Automotive interior trim part and method for manufacturing an automotive interior trim part

Abstract

The invention relates to an automotive interior trim part (10) comprising a decorative layer (11) with a front (12) and a back (13) opposite the front (12), a plastic layer (14) wherein the plastic layer (14) is arranged on the back (13) of the decorative layer (11), and at least one wireless charging unit for wirelessly charging a mobile device placed on the front (12) of the decorative layer (11). The wireless charging unit comprises at least one coil (15) and at least one circuit board (17) for controlling the coil (15). The coil (15) is arranged on the back of the decorative layer (11) and is wholly or at least partially embedded in the plastic layer (14). The invention further relates to a method for manufacturing a motor vehicle interior trim part (10), in particular the motor vehicle interior trim part (10) according to the invention.

Description

[0001] The invention relates to an automotive interior trim part and a method for manufacturing an automotive interior trim part, in particular the automotive interior trim part according to the invention.

[0002] Interior trim parts for vehicles are understood to be primarily decorative parts (also called trim pieces) and / or trim parts for a vehicle interior. Numerous interior trim parts are installed in the vehicle interior, such as door panels, console and instrument panel covers, for example, center console trim. Control buttons and their covers are also considered interior trim parts. Other examples of interior trim parts include door panels, such as those for the driver's door, passenger door, or other doors in the vehicle; table surfaces; covers, such as those for the center console; (extendable) boards or tables; seat upholstery or seat covers, such as those for the driver's or passenger's seat; and floor coverings.Furthermore, the vehicle interior trim part can also be a sun visor and / or a privacy screen, which can be mounted, attached, or clipped on, particularly in the area of ​​one or more windows of the vehicle.

[0003] Typically, wireless chargers are integrated behind decorative surfaces by bonding them to the decorative materials. The decorative material is not a true decorative element, but rather a plastic, such as a thermoplastic elastomer (TPE). The manufacturing process involves several steps. Therefore, integrating a wireless charger behind real decorative surfaces, such as wood or wood veneer, is currently not known. Wireless chargers are typically installed as a separate module beneath a plastic mat.

[0004] It is therefore an object of the invention to provide a new automotive interior trim part, in particular an automotive interior trim part in which a coil of a wireless charging unit can be installed behind different decorative surfaces. Furthermore, it is an object of the invention to provide a new method for manufacturing an automotive interior trim part, in particular a method for manufacturing the automotive interior trim part according to the invention.

[0005] This problem is solved with regard to the vehicle interior trim part by the features of claim 1 and with regard to the method by the features of claim 12. Advantageous embodiments and further developments are specified in the respective dependent claims.

[0006] The automotive interior trim part according to the invention comprises a decorative layer with a front and a back opposite the front, a plastic layer, wherein the plastic layer is arranged on the back of the decorative layer, and at least one wireless charging unit for wirelessly charging a mobile device placed on the front of the decorative layer, wherein the wireless charging unit comprises at least one coil and at least one circuit board for controlling the coil, wherein the coil is arranged on the back of the decorative layer, in particular directly and / or immediately on the back of the decorative layer, and wherein the coil is wholly or at least partially embedded in the plastic layer.

[0007] The advantages of the invention lie particularly in the fact that the coil of the wireless charging unit can be arranged close to, and especially as close as possible to, the front surface of the decorative layer, which serves as the visible side, in order to achieve a small, and especially as small as possible, distance to the mobile device to be charged, which rests on the front surface of the decorative layer. Furthermore, a reduction in the number of components can be achieved. This also reduces the number of process steps in the manufacturing process.

[0008] A further advantage of the invention lies in the heat dissipation through the plastic layer and the at least partial insulation of the components. Another advantage is the EMC protection.

[0009] The phrase "on the back" does not necessarily mean that a first component of the vehicle interior trim part must be located directly and / or immediately on the back of a second component, although this is also possible. The first component should simply be located on the side of the respective component opposite the visible side. Additional layers, particularly intermediate layers, may also be located between the two components, so that the first component is (only) indirectly located on the back of the second component.

[0010] The term "at least partially embedded in the plastic layer" means, in particular, that the embedded component, for example, the coil and / or the printed circuit board and / or a shielding layer and / or a contact, is either completely enclosed by the plastic of the plastic layer or only partially enclosed by it. The term "partially enclosed" means, in particular, that at least one section and / or area and / or side of the component is not directly in contact with the plastic of the plastic layer, but is exposed and / or borders other components, for example, in the case of a partially embedded coil, the printed circuit board and / or a shielding layer.

[0011] In other words, the component is at least partially integrated, inserted, or enclosed within the plastic of the plastic layer. Specifically, the component is fixed within the plastic of the plastic layer. In particular, the component is at least partially encased and / or overmolded by the plastic of the plastic layer.

[0012] The plastic layer can be a carrier for the vehicle interior trim panel. Alternatively, it can be a separate layer with at least one carrier attached to one side facing away from the decorative layer, for example, by injection molding. In both of the aforementioned variants, the carrier can form and / or include mounting elements for attaching the vehicle interior trim panel to the vehicle interior.

[0013] The decorative layer may be made of wood and / or wood veneer and / or metal, for example aluminum or carbon, and / or glass and / or ceramic and / or stone, for example slate, and / or plastic and / or foil and / or fabric and / or textile, or may include one or more of these materials.

[0014] The mobile device can be a mobile phone, a cell phone, a smartphone, a tablet, a computer, a laptop, a pager, a watch, especially a smartwatch, or similar.

[0015] The vehicle interior trim panel may have one or more magnets for holding and / or securing a mobile device placed on it. These magnet(s) should be arranged and / or shielded in such a way that no interaction occurs with the coil of the wireless charging unit.

[0016] The coil of the wireless charging unit can, for example, be a planar coil. The circuit board associated with the coil can, for example, contain the electronics for controlling the coil and / or communication electronics.

[0017] The coil of the wireless charging unit may be associated with a shielding layer, for example, integrated into the vehicle's interior trim panel, in the form of a shielding element or coating. The shielding layer may be a ferrite or other material.

[0018] According to one embodiment of the invention, a section of the plastic layer is arranged between the back of the decorative layer and a front of the at least one coil, in particular by being flooded.

[0019] According to an alternative embodiment of the invention, the coil, for example a planar coil, is applied and / or printed on the back of the decorative layer.

[0020] According to one embodiment of the invention, the printed circuit board is arranged on the back side of the plastic layer. Alternatively or additionally, the printed circuit board can be wholly or at least partially embedded in the plastic layer. In particular, the printed circuit board can be at least partially embedded in the plastic of the plastic layer on the back side of the coil, especially on the back side of the plastic layer.

[0021] The circuit board can be positioned at a distance from the back of the coil or from the back of a shielding layer, which in turn can be positioned on the back of the coil. Between the coil and the circuit board, the plastic of the plastic layer is then positioned, optionally in addition to the shielding layer.

[0022] It is also possible to arrange an additional printed circuit board (PCB), meaning that the coil has at least two PCBs. This additional PCB cannot be positioned at a distance from the coil or a shielding layer attached to the coil, as was initially described. Instead, this additional PCB can be located directly on the back of the coil or on the back of the shielding layer attached to the coil. This additional PCB can, for example, contain communication electronics (NFC, RFID, etc.), while other electronic components, such as control electronics, are located on the first, spaced-away PCB. Positioning the communication electronics near the front of the decorative layer can improve communication, for example, with a mobile device placed on top of the coil, compared to a more distant arrangement.

[0023] As previously mentioned, the automotive interior trim panel can include a shielding layer, with the shielding layer being located on the back of the coil, particularly between the coil and the circuit board. The shielding layer can be a shielding element and / or a coating.

[0024] The shielding layer is made of a material that is at least poorly or not electrically conductive. For example, the shielding layer includes ferrite or is made of ferrite.

[0025] It may be provided that the shielding layer, in particular together with the coil and / or the circuit board, is wholly or at least partially embedded in the plastic of the plastic layer.

[0026] It is also possible that a section of the plastic layer is arranged between a back side of the shielding layer and a front side of the circuit board.

[0027] In one embodiment, the vehicle interior trim part includes an electrical contact for the electrical connection of the coil to the circuit board.

[0028] Furthermore, the vehicle interior trim component may include a heat dissipation device. Firstly, the plastic layer itself can function as part of the heat dissipation device, since it is thermally conductive. Alternatively or additionally, one or more cooling elements and / or one or more heat exchangers, particularly within the plastic layer and / or on its reverse side, can be arranged as part of the heat dissipation device.

[0029] The vehicle interior trim panel can also incorporate an active cooling device as a heat dissipation device, particularly for cooling the coil and / or a mobile device placed on top of it. Specifically, the active cooling device can be a coil cooling system. It can be provided that one or more empty tubes and / or cables are arranged within the coil winding, through which a cooling medium flows. This cooling medium absorbs the heat in the area of ​​the coil and releases it elsewhere, for example, in a heat exchanger or directly to the environment.

[0030] Furthermore, the heat dissipation device can also be or include a thermally conductive adhesive, for example an adhesive bond with thermal conductivity and dielectric strength through a 2K-based gap filler.

[0031] Preferably, the plastic used to form the plastic layer comprises PUR or is made of PUR.

[0032] In one embodiment of the invention, the plastic of the plastic layer, for example PUR, is combined with at least one additive to enhance heat absorption and / or heat dissipation. This can, for example, increase the cooling effect of the plastic and thus of the plastic layer, for instance, to cool the coil and / or a mobile device placed on top of it. Suitable additives include, for example, metal beads or other materials.

[0033] The method according to the invention is provided for manufacturing an automotive interior trim part, in particular the automotive interior trim part according to the invention, wherein the automotive interior trim part comprises a decorative layer with a front and a back opposite the front, a plastic layer, wherein the plastic layer is arranged on the back of the decorative layer, and at least one wireless charging unit for wirelessly charging a mobile device placed on the front of the decorative layer, wherein the wireless charging unit comprises at least one coil and at least one circuit board for controlling the coil, wherein the coil is arranged on the back of the decorative layer, and wherein the coil is wholly or at least partially embedded in the plastic of the plastic layer.

[0034] The method according to the invention comprises the following steps: a) Providing the decorative layer with a front side and a back side opposite the front side, b) Providing the coil or applying the coil to the back of the decorative layer, c) Inserting the decorative layer and the coil into a casting tool, wherein the coil is or is arranged on the back side of the decorative layer, directly adjacent or spaced apart, d) Pouring a plastic material to form the plastic layer onto the back of the decorative layer, wherein the coil is wholly or at least partially embedded in the plastic of the plastic layer.

[0035] The term "pouring" refers to the process of pouring the plastic material into the mold, typically into a cavity of the mold. This includes both pouring without high pressure, particularly using gravity, and injection molding under high pressure. In the case of injection molding, the mold is an injection mold.

[0036] One embodiment of the invention provides that the coil is inserted into the casting mold at a distance from the decorative layer, for example by means of spacer elements in the mold, or is arranged in the mold. In this case, the plastic material for forming the plastic layer can be cast onto the back of the decorative layer in such a way that a section of the plastic layer is interspersed between the back of the decorative layer and the front of the coil.

[0037] According to another variant, the coil, for example a planar coil, is applied and / or printed onto the back of the decorative layer before being inserted into the casting tool.

[0038] It may be provided that, after the plastic material has been poured to form the plastic layer, the circuit board is placed on the back of the plastic layer.

[0039] Furthermore, it may be provided that, prior to the casting of the plastic material to form the plastic layer, the circuit board is arranged on the back of the coil, in particular when inserting it into the casting tool, for example directly on the back of the coil or on the back of a shielding layer that is arranged on the back of the coil, wherein the circuit board is wholly or at least partially embedded in the plastic of the plastic layer during casting.

[0040] Prior to casting, and in particular prior to or during the arrangement of the circuit board, a shielding layer can be arranged on the back of the coil, particularly when inserting it into the casting tool, wherein the shielding layer, in particular together with the coil, is wholly or at least partially embedded in the plastic of the plastic layer during casting.

[0041] The shielding layer is preferably made of a material that is at least poorly or non-conductive. Most preferably, the shielding layer comprises ferrite or is made of ferrite.

[0042] It may be provided that a section of the plastic layer is inter-flooded between a back side of the shielding layer and a front side of the circuit board.

[0043] Furthermore, it can be provided that the printed circuit board is inserted into the casting mold at a distance from the decorative layer, for example by means of spacers in the casting mold, or arranged at a distance from the decorative layer in the casting mold. This enables the aforementioned intermediate flooding.

[0044] Preferably, the plastic used to form the plastic layer comprises PUR or is formed from PUR.

[0045] It can be provided that an electrical connection is formed between the coil and the circuit board, whereby an electrical contact is arranged in the mold before the plastic material is poured to form the plastic layer, such that the contact connects the inserted coil to the inserted circuit board. Alternatively, when pouring the plastic material to form the plastic layer, a recess can first be formed in the plastic layer such that a contact between the circuit board and the coil can later be inserted into the recess.

[0046] The invention is further explained below with regard to its features and advantages by means of a description of exemplary embodiments and with reference to the accompanying schematic drawings. These show Fig. 1 a first embodiment of a motor vehicle interior trim part according to the invention in a schematic sectional view; Fig. 2 a second embodiment of a vehicle interior trim part according to the invention in a schematic sectional view; Fig. 3 a third embodiment of a vehicle interior trim part according to the invention in a schematic sectional view.

[0047] Fig. 1 to Fig. Figure 3 shows a vehicle interior trim part 10 according to the invention, comprising a decorative layer 11 with a front side 12 and a back side 13 opposite the front side 12, and a plastic layer 14, wherein the plastic layer 14 is arranged on the back side 13 of the decorative layer 11. The plastic of the plastic layer 14 can be polyurethane (PUR).

[0048] The automotive interior trim part 10 further comprises a wireless charging unit with a coil 15 and a circuit board 17 for wirelessly charging a mobile device placed on the front 12 of the decorative layer 11, wherein the coil 15 is arranged on the back of the decorative layer 11 and is at least partially embedded in the plastic of the plastic layer 14.

[0049] According to the exemplary embodiment Fig. 1 a front 16 of the coil 15 and the back 13 of the decorative layer 11 are spaced apart from each other, with a section of the plastic layer between the back 13 of the decorative layer 11 and the front 16 of the coil 15 being flooded.

[0050] Furthermore, the vehicle interior trim part 10 comprises, according to the embodiment shown, Fig. 1 A shielding layer 18 made of ferrite, wherein the shielding layer 18 is arranged on a rear side 19 of the coil 15. The shielding layer 18, together with the coil 15, is at least partially embedded in the plastic of the plastic layer 14.

[0051] Furthermore, the vehicle interior trim part 10 comprises a circuit board 17 for controlling the coil 15, which is arranged on a rear side 20 of the shielding layer 18, wherein the circuit board 17 is at least partially embedded in the plastic of the plastic layer 14.

[0052] The following describes a method for manufacturing the vehicle interior trim part 10 according to the embodiment shown. Fig. 1. The procedure comprises the following steps: According to step a), the decorative layer 11 is first provided with a front side 12 and a back side 13 opposite the front side 12. Furthermore, according to step b), coil 15 is provided.

[0053] Subsequently, a shielding layer 18 is arranged on the back 19 of the coil 15, and the coil 15 and the shielding layer 18 are mounted on a front 21 of a printed circuit board 17. The shielding layer 18 is ferrite.

[0054] A back side 20 of the shielding layer 18 is thus arranged on the front side 21 of the printed circuit board 17. The coil 15, the shielding layer 18 and the printed circuit board 17 are thus pre-assembled to form a PCBA (printed circuit board assembly).

[0055] According to step c), the decorative layer 11 and the coil 15 together with the shielding layer 18 and circuit board 17 arranged on it, i.e. the pre-assembled PCBA, are placed in a casting tool.

[0056] The coil 15 is arranged at a distance from the back side 13 of the decorative layer 11, for example by means of spacers that are inserted into the casting tool.

[0057] According to step d), a plastic material is poured onto the back 13 of the decorative layer 11 in the casting tool to form the plastic layer 14, thereby casting the plastic layer 14, whereby the coil 15, the shielding layer 18, and the circuit board 17 are at least partially embedded in the plastic of the plastic layer 14. The plastic material can be PUR.

[0058] The plastic material for forming the plastic layer 14 is cast onto the back 13 of the decorative layer 11 in such a way that a section of the plastic layer 14 is interspersed between the back 13 of the decorative layer 11 and the front 16 of the coil 15.

[0059] According to the exemplary embodiment Fig. 2 the coil 15 is applied and / or printed on the back 13 of the decorative layer 11.

[0060] The automotive interior trim part 10 also includes a ferrite shielding layer 18, the shielding layer 18 being arranged on the rear side 19 of the coil 15. The shielding layer 18, together with the coil 15, is at least partially embedded in the plastic of the plastic layer 14.

[0061] Furthermore, the vehicle interior trim part 10 includes a printed circuit board 17 for controlling the coil 15, the printed circuit board 17 being at least partially embedded in the plastic of the plastic layer 14. The front face 21 of the printed circuit board 17 is spaced apart from the back face 20 of the shielding layer 18 and thus also from the coil 15. The vehicle interior trim part 10 therefore also includes a contact 22 for electrically connecting the coil 15, the contact 22 of which electrically connects the coil 15 to the printed circuit board 17.

[0062] The following describes a method for manufacturing the vehicle interior trim part 10 according to the embodiment shown. Fig. 2. The procedure comprises the following steps: According to step a), the decorative layer 11 is first provided with a front side 12 and a back side 13 opposite the front side 12. According to step b), the coil 15 is further provided for wireless charging of a mobile device placed on the front 12 of the decorative layer 11, for example by printing the coil 15 onto the back 13 of the provided decorative layer 11, in particular by means of screen printing, or by means of additive manufacturing.

[0063] Furthermore, a shielding layer 18 is provided. Shielding layer 18 is ferrite.

[0064] Subsequently, according to step c), the decorative layer 11 with the printed or applied coil 15 and the shielding layer 18 are placed in a casting tool, with the shielding layer 18 being arranged on the back 19 of the coil 15.

[0065] Before casting, a circuit board 17 for controlling the coil 15 is placed in the casting tool at a distance from the back 20 of the shielding layer 18.

[0066] Furthermore, a contact element 22 is incorporated into the casting tool, the contact element 22 being designed for electrically connecting the coil 15 to the circuit board 17. The contact element 22 is arranged in the casting tool such that it electrically connects the coil 15 to the circuit board 17.

[0067] Subsequently, according to step d), a plastic material is cast onto the back side 13 of the decorative layer 11 to form the plastic layer 14, thereby casting the plastic layer 14. The coil 15, the shielding layer 18, the circuit board 17, and the contacts 22 are at least partially embedded in the plastic of the plastic layer 14. A section of the plastic layer 14 is poured between the back side 20 of the shielding layer 18 and the front side 21 of the circuit board 17. The plastic material can be polyurethane (PUR).

[0068] According to the exemplary embodiment Fig. 3 The automotive interior trim part 10 comprises a ferrite shielding layer 18, the shielding layer 18 being arranged on the rear side 19 of the coil 15. The shielding layer 18, together with the coil 15, is at least partially embedded in the plastic of the plastic layer 14.

[0069] Furthermore, the vehicle interior trim part 10 comprises, according to the embodiment shown, Fig. 3 a printed circuit board 17 for controlling the coil 15, wherein the printed circuit board 17 is arranged on the back 23 of the plastic layer 14.

[0070] A section of the plastic layer 14 is arranged between the back side 20 of the shielding layer 18 and the front side 21 of the printed circuit board 17. Therefore, the automotive interior trim part 10 includes a contact 22 for electrically connecting the coil 15, the contact 22 connecting the coil 15 to the printed circuit board 17.

[0071] The following describes a method for manufacturing the vehicle interior trim part 10 according to the embodiment shown. Fig. 3. The procedure comprises the following steps: According to step a), the decorative layer 11 is first provided with a front side 12 and a back side 13 opposite the front side 12. According to step b), the coil 15 is further provided for wireless charging of a mobile device placed on the front 12 of the decorative layer 11.

[0072] Furthermore, a shielding layer 18 is provided. Shielding layer 18 is ferrite.

[0073] Subsequently, according to step c), the decorative layer 11, the coil 15, and the shielding layer 18 are placed in a casting mold, with the coil 15 being positioned on the back side 13 of the decorative layer 11 and the shielding layer 18 on the back side 19 of the coil 15. Furthermore, according to a first method variant, a contact 22 for forming the electrical connection between the coil 15 and the circuit board 17 can be placed in the casting mold. In a second method variant, a punch is positioned in the casting mold such that, during the subsequent casting process, a recess is formed in the plastic layer 14, through which an electrical connection between the coil 15 and the circuit board 17 can be established by inserting a contact 22.

[0074] Subsequently, according to step d), a plastic material is cast onto the back 13 of the decorative layer 11 to form the plastic layer 14, thereby casting the plastic layer 14, whereby the coil 15 and the shielding layer 18 are at least partially embedded in the plastic of the plastic layer 14. In the aforementioned first process variant, the contact 22 is also at least partially embedded in the plastic of the plastic layer 14. The plastic material can be PUR.

[0075] After the casting, a circuit board 17 for the coil 15 is arranged on the back 23 of the plastic layer 14.

[0076] In the aforementioned second method variant, a recess is first formed in the plastic layer 14 during the aforementioned casting process. Subsequently, before or together with the arrangement of the circuit board 17, the electrical contact 22 between the circuit board and the coil is inserted into the recess.

[0077] In the exemplary embodiments according to Fig. 2 and Fig.3. An additional printed circuit board (PCB) can be arranged directly on the back side 20 of the shielding layer 18, meaning that the coil 15 is then assigned two PCBs. This additional PCB is not spaced from the shielding element 18, and the plastic layer 14 is not interposed between this additional PCB and the shielding element. This additional PCB is thus located near the front side 12 of the decorative layer 11. This additional PCB can, for example, include communication electronics (NFC, RFID, etc.), while other electronic components, such as control electronics, are arranged on the spaced-away PCB 17. Arranging the communication electronics near the front side of the decorative layer can improve communication, for example, with a mobile device placed on top, compared to an arrangement further away. Reference symbol list 10 Automotive interior trim parts 11 Decorative layer 12 Front side (decorative layer) 13 Back side (decorative layer) 14 plastic layers 15 coils 16 Front of the coil 15 17 printed circuit board 18 Shielding layer 19 Back of the coil 15 20 Back side (shielding layer) 21 Front side (circuit board) 22 electrical contacting 23 Back side of the plastic layer 14

Claims

[1] Automotive interior trim part (10) comprising a decorative layer (11) with a front (12) and a back (13) opposite the front (12), a plastic layer (14), wherein the plastic layer (14) is arranged on the back (13) of the decorative layer (11), and at least one wireless charging unit for wirelessly charging a mobile device placed on the front (12) of the decorative layer (11), wherein the wireless charging unit comprises at least one coil (15) and at least one circuit board (17) for driving the coil (15), wherein the coil (15) is arranged on the back side of the decorative layer (11), and wherein the coil (15) is wholly or at least partially embedded in the plastic layer (14). [2] Automotive interior trim part (10) according to claim 1, characterized by, that a section of the plastic layer (14) is arranged between the back (13) of the decorative layer (11) and a front (16) of the at least one coil (15). [3] Automotive interior trim part (10) according to claim 1, characterized by , that the coil (15) is applied and / or printed on the back (13) of the decorative layer (11). [4] Automotive interior trim part (10) according to one of the preceding claims, characterized by , that the circuit board (17) is arranged on the back (23) of the plastic layer (14) and / or is wholly or at least partially embedded in the plastic layer (14). [5] Automotive interior trim part (10) according to any one of the preceding claims, characterized by , that the automotive interior trim part (10) comprises a shielding layer (18), wherein the shielding layer (18) is arranged on the rear (19) of the coil (15). [6] Automotive interior trim part (10) according to claim 5, characterized bythat the shielding layer (18) is wholly or at least partially embedded in the plastic layer (14). [7] Automotive interior trim part (10) according to claim 5 or 6, characterized by , that a section of the plastic layer (14) is arranged between a back side (20) of the shielding layer (18) and a front side (21) of the circuit board (17). [8] Automotive interior trim part (10) according to one of the preceding claims, characterized by , that the vehicle interior trim part (14) includes an electrical contact (22) for electrically connecting the coil (15) to the circuit board (17). [9] Automotive interior trim part (10) according to any one of the preceding claims, characterized by , that the automotive interior trim part (10) comprises a heat dissipation device comprising the plastic layer (14) itself and / or one or more heat sinks and / or one or more heat exchangers and / or an active cooling device and / or a thermally conductive adhesive. [10] Automotive interior trim part (10) according to one of the preceding claims, characterized by , that the plastic of the plastic layer (14) comprises or is PUR. [11] Automotive interior trim part (10) according to any one of the preceding claims, characterized by , that the plastic of the plastic layer (14) is mixed with at least one additive to enhance heat absorption and / or heat dissipation. [12] Method for manufacturing an automotive interior trim part (10), wherein the automotive interior trim part comprises a decorative layer (11) with a front (12) and a back (13) opposite the front (12), a plastic layer (14), wherein the plastic layer (14) is arranged on the back (13) of the decorative layer (11), and at least one wireless charging unit for wirelessly charging a mobile device placed on the front (12) of the decorative layer (11), wherein the wireless charging unit comprises at least one coil (15) and at least one circuit board (17) for controlling the coil (15), wherein the coil (15) is arranged on the back (13) of the decorative layer (11), and wherein the coil (15) is wholly or at least partially embedded in the plastic layer (14), wherein the method comprises the steps: a) Providing the decorative layer (11) with a front side (12) and a back side (13) opposite the front side (12), b) Providing the coil (15) or applying the coil (15) to the back of the decorative layer (11), c) Inserting the decorative layer (11) and the coil (15) into a casting tool, wherein the coil (15) is or is arranged on the back (13) of the decorative layer (11), d) Pouring a plastic material to form the plastic layer (14) onto the back (13) of the decorative layer (11), wherein the coil (15) is wholly or at least partially embedded in the plastic of the plastic layer (14). [13] Method according to claim 12, characterized by, that the coil (15) is placed in or arranged in the casting tool at a distance from the decorative layer (11), and the plastic material for forming the plastic layer (14) is poured onto the back (13) of the decorative layer (11) in such a way that a section of the plastic layer (14) is flooded between the back (13) of the decorative layer (11) and the front (16) of the coil (15). [14] Method according to claim 12, characterized by , that the coil (15) is applied and / or printed onto the back (13) of the decorative layer (11) before being placed in the casting tool. [15] Method according to any one of claims 12 to 14, characterized by , that after the plastic material has been poured to form the plastic layer (14) the circuit board (17) is arranged on the back (23) of the plastic layer (14). [16] Method according to claims 12 to 14, characterized by, that prior to the casting of the plastic material to form the plastic layer (14) the circuit board (17) is arranged on the back (19) of the coil (15), wherein the circuit board (17) is wholly or at least partially embedded in the plastic of the plastic layer (14) during casting. [17] Method according to any one of claims 12 to 16, characterized by , that prior to casting a shielding layer (18) is arranged on a rear side (19) of the coil (15), wherein the shielding layer (18) is wholly or at least partially embedded in the plastic of the plastic layer (14) during casting. [18] Method according to claim 17, characterized by , that a section of the plastic layer (14) is inter-flooded between the back (20) of a shielding layer (18) and a front (21) of the circuit board (17). [19] Method according to any one of claims 12 to 18, characterized by, that the plastic for forming the plastic layer (14) comprises or is PUR and / or is combined with at least one additive to enhance heat absorption and / or heat dissipation. [20] Method according to any one of claims 12 to 19, characterized by , that an electrical connection is formed between coil (15) and circuit board (17), wherein either an electrical contact (22) is arranged in the mold before the plastic material is poured to form the plastic layer (14) in such a way that the contact (22) connects the inserted coil (15) to the inserted circuit board (17), or when pouring the plastic material to form the plastic layer (14) a recess is first formed in the plastic layer (14) in such a way that a contact (22) between circuit board (17) and coil (15) can later be inserted into the recess.

Images