A sun cell efficiency improving transmission structure against deviation and long-term uv radiation

Abstract

This utility model belongs to the field of solar cell processing technology and discloses a solar cell efficiency-enhancing transmission structure for preventing deviation and resisting long-term UV irradiation. It includes a body, with a transmission mechanism embedded in the top of the body. Anti-deviation mechanisms are symmetrically arranged on both sides of the top of the body near the transmission mechanism. Each anti-deviation mechanism includes a mounting frame, a guide plate, a guide rod, a fixed rod, a linkage rod, a moving rod, and a threaded rod. The mounting frame is fixed to both ends of the top of the body. This utility model incorporates an anti-deviation mechanism, which guides and restricts the solar cells on both sides through the guide plate, thereby preventing the solar cells from deviating on the conveyor belt. This allows the solar cells to smoothly enter and exit the UV light source device. Furthermore, the distance between the guide plates on both sides of the solar cell is adjustable, facilitating the guidance and limiting of solar cells of different widths.

Description

Technical Field

[0001] This utility model belongs to the field of solar cell processing technology, specifically relating to a transmission structure for enhancing the efficiency of solar cells by preventing deviation and resisting long-term UV irradiation. Background Technology

[0002] Against the backdrop of rapid development in photovoltaic technology, crystalline silicon solar cells, as mainstream photovoltaic devices, have seen performance improvements become a research hotspot. Crystalline silicon solar cells include silicon heterojunction (SHJ) solar cells, tunneling oxide passivated contact (TOPCon) solar cells, and passivated emitter and back contact (PERC) solar cells. The surface passivation layer of crystalline silicon solar cells, as one of the key factors in improving cell performance, has a development history closely linked to the development of crystalline silicon solar cells themselves.

[0003] In the existing technology, solar cells are transported to the UV light source device by a conveyor belt and then irradiated with UV light to improve the passivation level of the solar cell interface, thereby improving the photoelectric conversion efficiency of the solar cells. However, the existing conveyor belt transmission does not have an anti-offset structure, which cannot prevent the solar cells from being offset on the conveyor belt, thus causing the solar cells to be unable to smoothly enter and exit the UV light source device. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a transmission structure for enhancing the efficiency of solar cells by preventing misalignment and resisting long-term UV radiation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a transmission structure for enhancing the efficiency of solar cells by preventing displacement and resisting long-term UV radiation, comprising a body, a transmission mechanism embedded in the top of the body, and anti-displacement mechanisms symmetrically arranged on both sides of the top of the body near the transmission mechanism. Each anti-displacement mechanism includes a mounting frame, a guide plate, a guide rod, a fixed rod, a linkage rod, a moving rod, and a threaded rod. The mounting frame is fixed to both ends of the top of the body. The guide rod passes through the mounting frame and connects to the guide plate. The fixed rod is installed on the side of the mounting frame away from the guide plate. The middle part of the linkage rod is hinged to the fixed rod, and both ends of the linkage rod are respectively connected to the guide rod and the moving rod. One end of the moving rod passes through the mounting frame, and the other end is rotatably connected to the threaded rod. The threaded rod passes through the mounting frame and is threadedly connected to the mounting frame.

[0006] Preferably, the linkage rod has a V-shaped structure.

[0007] Preferably, the guide plates on the two anti-deviation mechanisms move in opposite directions.

[0008] Preferably, the transmission mechanism includes a first transmission roller, a second transmission roller, and a conveyor belt. The first and second transmission rollers are rotatably connected to the machine body, and the conveyor belt is sleeved on the outside of the first and second transmission rollers.

[0009] Preferably, the conveyor belt is a carbon steel mesh belt, and the conveyor belt is coated with a high-temperature resistant ceramic coating.

[0010] Preferably, the upper end of the machine body is symmetrically provided with infeed and outfeed guide frames on both sides, and the top surface of the guide wheel on the infeed and outfeed guide frame is on the same straight line as the top surface of the conveyor belt. Solar cells are placed on the infeed and outfeed guide frame near the starting end of the conveyor belt.

[0011] Preferably, a UV light source device is connected to the top of the machine body. The UV light source device includes a housing and a UV lamp, and the UV lamp is installed inside the housing.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The present invention is provided with an anti-deviation mechanism. The guide plate of the anti-deviation mechanism guides and restricts the two sides of the solar cell, thereby preventing the solar cell from deviating on the conveyor belt, so that the solar cell can smoothly enter and exit the UV light source device. The distance between the guide plates on both sides of the solar cell is adjustable, which is convenient for guiding and limiting solar cells of different widths.

[0014] (2) The conveyor belt of this utility model is made of carbon steel mesh belt, and the carbon steel mesh belt is also coated with a high temperature resistant ceramic coating. The carbon steel mesh belt is not easily degraded by UV. At the same time, the high temperature resistant ceramic coating forms a physical barrier on the surface of the carbon steel mesh belt to isolate UV and corrosive media, so that the conveyor belt is both UV resistant and oxidation resistant. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an assembly drawing of the anti-deviation mechanism and the main body of this utility model;

[0017] Figure 3 This is a schematic diagram of the anti-deviation mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the transmission mechanism of this utility model;

[0019] In the diagram: 1. Machine body; 2. Transmission mechanism; 21. First conveyor roller; 22. Second conveyor roller; 23. Conveyor belt; 3. Anti-deviation mechanism; 31. Mounting frame; 32. Guide plate; 33. Guide rod; 34. Fixed rod; 35. Linkage rod; 36. Moving rod; 37. Threaded rod; 4. Infeed / outfeed guide frame; 5. UV light source device; 6. Solar cell. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a transmission structure for enhancing the efficiency of solar cells by preventing displacement and resisting long-term UV radiation, including a body 1. A transmission mechanism 2 is embedded in the top of the body 1, and anti-displacement mechanisms 3 are symmetrically arranged on both sides of the top of the body 1 near the transmission mechanism 2. The anti-displacement mechanism 3 includes a mounting frame 31, a guide plate 32, a guide rod 33, a fixing rod 34, a linkage rod 35, a moving rod 36, and a threaded rod 37. The mounting frame 31 is fixed to both ends of the top of the body 1, and the guide rod 33 passes through the mounting frame 31. Connected to the guide plate 32, the fixed rod 34 is installed on the side of the mounting frame 31 away from the guide plate 32. The middle part of the linkage rod 35 is hinged to the fixed rod 34, and the two ends of the linkage rod 35 are respectively connected to the guide rod 33 and the moving rod 36. The linkage rod 35 has a V-shaped structure, which facilitates the conversion of the movement of the moving rod 36 into the movement of the guide rod 33 and the guide plate 32. One end of the moving rod 36 passes through the mounting frame 31, and the other end is rotatably connected to the threaded rod 37. The threaded rod 37 passes through the mounting frame 31 and is threadedly connected to the mounting frame 31.

[0022] like Figure 4 As shown, the transmission mechanism 2 includes a first transmission roller 21, a second transmission roller 22, and a conveyor belt 23. The first transmission roller 21 and the second transmission roller 22 are rotatably connected to the machine body 1. The first transmission roller 21 and the second transmission roller 22 are metal rollers, and the exterior of the first transmission roller 21 and the second transmission roller 22 are also coated with a high-temperature resistant ceramic coating. The conveyor belt 23 is sleeved on the exterior of the first transmission roller 21 and the second transmission roller 22. The conveyor belt 23 is a carbon steel mesh belt, and the conveyor belt 23 is coated with a high-temperature resistant ceramic coating. The carbon steel mesh belt is not easily degraded by UV. At the same time, the high-temperature resistant ceramic coating forms a physical barrier on the surface of the carbon steel mesh belt to isolate UV and corrosive media, thereby making the conveyor belt 23 both UV resistant and oxidation resistant.

[0023] The transmission mechanism 2 also includes a drive motor (not shown in the figure), which drives the first conveyor roller 21 to rotate, thereby driving the conveyor belt 23 to move the solar cell 6 in and out of the UV light source device 5.

[0024] The upper ends of the machine body 1 are symmetrically provided with infeed and discharge guide frames 4, and the top surface of the guide wheel on the infeed and discharge guide frame 4 is on the same straight line as the top surface of the conveyor belt 23. The solar cell 6 is placed on the infeed and discharge guide frame 4 near the starting end of the conveyor belt 23. The infeed and discharge guide frame 4 supports the solar cell 6 that has been upgraded and upgraded, which is beneficial for loading and unloading the UV light source device 5.

[0025] The top of the unit 1 is connected to a UV light source device 5, which includes a housing and a UV lamp. The UV lamp is installed inside the housing and irradiates the solar cell 6 through the operation of the UV lamp, thereby achieving the efficiency enhancement treatment of the solar cell 6.

[0026] like Figure 2 As shown, the guide plates 32 on the two anti-deviation mechanisms 3 move in opposite directions, thereby adjusting the distance between the guide plates 32 on the two anti-deviation mechanisms 3, and then guiding and limiting the solar cell 6 through the guide plates 32.

[0027] The working principle and usage process of this utility model are as follows: In use, the solar cell 6 is placed on the feed guide frame 4 near the starting end of the conveyor belt 23, and one end of the solar cell 6 is inserted into the UV light source device 5 and contacts the starting end of the conveyor belt 23. The drive motor rotates the first conveyor roller 21, which in turn drives the conveyor belt 23, thus moving the solar cell 6 along the length of the UV light source device 5. At this time, the solar cell 6 is irradiated by the short-to-medium light emitted by the UV lamp inside the UV light source device 5. This short-to-medium light can break the free Si-H and Al-OH states in the solar cell 6 and passivate the dangling bonds on the silicon surface using H, thereby improving the passivation level of the solar cell 6 interface and thus increasing the photoelectric conversion efficiency of the solar cell 6. Simultaneously, during the transmission process… During the process, the guide plate 32 guides and restricts both sides of the solar cell 6, thereby preventing the solar cell 6 from deviating on the conveyor belt 23, and allowing the solar cell 6 to smoothly enter and exit the UV light source device 5. In addition, by rotating the threaded rod 37, the threaded rod 37 is threadedly connected to the mounting bracket 31, and the circular motion is converted into linear motion, thereby driving the moving rod 36 to move in the direction of extending out of the mounting bracket 31. Then, the movement of the moving rod 36 drives one end of the linkage rod 35 to move synchronously, thereby driving the other end of the linkage rod 35 to push the guide rod 33 to move closer to the solar cell 6, and then driving the guide plate 32 to move closer to the solar cell 6. This allows for adjustment of the distance between the guide plates 32 on the two anti-deviation mechanisms 3, which is convenient for guiding and limiting solar cells 6 of different widths.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sun cell efficiency enhancing transmission structure against deviation and long-term UV radiation, comprising a body (1), characterized in that, A transmission mechanism (2) is embedded in the top of the body (1), and anti-deviation mechanisms (3) are symmetrically arranged on both sides of the top of the body (1) near the transmission mechanism (2). The anti-deviation mechanism (3) includes a mounting bracket (31), a guide plate (32), a guide rod (33), a fixing rod (34), a linkage rod (35), a moving rod (36), and a threaded rod (37). The mounting bracket (31) is fixed to both ends of the top of the body (1), and the guide rod (33) passes through the mounting bracket (31). The fixed rod (34) is connected to the guide plate (32) and installed on the side of the mounting frame (31) away from the guide plate (32). The middle part of the linkage rod (35) is hinged to the fixed rod (34), and the two ends of the linkage rod (35) are respectively connected to the guide rod (33) and the moving rod (36). One end of the moving rod (36) passes through the mounting frame (31), and the other end is rotatably connected to the threaded rod (37). The threaded rod (37) passes through the mounting frame (31) and is threadedly connected to the mounting frame (31).

2. A transport structure for solar cells to prevent deviation and resist long-term UV radiation according to claim 1, characterized in that: The linkage rod (35) has a V-shaped structure.

3. The anti-wandering and long-term UV radiation resistant solar cell efficiency enhancing transport structure of claim 1, wherein: The guide plates (32) of the two anti-deviation mechanisms (3) move in opposite directions.

4. The anti-wandering and long-term UV radiation resistant solar cell efficiency enhancing transport structure of claim 1, wherein: The transmission mechanism (2) includes a first transmission roller (21), a second transmission roller (22) and a conveyor belt (23). The first transmission roller (21) and the second transmission roller (22) are rotatably connected to the machine body (1). The conveyor belt (23) is sleeved on the outside of the first transmission roller (21) and the second transmission roller (22).

5. A transport structure for solar cell efficiency enhancement against misalignment and long term UV irradiation as claimed in claim 4, wherein: The conveyor belt (23) is a carbon steel mesh belt, and the conveyor belt (23) is coated with a high-temperature resistant ceramic coating.

6. A transport structure for solar cell efficiency enhancement against misalignment and long term UV irradiation as claimed in claim 4, wherein: The upper sides of the machine body (1) are symmetrically provided with infeed and discharge guide frames (4), and the top surface of the guide wheel on the infeed and discharge guide frame (4) is on the same straight line as the top surface of the conveyor belt (23). Solar cells (6) are placed on the infeed and discharge guide frame (4) near the starting end of the conveyor belt (23).

7. The anti- drift and long-term UV radiation resistant solar cell efficiency enhancing transport structure of claim 1, wherein: The top of the body (1) is connected to a UV light source device (5), which includes a housing and a UV lamp, and the UV lamp is installed inside the housing.

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