A device for removing liquid from a photovoltaic cell basket

Abstract

The utility model discloses a device suitable for removing photovoltaic cell basket belt liquid belongs to the technical field of photovoltaic cell wet process, including base, with adsorption sponge, the inside hollow upper opening shape cavity of base is seted up, and both sides fixed mounting of cavity have slide rail, and the top of base is located in slide rail, the adsorption sponge detachable installation in the inner chamber of base, the upper surface of adsorption sponge is higher than the top of base, the basket is connected through the engagement mode through the bottom end snap groove and the top slide rail of base, realizes the sliding connection of basket and base, and then makes basket rod and adsorption sponge full contact, is favorable to adsorption sponge and is taken the liquid remaining on basket rod, and then realizes reduces the liquid production of basket bottom rod belt, reduces belt liquid pollution, improves production yield.

Description

Technical Field

[0001] This utility model belongs to the technical field of wet process of photovoltaic cells, and particularly relates to a device suitable for removing liquid from the flower basket of photovoltaic cells. Background Technology

[0002] The wet process, the most crucial step in solar cell production, removes impurities from the silicon wafer surface and creates a specific textured surface. Normally, this is achieved through an immersion chemical reaction. Due to surface tension, after the reaction, the silicon wafer is lifted above the tank, inevitably absorbing a large amount of a mixture of water and chemicals. This mixture cannot be removed promptly, leaving residue at the lower edge of the wafer. Even after washing and slow lifting, the mixture cannot be completely removed, especially at the basket teeth. Often, after detaching from the liquid surface, the teeth remain in tight contact with the wafer, leaving significant liquid residue. During drying, some basket rods are difficult to dry, retaining water droplets and liquid residue. This liquid drips onto the wafer or flows into the basket teeth, causing defects and leaving some residue. After high-temperature processing, this residue can cause burning and rework, ultimately affecting the EL (efficiency) and overall efficiency of the finished cell. The long-term cycle of wet basket cleaning and drying causes the coating on the basket rod to gradually peel off. After the basket is lifted from the tank, if the residual liquid on the silicon wafer cannot drip quickly back into the tank, the basket will be quickly moved to the next tank for etching and cleaning. This will cause chemical liquid cross-contamination, increase the risk of chemical contamination, and reduce the etching and cleaning effect on the silicon wafer.

[0003] To prevent the above problems, the flower baskets need regular maintenance. However, the cost of spraying nano-fluorine coating on the flower baskets during maintenance is very expensive. Therefore, a more cost-effective solution has been designed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a device suitable for removing liquid from the basket of photovoltaic cells to solve the problems mentioned in the background art or achieve better technical effects.

[0005] To solve the above-mentioned technical problems, the inventors of this utility model have derived the technical solution of this utility model through practice and summarization. This utility model discloses a device suitable for removing liquid from the flower basket of photovoltaic cells, including a base and an adsorbent sponge; the base has a hollow, open-top cavity inside, and slide rails are fixedly installed on both sides of the cavity, with the slide rails located at the top of the base; the adsorbent sponge is detachably installed in the inner cavity of the base, and the upper surface of the adsorbent sponge is higher than the top of the base.

[0006] Preferably, the base is fixedly connected to fixed panels at both ends along the slide rail. The fixed panels are located on both sides of the absorbent sponge. Electric telescopic rods are installed inside the fixed panels, and a connecting rod is fixedly connected to the end of each set of electric telescopic rods.

[0007] Preferably, a contact squeezing plate is fixedly connected to the end of the connecting rod, and the contact squeezing plate is located on both sides of the absorbent sponge.

[0008] Preferably, a positioning shaft is horizontally installed inside the base cavity, and the direction of the positioning shaft is perpendicular to the direction of the slide rail.

[0009] Preferably, the positioning shaft is a cylindrical column, and the horizontal height of the positioning shaft is flush with the center line of the contact extrusion plate.

[0010] Preferably, there are two sets of positioning shafts, and the heights of the two sets of positioning shafts are the same.

[0011] Preferably, the positioning shaft includes a fixing member, a limiting member, and a connecting shaft. The fixing member is fixedly installed on the inner arm of the base cavity. The connecting shaft runs through the entire cavity and its two ends are respectively fixed to the fixing member. The limiting member is movably connected to the left and right ends of the connecting shaft.

[0012] Preferably, the absorbent sponge has a cylindrical through hole at its left and right horizontal center lines, and the inner diameter of the through hole is equal to the outer diameter of the positioning shaft.

[0013] Preferably, the bottom of the base cavity is also equipped with a symmetrical inclined plate, which is located at the bottom of the absorbent sponge, and the angle between the inclined plate and the horizontal plane is 5~30°.

[0014] Preferably, a drain outlet is provided between the front and rear inclined plates, and the drain outlet is located at the lower end of the positioning shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) The flower basket of this utility model achieves sliding connection between the flower basket and the base through the engagement of the bottom slot and the top slide rail of the base, thereby enabling the flower basket to move horizontally relative to the base, and thus enabling the flower basket rod to fully contact the adsorbent sponge, which is conducive to the adsorbent sponge absorbing the residual liquid on the flower basket rod, thereby reducing the generation of liquid on the bottom rod of the flower basket, reducing liquid pollution, and improving the production yield.

[0017] (2) The present invention can move the contact squeezing plate closer to or away from the adsorbent sponge by moving the telescopic rod, thereby realizing the squeezing of the adsorbent sponge by the contact squeezing plate, completing the drainage of the adsorbent sponge, which is conducive to the recycling of the adsorbent sponge.

[0018] (3) A circular through hole is provided at the center of the adsorption sponge of this utility model. The inner diameter of the circular through hole is equal to the outer diameter of the positioning shaft. A groove is also provided at the bottom of the adsorption sponge to facilitate the installation and fixing of the adsorption sponge on the positioning shaft or to disassemble and replace it from the positioning shaft. Attached Figure Description

[0019] Figure 1 This is a perspective view of the device of the present invention for removing liquid from the flower basket of photovoltaic cells;

[0020] Figure 2 This is a side sectional view of the device for removing liquid from the flower basket of photovoltaic cells according to this utility model, when it contains a set of positioning shafts.

[0021] Figure 3 This is a side sectional view of the device for removing liquid from the flower basket of photovoltaic cells according to this utility model, when it contains two sets of positioning shafts;

[0022] Figure 4 This is a front view of the flower basket matched with the device of this utility model for removing liquid from flower baskets of photovoltaic cells;

[0023] Figure 5 A top view of the flower basket that matches the device of this utility model for removing liquid from photovoltaic cell flower baskets;

[0024] Figure 6 This is a top view of the device of this utility model for removing liquid from the flower basket of photovoltaic cells;

[0025] Figure 7 This is a partial schematic diagram of the device of this utility model for removing liquid from the flower basket of photovoltaic cells;

[0026] Figure 8 This is a schematic diagram of the positioning shaft in the device of this utility model for removing liquid from the flower basket of photovoltaic cells;

[0027] Figure 9 This is a schematic diagram illustrating the working principle of the electric telescopic pole of this utility model.

[0028] Figure 10 This utility model relates to an electric telescopic rod and a connecting rod.

[0029] Figure label:

[0030] 1. Abutment;

[0031] 2. Slide rail;

[0032] 3. Absorbent sponge;

[0033] 4. Contact extrusion plate;

[0034] 5. Positioning shaft; 501. Fixing component; 502. Limiting component; 503. Connecting shaft;

[0035] 6. Fix the panel;

[0036] 7. Connecting rod;

[0037] 8. Inclined plate;

[0038] 9. Drainage outlet;

[0039] 10. Drainage holes;

[0040] 11. Card slot;

[0041] 12. Flower basket pole;

[0042] 13. Flower basket base;

[0043] 14. Electric telescopic pole;

[0044] 15. Fixing groove;

[0045] 16. Connectors. Detailed Implementation

[0046] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to specific examples.

[0047] Example 1

[0048] Please see the appendix Figures 1-9 A device for removing liquid from photovoltaic cell baskets includes a base 1, an adsorption sponge 3, contact squeezing plates 4 tightly attached to both sides of the adsorption sponge 3, and a basket. The adsorption sponge 3 and the contact squeezing plates 4 are both installed inside the base 1, and the basket is located at the top of the base 1. Slide rails 2 are fixedly connected to the top of both sides of the base 1, and slots 11 are fixedly connected to the bottom of both sides of the basket. The inner diameter of the slots 11 is slightly larger than the outer diameter of the slide rails 2, so that the slots 11 and the slide rails 2 can just mesh. The basket achieves a sliding connection with the base through the meshing of the bottom slots 11 and the top slide rails 2 of the base 1, thereby enabling the basket to move horizontally relative to the base 1.

[0049] The front and rear ends of the base 1 are fixedly connected to fixed panels 6. Several sets of fixed grooves 15 are opened on the side of the fixed panel 6 near the adsorption sponge 3. Several sets of electric telescopic rods 14 are installed inside the fixed panel 6. Each set of electric telescopic rods 14 is fixed through the fixed grooves 15. The output end of the electric telescopic rod 14 is fixedly connected to a connecting rod 7. The other end of the connecting rod 7 is fixedly connected to the contact extrusion plate 4. The operation of the electric telescopic rod 14 can drive the connecting rod 7 to move horizontally back and forth, so that the connecting rod 7 drives the contact extrusion plate 4 to move closer to or away from the adsorption sponge 3, so as to realize the extrusion of the adsorption sponge 3 by the contact extrusion plate 4.

[0050] Preferably, the electric telescopic pole 14 is fixedly connected to the connecting rod 7 through the connector 16, which improves the stability of the connecting rod 7 while further strengthening the connection between the two.

[0051] Positioning shafts 5 are fixedly installed on the inner sides of the left and right ends of the base 1. The positioning shafts 5 are cylindrical columns, and their horizontal height is flush with the center line of the contact extrusion plate 4. A circular through hole is opened at the center of the adsorption sponge 3. The inner diameter of the circular through hole is equal to the outer diameter of the positioning shaft 5. A groove is also opened at the bottom of the adsorption sponge 3 to facilitate the installation and fixing of the adsorption sponge 3 on the positioning shaft 5 or to disassembly and replacement from the positioning shaft 5.

[0052] The flower basket also includes a flower basket base 13. Several sets of flower basket rods 12 are connected between the flower basket bases 13 at the left and right ends. Each flower basket base 13 has a C-shaped slot 11 at its bottom. The flower basket can move horizontally on the base 1 through the engagement of the slot 11 with the top slide rail 2 of the base 1. This allows the flower basket rods 12 to fully contact the absorbent sponge 3, which helps the absorbent sponge 3 absorb the residual liquid on the flower basket rods 12. This reduces the amount of liquid on the bottom rods of the flower basket, reduces liquid contamination, and improves production yield.

[0053] The contact squeezing plate 4 is installed on the front and rear sides of the adsorption sponge 3. The contact squeezing plate 4 is directly facing the adsorption sponge 3 to ensure that the adsorption sponge 3 is subjected to uniform force when the contact squeezing plate 4 squeezes the adsorption sponge 3. This can remove the liquid in the adsorption sponge 3 while avoiding damage, which facilitates the recycling of the adsorption sponge 3 and reduces the operating cost of the entire device.

[0054] Preferably, an auxiliary rod 701 is sleeved at one end of the connecting rod 7 extending to the fixed panel 6. The auxiliary rod 701 can better support the telescopic movement of the connecting rod 7 and prevent shaking during the telescopic movement.

[0055] At the bottom of the base 1 and directly opposite the bottom of the absorbent sponge 3, there are symmetrical inclined plates 8. The angle of the inclined plates 8 is between 5 and 30°, and a drain outlet 9 is opened between the bottom ends of the two inclined plates 8. When the contact squeezing plate 4 squeezes the absorbent sponge 3, the squeezed liquid will flow along the hydrophobic holes 10 to the inclined plates 8 under the action of gravity, and then fall into the drain outlet 9 along the inclined plates 8, and finally be discharged from the device through the drain outlet 9.

[0056] Example 2

[0057] like Figure 6 and Figure 7As shown, unlike Embodiment 1, positioning shafts 5 are fixedly installed on the inner sides of the left and right ends of the base 1. The positioning shafts 5 include fixing members 501, limiting members 502 and connecting shafts 503. The fixing members 501 are fixedly installed on the inner side of the base 1, and the two ends of the connecting shaft 503 are fixed on the fixing members 501 on the left and right sides respectively. The limiting members 502 are movably connected to the left and right sides of the connecting shaft 503 and can move on the connecting shaft 503 by rotation, thereby limiting the connecting shaft 503.

[0058] When removing the bottom liquid from the flower basket, an absorbent sponge 2 of appropriate size can be installed on the positioning shaft 5 according to the actual size of the flower basket. Then, by limiting the distance of the limiting member 502 on the connecting shaft 503, the effective length of the entire connecting shaft 503 can be adjusted, thereby fixing the absorbent sponge 2.

[0059] Example 3

[0060] The difference from Embodiment 1 is that positioning shafts 5 are fixedly installed on the inner sides of the left and right ends of the base 1. The positioning shafts 5 are cylindrical columns, and their horizontal height is flush with the center line of the contact extrusion plate 4. There are two sets of positioning shafts 5. Two sets of circular through holes are opened in the middle of the adsorption sponge 3. The two sets of circular through holes are adapted to the two sets of positioning shafts 5. The two sets of positioning shafts 5 can fix the adsorption sponge 3 more stably and prevent the adsorption sponge 3 from tilting during the adsorption process, which would affect the adsorption efficiency.

[0061] Example 4

[0062] The working principle of this utility model is as follows: the absorbent sponge 3 is installed on the positioning shaft 5, and then the flower basket to be treated is placed on the upper end of the base 1. The slot 11 at the bottom of the flower basket is aligned with the slide rail 2 at the top of the base 1 and then engaged. At this time, the absorbent sponge 3 in the base 1 can make good contact with the flower basket rod 12 in the flower basket and quickly absorb the residual liquid on the flower basket rod 12.

[0063] The flower basket is slid horizontally along the slide rail 2. As the flower basket moves, the flower basket rod 12 can rub back and forth on the absorbent sponge 3, further enhancing the adsorption of residual liquid on the flower basket rod 12 by the absorbent sponge 3.

[0064] As the device operates and the number of adsorption cycles accumulates, the adsorption capacity of the adsorption sponge 3 decreases significantly after it has adsorbed too much liquid. At this point, it becomes difficult to effectively adsorb and remove residual liquid from the basket stem 12. The adsorption sponge needs to be compressed to remove the internal liquid.

[0065] At this time, the power supply 14 is turned on, and the moving rod 701 in the connecting rod 7 begins to extend and retract in the horizontal direction, driving the contact squeezing plate 4 to move closer to the adsorbent sponge 3, so that the contact squeezing plate 4 squeezes the adsorbent sponge 3, squeezing out most of the liquid in the adsorbent sponge 3, and under the action of gravity, it flows along the hydrophobic holes 10 to the inclined plate 8, and then falls into the drain outlet 9 along the inclined plate 8, and finally is discharged from the device through the drain outlet 9. The device can be used repeatedly without replacement or maintenance.

[0066] In addition, when removing the bottom liquid on the basket handle 12, this utility model can first install an absorbent sponge 2 of appropriate size on the positioning shaft 5 according to the actual size of the basket, and then adjust the effective length of the entire connecting shaft 503 by limiting the distance of the limiting member 502 on the connecting shaft 503, thereby fixing the absorbent sponge 2, which can adapt to the removal of bottom liquid from baskets of various sizes.

Claims

1. A device suitable for removing liquid from the basket of photovoltaic cells, characterized in that, It includes a base (1) and an absorbent sponge (3); the base (1) has a hollow, open cavity inside, and slide rails (2) are fixedly installed on both sides of the cavity, with the slide rails (2) located at the top of the base (1); the absorbent sponge (3) is detachably installed in the cavity of the base (1), and the upper surface of the absorbent sponge (3) is higher than the top of the base (1).

2. The apparatus for removing liquid from the flower basket of photovoltaic cells according to claim 1, characterized in that, The base (1) is fixedly connected to two ends of the slide rail (2) with fixed panels (6) respectively. The fixed panels (6) are located on both sides of the absorbent sponge (3). Electric telescopic rods (14) are installed inside the fixed panels (6). Each set of electric telescopic rods (14) is fixedly connected to a connecting rod (7) at the end.

3. The apparatus for removing liquid from the flower basket of photovoltaic cells according to claim 2, characterized in that, The end of the connecting rod (7) is fixedly connected to a contact squeezing plate (4), which is located on both sides of the adsorption sponge (3).

4. The apparatus for removing liquid from the flower basket of photovoltaic cells according to claim 1, characterized in that, A positioning shaft (5) is horizontally installed inside the cavity of the base (1), and the direction of the positioning shaft (5) is perpendicular to the direction of the slide rail (2).

5. The apparatus for removing liquid from the flower basket of photovoltaic cells according to claim 4, characterized in that, The positioning shaft (5) is a cylindrical column, and the horizontal height of the positioning shaft (5) is flush with the center line of the contact extrusion plate (4).

6. The apparatus for removing liquid from the flower basket of photovoltaic cells according to claim 5, characterized in that, There are two sets of positioning shafts (5), and the heights of the two sets of positioning shafts (5) are the same.

7. The apparatus for removing liquid from the flower basket of photovoltaic cells according to any one of claims 4 to 6, characterized in that, The positioning shaft (5) includes a fixing member (501), a limiting member (502) and a connecting shaft (503). The fixing member (501) is fixedly installed on the inner arm of the cavity of the base (1). The connecting shaft (503) runs through the entire cavity and its two ends are respectively fixed on the fixing member (501). The limiting member (502) is movably connected to the left and right ends of the connecting shaft (503).

8. The apparatus for removing liquid from the flower basket of photovoltaic cells according to claim 1, characterized in that, The adsorbent sponge (3) has a cylindrical through hole at the left and right horizontal center lines, and the inner diameter of the through hole is equal to the outer diameter of the positioning shaft (5).

9. The apparatus for removing liquid from the flower basket of photovoltaic cells according to claim 1, characterized in that, The bottom of the cavity of the base (1) is also equipped with a symmetrical inclined plate (8), which is located at the bottom of the adsorption sponge (3) and the angle between the inclined plate (8) and the horizontal plane is 5~30°.

10. The apparatus for removing liquid from the flower basket of photovoltaic cells according to claim 9, characterized in that, A drain outlet (9) is provided between the front and rear inclined plates (8), and the drain outlet (9) is located at the lower end of the positioning shaft (5).

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