CN108807576A - A kind of solar energy vehicle window pad pasting - Google Patents

Abstract

The invention relates to the technical field of vehicle accessories, in particular to a solar car film for window glass or sunroof glass, which is used for bonding on the inner surface of car window glass or skylight glass. The solar car film includes an adhesive layer, a solar Soft film layer, output electrode and car film layer. One side of the solar soft film layer is provided with an adhesive layer for bonding with the car glass. The solar soft film layer contains a flexible solar cell film, which is externally connected to the output electrode, and the other side of the solar soft film layer is connected to the car film layer. The invention has the advantages of utilizing solar power to generate electricity, improving the traditional car window film technology to utilize reflected heat, saving energy, and having a simple structure, low cost, and suitable for large-scale use.

Description

A solar car window film

technical field

The invention relates to the technical field of vehicle accessories, in particular to a solar automobile film for vehicle window glass or skylight glass, which is used for bonding on the inner surface of the vehicle window glass or skylight glass.

Background technique

With the depletion of global petroleum energy and the aggravation of pollution, the society's demand for new energy has reached an unprecedented height. The continuous growth of population has further exacerbated this trend of environmental degradation. Vehicles, as the most widely used road transportation means, account for an increasing proportion of energy consumption. The state also encourages the development of new energy technologies and industrial upgrading, and has adopted many policies to promote the development of the new energy industry. Solar energy is an inexhaustible and inexhaustible clean energy with a wide range of existence and high energy, and is suitable for decentralized and large-scale applications. In the contemporary era when solar thin film technology is becoming more and more mature, many people use solar energy on building roofs or vehicles to supplement the lack of daily energy consumption and facilitate cleaning. Along with the wide application of electric vehicles, the solar car window sticking film involved in the present invention is a new type of product conforming to the trend of energy saving, emission reduction, and low-carbon environment-friendly society.

Chinese patent CN201310164794 discloses a solar car sunroof and its manufacturing method. By using thin-film solar cells with ultra-thin glass substrates, the solar cell films are arranged between the arched skylight glass by using a lamination process, and the glass and battery panels It is bonded by EVA, PVB or ion bond resin, each cell is connected in series and parallel with wires or coated electrodes, and finally two wires are drawn out to connect with external electrical equipment. The production process of the solar car sunroof glass is extremely complicated, with many steps, limited preparation temperature, harsh production environment, low yield rate and affects the efficiency of the components. Prevent the displacement of silicon wafers caused by the flow of PVB during processing. Moreover, the size of the sunroof is small, and the light energy that can be utilized is also less, and the actual effect is not good.

Chinese patent CN20161110183 discloses a vehicle-mounted solar charging window and its window air-conditioning system. It adopts a double-layer structure, the outer layer is made of transparent light glass, and the inner layer is made of glass containing a solar polysilicon charging plate. The inner and outer layers can be raised and lowered independently. Lower the inner panel when driving, and raise the inner solar panel in summer and when parking for sunshade and energy charging. This invention solves the problem of insufficient solar energy utilization space, fully utilizes the window to increase the area of solar energy to absorb light energy, provides charging for vehicles, and supplies power to on-board equipment such as air conditioners. At the same time, a temperature sensor and temperature control equipment are installed inside the car. When the temperature in the car is not within the preset range, the temperature control switch can be automatically controlled to turn on the car air-conditioning system in the car to adjust the temperature in the car. When the temperature is higher than the preset value, the control device controls the air-conditioning mode conversion control mode to work in the cooling mode, and when the temperature is lower than the preset value, the control device controls the air-conditioning mode conversion control mode to work in the heating mode. But this invention has greatly increased the thickness of the car door, and requires redesign of the car structure, which not only greatly increases the cost of the car, but also causes the described equipment and process to be affected by the different curved structural surfaces and curved shapes of different models. The degree of adaptation to the window types of different vehicles is also very limited.

Contents of the invention

The technical problem to be solved by the present invention is to provide a solar car window film with multiple functions, low cost and installation performance aiming at the above-mentioned technical problems existing in the solar cells used for vehicle windows.

A solar car window film proposed by the present invention is used for bonding on the inner surface of car window glass or skylight glass, wherein: the solar car film includes an adhesive layer, a solar soft film layer, an output electrode and a car film layer, and the The adhesive layer is composed of an adhesive with good weather resistance and high transparency. The solar soft film layer includes one or several flexible solar cell films, and the solar cell films are electrically connected in series, in parallel or in combination. and connect the external circuit through the output electrode; one side of the solar soft film layer is provided with an adhesive layer for bonding with the car glass, and the other side of the solar soft film layer is connected with the car sticker film layer. The car film layer is laminated with a multi-layer film structure, which has multiple functions such as heat insulation and sun protection, UV protection or safety and explosion protection.

In the present invention, the adhesive layer is composed of an adhesive with good weather resistance and high transparency, specifically an acrylic adhesive and a polyurethane adhesive.

In the present invention, the output electrode and the external circuit are both compounds or polymers with high transparency and good electrical conductivity, and their materials are not limited to one of zinc oxide, tin oxide, silver nanowires, titanium dioxide nanoparticles or graphene .

In the present invention, the car film layer includes the function of ordinary car window glass film, and is composed of a wear-resistant outer layer, a polyester layer, a heat insulation layer, an anti-ultraviolet layer, a pressure-sensitive adhesive layer, and an "easy-to-construct" rubber grinding layer. It is made of one or more of the release paper layers, which have the functions of heat insulation and sun protection, UV protection, safety and explosion protection, creating a private space, reducing air conditioning consumption, increasing beauty and anti-glare.

In the present invention, the solar window film has good flexibility, and the corresponding bending radius is greater than 1m.

In the present invention, the output electrodes communicate with the external circuit through grid wire electrodes, and transmit electric energy to the vehicle power supply and loads through the solar controller MPPT. The loads include air conditioners, fans, lights, entertainment and application equipment, etc.

In the present invention, the thickness of the solar window film is 0.6 mm to 1 mm.

The present invention has the following beneficial effects due to the adoption of the above-mentioned technical scheme:

1) The shape of the solar window film can be designed according to the curved surface of the vehicle window and the sunroof. It does not need to redesign the vehicle structure, and does not require expensive lathe molds. It can perfectly fit different models and has a wide range of applications. Through different solar vehicles The application of window film can adapt to the matching power supply demand according to different environmental requirements.

2) The solar window film is improved based on the existing mature technology. The solar cell film layer is added to the preparation process of the window film, which is conducive to standardization and large-scale production.

3) The solar car window film is installed by the post-assembly method. When there is a problem with the solar power supply, you only need to disconnect the power supply interface and replace it with a method similar to ordinary car window film. Tear off the old solar car window film and paste a new one , Convenient and fast, it can be completed in ordinary 4S stores, no special equipment and manufacturers are required, and maintenance costs are shortened.

4) Unlike traditional car window films that rely on reflected light to insulate heat and light, solar car window films achieve the same effect of heat and light insulation by absorbing the energy of light. On the one hand, it can provide electric energy to the car to avoid energy waste; on the other hand, depending on the use environment, it is required to add a corresponding reflective layer or heat insulation layer film to the window film layer, and the remaining light after being absorbed by the solar soft film layer is reflected again. The filter layer or heat insulation layer further enhances the heat insulation and sun protection effect. Compared with ordinary car window film, the light will be softer.

Description of drawings

Fig. 1 is the front schematic diagram of a kind of solar vehicle window film of the present invention;

Fig. 2 is the sectional view of Fig. 1;

Explanation of the reference numbers in the accompanying drawings: 1 is the film adhesive layer, 2 is the solar soft film layer, 3 is the car film layer, and 4 is the output electrode.

Detailed ways

The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings, but these embodiments do not limit the present invention, those of ordinary skill in the art make structural, method, or functional changes based on these embodiments All are included in the scope of protection of the present invention.

As shown in Figure 1, the present invention is a kind of solar car window sticking film, is used for bonding on the inner surface of car window glass or sunroof glass, is characterized in that: described solar car sticking film comprises adhesive layer 1, solar soft film layer 2. The output electrode 4 and the car film layer 3. The adhesive layer 1 is located between the solar soft film layer 2 and the window glass, and is composed of a highly transparent adhesive with good weather resistance, such as acrylate adhesive, which is widely used in bonding materials such as steel, iron, aluminum, Titanium, stainless steel, plastic, glass, ceramics, etc., used to bond solar window film and car glass. The solar soft film layer 2 is located between the car sticker film layer and the adhesive layer, and is bonded to the car sticker film layer through a polyurethane film (not shown in the figure). The car sticker film layer is located at the outermost layer and is formed by laminating a multi-layer film structure. The output electrode 4 communicates with the external circuit through grid line electrodes, and transmits current to the vehicle through the solar controller MPPT.

Solar soft film layer 2 is a whole new type of perovskite solar thin film battery customized according to the size of the window film. It uses glass or transparent plastic substrates, which is nearly 70% transparent to the human eye and mainly absorbs infrared light and near-infrared light. , but not so sensitive to visible light, its photoelectric conversion efficiency can reach more than 20%, surpassing solar thin film cells made of silicon and cadmium telluride. The main material is made of lead, halogen and amine salt. It is light and flexible and can be produced in large quantities and at low cost. The thin film module is non-polluting and environmentally friendly. It is suitable for environments with strong light, weak light and scattered light. The bottom of the soft film layer is connected to the solar controller MPPT through the output electrode 4, which can detect the power generation voltage of the solar soft film layer in real time, and track the highest voltage and current value (VI), so that the system can discharge with the highest efficiency.

The conductive lines and electrode film materials in the solar soft film layer 2 are composed of high-transparency graphene, silver nanowires and titanium dioxide nanoparticles, etc., replacing the metal electrodes with poor transparency in the previous solar silicon cells, thus taking into account the solar cells. The performance and transparency of the visible light wavelength region, and the composite method of this electrode can be prepared by solution method or evaporation deposition method, the process is simple and the cost is low.

The car film layer 3 is similar to the traditional car film. It is formed by laminating a multi-layer film structure. The film structure includes an anti-wear layer, a transparent PET safety base layer, a metal heat insulation layer, an adhesive, a UV absorbing layer, and a PET release film. , has the functions of heat insulation and sun protection, anti-glare, safety and explosion-proof, and at the same time, according to the one-way perspective performance of the solar film, it can achieve the purpose of protecting personal privacy. In addition, it can also reduce the damage of objects and personnel in the car caused by ultraviolet radiation. Through physical reflection, on the one hand, it can reduce the temperature inside the car and reduce the use of car air conditioners. On the other hand, the solar soft film layer 2 can transmit light on both sides to generate electricity. , thereby reducing fuel consumption and saving part of the expenses.

Due to the use of flexible perovskite solar cell components, the solar window film has good flexibility, and the radius of curvature can reach between 300mm~1000mm, preferably within the range of 800mm~1000mm, which can fit different types of window glass and Skylight glass radian, wide application range, high universality.

The output electrode 4 in the present invention communicates with the external circuit through grid line electrode clustering, enters the car through the roof, car door, gutter and other wiring forms, uses card slots and glue to fix it, and sends it to the car through the solar controller MPPT. The power supply and the load transmit electric energy, and the load includes the air conditioner, fan, lighting, entertainment and application equipment in the car.

The thickness of the novel solar car window film in the present invention is between 0.6 and 1 mm.

In the present invention, the installation and replacement measures of the solar car window film can be carried out in 4S stores, and the place for installation and replacement is not limited. The specific implementation steps are (1) disconnect the card slot interface with the vehicle solar controller MPPT (2) peel off the original old film (3) clean the window (4) select the solar energy that matches the structure and shape of the window or skylight to be glued Car window film, tear off the protective film, paste and fix it after spraying water, wipe off the water stains with a scraper (5), send the output electrode 4 into the car through wiring, and interface with the card slot of the car solar controller MPPT Connected and fixed with sealant at the same time.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art. In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. a solar car window film, for being bonded on the inner surface of car window glass or skylight glass, it is characterized in that: described solar car sticking film comprises viscose layer, solar soft film layer, output electrode and car sticking film layer, so The adhesive layer is composed of an adhesive with good weather resistance and high transparency. The solar soft film layer includes one or several flexible solar cell films, and the solar cell films are electrically connected in series, in parallel or in combination. and connect the external circuit through the output electrode; one side of the solar soft film layer is provided with an adhesive layer for bonding with the car glass, and the other side of the solar soft film layer is connected with the car sticker film layer. The car film layer is made of laminated multi-layer film structure, which can have one or more functions such as heat insulation and sun protection, ultraviolet protection or safety and explosion protection according to requirements. 2. The solar vehicle window film according to claim 1, characterized in that: the adhesive layer is composed of an adhesive with good weather resistance and high transparency, specifically an acrylate adhesive or a polyurethane adhesive. 3. The solar window film according to claim 1, characterized in that: the output electrodes and the external circuit are compounds or polymers with high transparency and good electrical conductivity, and the materials are not limited to zinc oxide, tin oxide, One of silver nanowires, titanium dioxide nanoparticles, or graphene. 4. The solar car window film according to claim 1, characterized in that: the car film layer includes the function of ordinary car window glass film, consisting of a wear-resistant outer layer, a polyester layer, a heat-insulating layer, an anti-ultraviolet layer, Pressed by one or more of pressure-sensitive adhesive layer, "easy-to-construction" adhesive layer or release paper layer, etc., it has heat insulation, sun protection, UV protection, safety and explosion-proof, creating a private space, reducing air-conditioning consumption and saving , Increase aesthetics and anti-glare effects. 5. The solar window film according to claim 1, characterized in that: the solar window film has good flexibility, and the corresponding bending radius is less than 1m. 6. The solar vehicle window film according to claim 1, characterized in that: the output electrode is connected to the external circuit through the grid electrode cluster, and the solar controller MPPT transmits electric energy to the automobile power supply and the load. The load includes the air conditioner, fan, lighting, entertainment and application equipment in the car. 7. The solar window film according to claim 1, characterized in that: the thickness of the solar window film is between 0.6-1 mm.