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    • 专利摘要:
    glazing element for refrigerated chamber furniture the invention relates to a glazing element (200) comprising at least one insulating glazing comprising at least a first (10) and a second (11) sheet of glass associated by means of a spacer (12) ) which keeps them at a certain distance from each other, said spacer extending along the lateral, upper and lower edges of said at least two sheets of glass and, between said at least two sheets of glass, at least one internal space (15) comprising a blade of an insulating gas and closed by first (13) and second (14) peripheral seals arranged around said internal space, and at least one chassis (201) supporting said at least an insulating glazing, said chassis comprising (i) a fixed support (21) and (ii) a mobile support (22) articulated on the fixed support that allows the opening and/or closing of the glazing element. such a glazing element comprises a spacer (12), first (13) and second (14) peripheral seals which extend along at least one of the side edges of the at least two sheets of glass and which are made of a resin transparent, said mobile support being devoid of at least one side rail. figure 2.
    公开号:BR112015031084B1
    申请号:R112015031084-2
    申请日:2014-05-28
    公开日:2022-01-04
    发明作者:Pierre Schneider；Nicolas Boucher；Olivier Bouesnard
    申请人:Agc Glass Europe；
    IPC主号:
    专利说明:

    1. Domain of the invention
    [001] The field of the invention is that of insulating glazing elements for refrigerated chamber furniture. These glazing elements can be used in all types of applications such as glazing for refrigerator doors, freezer doors, or even utility glazing. 2. State-of-the-art solutions
    [002] The refrigerated cabinet, still called refrigerated cabinet, used in most commercial places to sell and/or consume products that must be preserved at temperatures below 10 °C, such as foodstuffs, it is often equipped with glazing elements that transform it into a refrigerated sales unit. These pieces of furniture allow the consumer/customer to view the products and, in particular, use self-service, while keeping the products at a certain temperature. The refrigerator cabinet thus represents the last link in the food cold chain before the product is in the possession of the consumer. The development of products and especially foodstuffs is essential, but this must not be done at the expense of the quality of their preservation. In other words, refrigerated furniture is used to present and/or display products in a useful volume at a certain storage temperature (generally below 10 °C).
    [003] In this way, the exhibition of products and, more particularly, of foodstuffs plays a key role in the sale of products. A good exposure involves, in particular, good visual access to the products contained in the refrigerated cabinet, without the need to open it. However, during exposure, the refrigerated chamber furniture must maintain the temperature and ensure the conservation of the products that must be cooled or frozen. Thus, by the laws of thermodynamics and contrary to the display function, the furniture should at least protect the products against all types of thermal aggression, such as closing and opening doors. However, on a technical level, the functions of displaying and preserving products at a certain temperature in refrigerated cabinet furniture are in complete contradiction, since the consumer must be able to dispose of the products contained in the refrigerated cabinet cabinet, benefiting from the furniture wide-opening and well-lit refrigerated chamber, and the trader must ensure the quality of conservation of the products, being essential to close or reduce the openings of the furniture as much as possible, as little lighting as possible and, more particularly, the minimum of changes thermals with the store environment.
    [004] Thus, several solutions were considered in order to improve the thermal insulation performance of these glazed elements used in refrigerated chamber furniture, such as the use of glass under vacuum, the use of layers that reflect infrared rays, or even triple glazing in which one of the gas sheets can be krypton. However, it is necessary to improve the energy efficiency of such equipment, and the use of such multiple panes, due to their thickness and weight, generally requires the use of a support structure that gives them good mechanical resistance, but that occupies a relevant volume. 3. Purposes of the invention
    [005] The invention aims in particular at alleviating these drawbacks of the state of the art.
    [006] More precisely, an objective of the invention, in at least one of its embodiments, is to provide an opening glazing element, for refrigerated chamber furniture, which is inexpensive but at the same time preserves good insulating properties. thermal, and this for longer than the glazing elements used classically.
    [007] Another objective of the invention, in at least one of its modalities, is to implement such a glazing element that opens, which proposes a wide opening, for refrigerated chamber furniture, in addition to avoiding as much as possible the thermal exchanges with the outside environment.
    [008] Another objective of the invention, in at least one of its modalities, is to provide a glazed element that opens, for refrigerated chamber furniture, which allows to ensure an efficient conservation of the products contained in the refrigerated furniture, reducing at the same time the energy consumption to maintain the necessary temperature inside the refrigerated chamber furniture.
    [009] The invention, in at least one of its modalities, also aims to provide such a glazing element that allows optimizing the energy efficiency of refrigerated furniture, in addition to preserving the function of exposing the products contained in the refrigerated cabinet furniture.
    [0010] The invention also aims at the execution of a refrigerated chamber furniture that meets the watertightness criteria of this type of furniture, and of easy to implement and economically advantageous manufacture. 4. Exposition of the invention
    [0011] According to a particular embodiment, the invention relates to a glazing element comprising: a. at least one insulating glazing comprising at least first and second sheets of glass associated by means of a spacer keeping them at a certain distance from each other, said spacer extending along the lateral, upper and lower edges of said at least two sheets of glass and, between said at least two sheets of glass, at least one internal space comprising a sheet of an insulating gas and closed by first and second peripheral seals arranged around said internal space, b. at least one chassis supporting said at least one insulating pane, wherein said chassis comprises: i. a fixed support and ii. a mobile support articulated on the fixed support, which allows the opening and/or closing of the glazing element.
    [0012] According to the invention, such a glazing element comprises a spacer (12), first (13) and second (14) peripheral seals that extend along at least one of the side edges of said at least two sheets of glass and which are made of a transparent resin, and said mobile support is devoid of at least one side rail. The general principle of the invention is based on the implementation in a glazing element of a spacer, peripheral seals in a multiple glazing that are transparent, as well as a mobile support that supports the glazing that is devoid of at least one side rail, in addition to offering an efficient solution from the point of view of thermal insulation.
    [0013] Such a glazed element has the advantage of offering a greater transparent surface due to the absence of at least one side rail on the mobile support and the presence of a spacer and transparent peripheral seals, in addition to allowing a reduction in energy consumption.
    [0014] The use of multiple glazing for refrigerated furniture is already known. However, the glazing is included in a structure in order to maintain sufficient thermal insulation (U values). Thermal insulation is normally determined by the overall performance of a glazing element in multiple glazing, defined by the thermal insulation coefficient. It is observed that several factors influence this coefficient. For example, the thermal bridges connected to the glass as such, the points of attachment of the pane to the supporting structure, the seals spread over the entire surface of the glazing element and, finally, the peripheral connection seals between each pane, commonly called spacers. In the state of the art, the thermal improvement generally remains insufficient, and the use of such multiple glazing, due to their thickness and weight, necessitates the use of a complete support structure that extends along the entire periphery. of the glazing, which gives them good mechanical strength and allows for better insulation of the glazing. However, the presence of a support structure occupies a considerable volume.
    [0015] Furthermore, new regulations and policies on energy saving require the manufacture of glazing elements for refrigerated chamber furniture whose thermal insulation performance is continuously improved.
    [0016] In this way, the invention proposes to replace the classical insulating glazing elements comprised in a support structure, by a glazing element comprising at least one insulating glazing made up of at least two sheets of glass, supported by a mobile support without a gutter side on at least one of the lateral edges, thus presenting a smaller thickness that gives it at the same time a good thermal insulation and a greater transparent surface.
    [0017] According to the invention, the glazing element comprises at least two insulating panes. In this way, when the glazing element is used to enclose a larger surface, such as a large-capacity refrigerated cabinet or a series of cabinets offering at least two openings, the two multiple panes being adjacent, the consumer is not visually disturbed by the presence of side rails. The consumer then has the impression that the refrigerated furniture is devoid of opening glazing elements.
    [0018] The term «mobile or opening support» means the mobile part of the chassis that supports the window and which allows the opening and closing of the glazing element.
    [0019] According to a particular embodiment of the invention, the mobile support that opens comprises horizontal profiles (also called transoms or baguettes) extending along at least one of the upper and/or lower edges of the glazing, which they create with the profiles of the fixed support watertight and airtight barriers.
    [0020] According to a particular embodiment of the invention, the spacer, the first and the second peripheral seals that extend along the side edges of said at least two sheets of glass, comprised in the glazing element according to the invention, are made of a transparent resin.
    [0021] According to an advantageous embodiment of the invention, the spacer, the first and the second peripheral seals which extend along the side edge of a pane adjacent to the side edge of the neighboring pane, are constituted by a transparent resin, and the movable support separating two neighboring panes is devoid of a side rail along the side edge adjacent to the side edge of the neighboring pane.
    [0022] This presents a major advantage if the glazing elements according to the invention are used for a series of refrigerated furniture. “Series” is understood to mean a set of refrigerated furniture that can be aligned, placed in L, Z,...
    [0023] "Transparent resin" means a chemical substance used to manufacture a plastic material or even the plastic itself, which allows light to pass through and allows one to see through it.
    [0024] According to an advantageous implementation of the invention, the spacer consists of a transparent resin chosen from polymethylmethacrylate, polycarbonate, polystyrene (PS), polyvinyl chloride PVC, acrylonitrile-butadiene-styrene (ABS), nylon or a mixture of these compounds.
    [0025] Such a spacer has the advantage of preventing possible exchanges of gas, humidity and dust between the outside environments and the gas sheet of the window, at the same time being transparent, which allows you to see through it the products contained in the refrigerated cabinet unit without the consumer's view being obstructed by the presence of the structure or, more particularly, of side rails. In the state of the art, the spacers used in insulating multiple glazing are generally hollow metal profiles, extruded or formed, or made of organic material, or even a profile with mounting bracket or a profile bent at the corners, in which case the spacer consists of a continuous profile bent at the corners.
    [0026] According to an advantageous implementation of the invention, the first peripheral seal is implemented between the spacer and each of the glass sheets constituting the glazing. The first peripheral seal, commonly known as a watertight barrier, consists of a transparent resin chosen from a double-sided tape in acrylic, modified acrylic, rubber or silicone, more commonly known as "double-sided adhesive tape of the pressure sensitive adhesive-PSA or transfert tape», or a transparent hot melt adhesive (butyl), a structural adhesive of the acrylic or epoxy type, crosslinkable or not under the action of UV.
    [0027] These materials, in addition to being transparent, have a good performance in terms of tightness to water vapor and gases, and also have a good adhesion to glass, while resisting ozone, oxygen, ultraviolet.
    [0028] In a classic way, the peripheral sealing is a bead of mastic generally based on polyisobutylene, more commonly called butyl, particularly effective in terms of water vapor and gas tightness, but whose mechanical performance is insufficient to maintain the sheets of glass together.
    [0029] According to an advantageous implementation of the invention, the second peripheral seal, also called outer sealing barrier, which allows the glass sheets to be sealed together, consists of a resin chosen from a glue comprising silicone, hybrid mastic comprising silicone and polyurethane, hot melt hotmelt or a mixture of these different compounds.
    [0030] These compounds have good adhesion to glass sheets and mechanical properties that allow them to ensure the maintenance of the glass components on the spacer. These compounds are elastomers that, after cross-linking, have elastic properties. They have good oxidation resistance and have poor water vapor permeability. Silicones, which are one- or two-component elastomers, are particularly preferred for their adhesion to glass, their resistance to external agents and their aging. “Hot melt” butyls are hot melt rubbers that have good resistance to moisture penetration. Their rigid consistency at usual temperatures makes them good candidates as sealing seals.
    [0031] According to an advantageous implementation of the invention, the spacer, the first and the second peripheral seals that extend along the side edge of a first pane that juxtaposes the side edge of the neighboring pane are made of a transparent resin.
    [0032] According to a particular embodiment of the invention, the spacer is discontinuous and formed by several parts that can be connected together by a material capable of ensuring the adhesion of the different parts to each other and the watertightness of said glazing. Then, a connecting piece, sealed by means of a caulking product, can be added in order to ensure continuity of watertightness. The tightness of the seals can be reinforced by injecting a caulking product into the four corners.
    [0033] This has the advantage of being able to use different materials for the different parts of the spacer depending on the part of said spacer arranged along the lateral or lower and upper edges of the glass sheets.
    [0034] In order to reduce production costs, and according to an advantageous embodiment of the invention, only the spacer, the first and second peripheral seals extending along the lateral edges of said at least two sheets of glass comprised in the glazing element according to the invention, they are made of a transparent resin, while the spacer and the peripheral seals placed along the upper and lower edges are those classically used for double or triple glazing, namely butyl as the first peripheral seal, a sealing mastic as a second peripheral seal and a metallic spacer. These different materials are not transparent, and are visible to the consumer. When they are used, these elements are then masked by the elements of the mobile support and especially by the sleepers.
    [0035] According to an advantageous implementation of the invention, the at least one insulating pane of the glazing element has a thermal coefficient U comprised between 1.6 and 1.8 W/m 2 . The thermal coefficient U corresponds to the amount of heat that the material lets through. This type of glass allows high insulating performances, and thus allows for savings in terms of energy and to meet new regulations in terms of energy savings.
    [0036] According to a particular embodiment of the invention, the at least one insulating glazing comprises at least a first and a second glass sheets associated by means of a spacer, said sheets being of different sizes and thus being able to be displaced along of the entire periphery of the window. Then there is talk of asymmetrical glazing. This difference in sizes between the at least first and second panes of glass has the advantage of being able to easily implement the mechanical assembly of the beam on the lower and upper edges of a multiple glazing in this part, or even to place a system of heating element that could be placed on the displaced part of the glass to prevent condensation from forming on the edge of the pane.
    [0037] According to a particular embodiment of the invention, the at least one insulating pane comprises at least one sheet of safety glass.
    [0038] «Safety glass sheet» means thermally tempered glass or laminated glass.
    [0039] This type of glass allows the protection of people against the risk of injury in case of glass breakage.
    [0040] The invention also concerns the use of an insulating glazing element according to the invention as a door for a refrigerated chamber furniture.
    [0041] The invention also relates to a refrigerated chamber furniture comprising at least one glazing element as described above.
    [0042] According to a particular embodiment of the invention, the refrigerated chamber furniture comprises at least one glazing element comprising at least two insulating panes. According to a particular implementation of the invention, the refrigerated chamber furniture comprises at least one glazing element comprising at least two insulating panes and whose watertightness between the at least two insulating panes is effected by means of a transparent sealing element positioned at least along the side edge adjacent to the side edge of the neighboring pane.
    [0043] The advantages of these refrigerated chamber furniture are the same as those of the glazed elements, not being detailed in a more complete way. 5. List of figures
    [0044] Other features and advantages of the invention will be more clearly apparent from reading the following description of a preferred embodiment, provided by way of a purely illustrative and non-limiting example, and the attached drawings, in which: • Figure 1 illustrates a insulating glazing according to the invention, • figure 2 illustrates a glazing element according to an embodiment of the invention, • figure 3 illustrates the moving part of a glazing element according to the invention, • figure 4a shows an example in which the glazing element according to the invention is integrated into a refrigerated chamber furniture; • figure 4b represents a top view of a glazing element whose moving parts are open. 6. Description of an embodiment of the invention
    [0045] When products must be preserved at a certain temperature in a refrigerated cabinet, they must remain visible to the consumer. For this reason, refrigerated cabinets, still called refrigerated cabinets, used in most commercial premises to sell and/or consume products that must be kept at certain temperatures, are often equipped with glazing elements that transform in refrigerated furniture for sale. In this way, these pieces of furniture allow the consumer/customer to view the products and use it for self-service, at the same time as guaranteeing the maintenance of the temperature in the furniture's chamber.
    [0046] The exhibition of merchandise plays a key role in the sale of products. A good exposure involves, in particular, a good visibility of the products contained in the refrigerated furniture. However, during exposure, the refrigerated furniture must maintain a certain temperature and ensure the conservation of the products that must be cooled or frozen.
    [0047] Refrigerated furniture is generally presented in four parts, namely, the furniture support structure, refrigeration elements, useful sales space, in other words, the content, and, preferably, glazed doors to allow supply of refrigerated furniture and consumer access to products offered for sale.
    [0048] The furniture support structure is mainly composed of an insulated envelope in the form of double panels of the «steel-foam-steel insulation» type. The quality of the implementation and the thickness of the insulation will determine the energy performance of the furniture in terms of penetrations (or negative loss). Currently, refrigerated furniture tends to be more and more aesthetic, especially featuring a glass support structure. The question of energy performance then arises. Thus, according to a particular embodiment of the invention, glazing elements such as, for example, those illustrated in figure 2, can be used to form the doors of the cold room furniture or to form the cold room furniture as such.
    [0049] The refrigerating elements are generally found inside the furniture.
    [0050] The invention will be described more particularly for refrigerated cabinet furniture or even retail refrigerated furniture in the form of a cabinet, but the invention is not limited to this type of furniture. In fact, there are several variants of these refrigerated furniture for sale. Some are in the form of a cupboard and then it is the door itself, which is a transparent glazed element, others are chests and the horizontal lid is glazed to allow the observation of the contents, and others are still showcases-counter and it is the part that separates the public of the goods that is glazed. Whatever the variant of these refrigerated sales furniture, it is also possible to produce glazed walls so that the entire contents are visible from the outside.
    [0051] In this type of display, it is necessary that the goods remain perfectly visible to the customers, in order to be able to pre-select the goods without opening the furniture and to avoid any unnecessary loss of energy, and therefore lead to a excessive energy consumption. Excessive energy consumption is also often linked to the use of glazing elements that are not sufficiently insulating. Thus, the glazed part, more in particular the opening glazed part of the refrigerated cabinet, still called the opening or door of the refrigerated sales cabinet, should preferably not be delimited by a structure, or at least on its lateral edges, to give the customer the impression that the furniture has no opening, while maintaining its role as a thermal insulator. It is also necessary to prevent the glazed parts of the furniture and, in particular, the doors from being covered by condensation and from resisting the pressure caused by the frequent opening/closing of these doors by customers, or even by the employees responsible for supplying refrigerated furniture.
    [0052] Classically, refrigerated furniture doors comprise a double or triple glazing, requiring the use of a support structure that extends over the entire periphery of the glazing, in order to give it a good mechanical resistance. Unfortunately, this structure, more commonly called chassis, in addition to occupying a considerable volume, does not always have good thermal insulation and is not aesthetic.
    [0053] Thus, in relation to figure 1, an insulating glazing 100 is presented that will be implemented to manufacture the glazing element 200 according to the invention.
    [0054] Insulating glazing 100 is a double glazing comprising first and second sheets of glass 10, 11 (e.g. 4 mm thick soda-lime-silica glass sheets) joined together by at least a spacer 12 that keeps them at a distance from each other.
    [0055] Between the two sheets of glass 10, 11, an internal space 15 comprising a sheet of an insulating gas and closed by first and second peripheral seals 13, 14 arranged around said internal space.
    [0056] According to the invention, the sheets of glass can be of different sizes.
    [0057] According to the invention, the spacer 12 which extends along at least one of the edges of said at least two sheets of glass is constituted by a transparent resin. According to a preferred implementation of the invention, the spacer made of a transparent resin is positioned at least along the side edge of a glazing adjacent to the side edge of a neighboring glazing, this in order to ensure linearity, continuity of the piece of furniture. refrigerated chamber comprising at least two openings. In this way, the customer or the employee, faced with the refrigerated chamber unit, has the impression that the refrigerated chamber unit is devoid of a glazing element and his vision is not disturbed by the presence of structure or side rails, while the glazing element is present and ensures its role as a thermal insulator.
    [0058] The spacer implemented according to the invention can be hollow or solid. It can be hexagonal in shape. In the case where the spacer is hollow, the load with the multiple glazing chambers must be balanced. The spacer 12 may especially comprise a hollow cross section which is, for example, in the shape of a square. This section is partially open to the internal space 15 comprising the insulating gas. A desiccant material can then be arranged inside the spacer 12.
    [0059] According to a particular implementation of the invention, the spacer 12 can be formed of several parts that can be connected together. In this way, the different parts can be made of different materials.
    [0060] According to a preferred embodiment of the invention, the spacer 12 placed on the side edges of the multiple glazing consists of a transparent resin, while the spacer placed on the lower and upper edges of the glazing may be non-transparent. The spacer 12 made of a transparent resin is then preferably made of a material chosen from polymethylmethacrylate, polycarbonate, polystyrene, PVC polyvinyl chloride, acrylonitrile-butadiene-styrene (ABS), nylon or a mixture of these compounds. , and the spacers placed on the lower and upper edges, or even on the side edge that is not adjacent to the side edge of a neighboring pane, are a profile in galvanized steel, aluminum, stainless steel, or composites....
    [0061] According to the invention, the first peripheral seal (13) that extends along at least one of the side edges of said at least two sheets of glass is constituted by a transparent resin. According to a preferred implementation of the invention, the first peripheral seal 13 made of a transparent resin is positioned at least along the side edge of a pane adjacent to the side edge of a neighboring pane, this in order to ensure linearity, continuity of the refrigerated chamber furniture comprising at least two openings. In this way, the customer or the employee, facing the refrigerated chamber unit, has the impression that the refrigerated chamber unit is devoid of a glazing element. According to the invention, the first peripheral seal (13) can be positioned before or after the peripheral seal (14). Such a seal is preferably made of a waterproofing material, chosen from a double-sided tape in acrylic, modified acrylic, rubber or silicone, also called double-sided adhesive tape «type pressure sensitive adhesive-PSA or transfert tape», or a transparent hot melt (butyl) adhesive, a structural adhesive of the acrylic, epoxy type, crosslinkable or not under the action of UV.
    [0062] According to the invention, the second peripheral seal (14) can be positioned before or after the peripheral seal (13). The peripheral seal present at least along the side edge of one opening that is adjacent to the side edge of another opening is made of a transparent resin. Such a seal, which is preferably made of a sealing material, is a glue comprising silicone, hybrid mastic comprising silicone and polyurethane, hot melt rubber or a mixture of these different compounds.
    [0063] According to a preferred embodiment of the invention, a desiccant material can be arranged inside the multiple glazing. It can be arranged inside the spacer or in different places on the window, for example on the baguette. Preferably, the desiccant material is incorporated into the spacer. Dehydration of the air or gas trapped between the sheets of glass can be achieved by a desiccant (or desiccant) contained in the tubular spacer. This spacer is then provided with an orifice (slits or holes) so that the desiccant is in communication with the air or gas inside. This is usually a molecular sieve, sometimes silica gel. The absorption capacity of these desiccants is greater than 20% of their weight. After dehydration, in a new insulating pane, the humidity rate is low enough that there is no condensation between the panes at temperatures below -60 °C. When the spacer or a part of the spacer is not made of a transparent resin, then the peripheral seals 13, 14 may comprise polyisobutylene sealing layers 13 disposed respectively between the spacer 12 and each of the first and second sheets of glass 10, 11 Peripheral seal 14 may also comprise a bead of polysulfide or silicone resin disposed in contact with sealing layers 13 between each of glass sheets 10, 11 and spacer 12.
    [0064] According to a preferred embodiment of the invention, the internal space 15 comprises a sheet of an insulating gas comprising at least 85% Argon or Krypton, or any other inert gas capable of optimally insulating the glazing. Suitable gases must be colorless, non-toxic, non-corrosive, non-flammable, insensitive to exposure to ultraviolet radiation, denser than air and having a lower thermal conductivity. Argon (Ar), krypton (Kr), xenon (Xe) are examples of such gases that are commonly substituted for air in insulating glazing panels. It is understood that the internal space 15 can be filled with air.
    [0065] The use of multiple glazing for refrigerated furniture is already known. However, the glazing is comprised in a structure to maintain sufficient thermal insulation (U values), but the thermal improvement remains generally insufficient. Furthermore, the use of such multiple panes, due to their thickness and weight, requires the use of a complete support structure along the entire periphery of the pane, which gives them good mechanical strength, but which occupies a considerable volume.
    [0066] Thus, the inventors propose a multiple glazing that can be used in a glazing element suitable for use as a door, openings for refrigerated chamber furniture without requiring the presence of a mobile support that extends along the entire periphery of the windowpane.
    [0067] According to the invention, the glass sheet (10°) and (11) respectively in external and internal position, can be a simple soda-lime glass sheet, a tempered glass or even a laminated glass, an extra-white glass to improve light transmission, a smoked glass or not in the mass, for the aesthetic appearance, a glass on which an anti-scratch or hydrophobic film can be deposited. In addition, more and more functions are added to these panes by depositing thin layers on their surface to give them a particular property according to the intended application. Thus, the glass sheets can be covered on their outer and/or inner faces with one or more layers chosen from the following list: an anti-mist layer, an antibacterial layer, a hydrophobic layer in order to avoid condensation water stagnation or an easy-to-clean layer, a semi-reflecting or reflective layer, a low-emissivity layer or a pyrolytic layer. Thus, there are layers with an optical function, such as the so-called anti-reflection layers, composed of a stack of layers of alternatively high and low refractive indices. For an antistatic or antifreeze-type heating function, thin electrically conductive layers, for example based on metal or doped metal oxide, can also be provided. For a thermal, low-emissivity or anti-sun function, for example, we can turn to thin layers of silver-colored metal or based on nitride or metal oxide. In order to avoid condensation, the insulation performance of the glazing has been increased thanks, in particular, to the use of a double or even triple glazing to form the glass parts of the refrigerator cabinet, but also to the presence of low-emissivity layers on at least one of the sides. of the sheets of glass included in the pane, thin layers that reflect infrared radiation, or the use of triple panes of which one of the gas sheets may be Krypton. It can also heat at least faces of the windowpane.
    [0068] The insulating glazing 100 is thus implemented to manufacture a glazing element 200 as represented by figures 2 to 4.
    [0069] In general, in multiple glazings comprising two or even three or more sheets of glass, the spacer is fixed to the inside of the insulating glazing by means of its side faces to the inner faces of the glass sheets with butyl rubber, which Its role is to make the interior of the window glass water-vapour-tight. The spacer is disposed recessed inside the pane and close to the edges of said sheets of glass, so as to form a peripheral groove into which sealing means of the mastic type, such as a polysulphide or polyurethane, are injected. The mastic confirms the mechanical assembly of the two sheets of glass and ensures tightness to liquid water and solvents. This colored spacer as well as the sealing means are not aesthetic and are generally masked by an outer structure on which the glazing rests. However, this visible structure represents a visual barrier, a brake on access to the goods contained in the refrigerated furniture. This structure has not only an aesthetic role, but also a thermal insulating role. It should, in general, be a poor conductor.
    [0070] Classically, the chassis comprises different parts, in which: - the fixed support, still called fixed structure, which is a constitutive element of the chassis base, represents the part of the chassis fixed to the support structure of the refrigerated furniture. It generally comprises the window fixing bag, - the movable support, still called the opening frame, which is the movable part of the chassis. It generally includes airtight seals. The fixed support then comprises profiles that create, with those of the opening, barriers to water and air. Space is also provided to accommodate the hardware.
    [0071] In general, fixed and mobile supports are composed of upper and lower edges and side rails (right and left). This configuration makes it possible to support the insulating glazing, but also to contribute to thermal insulation.
    [0072] The chassis are generally manufactured in different materials such as wood, PVC (polyvinyl chloride), aluminum or even composite materials.
    [0073] The invention therefore proposes a glazing element 200 that comprises at least one multiple glazing 100, supported by at least one chassis whose movable support or opening structure, still called a door, is devoid of side rails covering at least the side edge of the pane adjacent to the side edge of the neighboring pane.
    [0074] The structure of the glazing used for the glazing parts, and especially the doors of the refrigerated chamber furniture according to the invention, has the advantage of providing a rigidity and resistance equivalent to that of a single glazing, even if said glazing is devoid of movable support along the entire periphery of the glazing, or, more particularly, side rails extending at least along the side edges, in addition to guaranteeing good thermal insulation. Thus, the volume occupied is greatly reduced, thus offering greater visibility of the contents of the refrigerated cabinet. The use of an opening without a movable support is even more surprising since the main role of a movable support of a door or window, or in general of an opening, is to keep the glazing in place and allow opening, maintenance and ventilation. In particular, the structure of the support frame bears the weight of the elements that make up the glazing, the climatic and maintenance loads, as well as certain accessories, and transfers it to the side walls of the refrigerated furniture, to which the support frame must be properly anchored to resume/support pressure efforts. Furthermore, it is not sufficient for the mobile support to have the necessary strength to constitute an effective support for the glazing; it is also necessary that the weight of this is transferred to the sensibly chosen places, in order to avoid excessive deformation of the opening structures and the fixed rails. Generally speaking, a weakly conductive support structure made of wood, aluminum or PVC is used to support a multiple glazing.
    [0075] However, the use of such an insulating glazing unit without a movable support along the entire periphery of the glazing is not without consequences for the structure of the refrigerated chamber unit, in particular when it is a unit whose ambient temperature is very different from the outside ambient temperature. Thus, in order to ensure optimal thermal insulation, the glazing 100 has a value of heat transfer coefficient U between 1.6 and 1.8.
    [0076] Thermal transmission coefficient U is understood as the amount of heat that passes through the pane, in steady state, per unit of surface, for a difference of one degree Celsius between the environments, for example exterior and interior. These U values are especially achieved thanks to a low-emissivity layer (low-E layer). For example, the glass sheets used can be Thermobel TopN or TopT glass sheets from AGC. The glass sheet can thus be covered by thin layers of metal of the silver type or based on aluminum nitride or oxide. Thus, the glazing used 100 has a very effective U coefficient, in addition to presenting aesthetic qualities.
    [0077] Next, the use of insulating glazing according to the invention allows for better thermal insulation than usual insulating glazing, for a lower thickness and weight and, consequently, savings in terms of energy consumption.
    [0078] The invention relates, more particularly, to a refrigerated chamber furniture in which fresh, chilled or frozen products are displayed, whose common name is "refrigerated sales cabinet". It is understood that the invention is not limited to this type of furniture; any furniture in a hot environment, humid or not, is also included in the scope of the invention.
    [0079] The invention also aims at a refrigerated chamber furniture that mitigates the different drawbacks of the state of the art, that meets the watertightness criteria of this type of furniture and proposes a furniture of easy execution and economically advantageous.
    [0080] The refrigerated chamber furniture according to the invention has the advantage of providing the customer with increased visibility of its contents, since the openings are devoid of support structure, at least along one of the side edges of the panel of the glass, in addition to ensuring good thermal insulation.
    [0081] The glazed element for making such a refrigerated furniture is described below in the present document and is represented, by way of example, by figures 2 and 3.
    [0082] According to a particular embodiment of the invention, the sealing between the two openings is carried out by means of a transparent sealing element 31 fixed to the pane. Watertightness is, for example, ensured on the side edges without side rails by a lip seal or with a transparent rod, or of the broom or felt type, on the lower and upper edges of the glazing. Preferably, the insulating glazing is provided, at least along one of its edges, with a transparent sealing element such as a glued profile, especially made of plastic. A profile is understood to mean any type of prefabricated profile, with a shape adapted to the function of said profile. Preferably, the profile is a profile made of plastic, so that it can join the deformation of the glazing without significant restrictions. Such a profile glued along at least one of the edges of the glazing can perform various functions such as protecting the edges of the glazing, fixing various elements such as hinges or handles, or even the aesthetics of the opening. Furthermore, the use of a profile is advantageous for making magnetic contacts between the opening and the furniture and/or the neighboring opening.
    [0083] Thus, in relation to classic refrigerated cabinets, the vertical elements for receiving the lateral edges of at least two doors are eliminated, the lateral edges being those that are not fixed along the edges to the furniture walls. The vertical elements with which the door was in contact, so that the sealing and blocking of the doors are ensured. The absence of vertical elements makes it possible to simplify the structure of the furniture, in addition to improving its aesthetics.
    [0084] According to an advantageous embodiment of the invention, said sealing element placed along the side edges of the pane is a lip seal or transparent stem, which has the advantage of not creating resistance restrictions at the level of the pane and not create a risk of seal rupture along the entire length.
    [0085] Preferably, the lower and upper corners of the glazing are equipped with an element capable of receiving a magnetic piece in order to ensure contact with the furniture and/or the edge of the neighboring door. Thus, a good contact and a good stop is made between the column and the furniture and the neighboring column, in addition to allowing a hermetic and aesthetic closing of the referred door.
    [0086] According to an advantageous variant of the invention, the sealing between the door and the upper and lower edges of the furniture is effected by means of compressible magnetic seals arranged along said furniture edges, so that the contact be carried out on the periphery of the opening.
    [0087] In this way, the inner surface of the opening is relieved and the compressible magnetic seal allows for an airtight contact that absorbs the small deformation that may appear along this contact length. In fact, since this contact length is smaller than the length at the side edges of the furniture, the deformation arrow is much less significant and the contact can be made on the periphery of the door, without risk of the seal breaking.
    [0088] According to an advantageous variant of the invention, the hinge axis is eccentric with respect to the plane of said door, and the hinge element is glued to the door.
    [0089] According to a variant of the invention, the insulating glazing has sheets of glass of different sizes along the entire periphery of the glazing. The asymmetry of the two sheets of glass facilitates the mechanical assembly of the transom on the lower and upper edges of a multiple glazing, and in particular the double glazing included in the door.
    [0090] According to a particular embodiment of the invention, the door is provided with a return element of the stem-spring type. Such an embodiment is particularly advantageous from an aesthetic point of view. Indeed, it makes it possible to eliminate the use of torsion bars commonly used, these bars being generally arranged in the support structure because of their non-negligible volume.
    [0091] These types of assemblies present numerous advantages. First of all, due to the rigidity and mechanical strength of the insulating glazing, it is not necessary to associate the insulating glazing with a support structure along the entire periphery of the glazing as in the usual multiple glazing, a support structure that considerably increases the overall volume of the doors and, therefore, of the furniture.
    [0092] According to a preferred embodiment of the invention, a lower and upper beam 22 are positioned along the lower and upper edges of the multiple glazing, in order to be able to maintain and fix the door to the fixed part, that is, to the fixed support for the door of the refrigerated cabinet.
    [0093] The beam 22 can be made of aluminium, PVC, steel, stainless steel or any material capable of performing this function of maintaining and fixing the pane to the fixed part. The transom must have the lowest possible U coefficient to avoid heat loss. Thanks to the transoms, the mechanical load is transferred through the glass between the lower and upper parts of the multiple glazing, but also through the structure. Such a crossbeam is shown in figure 3.
    [0094] Glass baguettes can be used along the lower and upper edges, allowing the multiple glazing to be kept on the transom.
    [0095] The baguette can be fixed by gluing, polishing or screwing.
    [0096] The term «transom or baguette» means a profile with a small section that serves to fix, maintain, transfer the weight of the glazing to the fixed support and the refrigerated chamber furniture, and to place the glazing. Its height is generally level with that of the glass sheets. It must be able to be dismantled to allow replacement of the glazing if it needs to be replaced. There are multiple baguette fastening systems. It can be fixed by marking or screwing, by polishing on buttons, by polishing on springs or grooves, or by screwing applied to the inner face of the glazing to facilitate the installation and removal of the latter, in a fixed profile or door. The baguette usually takes the form of a wooden baguette the size of a flaw, a metal or PVC profile, which serves to hold the window pane in the recesses of a chassis.
    [0097] The presence of beams on the lower and upper edges of the multiple glazing allows the integration of at least part of the mechanism intended to allow the opening and closing of the doors, and especially the fixing of two, three or even four points of support or articulation, which are mainly anchoring points for the opening and closing movements of the doors. The mechanism intended to allow the opening and closing of the doors is, according to a particular embodiment of the invention, composed of several parts that allow the door to be connected to the refrigerated chamber furniture, and, more particularly, the connection at the level of the fixed support. .
    [0098] It is understood that the fixed support can be the structure of the refrigerated chamber furniture.
    [0099] According to an advantageous implementation of the invention, a system of stops to dampen the closing and/or to keep the door in the open position can be placed on or inside at least one of the transoms.
    [00100] According to another advantageous embodiment of the invention, a desiccant material can be integrated into at least one of the sleepers.
    [00101] According to an advantageous implementation of the invention, at least one of the transoms may comprise a sealing barrier adjacent to the door when it is in the closed position. The sealing barrier can especially be a lip, broom or felt rod seal.
    [00102] According to a particular embodiment of the invention, the refrigerated furniture is adapted to receive the fixed support of the glazing element according to the invention.
    [00103] "Fixed support" means the part of the chassis that is fixed to the refrigerated chamber unit and that will support the door, both when it is in an open or closed position. The fixed support of the structure can be in aluminium, PVC, steel or even wood. The fixed structure will especially comprise a part of the mechanism intended to allow the opening and closing of the doors, the other part being fixed to the door and, according to a particular embodiment of the invention, to the other part of the opening and closing mechanism of the door placed on at least one of the two crosspieces. Thus, the fixed structure can comprise 2, 3 or 4 points of support or articulation, the mechanism for controlling the electric or pneumatic movement of the cylinder type with screws, with or without rods.
    [00104] The fixed support of the structure can especially comprise a stop for closing and keeping the door in the open position. Preferably, a sealing barrier is placed on the periphery of the fixed structure. Such a barrier may be of the lip, broom or felt seal type adjacent to the door in the closed position.
    [00105] According to the invention, opening the refrigerated cabinet doors can be done in different ways. Thus, the doors can be opened by simply articulating from the inside to the outside. The doors can also be opened by sliding the doors from right to left or from left to right, by horizontal translation with or without recovering one of the doors over the others. The doors can also open accordion.
    [00106] When the glazing element is used as a door for refrigerated furniture, opening the doors from the inside to the outside, then the furniture is preferably without vertical interior intermediate columns extending along the height of the furniture, with which the door would be in contact in order to make the seal.
    [00107] The opening and closing of the moving part of the glazing element according to the invention is preferably automated, i.e. generated thanks to an electrical system.
    [00108] According to a particular embodiment of the invention, the refrigerated chamber furniture can be equipped with an interior lighting system for the multiple glazing. Illumination can be done especially thanks to LEDs arranged at least on one of the lower or upper edges of the glazing, a light can also be projected in the field of the panel or the glass panels that make up the multiple glazing.
    [00109] Fixed or video advertising screens can be integrated inside the multiple glazing and, in particular, the double or triple glazing. Electrically or mechanically controlled blinds can be added to the refrigerated chamber furniture.
    [00110] This type of refrigerated chamber furniture described in this way is easy to manufacture and order, as it does not require many parts. It provides undeniable thermal insulation, as well as a very good seal, as well as being aesthetic.
    [00111] By way of example, figures 2 to 4 represent a glazing element according to the invention. More particularly, figure 2 shows a glazing element comprising 4 insulating double panes 100, numbered 1 to 4 starting from left to right, fixed to the fixed support by means of hinged joints positioned on the side edges of panes 1 and 4. panes are linked together by means of double joints positioned at the upper and lower corners of the panes. The opening for the moving parts is an accordion opening (figures 4a and 4b). A translation/rotation system is placed respectively on the upper right and left edges of the panes N° 2 and 3, thus allowing an opening of the opening parts, the opening parts being formed by two insulating panes 100. The panes 1 and 4 comprise two sheets of asymmetrical tempered glass of the soda-lime type, while panes No. 2 and 4 comprise two sheets of tempered glass of identical size. The glass sheets are covered on their inner face by an AGC-type TopNT low-emissivity layer. The internal space between the 2 sheets of glass comprises argon as insulating gas. The insulating panes 100 are fixed by their upper edges to the upper and lower part of the fixed support by means of upper translation bands and transoms 22 positioned along the upper and lower edges of the panes 100. The opening of the doors is automated. The sealing between the insulating panes and the panes and the fixed support is ensured by transparent bead seals. The spacer 12 that separates the two sheets of glass from each pane 100 and placed along the side edges of the panes is a transparent polycarbonate baguette bonded to the panes of glass by means of a peripheral seal 13 which is a transparent double-sided adhesive strip. of the PSA type. The gas tightness comprised between the sheets of glass is ensured by a transparent silicone glue 14 arranged along the spacer. The part of the spacer 12 disposed along the upper and lower edges of the insulating panes 100 is an aluminum baguette comprising a molecular sieve such as silica gel.
    [00112] The refrigerated chamber furniture according to the invention also makes it possible to improve the external aesthetics of these furniture. Thus, the face of the furniture comprising the doors can be almost entirely made of glass due to the absence of supporting structures along the entire periphery of the glass, and it is possible to provide a small space between the doors without disturbing the visibility of the interior contents. of these furniture and the opening and closing of the furniture.
    [00113] The refrigerated chamber furniture according to the invention makes it possible to meet the watertightness criteria required for this type of furniture, it is easy to manufacture and this without increasing, in fact even reducing, the production costs of the furniture.
    [00114] The invention is not limited to this particular type of modality, and should be interpreted in a non-limiting way and encompassing any type of refrigerated chamber furniture comprising at least two doors, which comprise at least one insulating pane composed of at least one first and second sheets of glass. Furthermore, the person skilled in the art will be able to make any variation in the insulating glazing according to the invention, described in the previous figures. For example, the insulating glazing may comprise several internal spaces each comprising a sheet of an insulating gas (e.g. triple glazing), the glass sheets of the insulating glazing panels according to the invention may be made of any type of glass, may be surface textured, may comprise any type of coating intended to perform any function, or may themselves be made up of glazing panels laminated by means of plastic spacers. The insulating glazing may also be a glazing of the VIG type, that is, a glazing obtained by applying a vacuum between the sheets of glass. A glazing element according to the invention can be implemented in any type of application such as refrigerated furniture doors, freezer bay windows (eg balconies, roof elements).
    权利要求:
    Claims (15)
    [0001]
    1. Glazed element comprising: a. at least one insulating glazing comprising at least a first (10) and a second (11) sheet of glass associated by means of a spacer (12) that maintains them at a certain distance from each other, said spacer extending to the along the lateral, upper and lower edges of said at least two sheets of glass and, between said at least two sheets of glass, at least one internal space (15) comprising a sheet of an insulating gas and closed by a first (13) ) and a second (14) peripheral seals arranged around said internal space, b. at least one chassis (201) supporting said at least one insulating pane, wherein said chassis comprises: i. a fixed support (21) and ii. a mobile support (22) articulated on the fixed support, which allows the opening and/or closing of the glazing element, characterized in that - the spacer (12), the first (13) and the second (14) peripheral seals that extend along at least one of the side edges of said at least two sheets of glass are constituted by a transparent resin, and - said mobile support is devoid of at least one side rail.
    [0002]
    Glazing element (200) according to claim 1, characterized in that it comprises at least 2 insulating panes.
    [0003]
    Glazing element (200) according to claim 1 or 2, characterized in that the spacer (12), the first (13) and the second (14) peripheral seals extend along the lateral edges of said at least two sheets of glass are made of a transparent resin.
    [0004]
    Glazing element (200) according to any one of claims 1 to 3, characterized in that the spacer (12), the first (13) and the second (14) peripheral seals extend along the side edge of a first pane which is juxtaposed to the side edge of the neighboring pane are made of a transparent resin, and in that the opening structure, which separates two neighboring panes, is devoid of a side rail along the side edge adjacent to the side edge of the neighboring pane.
    [0005]
    Glazing element (200) according to any one of claims 1 to 4, characterized in that the spacer is discontinuous and formed by several parts that can be connected together by a material capable of ensuring the adhesion of said parts to each other and the sealing of said glazing.
    [0006]
    Glazing element (200) according to any one of claims 1 to 5, characterized in that the spacer (12) consists of a transparent resin chosen from polymethylmethacrylate, polycarbonate, polystyrene, polyvinyl chloride PVC, acrylonitrile-butadiene-styrene (ABS), nylon or a mixture of these compounds.
    [0007]
    Glazing element (200) according to any one of claims 1 to 6, characterized in that the first peripheral seal (13) is a watertight seal chosen from a double-sided tape made of acrylic, modified acrylic, rubber or silicone, or a transparent hot melt adhesive or a structural adhesive of the acrylic, epoxy type, crosslinkable or not under UV action.
    [0008]
    Glazing element (200) according to any one of claims 1 to 7, characterized in that the second peripheral seal (15) is a glue comprising silicone, hybrid mastic comprising silicone and polyurethane, hot melt hotmelt or a mixture of these various compounds.
    [0009]
    Glazing element (200) according to any one of claims 1 to 8, characterized in that the glazing has a thermal coefficient U of between 1.6 and 1.8 W/m 2 .
    [0010]
    Glazing element (200) according to any one of claims 1 to 9, characterized in that the insulating glazing comprises at least a first (10) and a second (11) glass sheet associated with each other by means of a spacer ( 12), said sheets being of different sizes.
    [0011]
    Glazing element according to any one of claims 1 to 10, characterized in that the insulating glazing comprises at least one sheet of tempered or safety glass.
    [0012]
    Use of a glazing element (200) according to any one of claims 1 to 11, characterized in that it is used as a door for a refrigerated chamber furniture.
    [0013]
    13. Refrigerated chamber furniture, characterized in that it comprises at least one glazing element, as defined in any one of claims 1 to 11.
    [0014]
    Refrigerated chamber furniture, according to claim 13, characterized in that the glazing element comprises at least two insulating panes.
    [0015]
    Refrigerated chamber unit according to claim 14, characterized in that the sealing between the at least two insulating panes is effected by means of a transparent sealing element (31), positioned at least along the lateral edge adjacent to the edge side of the neighboring window.
    类似技术:
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    同族专利:
    公开号 | 公开日
    ES2712743T3|2019-05-14|
    DE112014002800T5|2016-03-10|
    DE202014010734U1|2016-06-16|
    WO2014198549A1|2014-12-18|
    CN105283099A|2016-01-27|
    BR112015031084A2|2017-07-25|
    EP3007594A1|2016-04-20|
    DE202014010724U1|2016-05-25|
    PL3007594T3|2019-05-31|
    JP2016531063A|2016-10-06|
    TR201902444T4|2019-03-21|
    CN111345638A|2020-06-30|
    EP3007594B1|2018-11-21|
    US20160120336A1|2016-05-05|
    JP6491648B2|2019-03-27|
    US9661940B2|2017-05-30|
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    DE102019210574A1|2019-07-17|2021-01-21|Schott Ag|Door for a freezer or refrigerator cabinet|
    法律状态:
    2020-02-11| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-07-20| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    2021-10-19| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2022-01-04| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 28/05/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    BE201300421|2013-06-14|
    BE2013/0421|2013-06-14|
    PCT/EP2014/061128|WO2014198549A1|2013-06-14|2014-05-28|Glass element for a cabinet having a refrigerated chamber|
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