EP2198106B1 - Verglasungselement mit stromleitstruktur - Google Patents

Verglasungselement mit stromleitstruktur Download PDF

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Publication number
EP2198106B1
EP2198106B1 EP07848324A EP07848324A EP2198106B1 EP 2198106 B1 EP2198106 B1 EP 2198106B1 EP 07848324 A EP07848324 A EP 07848324A EP 07848324 A EP07848324 A EP 07848324A EP 2198106 B1 EP2198106 B1 EP 2198106B1
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EP
European Patent Office
Prior art keywords
glazing
conductive structure
spacer element
element according
pane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP07848324A
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English (en)
French (fr)
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EP2198106A1 (de
Inventor
Frank Rubbert
Hubert Hauser
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.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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Filing date
Publication date
Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Priority to PL07848324T priority Critical patent/PL2198106T3/pl
Publication of EP2198106A1 publication Critical patent/EP2198106A1/de
Application granted granted Critical
Publication of EP2198106B1 publication Critical patent/EP2198106B1/de
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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
  • EP-B1-0 058 348 to provide on at least one of the windows a conductive electrical structure in the region of the surface framed by the spacer element (field of view) and to prestress this window.
  • 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.
  • the document DE-C1-199 60 450 discloses, from the above solution, an isolation of the line segments located below the spacer element by means of a plastic layer, which may for example be a thin film, assembled by force complementarity or material on the surface of the glass after prestressing.
  • a plastic layer which may for example be a thin film, assembled by force complementarity or material on the surface of the glass after prestressing.
  • the thin film At the same time, insulation forms a support film for fittings made from a flat conductor.
  • the document DE-A1-40 11,541 discloses a prestressed alarm glass 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 discloses an insulating glass warning window, 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 resistance to breakdown with test voltages of up to 1000 V.
  • the adhesives used up to now 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.
  • 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 document CA 920683 A1 discloses a glazing unit comprising a first tempered glass sheet, a second glass sheet and a spacer extending between the two glass sheets along their periphery.
  • the glazing also includes an electrically conductive layer, connected to an alarm and attached to an inner edge surface of the tempered glass sheet. A layer of glue is deposited between the spacer and the inner edge surface of the glass sheets.
  • 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.
  • the protection of the conductive structure against moisture which causes corrosion and short circuits is maintained at a high level.
  • 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 Documents DE-A1-103 58 316 or DE-A1-40 11,541 ).
  • the conductive structure can then also be designed as a generally rectilinear conductive path (possibly in sinuous or corrugated 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 easily results in the height or the necessary elevation of the aforementioned pads 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 in a similar way to the solution already mentioned in the document DE-C1-199 60 450 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 install the spacer element by completely completely squashing the glue material actually on the studs, but there may also remain 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. 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 (electrical dormant) for breaking the window is retained. At the same time, the demand for an insulation resistance of at least 10 M ⁇ can be satisfied.
  • a window element 1 comprises a prestressed window 2 and a spacer element 3, which is indicated in the Figures 1 to 3 only by dashed lines in its line parallel to the outer edges of the pane 2.
  • the spacer element 3 assembles the pane 2, using adhesive beads, in the usual way to another window pane. glass or plastic, into an insulating glass (see Figures 4 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.
  • the Figure 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 an extended support of any the conductive structure and a great total length.
  • the Figure 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, loop in which two segments of this conductive loop are parallel to each other, both in the area 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 it is represented here, be in the form of a zigzag or rectilinear, in the form of a loop, or also have any shape deviating from the straight line (undulations, meanders).
  • a general request is only that it does not leave the region covered by the spacer element 3 or by its bonding, and that its length is greater than the size of the (relatively small) fragments produced during the breaking of the window prestressing.
  • the conductive structure should not 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.
  • 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 an attachment agent to be applied optionally ("primary") for gluing 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.
  • the Figure 4 shows a partial section, enlarged to make it clearer, through the edge of the window element 1 looking in the overall longitudinal direction of the conductive structure 4. This is visible only by a cutting face.
  • 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.
  • the Figure 5 shows another partial section corresponding to the line VV of the Figure 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 this case, also be realized as shown in FIG. Figure 3 in the form of a conductive loop with connection points 5 in close proximity to 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.
  • the spacer element can be assembled to the other glass in the usual manner tested with a bead of peripheral glue, which must not have particular electrical insulation properties.
  • An additional (secondary) sealing compound for example Thiokol, polysulfide, silicone or polyurethane, is then deposited externally around the spacer element and the adhesive layers in order 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.
  • the Figure 6 shows finally another partial section viewed transversely to the overall longitudinal extension of the conductive structure 4 (in an embodiment similar to the 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.
  • the Figure 6 shows that there can still remain a thin layer of glue between the pads 3S and the spacer element 3.
  • the two pads 3S would support in the manner of a bridge the segment covering the structure conductive, 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-C1-199 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 the 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)
  • Conductive Materials (AREA)
  • Laminated Bodies (AREA)

Claims (14)

  1. Glasscheibenelement (1), das wenigstens eine vorgespannte Glasscheibe (2) umfasst, deren Oberfläche eine leitende elektrische Struktur (4) trägt, die an elektrische Anschlusspunkte (5) am Rand der Glasscheibe (2) angeschlossen ist, um sie nach außen zu verbinden, wobei
    • die Glasscheibe (2) als Bestandteil eines Mehrfach- oder Isolierfensterelements vorgesehen ist, das von wenigstens einer weiteren Glasscheibe (2`) und einem rahmenförmigen Abstandselement gebildet ist, das das Sichtfeld des Glasscheibenelements umgibt,
    • das Abstandselement (3), das mit der die leitende Struktur (4) tragenden Oberfläche der Glasscheibe (2) mittels eines Klebstoffstrangs (3A) verbunden ist, wenigstens Teile der leitenden Struktur (4) bedeckt, wobei die leitende Struktur (4) selbst außerhalb des Sichtfeldes des Glasscheibenelements (1) im Wesentlichen oder in Gänze im Bereich der durch das Abstandselement (3) und den Klebstoffstrang mit hohem elektrischen Widerstand (3A) bedeckten Oberfläche angeordnet ist, dadurch gekennzeichnet, dass der Klebstoff einen hohen elektrischen Widerstand aufweist und dass zwischen dem Abstandselement (3) und der Oberfläche der Glasscheibe (2), im Bereich der leitenden Struktur (4) Klötzchen (3S) vorgesehen sind, die die Annäherung des Abstandselements (3) während des Pressens der Klebstoffschicht (3A) begrenzen, wobei die Klötzchen (3S) neben der leitenden Struktur (4) angeordnet sind.
  2. Glasscheibenelement nach Anspruch 1, dadurch gekennzeichnet, dass die leitende Struktur (4) sich insgesamt parallel zum Verlauf des Abstandselements (3) erstreckt.
  3. Glasscheibenelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die leitende Struktur (4) in Form einer insgesamt durchgehenden leitenden Spur mit zwei Anschlusspunkten (5), die an ihren Enden mit einem der Länge der leitenden Spur entsprechenden Abstand angeordnet sind, oder in Form einer Schleife mit nah beieinander gelegenen Anschlusspunkten ausgebildet ist.
  4. Glasscheibenelement nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die leitende Struktur (4) wenigstens abschnittsweise einen gewellten, zickzackförmigen, gewundenen oder in anderer Weise von ihrer Gesamtlängserstreckung abweichenden Verlauf aufweist.
  5. Glasscheibenelement nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die gesamte Isolierung zwischen der leitenden Struktur (4) und dem Abstandselement (3) einen elektrischen Widerstand von wenigstens 10 MΩ aufweist.
  6. Glasscheibenelement nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass zwischen der leitenden Struktur (4) und dem Abstandselement (3), insbesondere zwischen der leitenden Struktur (4) und dem Klebstoffstrang (3A), wenigstens eine weitere dünne Isolierschicht aus einem nicht elektrisch leitenden Material, beispielsweise aus Polyimid oder aus Polyethylen vorgesehen ist.
  7. Glasscheibenelement nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der im Bedeckungsbereich liegende Abschnitt des Klebstoffstrangs mit hohem elektrischen Widerstand (3A), in situ zwischen den Enden eines sich hier anschließenden Klebstoffstrangs aus einem anderen Material extrudiert wird.
  8. Glasscheibenelement nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass wenigstens der im Bedeckungsbereich liegende Abschnitt des Klebstoffstrangs (3A) aus rußfreiem Butylkautschuk besteht.
  9. Glasscheibenelement nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass seine leitende Struktur (4) mittels Siebdruck, Tintenstrahldruck oder Extrudieren einer entsprechenden elektrisch leitenden Paste auf der Oberfläche der Glasscheibe erzeugt wird.
  10. Glasscheibenelement nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die leitende Struktur (4) durch eine Wärmebehandlung, insbesondere anlässlich der thermischen Vorspannung der Glasscheibe (2) gehärtet wird.
  11. Glasscheibenelement nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die leitende Struktur (4) mit Anschlusspunkten (5) versehen ist, die außerhalb der durch das Abstandselement (3) eingerahmten Oberfläche der Glasscheibe gelegen sind.
  12. Glasscheibenelement nach Anspruch 11, dadurch gekennzeichnet, dass die Anschlusspunkte (5) in einem einzigen Arbeitsschritt mit der leitenden Struktur (4) ausgebildet werden.
  13. Glasscheibenelement nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass eine weitere (sekundäre) Dichtungsmasse (7) die der Außenseite des Abstandselements (3) zugewandte Fläche am Umfang um das Glasscheibenelement (1) herum bedeckt.
  14. Glasscheibenelement nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Glasscheibe (2) und das Abstandselement (3) mit einer weiteren Fensterscheibe (2') aus einer Mehrfach- oder Isolierfensterverglasung verbunden sind.
EP07848324A 2007-09-17 2007-09-17 Verglasungselement mit stromleitstruktur Active EP2198106B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07848324T PL2198106T3 (pl) 2007-09-17 2007-09-17 Element szyby ze strukturą elektryczną przewodzącą

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR2007/051951 WO2009037389A1 (fr) 2007-09-17 2007-09-17 Element de vitre avec une structure electrique conductrice

Publications (2)

Publication Number Publication Date
EP2198106A1 EP2198106A1 (de) 2010-06-23
EP2198106B1 true EP2198106B1 (de) 2011-06-15

Family

ID=39473915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07848324A Active EP2198106B1 (de) 2007-09-17 2007-09-17 Verglasungselement mit stromleitstruktur

Country Status (7)

Country Link
EP (1) EP2198106B1 (de)
AT (1) ATE513111T1 (de)
DK (1) DK2198106T3 (de)
ES (1) ES2368096T3 (de)
PL (1) PL2198106T3 (de)
PT (1) PT2198106E (de)
WO (1) WO2009037389A1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA920683A (en) 1970-10-16 1973-02-06 Gelinas Jean-Paul Sealed glazing unit with alarm device
DE10154558C1 (de) * 2001-11-07 2003-05-15 Saint Gobain Scheibenelement mit einer elektrischen Leiterstruktur und Verfahren zu seiner Herstellung
DE10358316A1 (de) * 2003-12-12 2005-07-14 Interpane Sicherheitsglas Gmbh & Co Kg Mehrscheiben-Verglasung mit Alarm-Leiterschleife

Also Published As

Publication number Publication date
DK2198106T3 (da) 2011-10-03
ATE513111T1 (de) 2011-07-15
PL2198106T3 (pl) 2011-11-30
ES2368096T3 (es) 2011-11-14
PT2198106E (pt) 2011-09-22
EP2198106A1 (de) 2010-06-23
WO2009037389A1 (fr) 2009-03-26

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