Interior trim assembly

Abstract

The present invention relates to an interior trim assembly wherein the interior trim assembly comprises a trim part (1) having an upper surface and a lower surface, the trim part (1) comprising graphene, the lower surface of the trim part (1) being integrated with a semiconductor cooling plate (2) for absorbing heat from the lower surface of the trim part (1), the semiconductor cooling plate (2) being thermally insulated from the upper surface of the trim part (1) when the temperature of the upper surface of the trim part (1) rises. The temperature difference between the upper surface and the lower surface of the decorating part (1) can make graphene generate electric energy, and after the electric energy between the upper surface and the lower surface of the decorating part (1) is supplied to the semiconductor cooling plate (2), the semiconductor cooling plate (2) can make the temperature of the decorating part (1) reduced.

Description

Technical Field

[0001] The invention relates to an interior trim assembly in the field of vehicle interior trims. Background Art

[0002] In today's vehicle market, with the continuous growth of consumer demand and the increasing specialization of consumer groups, more and more users expect that every component of the vehicle can reflect excellent quality in the details. The vehicle is no longer just a simple means of transportation, but has become a place that can bring comfort and pleasure to people.

[0003] Among them, the vehicle interior system is an important part of the vehicle. As the place where passengers perceive the atmosphere most directly, the vehicle interior has important value and significance. In order to meet the various needs of passengers, interior parts have more and more functions.

[0004] In sunny weather, sunlight often shines on the cab for a long time, causing a lot of heat to be generated in the cab. Even if the front of the vehicle is equipped with a windshield, it still cannot effectively dissipate the heat. In addition, the reflected light generated by sunlight shining on the decorative parts may also interfere with the driver's vision, thus creating certain safety hazards. There is no particularly effective solution in the current existing technology. Summary of the invention

[0005] It is worth noting that the purpose of the present invention is to overcome one or more shortcomings that have been found in the background technology, namely, to provide an interior assembly, wherein the interior assembly includes a decorative part having an upper surface and a lower surface, the decorative part includes graphene, and the lower surface of the decorative part is integrated with a semiconductor cooling plate for absorbing heat from the lower surface of the decorative part. When the temperature of the upper surface of the decorative part increases, the temperature difference between the upper and lower surfaces of the decorative part can enable the graphene to generate electrical energy. After the electrical energy between the upper and lower surfaces of the decorative part is provided to the semiconductor cooling plate, the semiconductor cooling plate can reduce the temperature of the decorative part.

[0006] The interior trim assembly according to the present invention can effectively reduce the heat in the cab. When the vehicle engine is turned off and no electricity is provided, the semiconductor cooling plate can generate electricity. When electricity is provided, it can also generate a thermoelectric effect, thereby reducing the temperature of the surface of the decorative part, resulting in a lower temperature in the cab.

[0007] In addition, graphene configured on decorative parts can dissipate heat, thereby reducing the impact of light reflection and the temperature in the cabin.

[0008] In different embodiments of the method according to the invention, we can rely on one and / or more of the following configurations, alone or in combination:

[0009] In one embodiment, the raw material of the decorative element is pre-mixed with graphene before processing.

[0010] Optionally, the upper and lower surfaces of the decorative element are respectively coated with at least one layer of graphene film.

[0011] Preferably, the at least one graphene film (11) has a thickness of 1 μm to 100 μm.

[0012] In one embodiment, the semiconductor cooling plate includes a P-type semiconductor and an N-type semiconductor, the P-type semiconductor is made of Bi2Te3-Sb2Te3 material, and the N-type semiconductor is made of Bi2Te3-Bi2Se3 material.

[0013] In one embodiment, the interior trim assembly comprises an energy conversion device located on the upper surface of the decorative element, the energy conversion device comprises a photovoltaic cell assembly and an optical waveguide, wherein the photovoltaic cell assembly is mounted on at least one side of the optical waveguide. The length and width of the optical waveguide are much greater than its thickness, and it is a sheet-like optical structure.

[0014] In one embodiment, the substrate of the optical waveguide is made of a transparent material such as PC or PMMA.

[0015] In one embodiment, the optical waveguide is doped with quantum dots to absorb different wavelengths of the spectrum. Quantum dots, also known as light absorbing nanoparticles, or colloidal quantum dots, absorb some portion of the solar flux and re-emit that energy as longer wavelength photoluminescence.

[0016] The size of quantum dots can be tuned to absorb different wavelengths of the spectrum (such as absorbing infrared light, or absorbing visible light. In addition, multi-layer optical waveguides can also be used to absorb more spectra), thereby releasing hot electrons to generate electromotive force.

[0017] Optionally, the optical waveguide is provided with luminescent dopants, such as styrenic and phosphorescent dopants.

[0018] Preferably, the thickness of the optical waveguide is between 1 mm and 4 mm.

[0019] In one embodiment, at least one layer of fluorescent ink is printed on the surface of the light guide.

[0020] Fluorescent ink can absorb radiation of a specific wavelength or band and emit radiation of another wavelength or band. Specifically, after printing fluorescent ink on an optical waveguide, it can absorb sunlight, and then the photovoltaic cell module can absorb the wavelength fluorescence. Fluorescence that meets certain conditions can propagate over a longer distance in the optical waveguide.

[0021] In one embodiment, the energy conversion device further includes a specular reflector which is metallized and disposed on at least one side surface of the optical waveguide.

[0022] For example, mirror reflectors are arranged on two adjacent sides of the optical waveguide, and photovoltaic cell components are arranged on the other two opposite adjacent sides of the optical waveguide, or mirror reflectors are arranged on one to three of the four sides of the optical waveguide, and then photovoltaic cell components are arranged on the remaining sides.

[0023] Preferably, the specular reflector is arranged on a side of the optical waveguide opposite to the photovoltaic cell assembly.

[0024] In one embodiment, the material of the mirror reflector is aluminum, silver or indium.

[0025] Optionally, a selective reflection layer is provided on the surface of the optical waveguide, wherein a specular reflector (e.g. Figure 4 The bottom surface of the optical waveguide in the optical waveguide is a photonic crystal or an optical high-reflection coating.

[0026] Through the energy conversion device in the interior assembly of the present invention, the sunlight collected by the large-area optical waveguide can be concentrated on the photovoltaic cell assembly installed on the small-area side, so that the solar energy brought by the sunlight can be effectively converted. Moreover, since there is no need to arrange a larger area to install the photovoltaic cell assembly, it has higher cost-effectiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] It should be understood that in the present invention, except for obvious contradictory or incompatible situations, all features, variations and / or specific embodiments can be combined in various combinations.

[0028] Other features and advantages of the present invention will become apparent from the following non-limiting examples, taken in conjunction with the accompanying drawings, in which:

[0029] - Figure 1 is a cross-sectional view showing an interior trim assembly according to one embodiment of the present invention.

[0030] - Figure 2 is a cross-sectional view showing an interior trim assembly according to another embodiment of the present invention.

[0031] - Figure 3 FIG. 1 is a schematic diagram showing an interior trim assembly located in a vehicle cabin according to an embodiment of the present invention.

[0032] - Figure 4 Schematic diagram showing an energy conversion device of an interior trim assembly according to one embodiment of the present invention. DETAILED DESCRIPTION

[0033] It should be understood that the above drawings are not true to scale, but are only simplified diagrams for illustrating various preferred features of the basic principles of the present invention. The design features disclosed in the present invention, such as size, direction, positioning and shape, are determined according to specific applications and use environments.

[0034] The present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings. In these drawings, the same reference numerals refer to the same or equivalent elements of the present invention in all drawings.

[0035] Figure 1 A cross-sectional view of an interior trim assembly according to an embodiment of the present invention is shown, wherein the interior trim assembly comprises a decorative element 1 having an upper surface and a lower surface, the decorative element 1 comprises graphene, and a semiconductor cooling plate 2 is integrated on the lower surface of the decorative element 1 .

[0036] Specifically, the raw material of the decorative part 1 is pre-mixed with graphene and then processed, so that the finished decorative part 1 has the characteristics of graphene.

[0037] refer to Figure 2 , which shows a cross-sectional view of an interior trim assembly according to another embodiment of the present invention, wherein the upper and lower surfaces of the decorative element 1 are respectively coated with at least one layer of graphene film 11 .

[0038] The thickness of each layer of graphene film 11 can vary between 1 μm and 100 μm according to specific circumstances, and its shape can be designed according to the actual surface of the decorative element 1 .

[0039] Since graphene has very good thermal conductivity and also has very good optical properties, when the decorative element 1 is configured with graphene, it can effectively reduce the lighting reflection problem caused by sunlight and can dissipate the heat caused by sunlight.

[0040] The semiconductor cooling plate 2 can absorb heat from the graphene film 11 on the lower surface of the decorative part 1. Preferably, the semiconductor cooling plate 2 includes a P-type semiconductor and an N-type semiconductor. The P-type semiconductor is made of Bi2Te3-Sb2Te3 material, and the N-type semiconductor is made of Bi2Te3-Bi2Se3 material. It has the advantages of long life cycle, environmental protection and high efficiency.

[0041] When the engine of the vehicle is turned off, the upper surface of the decorative part 1 becomes very hot due to sunlight. As time goes by, the temperature of the upper surface of the decorative part 1 continues to rise. Due to the characteristics of graphene and the semiconductor cooling plate 2, the temperature difference between the upper and lower surfaces of the decorative part 1 generates electrical energy, which can be stored or used by the semiconductor cooling plate 2.

[0042] When the engine of the vehicle is started, electrical energy will be supplied to the semiconductor cooling plate 2, and the upper surface temperature of the decorative member 1 will decrease through the thermoelectric effect, which helps to reduce the cabin temperature of the vehicle in a positive manner.

[0043] By arranging the graphene and semiconductor cooling plate 2 on the decorative part 1, the influence of sunlight on the users in the vehicle cab can be effectively reduced, and the cooling in the cab can be achieved, thereby improving the comfort of the vehicle users.

[0044] refer to Figure 3 , which shows a schematic diagram of an interior decoration assembly located in a vehicle cab according to an embodiment, wherein the interior decoration assembly further includes an energy conversion device located on the upper surface of the decorative member 1.

[0045] Figure 4 A schematic diagram of an energy conversion device of an interior trim assembly according to an embodiment of the present invention is shown, wherein the energy conversion device comprises a photovoltaic cell assembly 4 and an optical waveguide 3 , wherein the photovoltaic cell assembly 4 is mounted on at least one side of the optical waveguide 3 .

[0046] Generally, the length and width of the optical waveguide 3 are much greater than its thickness, and it is a sheet-like optical structure. Preferably, the thickness of the optical waveguide 3 can vary between 1 mm and 4 mm, and the specific thickness is adjusted according to the sunlight irradiation area.

[0047] The substrate of the optical waveguide 3 is a transparent material, and may be made of PC or PMMA.

[0048] The optical waveguide 3 may be provided with luminescent dopants, such as styrene and phosphorescent dopants.

[0049] Preferably, the optical waveguide 3 may be doped with specific quantum dots (also called light absorbing nanoparticles, or colloidal quantum dots) which absorb a certain part of the solar flux and re-emit this energy as photoluminescence of a longer wavelength.

[0050] The size of quantum dots can be adjusted to absorb different wavelengths of the spectrum, such as absorbing infrared light, or absorbing visible light. In addition, multi-layer optical waveguides 3 can also be used to absorb more spectra, thereby releasing heat electrons to generate electromotive force.

[0051] Preferably, at least one layer of fluorescent ink is printed on the surface of the optical waveguide 3 .

[0052] Fluorescent ink can absorb radiation of a specific wavelength or band and emit radiation of another wavelength or band. Specifically, after printing fluorescent ink on the optical waveguide 3, it can absorb sunlight, and then the photovoltaic cell assembly 4 can absorb wavelength fluorescence. Fluorescence that meets certain conditions can propagate a longer distance in the optical waveguide 3.

[0053] Specific reference Figure 4 According to one embodiment of the present invention, the optical waveguide 3 is a parallelogram. Optionally, photovoltaic cell components 4 are arranged on four sides of the optical waveguide 3 to form a coupling optical path.

[0054] The energy conversion device further comprises a mirror reflector 5, which is metallized and arranged on at least one side surface of the optical waveguide 3. The material of the mirror reflector 5 is preferably aluminum, silver or indium.

[0055] Preferably, the mirror reflector 5 is arranged on the side of the optical waveguide 3 relative to the photovoltaic cell assembly 4, for example, the mirror reflector 5 is arranged on two adjacent sides of the optical waveguide 3, and the photovoltaic cell assembly 4 is arranged on the other two opposite adjacent sides of the optical waveguide 3, or the mirror reflector 5 is arranged on one side of the optical waveguide 3, and the photovoltaic cell assembly 4 is arranged on the other side of the optical waveguide 3 opposite thereto (i.e. Figure 4 Alternatively, a mirror reflector 5 may be provided on one to three of the four sides of the optical waveguide 3, and then the photovoltaic cell assembly 4 may be provided on the remaining sides.

[0056] In addition, a selective reflection layer may be provided on the surface of the optical waveguide 3, wherein a mirror reflector 5 (eg Figure 4 The bottom surface of the optical waveguide 3), the selective emission layer is a photonic crystal or an optical high-reflective coating.

[0057] The following will specifically describe the process by which the energy conversion device absorbs sunlight and converts solar energy into electrical energy.

[0058] When sunlight shines on the surface of the optical waveguide 3 from above the energy conversion device, the fluorescent ink on the optical waveguide 3 can absorb the sunlight and emit fluorescence, and the generated fluorescence will be evenly distributed in all directions.

[0059] The fluorescence will undergo a series of emission and refraction at the interface between the transparent substrate and the fluorescent ink of the optical waveguide 3, and reach the upper and lower surfaces of the optical waveguide 3. When it is within the total reflection angle determined by the refractive index of the transparent substrate and the refractive index of the fluorescent ink, the fluorescence will be totally reflected at the upper and lower surfaces of the optical waveguide 3 and refracted back into the optical waveguide 3. Therefore, the fluorescence is transmitted to the side of the optical waveguide 3 through successive reflection and refraction in the optical waveguide 3 until it reaches the four sides of the optical waveguide 3 and then couples into the photovoltaic cell assembly 4 to be converted into electrical energy output.

[0060] The energy conversion device can concentrate the sunlight collected by the large-area optical waveguide 3 onto the photovoltaic cell assembly 4 installed on the small-area side, so as to achieve a large equivalent focusing effect by using the photovoltaic cell assembly 4 of the side size to receive the light of the surface size. Since the cost of the optical waveguide 3 is much lower than that of the photovoltaic cell assembly 4, reducing the use of the photovoltaic cell assembly 4 means reducing the cost of energy conversion.

[0061] Therefore, the energy conversion device in the interior decoration assembly of the present invention can effectively convert the solar energy brought by the sunlight, and because there is no need to arrange a large area to install the photovoltaic cell assembly 4, it has a higher cost-effectiveness.

[0062] Optionally, the optical waveguide 3 can be any polygon according to specific requirements, such as a triangle, a wedge, etc. The above effect can also be achieved by arranging the photovoltaic cell assembly 4 on the smaller side of the optical waveguide 3 .

[0063] In addition, the interior trim assembly according to the present invention is well integrated in the vehicle interior and is easy to assemble without requiring large installation costs.

[0064] The above embodiments are only examples and do not limit the scope of the present invention. Based on this, those skilled in the art can foresee other implementations that can achieve the same function within the scope of the claims of the present invention.

[0065] Those skilled in the art will be aware of various embodiments and various variations and improvements. In particular, it should be clear that, except for obvious contradictions or incompatibilities, the above-mentioned features, variations and / or specific embodiments of the present invention can be combined with each other. All of these embodiments and variations and improvements belong to the protection scope of the present invention.

Claims

1. An interior trim assembly, characterized in that: The interior decoration assembly comprises a decorative part (1) having an upper surface and a lower surface, the decorative part (1) comprising graphene, and the lower surface of the decorative part (1) is integrated with a semiconductor cooling plate (2) for absorbing heat from the lower surface of the decorative part (1). When the temperature of the upper surface of the decorative part (1) increases, the temperature difference between the upper and lower surfaces of the decorative part (1) can enable the graphene to generate electrical energy. After the electrical energy between the upper and lower surfaces of the decorative part (1) is provided to the semiconductor cooling plate (2), the semiconductor cooling plate (2) can reduce the temperature of the decorative part (1).

2. The interior trim assembly according to claim 1, characterized in that: The raw materials of the decorative element (1) are pre-mixed with graphene before processing.

3. The interior trim assembly according to claim 1, characterized in that: The upper and lower surfaces of the decorative element (1) are respectively coated with at least one layer of graphene film (11).

4. The interior trim assembly according to claim 1, characterized in that: The semiconductor cooling plate (2) comprises a P-type semiconductor and an N-type semiconductor, wherein the P-type semiconductor is made of a Bi2Te3-Sb2Te3 material, and the N-type semiconductor is made of a Bi2Te3-Bi2Se3 material.

5. An interior trim assembly according to any one of the preceding claims, characterised in that The interior decoration assembly comprises an energy conversion device located on the upper surface of the decorative element (1), the energy conversion device comprising a photovoltaic cell assembly (4) and an optical waveguide (3), wherein the photovoltaic cell assembly (4) is mounted on at least one side of the optical waveguide (3).

6. The interior trim assembly according to claim 5, characterized in that The optical waveguide (3) is doped with quantum dots to absorb light of different wavelengths.

7. The interior trim assembly according to claim 5, characterized in that: At least one layer of fluorescent ink is printed on the surface of the optical waveguide (3).

8. The interior trim assembly according to claim 5, characterized in that: The energy conversion device further comprises a specular reflector (5) which is arranged in a metallized manner on at least one side surface of the optical waveguide (3).

9. The interior trim assembly according to claim 8, characterized in that The specular reflector (5) is arranged on the side of the optical waveguide (3) opposite to the photovoltaic cell assembly (4).

10. The interior trim assembly according to claim 9, characterized in that The material of the mirror reflector (5) is aluminum, silver or indium.

Images