A graphite sleeve assembly for sensors that prevents selenium from sticking

Abstract

The present invention discloses a sensor graphite sleeve assembly that prevents selenium from sticking. The assembly comprises a sleeve mounting seat fixed to the side wall of a solar cell chip heat treatment device, a signal source fixed to the sleeve mounting seat, a through hole formed on the side wall, a graphite sleeve body inserted into the through hole, a sleeve cap threadedly connected to the end of the graphite sleeve body, a receiving groove formed between the interior of the sleeve cap and the end of the graphite sleeve body, a lens disposed in the receiving groove, a boss fixed to the outer surface of the end of the sleeve cap, the boss disposed on the outside of the through hole, and a through groove connected to the lens. The present invention provides a boss on the outside of the sleeve cap to cover the through hole, so that selenium flowing down the side wall is not easily entered into the through groove, thereby preventing selenium from adhering to the lens and making the lens less likely to be blocked, thereby ensuring normal signal transmission.

Description

Technical Field

[0001] The invention relates to the technical field of solar cell manufacturing, in particular to a sensor graphite sleeve component that prevents selenium from sticking. Background Art

[0002] In recent years, with the advancement of research and production technologies, solar power generation modules are playing a significant role in the traditional energy sector. The current market primarily consists of silicon-based solar cells, multi-compound thin-film solar cells, and organic dye-sensitized solar cells. Silicon-based solar cells, due to their advantages in raw material reserves, have become the dominant solar cell product, maintaining a significant market share. Compared to other types of solar cells, silicon-based solar cells boast relatively mature and stable research and production, and boast higher photoelectric conversion efficiency. In the coming years, the enormous global demand for photovoltaic power generation will drive continued strong growth for silicon-based solar cells.

[0003] During the production process of CIGS thin-film solar cell chips, heating equipment is required to perform rapid heat treatment on the chips. During the production process, the sensor lenses of the equipment often suffer from various faults due to selenium sticking inside the equipment, which are mainly manifested in equipment transmission jams and signal abnormalities. Frequent cleaning is required. If the selenium sticking is serious, the equipment must be shut down and unpacked for cleaning, which seriously affects the utilization rate of the equipment. Frequent equipment failures often occur during the production process. The main equipment failures are concentrated on the failures caused by selenium adsorption in the cavity. Therefore, how to improve equipment utilization and productivity and ensure stable product quality is of great significance. Summary of the Invention

[0004] The purpose of the present invention is to provide a sensor graphite sleeve assembly that prevents selenium from sticking. By arranging a boss on the outside of the sleeve cap and covering the through hole with the boss, selenium flowing along the side wall is not easily entered into the through groove, thereby solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sensor graphite sleeve assembly for preventing selenium from sticking, comprising a sleeve mounting seat fixed on the side wall of a solar cell chip heat treatment device, a signal source being fixed on the sleeve mounting seat, a through hole being provided on the side wall, a graphite sleeve body being inserted into the through hole, a sleeve cap being threadedly connected to the end of the graphite sleeve body, a receiving groove being provided between the interior of the sleeve cap and the end of the graphite sleeve body, a lens being provided in the receiving groove, a boss being fixed on the outer surface of the end of the sleeve cap, the boss being provided on the outer side of the through hole, a through groove being provided on the boss communicating with the lens, a limiting block being fixed on the outer surface of the graphite sleeve body, a limiting groove being provided inside the sleeve mounting seat, and the limiting block being clamped in the limiting groove.

[0006] Preferably, an annular protrusion is fixed on the sleeve mounting seat, and a thread groove for threaded connection of the annular protrusion is provided on the side wall.

[0007] Preferably, an annular groove is provided on the outer surface of the sleeve mounting seat, a circular ring is rotatably provided on the annular groove, a fixing block is fixed on the circular ring, a fastening bolt is threadedly connected to the fixing block, and a threaded hole for threaded connection of the fastening bolt is provided on the side wall.

[0008] Preferably, the limiting block is configured as a square block, and the limiting groove is configured as a square groove.

[0009] Preferably, the diameter of the sleeve cap is set to 24-26 mm, and the length of the sleeve cap is set to 10-14 mm.

[0010] Preferably, the diameter of the boss is set to 27-30 mm, the diameter of the through groove is set to 18-19 mm, and the thickness of the boss is set to 2-4 mm.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The present invention provides a boss on the outside of the sleeve cap to cover the through hole. Since the boss is a protruding structure relative to the side wall, selenium will flow downward along the circumferential surface of the boss, making it difficult for the selenium flowing along the side wall to enter the through groove, thereby preventing the selenium from adhering to the lens and making the lens less likely to be blocked, which is conducive to ensuring normal signal transmission;

[0013] 2. The present invention can conveniently fix the sleeve mounting seat to the side wall by providing an annular protrusion and a threaded groove. At the same time, the sleeve mounting seat can be further fixed by providing a circular ring, a fixing block and a fastening bolt, thereby increasing the installation stability between the sleeve mounting seat and the side wall and facilitating disassembly.

[0014] 3. The present invention provides a limit block and a limit groove, and changes the limit block and the limit groove into a square structure, so that when the sleeve cap is rotated, the graphite sleeve body will not rotate with the sleeve cap, so that the sleeve cap can be directly disassembled and assembled, which is convenient for cleaning the lens, significantly reduces the maintenance workload, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the structural diagrams of the present invention;

[0016] Figure 2 This is the second structural diagram of the present invention;

[0017] Figure 3 It is a cross-sectional view of the structure of the present invention;

[0018] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle;

[0020] Figure 6 This is a schematic diagram of the connection structure between the sleeve cap and the graphite sleeve body of the present invention;

[0021] Figure 7 It is a structural schematic diagram of the limiting groove on the surface of the sleeve mounting seat of the present invention.

[0022] In the figure: 1. Side wall; 2. Sleeve mounting seat; 3. Signal source; 4. Through hole; 5. Graphite sleeve body; 6. Sleeve cap; 7. Receiving groove; 8. Lens; 9. Boss; 10. Through groove; 11. Limit block; 12. Limit groove; 13. Annular protrusion; 14. Threaded groove; 15. Annular groove; 16. Ring; 17. Fixing block; 18. Fastening bolt; 19. Threaded hole. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] For example 1, please refer to Figure 1-Figure 7 The present invention provides a technical solution: a graphite sleeve assembly of a sensor with anti-selenium sticking, comprising a sleeve mounting base 2 fixed on a side wall 1 of a solar cell chip heat treatment device, a signal source 3 fixed on the sleeve mounting base 2, a through hole 4 provided on the side wall 1, a graphite sleeve body 5 inserted in the through hole 4, a sleeve cap 6 threadedly connected to the end of the graphite sleeve body 5, a receiving groove 7 provided between the interior of the sleeve cap 6 and the end of the graphite sleeve body 5, a lens 8 provided in the receiving groove 7, a boss 9 fixed to the outer surface of the end of the sleeve cap 6, the boss 9 provided on the outer side of the through hole 4, a through groove 10 communicating with the lens 8, a limiting block 11 fixed to the outer surface of the graphite sleeve body 5, a limiting groove 12 provided in the interior of the sleeve mounting base 2, and the limiting block 11 clamped in the limiting groove 12;

[0025] In the present technical solution, the solar cell chip heat treatment equipment is a prior art and is not an innovation of the present application, so it will not be described in detail. When in use, the sleeve mounting seat 2 is first fixed to the side wall 1 of the solar cell chip heat treatment equipment, and then the graphite sleeve body 5 is inserted into the through hole 4 of the side wall 1 until the limit block 11 is inserted into the limit groove 12, so that the graphite sleeve body 5 cannot move. Then, the lens 8 is placed in the sleeve cap 6, and the sleeve cap 6 is connected to the end of the graphite sleeve body 5. By rotating the boss 9, the sleeve cap 6 is threadedly connected to the end of the graphite sleeve body 5. At this time, the lens 8 is positioned in the receiving groove 7, and the boss 9 is stuck on the outside of the through hole 4;

[0026] In this technical solution, the selenium flowing down the side wall 1 of the heating chamber of the solar cell chip heat treatment equipment passes through the boss 9. Since the boss 9 is a protruding structure relative to the side wall 1, the selenium will flow downward along the circumferential surface of the boss 9. At this time, it will not enter the position of the lens 8 through the through groove 10, so that the selenium does not adhere to the lens 8. Then, the signal is transmitted through the signal source 3, which can ensure that the signal is sent normally.

[0027] The difference between the second embodiment and the first embodiment is that, please refer to Figure 1-Figure 7 , an annular protrusion 13 is fixed on the sleeve mounting seat 2, and a thread groove 14 for threaded connection of the annular protrusion 13 is opened on the side wall 1;

[0028] An annular groove 15 is formed on the outer surface of the sleeve mounting seat 2. A ring 16 is rotatably mounted on the annular groove 15. A fixing block 17 is fixed to the ring 16. A fastening bolt 18 is threadedly connected to the fixing block 17. A threaded hole 19 for the fastening bolt 18 to be threadedly connected is formed on the side wall 1.

[0029] In this technical solution, when installing the sleeve mounting seat 2, first align the annular protrusion 13 with the threaded groove 14 on the side wall 1, then rotate the sleeve mounting seat 2, screw the annular protrusion 13 into the threaded groove 14 until the sleeve mounting seat 2 cannot be rotated, then rotate the ring 16 to rotate the fixing block 17 on the ring 16 to the position of the threaded hole 19 on the side wall 1, and then screw the fastening bolt 18 into the threaded hole 19 to fix the sleeve positioning seat again. The above method can increase the stability of the installation between the sleeve mounting seat 2 and the side wall 1 and facilitate disassembly.

[0030] In the third embodiment, since the conventional limiting block 11 and limiting groove 12 are circular in structure when the graphite sleeve body 5 and the sleeve mounting seat 2 are disassembled, the graphite sleeve body 5 will rotate each time the sleeve cap 6 is rotated to disassemble and clean the lens 8, making it difficult to remove the sleeve cap 6. The sleeve mounting seat 2 must be removed from the outside of the device, which increases the maintenance workload and reduces work efficiency. In order to solve this problem, an improvement is made based on the second embodiment. Please refer to Figure 1-Figure 7 , the limiting block 11 is set as a square block, and the limiting groove 12 is set as a square groove;

[0031] In this technical solution, by setting the limit block 11 and the limit groove 12 to a square structure, each time the sleeve cap 6 is rotated to disassemble and clean the lens 8, the graphite sleeve body 5 will not rotate accordingly, so that the sleeve cap 6 can be directly disassembled and assembled, which is convenient for cleaning the lens 8, significantly reducing the maintenance workload and improving work efficiency.

[0032] Embodiment 4 is improved on the basis of embodiment 3, wherein the diameter of the sleeve cap 6 is set to 24-26 mm, and the length of the sleeve cap 6 is set to 10-14 mm;

[0033] The diameter of the boss 9 is set to 27-30 mm, the diameter of the through groove 10 is set to 18-19 mm, and the thickness of the boss 9 is set to 2-4 mm;

[0034] In the present technical solution, in order to better meet the installation requirements, the diameter of the sleeve cap 6 is set to 25 mm, and the length of the sleeve cap 6 is set to 12 mm;

[0035] The diameter of the boss 9 is set to 28 mm, the diameter of the through groove 10 is set to 18.5 mm, and the thickness of the boss 9 is set to 3 mm.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A graphite sleeve assembly for a sensor that prevents selenium from sticking, comprising a sleeve mounting seat (2) fixed to a side wall (1) of a solar cell chip heat treatment device, characterized in that: A signal source (3) is fixed on the sleeve mounting seat (2), a through hole (4) is provided on the side wall (1), a graphite sleeve body (5) is inserted into the through hole (4), a sleeve cap (6) is threadedly connected to the end of the graphite sleeve body (5), a receiving groove (7) is provided between the interior of the sleeve cap (6) and the end of the graphite sleeve body (5), a lens (8) is provided in the receiving groove (7), a boss (9) is fixed on the outer surface of the end of the sleeve cap (6), the boss (9) is provided on the outer side of the through hole (4), a through groove (10) connected to the lens (8) is provided on the boss (9), a limiting block (11) is fixed on the outer surface of the graphite sleeve body (5), a limiting groove (12) is provided inside the sleeve mounting seat (2), and the limiting block (11) is clamped in the limiting groove (12).

2. The sensor graphite sleeve assembly for preventing selenium from sticking according to claim 1, characterized in that: An annular projection (13) is fixed on the sleeve mounting seat (2), and a thread groove (14) for threaded connection of the annular projection (13) is provided on the side wall (1).

3. The sensor graphite sleeve assembly for preventing selenium from sticking according to claim 2, characterized in that: An annular groove (15) is provided on the outer surface of the sleeve mounting seat (2), a circular ring (16) is rotatably provided on the annular groove (15), a fixing block (17) is fixed on the circular ring (16), a fastening bolt (18) is threadedly connected to the fixing block (17), and a threaded hole (19) for threading the fastening bolt (18) is provided on the side wall (1).

4. The sensor graphite sleeve assembly for preventing selenium from sticking according to claim 1, characterized in that: The limiting block (11) is configured as a square block, and the limiting groove (12) is configured as a square groove.

5. The sensor graphite sleeve assembly for preventing selenium from sticking according to claim 1, characterized in that: The diameter of the sleeve cap (6) is set to 24-26 mm, and the length of the sleeve cap (6) is set to 10-14 mm.

6. The sensor graphite sleeve assembly for preventing selenium from sticking according to claim 1, characterized in that: The diameter of the boss (9) is set to 27-30 mm, the diameter of the through groove (10) is set to 18-19 mm, and the thickness of the boss (9) is set to 2-4 mm.

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