Selenium sticking prevention sensor graphite sleeve assembly

Abstract

The invention discloses an anti-selenium-sticking sensor graphite sleeve assembly, which comprises a sleeve mounting seat fixed on the side wall of solar cell chip heat treatment equipment, a signal source is fixed on the sleeve mounting seat, a through hole is formed in the side wall, a graphite sleeve body is inserted into the through hole, and the graphite sleeve body is fixed on the sleeve mounting seat. The end of the graphite sleeve body is in threaded connection with a sleeve cap, a containing groove is formed between the interior of the sleeve cap and the end of the graphite sleeve body, a lens is arranged in the containing groove, a boss is fixed to the outer surface of the end of the sleeve cap, and the boss is arranged on the outer side of the through hole. The boss is provided with a through groove communicated with the lens. According to the invention, the boss is arranged on the outer side of the sleeve cap, and the through hole is covered by the boss, so that selenium flowing down along the side wall is not easy to enter the through groove, the selenium is not easy to adhere to the lens, the lens is not easy to block, and normal transmission of signals is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of solar cell manufacturing, in particular to a sensor graphite sleeve component which is anti-selenium sticking. Background Art

[0002] In recent years, with the development of research and production technology, solar power generation components will play a major role in the field of traditional energy. The current market mainly includes silicon-based solar cells, multi-compound thin-film solar cells, and organic dye-sensitized solar cells. Among them, silicon-based solar cells have become the leading product of solar cells due to their advantages in raw material reserves, maintaining a large market share. Compared with other types of solar cells, the research and production of silicon-based solar cells are relatively mature and stable, and the photoelectric conversion efficiency is relatively high. In the next few years, the huge demand for photovoltaic power generation in countries around the world will drive the development momentum of silicon-based solar cells to remain strong.

[0003] CIGS thin-film solar cell chips require rapid heat treatment with heating equipment during the production process. During the production process, the sensor lenses of the equipment often cause various faults due to selenium sticking inside the equipment, which are mainly reflected in the equipment stuck transmission 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 equipment utilization rate. 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 object 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, the selenium flowing down the side wall is not easy to enter the through groove, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, 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 to 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 and communicating with the lens, a limiting block being fixed to 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 formed 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 circular 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 outer side 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, so that the selenium flowing along the side wall is not easy to enter the through groove, so that the selenium is not easy to adhere to the lens, so that the lens is not easy 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 means of the annular protrusion and the threaded groove, and can further fix the sleeve mounting seat by means of the circular ring, the fixing block and the fastening bolt, thereby increasing the installation stability between the sleeve mounting seat and the side wall and facilitating disassembly;

[0014] 3. The present invention sets 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 It is one of the structural schematic diagrams of the present invention;

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

[0017] Figure 3 It is a structural cross-sectional view 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 It 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 schematic structural 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, circular ring; 17, fixing block; 18, fastening bolt; 19, threaded hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

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

[0025] In the present technical solution, the solar cell chip heat treatment equipment is a prior art, not an innovation of the present application, and will not be described in detail. When in use, the sleeve mounting seat 2 is first fixed on 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, and 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, and the sleeve cap 6 is threadedly connected to the end of the graphite sleeve body 5 by rotating the boss 9. 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 the present technical solution, when 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, and will not enter the lens 8 through the through groove 10 at this time, so that the selenium does not adhere to the lens 8, and then the signal is emitted through the signal source 3, which can ensure the normal transmission of the signal.

[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 provided on the side wall 1;

[0028] An annular groove 15 is provided on the outer surface of the sleeve mounting seat 2, a ring 16 is rotatably provided on the annular groove 15, a fixing block 17 is fixed on the 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;

[0029] In the present technical scheme, 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, then screw the fastening bolt 18 into the threaded hole 19, and fix the sleeve positioning seat again. The above method can increase the installation stability between the sleeve mounting seat 2 and the side wall 1 and facilitate disassembly.

[0030] In the third embodiment, when the graphite sleeve body 5 and the sleeve mounting seat 2 are disassembled, the conventional limit block 11 and the limit groove 12 are circular structures. Each time the sleeve cap 6 is rotated to disassemble and clean the lens 8, the graphite sleeve body 5 will rotate accordingly, 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 the work efficiency. In view of this problem, improvements are made on the basis of 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 the present technical solution, by setting the limit block 11 and the limit groove 12 as 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 along with it, 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, 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 slot 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] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present 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 on 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 inside 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 is characterized in that: 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 provided on the side wall (1).

3. The sensor graphite sleeve assembly for preventing selenium from sticking according to claim 2 is characterized in that: The outer surface of the sleeve mounting seat (2) is provided with an annular groove (15), a circular ring (16) is rotatably arranged 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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