Water film spreading device of TOPCon battery piece wet etching machine

Abstract

The utility model relates to the technical field of TOPCon battery piece production, and discloses a water film spreading device of a TOPCon battery piece wet etching machine, which comprises an etching machine body, a base is fixedly arranged at the bottom of the etching machine body, a controller is fixedly arranged on one side of the etching machine body, a discharge port is arranged on one side of the etching machine body, and a water film spreading device is arranged on the other side of the etching machine body. Discharging water is formed in the bottom of one side of the etching machine body; the driving spraying device is arranged above and inside the etching machine body, the water tank is arranged, water is sprayed to the conveying block through the water conveying pipe, the conveying block evenly sprays the water to a machined part through the water spraying head, and the connecting plate is arranged; a motor drives a rotating wheel to enable a connecting arm to drive a sliding block to slide in a sliding groove through a second connecting column, a connecting plate swings up and down, a second water spraying head swings to spray a machined part more sufficiently, and the effect of improving the working efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of TOPCon battery sheet production, in particular to a water film spreading device of a TOPCon battery sheet wet etching machine. Background Art

[0002] TOPcon cell is a solar cell with tunnel oxide passivation contact based on the principle of selective carriers. Its cell structure is an N-type silicon substrate cell. An ultra-thin layer of silicon oxide is prepared on the back of the cell, and then a thin layer of doped silicon is deposited. The two together form a passivation contact structure, which effectively reduces surface recombination and metal contact recombination, providing greater space for further improvement of N-PERT cell conversion efficiency.

[0003] During the production of TOPcon cells, the wet etching machine will use spraying water film to protect the surface of the TOPcon cell. Most of the existing wet etching machines spray the water film onto the surface of the TOPcon cell, and then use jets to accelerate the diffusion of the water film to ensure that the water film completely covers the surface of the PERC cell.

[0004] Nowadays, when most wet etching machines are producing TOPcon cells, the nozzles cannot be adjusted to spray water films in different directions more quickly, which reduces work efficiency. Utility Model Content

[0005] The utility model aims to provide a water film spreading device for a TOPCon cell wet etching machine, so as to improve the working efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water film spreading device for a TOPCon battery cell wet etcher, comprising: an etcher body, wherein a base is fixedly installed at the bottom of the etcher body, a controller is fixedly installed at one side of the etcher body, a discharge port is opened at one side of the etcher body, and discharge water is opened at the bottom of one side of the etcher body; a driving spraying device, wherein the driving spraying device is arranged above and inside the etcher body.

[0007] Preferably, rollers are fixedly installed at equal intervals inside the etching machine body, a mounting plate 1 is provided on the top inner wall of the etching machine body, a mounting plate 2 is provided on one side of the mounting plate 1, a mounting frame is provided below the rollers, a filter is fixedly installed inside the mounting frame, a water pipe 1 is provided inside the discharge water, and a purifier is fixedly installed at one end of the water pipe 1.

[0008] Preferably, the driving spray device includes: an air jet portion, which is arranged above and inside the etcher body; a water spraying portion, which is arranged above and inside the etcher body; and a driving adjustment portion, which is arranged above and inside the etcher body.

[0009] Preferably, the jetting part includes: an air pump, which is arranged on the top of the etcher body; an air filter is arranged on the top of the air pump, and an air intake pipe is arranged on one side of the air filter. The air pump and the air filter are further connected. In this embodiment, an air intake pipe is connected, a delivery hose is fixedly installed on one side of the air pump, and a jet head is fixedly installed on one end of the delivery hose.

[0010] Preferably, the water spraying part includes: a water tank, which is fixedly installed on the top of the etcher body; a water pipe is connected to one side of the water tank, and the water pipe movably passes through the top of the etcher body and extends to the interior of the etcher body, and one end of the water pipe is connected to a connecting hose, and one end of the connecting hose is fixedly connected to a conveying block.

[0011] Preferably, telescopic rods are fixedly mounted on the top of the conveying block and the top inner wall of the etching machine body, and there are two sets of telescopic rods in total. Water spray heads are fixedly mounted at equal distances and evenly on the bottom of the conveying block.

[0012] Preferably, the driving and adjusting part includes: a connecting plate, which is arranged on both sides of a mounting plate; a rotating shaft movably penetrates one side of the connecting plate and extends to the other side of the connecting plate, a sliding groove is opened on one side of the connecting plate, a ring is fixedly installed on one end of the connecting plate, and a connecting column is fixedly installed between the ring and the connecting plate.

[0013] Preferably, the slide groove is internally slidably connected with a slider, a connecting column 2 is fixedly installed on one side of the slider, a connecting arm is fixedly installed on one end of the connecting column 2, a connecting shaft 1 is fixedly installed on one end of the connecting arm, a rotating wheel is fixedly installed on one end of the connecting shaft 1, a connecting shaft 2 is fixedly installed on one side of the rotating wheel, and the connecting shaft 2 movably passes through the mounting plate 2, and a motor is fixedly installed on one end of the connecting shaft 2.

[0014] The utility model provides a water film spreading device for a TOPCon cell wet etching machine. It has the following beneficial effects:

[0015] (1) The utility model is provided with an air pump. When it is necessary to spray air on the TOPCon battery cell processing part, the power supply is started, air is sucked into the air filter through the air inlet pipe, and then transmitted to the air nozzle through the air pump to spray air on the TOPCon battery cell, so as to prevent dust and other debris from affecting the coating quality of the TOPCon battery cell, thereby improving work efficiency.

[0016] (2) The utility model is provided with a water tank, and water is sprayed to the conveying block through a water pipe. The conveying block is provided to evenly spray water to the TOPCon battery sheet through a water spray head. The conveying block is provided with a telescopic rod, which can drive the conveying block to move up and down, and can spray TOPCon battery sheets of different sizes. The connecting plate is provided, and when the power is started, the motor drives the rotating wheel to drive the connecting arm to drive the slider to slide inside the slide groove through the connecting column 2, so that the connecting plate swings up and down, and the water spray head swings back and forth, so that the spraying of the TOPCon battery sheet is more uniform, thereby achieving the effect of improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall diagram of the utility model;

[0018] Figure 2 This is the top view of the utility model;

[0019] Figure 3 This is a rear view of the utility model;

[0020] Figure 4 It is a cross-sectional view of the utility model.

[0021] In the figure: 1 etching machine body, 11 rolling roller, 12 mounting plate 1, 13 mounting plate 2, 14 mounting frame, 15 filter screen, 2 base, 3 controller, 4 discharge port, 5 discharge water, 51 water pipe 1, 52 purifier, 6 drive spray device, 61 jet part, 611 air pump, 612 air filter, 613 air inlet pipe, 614 connecting air inlet pipe, 615 delivery hose, 616 jet head, 62 water spray part, 621 water tank, 622 water pipe, 623 connecting hose, 624 delivery block, 625 telescopic rod, 626 water spray head, 63 drive adjustment part, 631 connecting plate, 632 rotating shaft, 633 slide groove, 634 collar, 635 connecting column, 636 slider, 637 connecting column 2, 638 connecting arm, 639 connecting shaft 1, 6310 rotating wheel, 6311 connecting shaft 2, 6312 motor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. Example

[0024] The preferred embodiment of the water film spreading device of the TOPCon cell wet etching machine provided by the utility model is as follows Figure 1-4 As shown: a water film spreading device of a TOPCon battery cell wet etcher, comprising: an etcher body 1, wherein a base 2 is fixedly installed at the bottom of the etcher body 1, a controller 3 is fixedly installed on one side of the etcher body 1, a discharge port 4 is opened on one side of the etcher body 1, and a discharge water 5 is opened at the bottom of one side of the etcher body 1; a driving spraying device 6, and the driving spraying device 6 is arranged above and inside the etcher body 1.

[0025] Rolling rollers 11 are evenly and evenly fixedly installed inside the etching machine body 1, a mounting plate 12 is provided on the top inner wall of the etching machine body 1, a mounting plate 2 13 is provided on one side of the mounting plate 12, a mounting frame 14 is provided below the rolling roller 11, a filter screen 15 is fixedly installed inside the mounting frame 14, a water pipe 51 is provided inside the discharge water 5, a purifier 52 is fixedly installed at one end of the water pipe 51.

[0026] The driving spraying device 6 includes: an air jet portion 61, which is arranged above and inside the etcher body 1; a water spraying portion 62, which is arranged above and inside the etcher body 1; and a driving adjustment portion 63, which is arranged above and inside the etcher body 1.

[0027] The jet part 61 includes: an air pump 611, which is arranged on the top of the etching machine body 1; an air filter 612 is arranged on the top of the air pump 611, and an air intake pipe 613 is arranged on one side of the air filter 612. The air pump 611 and the air filter 612 are further connected. In this embodiment, an air intake pipe 614 is arranged to connect the air pump 611 and the air filter 612. A delivery hose 615 is fixedly installed on one side of the air pump 611, and a jet head 616 is fixedly installed on one end of the delivery hose 615.

[0028] Furthermore, the present embodiment is provided with an air pump 611. When it is necessary to spray air to the TOPCon battery cell, the power supply is started, and air is sucked into the air filter 612 through the air inlet pipe 613. The air is then transmitted to the spray head 616 through the air pump 611 to spray air to the TOPCon battery cell, thereby preventing dust and other debris from affecting the quality of the TOPCon battery cell and improving work efficiency. Example

[0029] On the basis of Example 1, a preferred embodiment of a water film spreading device of a TOPCon cell wet etching machine provided by the utility model is as follows: Figure 1-4 As shown: the water spraying part 62 includes: a water tank 621, which is fixedly installed on the top of the etcher body 1; a water pipe 622 is connected to one side of the water tank 621, and the water pipe 622 movably passes through the top of the etcher body 1 and extends to the inside of the etcher body 1, and one end of the water pipe 622 is connected to a connecting hose 623, and one end of the connecting hose 623 is fixedly connected to a conveying block 624.

[0030] Telescopic rods 625 are fixedly installed on the top of the conveying block 624 and the top inner wall of the etching machine body 1, and there are two sets of them. Water spray heads 626 are fixedly installed at the bottom of the conveying block 624 at equal intervals.

[0031] Furthermore, in this embodiment, a water tank 621 is provided, and water is sprayed toward a conveying block 624 through a water pipe 622. The conveying block 624 is provided to evenly spray water toward the workpiece through a water spray head 626. A telescopic rod 625 is provided to drive the conveying block 624 to move up and down, and different workpieces can be sprayed, thereby achieving the effect of improving work efficiency.

[0032] The driving adjustment part 63 includes: a connecting plate 631, which is arranged on both sides of the mounting plate 12; a rotating shaft 632 movably penetrates one side of the connecting plate 631 and extends to the other side of the connecting plate 631, a sliding groove 633 is opened on one side of the connecting plate 631, and a ring 634 is fixedly installed on one end of the connecting plate 631, and a connecting column 635 is fixedly installed between the ring 634 and the connecting plate 631.

[0033] The slide groove 633 is internally slidably connected with a slider 636, a connecting column 2 637 is fixedly installed on one side of the slider 636, a connecting arm 638 is fixedly installed on one end of the connecting column 2 637, a connecting shaft 1 639 is fixedly installed on one end of the connecting arm 638, a rotating wheel 6310 is fixedly installed on one end of the connecting shaft 1 639, a connecting shaft 2 6311 is fixedly installed on one side of the rotating wheel 6310, and the connecting shaft 2 6311 movably passes through the mounting plate 2 13, and a motor 6312 is fixedly installed on one end of the connecting shaft 2 6311.

[0034] Furthermore, in this embodiment, a connecting plate 631 is provided. When the power is started, the motor 6312 drives the rotating wheel 6310 so that the connecting arm 638 drives the slider 636 to slide inside the slide groove 633 through the connecting column 2 637, so that the connecting plate 631 swings up and down, and the sprinkler head 626 swings to spray the TOPCon battery cell more fully, thereby achieving the effect of improving work efficiency.

[0035] When in use, the workpiece is placed on the roller 11 and an air pump 611 is provided. When the TOPCon battery cell workpiece needs to be sprayed, the power is started, and air is sucked into the air filter 612 through the air inlet pipe 613, and then transmitted to the spray head 616 through the air pump 611 to spray the TOPCon battery cell. Further, by providing a water tank 621, water is sprayed to the conveying block 624 through the water pipe 622, and the water is evenly sprayed to the TOPCon battery cell through the water spray head 626 by the conveying block 624. By providing a telescopic rod 625, the conveying block 624 can be driven to move up and down, and different TOPCon battery cells can be sprayed. Finally, by providing a connecting plate 631, when the power is started, the motor 6312 drives the rotating wheel 6310 to make the connecting arm 638 drive the slider 636 to slide inside the slide groove 633 through the connecting column 2 637, so that the connecting plate 631 swings up and down, and the water spray head 626 swings to spray the TOPCon battery cell more fully.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A water film spreading device for a TOPCon cell wet etching machine, characterized in that: include: Etching machine body (1), A base (2) is fixedly mounted on the bottom of the etching machine body (1), a controller (3) is fixedly mounted on one side of the etching machine body (1), a discharge port (4) is provided on one side of the etching machine body (1), and a discharge water (5) is provided on the bottom of one side of the etching machine body (1); A driven spraying device (6) is arranged above and inside the etching machine body (1).

2. The water film spreading device of a TOPCon cell wet etching machine according to claim 1, characterized in that: Rolling rollers (11) are fixedly installed at equal intervals inside the etching machine body (1); a mounting plate 1 (12) is provided on the top inner wall of the etching machine body (1); a mounting plate 2 (13) is provided on one side of the mounting plate 1 (12); a mounting frame (14) is provided below the rolling roller (11); a filter screen (15) is fixedly installed inside the mounting frame (14); a water pipe 1 (51) is provided inside the discharge water (5); a purifier (52) is fixedly installed at one end of the water pipe 1 (51).

3. The water film spreading device of a TOPCon cell wet etching machine according to claim 1, characterized in that: The driving spraying device (6) comprises: An air jet portion (61), wherein the air jet portion (61) is arranged above and inside the etching machine body (1); A water spraying portion (62), wherein the water spraying portion (62) is arranged above and inside the etching machine body (1); A drive adjustment portion (63), wherein the drive adjustment portion (63) is arranged above and inside the etching machine body (1).

4. The water film spreading device of the TOPCon cell wet etching machine according to claim 3, characterized in that: The jetting portion (61) comprises: An air pump (611), wherein the air pump (611) is arranged on the top of the etching machine body (1); An air filter (612) is arranged on the top of the air pump (611), an air intake pipe (613) is arranged on one side of the air filter (612), an air intake pipe (614) is arranged between the air pump (611) and the air filter (612), a delivery hose (615) is fixedly installed on one side of the air pump (611), and a nozzle (616) is fixedly installed on one end of the delivery hose (615).

5. The water film spreading device of the TOPCon cell wet etching machine according to claim 3, characterized in that: The water spraying part (62) includes: A water tank (621), wherein the water tank (621) is fixedly mounted on the top of the etching machine body (1); A water pipe (622) is provided on one side of the water tank (621), and the water pipe (622) movably passes through the top of the etcher body (1) and extends to the interior of the etcher body (1). A connecting hose (623) is provided on one end of the water pipe (622), and a conveying block (624) is fixedly connected to one end of the connecting hose (623).

6. The water film spreading device of the TOPCon cell wet etching machine according to claim 5, characterized in that: Telescopic rods (625) are fixedly mounted on the top of the conveying block (624) and the top inner wall of the etching machine body (1), and there are two sets of them in total. Water spray heads (626) are fixedly mounted at equal distances on the bottom of the conveying block (624).

7. The water film spreading device of a TOPCon cell wet etching machine according to claim 3, characterized in that: The driving adjustment part (63) includes: A connecting plate (631), wherein the connecting plate (631) is arranged on both sides of the first mounting plate (12); A rotating shaft (632) movably penetrates one side of the connecting plate (631) and extends to the other side of the connecting plate (631). A sliding groove (633) is provided on one side of the connecting plate (631). A collar (634) is fixedly installed on one end of the connecting plate (631). A connecting column (635) is fixedly installed between the collar (634) and the connecting plate (631).

8. The water film spreading device of the TOPCon cell wet etching machine according to claim 7, characterized in that: The slide groove (633) is internally slidably connected with a slider (636), one side of the slider (636) is fixedly installed with a connecting column 2 (637), one end of the connecting column 2 (637) is fixedly installed with a connecting arm (638), one end of the connecting arm (638) is fixedly installed with a connecting shaft 1 (639), one end of the connecting shaft 1 (639) is fixedly installed with a rotating wheel (6310), one side of the rotating wheel (6310) is fixedly installed with a connecting shaft 2 (6311), and the connecting shaft 2 (6311) movably passes through the mounting plate 2 (13), and one end of the connecting shaft 2 (6311) is fixedly installed with a motor (6312).

Images