EP2778526A2 - Portes vitrées d'un dispositif de chauffage et dispositif de chauffage équipé de celles-ci - Google Patents

Portes vitrées d'un dispositif de chauffage et dispositif de chauffage équipé de celles-ci Download PDF

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Publication number
EP2778526A2
EP2778526A2 EP14159131.3A EP14159131A EP2778526A2 EP 2778526 A2 EP2778526 A2 EP 2778526A2 EP 14159131 A EP14159131 A EP 14159131A EP 2778526 A2 EP2778526 A2 EP 2778526A2
Authority
EP
European Patent Office
Prior art keywords
viewing window
coupling element
door according
glazed door
connection
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
EP14159131.3A
Other languages
German (de)
English (en)
Other versions
EP2778526B1 (fr
EP2778526A3 (fr
Inventor
Karl Stefan Riener
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.)
Individual
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Individual
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Filing date
Publication date
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Publication of EP2778526A2 publication Critical patent/EP2778526A2/fr
Publication of EP2778526A3 publication Critical patent/EP2778526A3/fr
Application granted granted Critical
Publication of EP2778526B1 publication Critical patent/EP2778526B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M7/00—Doors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B13/00—Details solely applicable to stoves or ranges burning solid fuels 
    • F24B13/004—Doors specially adapted for stoves or ranges

Definitions

  • the invention relates to a glazed door of a heating device for combustion of an energy carrier, in particular of biomass, as well as a heating device equipped with this glazing door, as indicated in claims 1 and 15.
  • adhesions are known in which a glass pane is connected to a frame by means of an elastic, temperature-resistant adhesive.
  • a sufficiently temperature-resistant adhesive is used, which is suitable to withstand the development of heat from the interior of the furnace.
  • terminal strips are used for fixing glass sheets in oven doors, with which terminal strips a positive or non-positive connection between furnace door and glass is constructed.
  • a disadvantage of the known glued embodiments is that due to the thermal expansions and the consequent relative movement between the individual elements of which an oven door is constructed, the adhesive can gradually lose its adhesive strength or adhesion resistance, whereby the components glued together can become loose or could even be solved.
  • the different thermal expansions of the different materials are problematic, since high mechanical stresses can occur in the glass, which can lead to breakage of the glass.
  • the present invention has for its object to compensate for this potential quality and security disadvantage in a glazed door for a heater or in a heater equipped with it and to eliminate and ensure that even after many years of use, a reliable connection between the on and glued Element and the supporting frame or support element is guaranteed.
  • Another object of the invention is to provide a corresponding heating device.
  • a disc securing device is formed in the generic glazed door for a heater, which has at least one mechanical coupling element between the support member and the lens, which coupling element extends like a bridge between the support member and the lens, wherein the coupling element is rigidly secured to the support member or on the window and is relatively movably connected at the other end with the carrier element or with the lens.
  • the coupling element is rigidly secured to the carrier element and to the viewing window in each case and is designed to be elastic or variable in length.
  • An advantage of the embodiment of the invention is that the conditions are created by the possibility of compensating for relative displacements in the coupling element that the coupling element preferably by means of a relatively unyielding or high-strength, temperature-resistant adhesive, which are easily used for selective bonding glass visors can and its high holding power is particularly useful, can be glued directly to the lens.
  • a particular advantage of the embodiment of the invention lies in the fact that the splices in the overlapping zones, in which the lens is glued to the support member, not on possible signs of aging or damage must be checked because it is ensured by the coupling element that the lens can not solve the support element, and therefore no safety defects, or defects in the functionality are expected.
  • the lens receiving or retaining the lens from another material such as aluminum, iron or a metallic Alloy
  • another material such as aluminum, iron or a metallic Alloy
  • other materials such as plastics and composites are conceivable.
  • the intermediate material for connection and also for sealing in the overlapping zone is formed between the carrier element and the viewing window. It is advantageous that it can be ensured by the additional sealing effect of the intermediate material that no flue gases can flow between the lens and the support member of the glazed door.
  • the intermediate material is formed by an elastic adhesive and / or an elastic silicone. It is advantageous that is ensured by the execution of the intermediate material as an elastic adhesive or silicone, that relative movements between the materials to be joined can be absorbed or compensated and thus there can be no critical tension due to the different thermal expansion of the glass or the support element ,
  • the intermediate material is designed as a double-sided adhesive strip.
  • said double-sided adhesive strip can be easily applied to the frame and the glass or lens to be fixed can be easily inserted into the frame.
  • no curing time has to be included in the production process, so that the pane connected to the frame can be further processed immediately or relatively without delay.
  • the viewing window is designed as a transparent or semi-transparent glass pane of mineral glass. Especially advantageous It is ensured that due to the transparency of the glass ensures that there is a clear view of lying behind the disc elements or processes, especially concerning the combustion process in a heater.
  • the viewing window has at least a first, central section of high transparency and has at least one opaque or semi-transparent section, which is preferably provided in the peripheral region of the viewing window.
  • the advantage here is that by using a partially opaque or slightly translucent glass, or by the partial printing of a glass, can be achieved that optically disadvantageous functional elements of the heater remain hidden, the specified optical facing is an appealing design element and an optimal Cost / benefit ratio offers.
  • the viewing window is composed of at least two disc parts made of different materials and / or different transparency properties. It is advantageous that the combination of different materials with different properties an attractive visual effect can be generated. It is particularly advantageous that this optical effect does not have to be produced by consuming processing of the material, which would cause high processing costs. Rather, a relatively inexpensive, large-area glass element, which acts as a frame or support element, with a higher quality or higher priced glass element, which acts as a window, structurally combined or assembled.
  • the coupling element is formed in one piece and produced by means of a forming process, a primary molding process, or by cutting shaping.
  • the coupling element is produced by a forming process, or by a machining process from a workpiece, so as to enable an optimized small batch production and to reduce production costs.
  • the coupling element is formed of several parts, which are interconnected by positive, non-positive or material connection.
  • the advantage of this expression is to combine different materials and thereby to take advantage of the different material properties.
  • the combination of different materials can also be advantageous in order to achieve a cost savings in a prototype or small batch production and not having to resort to forming processes or machining processes.
  • the rigid connection of the coupling element with the lens or with the carrier element is designed as a material or as a positive or non-positive connection.
  • a material connection offers the advantage that no elaborate pretreatment of the respectively intended for bonding material is necessary.
  • a positive or frictional connection may, under certain circumstances, provide certain advantages in terms of higher heat resistance or higher load capacity of the connection.
  • the rigid connection of the coupling element is formed with the lens or with the carrier element as an adhesive bond, said adhesive bond with a relative to the adhesive, elastic intermediate material in the overlap zone between the lens and the support member relatively rigid, unyielding adhesive increased fatigue strength or long-term adhesion resistance is executed. It is advantageous that the rigid adhesive between the lens and the preferred metallic coupling element has a high long-term stability and the durability and adhesion of such a glass and metal adhesive is tested, whereby a reliable mounting of the lens is guaranteed.
  • the relatively displaceable or flexible connection of the coupling element with the viewing window or with the carrier element is designed as a positive connection. It is advantageous here that the required flexibility or the desired compensating capacity of this mechanical connection can be realized by simply engaging behind a component of the glazed door, in particular the frame-like support element of the glazed door, and thus a cost-effective and practical solution can be created.
  • the glazed door is designed as a front paneling element of a heating device and a combustion chamber door of the heater structurally is upstream.
  • the glazed door can also function as a design element and thus, in addition to the underlying technical functionalities, also optimally meet optical requirements. This multiple effect is achieved with an optimized cost / benefit ratio.
  • Fig. 1 to 3 is an embodiment of a heater 1 with a combustion chamber door 11 of the heater 1 presented or structurally upstream glazed door 2 illustrated.
  • the glazed door 2 may comprise a viewing window 3, which consists of several Individual parts or composed of different glass insert elements.
  • the at least one viewing window 3, which is preferably formed from mineral glass, is glued to at least one metallic carrier element 6.
  • the lens 3 is protected by a mechanical disc securing device 14 from falling out of the frame-like support member 6 and secured against unwanted, gradual loosening or delamination against a strip-like support member 6.
  • the heating device 1 comprises a substantially parallelepiped-shaped housing 17, in which a combustion chamber 18 for combustion of biomass-based fuel is formed.
  • a combustion chamber door 11 is provided to open and close the combustion chamber 18 as needed.
  • the combustion chamber door 11 can be provided with the said glazed door 2, which can be opened or operated independently of the combustion chamber door 11 and can contain various design elements.
  • the functions of the glazed door 2 can be based in particular in a heat shield or combustion protection, in the creation of an additional convection channel with respect to the furnace body, in a security element and / or in a design element.
  • the combustion chamber door 11 superior view door 2 includes a lens 3, wherein with respect to the basic mechanical structure of the glazed door 2 different versions are possible.
  • a carrier element 6 is provided, for example a frame made of aluminum, or a carrier plate, which represents an essential functional and design element of the glazed door 2.
  • This frame may be performed circumferentially with respect to the lens 3 made of glass, or be provided for example only on the upper and lower edges of the lens 3. It is also conceivable to assign the viewing window 3 no circumferential frame, but to provide at least one strip-shaped carrier element 6, which extends over a section of the back of the lens 3.
  • planar element of the glazed door 2 can be designed in various embodiments.
  • a convenient variant, as in Fig. 2 is shown, comprises a viewing window 3, for example, single-pane safety glass or glass ceramic, which is inserted into the carrier element 6.
  • This glass pane 3 can be printed in sections or be processed by other surface treatments, for example by etching, so that a viewing window 4 or more windows 4 remain free.
  • This at least one viewing window or the transparent section 4 in the glazed door 2 offers a clear view of the sections of the oven located behind it.
  • those portions 5 of the glazed door 2 which are opaque or slightly translucent prevent or make it difficult to see those portions of the oven body of the heater 1 which are not to be viewed.
  • the view of optically possibly unattractive functional parts of the heating device 1 can thereby be optimally suppressed or denied with high cost / benefit efficiency.
  • An adhesive intermediate material 12 for adhesive bonding of the carrier element 6 with the lens 3 is preferably designed as an elastic adhesive, or as elastic silicone, which is preferably temperature resistant, to compensate for thermal expansion between the support member 6 and the lens 3.
  • the intermediate material 12 connecting the various elements is a double-sided adhesive tape which can also compensate for the temperature-related relative movements between the different materials of the glazing door 2 without critical mechanical stresses between the viewing window 3 and the support element 6 occur.
  • the glazed door 2 further comprises the aforementioned, mechanical window safety device 14, which ensures a long-term reliable or secure hold between the lens 3 and the support member 6.
  • This disc securing device 14 is special expedient, since it due to the frequent, temperature-related relative movements between the support member 6 and the lens 3, which are caused due to the different thermal expansions of the materials and due to a frequent heating and cooling, to fatigue at the splices in the overlapping zones 13 between the lens 3 and can come to the support element 6. These fatigue phenomena could gradually lead to the sighting glass 3 no longer being able to be held securely or with the desired holding force in or on the carrier element 6. Gradual delamination or dissolution of the glazed door 2 would be the result. A sudden falling out of the lens 3 would mean a security risk for the user in the worst case. These disadvantages are avoided with the specified disc securing device 14 or kept comprehensively at the back.
  • the glazed door 2 comprises the window securing device 14 in order to ensure that even when the glazed door 2 is preceded by a combustion chamber door which normally emits high thermal radiations and is therefore exposed to elevated temperatures, the glazing panel 3 glued to or in the support element 6 will certainly be safe for a long time remains connected to the carrier element 6.
  • a coupling element 8 belonging to the disc securing device 14 can be produced in several embodiments.
  • the at least one coupling element 8 of the disk securing device 14 can be formed from different, interconnected parts, with form-fitting connections, for example screw connections, rivet connections or telescoping or telescoping mold elements being suitable here.
  • non-positive connections such as clamping elements, or material connections, such as bonds and welds or solder joints can be realized.
  • Another variant of the training is to produce the coupling element 8 as a deep-drawn part or as a formed part in order to define a good basis for mass production.
  • Yet another variant is to create the coupling element 8 by cutting shaping, in particular to mill from a block.
  • the coupling element 8 is produced by means of prototypes, for example as an aluminum casting.
  • connection between the viewing window 3 and the coupling element 8 is constructed in that the coupling element 8 is glued to the lens 3 or secured by another cohesive connection.
  • This high-strength and relatively rigid sticking takes place by means of an adhesive whose long-term durability has already been tested or certified, and which adhesive is sufficiently temperature-stable.
  • the relatively rigid adhesive for the adhesive bond 15 between the lens 3 and the coupling element 8 offers the advantage that such adhesives have already been used successfully in industry for several years, and therefore the long-term stability of such an adhesive between the sight glass 3 made of mineral glass and the preferably metallic coupling element 8 can be considered as tested.
  • the coupling element 8 As an alternative to the preferred adhesive connection 15, it would be conceivable to connect the coupling element 8 to the viewing window 3 by means of a screw connection or a riveted connection and the like. Here, however, the disadvantage would arise that the lens 3 would have to be processed consuming for attachment of the coupling element 8. In yet another embodiment, it is conceivable that the coupling element 8 is connected via positive engagement or via adhesion with the lens 3. However, such fastening measures would represent a structurally possibly disturbing type of fastening between the lens 3 and the support member 6, so that these attachment measures are less satisfactory.
  • connection between the coupling element 8 and the carrier element 6 is preferably produced by a relatively displaceable positive connection such that the coupling element 8 engages or engages behind the carrier element 6 so that a relative movement between the coupling element 8 and the carrier element 6 is made possible.
  • the coupling element 8 exerts slight pressure on the carrier element 6, wherein care must be taken that thermal expansion-related relative movements between the coupling element 8 and the carrier element 6 are made possible.
  • the coupling element 8 is fixedly connected to the carrier element 6 and engages via positive engagement in the viewing window 3 or in a fixed to the lens 3 element.
  • the rigid Connection between the coupling element 8 and the support member 6 is provided, while the relatively displaceable coupling between the other end portion of the coupling element 8 and the lens 3 is present.
  • the coupling element 8 is fixedly or rigidly connected to both the support member 6 and the lens 3, and that the heat-related relative movements between the lens 3 and the support member 6 are compensated by the coupling element 8 itself ,
  • the coupling element 8 may be formed from an elastic element or material, for example as a spring or as a plastic element.
  • the disc securing device 14 serves, above all, to ensure that in the case of one of the combustion doors 2 presented glazed door 2 a glued to the support member 6 viewing window 3 remains securely connected to the long term support element 6.
  • the glazed door 2 can be used as a visually attractive veneering of the combustion chamber door 11 of a heating device 1, for example a pellet stove.
  • the lens 3 is conveniently bonded by means of an elastic, temperature-resistant adhesive or intermediate material 12 with the carrier element 6 in order to compensate for the relative movements due to the different thermal expansion coefficients of the support member 6 and the lens 3 to a sufficient extent.
  • the pane securing device 14 is provided.
  • at least one bridge-like coupling element 8 is glued by means of a rigid or high-strength, temperature-resistant adhesive to create a relatively rigid adhesive bond 15 on the lens 3.
  • the opposite end portion of the coupling element 8 is slidably coupled to the support member 6, so that a secure hold of the lens 3 is ensured with respect to the carrier element 6 over longer periods of time.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Central Heating Systems (AREA)
EP14159131.3A 2013-03-12 2014-03-12 Portes vitrées d'un dispositif de chauffage et dispositif de chauffage équipé de celles-ci Not-in-force EP2778526B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50168/2013A AT514046A1 (de) 2013-03-12 2013-03-12 Sichttüre einer Heizeinrichtung sowie damit ausgestattete Heizeinrichtung

Publications (3)

Publication Number Publication Date
EP2778526A2 true EP2778526A2 (fr) 2014-09-17
EP2778526A3 EP2778526A3 (fr) 2014-09-24
EP2778526B1 EP2778526B1 (fr) 2016-01-20

Family

ID=50241230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14159131.3A Not-in-force EP2778526B1 (fr) 2013-03-12 2014-03-12 Portes vitrées d'un dispositif de chauffage et dispositif de chauffage équipé de celles-ci

Country Status (2)

Country Link
EP (1) EP2778526B1 (fr)
AT (1) AT514046A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB249291A (en) * 1925-02-25 1926-03-25 Edward Montague Edwards Improvements in or relating to oven doors of cooking ranges and the like
US1887654A (en) * 1929-11-22 1932-11-15 Mahon Herbert George Basil Furnace observation window

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10232960A1 (de) * 2001-12-05 2003-06-18 Gronbach Forschungs Und Entwic Bauteil, insbesondere Türe, insbesondere aus Metall, mit einem Fensterausschnitt
US9163449B2 (en) * 2011-07-01 2015-10-20 Andersen Corporation Laminated glass retention system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB249291A (en) * 1925-02-25 1926-03-25 Edward Montague Edwards Improvements in or relating to oven doors of cooking ranges and the like
US1887654A (en) * 1929-11-22 1932-11-15 Mahon Herbert George Basil Furnace observation window

Also Published As

Publication number Publication date
EP2778526B1 (fr) 2016-01-20
EP2778526A3 (fr) 2014-09-24
AT514046A1 (de) 2014-09-15

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