Shaped photovoltaic glass and shaped photovoltaic glass manufacturing apparatus

Abstract

The application relates to the technical field of photovoltaic glass manufacturing, and discloses a special-shaped photovoltaic glass, which comprises a plate body, and a rim is arranged on the plate body; the rim comprises first connecting plates and second connecting plates which are sequentially connected; the first connecting plates are connected to the plate body; the first connecting plates of the two rims extend towards one side of the plate body; and a positioning cavity is formed among the plate body, the first connecting plates and the second connecting plates. The plate body is in a rectangular shape; and a pair of adjacent or a pair of opposite sides of the plate body are respectively provided with the rims. The application further provides a special-shaped photovoltaic glass manufacturing device, which comprises a calender assembly, a cutting assembly and a forming assembly; the forming assembly comprises a lower die, an upper die, a side die and a guide column; the guide column is fixedly connected to the lower die; the upper die is slidingly connected to the guide column; and the side die is used for forming the rims on the edges of the glass sheet. The special-shaped photovoltaic glass provided by the application can improve the efficiency of a solar cell panel.

Description

Technical Field

[0001] This application relates to the field of photovoltaic glass manufacturing technology, and more specifically, to an irregularly shaped photovoltaic glass and an equipment for manufacturing irregularly shaped photovoltaic glass. Background Technology

[0002] Photovoltaic glass, also known as ultra-clear glass, colorless glass, high-transparency glass, or low-iron glass, features high light transmittance and transparency. Ultra-clear glass boasts a light transmittance exceeding 92% and is primarily used in the interior and exterior decoration of high-end buildings, electronic products, high-end automotive glass, solar cells, high-end landscaping, high-end glass furniture, and various imitation crystal products. The glass substrate for solar photovoltaic power generation systems requires ultra-clear glass because its light transmittance of over 92% meets the power generation requirements of solar cells.

[0003] Solar cell glass is typically placed on the surface of a solar panel to protect the silicon wafer and meet the requirements for photovoltaic power generation. However, existing solar cells generally have a mounting frame on the outside of the glass to secure the glass and silicon wafer. This frame increases the size of the solar cell, reducing the actual light absorption rate of a solar cell of the same area and thus lowering its efficiency. Summary of the Invention

[0004] The purpose of this application is to provide irregularly shaped photovoltaic glass and an equipment for manufacturing irregularly shaped photovoltaic glass, which solves the technical problem that the fixed frame reduces the light absorption rate of solar cells, and achieves the technical effect of improving the light absorption rate and efficiency of solar cells.

[0005] In a first aspect, embodiments of this application provide an irregularly shaped photovoltaic glass, including a plate body with an edge band. The edge band includes a first connecting plate and a second connecting plate connected in sequence. The first connecting plate is connected to the plate body, and the first connecting plates of the two edge bands extend toward one side of the plate body. A positioning cavity is formed between the plate body, the first connecting plate, and the second connecting plate.

[0006] In another possible implementation of the first aspect, the plate is rectangular, and a pair of adjacent or opposite sides of the plate are respectively provided with edging.

[0007] In another possible implementation of the first aspect, the middle of the plate has a raised or recessed structure.

[0008] In another possible implementation of the first aspect, the angle between the first connecting plate and the plate body is a right angle, and the angle between the second connecting plate and the first connecting plate is a right angle or an acute angle; or the first connecting plate is curved.

[0009] Secondly, embodiments of this application provide a special-shaped photovoltaic glass manufacturing equipment, including a rolling assembly, a cutting assembly, and a forming assembly. The rolling assembly is used to roll the glass melt into a glass strip at a preset temperature. The cutting assembly is used to cut the glass strip into multiple glass sheets. The forming assembly includes a lower mold, an upper mold, a side mold, and a guide post. The upper mold is slidably connected to the guide post, and the side mold is used to form an edge banding on the edge of the glass sheet.

[0010] In one possible implementation of the second aspect, a first mold cavity is provided on the lower mold and a second mold cavity is provided on the upper mold. The first mold cavity and the second mold cavity cooperate with each other and are used to roll and form a protruding structure or a recessed structure on the glass sheet.

[0011] In another possible implementation of the second aspect, the surface of the pressure roller of the calendering assembly is provided with an annular protrusion or recess structure in the circumferential direction.

[0012] In another possible implementation of the second aspect, a heating component is provided in the lower mold, upper mold, or side mold.

[0013] In another possible implementation of the second aspect, a buffer spring is provided on the feed mechanism of the side mold.

[0014] In another possible implementation of the second aspect, an ejector assembly is provided in the feeding direction of the lower die.

[0015] The beneficial effects of the embodiments in this application compared with the prior art are:

[0016] An edge-wrapping structure is provided on the edge of the photovoltaic glass. The edge-wrapping structure is used to fix this irregularly shaped photovoltaic glass. The edge-wrapping structure on the photovoltaic glass itself replaces the fixing frame when assembling solar panels. The area covered by the photovoltaic glass can be used as the effective area of ​​the solar cell. This reduces the proportion of the solar cell occupied by the fixing frame, improves the light absorption rate of the solar cell, and improves the efficiency of the solar cell. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of an example of irregularly shaped photovoltaic glass provided in an embodiment of this application;

[0019] Figure 2This is a schematic diagram of the front view structure of an example of irregularly shaped photovoltaic glass provided in an embodiment of this application;

[0020] Figure 3 This is a three-dimensional structural schematic diagram of another example of irregularly shaped photovoltaic glass provided in the embodiments of this application;

[0021] Figure 4 This is a schematic diagram of the front view structure of another irregularly shaped photovoltaic glass provided in the embodiments of this application;

[0022] Figure 5 This is a schematic diagram of the main structure of an example of irregularly shaped photovoltaic glass manufacturing equipment provided in this application embodiment;

[0023] Figure 6 yes Figure 5 A schematic diagram of the AA section of the irregularly shaped photovoltaic glass manufacturing equipment;

[0024] Figure 7 This is a schematic diagram of the front view structure of an example of a calendering component provided in an embodiment of this application;

[0025] Figure 8 This is a three-dimensional structural schematic diagram of an example of an irregularly shaped photovoltaic glass manufacturing equipment provided in an embodiment of this application;

[0026] Figure 9 yes Figure 8 A partial structural diagram of section B of the irregularly shaped photovoltaic glass manufacturing equipment;

[0027] In the diagram, 100 is the plate; 200 is the edging; 210 is the first connecting edge; 220 is the second connecting edge; 300 is the positioning cavity; 400 is the rolling assembly; 410 is the glass strip; 500 is the cutting assembly; 600 is the forming assembly; 610 is the lower mold; 611 is the first mold cavity; 612 is the ejection assembly; 613 is the hydraulic cylinder; 614 is the guide rail; 620 is the upper mold; 621 is the second mold cavity; 630 is the forming mold; 631 is the protrusion; 632 is the buffer spring; 640 is the guide post; and 700 is the guide frame. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0029] It should be noted that when a component or structure is referred to as being "fixed to" or "set on" another component or structure, it can be directly on or indirectly on the other component or structure. When a component or structure is referred to as being "connected to" another component or structure, it can be directly connected to or indirectly connected to the other component or structure.

[0030] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device, component, or structure referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] Existing solar panels are generally rectangular in structure, with a ring-shaped fixing frame around them to secure the photovoltaic glass and silicon wafer. The photovoltaic glass is positioned above the silicon wafer to protect it while allowing light to pass through to its surface, thus fulfilling the requirement for sunlight transmission. However, the fixing frame reduces the effective area of ​​the solar panel. This results in a decrease in the solar cell's light absorption rate for the same area. The ratio of the area of ​​the solar cell capable of absorbing solar energy to its light absorption rate is the ratio of the total area of ​​the solar cell.

[0033] In addition, when existing solar panels are fixed with a frame, the frame needs to be fixed around the edges of the photovoltaic glass and silicon wafer, which makes the installation process of solar cells more complicated and reduces the production and assembly efficiency of solar cells.

[0034] Based on the above reasons, this application provides an irregularly shaped photovoltaic glass with an edge-wrapping structure on its edge. The edge-wrapping structure is used to fix the irregularly shaped photovoltaic glass. The edge-wrapping structure on the photovoltaic glass itself replaces the fixing frame when assembling solar panels. The area covered by the photovoltaic glass can be used as the effective area of ​​the solar cell, reducing the proportion of the solar cell occupied by the fixing frame, improving the light reception rate of the solar cell, and improving the efficiency of the solar cell.

[0035] The irregularly shaped photovoltaic glass in the embodiments of this application will be described below with specific examples.

[0036] Figure 1 This is a three-dimensional structural diagram of an example of irregularly shaped photovoltaic glass provided in an embodiment of this application. Figure 2 This is a schematic diagram of the front view structure of an example of irregularly shaped photovoltaic glass provided in an embodiment of this application, as shown below. Figure 1 and Figure 2 As shown in the illustration, this application provides an irregularly shaped photovoltaic glass, including a plate 100, which is the main structure of the irregularly shaped photovoltaic glass. An edge 200 is provided on the plate 100, and the edge 200 is an integral structure with the plate 100, allowing the plate 100 to be fixed. By fixing the photovoltaic glass with the edge 200, which is an integral structure with the plate 100, there is no need to use a separate fixing frame to install and fix the photovoltaic glass. This effectively increases the light-receiving area of ​​the photovoltaic glass, reduces the useless area that cannot utilize solar energy, and improves the efficiency of the photovoltaic glass.

[0037] Specifically, such as Figure 1 and Figure 2 As shown, the edging 200 includes a first connecting plate 210 and a second connecting plate 220 connected in sequence. The first connecting plate 210 and the second connecting plate 220 are connected to each other to form an edging structure. The first connecting plate 210 is connected to the plate body 100. The first connecting plates 210 of both edgings 200 extend towards one side of the plate body 100, and a positioning cavity 300 is formed between the plate body 100, the first connecting plate 210, and the second connecting plate 220. When this irregularly shaped photovoltaic glass is installed to form a solar cell, the silicon wafer is placed at the bottom of the plate body 100. The edging 220 is used to fix the structure for installing the solar cell. The silicon wafer is sealed by the installation and fixing structure of this irregularly shaped photovoltaic glass and the solar cell, so that the light-emitting area of ​​the solar cell is expanded to the entire area of ​​the plate body 100, thereby increasing the solar energy absorption area of ​​the solar cell and improving the performance of the solar cell.

[0038] In some implementations, such as Figure 1 and Figure 2As shown, the plate 100 is rectangular, and a pair of adjacent or opposite sides of the plate 100 are respectively wrapped with edging 200. The edging 200 can be used to fix the plate 100 from a pair of adjacent or opposite sides, which facilitates the production and assembly of solar cells.

[0039] It should be noted that the irregularly shaped photovoltaic glass in this application embodiment can be manufactured by molding, thereby realizing the manufacturing of the irregularly shaped photovoltaic glass in this application embodiment. This application embodiment does not limit the mold structure for manufacturing the irregularly shaped photovoltaic glass.

[0040] With a fixed efficiency, the amount of electricity generated per unit area of ​​solar panels is also limited. Therefore, to increase electricity generation, existing solar power plants need to continuously install more solar panels to reach the total electricity produced. Current solar panels are generally planar in structure. To expand electricity generation and increase the power generation area of ​​a solar power plant, the number of solar panels is typically increased, leading to a continuous increase in the land area occupied by solar panels in solar power plants.

[0041] In some implementations, in order to increase the total area of ​​solar panels per unit land area, the middle of the panel 100 in this embodiment can be configured with a raised structure or a recessed structure. The raised structure or recessed structure can increase the effective power generation area of ​​the solar panel, thereby improving the performance of the solar panel.

[0042] Specifically, Figure 3 This is a three-dimensional structural schematic diagram of another example of irregularly shaped photovoltaic glass provided in the embodiments of this application. Figure 4 This is a schematic diagram of the main view structure of another irregularly shaped photovoltaic glass provided in the embodiments of this application, as shown below. Figure 3 and Figure 4 As shown, the middle of the irregularly shaped photovoltaic glass plate 100 can be configured as a raised structure or a recessed structure.

[0043] In some implementations, the angle between the first connecting plate 210 and the plate body 100 is a right angle, which makes the connection between the first connecting plate 210 and the plate body 100 easier to manufacture. The angle between the second connecting plate 220 and the first connecting plate 210 is also a right angle, which is also easier to manufacture.

[0044] In some implementations, the angle between the second connecting plate 220 and the first connecting plate 210 is an acute angle, so that the second connecting plate 220 forms a contraction structure relative to the first connecting plate 210, thereby facilitating the installation of the fixing structure of the solar panel through the second connecting plate 220.

[0045] Figure 5This is a schematic diagram of the main structure of an example of irregularly shaped photovoltaic glass manufacturing equipment provided in this application embodiment, as shown below. Figure 5 As shown in the illustration, this application embodiment also provides an irregularly shaped photovoltaic glass manufacturing device, including a rolling assembly 400, a cutting assembly 500, and a forming assembly 600. The rolling assembly 400 is used to roll the molten glass into a glass strip 410 at a preset temperature. The cutting assembly 500 is used to cut the glass strip 410 into multiple glass sheets. After the glass sheets are produced by the rolling assembly 400 and the cutting assembly 500, the glass sheets can be formed by the forming assembly 600 to produce the irregularly shaped photovoltaic glass in this application embodiment. The high temperature of the molten glass and the glass sheets allows the glass sheets to be formed by the forming assembly 600.

[0046] Specifically, Figure 6 yes Figure 5 A schematic diagram of the AA section of the irregularly shaped photovoltaic glass manufacturing equipment, as shown in the figure. Figure 6 As shown, the molding component 600 in this embodiment includes a lower mold 610, an upper mold 620, a side mold 630, and a guide post 640. The guide post 640 can be fixedly connected to the frame. The upper mold 620 is slidably connected to the guide post 640. A driving device for driving the upper mold 620 to move up and down is fixedly connected to the upper mold 620, so that the upper mold 620 can slide up and down relative to the lower mold 610 along the guide post 640 under the drive of the driving device, thereby calendering the glass.

[0047] Specifically, after the upper mold 620 moves relative to the lower mold 610 to press the glass, the side mold 630 is used to form an edge banding 200 on the edge of the glass sheet.

[0048] Specifically, such as Figure 6 As shown, the lower mold 610 is provided with a mold core for forming the irregular photovoltaic glass in the embodiment of this application, and the upper mold 620 is provided with downwardly curved first forming parts on both sides. The first forming parts can cooperate with the lower mold 610 to form the upper half of the edge 200.

[0049] Specifically, there are two side molds 630, which are respectively set on both sides of the lower mold 610. The side molds 630 are connected to a drive device that drives the side molds 630 to move laterally. The side molds 630 and the lower mold 610 cooperate with each other to form the lower half of the edge 200.

[0050] When forming the irregularly shaped photovoltaic glass in this embodiment, the glass sheet is first transported onto the upper mold 610 via a carrier plate. Guide structures (e.g., guide rails) are provided on both sides of the carrier plate to ensure the glass sheet is fixed in position on the upper mold 610, facilitating subsequent precise forming. Then, the upper mold 620 is driven to move towards the lower mold 610 to form the upper half of the plate 100 and the edge 200 in this embodiment. Simultaneously, the end of the edge 200 is tilted downwards. Then, two side molds 630 are driven to move from both sides of the lower mold 610 towards the lower mold 610, allowing the two side molds 630 and the lower mold 610 to cooperate in forming the lower half of the edge 200, ultimately achieving the purpose of forming the irregularly shaped photovoltaic glass in this embodiment.

[0051] In some implementations, such as Figure 6 As shown, the lower mold 610 is provided with a first mold cavity 611, which can be a protruding structure, and the upper mold 620 is provided with a second mold cavity 621, which can be a recessed structure, so that the first mold cavity 611 and the second mold cavity 621 cooperate with each other. The first mold cavity 611 and the second mold cavity 621 are used to roll and form the protruding structure on the glass sheet.

[0052] Similarly, by cooperating with the first mold cavity 611 and the second mold cavity 621 of other structures, a recessed structure can also be formed on the glass sheet.

[0053] In some implementations, to reduce the pressure on the molding component 600 in molding the irregularly shaped photovoltaic glass in this embodiment, the irregularly shaped photovoltaic glass in this embodiment can be pre-formed by the calendering component 400. Specifically, Figure 7 This is a schematic diagram of the main structure of a calendering component provided in an embodiment of this application, as shown below. Figure 7 As shown, the pressure roller of the calendering assembly 400 has an annular protrusion or recess structure on its circumferential surface. That is, the pressure roller of the calendering assembly 400 uses the annular protrusion and recess structure on its circumferential surface to cooperate with each other to calender the glass sheet into a curved structure, thereby reducing the pressure value of forming the curved surface on the irregular photovoltaic glass by the forming assembly 600 and improving the production efficiency of the irregular photovoltaic glass in this embodiment.

[0054] In some implementations, heating components are provided within the lower mold 610, upper mold 620, or side mold 630. These heating components can heat the glass sheet, maintain its temperature, preserve its plasticity, and improve the forming effect. Specifically, the heating components can be electrothermal heating structures.

[0055] In some implementations, such as Figure 6As shown, the feeding mechanism on the side mold 630 is equipped with a buffer spring 632. The two ends of the buffer spring 632 abut against the frame and the side mold 630 respectively. By setting the buffer spring 632, the side mold 630 can be buffered to avoid excessive squeezing pressure on the glass sheet by the side mold 630, thus ensuring the safety of the irregular photovoltaic glass forming process in this application example.

[0056] In some implementations, the lower mold 610 is provided with an ejector assembly 612 in the feeding direction. The ejector assembly 612 includes two ejector rods. The shape of the ejector rods can match the shape of the lower mold 610 to eject the irregularly shaped photovoltaic glass formed on the lower mold 610, thereby realizing the unloading of the irregularly shaped photovoltaic glass.

[0057] Figure 9 yes Figure 8 A partial structural diagram of section B of the irregularly shaped photovoltaic glass manufacturing equipment is shown in the figure. Figure 8 and Figure 9 As shown, the guide frame 700 is used to guide the glass sheet, allowing it to be smoothly transported onto the lower mold 610 for forming. The ejector assembly 612 is mounted on the guide rail 614 of the guide frame 700, which guides the ejector assembly 612. The hydraulic cylinder 613 is fixedly connected to the guide frame 700, and its output end is connected to the ejector assembly 612. This allows the hydraulic cylinder 613 to push the ejector assembly 612, thereby pushing and sliding the irregularly shaped photovoltaic glass in this embodiment along the lower mold 610. The specific direction of movement of the irregularly shaped photovoltaic glass is as follows: Figure 8 The feeding direction shown in the figure enables the feeding of irregularly shaped photovoltaic glass.

[0058] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An irregularly shaped photovoltaic glass, characterized in that, The system includes a plate (100) with an edge (200) on it. The edge (200) includes a first connecting plate (210) and a second connecting plate (220) connected in sequence. The first connecting plate (210) is connected to the plate (100). The first connecting plates (210) of the two edges (200) extend toward one side of the plate (100). A positioning cavity (300) is formed between the plate (100), the first connecting plate (210), and the second connecting plate (220). The angle between the first connecting plate (210) and the plate (100) is a right angle. The angle between the second connecting plate (220) and the first connecting plate (210) is a right angle or an acute angle. Alternatively, the first connecting plate (210) may be arc-shaped.

2. The irregularly shaped photovoltaic glass as described in claim 1, characterized in that, The plate (100) is rectangular, and the edging (200) is provided on a pair of adjacent or opposite sides of the plate (100).

3. The irregularly shaped photovoltaic glass as described in claim 2, characterized in that, The plate (100) has a raised or recessed structure in the middle.

4. A manufacturing equipment for irregularly shaped photovoltaic glass, characterized in that, The device is used to manufacture irregularly shaped photovoltaic glass according to any one of claims 1 to 3, comprising a rolling assembly (400), a cutting assembly (500), and a forming assembly (600), wherein the rolling assembly (400) is used to roll the glass melt into a glass strip (410) at a preset temperature, and the cutting assembly (500) is used to cut the glass strip (410) into a plurality of glass sheets; The forming component (600) includes a lower mold (610), an upper mold (620), a side mold (630), and a guide post (640). The upper mold (620) is slidably connected to the guide post (640), and the side mold (630) is used to form an edge banding (200) on the edge of the glass sheet.

5. The irregularly shaped photovoltaic glass manufacturing equipment as described in claim 4, characterized in that, The lower mold (610) is provided with a first mold cavity (611), and the upper mold (620) is provided with a second mold cavity (621). The first mold cavity (611) and the second mold cavity (621) cooperate with each other. The first mold cavity (611) and the second mold cavity (621) are used to roll and form a protruding structure or a recessed structure on the glass sheet.

6. The irregularly shaped photovoltaic glass manufacturing equipment as described in claim 5, characterized in that, The calendering assembly (400) has an annular protrusion or recess structure on the circumferential surface of the pressure roller.

7. The irregularly shaped photovoltaic glass manufacturing equipment as described in claim 5, characterized in that, Heating components are provided in the lower mold (610), upper mold (620), or side mold (630).

8. The irregularly shaped photovoltaic glass manufacturing equipment as described in claim 5, characterized in that, The feeding mechanism on the side mold (630) is equipped with a buffer spring (632).

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