Film-coated solid carrier device

Abstract

The application belongs to the technical field of photovoltaic module manufacturing, and particularly relates to a film covering, pressing and fixing conveying device. The film covering, pressing and fixing conveying device comprises a lifting device and an adsorption and pressing device. The output end of the lifting device is provided with a horizontal moving device which is driven to move vertically and linearly. The horizontal moving device is connected with the adsorption and pressing device and drives the adsorption and pressing device to move horizontally and linearly. The adsorption and pressing device comprises an adsorption device and a pressing device. The adsorption device is located between the pressing devices and is used for adsorbing and conveying the battery piece with the film covering. The pressing device is used for pressing the battery piece with the film covering. The device solves the problem of unfirm film covering by pressing, reduces the film covering failure rate, reduces the waste of raw materials, and improves the performance and service life of the photovoltaic module.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module manufacturing, specifically a film-coated pressing and handling device. Background Technology

[0002] In the photovoltaic manufacturing industry, solar cells need to be coated with weather-resistant films (such as EVA and POE films) to isolate moisture and ultraviolet rays, protect the cell's grid lines and silicon substrate, and ensure power generation efficiency and lifespan. Currently, cell coating is completed using only a single hot-pressing process, without a subsequent dedicated pressing step. This leads to significant problems with weak coating adhesion: after the initial hot-pressing, due to the difference in thermal expansion coefficients between the cell and the film, internal forces can easily be generated during cooling, causing the coating to peel or delaminate. Furthermore, a single hot-pressing process cannot meet the local pressure requirements of cells of different thicknesses, often resulting in insufficient pressing at the edges. Uneven temperature also easily leads to incomplete curing of the adhesive, further reducing bonding stability. These problems result in a cell coating defect rate exceeding 8%, not only wasting raw materials such as silicon wafers and films but also causing rapid failure of cells during outdoor use, affecting the overall performance and lifespan of photovoltaic modules. Utility Model Content

[0003] To address the problems in existing technologies, this application provides a coating pressing and handling device. This device solves the problem of weak coating by secondary pressing, reducing the coating defect rate, minimizing raw material waste, and improving the performance and lifespan of photovoltaic modules.

[0004] The technical solution is as follows: A coating and pressing transport device, characterized in that it includes a lifting device and an adsorption and pressing device; the output end of the lifting device is provided with a horizontal moving device and drives the horizontal moving device to make vertical linear motion; the horizontal moving device is connected to the adsorption and pressing device, and the horizontal moving device drives the adsorption and pressing device to make horizontal linear motion; the adsorption and pressing device includes an adsorption device and a pressing device, the adsorption device is located between the pressing device for adsorbing and transporting the coated battery cells, and the pressing device performs a pressing operation on the coated battery cells.

[0005] Preferably, the adsorption and compaction device includes a connecting beam, and a compaction device is provided on the lower surface of the connecting beam. The compaction device is composed of compaction components, including single compaction components and double compaction components. The compaction components are distributed at intervals along the length direction of the connecting beam on the lower surface of the connecting beam. The single compaction components are installed at both ends of the connecting beam, and the double compaction components are arranged between the single compaction components.

[0006] Specifically, the clamping assembly includes a frame, the top of which is fixedly connected to the lower surface of the connecting beam; a telescopic rod is provided through the bottom of the frame in a vertical direction, the top of which is fixedly connected to the frame by a nut, and the bottom of which extends out of the frame and is fixedly provided with a clamping plate; a spring is also provided between the bottom of the frame and the upper surface of the clamping plate; a buffer pad is provided on the lower surface of the clamping plate, and the buffer pad is spaced apart along the length of the clamping plate.

[0007] Preferably, the dual-pressure assembly has a pair of pressure plates, and each pressure plate is respectively connected to a set of telescopic rods, springs and buffer pads, as well as the gaps on the buffer pads.

[0008] Specifically, an adsorption device is fixedly installed between two adjacent pressing components. The adsorption device includes a cylinder and an adsorption plate. The cylinder body is fixedly connected to the lower surface of the connecting beam. The output end of the cylinder is provided with a connector, and the bottom end of the connector is provided with an adsorption plate. When the cylinder is retracted, the lower surface of the adsorption plate is higher than the lower surface of the pressing plate. The lower surface of the adsorption plate is provided with a protective pad, and the lower surface of the adsorption plate is provided with several adsorption holes. The adsorption plate is provided with a quick connector.

[0009] Preferably, the lifting device includes a rectangular bracket, a fastening plate fixed to the top of the rectangular bracket for fixing the rectangular bracket, mounting plates fixed to both sides of the bottom of the rectangular bracket, the mounting plates extending outward along the length of the rectangular bracket, an electric cylinder on the mounting plate, guide columns on both sides of the electric cylinder, the guide columns passing through the mounting plate and the bottom end of the guide columns connected to the upper surface of the horizontal moving device, the output end of the electric cylinder passing through a preset mounting hole on the mounting plate and fixedly connected to a connecting block, and then connected to the upper surface of the horizontal moving device through the connecting block, the electric cylinder driving the horizontal moving device to move vertically in a straight line.

[0010] Specifically, the horizontal moving device includes a long plate, the upper surface of which is fixedly connected to the output end of the electric cylinder, and a linear module is provided on the lower surface of the long plate. The slide of the linear module is fixedly connected to the adsorption and pressing device through a connecting plate.

[0011] In summary, a coating and pressing transport device enables the adsorption, transport, and pressing of coated solar cells. This device includes a lifting device, a horizontal moving device, and an adsorption and pressing device. The lifting device drives the horizontal moving device and the adsorption and pressing device to move vertically, while the horizontal moving device drives the adsorption and pressing device to move horizontally. The adsorption and pressing device adsorbs the solar cells and performs the pressing operation after transport. Specifically, the adsorption and pressing device includes an adsorption device and a pressing device. The pressing device is equipped with a spring and a buffer pad. The spring can buffer the pressing force through elastic deformation, avoiding damage to the battery cells due to sudden pressure increases. The buffer pad reduces the hard contact between the pressing plate and the coating. The gaps in the buffer pad are used to accommodate the welding ribbon when pressing the battery cells, preventing the welding ribbon and battery cells from being damaged by compression deformation during pressing. The protective pad on the lower surface of the adsorption plate can prevent damage to the coating on the surface of the battery cells during adsorption. The lifting device includes a guide column, which can limit the horizontal movement device from deviating or tilting during lifting, ensuring the stability of the device operation. At the same time, it can share the radial force borne by the electric cylinder, reduce the wear of the electric cylinder, extend its service life, and indirectly improve the operation accuracy. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a film-coated pressing and conveying device according to the present invention; Figure 2 This is a schematic diagram of the structure of the pressing device and the adsorption device of this utility model; Figure 3 This is a schematic diagram of the structure of the single-compression assembly of this utility model; Figure 4 This is a schematic diagram of the structure of the dual-compression assembly of this utility model; Figure 5 This is a schematic diagram of the lifting device of this utility model; Figure 6 This is a schematic diagram of the structure of the horizontal moving device of this utility model.

[0013] Reference numerals: 1. Compression device; 101. Single compression assembly; 1011. Frame; 1012. Nut; 1013. Telescopic rod; 1014. Spring; 1015. Compression plate; 1016. Buffer pad; 1017. Gap; 102. Double compression assembly; 2. Adsorption device; 201. Cylinder; 202. Connector; 203. Quick connector; 204. Adsorption plate; 205. Protective pad; 3. Lifting device; 301. Rectangular bracket; 302. Fastening plate; 303. Electric cylinder; 304. Mounting plate; 305. Guide column; 306. Connecting block; 4. Horizontal moving device; 401. Long plate; 402. Linear module; 403. Connecting plate; 5. Connecting beam. Detailed Implementation

[0014] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0015] like Figure 1 As shown, this utility model is mainly used for pressing and transporting coated battery cells. It includes a lifting device 3, with a horizontal moving device 4 at its output end. The lifting device 3 drives the horizontal moving device 4 to move vertically. The moving end of the horizontal moving device 4 is equipped with an adsorption and pressing device, which in turn drives the adsorption and pressing device to move horizontally. The process is as follows: The horizontal moving device 4 starts and drives the adsorption and pressing device to move horizontally to directly above the battery cell transport area. The adsorption and pressing device then forms a stable grip on the battery cell to prevent it from falling off or shifting during transport. Then, the horizontal moving device 4 starts again, driving the adsorption and pressing device to move horizontally to the pressing area. Upon arrival, the adsorption and pressing device releases its adsorption force, allowing the battery cell to be placed stably at the pressing station. The lifting device 3 then drives the adsorption and pressing device to perform the pressing operation on the battery cell. The lifting device 3 rises and resets. The pressed battery cell is then transferred to the next working station via a subsequent conveying mechanism.

[0016] like Figure 2 As shown, the adsorption and compression device includes an adsorption device 2 and a compression device 1, and also includes a connecting beam 5. A plurality of compression devices 1 are provided on the lower surface of the connecting beam 5. Each compression device 1 is composed of compression components, including single compression components 101 and double compression components 102. The compression components are spaced apart along the length of the connecting beam 5 on its lower surface. Single compression components 101 are located at both ends of the lower surface of the connecting beam 5, and double compression components 102 are located between the single compression components 101. The reason for this arrangement is that when the solar cells are arranged sequentially along the length of the connecting beam 5, the edge areas of 1-2 solar cells will be covered between two adjacent clamping components. If the clamping component is a double clamping component 102, it can be aligned with the left and right sides of the adjacent solar cells respectively, achieving efficient clamping by "one clamping component covering the edges of two solar cells". The clamping components at both ends of the connecting beam 5 only need to cover one side of the outermost solar cell. For example, the clamping component at the left end of the connecting beam 5 only needs to cover the left side of the leftmost solar cell. There are no other solar cells on the right side, so there is no need for a double clamping plate structure. Only a single clamping component 101 is needed to meet the clamping requirements on one side.

[0017] like Figure 3 and Figure 4As shown, the clamping assembly includes a frame 1011. The top of the frame 1011 is fixedly connected to the lower surface of the connecting beam 5. A telescopic rod 1013 is vertically inserted through the bottom of the frame 1011. The top of the telescopic rod 1013 is fixedly connected to the frame 1011 by a nut 1012. The bottom of the telescopic rod 1013 extends out of the frame 1011 and is fixedly fitted with a clamping plate 1015. A spring 1014 is also provided between the top of the clamping plate 1015 and the bottom of the frame 1011. When the clamping plate 1015 contacts the battery cell and applies clamping force, the spring 1014 can absorb part of the pressure through its own elastic deformation, playing a buffering role and preventing damage to the battery cell or coating due to a sudden increase in pressure. The lower surface of the pressing plate 1015 is also provided with a rubber buffer pad 1016, which can buffer the pressing force, reduce the hard contact between the pressing plate 1015 and the coating, and prevent the coating surface from being scratched during the pressing process. The buffer pad 1016 is provided with a number of strip gaps 1017 spaced apart along the length of the pressing plate 1015. The position and size of these gaps 1017 are precisely corresponding to the position of the solder strip on the battery cell. During the pressing process, the solder strip is located within the gap 1017, which effectively prevents the solder strip and the battery cell from deforming or breaking due to compression during the pressing process. The clamping assembly includes a single clamping assembly 101 and a double clamping assembly 102. The single clamping assembly 101 includes a frame 1011. A telescopic rod 1013 is vertically inserted through the bottom of the frame 1011. The top of the telescopic rod 1013 is fixedly connected to the frame 1011 by a nut 1012. The bottom of the telescopic rod 1013 extends out of the frame 1011 and is connected to a clamping plate 1015. A spring 1014 is also provided between the frame 1011 and the clamping plate 1015. A buffer pad 1016 is provided on the lower surface of the clamping plate 1015, and a gap 1017 is opened on the buffer pad. The dual-pressure assembly 102 includes an additional pressure plate 1015 arranged side-by-side along the length of the frame 1011. To optimize the spatial layout of the frame 1011, the two nuts 1012 are installed at diagonally opposite positions at the bottom of the frame 1011. This diagonal arrangement significantly reduces the width of the frame 1011. Compared to the nuts 1012 being installed side-by-side, the diagonal arrangement avoids widening the frame 1011 to accommodate two parallel nuts 1012, thus saving the lateral space required for connecting the frame 1011 to the connecting beam 5. With the reduced width of the frame 1011, the connecting beam 5 can connect more pressure assemblies, thereby increasing the number of battery cells that can be pressure-pressed in a single operation and improving operational efficiency. Simultaneously, the increased space utilization also reduces material consumption and lowers costs.

[0018] like Figure 2As shown, an adsorption device 2 is provided between adjacent pressing components. The adsorption device 2 includes a cylinder 201. The cylinder body of the cylinder 201 is fixedly connected to the lower surface of the connecting beam 5. A connector 202 is provided at the output end of the cylinder 201, and an adsorption disk 204 is fixedly provided at the bottom end of the connector 202. In the initial state, the cylinder 201 is in a retracted state before activation, and its output end is not extended outward, driving the connector 202 and the adsorption disk 204 to the highest position. At this time, the lower surface height of the adsorption disk 204 is significantly higher than the lower surface height of the pressing plate 1015 in the pressing device 1. The connector 202 has a certain height, which can compensate for the insufficient maximum stroke distance of the output end of the cylinder 201, ensuring that the adsorption disk 204 can adsorb the battery cell. The connector 202 and the adsorption disk 204 have a wide contact surface, and the larger contact surface can improve the connection stability between the adsorption disk 204 and the connector 202. The lower surface of the adsorption plate 204 is provided with adsorption holes, which are connected to the vacuum generator through quick connector 203 and hose. When the vacuum generator is started, a negative pressure is formed in the suction tube, which in turn causes the adsorption holes to generate adsorption force, thereby achieving tight adsorption of the battery cells. A layer of rubber protective pad 205 is also fixedly attached to the lower surface of the adsorption plate 204 to avoid hard contact between the adsorption plate 204 and the battery cells, effectively preventing damage to the surface of the battery cells due to pressure during adsorption.

[0019] like Figure 5 As shown, the lifting device 3 includes a rectangular support 301. Three fastening plates 302 are spaced apart at the top of the rectangular support 301, and the fastening plates 302 are used to fix the rectangular support 301 together with expansion bolts. Mounting plates 304 are symmetrically arranged on both sides of the bottom of the rectangular support 301, extending along the length of the rectangular support 301. An electric cylinder 303 is mounted on the mounting plate 304. The electric cylinder 303 is a modular product integrating a servo motor and a lead screw, converting the rotational motion of the servo motor into linear motion. The output end of the electric cylinder 303 passes through a pre-set mounting hole on the mounting plate 304 and is fixedly connected to a connecting block 306. The connecting block 306 then fixes the electric cylinder to the upper surface of the horizontal moving device 4. The connecting block 306 increases the contact area with the upper surface of the horizontal moving device 4, making the connection more secure. To prevent the horizontal moving device 4 from shifting or tilting during lifting and lowering, two symmetrical guide posts 305 are provided on the mounting plates 304 on both sides of each electric cylinder 303. The guide posts 305 pass through the mounting plates 304 and their bottom ends are connected to the upper surface of the horizontal moving device 4. The linear movement of the guide posts 305 guides the horizontal moving device 4 to ensure that it always lifts and lowers smoothly in the vertical direction.

[0020] like Figure 6As shown, the horizontal moving device 4 includes a long plate 401. The upper surface of the long plate 401 is fixedly connected to the output end of the electric cylinder 303 of the lifting device 3 via a connecting block 306. The lower surface of the long plate 401 is provided with a linear module 402. The linear module 402 is an automated motion unit composed of components such as linear guides and ball screws. The slide of the linear module 402 is connected to the connecting beam 5 of the adsorption and pressing device via a connecting plate 403, which can improve the stability of the connection.

[0021] A working process of a coating and pressing transport device: The horizontal moving device 4 is activated, driving the adsorption and pressing device to move horizontally along the length of the guide rail until the adsorption and pressing device precisely reaches directly above the area where the battery cell is to be adsorbed; the cylinder 201 of the adsorption device 2 is activated, and the output end of the cylinder 201 drives the connecting piece 202 and the adsorption plate 204 to move downwards synchronously, so that the rubber protective pad 205 on the lower surface of the adsorption plate 204 completely adheres to the upper surface of the battery cell; the vacuum device is activated, delivering negative pressure to the adsorption holes of the adsorption plate 204 through the suction tube and quick connector 203, causing the adsorption holes to generate a stable adsorption force, firmly adsorbing the battery cell; the horizontal moving device 4 is activated again, driving the adsorption and pressing device to move along the guide rail, transporting the battery cell directly above the area where the battery cell is to be pressed; the vacuum device stops working, and the adsorption holes... With the force removed, the battery cell is placed stably on the conveyor line that transports the battery cell to the next station. Subsequently, the cylinder 201 of the adsorption device 2 is activated, driving the adsorption plate 204 to move upward and reset, avoiding interference with subsequent pressing actions. The lifting device 3 is activated, and its electric cylinder 303 output drives the horizontal moving device 4 to move downward synchronously with the adsorption and pressing device until the pressing device 1 in the adsorption and pressing device contacts the battery cell. The pressing device 1 continues to apply downward pressure, and the spring 1014 is compressed and undergoes elastic deformation, causing the buffer pad 1016 to adhere to the coating surface, completing the coating and pressing of the battery cell. The electric cylinder 303 of the lifting device 3 is activated, and its output drives the adsorption and pressing device and the horizontal moving device 4 to move upward and reset as a whole, and the pressing device 1 disengages from the battery cell. The pressed battery cell is then transported to the next station.

[0022] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the specific embodiments described herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not described herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.

[0023] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A film-coated pressing and conveying device, characterized in that, The device includes a lifting device (3) and an adsorption and pressing device. The output end of the lifting device (3) is provided with a horizontal moving device (4) and drives the horizontal moving device (4) to make vertical linear motion. The horizontal moving device (4) is connected to the adsorption and pressing device and drives the adsorption and pressing device to make horizontal linear motion. The adsorption and pressing device includes an adsorption device (2) and a pressing device (1). The adsorption device (2) is located between the pressing device (1) and is used to adsorb and transport the coated battery cells. The pressing device (1) performs a pressing operation on the coated battery cells.

2. The film-coated pressing and conveying device according to claim 1, characterized in that, The adsorption and compaction device includes a connecting beam (5), and a compaction device (1) is provided on the lower surface of the connecting beam (5). The compaction device (1) is composed of compaction components, which include a single compaction component (101) and a double compaction component (102). The compaction components are distributed at intervals along the length direction of the connecting beam (5) on the lower surface of the connecting beam (5). The single compaction component (101) is installed at both ends of the connecting beam (5), and the double compaction component (102) is disposed between the single compaction components (101).

3. The film-coated pressing and conveying device according to claim 2, characterized in that, The clamping assembly includes a frame (1011), the top of which is fixedly connected to the lower surface of the connecting beam (5); a telescopic rod (1013) is provided through the bottom of the frame (1011) in a vertical direction, the top of which is fixedly connected to the frame (1011) by a nut (1012), and the bottom of which extends out of the frame (1011) and is fixedly provided with a clamping plate (1015); a spring (1014) is also provided between the bottom of the frame (1011) and the upper surface of the clamping plate (1015); a buffer pad (1016) is provided on the lower surface of the clamping plate (1015), and the buffer pad (1016) is spaced apart by gaps (1017) along the length of the clamping plate (1015).

4. The film-coated pressing and conveying device according to claim 3, characterized in that, The dual-pressure assembly (102) is provided with a pair of pressure plates (1015), and each pressure plate (1015) is respectively connected to a set of telescopic rods (1013), springs (1014) and buffer pads (1016), as well as a gap (1017) on the buffer pads (1016).

5. The film-coated pressing and conveying device according to claim 3, characterized in that, An adsorption device (2) is fixedly installed between two adjacent pressing components. The adsorption device (2) includes a cylinder (201) and an adsorption plate (204). The cylinder body of the cylinder (201) is fixedly connected to the lower surface of the connecting beam (5). The output end of the cylinder (201) is provided with a connector (202). The bottom end of the connector (202) is provided with an adsorption plate (204). When the cylinder (201) is retracted, the lower surface of the adsorption plate (204) is higher than the lower surface of the pressing plate (1015). The lower surface of the adsorption plate (204) is provided with a protective pad (205), and the lower surface of the adsorption plate (204) is provided with several adsorption holes. The adsorption plate (204) is provided with a quick connector (203).

6. The film-coated pressing and conveying device according to claim 1, characterized in that, The lifting device (3) includes a rectangular bracket (301). A fastening plate (302) is fixedly provided at the top of the rectangular bracket (301) for fixing the rectangular bracket (301). Mounting plates (304) are fixedly provided on both sides of the bottom of the rectangular bracket (301). The mounting plates (304) extend outward along the length direction of the rectangular bracket (301). An electric cylinder (303) is provided on the mounting plate (304). Guide columns (305) are provided on both sides of the electric cylinder (303). The guide columns (305) pass through the mounting plate (304) and the bottom end of the guide columns (305) is connected to the upper surface of the horizontal moving device (4). The output end of the electric cylinder (303) passes through the preset mounting hole on the mounting plate (304) and is fixedly connected to the connecting block (306). Then, it is connected to the upper surface of the horizontal moving device (4) through the connecting block (306). The electric cylinder (303) drives the horizontal moving device (4) to move vertically.

7. The film-coated pressing and conveying device according to claim 6, characterized in that, The horizontal moving device (4) includes a long plate (401), the upper surface of which is fixedly connected to the output end of the electric cylinder (303), and the lower surface of the long plate (401) is provided with a linear module (402). The slide of the linear module (402) is fixedly connected to the adsorption and pressing device through a connecting plate (403).

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