Functional device for vehicle interior of motor vehicle

By using light-transmitting thin stone products and functional layers in functional devices in motor vehicles, the shortcomings of durability and climate neutrality in the existing technology are solved, the stability and elasticity are improved, and the reliability of functional components is ensured. usability.

CN119329432APending Publication Date: 2025-01-21BAYERISCHE MOTOREN WERKE AG
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Patent Information

Application Number
CN202410931557.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-07-20
Filing Date
2024-07-12
Publication Date
2025-01-21

AI Technical Summary

Technical Problem

The durability and climate neutrality of existing functional devices in motor vehicles are insufficient, and the materials are not suitable as functional elements.

Method used

Use planar decorative elements, including thin stone products that are fully or partially translucent, and set transparent or partially transparent functional layers on the functional layers, which can emit or receive electromagnetic waves and improve the stability and elasticity of the material.

Benefits of technology

Through the use of thin stonework and functional layers, the durability and climate neutrality of the functional units are achieved, while ensuring the usability and operability as functional elements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a functional device (2) for a vehicle interior of a motor vehicle, comprising a flat decorative element (4) which indirectly or directly forms a functional surface (6), in particular which can be actuated manually, and which is entirely or at least partially light-transmissive, the invention relates to a functional device (1) for a vehicle interior, comprising a flat, in particular flexible, thin stone article or integrally formed from a thin stone article, and having at least one transparent or partially transparent functional layer (12), which is arranged on the side of the decorative element (4) facing away from the vehicle interior, electromagnetic waves outside the visible range can be emitted in the direction of the decorative element (4) by means of the functional layer and / or electromagnetic waves, in particular in the visible range, can be received from the direction of the decorative element (4) by means of the functional layer.
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Description

Technical Field

[0001] The invention relates to a functional device for the vehicle interior of a motor vehicle. Background Art

[0002] Functional devices in the vehicle interior of motor vehicles are known from the prior art as operating and display elements. Their surfaces can consist of various plastic materials. Individual surfaces made of glass, metal, wood, leather or ceramic are also known.

[0003] The operating elements can be manually actuatable and / or can form a functional surface to which a function (for example inductive charging of an electrical consumer) is assigned.

[0004] It has been found in known functional devices that these often do not meet the requirements for durability. Therefore, functional devices consisting only of plastics include petroleum-based materials. In addition, materials that must be produced with increased energy requirements (such as glass, ceramics and metals) are also neither durable nor climate-neutral. In addition, most materials that are classified as durable (such as textile materials or fiber materials) are not suitable for functional devices in vehicles. Summary of the invention

[0005] An object of exemplary embodiments of the present invention is to provide a functional device for the vehicle interior of a motor vehicle, in which durability or climate neutrality is improved and at the same time usability as a functional element is ensured.

[0006] This object is achieved by a functional device for the vehicle interior space of a motor vehicle, the functional device having a planar decorative element, which indirectly or directly forms a functional surface that can be operated in particular manually, the decorative element is entirely or at least partially light-transmissive and comprises a planar, in particular flexible, thin stone product or is entirely formed of the thin stone product, and the functional device has at least one transparent or partially transparent functional layer, which is arranged on the side of the decorative element facing away from the vehicle interior space, and through which electromagnetic waves outside the visible range can be emitted in the direction of the decorative element and / or electromagnetic waves in particular in the visible range can be received from the direction of the decorative element through the functional layer.

[0007] Since the functional device comprises a planar decorative element which comprises or is entirely formed from thin stone, at least the element of the functional device is constructed from a durable material which simultaneously meets the technical requirements as a functional element with regard to stability and elasticity.

[0008] Since the functional device comprises a functional layer arranged on the side of the decorative element facing away from the vehicle interior, electromagnetic waves outside the visible range can be emitted through the planar decorative element and / or electromagnetic waves, in particular in the visible range, can be received from the direction of the decorative element. In the latter case in particular, the functional device (in particular the planar decorative element) can be a manually operable operating element, such as a button or a "touch screen".

[0009] Electromagnetic waves in the visible range are understood to be, in particular, light. Electromagnetic waves outside the visible range are understood to be all other waves except those in the visible range, in particular electromagnetic waves having a wavelength for charging electrical consumers by means of induction. In this case, electrical consumers which are directly or indirectly in contact with or resting on the flat decorative element can be charged inductively via the functional layer.

[0010] The thin stone product may comprise a natural product. It has proven to be advantageous if the thin stone product comprises crystal, stone or slate, in particular real slate, and / or if the thin stone product of the planar decorative element comprises a layer thickness of 0.01 mm to 1 mm, in particular 0.1 mm to 0.5 mm.

[0011] If the thin stone product of the planar decorative element comprises a layer thickness of 0.1 mm to 1 mm, in particular 0.1 mm to 0.5 mm, electromagnetic waves can penetrate the decorative element not only in the visible range but also in the invisible range and reach the functional layer from the outside or pass through the decorative element from the functional layer to the outside.

[0012] Furthermore, the elasticity of the planar decorative element is increased by the layer thickness, whereby the planar decorative element can be adapted to, in particular applied to, different geometries more easily.

[0013] An embodiment of the functional device is conceivable, wherein the functional device includes at least one lighting unit, which includes at least one lighting device (for example an LED), which is arranged on a side of the functional layer facing away from the decorative element and through which electromagnetic waves in the visible range can be emitted in the direction of the decorative element.

[0014] By providing the lighting unit, the functional device can be designed to be illuminated. Here, the light emitted from the lighting device is emitted outwardly through the entire or at least partially light-transmissive, planar decorative element.

[0015] Thereby, the operation of the functional device can be achieved even under poor light illumination conditions, and a visually appealing appearance of the functional device can be provided.

[0016] In principle, it is conceivable that the decorative element is fastened directly to the functional layer. However, it has proven to be advantageous if the functional device comprises at least one completely or partially transparent carrier unit, which is arranged between the decorative element and the functional layer on the side of the decorative element facing away from the vehicle interior and to which the decorative element is fastened detachably, in particular by means of a friction fit and / or a form fit, or non-detachably, in particular by means of a material fit, a friction fit and / or a form fit.

[0017] The receiving and fixing of the decorative element is improved by the carrying unit. In addition, by providing the carrying unit, the installation of the decorative element becomes easy and the decorative element is supported to prevent breaking under the situation of excessive force.

[0018] In a further development of the last-mentioned embodiment, it has proven to be advantageous if the carrier unit comprises a light-impermeable carrier fiber web or a light-transmitting carrier fiber web, which is fixed to the decorative element on the side of the decorative element facing away from the vehicle interior, and / or if the carrier unit comprises a single-component or multi-component plastic carrier which comprises a fully or partially light-transmitting area and is arranged between the decorative element or the carrier fiber web and the functional layer on the side of the decorative element facing away from the vehicle interior.

[0019] By providing a light-opaque or light-transmissive support fleece, strong forces acting on the decorative element can be mitigated, in particular dampened or weakened.

[0020] The plastic carrier of single component or multi-component can be formed by transparent plastic as a whole. In addition, only the light-transmitting area can be formed by transparent or translucent plastic, and other areas can be formed by opaque plastic. In this case, the plastic carrier can realize the function of a mask.

[0021] The at least one luminous means can in particular be arranged on a light-transmissive region of the plastic carrier.

[0022] In one embodiment of the functional device, the functional device includes at least one display element that can be accessed by a user, through which unchanged information can be accessed by the user, and the display element includes at least one through-gap in the decorative element, or includes at least one through-gap in the decorative element and in the opaque supporting fiber web, or includes at least one through-gap in the opaque supporting fiber web.

[0023] The at least one display element comprising a continuous recess can, for example, comprise symbols, signs and / or characters which can be read by a user.

[0024] Since the display element is formed by a continuous recess in the decorative element, local light transmittance of the decorative element can be formed by the recess in the decorative element. In this case, embodiments are conceivable in which the decorative element is light-impermeable in all other areas. Since light only penetrates the recess, a clearly defined area, in particular a symbol forming the display element, is visible to the user.

[0025] If a light-impermeable carrier fiber web is provided, the light emitted by the at least one luminous means can also penetrate the light-impermeable carrier fiber web only in the region of the cutouts. Thus, a clearly defined display element can be ensured in the manner described above.

[0026] In principle, it is conceivable that if the decorative element is light-transmissive in this region or as a whole, in which case it is not mandatory to also provide a recess in the decorative element.

[0027] If the through-going recesses are provided both in the decorative element and in the light-impermeable supporting fiber web, the decorative element can be designed to be light-impermeable in other regions.

[0028] If only the decorative element comprises continuous recesses, the carrier fiber web can be designed to be light-transmissive.

[0029] In principle, it is conceivable that the continuous recess comprises a cavity. In a further development of the last-mentioned embodiment, the functional device comprises at least one optically effective filling element, which is arranged in a removable manner, in particular by means of a form-fitting or friction-fitting and / or in a non-removable manner, in particular by means of a material connection, a form-fitting and / or a friction-fitting, in a recess of the decorative element and / or of the light-impermeable carrier fiber web, and which comprises a transparent and / or translucent material.

[0030] By providing the filling element, clogging of the gap can be prevented. Since the filling element is optically active, light can penetrate the filling element unhindered or can be diffused or colored by means of an optical effect, for example.

[0031] In principle, it is conceivable that the decorative element forms the outer surface of the functional device. In order to reduce wear and tear of the decorative element, it has proven to be advantageous if the functional device comprises at least one translucent and / or transparent protective layer, which is arranged directly on the decorative element on the side of the decorative element facing the vehicle interior, which covers the decorative element partially or completely and which can be touched manually during actuation.

[0032] The protective layer can be formed in principle in any manner as long as it fulfills the technical function of protecting the decorative element from wear and dirt. Embodiments of the functional device are conceivable in which the protective layer comprises epoxy resin and / or the protective layer comprises a layer thickness of at most 80 μm, in particular at most 50 μm.

[0033] If the outer surface of the functional device is formed by a protective layer, the protective layer forms an operating surface that can be directly manually actuated. The decorative element can in this case be actuated indirectly.

[0034] The functional layer can in principle be formed in any desired manner. Embodiments of the functional device are conceivable in which the functional layer comprises at least one sensor device, in particular a sensor film, by means of which manual actuation of the functional device can be detected, wherein the functional surface forms an operating surface that can be manually actuated indirectly or directly, and / or in which the functional layer comprises at least one charging device, in particular a coil body, by means of which electromagnetic waves can be emitted for inductively charging a consumer, wherein the functional surface forms an inductive charging surface.

[0035] If the functional layer comprises at least one sensor device, the functional device can comprise a manually actuatable operating surface. Approach to the functional surface can thus be detected by the functional layer and a corresponding control command can be triggered after a trigger criterion detected by the sensor device has been detected.

[0036] In this case, the manually actuatable operating surface can include a single manually actuatable switch or a plurality of manually actuatable switches which are formed by the same decorative element.

[0037] If the functional layer comprises at least one charging device, in particular a coil former, the functional surface can form an inductive charging surface.

[0038] A consumer is understood to be an electrical consumer that can be charged inductively, for example a mobile communication device, a tablet computer, headphones or a clock.

[0039] In one embodiment of the functional device, a region of the decorative element can be associated with the charging device, and an adjoining region can form at least one manually actuatable operating surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Further features, details and advantages of the invention emerge from the dependent claims, the drawings and the following description of two preferred embodiments of the functional device.

[0041] In the accompanying drawings:

[0042] Figure 1 A cross-sectional view showing a schematic diagram of a first embodiment of a functional device;

[0043] Figure 2 The schematic sectional view shows a second exemplary embodiment of a functional device. DETAILED DESCRIPTION

[0044] The figures show two exemplary embodiments of functional devices for a vehicle interior (not explicitly shown in the figures) of a motor vehicle, each of which is provided with the reference numeral 2. The functional devices 2 each comprise a planar decorative element 4, which in the exemplary embodiment shown in the figures indirectly forms a functional surface 6. The planar decorative element 4 comprises a planar thin stone product, for example a crystal, a stone or a slab of stone.

[0045] In the embodiment shown in the figures, a transparent protective layer 8 is provided on the side of the decorative element 4 facing the vehicle interior, which directly bears against the decorative element 4 and completely covers the decorative element 4. The protective layer 8 can be touched manually from the direction of the vehicle interior and forms a directly manually touchable functional surface 6.

[0046] On the side of the trim element 4 facing away from the vehicle interior, the functional device 2 comprises a carrying unit 10 .

[0047] A transparent or partially transparent functional layer 12 is arranged on the side of the carrier unit 10 facing away from the vehicle interior. In addition, in the embodiment shown in the figures, a lighting device 14 is arranged on the side of the functional layer 12 facing away from the vehicle interior, by which electromagnetic waves in the visible range can be emitted in the direction of the decorative element 4.

[0048] Figure 1 A first embodiment of the functional device 2 is shown. Figure 1 In the exemplary embodiment of FIG. 4 , the functional layer 12 comprises a sensor device 16 , by means of which electromagnetic waves, in particular in the visible range, can be received from the direction of the decorative element 4 .

[0049] The carrier unit 10 comprises a light-impermeable carrier web 18, to which the decorative element 4 is fixed. Furthermore, the carrier unit 10 comprises a multi-component plastic carrier 20, which comprises a light-impermeable region 22 and a light-permeable region 24. In order to ensure that electromagnetic waves in the visible range can penetrate from the direction of the vehicle interior in the direction of the sensor device 16, through-going gaps 26 are provided in the decorative element 4 and in the light-impermeable carrier web 18. As a result, light can reach from the vehicle interior in the direction of the sensor device 16 without hindrance.

[0050] An optically effective filling element 28, which is formed from a transparent and / or translucent material, is arranged in one of the recesses 26. The filling element 28 can be used to achieve color effects that can be detected by the user.

[0051] exist Figure 1 , the gap 26 is functionally assigned to a display element 30 accessible to the user, through which the user can obtain unchanged information. Figure 1 In FIG. 2 , the optically effective filling element 28 can be seen, by which the light penetrating the lighting device 14 , the decorative element 4 , in particular the recess 26 , is changed in color.

[0052] Figure 2 A second exemplary embodiment of a functional device 2 is shown, in which the functional layer 12 comprises at least one charging device 32, by means of which electromagnetic waves can be emitted for inductively charging a consumer. Figure 2 In the embodiment visible in FIG. 1 , the decorative element 4 is entirely light-transmissive.

[0053] according to Figure 2 The carrier unit 10 of the embodiment includes a light-transmitting carrier fiber web 19 and a Figure 1 Examples include a multi-component plastic carrier 20. Figure 2 The multi-component plastic carrier 20 also includes a light-impermeable region 22 and a light-permeable region 24. Figure 2 In the functional device 2 of the embodiment, the functional device 2 includes an inductive charging surface.

[0054] The features of the invention disclosed in the above description, the claims and the drawings may be essential both individually and in any combination for realizing the invention in its different embodiments within the scope of protection of the following claims.

[0055] Reference numerals list

[0056] 2 Functional device

[0057] 4Decorative elements

[0058] 6 Functional surfaces

[0059] 8 protection layers

[0060] 10 load-bearing units

[0061] 12 functional layers

[0062] 14 lighting fixtures

[0063] 16 sensor devices

[0064] 18. Opaque load-bearing fiber mesh

[0065] 19Transparent load-bearing fiber mesh

[0066] 20 plastic carrier

[0067] 22 Opaque Area

[0068] 24 light-transmitting areas

[0069] 26 Gap

[0070] 28 Filling elements

[0071] 30 display components

[0072] 32 Charging device

Claims

1. A functional device (2) for a vehicle interior of a motor vehicle, the functional device comprising a planar decorative element (4), the decorative element indirectly or directly forming a functional surface (6) which can be operated in particular manually, the decorative element being entirely or at least partially light-transmissive and comprising a planar, in particular flexible, thin stone product or being entirely formed of the thin stone product, and the functional device comprising at least one transparent or partially transparent functional layer (12), the functional layer being arranged on a side of the decorative element (4) facing away from the vehicle interior and capable of emitting electromagnetic waves outside the visible range in the direction of the decorative element (4) and / or capable of receiving electromagnetic waves in the visible range from the direction of the decorative element (4) in particular through the functional layer.

2. The functional device (2) according to claim 1, characterized in that The thin stone product comprises crystal, stone or stone slab, in particular real stone slab, and / or the thin stone product of the planar decorative element (4) comprises a layer thickness of 0.1 mm to 1 mm, in particular 0.1 mm to 0.5 mm.

3. The functional device (2) according to claim 1 or 2, characterized in that At least one lighting unit is provided, which includes at least one lighting device (14), such as an LED, which is arranged on a side of the functional layer (12) facing away from the decorative element (4) and can emit electromagnetic waves in the visible range in the direction of the decorative element (4).

4. Functional device (2) according to one of the preceding claims, characterized in that At least one wholly or partially transparent carrier unit (10) is provided, which is arranged between the decorative element (4) and the functional layer (12) on the side of the decorative element (4) facing away from the vehicle interior, and the decorative element (4) is fixed to the carrier unit in a removable manner, in particular by means of friction locking and / or form locking, or in a non-removable manner, in particular by means of material locking, friction locking and / or form locking.

5. The functional device (2) according to claim 4, characterized in that The carrier unit (10) comprises a light-impermeable carrier fiber web (18) or a light-permeable carrier fiber web (19), which is fixed to the decorative element (4) on the side of the decorative element (4) facing away from the vehicle interior, and / or the carrier unit (10) comprises a single-component or multi-component plastic carrier (20), which comprises a completely or partially light-permeable area (24) and is arranged between the decorative element (4) or the carrier fiber web (18, 19) and the functional layer (12) on the side of the decorative element (4) facing away from the vehicle interior.

6. Functional device (2) according to one of the preceding claims, characterized in that At least one display element (30) accessible by a user is provided, through which unchanged information can be obtained by the user, and the display element comprises at least one through-hole (26) in the decorative element (4), or comprises at least one through-hole (26) in the decorative element (4) and in the light-impermeable carrier fiber web (18), or comprises at least one through-hole (26) in the light-impermeable carrier fiber web (18).

7. The functional device (2) according to claim 6, characterized in that At least one optically effective filling element (28) is provided, which is arranged in a removable manner, in particular by means of a form fit or a friction fit, and / or in a non-removable manner, in particular by means of a material fit, a form fit and / or a friction fit, in a recess (26) of the decorative element (4) and / or of the light-impermeable supporting fiber web (18), and which comprises a transparent and / or translucent material.

8. Functional device (2) according to one of the preceding claims, characterized in that At least one translucent and / or transparent protective layer (8) is provided, which is arranged directly on the decorative element (4) on the side of the decorative element (4) facing the vehicle interior, covers the decorative element (4) partially or completely and can be touched manually during operation.

9. The functional device (2) according to claim 8, characterized in that The protective layer (8) comprises epoxy resin and / or the protective layer (8) comprises a layer thickness of at most 80 μm, in particular at most 50 μm.

10. Functional device (2) according to one of the preceding claims, characterized in that The functional layer (12) comprises at least one sensor device (16), in particular a sensor film, by means of which manual actuation of the functional device (2) can be detected, the functional surface (6) forming an operating surface that can be operated indirectly or directly manually, and / or the functional layer (12) comprises at least one charging device (32), in particular a coil body, by means of which electromagnetic waves can be emitted for inductively charging a consumer, wherein the functional surface (6) forms an inductive charging surface.