Laminated glass pane for a vehicle, panoramic glass roof with a corresponding laminated glass pane and vehicle with a corresponding panoramic glass roof

Abstract

The invention relates to a laminated glass pane (4) for a vehicle (2), wherein - the laminated glass pane (4) has at least one outer glass pane (5) and one inner glass pane (6), - an infrared-reflecting coating (9) is applied to an inner side (8) of the outer glass pane (5), which extends to an outer side (11) of the inner glass pane (6), characterized in that - the laminated glass pane (4) has an additional pane (13) different from the inner and outer glass panes (5, 6), the inner glass pane (6) being arranged between the outer glass pane (5) and the additional pane (13), - the additional pane (13) is arranged at a distance from an inner side (14) of the inner glass pane (6), so that an air gap (15) is formed between the inner glass pane (6) and the additional pane (13).

Description

[0001] The invention relates to a laminated glass pane for a vehicle, wherein the laminated glass pane comprises at least one outer glass pane and one inner glass pane. An infrared-reflecting coating is applied to an inner side of the outer glass pane, which extends to an outer side of the inner glass pane.

[0002] Furthermore, the invention relates to a panoramic glass roof for a vehicle.

[0003] Furthermore, the invention relates to a vehicle with a panoramic glass roof.

[0004] Various laminated glass panes suitable for vehicle windows are known from the state of the art. Today, the automotive industry demands high standards in terms of thermal insulation and optical properties, such as electromagnetic wave permeability. Such special laminated glass panes are particularly interesting for use in vehicle roofs. Such laminated glass panes can be used for vehicle roofs, especially panoramic glass roofs.

[0005] For example, DE 10 2007 054 047 9 discloses a laminated glass pane for a windshield comprising at least two glass panes. Here, an inner glass pane facing the vehicle interior has a heat-insulating property, which is achieved by means of a layer, in particular an indium tin oxide layer, applied to the entire surface of the glass pane.

[0006] An object of the present invention is to provide a laminated glass pane for panoramic glass roofs of vehicles so that thermal, acoustic and / or energetic properties in a vehicle interior of a vehicle having a panoramic glass roof can be improved.

[0007] This problem is solved by a laminated glass pane, a panoramic glass roof, and a vehicle according to the independent patent claims. Useful further developments arise from the dependent patent claims.

[0008] One aspect of the invention relates to a laminated glass pane for a vehicle, wherein the laminated glass pane has at least one outer glass pane and one inner glass pane, and an infrared-reflecting coating is applied to an inner side of the outer glass pane, which extends to an outer side of the inner glass pane. The laminated glass pane has an additional pane that is different from the inner and outer glass panes, wherein the inner glass pane is arranged between the outer glass pane and the additional pane. The additional pane is arranged at a distance from an inner side of the inner glass pane, such that an air gap is formed between the inner glass pane and the additional pane.

[0009] The proposed laminated glass pane can be advantageously used in vehicles and in particular in panoramic glass roofs. If the laminated glass pane is correctly installed in a vehicle, in particular in a panoramic glass roof, better thermal and acoustic insulation of the vehicle interior can be achieved. By arranging the additional layer compared to the inner glass pane, a specially designed air gap can be created. Depending on the application of the laminated glass pane, this air gap can be a few millimeters thick. This must be individually adjusted depending on the structure of the laminated glass pane and the use of the laminated glass pane. Better thermal and acoustic insulation can be achieved through the additional pane and in particular through the formed air gap.When laminated glass is used in a vehicle's panoramic glass roof, the heating and cooling performance of the vehicle's air conditioning system can be reduced, as the use of laminated glass in the panoramic glass roof provides better thermal insulation. This can reduce the vehicle's energy consumption.

[0010] Furthermore, acoustic insulation can be improved so that the acoustic properties inside the vehicle are more pleasant and, in particular, more comfortable for the vehicle's passengers.

[0011] When the laminated glass pane is installed as intended or in a proper installation situation on a vehicle's panoramic glass roof, the outer glass pane faces the vehicle's surroundings. In contrast, the inner glass pane faces the vehicle's interior. The outer glass pane, the inner glass pane, and the additional pane can be viewed as a stack. In this case, the additional pane is arranged on the laminated glass pane and / or in the laminated glass pane, so that when the laminated glass pane is installed as intended on a vehicle's panoramic glass roof, the additional pane faces the vehicle interior. In an example, the inner glass pane is located between the outer glass pane and the additional pane.

[0012] A further aspect of the invention relates to a panoramic glass roof for a vehicle comprising at least one laminated glass pane according to the previous aspect or an advantageous development thereof.

[0013] A further aspect of the invention relates to a vehicle with a panoramic glass roof according to the previous aspect or an advantageous development thereof.

[0014] Advantageous developments of one aspect of the invention can be considered advantageous developments of another aspect or all other aspects. The same applies in reverse.

[0015] Further advantages, features, and details of the invention will become apparent from the following description of a preferred embodiment and from the drawings. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures, can be used not only in the respective specified combinations, but also in other combinations or on their own, without departing from the scope of the invention.

[0016] The following figures show: Fig. 1 an exemplary view of a vehicle interior and a panoramic glass roof of a vehicle; Fig. 2 an exemplary structure or layer structure of a laminated glass pane for the panoramic glass roof; Fig. 3 an example view from below of the panoramic glass roof; Fig. 4 a schematic sectional view of an installation situation of the panoramic glass roof or the laminated glass pane; and Fig. 5 a schematic additional extension of the function of the laminated glass pane in combination with the panoramic glass roof starting from Fig. 4.

[0017] In the figures, identical or functionally identical elements are provided with the same reference numerals.

[0018] In the Fig. Figure 1 shows a schematic part or a schematic partial view of a vehicle interior 1 or a passenger compartment of a vehicle 2. The vehicle 2 can be a passenger car, a truck, or a bus.

[0019] As in the Fig. 1, the vehicle 2 may have a panoramic glass roof 3. Such a panoramic glass roof 3 can, in particular, increase the comfort and / or well-being of the vehicle passengers, since, for example, more sunlight can enter the vehicle interior 1.

[0020] However, such a panoramic glass roof 3 can provide increased cooling or heating performance of an air conditioning system due to the larger glass surface. To remedy this, the panoramic glass roof 3 comprises at least one laminated glass pane 4 or several such laminated glass panes. Such laminated glass panes, known in the prior art, can improve the thermal properties and, in particular, the insulating properties of a panoramic glass roof.

[0021] To improve the thermal and, in particular, acoustic properties of the panoramic glass roof 3, the laminated glass pane 4 is specially designed. The laminated glass pane, in particular according to the invention, can improve the heating and cooling performance of an air conditioning system of the vehicle 2 for cooling the vehicle interior 1 and for heating the vehicle interior 1, respectively. Furthermore, acoustic properties can be improved, so that acoustic noises from outside the vehicle 2 are less audible in the vehicle interior 1.

[0022] In the Fig. 2 shows a schematic structure of the laminated glass pane 4. As schematically shown here, the laminated glass pane 4 has a layered structure or a stacked structure. The laminated glass pane 4 has at least one outer glass pane 5 and an inner glass pane 6. The outer glass pane 5 is designed in particular such that it is directed outwards towards the vehicle's surroundings 7. Thus, when the laminated glass pane 4 is used in the panoramic glass roof 3, the outer glass pane 5 is directed outwards, i.e. towards the vehicle's surroundings 7. In contrast, the inner glass pane 6 is directed towards the vehicle interior 1 and in particular towards the vehicle interior components, such as seats or consoles. For better thermal properties, in particular for better thermal insulation, an infrared-reflecting coating 9 or an infrared-reflecting layer is applied to an inner side 8 of the outer glass pane 5.The inner side 8 of the inner glass pane of the outer glass pane 5 is arranged, in particular, opposite an outer side 10 of the outer glass pane 5. Thus, the outer side 10 is directly exposed to external influences related to the vehicle environment 7.

[0023] Optionally, an intermediate film 12 can be arranged or attached between the infrared-reflecting coating 9 and an outer side 11 of the inner glass pane 6. This intermediate film 12 can be a polyvinyl butyral film, also known as PVB film. This PVB film serves as a protective film in the laminated glass pane 4, as such a PVB film is characterized by a splinter-binding effect and high tear resistance.

[0024] Furthermore, the laminated glass pane 4 has an additional pane 13 which is different from the inner and outer glass panes 5, 6.

[0025] The inner glass pane 6 is located between the outer glass pane 5 and the additional pane 13. The additional pane 13 is arranged such that an air gap 15 is formed between the inner glass pane 6 and the additional pane 13, spaced from an inner side 14 of the inner glass pane 6. The inner glass pane 6 is thus spaced from the additional pane 13. The additional pane 13 and in particular the air gap 15 formed can further improve the thermal and acoustic properties of the laminated glass pane 14.

[0026] As the exemplary structure, which can be described as an insulating glass structure, in the Fig. As shown in Figure 2, the infrared-reflecting coating 9, the PVB film 12, and the inner glass pane 6 are arranged between the outer glass pane 5 and the additional pane 13, forming a layered structure. The additional pane 13 is, in particular, the pane or side of the laminated glass pane 4 that seals off the laminated glass pane 4 from the vehicle interior 1.

[0027] The additional pane 13 can, in particular, be formed or manufactured at least partially, in particular entirely, from a thermoplastic material. The use of polycarbonate as a thermoplastic material is particularly advantageous here.

[0028] The additional pane 13 can be arranged such that an outer side 16 of the additional pane 13 extends to the inner side 14 of the inner glass pane 6. In contrast, an inner side 17 of the additional pane 13, which is opposite the outer side 16 of the additional pane 13 and can also be referred to as an additional layer, extends directly to the vehicle interior 1 and thus forms the closing side to the vehicle interior 1. For better protection of the laminated glass pane 4, a scratch-resistant coating 18 can be applied or formed on the inner side 17 of the additional pane 13. The additional pane 13 thus has a scratch-resistant coating towards the interior or vehicle interior 1 of the vehicle.

[0029] Optionally, a scratch-resistant coating can also be applied to the outer side 6 and the additional pane 13. This can be used if necessary for secure bonding of the additional pane 13. Furthermore, it could be applied and used as protection against fogging (black dust).

[0030] The additional pane 13 can, for example, be at least partially bonded to the inner glass pane 6 at the edge regions of the additional pane 13. The air gap 15, in particular, at least partially decouples the additional pane 13 and the inner glass pane 6 from each other thermally and acoustically.

[0031] In the Fig. Figure 3 shows an exemplary view of the panoramic glass roof 3 as viewed from the vehicle interior 1, and in particular from a vehicle seat. It can be seen that, in particular, an additional pane 13 is only as large as the viewable area of ​​the panoramic glass roof 3. Bonding of the additional pane 3 to a body of the vehicle 1 occurs in one region of the composite relative to the laminated glass pane 3. A bordered bond 19 is shown here. Likewise, a further additional bond 20 would be conceivable in a central region.

[0032] In the Fig. Figure 4 shows an exemplary and particularly schematic sectional view of an installation situation of the panoramic glass roof 3. This shows an exemplary schematic representation of the interior headliner 21.

[0033] For the assembly or installation of the laminated glass pane 4 in the panoramic glass roof 3, particularly in the vehicle 2, an adhesive bond 22 can be created to a body of the vehicle 2. Furthermore, various types of adhesive bond 23 can be used to join the additional pane 13 and the remaining components of the laminated glass pane 4. For the adhesive bond 23, a PU wet bond or an OCA bond, in particular a triple bond with a thickness of 2.3 mm, can be used. 3M tape bonding is also possible. Ring bonding or ring bonding (+ T-Top) is also conceivable.

[0034] During installation of the panoramic glass roof 3 or glass roof, the panoramic glass roof 3 is installed or fastened using various interfaces. Fastening elements are used via various interfaces to the surrounding side walls, a windshield, a panel, a rear window, and / or an interior to enable the panoramic glass roof 3 to be installed in vehicle 2.

[0035] In the Fig. 5 is based on the Fig. 4 shows an exemplary optional functional extension with regard to the glass roof 3 and in particular the laminated glass pane 4.

[0036] The additional pane 13 can optionally also be used as a light guide for ambient lighting or as light in the laminated glass pane 4. For this purpose, an LED 25, for example, can be arranged on an end face 24 of the additional pane 13. Thus, light can be coupled into the end face using the LED 25. An exemplary light coupling area 26 is shown for this purpose, which can be configured with various additional lighting elements 27. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2007 054 047 9

[0005]

Claims

[1] Laminated glass pane (4) for a vehicle (2), wherein - the laminated glass pane (4) has at least one outer glass pane (5) and one inner glass pane (6), - an infrared-reflecting coating (9) is applied to an inner side (8) of the outer glass pane (5), which extends to an outer side (11) of the inner glass pane (6), characterized by , that - the laminated glass pane (4) has an additional pane (13) different from the inner and outer glass panes (5, 6), the inner glass pane (6) being arranged between the outer glass pane (5) and the additional pane (13), - the additional pane (13) is arranged at a distance from an inner side (14) of the inner glass pane (6), so that an air gap (15) is formed between the inner glass pane (6) and the additional pane (13). [2] Laminated glass pane (4) according to claim 1, characterized bythat the additional pane (13) is formed at least partially, in particular completely, from a thermoplastic material, in particular from polycarbonate. [3] Laminated glass pane (4) according to claim 1 or 2, characterized by that an intermediate film (12) is arranged between the infrared-reflecting coating (9) and the outer side (11) of the inner glass pane (6), in particular the intermediate film (12) is designed as a polyvinyl butyral film. [4] Laminated glass pane (4) according to one of the preceding claims, characterized by that an outer side (16) of the additional pane (13) extends to the inner side (14) of the inner glass pane (6), wherein a scratch-resistant coating (18) is applied to an inner side (17) of the additional pane (13) opposite the outer side (16) of the additional pane (13). [5] Panoramic glass roof (3) for a vehicle (12) comprising at least one laminated glass pane (4) according to one of the preceding claims. [6] Vehicle (2) with a panoramic glass roof (3) according to claim 5.

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