Automobile intelligent sunscreen glass and control system thereof

Abstract

The invention discloses automobile intelligent sunscreen glass and a control system thereof, and relates to the technical field of sunscreen glass, the automobile intelligent sunscreen glass comprises a first glass substrate, a second glass substrate and a thermoplastic membrane arranged between the first glass substrate and the second glass substrate; a multi-layer functional film layer is arranged between the first glass substrate and the second glass substrate and comprises one or a combination of a heat insulation heating layer, a protective layer, a photoelectric conversion layer and an electrochromic dimming layer; a tourmaline functional film layer is arranged on the outer layer of the second glass substrate; the functional film layers have good compatibility and stability, function maximization can be achieved, and the riding experience is remarkably improved; the heat insulation heating layer and the electro-dimming layer are combined to form a composite membrane, and the composite membrane is connected with vehicle-mounted equipment through copper foil, wires and the like, so that intelligent control over heating and lighting is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of skylight glass, and in particular to an intelligent skylight glass for an automobile and a control system thereof. Background Art

[0002] Photovoltaic glass can directly convert solar energy into electrical energy, thereby effectively increasing the vehicle's range and reducing dependence on traditional charging piles. Using this environmentally friendly electricity, the vehicle's air conditioning and ventilation systems can obtain a more stable and economical power supply, improve the battery's service life and overall efficiency, and provide passengers with a more comfortable riding environment.

[0003] However, the application of photovoltaic glass in the automotive field also faces some challenges. First, the area of ​​the car sunroof is relatively limited, so the number and power of photovoltaic modules that can be installed are also limited accordingly. This, to a certain extent, limits the role of photovoltaic glass in improving vehicle range and power supply. Secondly, the automotive field lacks an effective power management system for photovoltaic power generation systems, making it difficult for photovoltaic glass to meet the functional requirements of different types of vehicles such as fuel vehicles, electric vehicles and hybrid vehicles.

[0004] In addition, when using the car sunroof glass, sunlight entering through the sunroof can cause a series of problems. Strong sunlight can cause the temperature inside the car to rise rapidly, increasing the load on the air conditioning system and thus increasing energy consumption. In addition, direct ultraviolet rays can damage interior accessories and electronic devices, reducing their service life, and may produce harmful substances, deteriorating the interior environment. Excessive light and heat entering the car can also make passengers feel uncomfortable, especially in hot summer weather, when the interior environment can become hot and unbearable, seriously affecting the driving and riding experience.

[0005] In order to solve these problems, the following related technologies are disclosed in the prior art:

[0006] The patent document with publication number CN111916516B provides a photovoltaic dimming composite glass and its control system, which is composed of a first light-transmitting plate, a second light-transmitting plate, and a first and a second adhesive layer located therebetween. A dimming film is arranged between the two adhesive layers, and is provided with a first lead extending from the edge of the glass. The system also includes a battery pack composed of a plurality of individual battery cells connected in series, which maintains a spacing of at least 5 mm from the edge of the dimming film and is connected to the edge through a second lead. The present invention takes into account both lighting and photovoltaic power generation, and photovoltaic power generation is directly supplied to the dimming film, and has a simple structure and is easy to implement.

[0007] The patent document with publication number CN214799405U provides a new type of photovoltaic panoramic sunroof, which is mainly composed of the following parts: a first light-transmitting layer, a first adhesive layer, a photovoltaic chip, a second adhesive layer, a second reflective layer, a second light-transmitting plate, and an ink printed coating on which a first light-transmitting plate is arranged; the photovoltaic chip is arranged at the edge of the panoramic sunroof and is divided into a first area with a photovoltaic chip and a second area without a photovoltaic chip, the first reflective layer covers the second area, the second reflective layer covers the first area and the second area, the second adhesive layer includes a transparent adhesive layer covering the first area and a dark adhesive layer covering the second area, the ink printed area covers the first area and is slightly larger than the first area. The utility model takes into account both lighting and photovoltaic power generation, and while locally arranging photovoltaic chips, a reflective layer is used to increase the power generation of photovoltaic power generation.

[0008] The patent document with publication number CN1091300808B discloses a solar-powered automobile sunroof auxiliary cruising system and its charging control method. The system includes electrochromic sunroof glass, a flexible solar cell group, a heat insulation board, a sunroof baffle, and two contact points arranged at the edge of the sunroof; the flexible solar cell group is arranged on the sunroof baffle, and as the sunroof baffle is folded, stored, and opened, when the sunroof baffle is completely closed, the circuit is turned on, and the electrochromic sunroof glass becomes transparent; when the sunroof baffle is not completely closed, the circuit is turned off, and the sunroof glass becomes black.

[0009] However, there are still deficiencies in the above-mentioned prior arts. For example, although the technical solution in the patent document with publication number CN111916516B integrates photovoltaic modules and dimming film layers in the effective area at the same time, how to strike a balance between the two is still a major problem, and the protection against ultraviolet rays in the transparent state is insufficient, which may damage the equipment in the vehicle; and the technical solution in the patent document with publication number CN214799405U only arranges photovoltaic modules on the edges, which further limits its power generation potential, and the dark adhesive layer is prone to aging, making it difficult to continuously provide a satisfactory user experience, and the function is relatively single; the technical solution in the patent document with publication number CN1091300808B maximizes the use area of ​​the sunroof through a flexible solar cell group, but because the sunroof baffle is fixed together with the battery module, it is still impossible to simultaneously ensure free lighting and continuous power generation, and the lighting capacity, sense of technology and wide field of view of the skylight glass are not fully considered. Summary of the invention

[0010] The purpose of the present invention is to provide an automobile intelligent skylight glass and a control system thereof to solve the following technical problems:

[0011] How to improve the lighting quality and functional diversity of automotive smart skylight glass.

[0012] The purpose of the present invention can be achieved through the following technical solutions:

[0013] In the first aspect, the present invention discloses an intelligent skylight glass for an automobile, comprising a first glass substrate, a second glass substrate and a thermoplastic film arranged therebetween; a multilayer functional film layer is arranged between the first glass substrate and the second glass substrate, and the multilayer functional film layer includes a combination of one or more layers of a heat insulation heating layer, a protective layer, a photoelectric conversion layer and an electroluminescent dimming layer.

[0014] In a further embodiment of the present invention: the outer layer of the second glass substrate is provided with a tourmaline functional film layer.

[0015] Furthermore, the method for manufacturing the tourmaline functional film layer comprises the following steps:

[0016] S1: mixing and grinding graphene, titanium dioxide and tourmaline powder in a mass ratio of (25-40): (4-15): (59-70);

[0017] S2: mixing the ground mixture with the high temperature curing conductive filler and stirring thoroughly;

[0018] S3: The fully stirred mixture is evenly coated on the surface of the second glass substrate, and after drying at 80°C-140°C, it is transferred to a high-temperature curing furnace and cured at 150°C-250°C for 5min-15min to improve the crystallinity and stability of the tourmaline functional film layer.

[0019] Further, in step S2, the high temperature curing conductive filler includes the following percentages of raw materials: basic resin 45%-70%, conductive filler 25%-35%, curing agent 1%-10%, plasticizer 0.7%-2.1%, additive 0.1%-1%.

[0020] Preferably, the basic resin is bisphenol A epoxy resin EP400 or DER-332; the conductive filler is composed of one or more of silver powder, copper powder or carbon nanotubes, and its particle size range is 0.1um-10um; the curing agent is anhydride curing agent HHPA hexahydrophthalic anhydride; the plasticizer is dibutyl phthalate DOP; the additive is a silane coupling agent; the optimized formula of the high-temperature curing conductive filler ensures that the tourmaline functional film layer has stable low conductivity, stability and mechanical properties.

[0021] First, under the action of the external electric field, the tourmaline functional film layer can accelerate the release of negative ions. These negative ions can absorb and remove organic pollutants such as odor and formaldehyde in the car, thereby effectively purifying the air. At the same time, the tourmaline functional film layer is full of electric charge on the outside, which can effectively absorb particulate matter and some harmful gas molecules in the air, further improving the air quality in the car. Secondly, the composite material formed by mixing graphene and titanium dioxide in a certain proportion reduces the band gap of tourmaline through the action of graphene, reducing the energy required to release negative oxygen ions. At the same time, this composite material increases the specific surface area and gives excellent photocatalytic performance. After repeated cycles, its catalytic activity can remain unchanged. Finally, because the tourmaline functional film layer has a certain electrical conductivity, it will generate heat and electric field changes under the action of an applied voltage. These changes cause the crystal bonds in the tourmaline lattice to twist and electrons to transfer, resulting in one end of the tourmaline being positively charged and the other end being negatively charged, thereby inducing air ionization. This ionization process converts neighboring air molecules into negative air ions, enhancing the ability of tourmaline to produce negative ions, thereby improving air quality.

[0022] In a further embodiment of the present invention: the first glass substrate and the second glass substrate are both ultra-white soda-lime glass, ultra-white sodium potassium glass or ultra-white lead-free glass, or a combination of two thereof; the transmittance of these glass substrates in the range of 320-1100nm (photovoltaic response wavelength of solar cells) can reach more than 93%, and they can fully absorb solar energy and convert it into electrical energy; at the same time, they also have excellent temperature difference resistance, and can effectively prevent the breakage caused by internal stress difference due to temperature change even in extremely low temperature areas. This feature enables the automotive intelligent skylight glass of the present invention to turn on the heating function under various climatic conditions to avoid internal stress accumulation and breakage.

[0023] In a further embodiment of the present invention, the thermoplastic membrane is doped with a high molecular polymer containing a stabilizing component and a filtering component.

[0024] In a further embodiment of the present invention, the thermoplastic film is an EVA film mainly made of ethylene-vinyl acetate copolymer, or a PVB film mainly made of polyvinyl butyral, or a modified thermoplastic film doped with 0.1%-0.5% by mass of 4-benzoyloxy-2,2,6,6-tetramethylpiperidine and 0.1%-0.2% by mass of hexamethylphosphoric triamide. These materials have a strong shielding effect on ultraviolet rays of 10nm-400nm.

[0025] Furthermore, the thermoplastic film and the electrochromic layer are combined to form a composite film layer, the composite film layer includes two thermoplastic film layers and an electrochromic layer sandwiched between the two thermoplastic film layers, the electrochromic layer is an LC dimming film, and the LC dimming film includes a liquid crystal material layer and electrode layers arranged on both sides of the liquid crystal material layer.

[0026] Furthermore, in the liquid crystal in the liquid crystal material layer, the electrode layer is a PET-I TO composite film.

[0027] In a further embodiment of the present invention: the thermal insulation and heating layer includes at least two layers of low-resistance transparent conductive film, and the low-resistance transparent conductive film is doped with one or more materials selected from the group consisting of indium oxide, silver oxide, tin oxide, cadmium oxide, cuprous oxide, zinc oxide, gold, copper, copper sulfide, and copper iodide; these materials ensure that the thermal insulation and heating layer has good conductivity and light transmittance.

[0028] Furthermore, the thermal insulation and heating layer also includes at least one silver-based composite layer, which is arranged between the low-resistance transparent conductive films; the silver-based composite layer has extremely high conductivity and reflectivity, and plays a key role in enhancing the thermal insulation effect and heating capacity.

[0029] Furthermore, the thermal insulation and heating layer also includes a dielectric layer, which is arranged on the outside of one of the outermost low-resistance transparent conductive films; the material of the dielectric layer includes titanium dioxide, silicon dioxide, and silicon nitride; these materials not only have good adhesion, but also have better insulation and stability, which can increase the adhesion between the low-resistance transparent conductive film and the surface of the glass substrate or other film layers, and prevent the low-resistance transparent conductive film from falling off during the subsequent hot bending process.

[0030] Furthermore, the heat-insulating and heating layer includes a silver-based composite layer, whose square resistance is 2.2-3.8Ω / □, thermal power is 200W / M2-270W / M2, and shading coefficient is 0.46-0.55.

[0031] Furthermore, the heat-insulating and heating layer includes two silver-based composite layers, the square resistance of which is 1.1-1.8Ω / □, the thermal power is 330W / M2-420W / M2, and the shading coefficient is 0.35-0.39.

[0032] Furthermore, the heat-insulating and heating layer includes three silver-based composite layers, the square resistance of which is 0.6-0.9Ω / □, the thermal power is 450W / M2-620W / M2, and the shading coefficient is 0.29-0.35.

[0033] As the number of silver-based composite layers increases, the square resistance of this functional film layer decreases and its reflection ability for mid- and far-infrared rays increases, so that the thermal insulation and heating layer achieves excellent thermal insulation performance and strong heating capacity while maintaining high light transmittance.

[0034] In a further embodiment of the present invention: a plurality of protective layers are provided and are respectively provided between adjacent functional film layers, and the material of the protective layers includes a combination of one or more of silicon dioxide and silicon nitride.

[0035] The material of the protective layer is insulating, has good thermal stability, and has an extremely low expansion coefficient. It also has good connectivity with other functional film layer materials, and can separate and protect the thermal insulation and heating layer, the photoelectric conversion layer, and the electroluminescent layer disposed on the same surface of the glass substrate or the thermal insulation and heating layer, the photoelectric conversion layer, and the electroluminescent layer disposed on the surfaces of different glass substrates, thereby ensuring the independence and stability of the two adjacent functional film layers and avoiding mutual interference.

[0036] In a further embodiment of the present invention, the photoelectric conversion layer is a copper indium gallium tin solar cell assembly, and the copper indium gallium tin solar cell assembly includes a metal back electrode, a light absorption layer, a transition layer, a window layer and an anti-reflection film stacked in sequence.

[0037] Furthermore, the metal back electrode is molybdenum, which has good conductivity and thermal stability; the light absorption layer is a doped layer of copper indium diselenide and gallium, which is used to absorb sunlight and convert it into electrical energy; the transition layer is a cadmium sulfide layer, which facilitates the transfer and collection of electrons; the window layer is a doped layer of zinc oxide and aluminum, which can increase the transmittance of sunlight and protect solar cell modules; the anti-reflection film is a magnesium fluoride layer, which can reduce the reflection of light and improve the utilization rate of light energy.

[0038] In the second aspect, the present invention also discloses a control system for the intelligent automobile skylight glass as described above, including multiple intelligent control modules, the multiple intelligent control modules include an intelligent heating module, a photoelectric conversion module, an intelligent dimming module, an intelligent air purification module and a comprehensive control module; the control system automatically adjusts the state of the skylight glass according to external environmental conditions.

[0039] In a further embodiment of the present invention: the intelligent heating module integrates a heat-insulating heating layer, a temperature sensor, a pressure sensor, a control circuit and an on-board PC, and through mutual cooperation, the heating intensity can be automatically adjusted according to changes in the ambient temperature in the vehicle and the roof pressure.

[0040] In a further embodiment of the present invention: the photoelectric conversion module integrates a photoelectric conversion layer, a control circuit, an inverter, a vehicle-mounted battery and a vehicle-mounted PC. The photoelectric conversion layer converts light energy into electrical energy, and is connected to the control circuit through the edge busbar and the conductive foil extending therefrom to realize the storage and utilization of electrical energy.

[0041] In a further embodiment of the present invention, the intelligent dimming module integrates an electro-dimming layer, a control circuit, a light sensor, a temperature sensor and an onboard PC, and intelligently adjusts the electro-dimming layer according to external light and temperature conditions.

[0042] In a further embodiment of the present invention: the intelligent air purification module is integrated with a tourmaline functional film layer, a control circuit, an on-board PC, and an air detection module.

[0043] In a further solution of the present invention: the integrated control module is responsible for coordinating the work of each intelligent control module.

[0044] Beneficial effects of the present invention:

[0045] (1) In the automotive intelligent skylight glass of the present invention, a plurality of functional film layers are arranged between the first glass substrate and the second glass substrate, including a heat insulation and heating layer, a protective layer, a photoelectric conversion layer, and an electroluminescent dimming layer. These film layers work together to achieve multiple functions such as intelligent dimming, sound insulation and heat insulation, photovoltaic power generation, ultraviolet ray filtering, and air conditioning in the vehicle. The functional film layers have good compatibility and stability, which can maximize the functions and significantly improve the riding experience.

[0046] (2) In the automotive intelligent skylight glass of the present invention, the photoelectric conversion layer is based on a copper indium gallium selenide photovoltaic module, which has a power generation efficiency of 20%-25%. In addition, this photovoltaic module currently has mature technology, a high market share, and a moderate cost. The photovoltaic module is integrated into the automotive skylight through the sputtering deposition method. Compared with the traditional skylight and battery cell design, the space utilization rate is significantly improved. The environmentally friendly electricity generated by the photovoltaic module is reasonably allocated to improve the energy utilization efficiency.

[0047] (3) In the automotive intelligent skylight glass of the present invention, the heat-insulating heating layer and the electroluminescent layer are combined to form a composite membrane, wherein the heat-insulating heating functional layer constructed with a multi-layer low-resistance conductive film and a silver-based film layer not only heats and insulates, but also realizes uniform dimming through the electroluminescent layer, and can filter out ultraviolet rays to protect the interior environment of the vehicle; the composite membrane is connected to the vehicle-mounted equipment through copper foil, wires, etc. to realize intelligent control of heating power and lighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The present invention will be further described below in conjunction with the accompanying drawings.

[0049] Figure 1 is a schematic diagram of the structure of the intelligent skylight glass for automobiles in Example 1 of the present invention;

[0050] Figure 2 is a schematic diagram of the structure of the intelligent skylight glass for automobiles in Example 2 of the present invention;

[0051] Figure 3 It is a structural schematic diagram of the automobile intelligent skylight glass control system in Example 3 of the present invention.

[0052] In the figure: 1. first glass substrate; 2. second glass substrate; 3. thermoplastic film; 4. heat insulation and heating layer; 5. protective layer; 6. photoelectric conversion layer; 7. electroluminescent layer; 8. tourmaline functional film layer. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] Example 1

[0055] See also Figure 1 The present invention discloses an intelligent automotive skylight glass, comprising a first glass substrate 1, a second glass substrate 2 and a thermoplastic film 3 arranged therebetween; a multi-layer functional film layer is arranged between the first glass substrate 1 and the second glass substrate 2, and the multi-layer functional film layer comprises a heat insulation and heating layer 4, a protective layer 5, a photoelectric conversion layer 6 and an electroluminescent layer 7, wherein the protective layer 5 has multiple layers, and each of the multiple layers is arranged between two adjacent functional film layers.

[0056] In this embodiment, the structure of the automobile intelligent skylight glass specifically includes a second glass substrate 2, a thermoplastic film 3, an electroluminescent layer 7, a thermoplastic film 3, a protective layer 5, a thermal insulation heating layer 4, a protective layer 5, a photoelectric conversion layer 6 and a first glass substrate 1, which are arranged in sequence from bottom to top; it should be noted that the arrangement of the functional film layer is not limited to the arrangement method in this embodiment. In other embodiments, the functional film layer can be deposited individually or in combination on the inner glass surface of the first glass substrate 1 or the second glass substrate 2 as needed to achieve diversified functions.

[0057] Next, each film layer is introduced as follows.

[0058] The first glass substrate 1 and the second glass substrate 2:

[0059] In the present embodiment, the first glass substrate 1 and the second glass substrate 2 are both made of ultra-white soda-lime glass. It should be noted that the materials of the first glass substrate 1 and the second glass substrate 2 are not limited to the ultra-white soda-lime glass in the present embodiment. In other embodiments, the first glass substrate 1 and the second glass substrate 2 may also be made of one or a combination of ultra-white soda-lime glass, ultra-white potassium sodium glass or ultra-white lead-free glass.

[0060] Thermoplastic Diaphragm 3:

[0061] The thermoplastic film 3 is doped with high molecular polymer or liquid crystal particles containing stabilizing components and filtering components. For example, in this embodiment, the thermoplastic film 3 and the electrochromic layer 7 are combined to form a composite film layer, and the composite film layer includes two layers of thermoplastic film 3 and an electrochromic layer 7 sandwiched between the two thermoplastic film layers. The electrochromic layer 7 is an LC dimming film, and the LC dimming film includes a liquid crystal material layer and electrode layers arranged on both sides of the liquid crystal material layer, wherein a certain amount of dye molecules are added to the liquid crystal material layer. Under the regulation of the electric field, the dye molecules change with the orientation of the liquid crystal, and the arrangement mode directly affects the degree of light passing through. By gradually adjusting the electric field strength, the continuous adjustment of the light transmittance is achieved; the electrode layer uses a PET-I TO composite film.

[0062] It should be noted that the material and structure of the thermoplastic film 3 are not limited to those in the present embodiment. In other embodiments, the thermoplastic film 3 may also be an EVA film with ethylene-vinyl acetate copolymer as the main material, or a PVB film with polyvinyl butyral as the main material, or a modified thermoplastic film doped with 0.1%-0.5% by mass of 4-benzoyloxy-2,2,6,6-tetramethylpiperidine and 0.1%-0.2% by mass of hexamethylphosphoric triamide. These films have a strong isolation effect on ultraviolet rays of 10nm-400nm.

[0063] Thermal insulation and heating layer 4:

[0064] In this embodiment, the thermal insulation and heating layer 4 includes two layers of low-resistance transparent conductive films, a silver-based composite layer arranged between the two layers of low-resistance transparent conductive films, and a dielectric layer arranged on the outside of one of the layers of low-resistance transparent conductive films. Its square resistance is 2.2-3.8Ω / □, the thermal power is 200W / M2-270W / M2, and the shading coefficient is 0.46-0.55.

[0065] It should be noted that the structure of the heat insulation and heating layer 4 is not limited to the structure in the present embodiment. In other embodiments, the low-resistance transparent conductive film can also be set to more than two layers, and the silver-based composite layer can also be set to more than one layer, such as two layers, three layers... The silver-based composite layer has extremely high conductivity and reflectivity, which plays a key role in enhancing the heat insulation effect and heating capacity. When the silver-based composite layer is set to two layers, the square resistance of the heat insulation and heating layer 4 is 1.1-1.8Ω / □, and the thermal power is 330W / M2- 420W / M2, and the shading coefficient is 0.35-0.39; when the silver-based composite layer is set to three layers, the square resistance of the thermal insulation and heating layer 4 is 0.6-0.9Ω / □, the thermal power is 450W / M2-620W / M2, and the shading coefficient is 0.29-0.35. As the number of silver-based composite layers increases, the square resistance of this functional film layer decreases, and the reflection ability of mid- and far-infrared rays is enhanced, so that the thermal insulation and heating layer 4 can achieve excellent thermal insulation performance and strong heating capacity while maintaining high light transmittance.

[0066] In this embodiment, the low-resistance transparent conductive film is a multi-layer structure formed by doping one or two materials selected from indium oxide, silver oxide and tin oxide; it should be noted that the material of the low-resistance transparent conductive film is not limited to the material in this embodiment. In other embodiments, the thermal insulation and heating layer 4 can also be formed by doping one or more materials selected from indium oxide, silver oxide, tin oxide, cadmium oxide, cuprous oxide, zinc oxide, gold, copper, copper sulfide and copper iodide; these materials ensure that the thermal insulation and heating layer has good conductivity and light transmittance.

[0067] In this embodiment, the material of the dielectric layer is titanium dioxide; it should be noted that the material of the dielectric layer is not limited to the material in this embodiment, and in other embodiments, the dielectric layer may also be silicon dioxide; these materials not only have good adhesion, but also have certain insulation and stability, which can increase the adhesion between the low-resistance transparent conductive film and the surface of the glass substrate or other film layers, and prevent the low-resistance transparent conductive film from falling off during the subsequent hot bending process.

[0068] Protective layer 5:

[0069] In this embodiment, the material of the protective layer 5 is silicon dioxide; it should be noted that the material of the protective layer 5 is not limited to the material in this embodiment, and in other embodiments, the protective layer 5 may also be one of silicon dioxide and silicon nitride.

[0070] The material of the protective layer is insulating, has good thermal stability, has an extremely low expansion coefficient, and has good connectivity with other functional film layer materials. It can separate and protect the thermal insulation and heating layer 4, the photoelectric conversion layer 6, and the electroluminescent layer 7 arranged on the same surface of the glass substrate or the thermal insulation and heating layer 4, the photoelectric conversion layer 6, and the electroluminescent layer 7 respectively arranged on the surfaces of different glass substrates, thereby ensuring the independence and stability of the two adjacent functional film layers and avoiding mutual interference.

[0071] Photoelectric conversion layer 6:

[0072] The photoelectric conversion layer 6 is a copper indium gallium tin solar cell assembly, which includes a metal back electrode, a light absorption layer, a transition layer, a window layer and an anti-reflection film stacked in sequence.

[0073] Among them, the metal back electrode is molybdenum, which has good conductivity and thermal stability; the light absorption layer is a doped layer of copper indium diselenide and gallium; the transition layer is a cadmium sulfide layer; the window layer is a doped layer of zinc oxide and aluminum; and the anti-reflection film is a magnesium fluoride layer.

[0074] Example 2

[0075] See also Figure 2 This embodiment is further improved on the basis of the embodiment 1, specifically: a tourmaline functional film layer 8 is added to the outer layer of the second glass substrate 2.

[0076] The method for manufacturing the tourmaline functional film layer 8 comprises the following steps:

[0077] S1: Graphene, titanium dioxide and tourmaline powder are mixed and ground in a mass ratio of 32:9:59;

[0078] S2: mixing the ground mixture with the high temperature curing conductive filler and stirring thoroughly;

[0079] S3: The fully stirred mixture is evenly coated on the surface of the second glass substrate, and after drying at 80°C-140°C, it is transferred to a high-temperature curing furnace and cured at 150°C-250°C for 5min-15min. On the one hand, a microporous structure is formed on the surface to increase the surface area, and on the other hand, the stability of the tourmaline functional film layer is improved.

[0080] In step S2, the high temperature curing conductive filler includes the following raw materials in percentages: 55% basic resin, 35% conductive filler, 8% curing agent, 1.5% plasticizer, and 0.5% additive.

[0081] Among them, the basic resin is bisphenol A epoxy resin EP400 or DER-332; the conductive filler is composed of one or more of silver powder, copper powder or nano carbon tubes, and its particle size range is 0.1um-10um; the curing agent is anhydride curing agent HHPA hexahydrophthalic anhydride; the plasticizer is dibutyl phthalate DOP; the additive is a silane coupling agent; the optimized formula of the high-temperature curing conductive filler ensures that the tourmaline functional film layer has stable low conductivity, stability and mechanical properties.

[0082] The working principle of the tourmaline functional film layer 8 is:

[0083] First, under the action of the external electric field, the tourmaline functional film layer 8 can accelerate the release of negative ions, and these negative ions can absorb and remove organic pollutants such as odor and formaldehyde in the car, thereby effectively purifying the air; at the same time, the tourmaline functional film layer 8 is full of electric charge on the outside, which can effectively absorb particulate matter and some harmful gas molecules in the air, further improving the air quality in the car; secondly, the composite material formed by mixing graphene and titanium dioxide in a certain proportion reduces the band gap of tourmaline through the action of graphene, thereby reducing the energy required to release negative oxygen ions. At the same time, this composite material increases the specific surface area, imparts excellent photocatalytic performance, and its catalytic activity can remain unchanged after repeated cycles; finally, because the tourmaline functional film layer 8 has a certain electrical conductivity, it will generate heat and electric field changes under the action of an applied voltage. These changes cause the crystal bonds in the tourmaline lattice to twist and electrons to transfer, resulting in one end of the tourmaline being positively charged and the other end being negatively charged, thereby inducing air ionization. This ionization process converts neighboring air molecules into negative air ions, enhancing the ability of tourmaline to generate negative ions, thereby improving air quality.

[0084] Example 3

[0085] See also Figure 3 This embodiment discloses a control system for an automobile intelligent skylight glass based on embodiment 1 or embodiment 2, including multiple intelligent control modules, the multiple intelligent control modules include an intelligent heating module, a photoelectric conversion module, an intelligent dimming module, an air intelligent purification module, and a comprehensive control module; the control system automatically adjusts the state of the skylight glass according to external environmental conditions.

[0086] Next, the modules in the control module are introduced as follows.

[0087] Intelligent heating module:

[0088] The intelligent heating module integrates a heat-insulating heating layer 4, a temperature sensor, a pressure sensor, a control circuit and an onboard PC. Through mutual cooperation, the heating intensity can be automatically adjusted according to changes in the ambient temperature in the vehicle and the roof pressure.

[0089] Specifically, the on-board PC analyzes the data collected by the pressure sensor and the temperature sensor, and detects abnormal pressure (excessive pressure) caused by snow accumulation. The on-board PC will immediately start the thermal insulation heating layer 4 through the control circuit to quickly melt the snow to prevent excessive snow from damaging the vehicle body. The data analysis can also be transmitted to the user's mobile phone to ask whether it is necessary to turn on the heating function of the front windshield at the same time, so as to melt the snow in advance and save travel time.

[0090] Photoelectric conversion module:

[0091] The photoelectric conversion module integrates a photoelectric conversion layer 6, a control circuit, an inverter, an on-board battery and an on-board PC. The photoelectric conversion layer 6 converts light energy into electrical energy and is connected to the control circuit through the edge busbar and the conductive foil extending therefrom to realize the storage and utilization of electrical energy.

[0092] Specifically, the core of the photoelectric conversion module is the copper indium gallium selenide (CI GS) photoelectric conversion layer 6, which can efficiently convert solar energy into direct current; the equipped inverter is responsible for converting direct current into alternating current to meet the power supply needs of on-board equipment; the on-board PC works closely with the control circuit to intelligently distribute electrical energy, giving priority to the use of power generated by photovoltaic power generation, reducing dependence on on-board batteries and thereby extending the battery life.

[0093] Intelligent dimming module:

[0094] The intelligent dimming module integrates the electro-dimming layer 7 (LC dimming film), a control circuit, a light sensor, a temperature sensor and an on-board PC, and intelligently adjusts the LC dimming film according to external light and temperature conditions.

[0095] Specifically, the light sensor monitors the external light intensity in real time, while the temperature sensor monitors the temperature inside the car and sends these data to the on-board PC in real time; the on-board PC uses the control circuit to accurately adjust the voltage and duration applied to both ends of the liquid crystal material layer in the LC dimming film based on the received data, thereby controlling the arrangement direction of the liquid crystal and then changing the transmittance of the liquid crystal material layer; according to the changes in the external light intensity and the temperature inside the car, the on-board PC dynamically adjusts the transparency of the glass to ensure that the car has a suitable light and temperature environment.

[0096] Intelligent air purification module:

[0097] The intelligent air purification module integrates a tourmaline functional film layer 8, a control circuit, an on-board PC, and an air detection module. The tourmaline functional film layer 8 can effectively absorb fine particles in the air inside the car and quickly generate negative ions when the surface is covered with a weak charge, thereby improving the air quality inside the car.

[0098] Specifically, the air quality detection module monitors the air quality in the car in real time, focusing on the concentration of particulate matter and harmful gases in the air. The on-board PC analyzes and judges based on the real-time data provided by the air quality detection module, and activates the adsorption and negative ion release functions of the tourmaline functional film layer 8 through the control circuit. The tourmaline functional film layer 8 can not only absorb fine particles in the air in the car, but also accelerate the generation of negative ions under the action of the electric field, thereby effectively improving the air quality in the car.

[0099] Integrated control module:

[0100] As the core of the entire control system, the integrated control module is responsible for coordinating the work of various intelligent control modules to ensure that they can operate in coordination and provide the best user experience.

[0101] In summary, in the control system of the automobile intelligent skylight glass of the present invention, information interaction and collaborative work are achieved between the modules through efficient circuit connections, thereby providing users with a safe, comfortable and intelligent driving environment.

[0102] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0103] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0104] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An intelligent automotive skylight glass, characterized in that: The invention comprises a first glass substrate (1), a second glass substrate (2) and a thermoplastic film (3) arranged between the two; a multi-layer functional film layer is arranged between the first glass substrate (1) and the second glass substrate (2), and the multi-layer functional film layer comprises a combination of one or more layers of a heat-insulating heating layer (4), a protective layer (5), a photoelectric conversion layer (6) and an electroluminescent dimming layer (7).

2. The intelligent automotive skylight glass according to claim 1, characterized in that: The outer layer of the second glass substrate (2) is provided with a tourmaline functional film layer (8).

3. The intelligent automotive skylight glass according to claim 2, characterized in that: The method for manufacturing the tourmaline functional film layer (8) comprises the following steps: S1: mixing and grinding graphene, titanium dioxide and tourmaline powder in a mass ratio of (25-40): (4-15): (59-70); S2: mixing the ground mixture with the high temperature curing conductive filler and stirring thoroughly; S3: The fully stirred mixture is evenly coated on the surface of the second glass substrate (2), and after drying at 80°C-140°C, it is transferred to a high-temperature curing furnace and cured at a temperature of 150°C-250°C for 5min-15min.

4. The intelligent automotive skylight glass according to claim 3, characterized in that: In step S2, the high temperature curing conductive filler includes the following percentages of raw materials: Basic resin 45%-70%, conductive filler 25%-35%, curing agent 1%-10%, plasticizer 0.7%-2.1%, additive 0.1%-1%.

5. The intelligent automotive skylight glass according to claim 1, characterized in that: The thermoplastic membrane (3) is doped with a high molecular polymer containing a stabilizing component and a filtering component.

6. The intelligent automotive skylight glass according to claim 5, characterized in that: The thermoplastic film (3) is an EVA film mainly made of ethylene-vinyl acetate copolymer, or a PVB film mainly made of polyvinyl butyral, or a modified thermoplastic film doped with 0.1%-0.5% by mass of 4-benzoyloxy-2,2,6,6-tetramethylpiperidine and 0.1%-0.2% by mass of hexamethylphosphoric triamide.

7. The intelligent automotive skylight glass according to claim 1, characterized in that: The heat-insulating heating layer (4) comprises at least one silver-based composite layer, and the silver-based composite layer is arranged between low-resistance transparent conductive films.

8. The intelligent automotive skylight glass according to claim 7, characterized in that: The heat-insulating heating layer (4) further comprises a dielectric layer, which is arranged on the outside of one of the outermost low-resistance transparent conductive films; the material of the dielectric layer comprises titanium dioxide, silicon dioxide, and silicon nitride.

9. The intelligent automotive skylight glass according to claim 7, characterized in that: The heat-insulating heating layer (4) comprises a silver-based composite layer, the sheet resistance of which is 2.2-3.8Ω / □, the heat power is 200W / M2-270W / M2, and the shading coefficient is 0.46-0.

55.

10. The intelligent automotive skylight glass according to claim 7, characterized in that: The heat-insulating heating layer (4) comprises two silver-based composite layers, the sheet resistance of which is 1.1-1.8Ω / □, the heat power of which is 330W / M2-420W / M2, and the shading coefficient of which is 0.35-0.

39.

11. The intelligent automotive skylight glass according to claim 7, characterized in that: The heat-insulating heating layer (4) comprises three silver-based composite layers, with a square resistance of 0.6-0.9Ω / □, a thermal power of 450W / M2-620W / M2, and a shading coefficient of 0.29-0.

35.

12. The intelligent automotive skylight glass according to claim 1, characterized in that: The protective layer (5) is provided with a plurality of groups, and the plurality of groups of the protective layer (5) are respectively provided between adjacent functional film layers. The material of the protective layer (5) includes a combination of one or more of silicon dioxide and silicon nitride.

13. A control system for an intelligent automotive skylight glass according to any one of claims 1 to 12, characterized in that: It includes multiple intelligent control modules, which include an intelligent heating module, a photoelectric conversion module, an intelligent dimming module, an intelligent air purification module and a comprehensive control module; the control system automatically adjusts the state of the skylight glass according to external environmental conditions.

14. The control system of the automobile intelligent skylight glass according to claim 13, characterized in that: The intelligent heating module integrates a heat-insulating heating layer 4, a temperature sensor, a pressure sensor, a control circuit and an onboard PC. Through mutual cooperation, the heating intensity can be automatically adjusted according to changes in the ambient temperature in the vehicle and the pressure on the roof.

15. The control system of the intelligent automotive skylight glass according to claim 13, characterized in that: The photoelectric conversion module integrates a photoelectric conversion layer 6, a control circuit, an inverter, a vehicle-mounted battery and a vehicle-mounted PC. The photoelectric conversion layer 6 converts light energy into electrical energy and is connected to the control circuit through the edge busbar and the conductive foil extending therefrom to realize the storage and utilization of electrical energy.

16. The control system of the intelligent automotive skylight glass according to claim 13, characterized in that: The intelligent dimming module integrates an electro-dimming layer 7, a control circuit, a light sensor, a temperature sensor and an onboard PC, and intelligently adjusts the electro-dimming layer 7 according to external light and temperature conditions.

17. The control system of the intelligent automotive skylight glass according to claim 13, characterized in that: The intelligent air purification module integrates a tourmaline functional film layer 8, a control circuit, an on-board PC, and an air detection module.

18. The control system of the intelligent automobile skylight glass according to claim 13, characterized in that: The comprehensive control module is responsible for coordinating the work of each intelligent control module.

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