A solar cell wafer texturing and drying device
Patent Information
- Application Number
- CN202521792199.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-08-21
AI Technical Summary
[0003]为了弥补现有技术的不足，针对由于炉罩与电池片之间的间距固定，导致热量流失严重，热能利用效率低下，增加了生产成本的问题，本实用新型提出一种太阳能电池片制绒干燥装置，通过调整炉罩与石英舟之间的间距，使炉罩底部的电热管更接近电池片，减少热量流失，热量能够更快地覆盖烘干腔室，提升热能利用效率，缩短烘干时间，降低能耗
本实用通过设置可调整的炉罩，通过调整炉罩与石英舟之间的间距，使炉罩底部的电热管更接近电池片，减少热量流失，热量能够更快地覆盖烘干腔室，提升热能利用效率，缩短烘干时间，降低能耗；
Smart Images
Figure CN224760573U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of solar panel production technology, specifically a solar cell texturing and drying device. Background Technology
[0002] The cell drying oven is a key piece of equipment for producing high-quality cells. It is mainly used in the drying and shaping process of solid electrolyte batteries, which determines the performance and energy density of the battery. In the cell manufacturing process, texturing usually uses chemical etching to form a pyramid-shaped textured surface on the silicon wafer. During the reaction, the chemical etching solution reacts with the silicon wafer surface to generate reaction products such as silicates. After the reaction is completed, chemical etching solution and reaction products remain on the silicon wafer surface. After texturing is completed, a large amount of moisture and chemical etching solution remain on the silicon wafer surface. In existing drying equipment, the fixed distance between the furnace hood and the solar cells leads to severe heat loss, low thermal energy utilization efficiency, and increased production costs. Existing drying equipment usually lacks effective airflow control, resulting in long drying time, low efficiency, and uneven drying, which affects the quality of the solar cells. When adjusting the height of the furnace hood, improper operation can easily cause the furnace hood to be pressed down excessively, damaging the solar cells inside the quartz boat and causing production accidents. Therefore, a solar cell texturing and drying device is proposed to address the above problems. Utility Model Content
[0003] To address the shortcomings of existing technologies and the problems of severe heat loss, low thermal efficiency, and increased production costs caused by the fixed distance between the furnace hood and the solar cells, this invention proposes a solar cell texturing and drying device. By adjusting the distance between the furnace hood and the quartz boat, the heating element at the bottom of the furnace hood is brought closer to the solar cells, reducing heat loss and allowing heat to cover the drying chamber more quickly, thereby improving thermal efficiency, shortening drying time, and reducing energy consumption.
[0004] The technical solution adopted by this utility model to solve its technical problem is a solar cell texturing and drying device, including a support frame and a furnace hood. The support frame has sliding grooves on both sides of the top side wall. The furnace hood is set above the support frame. Movable furnace walls are fixed on both sides of the bottom of the furnace hood. The movable furnace walls are movably set in the sliding grooves. A horizontally transparent drying chamber is formed by the furnace hood, the movable furnace walls on both sides and the support frame. The top side of the support frame is equipped with a support roller, which can lift the quartz boat. The inner top side wall of the furnace hood is equipped with an electric heating tube to dry the battery cells in the drying chamber. The furnace hood is fixed with slide bars on both sides, and a slider is slidably mounted on the slide bar. The slider has a screw hole, and a locking screw is rotatably installed in the screw hole. One end of the locking screw fits against the side of the slide bar, and the slider and slide bar can be relatively fixed by the locking screw. Multiple connecting plates are rotatably mounted on the side of the support frame via pins, and the top of the connecting plates is rotatably mounted on the side of the slider via pins. The multiple connecting plates are arranged in parallel. An angle plate is installed on the bottom side of the support frame, and a swing hole is opened in the angle plate. A swing connecting rod is fixed on the bottom side of one of the connecting plates, and a sliding hole is opened inside the swing connecting rod. A second locking screw is installed through the swing hole in the angle plate, and the second locking screw is installed through the sliding hole. A locking nut is rotatably installed at the end of the second locking screw. The threaded engagement between the locking nut and the screw locks the swing link and the angle plate during the tapping motion of the locking nut. This prevents relative displacement between the locked swing link and the angle plate, ensuring that the swing angle of the middle connecting plate remains unchanged and that the connecting plate can be stably fixed after swing adjustment. A washer is provided between the angle plate and the swing link. The washer is sleeved on the outside of the second locking screw. The washer can fill the gap between the opposite surfaces of the angle plate and the swing link. When locking, it can prevent the gap between the angle plate and the swing link from being too large and affecting the locking effect.
[0005] Preferably, a first fixing plate is fixed on the outer wall of the movable furnace wall, a warning light is installed on the top side of the first fixing plate, a positioning cylinder is fixed on the top side of the second fixing plate, a movable plate is movably installed inside the positioning cylinder, a sliding rod hole is provided in the vertical direction of the positioning cylinder, a sliding screw is movably installed in the sliding rod hole, one end of the sliding screw is fixed on the outer surface of the movable plate, and the lifting head is slidably installed at the port position of the positioning cylinder; Preferably, a spring is provided between the lifting head and the movable plate; conductive electrode plates are respectively provided on the bottom side of the lifting head and the top side of the movable plate; scale lines are provided on the outer surface of the positioning cylinder; by setting a warning structure, the movable plate can be pushed up and down in the positioning cylinder with the cooperation of the sliding screw by loosening the limiting nut; by comparing with the scale lines on the surface of the positioning cylinder, the distance between the lifting heads can be adjusted and a safe distance can be set. Preferably, the first fixing plate is set above the top of the lifting head, and the warning light, two conductive electrode plates and power supply are connected. By setting the warning structure, the warning light flashes when powered on, which can play a warning role and avoid damage to the quartz tube caused by the furnace hood being adjusted too low. At the same time, it can achieve a better heat preservation effect and provide sufficient flow space for the drying gas during the drying process, so as to achieve a better drying effect.
[0006] Preferably, the top side of the furnace hood is provided with an airflow hole, a fan is installed in the airflow hole, and a ventilation hood is installed on the airflow hole. The ventilation hood is connected in series through air ducts. Under the action of the fan, the purified gas is heated by the electric heating tube in the furnace hood and flows into the furnace. The hot gas is blown toward the quartz boat loaded with battery cells, which can accelerate the drying of the texturized battery cells.
[0007] Preferably, a thermometer is installed in the middle of the movable furnace wall, and a temperature display is installed in the middle of the bottom side of the support frame. The temperature display and the thermometer are connected by a signal line, which enables real-time monitoring of the temperature inside the furnace. During the drying process, the temperature will also change due to the uneven humidity in the drying chamber. After the temperature display shows that the temperature has stabilized, it indicates that the drying operation is complete, and the quartz boat carrying the battery cells can be taken out.
[0008] The advantages of this utility model are: This utility model features an adjustable furnace hood. By adjusting the distance between the furnace hood and the quartz boat, the heating element at the bottom of the furnace hood is brought closer to the solar cells, reducing heat loss and allowing heat to cover the drying chamber more quickly. This improves thermal efficiency, shortens drying time, and reduces energy consumption. The system is equipped with a warning structure and effective protective spacing. When the furnace hood is pressed down excessively, the lifting head is compressed, the conductive electrode plate comes into contact, and the warning light illuminates. This prevents the excessive pressure of the furnace hood from damaging the battery cells inside the quartz boat, avoids production accidents, and ensures the safety of equipment and products. Attached Figure Description
[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0010] Figure 1 This is a schematic diagram of the overall first-person perspective three-dimensional structure; Figure 2 This is a schematic diagram of the overall second-view three-dimensional structure; Figure 3 This is a schematic diagram of the overall top-down structure; Figure 4 for Figure 4 Schematic diagram of the structure in sectional view along the AA section; Figure 5 for Figure 1 Schematic diagram of the structure of region B along the middle edge; In the diagram: 1. Support frame, 2. Slide groove, 3. Movable furnace wall, 4. Support roller, 5. Furnace hood, 6. Ventilation hood, 7. Air duct, 8. Temperature display, 9. Connecting plate, 10. Thermometer, 11. Slide bar, 12. Slider, 13. Locking screw one, 14. Angle plate, 15. Washer ring, 16. Locking screw two, 17. Locking nut, 18. Swinging link, 19. Sliding hole, 20. Warning light, 21. Positioning cylinder, 22. Movable plate, 23. Sliding screw, 24. Limit nut, 25. Scale line, 26. Spring, 27. Lifting head, 28. First fixed plate, 29. Second fixed plate. Detailed Implementation
[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0012] Please see Figure 1-5 As shown, a solar cell texturing and drying device includes a support frame 1 and a furnace hood 5. The support frame 1 has sliding grooves 2 on both sides of its top sidewall. The furnace hood 5 is installed above the support frame 1. Movable furnace walls 3 are fixed on both sides of the bottom of the furnace hood 5. The movable furnace walls 3 are movably installed in the sliding grooves 2. The furnace hood 5, the movable furnace walls 3 on both sides, and the support frame 1 form a horizontally permeable drying chamber. The support frame 1 is equipped with a support roller 4 on its top side, which can lift the quartz boat. The furnace cover 5 is equipped with an electric heating tube on its inner top side wall, which helps to dry the battery cells in the drying chamber. The furnace hood 5 has slide bars 11 fixed on both sides. A slider 12 is slidably mounted on the slide bar 11. A screw hole is opened on the slider 12. A locking screw 13 is rotatably installed in the screw hole. One end of the locking screw 13 is in contact with the side of the slide bar 11. The relative fixation between the slider 12 and the slide bar 11 can be achieved by locking screw 13. Multiple connecting plates 9 are rotatably mounted on the side of the support frame 1 via pins, and the top of the connecting plates 9 are rotatably mounted on the side of the slider 12 via pins. The multiple connecting plates 12 are arranged in parallel. An angle plate 14 is installed on the bottom side of the support frame 1. A swing hole is opened in the angle plate 14. A swing connecting rod 18 is fixed on the bottom side of one of the connecting plates 9. A sliding hole 19 is opened inside the swing connecting rod 18. A second locking screw 16 is provided through the swing hole in the angle plate 14, and the second locking screw 16 is provided through the sliding hole 19. A locking nut 17 is rotatably installed at the end of the second locking screw 16. The threaded engagement between the locking nut 17 and the screw 16 locks the swing link 18 and the angle plate 14 during the tapping motion of the locking nut 17. This ensures that there is no relative displacement between the swing link 18 and the angle plate 14 after locking, thereby ensuring that the swing angle of the middle connecting plate 9 does not change and that the connecting plate 9 can be stably fixed after swing adjustment. A washer 15 is provided between the angle plate 14 and the swing link 18. The washer 15 is sleeved on the outside of the locking screw 16. The washer 15 can fill the gap between the opposite surfaces of the angle plate 14 and the swing link 18. When locking, it can prevent the gap between the angle plate 14 and the swing link 18 from being too large and affecting the locking effect.
[0013] When in use, after the cell texturing is completed, the texturized cell transfer code is placed in the quartz boat, and the quartz boat carrying the cell is transported to the baking position for drying. To improve the baking environment, by adjusting the distance between the oven cover 5 and the battery cells inside the quartz boat, the space between the oven cover 5 and the support frame 1 can be reduced, allowing the heat generated by the heating wire at the bottom of the oven cover 5 to cover the drying chamber more quickly, while reducing the loss of drying heat and improving the heat utilization rate. When adjusting the height of the furnace hood 5, by loosening the locking nut 17 on the locking screw 16, the locking screw 16 can slide along the swing hole in the angle plate 14, and at the same time drive the swing connecting rod 18 to swing, which can drive one of the connecting plates 9 to swing. When the connecting plate 9 swings, the vertical distance between the furnace hood 5 and the support frame 1 is reduced, and the movable furnace wall 3 slides down along the slide groove 2 in the support frame 1, thereby adjusting the distance between the furnace hood 5 and the quartz boat, changing the distance between the electric heating tube and the battery cell in the furnace hood 5, and adjusting the heating environment of the battery cell to help adjust the drying environment of the battery cell. In another embodiment, a first fixing plate 28 is fixed on the outer wall of the movable furnace wall 3. A warning light 20 is installed on the top side of the first fixing plate 28. A positioning cylinder 21 is fixed on the top side of the second fixing plate 29. A movable plate 22 is movably installed inside the positioning cylinder 21. The positioning cylinder 21 is provided with a sliding rod hole in the vertical direction. A sliding screw 23 is movably arranged in the sliding rod hole. One end of the sliding screw 23 is fixed on the outer surface of the movable plate 22. The lifting head 27 is slidably arranged at the port position of the positioning cylinder 21. A spring 26 is provided between the lifting head 27 and the movable plate 22. Conductive electrode plates are respectively provided on the bottom side of the lifting head 27 and the top side of the movable plate 22. A scale line 25 is provided on the outer surface of the positioning cylinder 21. The first fixing plate 28 is arranged above the top of the lifting head 27. The warning light 20, the two conductive electrode plates, and the power supply are connected. When using the equipment, in order to ensure the drying effect of the texturized battery cells during the drying process, the distance between the furnace hood 5 and the quartz boat is changed to change the drying heating distance and improve the heat utilization rate. At the same time, by adjusting the drying space, it is possible to avoid damage to the battery in the quartz boat located above the support roller 4 due to excessive downward pressure of the furnace hood 5 at the top of the furnace body during adjustment, while also leaving sufficient flow space for the internal hot air. By setting a warning structure and loosening the limiting nut 24, the movable plate 22 can be pushed to slide up and down inside the positioning cylinder 21 with the cooperation of the sliding screw 23. By comparing with the scale line 25 on the surface of the positioning cylinder 21, the distance between the lifting heads 27 can be adjusted to set a safe distance. When the furnace hood 5 is adjusted downward, the movable furnace walls 3 on both sides of the furnace hood 5 move downward synchronously, driving the first fixed plate 28 to move downward. During the downward movement of the first fixed plate 28, it will squeeze the lifting head 27, thereby compressing the spring 26. After compression, the conductive electrode plate at the bottom of the lifting head 27 contacts the conductive electrode plate on the top side of the movable plate 22, so that the warning light 20 is energized. When the warning light 20 is energized, it flashes, which can play a warning role and avoid damage to the quartz tube 4 due to the furnace hood 5 being adjusted too low. At the same time, it can achieve a better heat preservation effect and provide sufficient flow space for the drying gas during the drying process to achieve a better drying effect.
[0014] In another embodiment, an airflow hole is provided on the top side of the furnace hood 5, a fan is installed in the airflow hole, and a ventilation hood 6 is installed on the airflow hole. The ventilation hood 6 is connected in series through an air duct 7. With the help of the fan, the purified gas is heated by the electric heating tube inside the furnace hood 5 and flows into the furnace. The hot gas is blown toward the quartz boat loaded with battery cells, which accelerates the gas flow and speeds up the drying of the texturized battery cells. During the drying process, the speed of the fan is adjusted to different degrees at different heating stages by the control program to adapt to the drying process at different stages.
[0015] In another embodiment, a thermometer 10 is installed in the middle of the movable furnace wall 3, and a temperature display 8 is installed in the middle of the bottom side of the support frame 1. The temperature display 8 is connected to the thermometer 10 through a signal line, which can monitor the temperature inside the furnace in real time. During the drying process, the temperature will also change due to the uneven humidity in the drying chamber. After the temperature display 8 shows that the temperature is stable, it indicates that the drying operation is completed, and the quartz boat carrying the battery cells can be taken out after drying.
[0016] Working principle: After the cell texturing is completed, the texturized cells are transferred and placed in a quartz boat. The quartz boat carrying the cells is then transported to the baking position for drying. To improve the baking environment, by adjusting the distance between the oven cover 5 and the battery cells inside the quartz boat, the space between the oven cover 5 and the support frame 1 can be reduced, allowing the heat generated by the heating wire at the bottom of the oven cover 5 to cover the drying chamber more quickly, while reducing the loss of drying heat and improving the heat utilization rate. Under the action of the fan, the purified gas is heated by the electric heating tube in the furnace hood 5 and flows into the furnace. The hot gas is blown toward the quartz boat loaded with battery cells, which can accelerate the drying of the texturized battery cells. When adjusting the height of the furnace hood 5, by loosening the locking nut 17 on the locking screw 16, the locking screw 16 can slide along the swing hole in the angle plate 14, and at the same time drive the swing connecting rod 18 to swing, which can drive one of the connecting plates 9 to swing. When the connecting plate 9 swings, the vertical distance between the furnace hood 5 and the support frame 1 is reduced, and the movable furnace wall 3 slides down along the slide groove 2 in the support frame 1, thereby adjusting the distance between the furnace hood 5 and the quartz boat, changing the distance between the electric heating tube and the battery cell in the furnace hood 5, and adjusting the heating environment of the battery cell to help adjust the drying environment of the battery cell. When using the equipment, in order to ensure the drying effect of the texturized battery cells during the drying process, the distance between the furnace hood 5 and the quartz boat is changed to change the drying heating distance and improve the heat utilization rate. At the same time, by adjusting the drying space, it is possible to avoid damage to the battery in the quartz boat located above the support roller 4 due to excessive downward pressure of the furnace hood 5 at the top of the furnace body during adjustment, while also leaving sufficient flow space for the internal hot air. By setting a warning structure and loosening the limiting nut 24, the movable plate 22 can be pushed to slide up and down inside the positioning cylinder 21 with the cooperation of the sliding screw 23. By comparing with the scale line 25 on the surface of the positioning cylinder 21, the distance between the lifting heads 27 can be adjusted to set a safe distance. When the furnace hood 5 is adjusted downward, the movable furnace walls 3 on both sides of the furnace hood 5 move downward synchronously, driving the first fixed plate 28 to move downward. During the downward movement of the first fixed plate 28, it will squeeze the lifting head 27, thereby compressing the spring 26. After compression, the conductive electrode plate at the bottom of the lifting head 27 contacts the conductive electrode plate on the top side of the movable plate 22, so that the warning light 20 is energized. When the warning light 20 is energized, it flashes, which can play a warning role and avoid damage to the quartz tube 4 due to the furnace hood 5 being adjusted too low. At the same time, it can achieve a better heat preservation effect and provide sufficient flow space for the drying gas during the drying process to achieve a better drying effect.
[0017] In the description of this specification, the basic principles, main features and advantages of this utility model have been shown and described above. For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model shall fall within the scope of this utility model as claimed.
Claims
1. A solar cell texturing and drying apparatus, characterized in that: include: The support frame (1) and the furnace cover (5) are provided with sliding grooves (2) on both sides of the top side wall of the support frame (1), and the furnace cover (5) is provided above the support frame (1). Movable furnace walls (3) are fixed on both sides of the bottom of the furnace cover (5), and the movable furnace walls (3) are movably arranged in the sliding grooves (2). The furnace cover (5) is fixed with slide bars (11) on both sides. A slider (12) is slidably mounted on the slide bar (11). A screw hole is opened on the slider (12). A locking screw (13) is rotatably installed in the screw hole. One end of the locking screw (13) is in contact with the side of the slide bar (11). The side of the support frame (1) is rotatably mounted with multiple connecting plates (9) via pins, and the top of the connecting plates (9) is rotatably mounted on the side of the slider (12) via pins. The multiple connecting plates (9) are arranged in parallel. An angle plate (14) is installed on the bottom side of the support frame (1). A swing hole is provided in the angle plate (14). A swing connecting rod (18) is fixed on the bottom side of one of the connecting plates (9). A sliding hole (19) is provided inside the swing connecting rod (18). A locking screw 2 (16) is provided through the swing hole in the angle plate (14), and the locking screw 2 (16) is provided through the sliding hole (19). A locking nut (17) is installed at the end of the locking screw 2 (16) in a rotating manner. A washer (15) is provided between the angle plate (14) and the swing connecting rod (18), and the washer (15) is sleeved on the outside of the locking screw 2 (16).
2. The solar cell texturing and drying apparatus according to claim 1, characterized in that: The support frame (1) is equipped with a support roller (4) on its top side, and the furnace cover (5) is equipped with an electric heating tube on its inner top side wall.
3. The solar cell texturing and drying apparatus according to claim 2, characterized in that: A first fixing plate (28) is fixed on the outer side of the movable furnace wall (3). A warning light (20) is installed on the top side of the first fixing plate (28). A positioning cylinder (21) is fixed on the top side of the second fixing plate (29). A movable plate (22) is movably installed inside the positioning cylinder (21). A sliding rod hole is provided in the vertical direction of the positioning cylinder (21). A sliding screw (23) is movably installed in the sliding rod hole. One end of the sliding screw (23) is fixed on the outer side of the movable plate (22). A lifting head (27) is slidably installed at the port position of the positioning cylinder (21). A spring (26) is provided between the lifting head (27) and the movable plate (22).
4. The solar cell texturing and drying apparatus according to claim 3, characterized in that: The bottom side of the lifting head (27) and the top side of the movable plate (22) are respectively provided with conductive electrode plates, and the outer surface of the positioning cylinder (21) is provided with scale lines (25).
5. The solar cell texturing and drying apparatus according to claim 4, characterized in that: The first fixing plate (28) is set above the top of the lifting head (27), and the warning light (20), two conductive electrode plates and power supply are connected.
6. The solar cell texturing and drying apparatus according to claim 5, characterized in that: The top side of the furnace cover (5) is provided with an airflow hole, a fan is installed in the airflow hole, and a ventilation hood (6) is installed on the airflow hole. The ventilation hood (6) is connected in series through an air duct (7).
7. The solar cell texturing and drying apparatus according to claim 6, characterized in that: A thermometer (10) is installed in the middle of the movable furnace wall (3), and a temperature display (8) is installed in the middle of the bottom side of the support frame (1). The temperature display (8) and the thermometer (10) are connected by a signal line.