Classifications

• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
  • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
  • E06B5/11—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against burglary

Definitions

• the invention relates to a glass element comprising a conductive electrical structure with the features of the preamble of claim 1.
• an alarm pane composed of at least two panes assembled to one another in an insulating pane via a spacer element in the form of a frame
• a spacer element in the form of a frame
• a dormant electrical circuit is led by the conductive structure. The one is broken when the window is broken, which triggers an alarm.
• the electrical connection lines of the conductive structure must be directed outwards between the spacer element and the window, outside the intermediate space of the insulating glass. In this case, they must remain electrically isolated. Similarly, the sealing of the space between the panes of the insulating glass must not be compromised.
• the segment of the conductive structure covered by the spacer element is electrically isolated using a non-conductive fired screen printing paste.
• Document DE-C1-199 60 450 discloses, from the aforementioned solution, an isolation of the line segments located below the spacer element with the aid of a layer of plastic, which can for example be a thin film, assembled by complementarity of force or material on the surface of the window after prestressing.
• a layer of plastic which can for example be a thin film, assembled by complementarity of force or material on the surface of the window after prestressing.
• the thin film At the same time, insulation forms a support film for fittings made from a flat conductor.
• a glass element of this nature is known from the document DE-Cl-101 54 558.
• a bead of glue made of a material which has a significantly increased electrical insulation effect with respect to the material of the remainder of the glue bead.
• the conductive structure is disposed within the field of view, analogously to the solution of DE-CL-199 60 450, and therefore remains visible.
• DE-A1-40 11 541 discloses a prestressed alarm pane with a conductive electrical coating. With the aid of a separation line marked by a laser beam, a marginal strip is electrically separated from the electric heating coating of the main region of the coating and a "conducting structure" is also formed in the sense of the aforementioned publications.
• the aforementioned partial region is used, with the aid of separate external contacts, as a sensor for detecting a rupture of the prestressing pane concerned.
• This can be incorporated in a composite pane or also in an insulating pane element, admitting in the latter case that the partial region of the coating serving as a sensor is located outside the part of the face framed by the pane. spacing element of the insulating glass, to avoid known insulation problems.
• a layer system is used which can withstand a high thermal load and which can already be deposited on the surface of the window prior to prestressing.
• the document DE-A1-103 58 316 finally describes an alarm glass in insulating glass, whose spacer element is placed at a determined distance from the outer edge of the prestressed alarm glass itself, and thus leaving a free edge area, in which the conductive loop provided to trigger an alarm in case of breakage of the glass is arranged.
• the requirements for insulation quality are increasing for these electrical connections. , which are tested for their resistance to breakdown with test voltages of up to 1000 V.
• the adhesives used to date for the spacer frame in the insulating glazing elements namely butyl cords, generally colored black with soot for optical reasons, do not have sufficiently high insulation values and contribute to a small extent to the quality of the insulation. Precisely in the region of the intersection of the connections and the spacer, the bead of adhesive is brought to a thickness of a few tenths of a millimeter during the pressing of the composite, so that there must be values of very high electrical insulation.
• the insulation resistance can be further strongly influenced by moisture or water. This particularly relates to secondary sealing materials located outdoors because of their relatively large surfaces. - AT -
• the mass of the glue could, of course, be colored with other coloring substances, a transformation of bulk manufacture or a separate manufacture of smaller quantities with other coloring substances would entail a high expense, which glue manufacturers refuse and whose total costs are not accepted by customers.
• the object of the invention is to provide an element of glass further improved visually without compromising the operational safety.
• the conductive structure or the alarm loop itself is disposed outside the field of view of the window element, essentially or entirely (apart from the necessary external connections) in the area of the surface covered by the spacer element and by a bead of high electrical resistance glue - preferably using a known material in a manner known per se - a cautious measure generally applied until now in regards to the insulation ratios between the conductive structure and the spacer element, and at the same time this conductive structure is completely masked.
• a cautious measure generally applied until now in regards to the insulation ratios between the conductive structure and the spacer element, and at the same time this conductive structure is completely masked.
• the conductive structure or the alarm loop itself can again be deposited in a single operation by screen printing on coated or uncoated panes.
• connection contacts of the two ends of the conductive structure While it is generally sought to provide the connection contacts of the two ends of the conductive structure in proximity to each other, it is also possible to separate them from each other (as shown in the DE-A1-103 58 316 or DE-Al-40 11 541).
• the conductive structure can then also be designed as a generally rectilinear conductive path (possibly in serpentine or wavy or zigzag segments), which extends generally parallel to and below the respective segment of the spacer element over any its length - excluding external connection regions or soldering points.
• the connection points are not part of the conductive structure in the strict sense.
• projections or studs may be placed on the surface of the glass, in addition to the conductive structure. which rise above the glass surface higher than the actual conductive structure.
• a conductive structure produced by screen printing in a continuous industrial process is 10 to 50 ⁇ m above the surface of the substrate or glass.
• the thickness of the glue layer must not be less than 200 ⁇ m. This results without difficulty in the height or the necessary elevation of the aforementioned studs for the spacer element.
• These pads may optionally be made also by screen printing or also by depositing / gluing other materials on the surface of the glass near the conductive structure. They can also be made analogously to the solution already mentioned in DE-C1-19960450 in the form of flat plastic pieces and also cover the conductive structure, partially or in places. In this case, it is of course not necessary to place the spacing element by completely completely squeezing the glue material on the studs, but there may also be glue in their region between the studs and the stud. spacer element.
• the conductive structure is also broken when the prestressed glass breaks, regardless of whether it is according to the invention in an area of the glass surface, which is in principle secured by a layer of glass. elastic adhesive and the spacer element. Nevertheless, it certainly forms, during the breaking of the glass, several cracks in the longitudinal pattern of the conductive structure, insofar as it is longer than the average size of the fragments formed during the breakage of the prestressed glass . It can therefore no longer circulate current through the conductive structure, so that its function as a sensor
• Fig. 1 shows a first embodiment of a window element according to the invention with a conductive structure
• Fig. 2 shows a second embodiment of the conductive structure
• Fig. 3 shows a third embodiment of the conductive structure
• Fig. 4 is a partial sectional view of the window element along the line IV-IV of FIG. 1, in the region of a connection point for an outer connection of the conductive structure;
• Fig. 5 is a partial sectional view of the window element along the line V-V of Figure 2, seen in the direction of the overall longitudinal dimension of the conductive structure;
• Fig. 6 is another partial sectional view of the window element, seen transversely to the overall longitudinal dimension of the conductive structure.
• a window element 1 comprises a prestressed window 2 and a spacer 3, which is indicated in Figures 1 to 3 only by dashed lines in its parallel pattern to the outer edges 2.
• the spacer 3 assembles the window 2, using adhesive beads, in the usual way to another glass or plastic window tile, into an insulating pane (see FIGS. and 5). It also frames the field of view of the finished window element, which is normally used as a building window or is integrated therein.
• the spacer element 3 itself is generally composed of a hollow section filled with a desiccant. This profile can be metal (eg aluminum) or plastic.
• connection points 5 soldering points
• connection points 5 are still accessible after the manufacture of the insulating window composite, that is to say after the bonding of the spacer element 3.
• External connections (cables) 6 are brazed to them.
• FIG. 2 shows a variant of the conductive structure, in which the two connection points 5 are located on either side of the ends of the part of the spacer element which covers the conductive structure 4. This allows a support extended all the conductive structure and a great total length.
• FIG. 3 shows another variant of the conductive structure, in which the two connection points 5 are in an angle region of the window pane 2.
• the conductive structure described here in the region covered by the spacer element 3, a loop in which two segments of this conductive loop are parallel to each other, both in the region of the surface covered by the spacer element.
• the overall longitudinal extension or the longitudinal direction of the conductive structure 4 is parallel to the pattern of the spacer element 3. Locally, it can, as already mentioned and as is represented here, be in the form of a zigzag or rectilinear, in the form of a loop, or may be any shape that deviates from the straight line
• the conductive structure was not to be disposed under a segment of the spacer element with a non-rectilinear path, for example curved or bent, one would naturally adjust its overall longitudinal extension accordingly.
• a distance is provided between the spacer element and its bonding and the outer edge of the window, or an exceeding of the surface of the window beyond the surface covered by the spacer element.
• this allows the filling of the residual edge slot with another sealant (preferably polysulfide).
• another sealant preferably polysulfide.
• there remains in the region of the conductive structure 4 sufficient room for the electrical connection of the connection points 5 of the conductive structure 4 conducted outside the space framed by the spacer element, in a hidden place at the sight.
• this edge region as well as the regions of contact of the adhesive beads with the glass are still hidden from view by means of opaque flat printing (which is not shown here for simplicity), which is located in below the fittings, directly on the surface of the glass.
• This printing can also be done by screen printing and baking. It can also serve as a base for a fastening agent to be applied optionally ("primary") for bonding the spacer element.
• the entire conductive structure 4 in addition to the connecting lines and the connection points 5 (soldering points), is deposited by screen printing a ceramic baking paste into a high silver content brazing material (more 80% silver) in a thickness of about 0.01 to 0.03 or as much as 0.05 millimeters and in a width of between 0.25 and 1 millimeter.
• This paste is fired by the high temperature heating required for the thermal preload of the glass 2.
• the electrical conductivity is fully sufficient for the described application cases, even with such small cross sections.
• Figure 4 shows a partial section, enlarged to make it lighter, through the edge of the window element 1 looking in the overall longitudinal direction of the conductive structure 4. This is visible only by one face cutting.
• the conductive structure 4 is deposited directly on the surface of the pane 2, so that it is also destroyed with certainty in case of breakage of the pane and thus interrupts the fixed electrical circuit applied.
• an adhesive layer / adhesive bead 3A for assembling the spacer element 3 completely covers the conductive structure 4 under the spacer 3, so that the latter has no contact to the outside, to the intermediate space between the panes and to the spacer element 3 itself.
• the conductive structure 4 is covered by the adhesive bead 3A. Unlike the representation, it may also be slightly wider than the spacer element 3 itself; this larger width can for example be adjusted by laterally moving the glue material during the pressing of the spacer element.
• the connection between the window 2 and the adhesive bead 3A is compromised by the conductive structure.
• the latter consists, in a known manner, of a vitreous material (glass frit with addition of silver), such that it reigns between it and the glue material the same adhesion conditions as between the surface of the glass and the glue material.
• a vitreous material glass frit with addition of silver
• connection with the connection point 5 Only a short segment of the conductive structure 4 leaves, as connection with the connection point 5, the covering with the spacer element 3 or with the adhesive bead 3A. As already mentioned, the edge slot between the spacer element 3 and the outside overhang of the window 2 is filled with an additional sealing compound 7. This also covers the connection point 5 with a brazed outer connection 6 and isolates its connection region to the outside.
• FIG. 5 shows another partial section corresponding to the line VV of FIG. 2, thus also looking in the overall longitudinal direction of the conductive structure 4 in the region covered by the spacer element 3 and the adhesive bead 3A. .
• glue beads 3A are made of butyl rubber, which adheres remarkably and durably to both glass surfaces and metal surfaces, and can be extruded as a cord or uninterrupted coil on the relevant surface of a room.
• the adhesive bead 3A is strongly compressed.
• the material beneath the spacer 3 could also escape laterally outward and there might be no longer sufficient layer thickness for insulation with conventional glue.
• the conductive structure can of course, in the present case, also be realized as shown in Figure 3, in the form of a conductive loop with connection points 5 in the immediate vicinity of one another without abandoning the construction principle according to the invention.
• the spacer element 3 If it is desired to stick the spacer element 3 only in the region of the conductive structure 4 with the adhesive having very high values of electrical insulation, the latter must of course be compatible with the material of the "normal" adhesive bead ". Precisely in the transitions, the tightness of the finished glue bead against penetration of gas and moisture in the insulating composite glazing must be preserved. This can be thought of as achieving seamless transitions between most of the bead of glue and the segment or segments used, as needed, in the crossing region. Naturally, there is a heterogeneity in the transitions even after crushing the bead of glue, which can be visible during careful examination even if the two materials have the same color. However, this can not in any way reduce the seal.
• An additional (secondary) sealing compound for example Thiokol, polysulfide, silicone or polyurethane, is then deposited externally around the spacer and the adhesive layers to provide additional closure of the intermediate space. between the windows, and also to seal the connecting faces located outside.
• This sealing compound is certainly similar to those of the adhesive itself, however this additional sealing material retains a relatively large thickness everywhere, so that the problem of lack of electrical insulation of extraordinarily low layer thickness can not occur here.
• Figure 6 finally shows another partial section considered transverse to the overall longitudinal extension of the conductive structure 4 (in an embodiment similar to Figure 1).
• two pads 3S arranged on either side of the conductive structure 4, which are preferably also embedded entirely in the glue bead 3A.
• the conductive structure amounts to a maximum of 50 ⁇ m above the surface of the window 2, and that therefore the 3S pads require a very small height of about 2 tenths of a millimeter. They can either themselves be screen printed or if necessary be made up of small pieces of a non-conductive (plastic) material, which can be glued to the face of the glass.
• FIG. 6 shows that there can still be a layer of thin adhesive between the pads 3S and the spacer element 3.
• the two studs 3S would support in the manner of a bridge the segment covering the conductive structure, so as to avoid contact between the conductive structure and this segment and also to preserve between them a layer of insulating adhesive sufficiently thick.
• these pads 3S (which also provide for their part the spacer element function) can of course also be placed above the conductive structure 4, substantially like the insulating layer described in the document DE-Cl-199 60 450, which, unlike that, would not require masking over the entire length of the cover. This would be particularly recommended in one embodiment of the conductive structure according to Figure 2, but would be functionally equivalent to the solution illustrated here in Figure 6.

Landscapes

• Engineering & Computer Science (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Joining Of Glass To Other Materials (AREA)
• Securing Of Glass Panes Or The Like (AREA)
• Resistance Heating (AREA)
• Laminated Bodies (AREA)
• Conductive Materials (AREA)

Priority Applications (1)

Applications Claiming Priority (1)

Publications (2)

Family

ID=39473915

Family Applications (1)

Country Status (7)

Family Cites Families (3)

• 2007
  • 2007-09-17 EP EP07848324A patent/EP2198106B1/de active Active
  • 2007-09-17 DK DK07848324.5T patent/DK2198106T3/da active
  • 2007-09-17 ES ES07848324T patent/ES2368096T3/es active Active
  • 2007-09-17 AT AT07848324T patent/ATE513111T1/de active
  • 2007-09-17 PL PL07848324T patent/PL2198106T3/pl unknown
  • 2007-09-17 PT PT07848324T patent/PT2198106E/pt unknown
  • 2007-09-17 WO PCT/FR2007/051951 patent/WO2009037389A1/fr active Application Filing

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events