Photovoltaic cell etching spray device

Abstract

The application discloses a photovoltaic cell etching and spraying device, belonging to the technical field of photovoltaic cell etching and spraying devices.The device comprises a spraying box, a support column is fixedly connected to the lower end surface of the spraying box, a mesh plate is fixedly connected to the inner cavity of the lower end surface of the spraying box, a collecting box is fixedly communicated with the lower end surface of the spraying box, the collecting box is communicated with the spraying box through the mesh plate, a storage box is fixedly connected to the upper end surface of the spraying box through a support block, L-shaped fixing blocks are fixedly connected to the upper and lower edges of the front end surface of the spraying box, and sealing covers are slidably connected to the inner cavities of the L-shaped fixing blocks.The application solves the problem that the photovoltaic cell cannot be automatically rotated for overturning, so that the lower surface of the photovoltaic cell cannot be etched and sprayed.The etching and spraying device directly sprays the entire surface of the photovoltaic cell by using a spraying plate, so that the spraying thickness is not uniform, and the waste and dust generated during the etching and spraying process of the photovoltaic cell cannot be pumped and collected.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic cell etching spray devices, in particular to a photovoltaic cell etching spray device. Background Art

[0002] Solar cells are devices that directly convert light energy into electrical energy through the photoelectric or photochemical effect. Currently, the most widely used solar cell is a silicon solar cell. The production of silicon cells primarily involves the following steps: texturing, diffusion, etching, anti-reflection coating, electrode printing, and electrode sintering. Etching is a crucial step in the production of silicon solar cells, removing the phosphosilicate glass on the back of the cell formed during the diffusion process. The quality of the etching directly impacts the cell's conversion efficiency.

[0003] The patent document with publication number CN216120329U discloses a spray device for etching photovoltaic cells, comprising an etching body, a spray chamber is formed on the outer surface of the front end of the etching body, a circular spray pipe is arranged inside the spray chamber, a plurality of atomizing nozzles are fixedly installed at the bottom of the circular spray pipe, a U-shaped movable pipe is fixedly connected to the top two ends of the circular spray pipe, and the U-shaped movable pipe is connected to the etching body, a fixed sleeve is provided on the outer surface of the U-shaped movable pipe, a hydraulic cylinder is provided at the upper end of the etching body, and the top of the hydraulic cylinder piston rod is fixedly connected to the bottom of the fixed sleeve, a spray liquid tank is fixedly connected to the top of the spray liquid tank, an injection pipe and an output pipe are fixedly connected to the top of the spray liquid tank, a connecting hose is fixedly installed between the output pipe and the U-shaped movable pipe, a dust suction box is fixedly connected to both sides of the etching body, an air suction pipe is provided at the top of the dust suction box, and the end of the air suction pipe away from the dust suction box is connected to the etching body. However, the above-mentioned comparative documents have the following deficiencies:

[0004] 1. It is inconvenient to automatically rotate the photovoltaic cell to flip it, resulting in the inability to etch and spray the bottom of the photovoltaic cell;

[0005] Second, the etching spray device directly uses the spray plate to spray the entire surface of the photovoltaic cell, which easily leads to uneven spray thickness;

[0006] 3. During the etching spraying process of photovoltaic cells, the waste and dust generated by the etching spraying cannot be collected by pumping, resulting in the waste and dust generated by the etching spraying floating in the spray box, affecting the etching spraying effect of the photovoltaic cells.

[0007] Based on this, the present invention designs a photovoltaic cell etching spray device to solve the above problems. Summary of the Invention

[0008] In order to solve the above problems, the present invention provides the following technical solutions:

[0009] A photovoltaic cell etching spray device comprises a spray box, the lower end face of the spray box is fixedly connected to a support column, the inner cavity of the lower end face of the spray box is fixedly connected to a mesh plate, the lower end face of the spray box is fixedly connected to a collection box, and the collection box is connected to the spray box through the mesh plate, the upper end face of the spray box is fixedly connected to a storage box through a support block, the upper and lower edges of the front end face of the spray box are fixedly connected to L-shaped fixing blocks, the inner cavity of the L-shaped fixing block is slidably connected to a sealing cover, the front end faces of the sealing cover are fixedly connected to handles where they are close to each other, and a pushing mechanism is provided inside the rear end face of the spray box.

[0010] Furthermore, the pushing mechanism includes a first motor, a fixed rod, a U-shaped slider, a bidirectional threaded rod, a slide groove, a pushing rod, a U-shaped connecting block and a U-shaped clamp. The rear end face of the spray box is fixedly connected to the first motor, and the first motor is fixedly connected to the fixed rod through an output shaft. A slide groove is provided inside the front end face of the fixed rod, and the inner cavity of the slide groove is rotatably connected to the bidirectional threaded rod through a bearing.

[0011] Furthermore, the external thread of the bidirectional threaded rod is connected to a U-shaped slider, the inner cavity of the U-shaped slider is rotatably connected to a push rod via a rotating shaft, the push rod is rotatably connected to a U-shaped connecting block at one end away from the U-shaped slider via a rotating shaft, the U-shaped connecting block is fixedly connected to an end away from the push rod with a U-shaped splint, and the upper and lower walls of the inner cavity of the U-shaped splint are provided with latex pads.

[0012] Furthermore, a second motor is fixedly connected to the upper front wall of the spray box cavity, and the second motor is fixedly connected to a screw through an output shaft. A fixed block is fixedly connected to the upper wall of the spray box cavity, and the inside of the fixed block is rotatably connected to a screw through a bearing.

[0013] Furthermore, the external thread of the screw rod is connected to a slider, the lower end face of the slider is fixedly connected to a hook, the inner cavity of the hook is fixedly connected to an atomizing nozzle, the lower end face of the storage box is fixedly connected to a diversion pipe, and the diversion pipe is fixedly connected to the atomizing nozzle through a hook at one end away from the storage box, and the diversion pipe is a rubber foldable hose.

[0014] Furthermore, the left end face of the collection box is fixedly connected to a drive motor, and the drive motor is rotatably connected to a cylinder through an output shaft. The cylinder is located at one end of the inner cavity of the collection box and is fixedly connected to a first bevel gear, and the first bevel gear is meshed with a second bevel gear.

[0015] Furthermore, the inner cavity of the collection box is fixedly connected to a support rod, the interior of the support rod is rotatably connected to a connecting column through a bearing, the upper end face of the connecting column is fixedly connected to a fan blade, and the lower end face of the connecting column is fixedly connected to a second bevel gear.

[0016] Beneficial effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. A person holds the handle and pulls the sealing cover to slide and connect in the inner cavity of the L-shaped fixed block to move away from each other to open the spray box, and then rotates the two-way threaded rod to drive the U-shaped slider to slide closer to each other in the inner cavity of the slide slot, so that the U-shaped slider uses the rotating shaft to drive the push rod to push the U-shaped connecting block to drive the U-shaped splint to slide out of the spray box cavity, and then place the photovoltaic cell to be etched and sprayed in the inner cavity of the U-shaped splint, and use the latex pad in the inner cavity of the U-shaped splint to squeeze and clamp the photovoltaic cell, and then use the two-way threaded rod to drive the U-shaped slider to drive the push rod to pull The U-shaped connecting block and the U-shaped splint drive the photovoltaic cell to be stored in the spray box for etching and spraying. When the etching and spraying of one side of the photovoltaic cell is completed, the first motor is started to rotate the fixed rod, so that the fixed rod uses the sliding groove to cooperate with the two-way threaded rod to drive the U-shaped slider and the push rod, and then the push rod uses the U-shaped connecting block to cooperate with the U-shaped splint to drive the photovoltaic cell to flip, thereby facilitating the etching and spraying of the photovoltaic cell, avoiding the inconvenience of the existing photovoltaic cell etching and spraying device in automatically rotating the photovoltaic cell for flipping, resulting in the inconvenience of being unable to etch and spray the bottom of the photovoltaic cell.

[0019] 2. When etching and spraying the photovoltaic cell, the second motor is started to rotate the screw thread transmission slider to drive the hook, and then the hook drives the atomizing nozzle to move back and forth at a uniform speed. During the movement of the atomizing nozzle, the diverter pipe is used in conjunction with the water pump to discharge the etching solution in the storage tank into the atomizing nozzle, and the atomizing nozzle sprays the etching solution evenly on the photovoltaic cell during the uniform movement, avoiding the existing photovoltaic cell etching spray device directly using the spray plate to spray the entire surface of the photovoltaic cell, which easily leads to uneven spray thickness.

[0020] 3. During the etching and spraying process of photovoltaic cells, the driving motor is started to rotate the first bevel gear of the cylindrical transmission, and then the first bevel gear rotates the second bevel gear transmission connecting column to drive the fan blades, so that the fan blades quickly draw the waste and dust generated by the etching and spraying in the spray box through the mesh plate into the collection box for storage, thereby solving the problem that the existing photovoltaic cell etching spray device cannot draw and collect the waste and dust generated by the etching spraying during the etching and spraying process of photovoltaic cells, resulting in the waste and dust generated by the etching spraying floating in the spray box, affecting the etching spraying effect of the photovoltaic cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the rear-view stereoscopic structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the half-section structure of the spray box of the present invention;

[0025] Figure 4 This is a schematic diagram of the partial cross-sectional structure of the spray box of the present invention;

[0026] Figure 5 This is a schematic diagram of a half-section structure of a fixing rod of the present invention;

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1. Spray box; 2. Support column; 3. Collection box; 4. L-shaped fixing block; 5. Sealing cover; 6. Handle; 7. Storage box; 8. Support block; 9. Push mechanism; 901. First motor; 902. Fixing rod; 903. U-shaped slider; 904. Bidirectional threaded rod; 905. Slide; 906. Push rod; 907. U-shaped connecting block; 908. U-shaped clamp; 10. Second motor; 11. Fixing block; 12. Screw rod; 13. Slider; 14. Hook; 15. Atomizing nozzle; 16. Guide block; 17. Screen; 18. Diverter pipe; 19. Drive motor; 20. Cylinder; 21. First bevel gear; 22. Second bevel gear; 23. Support rod; 24. Fan blade; 25. Connecting column DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] See also Figure 1-5 , the present invention provides a technical solution:

[0031] A photovoltaic cell etching spray device includes a spray box 1, the lower end face of the spray box 1 is fixedly connected to a support column 2, the inner cavity of the lower end face of the spray box 1 is fixedly connected to a mesh plate 17, the lower end face of the spray box 1 is fixedly connected to a collection box 3, and the collection box 3 is connected to the spray box 1 through the mesh plate 17, the upper end face of the spray box 1 is fixedly connected to a storage box 7 through a support block 8, the upper and lower edges of the front end face of the spray box 1 are fixedly connected to L-shaped fixing blocks 4, the inner cavity of the L-shaped fixing block 4 is slidably connected to a sealing cover 5, the front end faces of the sealing cover 5 are fixedly connected to handles 6 close to each other, and a pushing mechanism 9 is provided inside the rear end face of the spray box 1.

[0032] In this embodiment, the pushing mechanism 9 includes a first motor 901, a fixed rod 902, a U-shaped slider 903, a bidirectional threaded rod 904, a slide 905, a pushing rod 906, a U-shaped connecting block 907 and a U-shaped clamp 908. The rear end face of the spray box 1 is fixedly connected to the first motor 901, and the first motor 901 is fixedly connected to the fixed rod 902 through an output shaft. A slide 905 is provided inside the front end face of the fixed rod 902, and the inner cavity of the slide 905 is rotatably connected to the bidirectional threaded rod 904 through a bearing. The person holds the handle 6 and pulls the sealing cover 5 to slide and connect in the inner cavity of the L-shaped fixing block 4 to move away from each other to open the spray box 1, and then rotates the two-way threaded rod 904 to thread the U-shaped slider 903 to slide and connect in the inner cavity of the slide groove 905 to move closer to each other, so that the U-shaped slider 903 drives the push rod 906 through the rotating shaft to push the U-shaped connecting block 907 to drive the U-shaped splint 908 to slide out of the inner cavity of the spray box 1, and then the photovoltaic cell to be etched and sprayed is placed in the inner cavity of the U-shaped splint 908, and the latex pad in the inner cavity of the U-shaped splint 908 is used to squeeze, clamp and fix the photovoltaic cell, and then the two-way threaded rod 904 threads The U-shaped slider 903 drives the push rod 906 Pull the U-shaped connecting block 907 and the U-shaped splint 908 to drive the photovoltaic cell to be stored in the spray box 1 for etching and spraying. When the etching and spraying of one side of the photovoltaic cell is completed, the first motor 901 is started to rotate the fixed rod 902, so that the fixed rod 902 uses the slide groove 905 to cooperate with the bidirectional threaded rod 904 to drive the U-shaped slider 903 and the push rod 906, and then the push rod 906 uses the U-shaped connecting block 907 to cooperate with the U-shaped splint 908 to drive the photovoltaic cell to flip, thereby facilitating the etching and spraying of the photovoltaic cell, avoiding the inconvenience of the existing photovoltaic cell etching spray device in automatically rotating the photovoltaic cell for flipping, resulting in the inconvenience of etching and spraying the bottom of the photovoltaic cell.

[0033] In this embodiment, the external threaded connection of the bidirectional threaded rod 904 is connected to the U-shaped slider 903, the inner cavity of the U-shaped slider 903 is connected to the push rod 906 through a rotating shaft, the push rod 906 is connected to the U-shaped connecting block 907 at one end away from the U-shaped slider 903 through a rotating shaft, the U-shaped connecting block 907 is fixedly connected to the U-shaped splint 908 at one end away from the push rod 906, and the upper and lower walls of the inner cavity of the U-shaped splint 908 are provided with latex pads. When etching and spraying the photovoltaic cell, the second motor 10 is started to rotate the screw 12 and the threaded transmission slider 13 to drive the hook 14, and then the hook 14 drives the atomizing nozzle 15 to move back and forth at a uniform speed, so that the atomizing nozzle 15 uses the diverter pipe 18 to cooperate with the water pump to discharge the etching solution in the storage box 7 into the atomizing nozzle 15 during the movement, and the atomizing nozzle 15 sprays the etching solution evenly on the photovoltaic cell during the uniform movement, avoiding the existing photovoltaic cell etching spraying device directly using the spray plate to spray the entire surface of the photovoltaic cell, which easily leads to uneven spraying thickness.

[0034] In this embodiment, a second motor 10 is fixedly connected to the upper front wall of the inner cavity of the spray box 1, and the second motor 10 is fixedly connected to a screw rod 12 through an output shaft. A fixed block 11 is fixedly connected to the upper wall of the inner cavity of the spray box 1, and the inside of the fixed block 11 is rotatably connected to the screw rod 12 through a bearing.

[0035] In this embodiment, the external thread of the screw rod 12 is connected to the slider 13, the lower end surface of the slider 13 is fixedly connected to the hook 14, the inner cavity of the hook 14 is fixedly connected to the atomizing nozzle 15, and the lower end surface of the storage box 7 is fixedly connected to the diverter pipe 18. The diverter pipe 18 is fixedly connected to the atomizing nozzle 15 through the hook 14 at one end away from the storage box 7. The diverter pipe 18 is a rubber foldable hose. During the etching spraying process of the photovoltaic cell, the cylinder 20 is rotated by starting the drive motor 19 to drive the first bevel gear 21, and then the first bevel gear 21 rotates the second bevel gear 22 to drive the connecting column 25 to drive the fan blade 24, so that the fan blade 24 quickly draws the waste and dust generated by the etching spray in the spray box 1 through the mesh plate 17 into the collection box 3 for storage, thereby solving the problem that the existing photovoltaic cell etching spray device cannot draw and collect the waste and dust generated by the etching spray during the etching spraying process of the photovoltaic cell, resulting in the waste and dust generated by the etching spray floating in the spray box, affecting the etching spraying effect of the photovoltaic cell.

[0036] In this embodiment, a drive motor 19 is fixedly connected to the left end face of the collection box 3, and the drive motor 19 is rotatably connected to a cylinder 20 through an output shaft. The cylinder 20 is located at one end of the inner cavity of the collection box 3 and is fixedly connected to a first bevel gear 21, and the first bevel gear 21 is meshed with a second bevel gear 22.

[0037] In this embodiment, the inner cavity of the collection box 3 is fixedly connected to a support rod 23, and the interior of the support rod 23 is rotatably connected to a connecting column 25 through a bearing. The upper end face of the connecting column 25 is fixedly connected to a fan blade 24, and the lower end face of the connecting column 25 is fixedly connected to a second bevel gear 22.

[0038] During use: a person holds the handle 6 and pulls the sealing cover 5 to slide and connect in the inner cavity of the L-shaped fixing block 4 to move away from each other to open the spray box 1, and then rotates the bidirectional threaded rod 904 to thread the U-shaped slider 903 to slide and connect in the inner cavity of the slide groove 905 to move closer to each other, so that the U-shaped slider 903 drives the push rod 906 through the rotating shaft to push the U-shaped connecting block 907 to drive the U-shaped splint 908 to slide out of the inner cavity of the spray box 1, and then places the photovoltaic cell to be etched and sprayed in the inner cavity of the U-shaped splint 908, and uses the latex pad in the inner cavity of the U-shaped splint 908 to squeeze the photovoltaic cell. After being clamped and fixed, the U-shaped slider 903 is threadedly driven by the bidirectional threaded rod 904 to drive the push rod 906 to pull the U-shaped connecting block 907 and the U-shaped clamping plate 908 to drive the photovoltaic cell to be stored in the spray box 1 for etching and spraying. When the etching and spraying of one side of the photovoltaic cell is completed, the first motor 901 is started to rotate the fixed rod 902, so that the fixed rod 902 uses the sliding groove 905 to cooperate with the bidirectional threaded rod 904 to drive the U-shaped slider 903 and the push rod 906, and then the push rod 906 uses the U-shaped connecting block 907 to cooperate with the U-shaped clamping plate 908 to drive the photovoltaic cell to flip. Thereby, it is convenient to etch and spray the photovoltaic cells. When the photovoltaic cells are etched and sprayed, the second motor 10 is started to rotate the screw rod 12, the threaded transmission slider 13 drives the hook 14, and then the hook 14 drives the atomizing nozzle 15 to move back and forth at a uniform speed, so that the atomizing nozzle 15 uses the shunt pipe 18 to cooperate with the water pump to discharge the etching solution in the storage tank 7 into the atomizing nozzle 15 during the movement, and the atomizing nozzle 15 sprays the etching solution evenly on the photovoltaic cells during the uniform movement. In the process of etching and spraying the photovoltaic cells, by starting The dynamic drive motor 19 rotates the cylinder 20 to drive the first bevel gear 21, and then the first bevel gear 21 rotates the second bevel gear 22 to drive the connecting column 25 to drive the fan blades 24, so that the fan blades 24 quickly draw the waste and dust generated by etching and spraying in the spray box 1 through the mesh plate 17 into the collection box 3 for storage, thereby solving the problem that the existing photovoltaic cell etching spray device cannot draw and collect the waste and dust generated by etching spraying during the etching spraying process of the photovoltaic cell, resulting in the waste and dust generated by etching spraying floating in the spray box, affecting the etching spraying effect of the photovoltaic cell.

[0039] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A photovoltaic cell etching spray device, comprising a spray box (1), characterized in that: The lower end face of the spray box (1) is fixedly connected to a support column (2), the inner cavity of the lower end face of the spray box (1) is fixedly connected to a mesh plate (17), the lower end face of the spray box (1) is fixedly connected to a collection box (3), and the collection box (3) is connected to the spray box (1) through the mesh plate (17), the upper end face of the spray box (1) is fixedly connected to a storage box (7) through a support block (8), the upper and lower edges of the front end face of the spray box (1) are fixedly connected to an L-shaped fixed block (4), the inner cavity of the L-shaped fixed block (4) is slidably connected to a sealing cover (5), the front end faces of the sealing cover (5) are fixedly connected to handles (6) near each other, and a pushing mechanism (9) is provided inside the rear end face of the spray box (1); The pushing mechanism (9) includes a first motor (901), a fixed rod (902), a U-shaped slider (903), a bidirectional threaded rod (904), a chute (905), a pushing rod (906), a U-shaped connecting block (907) and a U-shaped clamp (908); the rear end face of the spray box (1) is fixedly connected to the first motor (901); the first motor (901) is fixedly connected to the fixed rod (902) via an output shaft; a chute (905) is provided inside the front end face of the fixed rod (902); the inner cavity of the chute (905) is rotatably connected to the bidirectional threaded rod (904) via a bearing; The bidirectional threaded rod (904) is externally threadedly connected to a U-shaped slider (903), the inner cavity of the U-shaped slider (903) is rotatably connected to a push rod (906) via a rotating shaft, the push rod (906) is rotatably connected to a U-shaped connecting block (907) at one end away from the U-shaped slider (903) via a rotating shaft, the U-shaped connecting block (907) is fixedly connected to one end away from the push rod (906) with a U-shaped splint (908), and the upper and lower walls of the inner cavity of the U-shaped splint (908) are both provided with latex cushion layers.

2. A photovoltaic cell etching spray device according to claim 1, characterized in that: A second motor (10) is fixedly connected to the upper front wall of the inner cavity of the spray box (1), and the second motor (10) is fixedly connected to a screw rod (12) via an output shaft. A fixed block (11) is fixedly connected to the upper wall of the inner cavity of the spray box (1), and the interior of the fixed block (11) is rotatably connected to the screw rod (12) via a bearing.

3. The photovoltaic cell etching spray device according to claim 2, characterized in that: The external thread of the screw rod (12) is connected to a slider (13), the lower end surface of the slider (13) is fixedly connected to a hook (14), the inner cavity of the hook (14) is fixedly connected to an atomizing nozzle (15), the lower end surface of the storage box (7) is fixedly connected to a diversion pipe (18), and the end of the diversion pipe (18) away from the storage box (7) is fixedly connected to the atomizing nozzle (15) through the hook (14), and the diversion pipe (18) is a rubber foldable hose.

4. The photovoltaic cell etching spray device according to claim 1, characterized in that: The left end face of the collection box (3) is fixedly connected to a drive motor (19), and the drive motor (19) is rotatably connected to a cylinder (20) via an output shaft. The cylinder (20) is located at one end of the inner cavity of the collection box (3) and is fixedly connected to a first bevel gear (21). The first bevel gear (21) is meshedly connected to a second bevel gear (22).

5. The photovoltaic cell etching spray device according to claim 1, characterized in that: The inner cavity of the collecting box (3) is fixedly connected to a support rod (23), the interior of the support rod (23) is rotatably connected to a connecting column (25) via a bearing, the upper end surface of the connecting column (25) is fixedly connected to a fan blade (24), and the lower end surface of the connecting column (25) is fixedly connected to a second bevel gear (22).

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