Battery sheet roll film device

Abstract

The application belongs to the technical field of photovoltaic module manufacturing, and particularly relates to a cell piece film rolling device. The cell piece film rolling device comprises a film rolling mechanism and a driving mechanism. The driving mechanism is located on a support, the driving mechanism is provided with the film rolling mechanism, the driving mechanism drives the film rolling mechanism to perform horizontal linear motion, the film rolling mechanism comprises a servo driving assembly, an elastic assembly, a roller support and a roller, the output end of the servo driving assembly is provided with the elastic assembly, the bottom end of the elastic assembly is fixed to the upper surface of the roller support, and the roller support is provided with the roller, and the servo driving assembly drives the roller to perform vertical motion. The cell piece film rolling device solves the bubble problem in the film covering process, improves the production efficiency, and solves the deficiencies of traditional film covering equipment in precision, stability and reliability.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module manufacturing, specifically to a cell rolling device. Background Technology

[0002] In the production of photovoltaic cells, the coating process is a crucial step affecting module performance. However, existing coating equipment commonly suffers from air bubble problems, severely impacting product quality and production efficiency. Due to insufficient stability of the motion mechanism and lack of effective buffering protection, existing coating equipment employs a rigid contact method and a single guiding structure, resulting in incomplete adhesion between the film and the cell. This leads to air trapping and the formation of air bubbles, affecting not only the module's aesthetic appearance but also significantly reducing photoelectric conversion efficiency. To address this issue, this invention proposes a cell rolling film device. Utility Model Content

[0003] To address the problems in the prior art, this application provides a cell roll film device that can ensure film coating quality while also having reasonable cost and production efficiency.

[0004] The technical solution is as follows: The cell rolling device includes a rolling mechanism and a drive mechanism; the drive mechanism is located on a support, and the rolling mechanism is mounted on the drive mechanism, which drives the rolling mechanism to perform horizontal linear motion; the rolling mechanism includes a servo drive component, an elastic component, a roller support, and a roller; the output end of the servo drive component is equipped with an elastic component, the bottom end of which is fixed to the upper surface of the roller support, and rollers are mounted between the roller supports; the servo drive component drives the roller to perform vertical up-down motion.

[0005] Preferably, the servo drive assembly includes a servo motor, a lead screw, and a slider A; the output end of the servo motor is connected to the lead screw, the lead screw is provided with slider A, and a protective sleeve is provided on the outside of the lead screw.

[0006] Specifically, the rolling mechanism also includes a pressing plate, which is fixedly connected to the slider A; a support plate is fixedly installed below the pressing plate, and the elastic component is located on the support plate.

[0007] Preferably, the rolling mechanism further includes a guiding mechanism; the guiding mechanism is symmetrically installed on the outside of the protective sleeve, and the guiding mechanism contains guide posts inside, the ends of the guide posts are fixedly connected to both ends of the upper surface of the pressing plate, and the guide posts are parallel to the protective sleeve.

[0008] Specifically, the elastic component runs vertically through both ends of the support plate, and both ends of the support plate are equipped with connectors to fix the elastic component.

[0009] Preferably, the roller support has a U-shaped structure, including parallel columns, with crossbeams connecting the columns, and chamfers at the ends of the columns.

[0010] Specifically, the drive mechanism includes a mounting plate, a cylinder, a slide rail, and a slider B; the mounting plate is fixedly mounted on the bracket, and the cylinder is located at one end of the mounting plate; the slide rail is arranged parallel to the mounting plate; and the slider B is set on the slide rail.

[0011] Preferably, a triangular steel plate is added to the right-angle connection part of the bracket.

[0012] In summary: the servo drive component of the rolling film mechanism drives the rollers to move vertically up and down, while the drive mechanism drives the rolling film mechanism to move horizontally back and forth. Through the coordinated control of the combined motion of horizontal movement and vertical pressing, high-precision, bubble-free coating of the film material and battery cells is achieved. Specifically, a servo motor drives the lead screw, achieving high-precision motion control and improving coating quality; the elastic component provides initial contact buffer protection, and the generated reaction force ensures a tight fit between the rollers and the coating film, guaranteeing coating quality; the guiding mechanism ensures the stability of vertical movement through the parallel arrangement of guide columns and protective sleeves; the drive mechanism uses a combination of cylinders and slide rails to achieve horizontal positioning; the symmetrical roller support, combined with the bidirectional fixed elastic component, makes the coating pressure distribution more uniform; and the addition of triangular steel plates to key parts of the support effectively improves the overall structural stability and vibration resistance, extending the service life of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the battery cell rolling film device of this utility model; Figure 2 This is a schematic diagram of the rolling film mechanism of this utility model.

[0014] Reference numerals: 1. Drive mechanism; 101. Slide rail; 102. Slider B; 103. Mounting plate; 2. Rolling mechanism; 201. Servo motor; 202. Slider A; 203. Pressing plate; 204. Guide mechanism; 205. Guide column; 206. Support plate; 207. Elastic component; 208. Roller bracket; 209. Column; 210. Roller; 211. Protective sleeve; 3. Bracket; 4. Connecting plate; 5. Triangular steel plate. Detailed Implementation

[0015] 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.

[0016] With the continuous increase in the power density of photovoltaic modules, the encapsulation process of solar cells has placed more stringent technical requirements on the flatness and adhesion of the coating quality. This invention relates to a solar cell rolling film device, which, through an optimized mechanical structure and motion control system, achieves uniform pressing of the coating film on the surface of the solar cell, ensuring that the encapsulation interface is free of bubbles and wrinkles, meeting the process quality requirements. The specific technical implementation scheme of this device is as follows: like Figure 1 As shown: The solar cell rolling device includes a support frame 3, a rolling mechanism 2, and a drive mechanism 1. The drive mechanism 1 is mounted on the support frame 3, and the rolling mechanism 2 is mounted on the drive mechanism 1 via a connecting plate 4. The support frame 3 uses three rectangular steel pipes as the main load-bearing components, forming a stable frame through two vertical support columns and a horizontal connecting beam. An equilateral triangular steel plate 5 is installed at the vertical splicing nodes to enhance the stability of the support frame 3.

[0017] The drive mechanism 1 includes a mounting plate 103, a cylinder, a slide rail 101, and a slider B102. The mounting plate 103 is fixedly installed on the horizontal connecting beam. The linear slide rail 101 is symmetrically arranged on the surface of the mounting plate 103 in the horizontal direction. The slider B102 is mounted on the slide rail 101. The cylinder is fixed to one side of the mounting plate 103, and the end of the piston rod is connected to the slider B102.

[0018] like Figure 2 The rolling film mechanism 2 includes a servo motor 201, a roller 210, a lead screw, a slider A202, a pressing plate 203, an elastic component 207, a support plate 206, a roller bracket 208, a protective sleeve 211, and a guide mechanism 204. The components are connected in the following structural sequence: the output end of the servo motor 201 is directly connected to the lead screw, driving it to rotate; a slider A202 is mounted on the lead screw, and the slider A202 is fixedly connected to the center of the pressing plate 203; a stainless steel protective sleeve 211 is installed outside the lead screw, providing both dustproof and safety protection; guide mechanisms 204 are symmetrically installed on both sides of the protective sleeve 211, and each guide mechanism 204 contains guide posts 205; the ends of the guide posts 205 are fixedly connected to both ends of the upper surface of the pressing plate 203; the guide posts 205 are parallel to the protective sleeve 211, ensuring that the pressing plate 203 moves vertically without swaying.

[0019] A vertically fixed support plate 206 is positioned below the pressing plate 203. An elastic component 207 is mounted on the support plate 206. The elastic component 207 vertically penetrates both ends of the support plate 206, and connectors for fixing the elastic component 207 are installed at both ends of the support plate 206. The connectors are nuts installed on the upper and lower ends. The support plate 206 is connected to the upper end of the elastic component 207, and the lower end of the elastic component 207 is fixedly connected to both ends of the upper surface of the roller support 208. The roller support 208 adopts a U-shaped symmetrical structure, consisting of two parallel columns 209 horizontally connected to the top. Two parallel rollers 210 are horizontally installed between the roller supports 208, allowing simultaneous rolling of two battery cells, improving work efficiency. The rollers 210 are horizontally installed near the coating position of the two columns 209 via bearing assemblies. The bearing assemblies include deep groove ball bearings and roller shafts. A roller shaft is installed in the middle of roller 210, and deep groove ball bearings are installed at both ends of the roller shaft. The roller shaft and the inner ring of the deep groove ball bearings are interference-fitted, and the outer ring of the deep groove ball bearings is connected and fixed to the column 209 of the roller support 208. This bearing structure features low rotational resistance and long service life, making it suitable for continuous rolling. The contact surface between the outer edge of roller 210 and the coating material is lower than the horizontal line at the end of the column 209, and the bottom ends of the two columns 209 are chamfered to prevent the ends of the columns 209 from scratching the coating surface during the rolling operation. This mechanism drives the lead screw to rotate via servo motor 201, which in turn drives the slider A202 and the pressing plate 203 to move vertically as a whole. The elastic component 207 buffers mechanical impact to prevent damage to the coating material; at the same time, the reaction force generated by the compression of the elastic component 207 ensures that roller 210 and the coating material are tightly fitted together, ensuring process quality.

[0020] Once the solar cell is precisely positioned to its working position via the conveyor belt, the servo motor 201 starts, driving the lead screw to rotate precisely. The slider A202 moves smoothly downwards in the vertical direction, causing the pressing plate 203 to descend. During this process, the guide post 205 of the guide mechanism 204 effectively constrains the motion trajectory, ensuring vertical motion stability. When the roller 210 contacts the surface of the solar cell, the elastic buffer component starts working, effectively absorbing the initial contact impact and generating a reaction force through compression, causing the roller 210 to tightly adhere to the coating surface. Then, the drive mechanism 1 starts, driving the entire rolling mechanism 2 to perform horizontal reciprocating motion along the linear guide rail. The synchronous rolling of the two rollers 210 achieves uniform pressing of the coating, ensuring a perfect, bubble-free, and wrinkle-free bonding between the film and the solar cell.

[0021] This invention provides a high-precision solar cell coating device, which effectively improves the quality of solar cell coating process through optimized mechanical structure and motion control system design. The device mainly consists of three parts: a support 3, a drive mechanism 1, and a coating mechanism 2. The support 3 uses a rectangular steel tube frame with triangular steel plates 5 to ensure stability. The drive mechanism 1 achieves horizontal movement through cylinders and slide rails 101. The coating mechanism 2 integrates a servo motor 201, a lead screw, double rollers 210, and an elastic component 207. The servo motor 201 controls the lead screw to drive the pressing plate 203 vertically, with a guide mechanism 204 ensuring motion accuracy. The elastic component 207 provides buffering and bonding. During operation, the device first presses vertically downwards to make the rollers 210 contact the solar cell. The elastic component 207 buffers the impact and provides pressure, and then moves horizontally to complete the coating. This design uses double rollers 210 for synchronous pressing to improve efficiency, and the elastic component 207 works in conjunction with the servo system to achieve smooth pressing. The overall structure optimization avoids damage to the film material, ensuring that the coating is bubble-free and wrinkle-free, meeting high-quality encapsulation requirements.

[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 cell rolling film device, comprising a support (3), characterized in that, It also includes a rolling film mechanism (2) and a drive mechanism (1); the drive mechanism (1) is located on the bracket (3), and the rolling film mechanism (2) is provided on the drive mechanism (1). The drive mechanism (1) drives the rolling film mechanism (2) to perform horizontal linear motion; the rolling film mechanism includes a servo drive component, an elastic component (207), a roller bracket (208), and a roller (210); the output end of the servo drive component is provided with an elastic component (207), the bottom end of the elastic component (207) is fixed to the upper surface of the roller bracket (208), and the roller (210) is provided between the roller brackets (208); the servo drive component drives the roller (210) to perform vertical up-down motion.

2. The cell rolling film device according to claim 1, characterized in that, The servo drive assembly includes a servo motor (201), a lead screw, and a slider A (202); the output end of the servo motor (201) is connected to the lead screw, the slider A (202) is provided on the lead screw, and a protective sleeve (211) is provided on the outside of the lead screw.

3. The cell rolling film device according to claim 2, characterized in that, The rolling film mechanism (2) further includes a pressing plate (203), which is fixedly connected to the slider A (202); a support plate (206) is fixedly installed below the pressing plate (203), and the elastic component (207) is disposed on the support plate (206).

4. The cell rolling device according to claim 3, characterized in that, The rolling film mechanism (2) further includes a guide mechanism (204); the guide mechanism (204) is symmetrically installed on the outside of the protective sleeve (211), and the guide mechanism (204) contains a guide post (205). The end of the guide post (205) is fixedly connected to both ends of the upper surface of the pressing plate (203), and the guide post (205) is parallel to the protective sleeve (211).

5. The cell rolling film apparatus according to claim 3, characterized in that, The elastic component (207) extends vertically through both ends of the support plate (206), and both ends of the support plate (206) are provided with connectors to fix the elastic component (207).

6. The cell rolling film apparatus according to claim 1, characterized in that, The roller support (208) has a U-shaped structure. The roller support (208) includes parallel columns (209), and a crossbeam is connected between the columns (209). The ends of the columns (209) are chamfered.

7. The cell rolling film apparatus according to claim 1, characterized in that, The drive mechanism (1) includes a mounting plate (103), a cylinder, a slide rail (101), and a slider B (102); the mounting plate (103) is fixedly mounted on the bracket (3), and the cylinder is located at one end of the mounting plate (103); the slide rail (101) is arranged parallel to the mounting plate (103); and the slider B (102) is arranged on the slide rail (101).

8. The cell rolling film apparatus according to claim 1, characterized in that, A triangular steel plate (5) is added to the right-angle connection part of the bracket (3).

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