• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    PLATE WITH ELECTRICAL CONNECTION ELEMENT. The invention relates to a plate with an electrical connection element, comprising: - a glass substrate (1), - an electrically conductive structure (2) with a layer thickness of between 5 109> m and 40 109> m over a substrate region (1) - a connection element (3), and - a layer of a weak solder material (4) that electrically connects the connection element (3) to a partial region (12) of the electrically conductive structure ( 2), where - the connecting element (3) contains at least one ferro-nickel alloy or an ferro-nickel-cobalt alloy - the connecting element (3) is connected on its inner surface to the partial region (12 ) of the electrically conductive structure (2) by means of a contact surface (11), and - the contact surface (11) has no corners.
    公开号:BR112012025061B1
    申请号:R112012025061-2
    申请日:2011-07-04
    公开日:2020-10-13
    发明作者:Bernhard Reul；Harald Cholewa；Andreas Schlarb；Lothar Lesmeister；Mitja Rateiczak；Lothar Schmidt
    申请人:Saint-Gobain Glass France；
    IPC主号:
    专利说明:

    [0001] The invention concerns a glazing with an electrical connection element and an economical and ecological method for its production.
    [0002] The invention also relates to a glazing with an electrical connection element for vehicles with electrically conductive structures such as, for example, heating conductors or antenna conductors. The electrically conductive structures are usually connected with the on-board electrical components through photoelectric conversion elements of soldered electrical connections. Due to the different thermal expansion coefficients of the materials used, mechanical stresses arise during production and operation, which load the glass panes and can break the glass panes.
    [0003] Solders containing lead have a high ductility that can compensate for the mechanical stresses that appear between the electrical connection element and the glass pane by means of plastic deformation. However, solders containing lead must be replaced by unleaded solders within the European Community under the 2000/53 / EG Antique Car Guidelines. The guideline is abbreviated with the acronym ELV (End of life vehicles). In this case, the goal is to eliminate extremely problematic components from products, in the course of the massive expansion of disposable electronic products. These substances are lead, mercury, cadmium and chromium. This refers, among others, to the use of lead-free solder in electrical applications on glass and the introduction of corresponding substitute products for this purpose.
    [0004] EP 1 942 703 A2 exposes an electrical connection element in vehicle glass panes, where the difference in the thermal expansion coefficients of the glass pane and the electrical connection element is <5 x 10-6 / ° Ç. To provide sufficient mechanical stability and processability, it is proposed to use an excess of welding material. The excess welding material leaves the intermediate space between the connecting element and the electrically conductive structure. The excess in welding material produces high mechanical stresses in the glass pane. These mechanical stresses finally lead to the breaking of the glass pane.
    [0005] The purpose of the present invention is to provide a glazing with an electrical connection element and an economical and ecological method for its production, in which critical mechanical stresses in the glazing are avoided.
    [0006] This objective of the present invention is achieved by means of a glazing with a connecting element comprising the following characteristics: - a glass substrate, - an electrically conductive structure with a layer thickness of between 5 pm to 40 pm on a substrate region, - a connecting element, and - a layer of a solder material that electrically connects the connecting element to a partial region of the electrically conductive structure, where - the connecting element contains at least one iron alloy -nickel or a ferro-nickel-cobalt alloy, - the connecting element is connected over its entire surface to the partial region of the electrically conductive structure by means of a contact surface, and - the contact surface has no corners.
    [0007] An electrically conductive structure is applied over the pane. An electrical connection element is electrically connected, over partial regions, to the electrically conductive structure by means of a welding material. The weld material preferably exits with an outlet width of <1 mm from the intermediate space between the connecting element and the electrically conductive structure.
    [0008] In a preferred development, the maximum output width is less than 0.5 mm and especially approximately 0 mm. The maximum outlet width can also be negative, so it is recessed into the intermediate space formed by the electrical connection element and electrically conductive structure, preferably in a concave meniscus.
    [0009] The maximum exit width is defined as the distance between the outer corners of the connection element and the point of passage of the weld material, where the weld material does not exceed a layer thickness of 50 pm.
    [0010] The advantage lies in the reduction of mechanical stresses in the glass, especially in the critical region where a large amount of weld material is present. The first coefficient of thermal expansion is preferably from 8 x 10 '6 / ° C to 9 x 10' 6 Z ° C. The substrate is preferably glass, which preferably has a thermal expansion coefficient of 8.3 x 10'6 / ° C to 9 x 10'6 / ° C in a temperature range of 0 ° C to 300 ° C.
    [0011] The second coefficient of thermal expansion is preferably 8 x 10'6 / ° C to 9 x 10'6 / ° C, especially preferably 8.3 x 10'6 / ° C to 9 x 10'6 / ° C in a temperature range from 0 ° C to 300 ° C.
    [0012] The coefficient of thermal expansion of the connection element can be <4 x 10-6 / ° C.
    [0013] The electrically conductive structure according to the invention preferably has a layer thickness from 8 pm to 15 pm, especially preferably from 10 pm to 12 pm. The electrically conductive structure according to the invention preferably contains silver, especially preferably silver particles and glass chips.
    [0014] The layer thickness according to the solder invention is preferably <7.0 x 10'4 m, especially preferably <3.0 x 10'4 m and especially <0.5 x 10'4 m. The solder material according to the invention preferably contains tin and bismuth, indium, zinc, copper, silver or compositions thereof. The tin fraction in the solder composition according to the invention is from 3% by weight to 99.5% by weight, preferably from 10% by weight to 95.5% by weight, especially preferably 15% by weight at 60 % by weight. The fraction of bismuth, indium, zinc, copper, silver or compositions thereof in the solder composition according to the invention is 0.5% by weight to 97% by weight, preferably 10% by weight to 67% by weight, wherein the fraction in tin, bismuth, indium, zinc, copper or silver can be 0% by weight. The solder composition according to the invention may contain nickel, germanium, aluminum or phosphorus with a fraction of 0% by weight to 5% by weight. The solder composition according to the invention most preferably contains Bi57Sn42Ag1, Bi59Sn40Ag1, ln97Ag3, Sn95,5Ag3,8Cu0,7, Bi67ln33, Bi33ln50Sn17, Sn77,2ln20Ag2,8, Sn95Ag4Cu1, Sn99Cu1, Sn96,5Ag3,5 or mixtures of the themselves. The soldering material according to the invention is preferably lead-free and does not contain any lead or contains only active product supports required for the production of lead.
    [0015] The connecting element according to the invention preferably contains at least 50% by weight to 75% by weight of iron, 25% by weight to 50% by weight of nickel, 0% by weight to 20% by weight of cobalt, 0% by weight to 1.5% by weight of magnesium, 0% by weight to 1% by weight of silicon, 0% by weight to 1% by weight of carbon or 0% by weight to 1% by weight of manganese.
    [0016] The connection element according to the invention preferably contains chromium, niobium, aluminum, vanadium, tungsten and titanium with a fraction of 0% by weight to 1% by weight, molybdenum with a fraction of 0% by weight at 5 % by weight as well as active product supports required by production.
    [0017] The connection element according to the invention preferably contains at least 55% by weight to 70% by weight of iron, 30% by weight to 45% by weight of nickel, 0% by weight to 5% by weight of cobalt, 0% by weight to 1% by weight of magnesium, 0% by weight to 1% by weight of silicon or 0% by weight to 1% by weight of carbon.
    [0018] The connecting element according to the invention preferably still contains at least 50% by weight to 60% by weight of iron, 25% by weight to 35% by weight of nickel, 15% by weight to 20% by weight of cobalt, 0% by weight to 0.5% by weight of silicon, 0% by weight to 0.1% by weight of carbon or 0% by weight to 0.5% by weight of manganese.
    [0019] The connecting element according to the invention is especially preferably partially coated with nickel, tin, copper and / or silver. The connection element according to the invention is most preferably coated with 0.1 pm to 0.3 pm nickel and / or 3 pm to 10 pm silver. The connecting element can be nickel-plated, tinned, copper-plated and / or silver. Ni and Ag improve the current carrying capacity and corrosion stability of the connection element and wetting with the weld material.
    [0020] The connection element according to the invention preferably contains Kovar (FeCoNi) and / or Invar (FeNi) with an Invar thermal expansion coefficient of 0.1 x 10'6 / ° C at 4 x 10'6 / ° C or a maximum Kovar difference of 5 x 10'6 / ° C with respect to the window expansion coefficient.
    [0021] Kovar is an iron-nickel-cobalt alloy, which has a coefficient of thermal expansion of usually approximately 5 x 10'6 / ° C, which is then less than the coefficient of typical metals. The composition contains, for example, 54% by weight of iron, 29% by weight of nickel and 17% by weight of cobalt. For this reason, Kovar is used in the microelectronics region and in microsystem technology as a housing material or as a sub-support. Sub-supports are located, according to the sandwich principle, between the support material itself and the material with most of the time unequivocally higher expansion coefficient. Kovar thus serves as a compensating element, which absorbs and reduces the thermomechanical stresses produced by means of the different thermal expansion coefficients of other materials. In the same way, Kovar is used for metal-glass constructions of electronic components and material transitions in vacuum chambers.
    [0022] Invar is a ferro-nickel alloy with a content of, for example, 36% by weight of nickel (FeNi36). It is a group of alloys and compounds that have the property of having abnormal or partly negative thermal expansion coefficients in certain temperature ranges. Invar Fe65Ni35 contains 65% by weight of iron and 35% by weight of nickel. Up to 1% by weight of magnesium, silicon and carbon are usually bonded in order to modify the mechanical properties. By forming an alloy of 5% by weight of cobalt, the coefficient of thermal expansion α can be further reduced. A designation for the alloy is Inovco, FeNi33Co4,5 with an expansion coefficient α (20 ° C to 100 ° C) of 0.55 x 10 '6 / ° C.
    [0023] If an alloy, such as Invar, is used with a very small absolute thermal expansion coefficient of <4 x 10'6 / ° C, overcompensation of mechanical stresses occurs through non-critical compression stresses on the glass or through non-critical tensile stresses in the alloy.
    [0024] The connection element according to the invention preferably contains ferro-nickel alloys and / or ferro-nickel-cobalt alloys which are thermally post-treated by annealing.
    [0025] Kovar and / or Invar can also be welded, embedded or glued as a compensation plate over a connection element consisting of, for example, steel, aluminum, titanium, copper. As a bimetal, a favorable expansion behavior of the connecting element can be obtained in relation to the glass expansion. The compensation plate is preferably shaped like a hat.
    [0026] The electrical connection element contains a coating of copper, zinc, tin, silver, gold or a combination thereof, preferably silver, on the surface oriented to the weld material. In this way, spreading of the weld material over the coating is prevented and the outlet width is limited.
    [0027] The electrical connection element is connected over its entire surface with a partial region of the electrically conductive structure through a contact surface. In addition, the contact surface has no corners. The contact surface may have an oval structure, preferably an elliptical structure and especially a circular structure. Alternatively, the contact surface may have a convex polygonal shape, preferably a rectangular shape, with rounded corners. The rounded corners have a radius of curvature of r> 0.5 mm, preferably of r> 1 mm.
    [0028] The maximum dimensions of the connection elements are, in the top view, for example preferably 1 mm to 50 mm in length and width and especially preferably 3 mm to 30 mm in length and width and most especially preferably 2 mm to 4 mm wide and 12 mm to 24 mm long.
    [0029] The shape of the electrical connection element can configure weld deposits in the intermediate space of the connection element and the electrically conductive structure. The weld deposits and wetting properties of the weld on the connecting element prevent the weld material from escaping from the intermediate space. Weld deposits can be configured at right angles, rounded or polygonal.
    [0030] The distribution of the welding heat and thus the distribution of the welding material in the welding operation can be defined by means of the shape of the connection element. Welding material flows to the hottest point. The application of energy during the electrical connection of the electrical connection element and electrically conductive structure is preferably carried out with puncture welding, thermal welding, piston welding, preferably laser welding, hot air welding, induction welding, resistance welding and / or with ultrasound.
    [0031] The objective of the invention is further achieved by means of a method for producing a glazing with a connection element, in which: a) soldering material on the connection element is arranged and applied as platelets with layer thickness , fixed volume, shape and arrangement, b) an electrically conductive structure is applied on a substrate, c) the connection element with the weld material is placed on the electrically conductive structure, and d) the connection element with the electrically conductive structure is welded with solder.
    [0032] The solder material is preferably applied beforehand on the connecting elements, preferably as platelets with fixed layer thickness, volume, shape and arrangement on the connecting element.
    [0033] The connecting element is welded or embedded with a metal pane, cord, braided, partially not shown, consisting of, for example, copper and connected to the on-board electrical, also not shown.
    [0034] The connecting element is preferably used in heating panels or glazing with antennas in buildings, especially in automobiles, railways, aircraft or marine vehicles. The connecting element is used to connect the conductive structures of the glazing with electrical systems, which are arranged outside the glazing. Electrical systems are amplifiers, control units or voltage sources.
    [0035] The invention will be explained in more detail on the basis of a drawing and examples of realization. The figures show: figure 1 is a top view over a pane according to the invention with an ellipse-shaped connecting element, figure 2 is a section A-A'through the pane according to figure 1, figure 3 is a section through an alternative glazing according to the invention, figure 4 is a section through another alternative glazing according to the invention, figure 5 is a top view over an alternative embodiment of the connecting element, a figure 6 is a top view over another alternative embodiment of the connection element, figure 7 is a top view over another alternative embodiment of the connection element, figure 8 is a side view of the connection element of figure 7, figure 9 is a section through another alternative glazing according to the invention with a convex connection element, figure 10 is a detailed flow chart of the method according to the invention, and figure 11 is a spatial representation of a connection element shaped like a bridge.
    [0036] Figure 1 and figure 2 respectively show a detail of a heatable glazing 1, according to the invention, in the region of the electrical connection element 3. Glazing 1 is a tempered safety glass, thermally tempered, having 3 mm thick, made of silica-lime-soda glass. The pane 1 is 150 cm wide and 80 cm high. An electrically conductive structure 2 is printed on the pane 1 in the form of a heating conductor structure 2. The electrically conductive structure 2 contains silver particles and glass frits. In the region of the edge of the pane 1, the electrically conductive structure 2 is enlarged to a width of 10 mm and forms a contact surface for the electrical connection element 3. In the region of the edge of the pane 1 there is also a screen printing covering not represented. In the region of the contact surface between the electrical connection element 3 and the electrically conductive structure 2, a welding material 4 is applied, which produces a lasting electrical and mechanical connection between the electrical connection element 3 and the electrically conductive structure 2. O solder material 4 contains 57% by weight of bismuth, 42% by weight tin and 1% by weight of silver. The weld material 4 is completely arranged between the electrical connection element 3 and the electrically conductive structure 2 by means of a predetermined volume and predetermined shape. The weld material 4 has a thickness of 250 µm. An outlet of the weld material 4 from the intermediate space between the electrical connection element 3 and the electrically conductive structure 2, which exceeds a layer thickness t of 50 pm, is observed for a maximum outlet width of b = 0, 5 mm. Electrical connection element 3 is an alloy containing 54% by weight of iron, 29% by weight of nickel and 17% by weight of cobalt. The electrical connection element 3 is formed with an ellipse-shaped base surface. The length of the major axis is 12 mm, the length of the minor axis 5 mm. The material thickness of the connection element 3 is 0.8 mm. By means of the arrangement of the welding material 4, predetermined by the connection element 3 and the electrically conductive structure 2, no critical mechanical stresses are observed in the pane 1. The connection of the pane 1 with the electrical connection element 3 is permanently stable by means of electrically conductive structure 2.
    [0037] Figure 3 shows, in continuation with the embodiment example of figures 1 and 2, an alternative configuration of the connecting element 3 according to the invention. The electrical connection element 3 is provided with a coating containing silver 5 on the surface oriented to the weld material 4. In this way, a propagation of the weld material over the coating 5 is prevented and the outlet width b is limited. The outlet width b of the weld material 4 is less than 1 mm. Due to the arrangement of the weld material 4, no critical mechanical stresses are observed in the pane 1. The connection of the pane 1 with the electrical connection element 3 is permanently stable through the electrically conductive structure 2.
    [0038] Figure 4 shows another embodiment of the glazing 1 according to the invention with a connecting element 3 with an ellipse-shaped base surface. Connection element 3 contains an alloy containing iron with a thermal expansion coefficient of 8 x 10'6 / ° C. The material thickness is 2 mm. In the region of the contact surface of the connecting element 3 with the glass pane 1, a hat-shaped compensation body 6 with a ferro-nickel-cobalt alloy is applied. The maximum layer thickness of the hat-shaped compensation body 6 is 4 mm. The coefficients of thermal expansion of the connection element 3 can be adapted to the requirements of the glazing 1 and the weld material 4 by means of the compensating body. The cap-shaped compensation body 6 leads to an improved thermal flow during production to the solder connection 4. Heating is mainly carried out in the center of the contact surface. The outlet width b of the weld material 4 can be further reduced. Due to the reduced outlet width b of <1 mm and the adapted expansion coefficients, the thermal stresses in the pane 1 can be further reduced. The thermal stresses in the pane 1 are non-critical and a lasting electrical and mechanical connection between the connecting element 3 and the pane 1 is provided through the electrically conductive structure 2.
    [0039] Figure 5 shows a top view over an alternative embodiment of the connection element according to invention 3. The connection element 3 is rectangular shaped and has a width of 5 mm and a length of 14 mm. The corners of the rectangle are respectively rounded with a circular segment with a radius of curvature of, for example, 1 mm. In addition, a connecting cable 8 is welded to the connecting element 3 via a welding region 7. The welding region 7 has a width of 3 mm and a length of 6 mm. Connecting cable 8 is a twisted cable made of thin, tinned copper wires. However, cord or wire cables can also be used as connection cable 8. Alternatively, metal bushings, plug connectors or crimp connections can also be electrically conductive connected with connection element 3. In particular, the connection element connection 3 can also be configured as a clamping bush or one or several part crimping element.
    [0040] Figure 6 shows a top view over another embodiment of the connecting element according to the invention 3. The connecting element 3 is shaped in a rectangle, in which the two smaller sides of the rectangle are shaped in semicircles. The connecting element is 5 mm wide and 14 mm long. The welding region 7 has a width of 3 mm and a length of 6 mm. Figure 7 and Figure 8 show another embodiment of the connecting element according to the invention 3, with a connecting tab 9. The contact surface 11 of the connecting element 3 is made in the form of a circle. The radius of the circle is 4 mm. The connection tongue 9 is connected with a connection cable 8 via a welding region 7. Alternatively, the connection tongue 9 can also be formed as a flattened connector as well as in the form of a clamping bushing or crimp connection. The connecting tab 9 has, in this embodiment, two notches 10, 10 '. These notches 10, 10 'serve to reduce the material of the connection tongue 9. This leads to a spring action and thus to the damping of forces that are transmitted to the welding contact via the connection cable 8.
    [0041] Figure 9 shows a section through another embodiment of a connecting element (3) according to the invention. The connecting element (3) has a bulge (13) in the center. The weld material (4) is thickened in the bulging region (13).
    [0042] Figure 10 shows in detail an example for the method according to the invention for the production of a glazing with an electrical connection element 3. As a first step, it is necessary to position the welding material 4 according to the shape and the volume. The welding material 4 is positioned on the electrical connection element 3. The electrical connection element 3 is arranged with the welding material 4 on the electrically conductive structure 2. A lasting connection of the electrical connection element 3 is made with the structure electrically conductive 2 and thus the glazing 1 by applying energy. Example:
    [0043] Test samples were produced with pane 1 (thickness 3 mm, width 150 cm and height 80 cm), with the electrically conductive structure 2 in the form of a heating conductor structure, the electrical connection element 3, the silver layer on the contact surfaces of the connecting element 3 and the welding material 4. The welding material 4 was previously applied as platelets with fixed layer thickness, fixed volume and shape on the contact surface 11 of the connecting element 3. The connecting element 3 was applied on the electrically conductive structure 2 with the solder material applied 4. The connecting element was welded on the electrically conductive structure 2 at a temperature of 200 ° C and for a duration of treatment 2 seconds. An exit of the weld material 4 from the intermediate space between the electrical connection element 3 and the electrically conductive structure 2, which exceeded a layer thickness of 50 pm, was observed only at a maximum exit width of b = 0 , 5 mm. The measurements and compositions of the electrically conductive structure 2, the electrical connection element 3, the silver layer on the contact surfaces of the connection element 3 and the welding material 4 can be seen from table 1 and figures 1 and 2 and of the description of the figures.
    [0044] In all samples it can be seen, at a temperature difference of + 80 ° C to -30 ° C, that no glass substrate 1 has broken or been damaged. It can be shown that, shortly after welding, this glazing 1 with welded connection element 3 was stable with respect to the sudden drop in temperature.
    [0045] In addition, test samples were performed with a second composition of the electrical connection element 3. The detailed values of the dimensions and compositions of the electrically conductive structure 2, of the electrical connection element 3, of the silver layer on the surfaces of contact of the connecting element 3 and the soldering material 4 can be seen from Table 2. It can also be seen here that, in a temperature difference of + 80 ° C to -30 ° C, no glass substrate 1 has broken or was damaged. It can be shown that, shortly after welding, this glazing 1 with welded connection element 3 was stable with respect to the sudden drop in temperature. Table 1

    Table 2
    Comparative example 1:
    [0046] Comparative example 1 was performed exactly like the example, with the following differences: The measurements and components of the electrically conductive structure 2, the electrical connection element 3, the metal layer on the contact surfaces of the connection element 3 and solder material 4 can be seen from Table 3. The solder material 4 was not previously applied according to the state of the art as platelets on the contact surface of the connection element 3. The connection element 3 was welded with the electrically conductive structure 2 according to the conventional method. At the exit of the weld material 4 from the intermediate space between the electrical connection element 3 and the electrically conductive structure 2, which exceeded a layer thickness t of 50 pm, an average exit width b = 2 mm to 3 was obtained mm.
    [0047] On the occasion of a sudden temperature difference from + 80 ° C to -30 ° C it was observed that the glass substrate 1 showed damage mainly after welding. Table 3

    Comparative example 2:
    [0048] Comparative example 2 was performed exactly like the example with the following differences. The measurements and components of the electrically conductive structure 2, the electrical connection element 3, the metal layer on the contact surfaces of the connection element 3 and the welding material 4 can be seen from table 4. The welding material 4 does not it was previously applied according to the state of the art as platelets on the contact surface of the connection element 3. The connection element 3 was welded with the electrically conductive structure 2 according to the conventional method. At the exit of the weld material 4 from the intermediate space between the electrical connection element 3 and the electrically conductive structure 2, which exceeded a layer thickness t of 50 pm, an average exit width b = 1 mm to 1 was obtained , 5 mm.
    [0049] On the occasion of a sudden temperature difference from + 80 ° C to -30 ° C it was observed that the glass substrate 1 showed damage mainly after welding. Table 4


    [0050] In general, higher tensile stresses on the glass lead to a high risk of splintering or chipping on the glass. For this reason, the influence of the contact surface 11 between the connecting element 3 and the partial region 12 of the electrically conductive structure 2 was investigated by means of computer simulations. In this case, the tensile stresses were calculated during the cooling of panes with connection elements of different geometries. The different connection elements were bridge-shaped (B) and circle-shaped (K).
    [0051] Figure 11 shows a perspective representation of the connecting element in the form of bridge 3 (B). The bridge-shaped connecting element (B) was 4 mm wide and 24 mm long. The contact surfaces 11 of the bridge-shaped connecting element 3 (B) were each 4 mm wide and 6 mm long. The circle-shaped connecting element (K) had a radius of 4 mm.
    [0052] As material for the connection elements, a Kovar alloy with a thermal expansion coefficient α of 5.2 x 10’6 / ° C and an Invar alloy with 1.7 x 10’6 / ° C was considered. The material thickness of the connection elements was 0.8 mm respectively. As substrate, a glass pane with a material thickness of 2 mm was considered. The material thickness of weld layer 4 was 10 µm, respectively.
    [0053] In the computer simulation, the tensile stresses in the glass pane in a cooling from + 20 ° C to - 40 ° C were calculated. The calculated maximum tensile stresses are listed in Table 5. Table 5

    [0054] The maximum tensile stresses depend strongly on the shape of the connection element. Thus, the maximum tensile stresses in the glass pane in circle-shaped connection elements (K) made of Kovar or Invar were respectively 46% lower than in the bridge-shaped connection elements (B) made of Kovar or Invar , see table 5.
    [0055] It was evident that glazing according to the invention with glass substrates 1 and electrical connection elements according to invention 3 showed better stability against sudden temperature differences.
    [0056] This result was unexpected and surprising for those skilled in the art. List of Reference Signs (1) Glazing / Glass (2) Electrically Conductive Ag Structure / Screen Printing (3) Electrical Connection Element / Fe-Ni Alloy Kovar (4) Welding Material (Bi57Sn42Ag1) (5) Moisture Layer / Ag sheath (6) Compensating body (7) Welding region (8) Connecting cable (9) Connecting tab (10) Notch (11) Contact surfaces of (2) and (3) (12) Region partial of (2) (13) Bulging b Maximum outlet width of the welding material r Radius of curvature t Limiting thickness of the welding material AA 'Slitting line
    权利要求:
    Claims (14)
    [0001]
    1. Glazing with an electrical connection element, comprising: - a glass substrate (1), - an electrically conductive structure (2) with a layer thickness of between 5 pm to 40 pm over a region of the substrate (1), - a connection element (3), and - a layer of a lead-free solder material (4) that electrically connects the connection element (3) to a part (12) of the electrically conductive structure (2), where - the connecting element (3) contains at least one ferro-nickel alloy or an ferro-nickel-cobalt alloy, - the connecting element (3) is connected to the electrically conductive part (12) of the structure (2) by middle of a contact surface (11) over its entire surface, and - the contact surface (11) has no corners, where the connecting element (3) has a bulge (13) in the center and the weld material ( 4) it is thickened in the bulging region (13), characterized by the fact that the connecting element (3) contains at least 50% by weight to 75% by weight of iron, 25% by weight to 50% by weight of nickel, 0% by weight to 20% by weight of cobalt, 0% by weight to 1.5% by weight of magnesium, 0% by weight to 1% by weight of silicon, 0% by weight to 1% by weight of carbon or 0% by weight to 1% by weight of manganese.
    [0002]
    Glazing according to claim 1, characterized in that the contact surface (11) has an oval structure, preferably an elliptical structure and, in particular, a circular structure.
    [0003]
    Glazing according to claim 1, characterized by the fact that the contact surface (11) has a convex polygonal shape, preferably a rectangular shape, with rounded corners, and the rounded corners have a radius of curvature of r> 0 , 5 mm.
    [0004]
    Glazing according to any one of claims 1 to 3, characterized in that the connecting element (3) contains at least 55% by weight to 70% by weight of iron, 30% by weight to 45% by weight nickel, 0% by weight to 5% by weight of cobalt, 0% by weight to 1% by weight of magnesium, 0% by weight to 1% by weight of silicon or 0% by weight to 1% by weight of carbon .
    [0005]
    5. Glazing according to claim 4, characterized by the fact that the glass substrate (1) has a first thermal expansion coefficient, the connecting element (3) has a second thermal expansion coefficient, in which the difference between the first and second coefficient of thermal expansion is> 5 x 10'6 / ° C
    [0006]
    Glazing according to any one of claims 1 to 3, characterized in that the connecting element (3) contains at least 50% by weight to 60% by weight of iron, 25% by weight to 35% by weight nickel, 15% by weight to 20% by weight of cobalt, 0% by weight to 0.5% by weight of silicon, 0% by weight to 0.1% by weight of carbon or 0% by weight to 0, 5% by weight of manganese.
    [0007]
    7. Glazing according to claim 6, characterized by the fact that the glass substrate (1) has a first coefficient of thermal expansion, the connecting element (3) has a second coefficient of thermal expansion and the difference between the first and the second coefficient of thermal expansion is <5 x 10_ 6 / ° C.
    [0008]
    Glazing according to any one of claims 1 to 7, characterized in that the weld material (4) flows with an outlet flow width b of <1 mm, preferably <0.5 mm and particularly approximately 0 mm, from the intermediate space between the connecting element (3) and the electrically conductive structure (2).
    [0009]
    Glazing according to any one of claims 1 to 8, characterized in that the solder material (4) contains tin and bismuth, indium, zinc, copper, silver or compositions thereof.
    [0010]
    10. Glazing according to claim 9, characterized by the fact that the proportion of tin in the weld material (4) is from 3% by weight to 99.5% by weight and the proportion of bismuth, indium, zinc, copper , silver or compositions thereof is 0.5% by weight to 97% by weight.
    [0011]
    11. Glazing according to any one of claims 1 to 10, characterized by the fact that the connecting element (3) is coated with nickel, tin, copper and / or silver.
    [0012]
    12. Glazing according to claim 11, characterized by the fact that the connecting element (3) is coated with 0.1 pm to 0.3 pm nickel and / or 3 pm to 10 pm silver.
    [0013]
    13. Method for producing a glazing with a connecting element (3) as defined in any one of claims 1 to 12, characterized by the fact that: a) welding material (4) is arranged and applied over the connecting element (3) as platelets with fixed layer thickness, volume, shape and arrangement, b) an electrically conductive structure (2) is applied on a substrate (1), c) the connecting element (3) with the weld material ( 4) is placed on the electrically conductive structure (2), and d) the connecting element (3) is welded to the electrically conductive structure (2).
    [0014]
    14. Use of a glazing with an electrical connection element as defined in any one of claims 1 to 12, characterized by the fact that it is like a vehicle glazing in means of transport for transit on land, in the air or in water, especially in vehicles motor vehicles, for example, as a windshield, rear window, side window and / or glass roof.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112012025061B1|2020-10-13|pane with an electrical connection element, method for producing a pane with an electrical connection element and use of a pane with an electrical connection element
    US11217907B2|2022-01-04|Disk having an electric connecting element
    JP6225155B2|2017-11-01|Window glass with electrical connection elements
    JP6584465B2|2019-10-02|GLASS GLASS PROVIDED WITH ELECTRICAL CONNECTION MEMBER AND CONNECTION BRIDGE AND METHOD FOR PRODUCING THE SAME
    BR112015005357B1|2021-08-24|PANEL COMPRISING ELECTRICAL CONNECTION ELEMENT
    KR101711314B1|2017-02-28|Disk having an electric connecting element and compensator plates
    AU2014344091B2|2017-07-13|Disc having at least two electrical connection elements and connecting conductors
    MX2013013015A|2014-01-31|Pane comprising an electrical connection element.
    KR101999468B1|2019-07-11|A wafer having an electrical connection element and a connecting element mounted thereto
    同族专利:
    公开号 | 公开日
    PT2594109T|2017-06-14|
    JP5813110B2|2015-11-17|
    MY164268A|2017-11-30|
    EA201390096A1|2013-05-30|
    ZA201208418B|2013-07-31|
    KR20130094769A|2013-08-26|
    US9385437B2|2016-07-05|
    CN102972092A|2013-03-13|
    AU2011278494C1|2014-11-20|
    AU2011278494B2|2014-01-09|
    ES2623795T3|2017-07-12|
    PL2594109T3|2017-08-31|
    US20130043066A1|2013-02-21|
    EA025251B1|2016-12-30|
    JP2013532116A|2013-08-15|
    EP2594109B1|2017-04-12|
    MX2013000023A|2013-02-01|
    AU2011278494A1|2012-11-15|
    KR101924652B1|2018-12-03|
    CN102972092B|2018-03-09|
    WO2012007303A1|2012-01-19|
    BR112012025061A2|2016-06-21|
    CA2795561C|2017-06-27|
    CA2795561A1|2012-01-19|
    US20160309588A1|2016-10-20|
    EP2594109A1|2013-05-22|
    MA34372B1|2013-07-03|
    EP2408260A1|2012-01-18|
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    法律状态:
    2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-07-09| B06T| Formal requirements before examination [chapter 6.20 patent gazette]|
    2019-12-10| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2020-05-12| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-10-13| 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 04/07/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    2021-05-11| B21F| Lapse acc. art. 78, item iv - on non-payment of the annual fees in time|Free format text: REFERENTE A 10A ANUIDADE. |
    2021-08-31| B24J| Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)|Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2627 DE 11-05-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP10169372.9|2010-07-13|
    EP10169372A|EP2408260A1|2010-07-13|2010-07-13|Glass pane with electric connection element|
    PCT/EP2011/061195|WO2012007303A1|2010-07-13|2011-07-04|Disc comprising an electrical connection element|
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