Solar cell silicon oxide texturing liquid medicine circulation supply device

Abstract

The utility model discloses a solar cell silicon oxide texturing liquid medicine circulation supply device which comprises a processing box and a circulation mechanism, the circulation mechanism is provided with a filtering mechanism for filtering impurities in processing liquid medicine, and the top of the processing box is provided with a spraying mechanism communicated with the circulation mechanism. A transfer mechanism for driving the spraying mechanism to be far away from the upper part of the treatment box is arranged on the treatment box. By arranging the circulating mechanism, enough treatment liquid medicine can be supplemented into the treatment box, and impurities in the treatment liquid medicine can be treated through the filtering mechanism when the treatment liquid medicine is circulated, so that residual impurities in the treatment liquid medicine can be prevented; the circulating treatment liquid medicine is directly sprayed on the silicon oxide through the spraying mechanism, impurities on the silicon oxide can be directly flushed, more sufficient texturing is guaranteed, the arranged transfer mechanism can enable the spraying mechanism to be far away from the upper portion of the treatment box, and it is guaranteed that the silicon oxide containing basket can be normally taken and placed in the treatment box.

Description

Technical Field

[0001] This utility model relates to the field of solar cell processing technology, specifically to a device for circulating and replenishing the chemical solution for texturing silicon oxide in solar cells. Background Technology

[0002] The texturing process used in solar cells involves creating a textured surface on the silicon wafer to reduce surface reflection, increase light absorption, and improve cell efficiency. The composition of the texturing solution varies depending on the type of silicon wafer (monocrystalline or polycrystalline).

[0003] In the process of texturing silicon oxide for solar cells, the chemical solution needs to be fully processed to ensure sufficient texturing. However, certain impurities may be present during the process of texturing silicon oxide for solar cells, and these impurities remaining on the silicon oxide surface can easily affect the texturing effect. Therefore, we propose a circulating replenishment device for the chemical solution in the silicon oxide texturing process for solar cells. Utility Model Content

[0004] The purpose of this invention is to provide a device for circulating and replenishing the chemical solution for texturing silicon oxide in solar cells, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a solar cell silicon oxide texturing solution circulation and replenishment device, comprising a processing tank, wherein a circulation mechanism is provided on the processing tank for circulating and replenishing the processing solution inside the processing tank, a filtration mechanism is provided on the circulation mechanism for filtering impurities in the processing solution, a spraying mechanism is provided on the top of the processing tank and communicates with the circulation mechanism, a pad is fixedly installed on the top of the processing tank to support the spraying mechanism, and a transfer mechanism is provided on the processing tank to drive the spraying mechanism away from the top of the processing tank.

[0006] Furthermore, the circulation mechanism includes a first supply pump, a storage tank, and a second supply pump. The first supply pump, the storage tank, and the second supply pump are fixedly installed on the back of the treatment tank. A filter mechanism is attached to the back of the treatment tank via two sets of fixing claws. The inlet end of the filter mechanism is fixedly connected to the treatment tank via a first connecting pipe, and the outlet end of the filter mechanism is fixedly connected to the inlet end of the first supply pump via a second connecting pipe. The inlet side of the storage tank is fixedly connected to the outlet side of the first supply pump, and the outlet side of the storage tank is fixedly connected to the inlet end of the second supply pump. The outlet end of the second supply pump is fixedly connected to the spraying mechanism via a third connecting pipe.

[0007] Furthermore, the spraying mechanism includes a bearing housing, a diversion pipe, a connecting pipe, and a nozzle. Two sets of bearing housings are fixedly installed on the back of the treatment box. The diversion pipe, which is rotatably connected to the inside of the bearing housing and communicates with the third connecting pipe, is fixedly connected to the top of the diversion pipe and to multiple sets of connecting pipes. The nozzle is fixedly connected to the bottom of the connecting pipe.

[0008] Furthermore, the transfer mechanism includes a support frame, a drive motor, a first gear disk, and a second gear disk. The support frame is fixedly installed on one side of the processing box, and the drive motor is fixedly installed on the support frame. The output end of the drive motor is fixedly connected to the first gear disk, and the outer surface of the diversion pipe is fixedly installed with a second gear disk that meshes with the first gear disk.

[0009] Furthermore, the filtration mechanism includes a first filter seat, a second filter seat, and an installation tube. An external threaded sleeve is fixedly installed on the top of the second filter seat. An internal threaded sleeve that is threadedly connected to the external threaded sleeve is rotatably connected to the outer surface of the first filter seat. Positioning rings are fixedly installed inside both the first and second filter seats. An installation tube is provided between the two sets of positioning rings. A filter screen is fixedly installed inside the installation tube.

[0010] Furthermore, one side of the processing box is fixedly connected to the bottom of the support frame by a reinforcing plate made of rigid material.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The present invention can replenish the processing liquid inside the processing tank by setting a circulation mechanism, and the impurities in the processing liquid can be treated by the filtration mechanism during the circulation of the processing liquid, thereby preventing the residue of impurities in the processing liquid. The circulating processing liquid is directly sprayed onto the silica by the spraying mechanism, which can directly wash away the impurities on the silica and ensure more thorough texturing. The set transfer mechanism can move the spraying mechanism away from the top of the processing tank, ensuring that the silica holding basket can be normally taken out and put into the processing tank. Attached Figure Description

[0012] Figure 1 This is a first perspective structural diagram of the present invention;

[0013] Figure 2 This is a second perspective view of the structure of this utility model;

[0014] Figure 3 This is an enlarged schematic diagram of structure A of this utility model;

[0015] Figure 4 This is a first perspective view of the filter mechanism of this utility model.

[0016] Figure 5 This is a second perspective view of the filter mechanism of this utility model.

[0017] In the diagram: 1. Processing box, 2. Circulation mechanism, 3. Spraying mechanism, 4. Transfer mechanism, 5. Pad, 6. Filtering mechanism, 7. Fixing claw, 8. First supply pump, 9. Storage box, 10. Second supply pump, 11. First connecting pipe, 12. Second connecting pipe, 13. Third connecting pipe, 14. Bearing seat, 15. Diverter pipe, 16. Connecting pipe, 17. Nozzle, 18. Support frame, 19. Drive motor, 20. First gear disk, 21. Second gear disk, 22. First filter seat, 23. Second filter seat, 24. External threaded sleeve, 25. Internal threaded sleeve, 26. Positioning ring, 27. Mounting pipe, 28. Filter screen, 29. Reinforcing plate. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-5 This utility model provides a technical solution: a device for circulating and replenishing the chemical solution for texturing silicon oxide in solar cells, comprising a processing tank 1, a circulation mechanism 2 for circulating and replenishing the chemical solution inside the processing tank 1, a filter mechanism 6 for filtering impurities in the chemical solution, a spraying mechanism 3 connected to the circulation mechanism 2 on the top of the processing tank 1, a pad 5 for supporting the spraying mechanism 3 fixedly installed on the top of the processing tank 1, and a transfer mechanism 4 for driving the spraying mechanism 3 away from the top of the processing tank 1.

[0020] The circulation mechanism 2 can replenish the processing solution inside the processing tank 1 with sufficient processing solution. During the circulation of the processing solution, the filtration mechanism 6 can filter out impurities in the processing solution, thereby preventing residual impurities in the processing solution. The circulating processing solution is directly sprayed onto the silica by the spray mechanism 3, which can directly wash away impurities on the silica and ensure more thorough texturing. The transfer mechanism 4 can move the spray mechanism 3 away from the top of the processing tank 1, ensuring that the silica holding basket can be properly taken out and put into the processing tank 1.

[0021] Please see Figure 1 and Figure 2The circulation mechanism 2 includes a first supply pump 8, a storage tank 9, and a second supply pump 10. The first supply pump 8, the storage tank 9, and the second supply pump 10 are fixedly installed on the back of the treatment tank 1. The back of the treatment tank 1 is secured with a filter mechanism 6 by two sets of fixing claws 7. The water inlet end of the filter mechanism 6 is fixedly connected to the treatment tank 1 through a first connecting pipe 11. The water outlet end of the filter mechanism 6 is fixedly connected to the water inlet end of the first supply pump 8 through a second connecting pipe 12. The water inlet side of the storage tank 9 is fixedly connected to the water outlet side of the first supply pump 8. The water outlet side of the storage tank 9 is fixedly connected to the water inlet end of the second supply pump 10. The water outlet end of the second supply pump 10 is fixedly connected to the spray mechanism 3 through a third connecting pipe 13.

[0022] The first supply pump 10 can deliver the treatment solution in the treatment tank 1 to the storage tank 9. When the solution is extracted, impurities can be filtered by the filter mechanism 6 to prevent them from re-entering the treatment tank 1. The second supply pump 10 can extract the treatment solution stored in the storage tank 9 to the spray mechanism 3 for spraying, thereby washing away impurities on the surface of silicon oxide.

[0023] Please see Figure 2 The spraying mechanism 3 includes a bearing seat 14, a diversion pipe 15, a connecting pipe 16, and a nozzle 17. Two sets of bearing seats 14 are fixedly installed on the back of the treatment box 1. The diversion pipe 15, which is rotatably connected to the third connecting pipe 13, is rotatably connected to the inside of the bearing seat 14. Multiple sets of connecting pipes 16 are fixedly connected to the top of the diversion pipe 15, and the nozzle 17 is fixedly connected to the bottom of the connecting pipe 16.

[0024] The second supply pump 10 can draw the treatment solution and deliver it to the inside of the diversion pipe 15. Then, the diversion pipe 15 can spray the treatment solution through the connecting pipe 16 and the nozzle 17, so as to wash the impurities on the silicon oxide surface.

[0025] Please see Figure 1 , Figure 2 and Figure 3 The transfer mechanism 4 includes a support frame 18, a drive motor 19, a first gear disk 20, and a second gear disk 21. The support frame 18 is fixedly installed on one side of the processing box 1. The side of the processing box 1 is fixedly connected to the bottom of the support frame 18 through a reinforcing plate 29 made of rigid material. The drive motor 19 is fixedly installed on the support frame 18. The output end of the drive motor 19 is fixedly connected to the first gear disk 20. The second gear disk 21, which meshes with the first gear disk 20, is fixedly installed on the outer surface of the diversion pipe 15.

[0026] When it is necessary to remove or place the silicon oxide wafers from the processing box 1, the drive motor 19 is started. The drive motor 19 drives the first gear disk 20 to operate. In this way, the first gear disk 20 can drive the second gear disk 21 and the diverter pipe 15 to rotate along the bearing seat 14. This allows the nozzle 17 to be removed from the top of the processing box 1, making it convenient for the silicon oxide wafers to be removed or placed from the processing box 1.

[0027] Please see Figure 1 , Figure 4 and Figure 5 The filtration mechanism 6 includes a first filter seat 22, a second filter seat 23, and an installation tube 27. An external threaded sleeve 24 is fixedly installed on the top of the second filter seat 23. An internal threaded sleeve 25, which is threadedly connected to the external threaded sleeve 24, is rotatably connected to the outer surface of the first filter seat 22. A positioning ring 26 is fixedly installed inside both the first filter seat 22 and the second filter seat 23. An installation tube 27 is provided between the two sets of positioning rings 26. A filter screen 28 is fixedly installed inside the installation tube 27.

[0028] When the first supply pump 8 draws the treatment liquid from the treatment tank 1, the filter screen 28 draws out the impurities in the treatment liquid, thereby blocking the impurities and preventing them from re-entering the treatment tank 1. When a large amount of impurities accumulate, the inner threaded sleeve 25 is rotated to disengage the first filter seat 22 and the second filter seat 23 from each other. Then the installation tube 27 and the filter screen 28 can be removed for cleaning.

[0029] In use, the first supply pump 10 first delivers the processing solution from the processing tank 1 to the storage tank 9. During solution extraction, impurities are filtered by the filter mechanism 6 to prevent them from re-entering the processing tank 1. The second supply pump 10 then draws the processing solution from the storage tank 9 to the spray mechanism 3 for spraying, thus rinsing the impurities on the silicon oxide surface. The second supply pump 10 also draws the processing solution and delivers it to the diversion pipe 15, which then sprays the solution through the connecting pipe 16 and the nozzle 17, further rinsing the silicon oxide surface. When it is necessary to remove the silicon oxide wafer from the processing tank 1, the solution is ready to be removed. When loading and unloading, the drive motor 19 is started, which drives the first gear disk 20. This allows the first gear disk 20 to drive the second gear disk 21 and the diverter pipe 15 to rotate along the bearing seat 14. This allows the nozzle 17 to be removed from the top of the treatment box 1, making it easier to load and unload the silicon oxide sheet from the treatment box 1. When the first supply pump 8 draws the treatment solution from the inside of the treatment box 1, the filter screen 28 removes impurities from the treatment solution, thus blocking the impurities and preventing them from re-entering the treatment box 1. When a large amount of impurities accumulate, the inner threaded sleeve 25 is rotated to disengage the first filter seat 22 and the second filter seat 23. Then, the mounting tube 27 and the filter screen 28 can be removed for cleaning.

[0030] 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 device for circulating and replenishing the chemical solution for texturing silicon oxide in solar cells, comprising a processing tank (1), characterized in that: The processing tank (1) is provided with a circulation mechanism (2) for circulating and replenishing the processing liquid inside the processing tank (1). The circulation mechanism (2) is provided with a filter mechanism (6) for filtering impurities in the processing liquid. The top of the processing tank (1) is provided with a spray mechanism (3) that communicates with the circulation mechanism (2). The top of the processing tank (1) is fixedly installed with a pad (5) for supporting the spray mechanism (3). The processing tank (1) is provided with a transfer mechanism (4) for driving the spray mechanism (3) away from the top of the processing tank (1).

2. The device for circulating and replenishing the silicon oxide texturing solution for solar cells according to claim 1, characterized in that: The circulation mechanism (2) includes a first supply pump (8), a storage tank (9), and a second supply pump (10). The first supply pump (8), the storage tank (9), and the second supply pump (10) are fixedly installed on the back of the treatment tank (1). The back of the treatment tank (1) is connected to a filter mechanism (6) by two sets of fixing claws (7). The water inlet end of the filter mechanism (6) is fixedly connected to the treatment tank (1) through a first connecting pipe (11). The water outlet end of the filter mechanism (6) is fixedly connected to the water inlet end of the first supply pump (8) through a second connecting pipe (12). The water inlet side of the storage tank (9) is fixedly connected to the water outlet side of the first supply pump (8). The water outlet side of the storage tank (9) is fixedly connected to the water inlet end of the second supply pump (10). The water outlet end of the second supply pump (10) is fixedly connected to the spray mechanism (3) through a third connecting pipe (13).

3. The device for circulating and replenishing the silicon oxide texturing solution for solar cells according to claim 2, characterized in that: The spraying mechanism (3) includes a bearing seat (14), a diversion pipe (15), a connecting pipe (16), and a nozzle (17). Two sets of bearing seats (14) are fixedly installed on the back of the treatment box (1). The inside of the bearing seat (14) is rotatably connected to the diversion pipe (15) which communicates with the third connecting pipe (13). The top of the diversion pipe (15) is fixedly connected to multiple sets of connecting pipes (16), and the bottom of the connecting pipe (16) is fixedly connected to the nozzle (17).

4. The device for circulating and replenishing the silicon oxide texturing solution for solar cells according to claim 3, characterized in that: The transfer mechanism (4) includes a support frame (18), a drive motor (19), a first gear disk (20), and a second gear disk (21). The support frame (18) is fixedly installed on one side of the processing box (1). The drive motor (19) is fixedly installed on the support frame (18). The output end of the drive motor (19) is fixedly connected to the first gear disk (20). The outer surface of the diversion pipe (15) is fixedly installed with the second gear disk (21) meshing with the first gear disk (20).

5. The device for circulating and replenishing the silicon oxide texturing solution for solar cells according to claim 4, characterized in that: The filtration mechanism (6) includes a first filter seat (22), a second filter seat (23), and an installation tube (27). An external threaded sleeve (24) is fixedly installed on the top of the second filter seat (23). An internal threaded sleeve (25) that is threadedly connected to the external threaded sleeve (24) is rotatably connected to the outer surface of the first filter seat (22). A positioning ring (26) is fixedly installed inside both the first filter seat (22) and the second filter seat (23). An installation tube (27) is provided between the two sets of positioning rings (26). A filter screen (28) is fixedly installed inside the installation tube (27).

6. The device for circulating and replenishing the silicon oxide texturing solution for solar cells according to claim 5, characterized in that: One side of the processing box (1) is fixedly connected to the bottom of the support frame (18) by a reinforcing plate (29) made of rigid material.

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