DE102020121716A1 - glazing - Google Patents

Abstract

The invention comprises a glazing (100) comprising a single pane with an outside surface (III) and an inside surface (IV), the single pane - a magnetic holder (5) and - a coil or conductor loop (11) on the outside surface of the individual disk, wherein - the magnetic holder (5) is provided for maintaining a connection position of an object (7) arranged on the inside surface (IV) of the individual disk and - the coil or conductor loop (11) for inductive charging of the object (7) is provided.

Description

The invention relates to glazing (hereinafter also referred to as pane) and in particular a composite pane or a single pane, preferably in or on a motor vehicle.

Modern motor vehicles have windshields which consist of two panes of glass which are laminated to one another via a thermoplastic intermediate layer. Such windshields can have further components, such as rearview mirrors, buttons and sensors, in the middle, upper section. A windshield equipped in this way can have the problem that the elements, in particular OLED-based displays, cannot withstand the high temperatures and pressure requirements during lamination. Even reducing the temperature, the dwell time or the pressure does not lead to the desired success, because the appearance of the laminated pane is not acceptable in such cases. In particular, if the display is intended to reproduce image information, the appearance of the display can deteriorate considerably after lamination. These production errors result in high reject rates, since displays with poor optics cannot be used.

From the US patent 7, 892,616 a method is known in which a rigid element can be connected to a glass element with the aid of adapters. With the previous methods, however, composite panes with internal electronic components are extremely difficult to manufacture. Spacers with complex profiles are usually introduced into the laminated pane, which allow a rigid display to be inserted into a curved laminated glass pane in the profile. As a result, for example, in the case of composite panes with a more complex profile, certain areas cannot be used or can only be used for very small displays, ie displays cannot be placed freely. In addition, the displays are too far in the visible area of the windshield and severely restrict the viewing area of a windshield.

The DE 20 2004 010 443 U1 discloses a holder with a suction cup, which is particularly suitable for attachment to curved smooth surfaces, such as tiles or glass panes. However, these known mountings have the disadvantage that they take up a disproportionately large amount of space and thus greatly restrict the viewing area of a windshield. Furthermore, their holding force is not sufficient, especially when a vehicle is subject to strong vibrations.

Further prior art is according to a cell phone holder for motor vehicles US 6491194 B2 and an adjustable portable device holder according to FIG US 20140138419 A1 disclosed.

There is also a magnetic holder from the WO 2019072494 A1 known.

In addition, it should be noted that electronic components integrated in a laminated pane cannot be replaced in the event of a malfunction. In particular, if the electronics are damaged, they cannot be easily replaced. Rather, the composite pane as a whole has to be removed and replaced at great expense. As a result, the repair costs of the composite pane equipped with electronic components increase.

The invention is now based on the object of providing glazing (single pane or composite pane) which is more suitable for industrial production and in which the exchange of electronic components is simplified.

These and other objects of the present invention are achieved according to the invention by glazing according to claim 1. Preferred embodiments emerge from the subclaims.

• - eine magnetische Halterung und
• - eine Spule oder Leiterschleife an der außenseitigen Oberfläche der Einzelscheibe aufweist,

wobei

• - die magnetische Halterung zur Aufrechterhaltung einer Verbindungsposition eines auf der innenseitigen Oberfläche der Einzelscheibe angeordneten Gegenstands vorgesehen ist und
• - die Spule oder Leiterschleife zum induktiven Laden des Gegenstands vorgesehen ist.

The invention comprises a glazing comprising a single pane with an outside surface and an inside surface, the single pane

• - a magnetic holder and
• - has a coil or conductor loop on the outside surface of the single disc,

in which

• - The magnetic holder is provided for maintaining a connection position of an object arranged on the inside surface of the individual disk, and
• - The coil or conductor loop is provided for inductive charging of the object.

In an advantageous embodiment of a glazing according to the invention, the individual pane is the inner pane of a composite pane, the outer surface of the inner pane and an inner surface of an outer pane being connected to one another via at least one thermoplastic intermediate layer and the magnetic holder and / or the coil or the conductor loop on the inside surface of the outer pane or on the outside surface of the inner pane or within the thermoplastic intermediate layer.

The composite pane is preferably suitable for separating a (vehicle) interior from an external environment. The composite pane can be used in many ways. For example, it can also be a roof window, a rear window, a side window or some other glazing that delimits the vehicle interior. The inner pane denotes that pane which, in the installed position, faces the interior (of a vehicle). The outer pane denotes that pane which, when installed, faces the outside environment (of the vehicle). The outside surface of the outer pane is thus the side directly facing the outside environment. The inside surface of the outer pane is the side of the outer pane that faces the intermediate layer and the inner pane (that is, the side of the outer pane that faces the interior). The outer surface of the inner pane is that side of the inner pane that faces the intermediate layer and the outer pane (that is, the surface that faces the external environment). The inside surface of the inner pane is the side of the inner pane facing the interior.

More and more people are using their cell phones (smartphones) or other technical smart devices such as tablets, navigation devices, etc. in their cars. The invention discloses a glazing for holding such an intelligent device (in particular a windshield) by introducing an integrated smart device holder. The intelligent device holder is a thin metallic, magnetizable and / or magnetic plate that is laminated in or on the glass.

With the help of appropriate objects such as covers (and in particular cell phone cases) or stickers on the smart device, it is possible to implement a device holder inside the glass or on the glass, which can be installed without additional holders or plastic parts (preferably in the car (mainly the dashboard, ventilation grille. ...)).

For this purpose, a magnetic element (magnetic body), preferably a permanent magnetic element in or on the disk, is combined with a magnetic or magnetizable element, preferably a permanent, ferromagnetic or diamagnetic element on the smart device. Alternatively, a permanently magnetic element, preferably a permanently magnetic element on the smart device, is combined with a magnetic or magnetizable element, in particular a ferromagnetic or diamagnetic element, in or on the glazing. Both elements are arranged in such a way that they are releasably connected to one another through their magnetic interaction.

• - eine erfindungsgemäße Verglasung und
• - einen auf der innenseitigen Oberfläche der Einzelscheibe oder außerhalb der Verbundscheibe angeordneten Gegenstand,

wobei

• - die magnetische Halterung zur Aufrechterhaltung einer Verbindungsposition des auf der innenseitigen Oberfläche der Einzelscheibe oder des außerhalb der Verbundscheibe angeordneten Gegenstands vorgesehen ist,
• - der Gegenstand einen magnetischen oder magnetisierbaren Kontaktbereich aufweist und
• - der Gegenstand eine Spule zum induktive Laden oder zur Energieversorgung eines elektrischen Geräts aufweist.

Therefore, a further aspect of the invention comprises a glazing arrangement, at least comprising:

• - a glazing according to the invention and
• - an object arranged on the inside surface of the single pane or outside the composite pane,

in which

• - The magnetic holder is provided for maintaining a connection position of the object arranged on the inside surface of the individual pane or of the object arranged outside the composite pane,
• - The object has a magnetic or magnetizable contact area and
• - The object has a coil for inductive charging or for supplying energy to an electrical device.

In the case of a composite pane, the object can be on the inside surface of the inner pane or on the outside surface of the outer pane, the inside surface of the inner pane being preferred.

In an advantageous embodiment of a glazing arrangement according to the invention, the object contains a mobile electronic device, in particular a mobile radio device or a smart device.

In a further advantageous embodiment of a glazing arrangement according to the invention, the mobile electronic device has a device with a coil for inductive charging or for energy supply, preferably according to the Qi standard.

In a further advantageous embodiment of a glazing arrangement according to the invention, the object comprises a holder provided for a mobile electronic device.

In a further advantageous embodiment of a glazing arrangement according to the invention, the holder provided for a mobile electronic device is designed to lie against the rear wall of the mobile electronic device and has the magnetizable contact area.

In an advantageous embodiment, holders and covers are designed with a required angle in order to align the display of the smart device in such a way that it faces the user. This is particularly necessary with an inclined pane. With little or no inclination No angle adjustment may be required for glazing.

Other and further magnetic or magnetizable objects can also be releasably attached to the respective position.

In an advantageous embodiment of the glazing according to the invention, the magnetic holder is covered by a cover print, preferably by a black screen print on or in the glazing.

Since conventional car glazing offers the option of black screen printing, the surface of the laminated metal or magnetic plate can be covered by an additional or per se existing black print, for example in the edge area of the pane. The general transparency can be increased in comparison with the prior art by the elimination of (preferably permanently mounted) plastic holders and brackets.

As an optional feature, the introduction of a flat plug, a conductive foil and / or lasered lines (i.e. a laser-stripped line) on a coated glass is possible. These or other “conductors” at the point at which the intelligent device is fixed on the glass by the magnetic effect, an inductive charge or energy supply can be implemented while the device is being attached to the glass.

For this purpose, the metallic or magnetic holder can be arranged, for example, in the interior of a conductor loop or coil. Alternatively, the holder can be arranged next to or in the immediate vicinity and at least in the effective area of the inductive charging device.

In an advantageous embodiment, the coil or the conductor loop consists of a magnetic or magnetizable material, for example iron, and itself serves as a magnetic holder. A coil core made of a magnetic or magnetizable material, for example iron, can alternatively or additionally serve as a magnetic holder.

As a demonstration, lamination tests were carried out with magnetic and / or magnetizable plates and, for example, with metal plates. Various shapes were used, for example round, triangular, square or rectangular shapes. The invention is not limited to a specific form.

Furthermore, different thicknesses and different materials and metals, for example ferromagnetic metal or permanent magnetic materials, were used.

Laminated glass is the main application. The invention can, however, be used without restriction by a corresponding magnetic or magnetizable plate or body on or on a single pane of glass (single pane), preferably using PU (polyurethane) as the cover material. This opens up a wide range of possibilities for other types of glazing besides windshields and / or automotive applications.

The magnetic plate can be replaced by a thermoplastic coating with an adhesive or magnetic effect instead of magnetization.

In the glazing according to the invention, the described method for laminating or attaching a magnetic plate in or on a glazing holds a device or other objects in a specific glass position, the position preferably being in the area covered by black printing.

Parallel to the pure holding function, there is the option of wireless inductive charging while the smart device is attached to the corresponding glass position.

The general ergonomics is increased by higher transparency and fewer brackets and plastic parts on or in the pane.

In one embodiment of an advantageous glazing arrangement, the inside surface of the glazing and / or the surface of the object (i.e. the mobile electronic device or the intended holder) facing the glazing has an anti-slip surface, preferably made of a thermoplastic material.

In addition to the magnetic effect, coating with thermoplastic materials is also possible in order to use (local) adhesive or adhesive effects, in particular to avoid slipping. This enables a larger area of application (e.g. non-automotive / single glass panes).

The use of a magnetic or magnetizable (thermoplastic) coating can enable a completely transparent holder.

The pane according to the invention does not require any plastic parts that are otherwise usually glued to a glass surface in order to hold a smart device in its position. With auto glass applications, the user gets a bigger one See-through area and greater transparency are required. For the positioning and holding function through the magnetic field, further (intelligent) functions can be added in or on the laminated glass, for example an inductive charging function or permanent inductive energy supply.

A composite pane according to the invention for a motor vehicle preferably has an outer pane and an inner pane, which are connected to one another via a thermoplastic intermediate layer. The composite pane further comprises a magnetic holder which is arranged within the thermoplastic intermediate layer. The magnetic holder is provided for maintaining a connection position of an object arranged outside the composite pane. For this purpose, the object has a magnetizable contact area. It goes without saying that the magnetizable contact area does not necessarily have to consist of a ferromagnetic material, but that it can also have a permanent magnetic material, for example alloys made of iron, cobalt, nickel or certain ferrites.

The composite pane according to the invention avoids the disadvantages of the previously known designs in that it is provided with a magnetic holder for the stationary mounting of the object with the magnetizable contact area. By arranging the magnetic holder between the outer pane and the inner pane of the composite pane, the magnetic holder can easily be integrated into a manufacturing process for the composite pane. The composite pane according to the invention does not require any special measures in production and is therefore particularly well suited for industrial production.

After the composite pane has been installed in a motor vehicle, an object with a magnetizable contact area can be arranged in a stationary manner on the composite pane. Such a holder advantageously has a high holding force, in particular the object retains its position in the event of strong vibrations in a vehicle. If the object is defective, it can be replaced in a simple manner without the need for an expensive replacement of the composite pane. The invention has the effect, with surprisingly simple means, that the composite pane can be equipped with different electronic components (sensors, cable lines, displays) and at the same time the requirements for safe, reliable and specific storage are met.

The magnetic holder is expediently provided for maintaining a connection position of the object. The magnetic holder can be arranged in such a way that it exerts a holding force on the object. For this purpose, the magnetic holder can be arranged in a suitable manner in the composite pane in such a way that the magnetic field lines pass through the magnetizable contact area predominantly or preferably completely transversely.

The magnetic holder preferably comprises at least one magnetic body, in particular a permanent magnet and / or electromagnet. A permanent magnet is particularly easy to integrate into a composite pane due to its robustness. The magnetic holder can also have several permanent magnets. In principle, the arrangement of the permanent magnet or several permanent magnets in the intermediate layer is arbitrary. However, it is advantageous in the design with several permanent magnets if the number and size of the permanent magnets are matched to the weight and size of the object to be fixed, since this can increase the adhesive force of the magnetic holder. The arrangement of the permanent magnets is characterized in that the forces of attraction acting on the magnetizable contact area mutually reinforce one another.

In a preferred embodiment, the magnetic holder has a flat adhesive surface. In this way, the magnetic holder fits perfectly into the composite pane and develops its maximum adhesive force. The flat adhesive surface of the magnetic holder can preferably be arranged parallel to an inner surface of the outer pane or inner pane. This configuration of the magnetic holder has the advantage that it can be integrated into the intermediate layer of the composite pane in a particularly simple manner during the manufacture of the composite pane. Since the intermediate layer is provided for receiving the magnetic holder, the intermediate layer has a corresponding recess in front of the lamination of the composite pane. The shape of the recess has in particular the shape and size of the at least one permanent magnet.

The permanent magnet and / or the magnetizable contact area advantageously has a round, circular or oval shape. In particular, the permanent magnet can have a cylindrical shape and / or the magnetic contact area can have a circular cross section. The shape and size of the magnetizable contact area can correspond to the permanent magnet. For example, good adhesion between the permanent magnet and the magnetizable contact area can be achieved if the permanent magnet and / or the magnetizable contact area have a coin-sized area. With such a contact area, a high holding force with a strong, flat contact between the object and the composite pane can be realized.

In an advantageous development, the permanent magnet is at least partially or completely embedded in the intermediate layer of the composite pane. In this way, the intermediate layer can not only fix the permanent magnet in the composite pane, but also protect it from oxygen and corrosion.

In a further advantageous development, the object with a magnetizable contact area is a mobile electronic device, in particular a mobile radio device, a cable and / or a holder provided for a mobile electronic device. Alternatively or additionally, the object can comprise a sensor, in particular a moisture or light sensor. The moisture or light sensor can act on the windshield as a component of a driver assistance system and take over tasks of the driver assistance system.

When using sensors, the magnetic holder can advantageously be arranged in the detection area of the sensor. To do this, the detection area of the sensor is first defined and the magnetic holder is arranged in the laminated pane to match. In one possible embodiment, the detection area of the sensor is directly adjacent to an edge of the laminated pane. In this case, the magnetic holder can be arranged in an edge region of the composite pane. The sensor can be comparatively small, e.g. an edge length of a few centimeters.

Various holders for mobile electronic devices are used in motor vehicles, for this purpose the mobile electronic device is inserted into the holder for storage and temporarily fixed. In addition, the holder for mobile electronic devices can have an electrical contact element for connection to the mobile device and / or to a hands-free device.

In a further preferred embodiment, the magnetic holder is arranged in the laterally lower section of the composite pane. Alternatively or additionally, the magnetic holder can be arranged on the edge of the so-called camera window of a windshield, that is to say in the central upper area of the windshield.

In one possible embodiment, the holder provided for a mobile electronic device can be designed to lie against the rear wall of the mobile electronic device and have the magnetizable contact area. In this way, the mobile device can be reached at any time if necessary without a mechanical fixation having to be loosened.

The composite pane with the magnetic holder can be a motor vehicle windshield. This saves having to equip the vehicle with additional components that consume energy and space. As a result, the field of vision is not unnecessarily restricted by the composite pane. A vehicle driver can easily and clearly perceive the road traffic through the composite pane and thus the safety in road traffic is also considerably increased.

The composite pane is suitable for separating a vehicle interior from an external environment. The composite pane can be used in many ways. For example, it can also be a roof window, a rear window, a side window or some other glazing that delimits the vehicle interior. The inner pane denotes that pane which, in the installed position, faces the interior of a vehicle. The outer pane denotes that pane which, in the installed position, faces the external surroundings of the vehicle.

The intermediate layer is preferably transparent. The intermediate layer preferably contains at least one plastic, preferably polyvinyl butyral (PVB), ethylene vinyl acetate (EVA) and / or polyethylene terephthalate (PET). The intermediate layer can also, for example, polyurethane (PU), polypropylene (PP), polyacrylate, polyethylene (PE), polycarbonate (PC), polymethyl methacrylate, polyvinyl chloride, polyacetate resin, casting resins, acrylates, fluorinated ethylene propylenes, polyvinyl fluoride and / or ethylene tetrafluoroethylene , or copolymers or mixtures thereof. The intermediate layer can be formed by one or also by several films arranged one above the other, the thickness of a film preferably being from 0.025 mm to 1 mm, typically 0.38 mm or 0.76 mm. The intermediate layer can preferably be thermoplastic and, after lamination, glue the inner pane, the outer pane and any further intermediate layers to one another. In the sense of the invention, the lamination is the joining of the inner pane, the intermediate layer and the outer pane.

The composite pane or the inner pane and the outer pane preferably contain glass, particularly preferably flat glass, float glass, quartz glass, borosilicate glass, soda-lime glass, or clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide , Polyester, polyvinyl chloride and / or mixtures thereof. The composite pane or the inner pane and the outer pane are preferably transparent, in particular for the use of the pane as a windshield of a vehicle or other uses in which a high level of light transmission is desired. Transparent within the meaning of the invention is then understood to mean a pane that has a transmission in the visible spectral range of greater than 70%. For windows that are not in the driver's field of vision that is relevant to traffic, for example roof windows, the transmission can also be much lower.

The outer pane and the inner pane preferably have a constant thickness with essentially plane-parallel main surfaces and a circumferential side edge that connects them.

In an advantageous embodiment, the thickness of the inner pane is from 0.4 mm to 3.5 mm, preferably from 0.9 mm to 2.1 mm.

In an advantageous embodiment, the thickness of the outer pane is at least 1.4 mm, preferably at least 1.6 mm. The thickness of the outer pane is preferably at most 4.5 mm, preferably at most 2.1 mm. In this area, the composite pane has advantageous mechanical stability and noise-shielding properties, but is nevertheless still sufficiently thin and light to be able to be used as a windshield.

In a preferred embodiment, the outer pane and inner pane are not provided with a preload. During the lamination of the panes, a characteristic distribution of tensile and compressive stresses is formed, which a person skilled in the art can easily distinguish from stresses that are deliberately generated through the use of pre-stressed panes.

The outer pane, the inner pane and the thermoplastic intermediate layer can be clear and colorless, but also tinted or colored. In a preferred embodiment, the total transmission through the composite pane is greater than 70%, in particular if the composite pane is a windshield. The term overall transmission refers to the procedure for testing the light transmission of motor vehicle windows specified by ECE-R 43, Annex 3, Section 9.1.

The composite pane is preferably curved in one or more directions of the space, as is customary for motor vehicle windows, typical radii of curvature being in the range from about 10 cm to about 40 m. The composite pane can also be flat, for example if it is intended as a pane for buses, trains or tractors.

In a further preferred embodiment, the inner pane and outer pane are arranged at an angle to one another by using a thermoplastic film in the intermediate layer with a non-constant thickness. One also speaks of a wedge-shaped film or wedge film. The wedge angle of the film can be constant in the vertical course, which leads to a linear change in the thickness of the intermediate layer, the thickness typically increasing from bottom to top. The direction indication "from bottom to top" denotes the direction from lower edge to upper edge, ie the vertical course. However, there can also be more complex thickness profiles in which the wedge angle is variable from bottom to top (that is, it is location-dependent in the vertical course), linear or non-linear.

The thickness of the intermediate layer preferably increases in the vertical course from bottom to top, at least in sections.

The thickness of the intermediate layer can be constant in horizontal sections (that is, sections approximately parallel to the upper edge and lower edge). Then the thickness profile is constant over the width of the composite pane. However, the thickness can also be variable in horizontal sections. Then the thickness is variable not only in the vertical, but also in the horizontal course.

The intermediate layer is formed by at least one thermoplastic film, in particular the thermoplastic film with a non-constant thickness. The wedge angle can be produced by suitable extrusion of the film or by stretching a film with a constant thickness in the initial state. The intermediate layer can be formed by a single film or by more than one film. The intermediate layer can also be formed from what is known as an acoustic film, which has a noise-dampening effect. Such films typically consist of at least three layers, the middle layer having a higher plasticity or elasticity than the outer layers surrounding it, for example as a result of a higher proportion of plasticizers.

The intermediate layer preferably has a minimum thickness of 0.4 mm to 1.5 mm, particularly preferably 0.5 mm to 1.0 mm. The minimum thickness is the thickness at the thinnest point of the intermediate layer, i.e. typically the thickness at the lower edge of the composite pane. Composite panes with thinner intermediate layers often have too little stability to be used as a vehicle pane.

Another aspect of the invention comprises a composite pane arrangement with at least one composite pane and an object arranged outside the composite pane. The magnetic holder is provided for maintaining a connection position of the object arranged outside the composite pane. For this purpose, the object has a magnetizable contact area with a circular contact area. The object is, for example, a mobile electronic device, in particular a mobile radio device, or a holder provided for a mobile electronic device. The holder provided for a mobile electronic device can be designed to lie against the rear wall of the mobile electronic device and have the magnetizable contact area.

1. a) eine Zwischenschicht mit einer Aussparung bereitgestellt wird,
2. b) die Zwischenschicht flächig auf einer Außenscheibe oder einer Innenscheibe aufgelegt wird,
3. c) eine magnetische Halterung, insbesondere ein Permanentmagnet, in die Aussparung der Zwischenschicht angeordnet wird
4. d) auf die Zwischenschicht die Innenscheibe oder die Außenscheibe aufgelegt wird,
5. e) ein Schichtstapel umfassend
   • - Außenscheibe,
   • - Zwischenschicht mit magnetischer Halterung,
   • - Innenscheibe zu einer Verbundscheibe autoklaviert wird.

Another aspect of the invention comprises a method for producing a composite pane, wherein

1. a) an intermediate layer with a recess is provided,
2. b) the intermediate layer is laid flat on an outer pane or an inner pane,
3. c) a magnetic holder, in particular a permanent magnet, is arranged in the recess in the intermediate layer
4. d) the inner pane or the outer pane is placed on the intermediate layer,
5. e) comprising a layer stack
   • - outer pane,
   • - intermediate layer with magnetic holder,
   • - The inner pane is autoclaved to form a composite pane.

In this method according to the invention, the magnetic holder, in particular the permanent magnet, is first arranged in the recess of the intermediate layer, the permanent magnet fitting positively into the recess. This fixes the permanent magnet in the intermediate layer.

After the treatment of the stack of layers in the autoclave according to step e) of the method according to the invention, the outer pane and the inner pane are connected to one another via the intermediate layer with a magnetic holder, the magnetic holder being arranged between the outer pane and the inner pane. The magnetic holder, in particular the permanent magnet, is preferably completely surrounded by the intermediate layer, so that corrosion of the magnetic holder due to environmental influences, e.g. moisture, is prevented.

The invention also includes the use of a composite pane in a motor vehicle, preferably a passenger car, as a windshield or side window.

The composite pane is manufactured by lamination using, for example, vacuum bag processes, vacuum ring processes, calender processes, vacuum laminators, autoclave processes or combinations thereof. The connection of the outer pane and the inner pane usually takes place under the action of heat, vacuum and / or pressure. Due to the lamination of the magnetic holder, in particular the permanent magnet, in the intermediate layer of the composite pane, the manufacture of the composite pane according to the invention is relatively inexpensive and involves little effort.

The invention is explained in more detail below with reference to a drawing and exemplary embodiments. The drawing is a schematic representation and is not true to scale. The drawing does not restrict the invention in any way.

• 1 ein Querschnitt einer Verbundscheibe mit magnetischer Halterung nach dem Stand der Technik,
• 2A eine Draufsicht auf eine erfindungsgemäße Verglasung am Beispiel einer Verbundscheibe mit magnetischer Halterung und Leiterschleife,
• 2B einen Querschnitt eines Details der erfindungsgemäßen Verglasung nach 2A entlang der Schnittlinie A-A`,
• 3 eine Halterung für ein mobiles elektronisches Gerät mit einem magnetisierbaren Kontaktbereich,
• 4 die Halterung gem. 3 mit einem mobilen elektronischen Gerät, und
• 5 ein Flussdiagramm eines erfindungsgemäßen Verfahrens zur Herstellung einer erfindungsgemäßen Verbundscheibe.

Show it:

• 1 a cross-section of a composite pane with a magnetic holder according to the prior art,
• 2A a top view of a glazing according to the invention using the example of a composite pane with magnetic holder and conductor loop,
• 2 B a cross-section of a detail of the glazing according to the invention 2A along the section line AA`,
• 3rd a holder for a mobile electronic device with a magnetizable contact area,
• 4th the bracket according to 3rd with a mobile electronic device, and
• 5 a flow chart of a method according to the invention for producing a composite pane according to the invention.

1 ( 1 ) shows a cross section of a composite pane ( 1 ) According to the state of the art. The composite pane 1 consists of an outer pane 2 Made of soda-lime glass with a thickness of 2.1 mm, an intermediate layer 3rd and an inner pane 4th Made of soda-lime glass with a thickness of 1.6 mm. The intermediate layer 3rd in turn consists of a thermoplastic film. On an inside surface II of the outer pane 2 the intermediate layer is arranged flat. The arrangement of the outer pane 2 and intermediate layer 3rd closes with the inner pane 4th from, the outside surface III of which is flat on the intermediate layer 3rd adjoins. The inside surface IV of the inner pane 4th is after assembly of the composite pane 1 in a vehicle facing the vehicle interior, while the outside surface I of the outer pane 2 points to the external environment.

As in 1 is shown includes the composite pane 1 a magnetic holder 5 . For example, the magnetic holder 5 a permanent magnet 6th . The permanent magnet 6th is approximately 0.5 mm to 1 mm thick and is shaped and sized like a coin. In a particularly expedient embodiment, the permanent magnet 6th in the intermediate layer 3rd particularly close to the inner pane 4th arranged. In this way, the magnetic field of the permanent magnet runs undisturbed through the inner pane 4th . The magnetic field of the permanent magnet 6th has the necessary strength to hold an object. The permanent magnet 6th is in a convenient, easily accessible position within the laminated pane 1 . In an exemplary embodiment of the composite pane 1 According to the prior art as a windshield of a vehicle, the permanent magnet is 6th integrated in a lateral, lower part of the windshield. The magnetic holding force of the permanent magnets is usually sufficient to fix an object, for example a mobile phone, in place.

In a further design variant, not shown, according to the prior art, there is the magnetic holder 5 from several permanent magnets 6th . The arrangement of the permanent magnets 6th in the intermediate layer 3rd is such that an increased force effect on the magnetizable contact area 8th works. This construction is made possible by a variable number and size of the permanent magnets 6th an adjustability of the required magnetic field strength. This allows the adhesive force of the magnetic holder 5 adapt to the object to be fixed.

The combination of the composite pane 1 and the action of the permanent magnet 6th ensures that an object with a magnetizable contact area on the composite pane 1 can be attached and held in position. This makes it easy to exchange the object without removing the composite pane 1 must be removed from the vehicle.

2A ( 2A) shows a plan view of a glazing according to the invention 100 using the example of a composite pane 1 with magnetic holder 5 and conductor loop 11 for inductive charging or for inductive energy supply.

2 B ( 2 B) shows a cross-section of a detail of the glazing according to the invention 100 to 2A along the section line A-A '.

The composite pane 1 consists of an outer pane 2 Made of soda-lime glass with a thickness of 2.1 mm, an intermediate layer 3rd and an inner pane 4th Made of soda-lime glass with a thickness of 1.6 mm. The intermediate layer 3rd in turn consists of a thermoplastic film. On an inside surface II of the outer pane 2 is the intermediate layer 3rd arranged flat. The arrangement of the outer pane 2 and intermediate layer 3rd closes with the inner pane 4th from, the outside surface III of which is flat on the intermediate layer 3rd adjoins. The inside surface IV of the inner pane 4th is after assembly of the composite pane 1 For example, in a vehicle facing the vehicle interior, while the outside surface I of the outer pane 2 points to the external environment.

As in 2A is shown includes the composite pane 1 a magnetic holder 5 . For example, there is a magnetic holder 5 from three permanent magnets 6th which are arranged in a triangle, ie which are positioned on the corner points of a triangle. The permanent magnets 6th are about 0.5 mm to 1 mm thick and each have the shape of a rectangle. In a particularly expedient embodiment, the permanent magnets are 6th in the intermediate layer 3rd particularly close to the inner pane 4th arranged. In this way, the magnetic field of the permanent magnet runs undisturbed through the inner pane 4th . The magnetic field of the permanent magnets 6th has the necessary strength to hold an object 7th , as it is for example in the 3rd and 4th is pictured. The permanent magnets 6th are in a convenient, easily accessible position within the laminated pane 1 . In an advantageous embodiment of the composite pane according to the invention 1 As the windshield of a vehicle, the permanent magnets are integrated in a lateral, lower part of the windshield. The magnetic holding force of the permanent magnet 6th is usually sufficient for one object 7th , for example a mobile phone, to be fixed in place.

The combination of the composite pane 1 and the effect of the permanent magnets 6th makes sure an object 7th with a magnetizable contact area 8th on the composite pane 1 can be attached and held in position. This creates an exchange of the item 7th easily possible without the composite pane 1 must be removed from the vehicle.

The conductor loop 11 consists here, for example, of a concentric conductor spiral that runs in one plane and over two supply lines 12th can be contacted. When an electrical alternating voltage is applied to the supply lines 12th becomes an alternating electromagnetic field in the conductor loop 11 generated. The conductor loop 11 and the alternating voltage used preferably complies with the Qi standard, which means that there is high compatibility with commercial electronic mobile devices and smart devices.

3rd ( 3rd ) shows an article according to the invention 7th , in this case a holder for a mobile electronic device 9 out 4th . The object 7th has, for example, three magnetic or magnetizable contact areas 8th which are arranged in a triangle to one another. The magnetic or magnetizable contact areas 8th include, for example, rectangular or round coin-sized areas. The magnetic or magnetizable contact areas 8th are not separate parts here, but can be made from a part of the holder for a mobile electronic device 9 educated. The magnetic or magnetizable contact areas 8th are arranged so that the holder for a mobile electronic device 9 on the composite pane 1 can adhere and be held in such a position that the conductor loop 11 in the composite pane 1 congruent with the inductive coil in the mobile electronic device 9 is arranged. This enables optimal energy transfer. By coordinating three permanent magnets 8th in the composite pane 1 and three congruent magnetic or magnetizable contact areas 8th on the object 7th the electric field areas can be optimally aligned and coordinated with one another.

At the in 4th ( 4th ) the execution shown comes the item 7th out 3rd , especially the bracket, is used. The mobile electronic device 9 is located on the bracket and ready to be inserted into the bracket. After that, the bracket is attached to the mobile electronic device 9 on the composite pane 1 near the permanent magnets 6th appropriate. In this way, the holder connects to the mobile electronic device 9 from the magnetic holder 5 cantilevered so that the electronic device 9 on the composite pane 1 is at hand and can be operated at any time. The advantage of this design is based on the use of a magnetic holder 5 in the composite pane 1 that is an arbitrarily designed object 7th stationary on the composite pane 1 fixed. Furthermore, the magnetic holder allows 5 quick and easy removal of the object 7th without having to replace the composite pane 1 would be necessary. The object 7th protrudes outward over the composite pane surface so that it can be easily felt by hand without looking.

The inside surface IV of the inner pane 4th or that of the glazing 100 can have a slip-resistant coating, for example made of a thermoplastic material such as polymer or rubber, which prevents the object from slipping 7th if the glazing is shaken 100 diminished or prevented. Alternatively or additionally, the inner pane 4th touching surface of the object 7th have a corresponding slip-resistant coating or the object 7th can consist entirely or partially of an anti-slip material.

5 ( 5 ) shows a flow diagram of an exemplary embodiment of the method according to the invention for producing a composite pane 1 . In a first step S1, an intermediate layer is used 3rd provided with a recess, the recess for receiving a permanent magnet 6th and a conductor loop 11 with leads 12th is provided. In a second step S2, the intermediate layer 3rd flat on an inner pane 4th placed so that in a third S3 the permanent magnet 6th who have favourited the conductor loop 11 and the supply lines 12th into the recess of the intermediate layer 3rd is arranged. Then in the fourth step S4 is applied to the intermediate layer 3rd an outer pane 2 hung up. In the next step S5, the layer stack is made from the outer pane 2 , Intermediate layer 3rd with permanent magnet 6th , Inner pane 4th to a composite pane 1 autoclaved.

In an advantageous embodiment of the method according to the invention, further thermoplastic or non-thermoplastic intermediate layers are used which, for example, have cutouts at different points. For example, the supply lines can be routed in different levels between the panes.

Furthermore, one of the intermediate layers, preferably that of the inside surface II of the outer pane 2 and / or that of the outside surface IV of the inner pane 4th facing intermediate layers 3rd be colored, preferably black and especially opaque.

Another aspect of the invention comprises a composite pane ( 1 ), comprising an outer pane ( 2 ) and an inner pane ( 4th ), which has a thermoplastic intermediate layer ( 3rd ) are connected to each other,
where the composite pane ( 1 ) a magnetic holder ( 5 ) on an outside or inside surface of the panes ( 2 , 4th ) or within the thermoplastic intermediate layer and
where the magnetic holder ( 5 ) to maintain a connection position of an outside the composite pane ( 1 ) arranged object ( 7th ) is provided.

Another aspect of the invention comprises a composite pane according to the invention ( 1 ), characterized in that the magnetic holder ( 5 ) is arranged in such a way that the magnetic holder ( 5 ) to exert a holding force on the object ( 7th ) is provided.

Another aspect of the invention comprises a composite pane according to the invention ( 1 ), characterized in that the magnetic holder ( 5 ) at least one magnetic body, in particular a permanent magnet ( 6th ), includes.

Another aspect of the invention comprises a composite pane according to the invention ( 1 ), characterized in that the magnetic holder ( 5 ) an arrangement of several permanent magnets ( 6th ) includes.

Another aspect of the invention comprises a composite pane according to the invention ( 1 ), characterized in that the magnetic holder ( 5 ) has a flat adhesive surface.

Another aspect of the invention comprises a composite pane according to the invention ( 1 ), characterized in that the flat adhesive surface of the magnetic holder ( 5 ) parallel to an inner surface of the outer pane ( 2 ) or inner pane ( 4th ) is arranged.

Another aspect of the invention comprises a composite pane according to the invention ( 1 ), characterized in that the permanent magnet ( 6th ) completely from the intermediate layer ( 3rd ) is surrounded.

Another aspect of the invention comprises a composite pane according to the invention ( 1 ), characterized in that the permanent magnet ( 6th ) is cylindrical.

Another aspect of the invention comprises a composite pane according to the invention ( 1 ), which is an automobile windshield.

• - eine erfindungsgemäße Verbundscheibe (1) und
• - einen außerhalb der Verbundscheibe (1) angeordneten Gegenstand (7)

wobei

• - die magnetische Halterung (5) zur Aufrechterhaltung einer Verbindungsposition des außerhalb der Verbundscheibe (1) angeordneten Gegenstands (7) vorgesehen ist,
• - der Gegenstand einen magnetisierbaren Kontaktbereich (8) aufweist und
• - der magnetisierbare Kontaktbereich (8) einen kreisförmigen Querschnitt aufweist.

Another aspect of the invention comprises a composite pane arrangement at least comprising:

• - a composite pane according to the invention ( 1 ) and
• - one outside the composite pane ( 1 ) arranged object ( 7th )

in which

• - the magnetic holder ( 5 ) to maintain a connection position of the outside of the laminated pane ( 1 ) arranged object ( 7th ) is provided,
• - the object has a magnetizable contact area ( 8th ) and
• - the magnetizable contact area ( 8th ) has a circular cross-section.

Another aspect of the invention comprises a composite pane arrangement according to the invention, characterized in that the object ( 7th ) a mobile electronic device ( 9 ), especially a mobile device.

Another aspect of the invention comprises a composite pane arrangement according to the invention, characterized in that the object ( 7th ) one for a mobile electronic device ( 9 ) provided bracket.

Another aspect of the invention comprises a composite pane arrangement according to the invention, characterized in that the for a mobile electronic device ( 9 ) provided bracket on the back wall of the mobile electronic device ( 9 ) is adjacent and the magnetizable contact area ( 8th ) having.

Another aspect of the invention comprises a composite pane according to the invention or a composite pane arrangement according to the invention in a motor vehicle, preferably a passenger car, as a windshield or side window.

List of reference symbols

100

glazing

1

Composite pane

1'

Single disc

2

Outer pane

3

Intermediate layer

4th

Inner pane

5

magnetic holder, magnetic holder

6th

Permanent magnet

7th

object

8th

magnetic or magnetizable contact area

9

mobile electronic device

11

Conductor loop

12th

Supply line to the conductor loop

13th

Cover print

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• US 7892616 [0003]
• DE 202004010443 U1 [0004]
• US 6491194 B2 [0005]
• US 20140138419 A1 [0005]
• WO 2019072494 A1 [0006]

Claims (15)

Glazing (100) comprising a single pane with an outside surface (III) and an inside surface (IV), the single pane - a magnetic holder (5) and - Has a coil or conductor loop (11) on the outside surface of the single disk, wherein - The magnetic holder (5) is provided for maintaining a connection position of an object (7) arranged on the inside surface (IV) of the individual disk, and - The coil or conductor loop (11) is provided for inductive charging of the object (7). Glazing (100) Claim 1 , the single pane being the inner pane (4) of a composite pane (1), and the outer surface (III) of the inner pane (4) and an inner surface (II) of an outer pane (2) connected to one another via at least one thermoplastic intermediate layer (3) The magnetic holder (5) and / or the coil or conductor loop (11) are arranged on the inside surface (11) of the outer pane (2) or on the outside surface (III) of the inner pane (4) or within the thermoplastic intermediate layer is. Glazing (100) Claim 1 or 2 , wherein the magnetic holder (5) is arranged such that the magnetic holder (5) is provided for exerting a holding force on the object (7). Glazing (100) according to one of the Claims 1 to 3rd , wherein the magnetic holder (5) comprises at least one magnetic body, preferably at least one permanent magnet (6), and in particular an arrangement of several permanent magnets (6). Glazing (100) according to one of the Claims 1 to 4th , wherein the magnetic holder (5) - is arranged inside the coil or conductor loop (11) or - next to and preferably in the immediate vicinity of the coil or conductor loop (11) and / or made of the material of the coil or conductor loop (11 ) consists. Glazing (100) according to one of the Claims 1 to 5 , wherein the magnetic holder (5) is covered by a cover print, preferably by a black screen print on or in the glazing (100). Glazing (100) according to one of the Claims 1 to 6th wherein the coil or conductor loop (11) consists of a conductive film and / or a lasered line on an electrically conductive coated glass. Glazing arrangement at least comprising: - a glazing (100) according to one of the Claims 1 to 7th and - an object (7) arranged on the inside surface (IV) of the single pane or outside the composite pane (1), wherein - the magnetic holder (5) for maintaining a connection position of the on the inside surface (IV) of the single pane or the outside the object (7) arranged on the composite pane (1) is provided, - the object (7) has a magnetic or magnetizable contact area (8) and - the object (7) has a coil for inductive charging or for supplying energy to an electrical device. Glazing arrangement according to Claim 8 , wherein the object (7) contains or consists of a mobile electronic device (9), in particular a mobile radio device or a smart device. Glazing arrangement according to Claim 8 or 9 , wherein the mobile electronic device (9) has a device with a coil for inductive charging or for energy supply, preferably according to the Qi standard. Glazing arrangement according to one of the Claims 8 to 10 , characterized in that the object (7) comprises a holder provided for a mobile electronic device (9). Glazing arrangement according to Claim 11 wherein the holder provided for a mobile electronic device (9) is designed to lie against the rear wall of the mobile electronic device (9) and has the magnetizable contact area (8). Glazing arrangement according to one of the Claims 8 to 12th , wherein the mobile electronic device (9) or the intended holder has several magnetic or magnetizable contact areas (8), preferably at least two, particularly preferably at least three and especially exactly three, and the glazing (100) has several corresponding magnetic bodies, in particular permanent magnets (6) ) or ferromagnetic or diamagnetic elements, which are provided to effect a positioning and alignment of the mobile electronic device (9) relative to the glazing (100) by magnetic forces. Glazing arrangement according to one of the Claims 8 to 13th wherein the inside surface (IV) of the glazing (100) and / or the surface of the object (7) facing the glazing (100) has an anti-slip surface, preferably made of a polymer. Glazing (100) or glazing arrangement according to one of the preceding claims in a motor vehicle, preferably a passenger car, as a windshield or side window.

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