Photovoltaic module coating apparatus

Abstract

The utility model discloses a kind of photovoltaic module laminating equipment, including equipment main body and the laminating frame being set on the upper side outside of equipment main body, the moving wheel being set at the position of lower side four corners of equipment main body, the inside of laminating frame is provided with conveyor belt, the right upper side outside of equipment main body is provided with controller, the upper side left and right ends of laminating frame are provided with connecting plate, the rear upper side of two described connecting plate is respectively provided with card frame, the top middle of two described card frame is provided with laminating material roller, the front lower side of two described connecting plate is provided with material roller, the front upper side of two described connecting plate is provided with tensioning roller, dynamic adjustment structure formed by elastic roller cooperation spring and the like component, can respond tension change in real time-material material relaxation, spring elastic force pulls elastic roller and tightens material material;When tension is too large, spring compression buffer tension, always control tensioning degree in appropriate range, ensure that laminating is flat, firm, greatly reduce the rate of defective product caused by tension problem.

Description

Technical Field

[0001] This utility model belongs to the technical field of photovoltaic module coating equipment, and specifically relates to a photovoltaic module coating equipment. Background Technology

[0002] Photovoltaic module coating equipment is a specialized device used to cover the surface of photovoltaic modules with protective or encapsulating films. Its main function is to protect photovoltaic modules and improve their performance and lifespan. During the photovoltaic module production process, this equipment precisely and efficiently covers the surface of the photovoltaic modules with specific films. For example, in the production of crystalline silicon photovoltaic modules, coating equipment is used to apply an encapsulating film with high light transmittance and weather resistance. This prevents the internal cells of the photovoltaic module from being corroded by external factors such as moisture, dust, and ultraviolet radiation, enhancing the module's sealing and stability, and ensuring that the photovoltaic module stably converts solar energy into electrical energy over a long period.

[0003] Traditional coating equipment lacks a dynamic tensioning structure for the coating material. The tension of the coating material is easily affected by factors such as changes in the diameter of the rollers and fluctuations in the conveying speed, resulting in either too loose or too tight tension. When the material is too loose, wrinkles and bubbles are easily formed during coating, affecting the appearance and sealing of the photovoltaic modules. When the material is too tight, it may cause the material to stretch, deform, or even break, resulting in material waste and production interruption. Utility Model Content

[0004] The purpose of this invention is to provide a photovoltaic module coating equipment to address the shortcomings of traditional coating equipment, which lacks a dynamic tensioning structure for the coating material. The tension of the coating material is easily affected by factors such as changes in roller diameter and fluctuations in conveying speed, resulting in either excessive looseness or excessive tightness. When the material is too loose, wrinkles and bubbles are easily formed during coating, affecting the appearance and sealing of the photovoltaic module. When the material is too tight, it may cause stretching deformation or even breakage, leading to material waste and production interruptions.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic module coating equipment, comprising a main body of the equipment, a coating frame disposed on the upper exterior of the main body of the equipment, and movable wheels disposed at the four corners of the lower exterior of the main body of the equipment; The inner side of the film-coating frame is provided with a conveyor belt, the upper right side of the main body of the equipment is provided with a controller, the upper left and right ends of the film-coating frame are provided with connecting plates, the upper rear sides of the two connecting plates are respectively provided with card holders, the top middle of the two card holders is provided with a film-coating roller, the lower front side of the two connecting plates is provided with a film-coating roller, and the upper front side of the two connecting plates is provided with a tensioning roller. A pressure plate is provided on the upper left front side of the film-coating frame, and the main body of the equipment is powered by an external power source. The upper sides of the two connecting plates are provided with slide rails. A fixing plate is fixed at the rear side of the connecting plates where the slide rails are located. A locking rod is provided through the inner side of each of the two slide rails. An elastic roller is provided in the middle of the locking rod. A retaining ring is provided at the two ends of the locking rod. A spring is provided at the connection between the retaining ring and the fixing plate.

[0006] Preferably, the lever is connected to the slide rail via a snap-fit ​​connection, and the lever can move back and forth within the slide rail.

[0007] Preferably, the elastic roller is connected to the clamping rod via a movable nesting connection, the elastic roller can rotate outside the clamping rod, and the retaining ring is connected to the clamping rod via a nesting connection.

[0008] Preferably, the two fixing plates are connected to the connecting plate by bolts, and the two ends of the spring are connected to the retaining ring and the fixing plate by bolts.

[0009] Preferably, a coating material is wound around the outer side of the coating roller, and the coating material is tensioned and passed around the tension roller, the elastic roller and the coating roller in sequence to form a continuous coating conveying path.

[0010] Preferably, a fixing frame is provided at the lower left and right sides of the front and rear ends of the film covering frame, and a cleaning roller is provided on the inner side of the middle of the two fixing frames at the same level, and the upper outer side of the cleaning roller is in close contact with the lower outer surface of the conveyor belt.

[0011] Compared with the prior art, the present invention provides a photovoltaic module coating device, which has the following beneficial effects: 1. In traditional coating equipment, the tension of the coating material is easily affected by factors such as changes in the diameter of the rollers and fluctuations in the conveyor speed, resulting in either too loose or too tight a fit. When the material is too loose, wrinkles and bubbles are easily formed during coating, affecting the appearance and sealing of the photovoltaic modules; when the material is too tight, it may cause the material to stretch, deform, or even break, resulting in material waste and production interruption. The dynamic adjustment structure formed by the elastic roller and springs can respond to tension changes in real time—when the material is loose, the spring force pulls the elastic roller to tighten the material; when the tension is too high, the spring compression buffers the tension, always keeping the tension within a suitable range, ensuring smooth and firm coating, and significantly reducing the defect rate caused by tension issues.

[0012] This equipment reduces production interruptions caused by manual intervention by eliminating the need for frequent manual shutdowns to adjust tension. The automatic reset function of the springs eliminates the need for additional power during the adjustment process. Despite its simple structure, it achieves highly efficient adaptive adjustment, enabling the equipment to operate stably for extended periods and increasing the coating output per unit time. This makes it suitable for mass production of large-scale photovoltaic modules.

[0013] In addition, the elastic roller adopts a movable nesting connection method, which can rotate freely with the material conveying, reducing the frictional resistance between the material and the roller body; at the same time, the smooth adjustment of tension prevents the material from being torn due to excessive instantaneous force, which is especially effective in protecting brittle or thin coated materials and reducing material loss costs.

[0014] 2. During long-term use, the conveyor belt easily accumulates dust, oil, debris, and other impurities on its surface. If not cleaned in time, these impurities will adhere to the back or edges of the photovoltaic modules, affecting the module's power generation efficiency (e.g., blocking sunlight), and may even cause problems such as bubbles or poor adhesion during lamination, reducing the module's sealing performance and lifespan. The cleaning roller, in close contact with the conveyor belt, can wipe away surface impurities in real time, avoiding the risk of contamination at the source and ensuring that the performance of the photovoltaic modules is not affected. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main body of the device in this utility model.

[0016] Figure 2 This is a schematic diagram of the main body of the device in this utility model from a side view.

[0017] Figure 3 This is a structural schematic diagram of the device body from the bottom view in this utility model.

[0018] Figure 4 In this utility model Figure 1 A schematic diagram of the structure of the central circular region.

[0019] Figure 5 This is a schematic diagram of the elastic roller structure in this utility model.

[0020] In the diagram: 1. Main body of the equipment; 2. Moving wheels; 3. Film coating frame; 4. Conveyor belt; 5. Controller; 6. Pressure plate; 7. Fixing frame; 8. Cleaning roller; 9. Clamping bracket; 10. Film coating roller; 11. Connecting plate; 12. Tensioning roller; 13. Film coating roller; 14. Elastic roller; 15. Slide rail; 16. Fixing plate; 17. Spring; 18. Clamping ring; 19. Clamping rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figure 1-5The photovoltaic module coating equipment shown includes a main body 1, a coating frame 3 disposed on the upper exterior of the main body 1, and moving wheels 2 disposed at the four corners of the lower side of the main body 1. A conveyor belt 4 is provided inside the film-coating frame 3. A controller 5 is provided on the upper right side of the main body 1. A connecting plate 11 is provided in the middle of the upper left and right ends of the film-coating frame 3. A bracket 9 is provided on the upper rear side of the two connecting plates 11 respectively. A film-coating roller 10 is provided in the middle of the top of the two brackets 9. A film-coating roller is provided on the lower front side of the two connecting plates 11. A tension roller 12 is provided on the upper front side of the two connecting plates 11. A pressure plate 6 is provided on the upper left front side of the film-coating frame 3. The main body 1 is powered by connecting to an external power source. The upper sides of the two connecting plates 11 are provided with slide rails 15. A fixing plate 16 is fixed at the rear side of the connecting plate 11 where the slide rails 15 are located. The inner sides of the two slide rails 15 are respectively provided with locking rods 19. An elastic roller 14 is provided in the middle of the locking rod 19. The two ends of the locking rod 19 are respectively provided with locking rings 18. A spring 17 is provided at the connection between the locking rings 18 and the fixing plate 16.

[0023] In this embodiment, a drive motor is installed inside the main body 1 to drive the conveyor belt 4 to rotate on the coating frame 3. Before using the photovoltaic module coating equipment, the user can first use the four casters 2 at the lower corners of the main body 1 to move the equipment to a suitable working position to ensure that the equipment is placed stably. Next, connect the external power supply to the main body 1 to power the equipment. Afterward, the operator sets parameters on the controller 5, such as the running speed of the conveyor belt 4 and coating-related operation commands.

[0024] Next, the photovoltaic module is placed on the conveyor belt 4, and the equipment is started. The conveyor belt 4 begins to operate, moving the photovoltaic module inward towards the coating rack 3. Simultaneously, the coating material roller 10, located between the tops of the two racks 9, releases the coating material. The coating material passes sequentially around the tension roller 12 and the coating roller 13, and under the action of the coating roller 13, the coating material covers the surface of the photovoltaic module. After the photovoltaic module is coated, it continues to be conveyed by the conveyor belt 4 to the pressure plate 6, where the pressure plate 6 holds the coated photovoltaic module for easy unloading by the user.

[0025] The main body 1 is the basic support structure of the entire equipment, providing a platform for the installation and operation of other components. The casters 2 facilitate the movement and position adjustment of the equipment, improving its flexibility. The laminating frame 3 supports and installs laminating-related components (such as the laminating roller 10, tension roller 12, laminating roller 13, etc.), forming the space for laminating operations.

[0026] The conveyor belt 4 is driven by a motor and uses friction to move the photovoltaic modules at a set speed, achieving continuous conveying of the photovoltaic modules and providing a stable material supply for subsequent coating and pressing processes. The controller 5, as the control core of the equipment, receives instructions from the operator and controls the operation of the conveyor belt 4, the feeding of the coating roller 10, and other actions to ensure coordinated operation of all components.

[0027] The coating roller 10 is used to store and release the coating material, while the tension roller 12 provides initial tension to the coating material, ensuring that it does not become too loose during transport. The coating roller 13 then accurately covers the surface of the photovoltaic module with the coating material as it passes by.

[0028] like Figure 1-5 As shown, the clamping rod 19 is connected to the slide rail 15 by a snap-fit ​​connection, and the clamping rod 19 can move back and forth within the slide rail 15. The elastic roller 14 is connected to the clamping rod 19 by a movable nesting connection, and the elastic roller 14 can rotate outside the clamping rod 19. The retaining ring 18 is connected to the clamping rod 19 by a nesting connection. The two fixing plates 16 are respectively connected to the connecting plate 11 by bolts. The spring 17 is connected to the retaining ring 18 and the fixing plate 16 at both ends by bolts. The film coating roller 13 has film coating material wound on the outside of the material roller. The film coating material is tensioned and passes around the tension roller 12, the elastic roller 14 and the film coating roller 13 in sequence to form a continuous film coating conveying path.

[0029] Preferably, during the lamination process, when the tension of the laminating material changes, for example, when the laminating material becomes slack, the elastic roller 14 moves forward under the action of the laminating material. At this time, the clamping rod 19 slides forward within the slide rail 15 along with the elastic roller 14, and the retaining ring 18 also moves forward accordingly. The spring 17 is stretched, generating elastic force. Due to the elastic force of the spring 17, the elastic roller 14 is driven to move backward through the retaining ring 18 and the clamping rod 19, thereby applying tension to the laminating material and restoring its tension.

[0030] When the tension of the coating material is too high, it will push the elastic roller 14 to move backward, the locking lever 19 will slide backward within the slide rail 15, and the retaining ring 18 will compress the spring 17. The reaction force generated by the spring 17 will prevent the elastic roller 14 from moving further backward, thereby relieving the tension of the coating material and preventing the coating material from breaking or being damaged due to excessive tension. Through such dynamic adjustment, the appropriate tension of the coating material is always maintained.

[0031] The slide rail 15 guides the movement of the clamping rod 19, ensuring that the clamping rod 19 can move back and forth along a fixed trajectory. The clamping rod 19 connects the elastic roller 14 and the retaining ring 18. The elastic roller 14 is fitted around the clamping rod 19 through a movable nesting connection, allowing it to rotate freely and ensuring that the coating material can be smoothly conveyed when passing through the elastic roller 14, reducing friction damage to the coating material.

[0032] The fixing plate 16 is fixed to the connecting plate 11, providing a fixed support point for the spring 17. The spring 17 is connected to the retaining ring 18 and the fixing plate 16 at both ends. When the retaining rod 19 moves the retaining ring 18, the spring 17 deforms, generating elastic force. This elastic force is transmitted to the elastic roller 14 through the retaining ring 18 and the retaining rod 19, causing the elastic roller 14 to generate continuous tension on the coated material.

[0033] During the lamination process, changes in the tension of the laminating material will cause the position of the elastic roller 14 to change, which in turn will cause the spring 17 to deform and generate a corresponding elastic force to adjust the tension of the laminating material. This achieves dynamic and automatic adjustment of the tension of the laminating material, ensuring the stability of the lamination process and the quality of the lamination.

[0034] like Figure 1-3 As shown, fixed frames 7 are respectively provided at the lower left and right sides of the front and rear ends of the film covering frame 3. A cleaning roller 8 is provided on the inner side of the middle of the two fixed frames 7 at the same level, and the upper outer side of the cleaning roller 8 is in close contact with the lower outer surface of the conveyor belt 4.

[0035] Preferably, during the process of conveying photovoltaic modules by the conveyor belt 4, the lower outer surface of the conveyor belt 4 is in continuous contact with the cleaning roller 8. The cleaning roller 8 wipes and cleans the dust, impurities, and other contaminants adhering to the surface of the conveyor belt 4 through its own rotation. As the equipment continues to operate, the cleaning roller 8 continuously cleans the conveyor belt 4, keeping the conveyor belt 4 clean.

[0036] If a lot of dirt accumulates on the surface of the cleaning roller 8 after a period of use, the cleaning roller 8 can be removed from the mounting bracket 7 for cleaning or replacement, and then reinstalled back into the mounting bracket 7 to ensure its cleaning effect.

[0037] The fixing frame 7 serves to fix and support the cleaning roller 8, stably installing the cleaning roller 8 on the lower left and right sides of the front and rear ends of the film covering frame 3, ensuring that the cleaning roller 8 can be in close contact with the lower outer surface of the conveyor belt 4.

[0038] The cleaning roller 8 is made of a material with adsorption and cleaning capabilities. When the conveyor belt 4 is running, friction is generated between its lower outer surface and the cleaning roller 8, causing the cleaning roller 8 to rotate synchronously. During rotation, the surface of the cleaning roller 8 is in full contact with the surface of the conveyor belt 4, which can adhere to or wipe away dust, impurities, etc. on the conveyor belt 4, preventing these contaminants from contaminating the photovoltaic modules or affecting the coating quality in subsequent processes, thereby ensuring the coating effect and product quality of the photovoltaic modules.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A photovoltaic module coating equipment, comprising a main body (1) and a coating frame (3) disposed on the upper outside of the main body (1), and movable wheels (2) disposed at the four corners of the lower side of the main body (1). The inner side of the film-coating frame (3) is provided with a conveyor belt (4), the upper right side of the main body of the equipment (1) is provided with a controller (5), the upper left and right sides of the film-coating frame (3) are provided with connecting plates (11), the upper rear sides of the two connecting plates (11) are respectively provided with card holders (9), the upper middle of the top of the two card holders (9) is provided with a film-coating roller (10), the lower front side of the two connecting plates (11) is provided with a film-coating roller, and the upper front side of the two connecting plates (11) is provided with a tensioning roller (12). The film-coating frame (3) is provided with a pressure plate (6) on the upper left front side, and the main body of the equipment (1) is powered by connecting to an external power source; Its features are: The upper sides of the two connecting plates (11) are provided with slide rails (15), and a fixing plate (16) is fixed at the rear side of the connecting plate (11) where the slide rails (15) are located. The inner sides of the two slide rails (15) are respectively provided with locking rods (19), and the middle outer side of the locking rods (19) is provided with elastic rollers (14). The two ends of the locking rods (19) are respectively provided with locking rings (18), and a spring (17) is provided at the connection between the locking rings (18) and the fixing plate (16).

2. The photovoltaic module coating equipment according to claim 1, characterized in that: The lever (19) is connected to the slide rail (15) by a snap-fit ​​connection, and the lever (19) can move back and forth within the slide rail (15).

3. The photovoltaic module coating equipment according to claim 2, characterized in that: The elastic roller (14) is connected to the clamp rod (19) by a movable nesting connection. The elastic roller (14) can rotate outside the clamp rod (19). The retaining ring (18) is connected to the clamp rod (19) by a nesting connection.

4. The photovoltaic module coating equipment according to claim 3, characterized in that: The two fixing plates (16) are connected to the connecting plate (11) by bolts, and the two ends of the spring (17) are connected to the retaining ring (18) and the fixing plate (16) by bolts.

5. A photovoltaic module coating equipment according to claim 4, characterized in that: The coating roller (13) has a coating material wound around its outer side. The coating material is tensioned and passes around the tension roller (12), the elastic roller (14) and the coating roller (13) in sequence to form a continuous coating conveying path.

6. A photovoltaic module coating equipment according to claim 5, characterized in that: The film-coating frame (3) has a fixing frame (7) at the bottom of the front and rear ends and the left and right sides respectively. The two fixing frames (7) at the same level have a cleaning roller (8) in the middle inner side, and the upper outer side of the cleaning roller (8) is in close contact with the lower outer surface of the conveyor belt (4).

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