preamble of
Bei TĆ¼ren von GargerƤten ist es von hoher Wichtigkeit, dass ihre Verglasung die in der GargerƤtemuffel befindliche WƤrme gut nach auĆen isoliert. Dies wird durch eine Mehrfachverglasung erreicht, wobei der zwischen den Scheiben befindliche Luftspalt bspw. durch Konvektion belĆ¼ftet wird und so wird die Temperatur der AuĆenscheibe im Bereich des Luftspalts effektiv reduziert. Aus GrĆ¼nden der Festigkeit werden hƤufig TrƤgerprofile aus einem metallischen Werkstoff verwendet, um die Innenscheibe und die Mittelscheibe(n) gegen die AuĆenscheibe zu lagern. Da Metall ein guter WƤrmeleiter ist, wird die WƤrme innerhalb des Metalls in Richtung der AuĆenscheibe geleitet und an den Punkten, an dem das TrƤgerprofil oder ein Klebeteil mit der AuĆenscheibe verklebt ist, kƶnnen sich lokale heiĆe Punkte ergeben, an denen sich ein Anwender auch dann verbrennen kann, wenn die Temperatur der AuĆenscheibe als Ganzes einen kritischen Grenzwert nicht Ć¼berschreitet.In the case of cooking appliance doors, it is very important that their glazing isolates the heat in the cooking appliance muffle well. This is achieved by multiple glazing, wherein the air gap located between the panes is ventilated, for example by convection, and thus the temperature of the outer pane in the region of the air gap is effectively reduced. For reasons of strength, carrier profiles of a metallic material are often used to support the inner pane and the center pane (s) against the outer pane. Since metal is a good conductor of heat, the heat is conducted inside the metal in the direction of the outer pane and at the points where the carrier profile or an adhesive part is glued to the outer pane, local hot spots can result, a user even then can burn if the temperature of the outer pane as a whole does not exceed a critical limit.
Ein prinzipieller Aufbau einer HausgerƤtetĆ¼r gemĆ¤Ć dem Oberbegriff des Anspruchs 1 ist aus
Das Dokument
Ferner offenbart die
AuĆerdem offenbart die
The
Further, the
In addition, the disclosed
Ferner offenbart die
Aufgabe der vorliegenden Erfindung ist es, eine bekannte HausgerƤtetĆ¼r dahingehend zu verbessern, die Entstehung von unzulƤssig hohen Temperaturen auf der gesamten AuĆenseite der AuĆenscheibe zu verhindern. Dabei soll ein einfacher und kostengĆ¼nstiger Aufbau der Verbindung erreicht werden und dabei eine hohe Festigkeit realisiert werden.Object of the present invention is to improve a known household appliance door to the effect of the inadmissibly high temperatures on the entire Outside of the outer pane to prevent. In this case, a simple and inexpensive construction of the connection should be achieved while a high strength can be realized.
Diese Aufgabe wird mit den Merkmalen des Anspruchs 1 gelƶst. Insbesondere wurde bei der Lƶsung der Aufgabe erkannt, dass aufgrund der Eigenschaft von WƤrme nach oben zu steigen, gerade bei den Befestigungselementen im oberen Bereich das genannte WƤrmeproblem auftritt und aus diesem Grund wird mit der nachfolgend erlƤuterten Struktur der Aufbau in diesem Bereich verbessert.This object is achieved with the features of
Bei einer HausgerƤtetĆ¼r mit einer AuĆenscheibe und zumindest einer Innenscheibe ist im oberen Bereich der HausgerƤtetĆ¼r ein Klebebereich eines Befestigungswinkels der HausgerƤtetĆ¼r mit der AuĆenscheibe verklebt und die zumindest eine Innenscheibe ist mit einem TrƤgerprofil der HausgerƤtetĆ¼r gelagert und das TrƤgerprofil ist an einem Versatzbereich des Befestigungswinkels befestigt. Dabei ist der Versatzbereich mit Hilfe von zumindest zwei Abstandsstegen des Befestigungswinkels gegenĆ¼ber dem Klebebereich beabstandet. Durch diese Mehrzahl der Abstandsstege kann das Material, welches fĆ¼r den Abstand des Versatzbereichs sorgt, besser mit Luft umstrƶmt werden und somit kann WƤrme die Ć¼ber den Versatzbereich auf die Stege geleitet wird besser abgeleitet werden, als dies bei einem geschlossenen Profil mƶglich wƤre. Auch ergibt sich durch mehrere Abstandsstege die Mƶglichkeit, sie derartig auszurichten und zu dimensionieren, dass eine mƶglichst hohe Steifigkeit des Versatzbereichs relativ zur KlebeflƤche bei einem reduzierten Materialeinsatz ermƶglicht wird. Diese Reduzierung des Materials reduziert die WƤrmebrĆ¼cken.In a household appliance door with an outer pane and at least one inner pane, an adhesive region of a fastening angle of the appliance door is glued to the outer pane in the upper region of the appliance door and the at least one inner pane is mounted with a carrier profile of the appliance door and the carrier profile is fastened to an offset region of the attachment angle. In this case, the offset region is spaced apart from the adhesive region by means of at least two spacer webs of the fastening angle. By means of this plurality of spacer webs, the material which ensures the distance of the offset region can be better flown around with air and thus heat which is conducted via the offset region onto the webs can be better dissipated than would be possible with a closed profile. Also, by means of a plurality of spacer webs, it is possible to align and dimension them in such a way that the highest possible rigidity of the offset region relative to the adhesive surface is made possible with a reduced use of material. This reduction of material reduces the thermal bridges.
Es weist zumindest ein Abstandssteg und bevorzugt alle Abstandsstege eine das FlƤchentrƤgheitsmoment erhƶhende PrƤgung auf. Diese kann sich Ć¼ber mindestens 70% der LƤnge der Abstandsstege erstrecken und sich insbesondere Ć¼ber die gesamte LƤnge der Abstandsstege erstrecken. Dadurch wird die Steifigkeit des Versatzbereichs relativ zu dem Klebebereich verbessert und zusƤtzlich wird aufgrund der (Kalt-)Verformung des Materials wƤhrend des PrƤgevorgangs auch die Materialfestigkeit selbst erhƶht.It has at least one spacer web and preferably all the spacer webs on an embossing increasing the moment of inertia. This may extend over at least 70% of the length of the spacer webs and in particular extend over the entire length of the spacer webs. As a result, the rigidity of the offset region is improved relative to the adhesive region and, in addition, the material strength itself is increased due to the (cold) deformation of the material during the embossing process.
Insbesondere ist dabei die Befestigung von dem TrƤgerprofil mit dem Befestigungswinkel lƶsbar, bevorzugt reversibel lƶsbar, d.h. wieder befestigbar. Hierdurch kann fĆ¼r Servicezwecke das TrƤgerprofil entnommen werden und die Mƶglichkeit der Reinigung wird verbessert.In particular, the attachment of the carrier profile with the mounting bracket is detachable, preferably reversibly detachable, ie re-attachable. As a result, the carrier profile can be removed for service purposes and the possibility of cleaning is improved.
WeiterfĆ¼hrend kann der Befestigungswinkel von dem Klebebereich ausgehend in unterschiedliche Richtungen abzweigend zwei Abwinklungen aufweisen, die jeweils zumindest einen Abstandssteg umfassen und deren Endabschnitte zur Bildung des Versatzbereichs dauerhaft miteinander verbunden sind, wobei die dauerhafte Verbindung insbesondere eine Verclinchung, eine Vernietung oder eine VerschweiĆung aufweist, wodurch eine stoffschlĆ¼ssige Verbindung erreicht wird, die eine hohe Verwindungsfestigkeit ergibt. Eine alternative AusfĆ¼hrungsform, bei der von einem einlagigen Material des Versatzbereichs in zwei Richtungen Abwinklungen ausgehen, die in einem Bereich, der als Klebebereich genutzt wird, mit z.B. einer Verclinchung miteinander verbunden sind, wird als Ƥquivalent angesehen.
Insbesondere weist der Versatzbereich einen Verbindungsabschnitt zur Verbindung mit dem TrƤgerprofil auf und das Material des Befestigungswinkels ist im Verbindungsabschnitt einlagig, wodurch der Temperatureintrag in den Befestigungswinkel reduziert wird. Vor allem in der Kombination von Abschnitten doppelter MaterialstƤrke zur Verbesserung der Steifigkeit und einem einlagigen Abschnitt kann das Zusammenspiel von hoher Festigkeit mit geringem WƤrmeĆ¼bergang optimiert werden.Furthermore, the attachment angle can branch off from the adhesive area in different directions having two bends, each comprising at least one spacer web and the end portions are permanently interconnected to form the offset region, the permanent connection in particular a Verclinchung, riveting or welding, which a cohesive connection is achieved, which results in a high torsional strength. An alternative embodiment in which bends originating in a single-ply material of the offset region in two directions, which are connected to one another in a region which is used as an adhesive region, eg with a clinch, is considered to be equivalent.
In particular, the offset region has a connecting portion for connection to the carrier profile and the material of the fastening angle is single-layered in the connecting portion, whereby the temperature entry into the mounting bracket is reduced. Especially in the combination of sections of double material thickness to improve the rigidity and a single-layer section, the interaction of high strength with low heat transfer can be optimized.
Vorteilhafter Weise umfasst der Versatzbereich einen Verbindungsabschnitt mit einer Verschraubung und um die Verschraubung sind entweder umlaufend eine in Richtung des TrƤgerprofils vorstehende TopfprƤgung oder mehrere lokale Erhƶhungen angeordnet, wodurch aufgrund der Reduzierung der KontaktflƤche von dem Befestigungswinkel zu dem TrƤgerprofil der TemperaturĆ¼bergang weiter reduziert wird. Die TopfprƤgung oder die, die Verschraubung umgebenden Erhƶhungen bewirken, dass auf die Verschraubung bevorzugt axiale HaltekrƤfte auftreten.Advantageously, the offset region comprises a connecting portion with a screw connection and around the screw are either circumferentially projecting in the direction of the carrier profile pot embossing or more local elevations arranged, which is further reduced due to the reduction of the contact surface of the mounting bracket to the support profile of the temperature transition. The pot embossing or the increases surrounding the screwing effect that axial holding forces preferably occur on the screw connection.
Insbesondere weist eine Abwinklung zwei voneinander beabstandete Abstandsstege auf, wobei zumindest ein Teil des Blechmaterials, welches vor dem Biegevorgang der Abstandsstege zwischen den Abstandsstegen liegt, einen Teil des Klebebereichs bildet, so dass materialsparend sowohl der Klebebereich vergrƶĆert, wie auch ein fĆ¼r die LuftfĆ¼hrung vorteilhafter Abstand realisiert wird.In particular, a bend on two spaced-apart spacer webs, wherein at least a portion of the sheet material, which lies before the bending process of the spacer webs between the spacer webs, forms part of the adhesive area, so that material-saving increases both the adhesive area, as well as an advantageous air guide distance is realized.
Insbesondere liegt der Abschnitt der dauerhaften Verbindung und/oder der Verbindungsabschnitt lotrecht Ć¼ber dem Klebebereich. Durch diese Lage des Verbindungabschnitts werden die Drehmomente und somit die BiegekrƤfte auf den Klebebereich reduziert und die GesamtbaugrƶĆe wird verringert.In particular, the portion of the permanent connection and / or the connecting portion is perpendicular above the adhesive area. This position of the connection section reduces the torques and thus the bending forces on the adhesive area and reduces the overall size of the construction.
WeiterfĆ¼hrend weist der Zwischenraum zwischen dem Klebebereich und dem Versatzbereich zur Bildung eines Warmluftlaufs zumindest einen sich nach oben erstreckenden Auslass und zumindest einen nach unten und/oder zu den Seiten erstreckenden Einlass auf, so dass die Abstandsstege mit Luft umstrƶmt werden und so die WƤrme aus dem Befestigungswinkel abgefĆ¼hrt werden kann.In addition, the space between the adhesive area and the offset area for forming a hot air duct has at least one upwardly extending outlet and at least one downwardly and / or laterally extending inlet, so that air is circulated around the spacer bars, thus removing the heat from the air Mounting bracket can be removed.
Bevorzugt weist jeder der Abstandsstege eine Breite von hƶchstens 10 mm auf, insbesondere hƶchstens 7 mm, wodurch die Umstrƶmbarkeit mit der Luft verbessert wird.Preferably, each of the spacer webs has a width of at most 10 mm, in particular at most 7 mm, whereby the flowability with the air is improved.
Auch kƶnnen bevorzugt zur Ćbertragung der TrƤgerprofilkrƤfte des Verbindungsabschnitts auf den Klebebereich Ć¼ber die genannten Abstandsstege hinausgehend keine Abschnitte oder Bereiche des Befestigungswinkels vorgesehen sein, so dass ausschlieĆlich die schmalen Abstandsstege die KrƤfte aufnehmen kƶnnen, die von der Innenscheibe oder den Innenscheiben zusammen mit deren Haltekonstruktion ausgeĆ¼bt werden kƶnnen.Also, no sections or regions of the mounting bracket may be preferably provided for transmitting the carrier profile forces of the connecting portion to the adhesive area beyond said spacer webs, so that only the narrow spacer webs can absorb the forces that can be exerted by the inner pane or the inner panes together with their support structure.
WeiterfĆ¼hrend ist der Befestigungswinkel aus einem Edelstahlblech hergestellt ist, was ein Material geringer WƤrmeleitfƤhigkeit ist und das eine hohe Festigkeit aufweist, die die Verwendung geringer Blechdicken und Stegbreiten erlaubt.Further, the mounting bracket is made of a stainless steel sheet, which is a material of low thermal conductivity and which has a high strength, which allows the use of small sheet thicknesses and web widths.
Nachfolgend wird eine bevorzugte AusfĆ¼hrungsform der Erfindung anhand von Figuren beschrieben. Es zeigen:
- Fig. 1
- eine frontale Ansicht eines GargerƤts,
- Fig. 2
- eine perspektivische Ansicht einer ausgebauten GargerƤtetĆ¼r von hinten mit montierter Innenscheibe,
- Fig. 3
- die Ansicht gemƤĆ
Fig. 2 nach Entnahme der Topblende, der Bodenblende, und der Innenscheibe, - Fig.4
- die Ansicht gemƤĆ
Fig. 3 nach Entnahme der TrƤgerprofile, - Fig. 5
- eine Detailansicht des Befestigungswinkels und
- Fig. 6
- einen vertikal ausgerichteten Schnitt durch die GargerƤtetĆ¼r im Bereich des Befestigungswinkels.
- Fig. 1
- a frontal view of a cooking appliance,
- Fig. 2
- a perspective view of a dismantled GargerƤtetĆ¼r from behind with mounted inner pane,
- Fig. 3
- the view according to
Fig. 2 after removal of the top panel, the bottom panel, and the inner panel, - Figure 4
- the view according to
Fig. 3 after removal of the carrier profiles, - Fig. 5
- a detailed view of the mounting bracket and
- Fig. 6
- a vertically oriented section through the cooking appliance door in the region of the mounting bracket.
Aus
Das obere Ende der Innenscheibe 60 liegt an dem TrƤgerprofil 60 an und wird dort mit der Topblende 20 gehalten. Diese umfasst FĆ¼hrungsvorsprĆ¼nge und Haltehaken zur Befestigung an dem TrƤgerprofil. Ein Ćberstand 24 der Topblende umgreift die obere Kante der Innenscheibe. Dabei ist die Innenscheibe 60 mit ausreichend Spiel gelagert, dass Ausdehnungen aufgrund der ErwƤrmung der Innenscheibe aufgenommen werden kƶnnen.The upper end of the
Zum Reinigen des Zwischenraums der Scheiben wird zuerst die Topblende entfernt, indem vom Anwender entsprechende Verrastungen gelƶst werden und im Anschluss kann die Innenscheibe entnommen werden.To clean the gap between the panes, first remove the top bezel by releasing the corresponding notches from the user, and then remove the inside pan.
Da die Abwinklungen im genannten 90Ā° Winkel zueinander von dem Klebebereich ausgehen, ist der Versatzbereich 40, der aus den Abschnitten 34b und 36b gebildet wird, relativ verwindungssteif gegenĆ¼ber dem Klebebereich 32. In diesem Sinn nehmen die Abstandsstege 34 und 35 ein GroĆteil der KrƤfte einer Belastung in X-Richtung (siehe
Die Steifigkeit des Befestigungswinkels 30 wird ferner durch PrƤgungen 34a erhƶht, die an jedem der vier Abstandsstege 34, 35, 36 und 37 angebracht sind. Die PrƤgungstiefe betrƤgt mindestens 100% der MaterialstƤrke und bewirkt zum einen eine Erhƶhung des FlƤchentrƤgheitsmoments eines jeden einzelnen der Abstandsstege und ferner eine Erhƶhung der Materialfestigkeit aufgrund der Kaltverformung wƤhrend des PrƤgevorgangs. WƤhrend diese PrƤgungen die Festigkeit in X- und Z-Richtungen erhƶhen, ist ihre Hauptaufgabe die Stege bei Belastungen in Y-Richtung zu erhƶhen, da ohne sie eine Knickung der Abstandsstege nicht sicher ausgeschlossen werden kann. Da die Breite der vier Abstandsstege zweimal 5mm und zweimal 6mm betragen, ergibt sich bei einer Blechdicke von 0,8 mm eine GesamtquerschnittsflƤche der WƤrmeleitung durch den Befestigungswinkel 30 von 17,6mm2. Wesentliche Vorteile treten insbesondere auf, wenn der Gesamtmaterialquerschnitt weniger als 30 mm2 und bevorzugt weniger als 22 mm2 betrƤgt. ZusƤtzlich ist dabei die TragfƤhigkeit des Befestigungswinkels sehr hoch, so dass fĆ¼r die Befestigung der Innenscheibe oder Innenscheiben nur vier Teile mit der AuĆenscheibe verklebt werden mĆ¼ssen, wƤhrend bei der oben zitierten AusfĆ¼hrungsform des Standes der Technik hierfĆ¼r sechs Klebeteile notwendig waren.The rigidity of the mounting
Die Materialmenge der Abwinklung 34b ist dahingehend minimiert, dass sie nur ausreicht, in ihr die Verclinchung auszugestalten. Die FlƤche der Abwinklung 36b ist hingegen deutlich grƶĆer und umfasst ferner den Bereich der Verschraubung 46 und die TopfprƤgung 47. Ćber die Verschraubung 46 ist das TrƤgerprofil 50 lƶsbar mit dem Befestigungswinkel 30 verbunden. So kann das Befestigungsprofil bei BeschƤdigungen und zu Servicezwecken entfernt und ausgetauscht werden.The amount of material of the
Zwischen jeweils den Abstandsstegen 34 und 35 bzw. 37 und 38 liegt ein Abstand. Das Material, welches bei dem Blech des Befestigungswinkels 30 vor seinem Biegen in diesem Abstand gelegen hat, formt einen Teil des Klebebereichs, der dadurch mit einfachen Mitteln vergrƶĆert wird und so kann die Wirkung der Verklebung verbessert werden.Between each of the
Ein Ergebnis des vorstehend beschriebenen Aufbaus des Befestigungswinkels liegt in der Bereitstellung einer hohen Festigkeit der Lagerung des TrƤgerprofils relativ zum oberen Bereich der AuĆenscheibe in der Verbindung der Reduzierung von WƤrmebrĆ¼cken. Dies wird durch eine Mehrzahl von Eigenschaften bewirkt. ZunƤchst ist das TrƤgerprofil 50 mit dem Verbindungsabschnitt 44 verschraubt, wobei die Verschraubung einen geringeren WƤrmeĆ¼bergang als eine z.B. VerschweiĆung aufweist. Ferner wird aufgrund der TopfprƤgung 47 die AnlageflƤche des Abschnitts 36b mit dem TrƤgerprofil 50 reduziert. Des Weiteren liegt das Material des Befestigungswinkels im Bereich der Verschraubung 46 einlagig, was die Weiterleitung von WƤrme, die Ć¼ber den OberflƤchenkontakt in den Bereich 36b eingebracht wurde, reduziert. Sehr wesentlich wird die WƤrmeĆ¼bertragung durch die Abstandsstege 34 bis 37 reduziert, die dahingehend optimiert sind, dass bei einem minimalen Gesamtmaterialquerschnitt eine hohe Steifigkeit von dem Versatzbereich 40 relativ zu dem Klebebereich 32 realisiert wird.A result of the above-described construction of the mounting bracket is to provide a high strength of the bearing of the support profile relative to the upper portion of the outer pane in the connection of the reduction of thermal bridges. This is effected by a plurality of properties. First, the
Zudem bietet die Mehrzahl dĆ¼nner Abstandsstege eine verbesserte KĆ¼hlung durch Konvektion als durchbruchsfreie MaterialflƤchen. So ergibt sich fĆ¼r den Quader, der zwischen dem Versatzbereich 40 und dem Klebebereich 32 aufgespannt wird, eine unten gelegene offene Seite, Ć¼ber die Luft gemĆ¤Ć dem Pfeil 31 einstrƶmen kann. Diese Luft kommt durch die Schlitze 52 des TrƤgerprofils 50 aus dem Zwischenscheibenbereichs. Ferner kann Ć¼ber den Abstand der Stege 36 und 37 Luft in die Richtung 38 aus dem Zwischenscheibenbereich einstrƶmen. Aufgrund der WƤrmekonvektion strƶmt die erwƤrmte Luft durch den Auslass 33 nach oben in den Bereich unterhalb der Topblende 20 und kann Ć¼ber deren LĆ¼ftungsschlitze 22 nach oben abgefĆ¼hrt werden. Bei Bedarf kann die sich automatisch ergebende Konvektion durch eine ventilatorgestĆ¼tzte ZwangsluftfĆ¼hrung unterstĆ¼tzt werden.In addition, the majority of thin spacer webs provides improved convection cooling than non-breakthrough material surfaces. Thus, for the cuboid, which is spanned between the offset
Der Befestigungswinkel ist aus einem einstĆ¼ckigen Blechmaterial hergestellt. Dabei wird ein Edelstahl verwendet, wie insbesondere 1.4016 oder 1.4301, da diese Werkstoffe zum einen eine verringerte WƤrmeleitzahl als sonstige Stahlbleche aufweisen. Ferner ergibt sich aufgrund ihrer hohen Festigkeit die Mƶglichkeit geringere Blechdicken zu verwenden. Bevorzugt wird ein Blech von 1 mm Dicke verwendet.The mounting bracket is made of a one-piece sheet metal material. In this case, a stainless steel is used, in particular 1.4016 or 1.4301, as these materials on the one hand have a reduced thermal conductivity than other steel sheets. Furthermore, due to their high strength, it is possible to use smaller sheet thicknesses. Preferably, a sheet of 1 mm thickness is used.
WƤhrend vorstehend eine AusfĆ¼hrungsform mit zwei Scheiben, nƤmlich der AuĆenscheibe 15 und der Innenscheibe 60 beschrieben wurde, eignet sich die erfindungsgemƤĆe Vorrichtung auch fĆ¼r eine grƶĆere Scheibenanzahl. Dabei wird bevorzugt das TrƤgerprofil 50 derart ausgestaltet, dass es mehrere Scheiben tragen kann. FĆ¼r die Verwendung einer Zwischenscheibe (nicht dargestellt), die zwischen der AuĆenscheibe 15 und der Innenscheibe 60 angeordnet ist, weist das TrƤgerprofil 50 entsprechende Aufnahmen auf. Diese umfassen eine AuflageflƤche 54, auf die das Gewicht der Zwischenscheibe sich in Z-Richtung abstĆ¼tzt. Zur FĆ¼hrung in Y-Richtung dienen die FĆ¼hrungsstege 56, zwischen denen die Scheibe steckt und fĆ¼r die FĆ¼hrung in die X-Richtung dient der Kƶrper des TrƤgerprofils 50 selbst. Entsprechende FĆ¼hrungsmittel fĆ¼r die Zwischenscheibe sind in der Topblende 20 integriert. Ferner zeigt
Die vorstehend verwendeten Bezeichnungen "oben", "unten" oder "in Richtung des GerƤteinneren" oder dergleichen, beziehen sich die Lage der entsprechenden Komponente bei geschlossener GargerƤtetĆ¼r.The terms "top", "bottom" or "towards the device interior" or the like used above refer to the position of the corresponding component with the cooking appliance door closed.
Claims (10)
- Domestic appliance door (10) with an outer disc (15) and at least one inner disc (60), wherein an adhesive region (32) of a fastening bracket (30) of the domestic appliance door (10) is adhered to the outer disc (15) and the at least one inner disc (60) is mounted with a supporting profile (50) of the domestic appliance door (10) and the supporting profile (50) is fastened to an offset region (40) of the fastening bracket (30), wherein the offset region (40) is spaced apart from the adhesive region (32) with the aid of at least two spacing webs (34, 35, 36, 37) of the fastening bracket (30), characterised in that at least one spacing web (34, 35, 36, 37) and preferably all spacing webs have an imprint (34a) which raises the area moment of inertia, extending over at least 70% of the length of the spacing web and in particular extending over the entire length of the spacing web.
- Domestic appliance door (10) according to claim 1, wherein the fastening of the supporting profile (50) to the fastening bracket (30) can be released.
- Domestic appliance door according to one of the preceding claims, wherein the fastening bracket (30), starting from the adhesive region (32), has two bends branching in different directions, each of which comprising at least one spacing web and the end sections (34b, 36b) of which being permanently interconnected to form the offset region (40), wherein the permanent connection (42) in particular comprises a clinching, a riveting or a welding.
- Domestic appliance door according to one of the preceding claims, wherein the offset region (40) has a connecting section (44) for connecting to the supporting profile (50) and the material of the fastening bracket (30) in the connecting section (44) is single-layered.
- Domestic appliance door according to one of the preceding claims, wherein the offset region (40) comprises a connecting section (44) with a screw connection (46) and either a pot-shaped imprint (47) protruding in the direction of the supporting profile or a plurality of local elevations are arranged circumferentially around the screw connection (46).
- Domestic appliance door according to one of claims 3 to 5, wherein at least one bend has two spacing webs (34, 35; 36, 37) spaced apart from one another, wherein at least some of the sheet material (39) lying between the spacing webs (34, 35; 36, 37) forms a part of the adhesive region (32).
- Domestic appliance door according to one of claims 4 to 6, wherein the section of the permanent connection (42) and/or the connecting section (44) lie vertically above the adhesive region (32).
- Domestic appliance door according to one of the preceding claims, wherein each of the spacing webs (34, 35; 36, 37) has a width of a maximum of 10 mm.
- Domestic appliance door according to one of claims 3 to 8, wherein no sections or regions of the fastening bracket (30) are provided in order to transfer the supporting profile forces of the connecting section (44) to the adhesive region (32) beyond said spacing webs (34, 35; 36, 37).
- Domestic appliance according to one of the preceding claims, wherein the fastening bracket (30) is manufactured from a stainless steel sheet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL13192485T PL2735804T3 (en) | 2012-11-27 | 2013-11-12 | Household appliance door |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012221622.7A DE102012221622A1 (en) | 2012-11-27 | 2012-11-27 | House door |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2735804A2 EP2735804A2 (en) | 2014-05-28 |
EP2735804A3 EP2735804A3 (en) | 2017-01-11 |
EP2735804B1 true EP2735804B1 (en) | 2018-05-30 |
Family
ID=49554141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13192485.4A Active EP2735804B1 (en) | 2012-11-27 | 2013-11-12 | Household appliance door |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2735804B1 (en) |
DE (1) | DE102012221622A1 (en) |
PL (1) | PL2735804T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD1005769S1 (en) | 2021-09-08 | 2023-11-28 | Newage Products Inc. | Oven |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3828763A (en) * | 1973-05-14 | 1974-08-13 | Gen Electric | Oven door construction with front glass panel |
EP0992740B1 (en) * | 1998-10-07 | 2002-01-09 | POSA S.p.A. | Elastomeric sealing gasket for cooking ovens |
EP2466215A1 (en) * | 1999-08-31 | 2012-06-20 | Electrolux Rothenburg GmbH Factory and Development | Door for a device, in particular an oven, with panel support for several panels |
DE102005037020A1 (en) * | 2004-09-09 | 2006-03-16 | BSH Bosch und Siemens HausgerƤte GmbH | Household appliance door, has door carrier unit merged to mounting unit, where carrier unit includes beading units that are connected to hinge by plug and socket connection and fastening unit for form-fit connection with door front unit |
DE102005033225B4 (en) | 2005-07-15 | 2021-09-30 | BSH HausgerƤte GmbH | Domestic appliance door element and oven door with such a domestic appliance door element |
DE102010063936A1 (en) * | 2010-12-22 | 2012-06-28 | BSH Bosch und Siemens HausgerƤte GmbH | Household appliance door |
-
2012
- 2012-11-27 DE DE102012221622.7A patent/DE102012221622A1/en not_active Withdrawn
-
2013
- 2013-11-12 EP EP13192485.4A patent/EP2735804B1/en active Active
- 2013-11-12 PL PL13192485T patent/PL2735804T3/en unknown
Non-Patent Citations (1)
Title |
---|
None * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD1005769S1 (en) | 2021-09-08 | 2023-11-28 | Newage Products Inc. | Oven |
Also Published As
Publication number | Publication date |
---|---|
DE102012221622A1 (en) | 2014-05-28 |
EP2735804A2 (en) | 2014-05-28 |
EP2735804A3 (en) | 2017-01-11 |
PL2735804T3 (en) | 2018-11-30 |
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