Interior parts for vehicles and vehicles

Abstract

To provide an interior part for a vehicle that can expand the area in which a solar cell is mounted in the interior of the vehicle. [Solution] An interior part for a vehicle includes an interior part main body having a curved surface, and a solar cell panel arranged along the curved surface, the solar cell panel having solar cells including a power generation layer, the power generation layer being made of a flexible material.

Description

[Technical Field]

[0001] The present disclosure relates to interior parts for vehicles and vehicles. [Background technology]

[0002] BACKGROUND ART Vehicles equipped with solar panels on the exterior of their bodies are known. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2024-039144 Summary of the Invention [Problem to be solved by the invention]

[0004] In order to increase the amount of power generated by solar panels, it is desirable to increase the area on the vehicle where the solar panels are installed. In this regard, since sunlight also reaches the interior of the vehicle, there is room to install solar panels there as well. However, since many parts of the interior of the vehicle are made up of curved surfaces, it has sometimes been difficult to install conventional solar panels, which lack flexibility, in the interior of the vehicle. [Means for solving the problem]

[0005] The present disclosure can be realized in the following forms.

[0006] (1) According to one aspect of the present disclosure, there is provided an interior part for a vehicle. The interior part includes an interior part main body having a curved surface and a solar cell panel arranged along the curved surface, the solar cell panel having solar cells including a power generation layer, the power generation layer being made of a flexible material. According to this aspect of the interior part for a vehicle, the power generation layer is made of a flexible material, so that the solar cell panel including the power generation layer made of a flexible material can be arranged along the curved surface of the interior of the vehicle. This allows for an increased installation area for the solar cell panel in the interior of the vehicle. (2) In the vehicle interior part of the above embodiment, the power generation layer is made of a material having a perovskite structure. According to this vehicle interior part, the power generation layer is made of a material having a perovskite structure, so that the solar cell panel including the power generation layer can be arranged along the curved surface of the vehicle interior. (3) In the vehicle interior part of the above aspect, the interior part main body and the solar cell panel are integrally formed. According to this vehicle interior part, the interior part main body and the solar cell are integrally formed, so that the solar cell can be easily mounted on the interior part main body. Therefore, the solar cell panel can be easily mounted in the interior of the vehicle. (4) In the vehicle interior part of the above aspect, the interior part body further includes electrical wiring formed integrally with the interior part body, and the electrical wiring is electrically connected to the solar cell panel. According to this aspect of the vehicle interior part, the electrical wiring is formed integrally with the interior part body, making it easy to form the electrical wiring on the interior part body. Therefore, power generated by the solar cells of the solar cell panel can be directly supplied to various devices installed in the vehicle. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a diagram partially illustrating the interior of a vehicle equipped with an interior part for a vehicle according to an embodiment of the present invention. [Figure 2]1 is a cross-sectional view schematically showing the configuration of a solar cell included in a solar cell panel according to an embodiment of the present invention. [Figure 3] 3A to 3C are diagrams schematically illustrating a process for forming electrical wiring in the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] A. Implementation: FIG. 1 is a diagram partially illustrating the interior of a vehicle 100 equipped with a vehicle interior part 10 according to this embodiment. The vehicle interior part 10 includes an interior part main body 20 and a solar cell panel 30. The interior part 10 according to this embodiment is a vehicle dashboard. In this disclosure, the dashboard refers to an interior part attached in front of the front seats of the vehicle 100, on which instruments, electronic devices, a car navigation system, an airbag, and the like are installed. Hereinafter, the interior part 10 will also be referred to as the dashboard 10, and the interior part main body 20 will also be referred to as the dashboard main body 20. In this disclosure, the vehicle 100 may be a vehicle that travels on wheels or tracks, such as a passenger car, truck, bus, motorcycle, automobile, tank, or construction vehicle. The vehicle 100 includes an electric vehicle (BEV: Battery Electric Vehicle), a gasoline-powered vehicle, a hybrid vehicle, and a fuel cell vehicle. In this disclosure, the front of the driver seated in the vehicle 100 is referred to as the "forward direction," and the upper side in the vertical direction for the driver seated in the vehicle 100 is referred to as the "upward direction."

[0009] <Dashboard body 20> The dashboard main body 20 is the main body of the dashboard 10 excluding the solar cell panel 30 and the electrical wiring W described below. As shown in FIG. 1 , the surface of the dashboard main body 20 that faces the windshield FG is formed as a continuous, smooth surface. The surface of the dashboard main body 20 as a whole generally has an upwardly convex curve. The dashboard main body 20 is primarily made of a resin material. While the resin material is not particularly limited, one example is polyvinyl chloride. The dashboard main body 20 also contains a small amount of metal catalyst for forming the electrical wiring W. The dashboard main body 20 is one of the suitable locations in the interior of the vehicle 100 for mounting the solar cell panel 30, as it can provide a large mounting area for the solar cell panel 30 and is also a part that is easily exposed to sunlight from the windshield FG.

[0010] <Solar panel 30> The solar cell panel 30 is configured by combining a plurality of solar cells 35, which will be described later, into a single panel. The solar cell panel 30 and the dashboard main body 20 are integrally formed. Specifically, the solar cell panel 30 is arranged along the curved surface of the dashboard main body 20. Note that a plurality of solar cell panels 30 may be mounted on the surface of the dashboard main body 20 to match the surface shape of the dashboard main body 20.

[0011] FIG. 2 is a cross-sectional view schematically illustrating the configuration of a solar cell 35 included in the solar cell panel 30 of this embodiment. The solar cell 35 is configured by stacking a negative electrode L1, an electron transport layer L2, a power generation layer L3, a hole transport layer L4, and a positive electrode L5 on the surface of the dashboard body 20 in this order from top to bottom. A sealing layer 36 for protecting the solar cell 35 is provided on top of the negative electrode L1. The sealing layer 36 is made of, for example, ethylene vinyl acetate resin. Note that the solar cell 35 is not limited to the above configuration, and may be configured by stacking a positive electrode L5, a hole transport layer L4, a power generation layer L3, an electron transport layer L2, and a negative electrode L1 in this order from top to bottom. Alternatively, either the electron transport layer L2 or the hole transport layer L4 may be omitted.

[0012] The power generation layer L3 of the solar cell 35 in the solar cell panel 30 is made of a flexible material. In this embodiment, the power generation layer L3 is made of a material having a perovskite structure, and as an example, is made of a methylammonium lead iodide material. The solar cell panel 30, which includes a material having a perovskite structure in the power generation layer L3, is flexible and resistant to bending, and can be placed along the curved surface of the dashboard body 20.

[0013] In addition, in conventional solar cell panels that include a material with a perovskite structure in the power generation layer, the top of the encapsulation layer is covered with a cover glass, but in the solar cell panel 30 of this embodiment, the top of the encapsulation layer 36 is not covered with a cover glass. This is because the solar cell panel 30 is mounted in the interior of the vehicle 100, and is therefore less susceptible to deterioration due to humidity and heat, and there is less need to cover the top of the encapsulation layer 36 with an additional cover glass. As a result, the solar cell panel 30 has greater flexibility and can be manufactured at lower cost than a solar cell panel in which the top of the encapsulation layer is covered with a cover glass.

[0014] <How to make Dashboard 10> Next, a method for manufacturing the dashboard 10 in which the dashboard main body 20 and the solar cell panel 30 are integrally formed will be described. First, the solar cell panel 30, which has been manufactured using a known method, is placed inside an injection mold for the dashboard main body 20. Next, the raw material for the dashboard main body 20, which has been heated and melted, is injected into the injection mold. The injection mold is then cooled, and the injected raw material for the dashboard main body 20 is solidified. In this way, the dashboard 10 in which the dashboard main body 20 and the solar cell panel 30 are integrally formed, is manufactured.

[0015] <Method for forming electrical wiring W> Next, a method for forming the electrical wiring W on the dashboard main body 20 will be described using FIG. 3 . FIG. 3 is a diagram schematically illustrating a process for forming the electrical wiring W according to this embodiment. The electrical wiring W in this embodiment is formed directly on the dashboard main body 20 using LDS (Laser Direct Structuring) technology. As shown in FIG. 3 , in process P1, the dashboard main body 20 is prepared. A solar cell panel 30 (not shown) is integrally formed on the dashboard main body 20. In process P2, an infrared laser is irradiated onto the area where the electrical wiring W is to be formed. The laser-irradiated area activates the metal catalyst contained in the dashboard main body 20. In process P3, electroless plating is performed on the dashboard main body 20. As a result, the laser-irradiated area is formed as the electrical wiring W, and the electrical wiring W is integrally formed on the dashboard main body 20.

[0016] The electrical wiring W is electrically connected to the solar cell panel 30. The electrical wiring W is also electrically connected to various devices installed in the vehicle. As a result, the power generated by the solar cell panel 30 is directly supplied to the various devices installed in the vehicle via the electrical wiring W. That is, the power generated by the solar cell panel 30 is directly supplied to the various devices without going through a vehicle battery (not shown) installed in the vehicle 100. In this disclosure, the vehicle battery refers to a battery that supplies power to the traction motor. Therefore, a configuration in which power is supplied to the various devices directly without going through the vehicle battery can shorten the electrical wiring W compared to a configuration in which power is supplied to the various devices indirectly via the vehicle battery. The various devices include, for example, interior lamps, a clock, various displays, gauges, electronic devices, and an in-vehicle fan.

[0017] According to the vehicle interior part 10 of the embodiment described above, the power generation layer L3 is made of a flexible material, and therefore the solar cell panel 30 including the power generation layer L3 made of a flexible material can be arranged along the curved surface of the interior of the vehicle 100. This allows the mounting area of ​​the solar cell panel 30 in the interior of the vehicle 100 to be increased.

[0018] Furthermore, according to the vehicle interior part 10 of the embodiment, the power generation layer L3 is made of a material having a perovskite structure, so that the solar cell panel 30 including the power generation layer L3 can be arranged along the curved surface of the interior of the vehicle 100.

[0019] Furthermore, according to the vehicle interior part 10 of the embodiment, the interior part body 20 and the solar cell panel 30 are integrally formed, so that the solar cell panel 30 can be easily mounted on the interior part body 20. Therefore, the solar cell panel 30 can be easily mounted in the interior of the vehicle 100.

[0020] Furthermore, according to the vehicle interior part 10 of the embodiment, the electrical wiring W is formed integrally with the interior part body 20, so that the electrical wiring W can be easily formed on the interior part body 20. Therefore, the power generated by the solar cells 35 of the solar cell panel 30 can be directly supplied to various devices installed in the vehicle.

[0021] B. Other Embodiments: (B1) In this embodiment, the power generation layer L3 of the solar cell 35 is made of a material having a perovskite structure, but the present disclosure is not limited thereto. The power generation layer L3 of the solar cell 35 may be made of, for example, amorphous silicon, CIS-based, CdTe-based, organic thin film-based, or dye-sensitized materials. In this case, at least one of the electron transport layer L2 and the hole transport layer L4 may be omitted. Furthermore, the solar cell 35 may be a so-called tandem solar cell, in which two or more solar cells 35 having the above-mentioned material as the power generation layer L3 are arranged in series. Because the power generation layer L3 made of the above-mentioned material is flexible, the solar cell panel 30 including the power generation layer L3 made of the above-mentioned material can be arranged along the curved surface of the interior of the vehicle 100. In other words, the power generation layer L3 made of a flexible material can be applied to the solar cell panel 30 in the interior part 10 of the present disclosure.

[0022] (B2) In this embodiment, the solar cell panel 30 is mounted on the surface of the dashboard main body 20, but the present disclosure is not limited to this. For example, the solar cell panel 30 may be mounted on the steering wheel, a seat, the inside of each door, near the tailgate, the partition between the front and rear seats, the space next to the shift lever, the inside of a pillar, a rearview mirror, a window glass, or the like. In other words, the interior part 10 may be a steering wheel, a seat, or the like. Many of the above-listed locations are made up of curved surfaces, but the power generation layer L3 of the solar cell 35 in the solar cell panel 30 is flexible, so the solar cell panel 30 can be arranged along the curved surfaces of the interior of the vehicle 100.

[0023] (B3) In this embodiment, the dashboard body 20 and the solar cell panel 30 are integrally formed, but the present disclosure is not limited to this. After the dashboard body 20 is molded by injection molding, the solar cell panel 30 may be attached to the surface of the dashboard body 20 by a known method, such as a method using an adhesive.

[0024] (B4) In the present embodiment, the electrical wiring W is formed integrally with the dashboard body 20, but the present disclosure is not limited to this. The electrical wiring W may be formed using known metal wiring or the like, as long as it is electrically connected to the solar cell panel 30.

[0025] (B5) In the present embodiment, the electrical wiring W is formed after the dashboard body 20 and the solar cell panel 30 are integrally formed, but the present disclosure is not limited to this. The electrical wiring W may be formed simultaneously with injection molding of the dashboard body 20. For example, the electrical wiring W may be formed on the dashboard body 20 by performing injection molding while a film on which an electrical wiring pattern has been applied is sandwiched between injection molding dies.

[0026] (B6) In this embodiment, the electrical wiring W is electrically connected to various devices installed in the vehicle, but the present disclosure is not limited to this. The electrical wiring W may be connected to a vehicle battery so that generated power is supplied to the vehicle battery. Alternatively, an auxiliary battery may be provided separately from the vehicle battery, and the electrical wiring W may be connected to the auxiliary battery so that generated power is supplied to the auxiliary battery.

[0027] The present disclosure is not limited to the above-described embodiments and can be realized in various configurations without departing from the spirit thereof. For example, the technical features in the embodiments corresponding to the technical features in each aspect described in the Summary of the Invention section can be appropriately replaced or combined to solve some or all of the above-described problems or achieve some or all of the above-described effects. Furthermore, if a technical feature is not described as essential in this specification, it can be appropriately deleted. [Explanation of symbols]

[0028] 100...vehicle, 10...interior part (dashboard), 20...interior part main body (dashboard main body), 30...solar cell panel, 35...solar cell, 36...sealing layer, L1...negative electrode, L2...electron transport layer, L3...power generation layer, L4...hole transport layer, L5...positive electrode, FG...windshield, W...electrical wiring

Claims

1. An interior part for a vehicle, an interior component body having a curved surface; a solar cell panel arranged along the curved surface, the solar cell panel having a solar cell including a power generation layer; The power generation layer is made of a flexible material.

2. The interior part according to claim 1, The power generation layer is made of a material having a perovskite structure.

3. The interior part according to claim 1, The interior part body and the solar cell panel are integrally formed.

4. The interior part according to claim 1, The interior part body further includes electrical wiring formed integrally with the interior part body, The electrical wiring is electrically connected to the solar cell panel.

5. A vehicle comprising the interior part according to any one of claims 1 to 4.

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