Roller way type solar cell irradiation annealing furnace

Abstract

The utility model discloses a roller way type solar cell irradiation annealing furnace, which relates to the technical field of solar cell annealing, and adopts the technical scheme that the roller way type solar cell irradiation annealing furnace comprises a base, a conveying component is arranged in the base, an annealing furnace main body is fixedly arranged at the top of the base, and a limiting component is arranged in the annealing furnace main body; the roller way type solar cell irradiation annealing furnace has the beneficial effects that the double-shaft reciprocating screw rod rotates to drive the two movable plates to relatively linearly move back and forth, the movable plates move to drive the limiting plates to move, and the irradiation lamp tubes and the heating rods are fixedly arranged in the annealing furnace main body; therefore, the limiting plates on the two sides continuously open and close, the solar cells conveyed on the conveying belt are pushed to the center area of the conveying belt, the situation that the solar cells are not limited on the conveying belt and incline or fall off in the conveying process is prevented, and the conveying stability of the solar cells in the irradiation annealing process is ensured.

Description

Technical Field

[0001] This utility model relates to the field of solar cell annealing technology, specifically to a roller conveyor solar cell irradiation annealing furnace. Background Technology

[0002] Typically, solar cells are sintered in a chain sintering furnace and then made into modules for use in solar power plants. Due to the presence of boron-oxygen pairs, solar cells experience efficiency degradation under long-term sunlight exposure during use, especially the PERC cells that have emerged in recent years, where this degradation is particularly severe. Studies have shown that pre-treating the cells with a specific light source under certain temperature conditions through irradiation annealing can effectively prevent this degradation phenomenon.

[0003] Existing annealing furnaces for solar cell irradiation mostly transport solar cells via conveyor belts. However, the lack of restraint on the conveyor belts makes it easy for solar cells to tilt or fall during transport, affecting the irradiation annealing of the solar cells. Utility Model Content

[0004] To address this issue, this invention provides a roller conveyor solar cell irradiation annealing furnace. By cooperating with the conveying components and the limiting components, it solves the problem that solar cells lack restraint on the conveyor belt, making them prone to tilting or falling during transport, which affects the irradiation annealing of solar cells.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a roller conveyor type solar cell irradiation annealing furnace, comprising a base, a conveying assembly inside the base, an annealing furnace body fixedly mounted on the top of the base, a limiting assembly inside the annealing furnace body, and multiple irradiation lamps and heating rods fixedly mounted inside the annealing furnace body. The conveying assembly includes two conveying rollers, a conveyor belt sleeved around the two conveying rollers, and the two conveying rollers are connected by a drive via the conveyor belt. Multiple limiting strips are fixedly mounted around the conveyor belt. The limiting assembly includes a dual-axis reciprocating screw, with limiting rods on both sides of the dual-axis reciprocating screw. Two movable plates are sleeved around the dual-axis reciprocating screw, and multiple limiting plates are fixedly mounted at the bottom of each of the two movable plates.

[0006] Preferably, a servo motor is fixedly installed inside the base, and the output end of the servo motor is fixedly connected to one end of one of the conveyor rollers.

[0007] Preferably, the conveying roller passes through both sides of the base and is connected to both sides of the base via bearings.

[0008] Preferably, a positive generator is fixedly installed on one side of the annealing furnace body, and the output end of the positive generator is fixedly connected to one end of a dual-shaft reciprocating lead screw.

[0009] Preferably, the dual-axis reciprocating lead screw passes through both side walls of the annealing furnace body and is connected to both side walls of the annealing furnace body via bearings, and the threads at both ends of the dual-axis reciprocating lead screw rotate in opposite directions.

[0010] Preferably, the limiting rod is located inside the annealing furnace body and is fixedly connected to the annealing furnace body.

[0011] Preferably, the movable plate is sleeved outside the dual-axis reciprocating lead screw and is threadedly connected to the dual-axis reciprocating lead screw, and the movable plate is sleeved outside the limiting rod and is slidably connected to the limiting rod.

[0012] The present invention has the following advantages:

[0013] 1. The conveyor belt is driven to rotate by the conveyor roller. The rotation of the conveyor belt pushes the solar cells into the annealing furnace body through the limit bar. The solar cells are irradiated and annealed by the cooperation of the irradiation lamp tube and the heating rod, which is convenient for the staff to operate.

[0014] 2. The rotation of the dual-axis reciprocating screw drives two movable plates to move back and forth in a straight line. The movement of the movable plates drives the movement of the limiting plates, thereby causing the limiting plates on both sides to continuously open and close. This pushes the solar cells conveyed on the conveyor belt to the center area of ​​the conveyor belt, preventing the solar cells from being unrestrained on the conveyor belt and from tilting or falling during the conveying process. This ensures the stability of the conveying process during the irradiation annealing of solar cells. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 A schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial sectional perspective view of the right side of the present invention.

[0019] Figure 3 Partial sectional perspective view provided for this utility model;

[0020] Figure 4 Exploded perspective view of the conveying component provided by this utility model;

[0021] Figure 5 An exploded perspective view of the limiting component provided by this utility model.

[0022] In the diagram: 1. Base, 2. Conveying assembly, 21. Conveying roller, 22. Servo motor, 23. Conveyor belt, 24. Limiting bar, 3. Annealing furnace body, 4. Limiting assembly, 41. Dual-axis reciprocating screw, 42. Positive generator, 43. Limiting rod, 44. Movable plate, 45. Limiting plate, 5. Irradiation lamp, 6. Heating rod. Detailed Implementation

[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] See attached document Figure 1 -Appendix Figure 5 The present invention provides a roller-type solar cell irradiation annealing furnace, including a base 1, a conveying assembly 2 inside the base 1, an annealing furnace body 3 fixedly mounted on the top of the base 1, a limiting assembly 4 inside the annealing furnace body 3, and multiple irradiation lamps 5 and heating rods 6 fixedly mounted inside the annealing furnace body 3. The conveying assembly 2 includes two conveying rollers 21, and a conveyor belt 23 is sleeved on the outside of the two conveying rollers 21. The two conveying rollers 21 are driven and connected by the conveyor belt 23. Multiple limiting strips 24 are fixedly mounted on the outside of the conveyor belt 23. The limiting assembly 4 includes a double-axis reciprocating screw 41, with limiting rods 43 on both sides of the double-axis reciprocating screw 41. Two movable plates 44 are sleeved on the outside of the double-axis reciprocating screw 41, and multiple limiting plates 45 are fixedly mounted on the bottom of the two movable plates 44.

[0025] In this implementation scheme, to prevent the solar cells from tilting and falling during the transport of solar cells on the conveyor belt 23, the conveyor roller 21 drives the conveyor belt 23 to rotate. The rotation of the conveyor belt 23 pushes the solar cells into the annealing furnace body 3 through the limiting strip 24. The solar cells are irradiated and annealed by the cooperation of the irradiation lamp tube 5 and the heating rod 6, which facilitates the operation of the staff. The rotation of the double-axis reciprocating screw 41 drives the two movable plates 44 to move back and forth in a straight line. The movement of the movable plates 44 drives the limiting plates 45 to move, so that the limiting plates 45 on both sides continuously open and close, thereby pushing the solar cells transported on the conveyor belt 23 to the center area of ​​the conveyor belt 23. This prevents the solar cells from being tilted or falling during transport due to lack of restraint on the conveyor belt, and ensures the stability of the transport of solar cells during irradiation and annealing.

[0026] In order to provide power for the rotation of the conveyor belt 23, the device adopts the following technical solution: a servo motor 22 is fixedly installed inside the base 1. The output end of the servo motor 22 is fixedly connected to one end of one of the conveyor rollers 21. The conveyor roller 21 passes through the two side walls of the base 1 and is connected to the two side walls of the base 1 through bearings. The solar panel is placed on top of the conveyor belt 23 and between the limiting strips 24. The servo motor 22 is started. The rotation of the servo motor 22 drives the conveyor belt 23 to rotate through the conveyor roller 21. The rotation of the conveyor belt 23 pushes the solar panel into the annealing furnace body 3 through the limiting strips 24.

[0027] To provide power for the continuous opening and closing of the limiting plate 45, the device employs the following technical solution: A positive generator 42 is fixedly installed on one side of the annealing furnace body 3. The output end of the positive generator 42 is fixedly connected to one end of a double-shaft reciprocating screw 41. The double-shaft reciprocating screw 41 passes through both side walls of the annealing furnace body 3 and is connected to both side walls of the annealing furnace body 3 via bearings. The threads at both ends of the double-shaft reciprocating screw 41 rotate in opposite directions. A limiting rod 43 is located inside the annealing furnace body 3 and is fixedly connected to the annealing furnace body 3. A set of movable plates 44... Located outside the dual-axis reciprocating lead screw 41 and connected to it by threads, the movable plate 44 is sleeved outside the limiting rod 43 and slidably connected to it. When the positive generator 42 rotates, it drives the dual-axis reciprocating lead screw 41 to rotate. The rotation of the dual-axis reciprocating lead screw 41 drives the two movable plates 44 to move back and forth in a straight line relative to each other. The movement of the movable plates 44 drives the limiting plates 45 to move, thereby causing the limiting plates 45 on both sides to continuously open and close, thus pushing the solar cells conveyed on the conveyor belt 23 to the center area of ​​the conveyor belt 23.

[0028] The usage process of this utility model is as follows: When using this utility model, connect an external power source and start the irradiation lamp 5 and heating rod 6. When irradiation annealing of the solar cell is required, place the solar panel on top of the conveyor belt 23 and between the limiting bars 24. Start the servo motor 22 and the positive generator 42. The rotation of the servo motor 22 drives the conveyor belt 23 to rotate through the conveyor roller 21. The rotation of the conveyor belt 23 pushes the solar cell into the annealing furnace body 3 through the limiting bars 24. The solar cell is irradiated and annealed by the cooperation of the irradiation lamp 5 and the heating rod 6, which is convenient for the operator. At the same time, when the positive generator 42 rotates, it drives the double-axis reciprocating screw 41 to rotate. The rotation of the double-axis reciprocating screw 41 drives the two movable plates 44 to move back and forth in a straight line. The movement of the movable plates 44 drives the limiting plates 45 to move, so that the limiting plates 45 on both sides continuously open and close, thereby pushing the solar cell conveyed on the conveyor belt 23 to the center area of ​​the conveyor belt 23. This prevents the solar cell from being tilted or falling off the conveyor belt due to lack of restraint, and ensures the stability of the solar cell during irradiation annealing.

[0029] The above are merely preferred embodiments of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A roller-type solar cell irradiation annealing furnace, comprising a base (1), characterized in that: The base (1) is provided with a conveying assembly (2) inside. The annealing furnace body (3) is fixedly provided on the top of the base (1). The annealing furnace body (3) is provided with a limiting assembly (4) inside. Multiple irradiation lamps (5) and heating rods (6) are fixedly provided inside the annealing furnace body (3). The conveying assembly (2) includes two conveying rollers (21). A conveyor belt (23) is sleeved on the outside of the two conveying rollers (21). The two conveying rollers (21) are connected by the conveyor belt (23). Multiple limiting strips (24) are fixedly provided on the outside of the conveyor belt (23). The limiting assembly (4) includes a double-axis reciprocating screw (41). Limiting rods (43) are provided on both sides of the double-axis reciprocating screw (41). Two movable plates (44) are sleeved on the outside of the double-axis reciprocating screw (41). Multiple limiting plates (45) are fixedly provided at the bottom of the two movable plates (44).

2. The roller conveyor solar cell irradiation annealing furnace according to claim 1, characterized in that: A servo motor (22) is fixedly installed inside the base (1), and the output end of the servo motor (22) is fixedly connected to one end of one of the conveyor rollers (21).

3. The roller conveyor solar cell irradiation annealing furnace according to claim 1, characterized in that: The conveyor roller (21) passes through both sides of the base (1) and is connected to both sides of the base (1) via bearings.

4. The roller conveyor solar cell irradiation annealing furnace according to claim 1, characterized in that: A positive generator (42) is fixedly installed on one side of the annealing furnace body (3), and the output end of the positive generator (42) is fixedly connected to one end of the double-shaft reciprocating screw (41).

5. A roller-type solar cell irradiation annealing furnace according to claim 1, characterized in that: The dual-axis reciprocating screw (41) passes through both sides of the annealing furnace body (3) and is connected to both sides of the annealing furnace body (3) via bearings. The threads at both ends of the dual-axis reciprocating screw (41) rotate in opposite directions.

6. The roller conveyor solar cell irradiation annealing furnace according to claim 1, characterized in that: The limiting rod (43) is located inside the annealing furnace body (3) and is fixedly connected to the annealing furnace body (3).

7. A roller-type solar cell irradiation annealing furnace according to claim 1, characterized in that: The movable plate (44) is sleeved on the outside of the double-axis reciprocating screw (41) and is threadedly connected to the double-axis reciprocating screw (41). The movable plate (44) is sleeved on the outside of the limiting rod (43) and is slidably connected to the limiting rod (43).

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