Photovoltaic awning

Abstract

The utility model discloses a photovoltaic awning which comprises sunshade cloth and a reel, the reel is used for rolling the sunshade cloth, the sunshade cloth is unfolded through a supporting assembly, solar thin film batteries are arranged on the sunshade cloth in an attached mode, the solar thin film batteries are arranged in rows, and the rows are connected in parallel. Current collection is carried out through the CIGS solar module; the CIGS solar assembly comprises a junction box, an MPPT solar control box and an energy storage battery. The sun cloth comprises an EVA material layer and a PVC material layer, the EVA material layer and the PVC material layer are connected through a hot melt adhesive sheet, and the solar thin film cell is located on the surface of the EVA material layer. The solar thin-film battery is arranged on the surface of the sunshade cloth to obtain electric energy, so that collection and supply of energy are realized.

Description

Technical Field

[0001] This utility model pertains to sunshades, specifically a photovoltaic sunshade awning. Background Technology

[0002] Awnings are widely used in RVs, and the current product types and structures vary. Using solar panels on the awning fabric to generate electricity is an existing application in this field, employing flexible thin-film solar cells, as seen in the existing patent for an RV solar awning (publication number CN217741376U). However, considering that the awning fabric needs to be rolled up, how to design the solar panels to achieve better fit and improve power generation quality and practical effect are important aspects of product structure optimization. Therefore, this utility model provides a photovoltaic awning. Utility Model Content

[0003] The utility model aims to provide a photovoltaic sunshade awning that can be applied to RVs, improving the quality and stability of the product.

[0004] The technical solution provided by this utility model is: a photovoltaic sunshade awning, including a sunshade cloth and a roller, wherein the roller is used to roll up the sunshade cloth, the sunshade awning is supported by a support component to expand the sunshade cloth, and a solar thin film battery is attached to the sunshade cloth, wherein the solar thin film battery is arranged in rows and connected in parallel between the rows, and collects electricity through CIGS solar modules.

[0005] The CIGS solar module includes a junction box, an MPPT solar control box, and an energy storage battery;

[0006] The sunshade fabric includes an EVA material layer and a PVC material layer, which are connected by a hot melt adhesive sheet, and the solar thin-film battery is located on the surface of the EVA material layer.

[0007] Furthermore, the awning includes a support assembly, which is a multi-link assembly including a front arm and a rear arm. The rear arm consists of a set of telescopically sliding outer and inner support rods. The front arm is slidably connected to the support arm, and a pneumatic rod is provided between the support arm and the outer support rod.

[0008] In this design, the roller is located at the end of the forearm and is a moving part during the unfolding of the sunshade.

[0009] In this design, the external strut and support arm are fixedly mounted on the side of the vehicle or on a fixed rod.

[0010] In this scheme, the energy storage battery is connected to an inverter, thereby enabling charging and discharging.

[0011] In this scheme, the reel is provided with an end cap, the end cap is fixed to the spindle by a pin, the spindle includes a torsion spring wound on it, and the spindle drives the reel by the torsion spring; the spindle passes through the end cap and is connected to a rotating mechanism, the rotating mechanism includes a fixed bearing or a motor, and when the motor is used to realize automatic winding, a reducer is included.

[0012] In this scheme, the rotating mechanism is provided with a housing, which includes a fixed end of a fixed rod or a fixed object.

[0013] In this design, the sunshade fabric is manually rolled up by controlling the movement of the roller via a drive pin.

[0014] The awning described in this invention is suitable for motorhomes and generates electricity through CIGS solar modules to power the electrical equipment inside the vehicle.

[0015] The beneficial effects of this invention are as follows: This sunshade uses CuInxGa(1-x)Se2(CIGS) thin-film solar cells as flexible solar modules. Compared with existing edge fixing methods such as adhesives and zipper stitching, this invention can improve the adhesion between the solar thin-film cells and the sunshade fabric, especially reducing wrinkles and damage caused by repeated rolling operations. For the sunshade fabric, this invention uses hot melt adhesive to connect the EVA material layer and the PVC material layer, which is the optimal combination. Based on one atmosphere of pressure, hot pressing at 140 degrees Celsius for 20 minutes achieves the bonding of the three materials. Then, a tensile test is performed to separate the EVA material layer and the 10mm PVC material layer. The required force is greater than or equal to 40N, and this force can be maintained stably. Its significant effects include that the hot melt adhesive can cover all fabric layers and achieve uniform adhesion. Other methods such as glue may result in excessive glue thickness in some areas or raised strips at the connection points, which are not conducive to rolling and will accelerate product wear. This invention also adopts a method of arranging solar thin-film battery modules in rows and connecting them in series. After testing, the efficiency of CIGS perovskite series solar cells reached 24.6%, which means that this type of battery combination has the highest efficiency. In addition, each row of battery modules makes it easier to troubleshoot, as only the troubleshooting of each row needs to be done, which also facilitates the assembly of the product. Attached Figure Description

[0016] Figure 1 The sunshade cloth described in this utility model has a three-layer structure;

[0017] Figure 2 It refers to the overall structure of the awning;

[0018] Figure 3 This is a diagram showing the sunshade after it has been rolled up;

[0019] Figure 4This is a schematic diagram of the structure at the end of the scroll;

[0020] Figure 5 This is a schematic diagram of the split structure at the end of the scroll;

[0021] Figure 6 This is a structural schematic diagram of supporting component 3;

[0022] Figure 7 This is a distribution diagram of solar thin-film batteries on a shade cloth;

[0023] Figure 8 This is a schematic diagram of the installation of the sunshade awning described in this utility model on a motorhome. Detailed Implementation

[0024] To illustrate the technical solution disclosed in this utility model in detail, further description is provided below with reference to the accompanying drawings.

[0025] Figure 1 The three-layer structure of the sunshade fabric 1 of the sunshade awning described in this utility model is shown, including an EVA material layer 101, a hot melt adhesive layer 102 and a PVC material layer 103, with the solar thin film battery located on the surface of the EVA material layer 101. Figure 7 A partial diagram showing the distribution of solar thin-film batteries on a shade cloth is displayed.

[0026] Figure 2 This refers to the overall structure of the awning. The awning fabric 1 is rolled up via a roller 2, and the rolling operation is achieved through the support component 3. After rolling up, as shown... Figure 3 As shown.

[0027] Figure 4 In the winding mechanism, an end cap 201 is provided at the end of the roller 2. The end cap 201 fixes the spindle 203 to the end cap 4. A torsion spring is wound around the spindle 203, and the spindle 203 drives the roller 2 through the torsion spring. The spindle 203 passes through the small end cap 204 and is connected to a rotating mechanism. The rotating mechanism includes a fixed bearing or a motor. When an automatic winding is achieved using a motor, a reducer is included. The leading edge of the sunshade fabric 1 is supported by a retaining strip 202 to keep the fabric flat. Figure 5 As shown, the end cap 201 is composed of two half-shells combined, with a plug at the joint for waterproofing and protection of the rotating mechanism. The pin 4 serves as the drive unit for manual control, through which... Figure 5 The structure shown drives the mandrel 203 to rotate, thus achieving winding.

[0028] Figure 6The structure of support assembly 3 is shown. Support assembly 3 includes a front arm 301 and a rear arm. The rear arm consists of a set of telescopically sliding outer support rods 302 and inner support rods 303. The front arm 301 is slidably connected to support arm 304. A pneumatic rod 305 is provided between support arm 304 and outer support rods 302. Support arm 304 and outer support rods 302 have the same movable connection point. This connection point can be located on a fixed rod 306. The fixed rod 306 can be set on the side of the RV to improve the support effect and avoid damage caused by opening holes for positioning on the side of the RV.

[0029] Figure 8 This is a schematic diagram of the installation of the awning described in this utility model on a motorhome. Figure 8 We can see that the roller 2 moves during the opening of the awning. Specifically, the unfolding method is as follows: the fixing rod 306 is fixed to the side of the RV and has a groove for storing the pneumatic rod 305, the outer support rod 302, and the inner support rod 303. The outer support rod 302 and the inner support rod 303 can slide to achieve extension and retraction. All the above connection points are movable connections, such as the connection point between the support arm 304 and the pneumatic rod 305, and the connection point between the forearm 301 and the support arm 304, etc., thus enabling the awning to be rolled up and down freely.

[0030] As is known in the art, the winding control of this utility model can be manual or automatic. Manual winding is driven by a rocker arm controlling the pin 4, while electric winding is driven by a disc motor driving the spindle 203. Figure 8 The middle strip 202 is fixed to the side of the RV. Near the strip 202, junction boxes can be installed. The flexible CIGS photovoltaic modules in each row are connected in parallel to the junction box, including the use of MC4 connectors for wiring, which connects to the MPPT solar control box. The output of the MPPT solar control box is connected to the energy storage battery, and the energy storage battery is connected to an inverter. This completes the power generation of the CIGS solar modules, and the electrical energy is used to power the electrical equipment in the RV.

Claims

1. A photovoltaic awning, comprising a shading fabric and a roller, wherein the roller is used to roll up the shading fabric, and the awning is extended by a support assembly, characterized in that, The sunshade cloth is fitted with solar thin-film batteries, which are arranged in rows and connected in parallel between the rows, and collect electricity through CIGS solar modules. The CIGS solar module includes a junction box, an MPPT solar control box, and an energy storage battery; The sunshade fabric includes an EVA material layer and a PVC material layer, which are connected by a hot melt adhesive sheet, and the solar thin-film battery is located on the surface of the EVA material layer.

2. The photovoltaic awning according to claim 1, characterized in that, The sunshade awning includes a support assembly, which is a multi-link assembly including a front arm and a rear arm. The rear arm consists of a set of telescopic and sliding outer and inner support rods. The front arm is slidably connected to the support arm, and a pneumatic rod is provided between the support arm and the outer support rod.

3. The photovoltaic awning according to claim 2, characterized in that, The roller is located at the end of the forearm and is a moving part during the unfolding of the sunshade.

4. The photovoltaic awning according to claim 2, characterized in that, The external struts and support arms are fixedly mounted on the side of the vehicle or on a fixed rod.

5. The photovoltaic awning according to claim 1, characterized in that, The energy storage battery is connected to an inverter, thereby enabling charging and discharging.

6. The photovoltaic awning according to claim 1, characterized in that, The reel is provided with an end cap, which fixes the spindle to the end cap by a pin. The spindle includes a torsion spring wound around it, and the spindle drives the reel through the torsion spring. The spindle passes through the end cap and is connected to a rotating mechanism. The rotating mechanism includes a fixed bearing or a motor. When the motor is used to achieve automated winding, a speed reducer is also included.

7. The photovoltaic awning according to claim 6, characterized in that, The rotating mechanism is provided with a housing, which includes a fixed end to a fixed rod or a fixed object.

8. The photovoltaic awning according to claim 6, characterized in that, When the shade cloth is manually rolled up, the movement of the roller is controlled by a drive pin.

9. The photovoltaic awning according to claim 1, characterized in that, The aforementioned awning is suitable for motorhomes and generates electricity through CIGS solar modules to power the vehicle's electrical equipment.

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