A flower basket inclined placing and pulling device for improving dehydration of back contact cells

Abstract

This utility model relates to the technical field of battery cell production equipment, specifically to a tilting and pulling device for improving the dehydration of back-contact batteries. The device includes an acid pickling basket, a chemical solution tank, and a loading platform. The loading platform is equipped with an adjustment module for adjusting the tilt angle of the acid pickling basket. The chemical solution tank contains a support base for maintaining the tilt angle of the acid pickling basket. The bottom of the acid pickling basket has a support plate that works in conjunction with the support base. After adjusting the angle of the acid pickling basket placed on the loading platform using the adjustment module, a hoisting device is used to move the acid pickling basket into the chemical solution tank. Compared to conventional horizontally placed acid pickling baskets, tilting significantly accelerates the outflow rate of the acid or alkaline washing solution, avoiding a large amount of chemical solution carried away when the acid pickling basket leaves the chemical solution tank. Simultaneously, it reduces impurities adhering to the surface of the battery cells by accelerating the flow rate of the processing liquid, thereby improving product quality and performance.

Description

Technical Field

[0001] This utility model relates to the technical field of battery cell production equipment, specifically to a basket-shaped inclined placement and pulling device for improving the dehydration of back-contact batteries. Background Technology

[0002] In the manufacturing process of solar cells, the wet processing step is crucial. Silicon wafers are typically placed in baskets for immersion in various processing solutions, such as cleaning, etching, and texturing. However, the traditional baskets currently in use have revealed numerous problems in practical applications.

[0003] When the basket carrying the silicon wafers is lifted out of the processing liquid tank, due to the horizontal structure of traditional baskets, a large amount of processing liquid adheres to both the basket and the surface of the silicon wafers. This not only wastes the processing liquid and increases production costs, but the excess residual liquid can also introduce impurities into subsequent processes, affecting the performance of solar cells. For example, it can cause short circuits and leakage in the cells, reducing photoelectric conversion efficiency and yield. Furthermore, the liquid residue can corrode production equipment, shortening its lifespan and increasing maintenance costs.

[0004] In the etching process, the traditional horizontally placed baskets cause the chemical solution to flow faster between the silicon wafers than around them during the immersion reaction. This results in inconsistent contact time and degree of contact between different parts of the silicon wafer and the treatment solution, leading to uneven etching effects on the wafer surface. This, in turn, affects key performance indicators such as the textured surface and reflectivity of the solar cell, causing differences in the appearance of the etched surface and impacting the consistency and stability of product quality. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides a basket tilting and pulling device for improving the dehydration properties of back-contact batteries, which increases the speed of the chemical solution by tilting the pickling basket.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a flower basket tilting and pulling device for improving the dehydration of back contact batteries, comprising an acid washing flower basket, a chemical solution tank and a loading platform, wherein the loading platform is provided with an adjustment module for adjusting the tilt angle of the acid washing flower basket, a support base is provided in the chemical solution tank, and a support plate that cooperates with the support base is provided at the bottom of the acid washing flower basket.

[0007] As a further improvement to the above technical solution:

[0008] The support base includes a positioning plate located at the bottom of the medicine tank, and bases are provided at both ends of the positioning plate, with a pad on one of the bases.

[0009] The pickling basket includes two symmetrically distributed limiting plates, with a support rod between the two limiting plates. The two ends of the support plate are respectively connected to the two limiting plates.

[0010] The support plate is provided with a through groove, and the lower surface of the support plate is provided with anti-slip plates that cooperate with the two bases respectively.

[0011] The adjustment module includes a first base and a second base. A storage slot is provided in the middle of the first base and the second base. A sealing plate is provided above the storage slot. A lifting mechanism is provided inside the storage slot.

[0012] The lifting mechanism includes multiple hydraulic cylinders distributed along the length of the storage slot.

[0013] The lower part of the sealing plate is provided with an extension plate that abuts against the inner side wall of the storage groove.

[0014] The beneficial effects of this utility model embodiment are as follows: The inclined placement and pulling device for improving the dehydration of back contact batteries includes an acid washing basket, a chemical tank, and a loading platform. The loading platform is equipped with an adjustment module for adjusting the tilt angle of the acid washing basket. The chemical tank is equipped with a support seat for maintaining the tilt angle of the acid washing basket. The bottom of the acid washing basket is equipped with a support plate that works in conjunction with the support seat. After adjusting the angle of the acid washing basket placed on the loading platform by the adjustment module, the acid washing basket is moved into the chemical tank using a hoisting device. Compared with the conventional horizontal placement of the acid washing basket, the inclined placement can significantly accelerate the outflow rate of the acid washing solution or alkaline washing solution, avoid a large amount of chemical solution carried by the acid washing basket when leaving the chemical tank, and at the same time reduce the impurities adhering to the surface of the battery cells by accelerating the flow rate of the treatment liquid, thereby improving the quality and performance of the product. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the acid-washed flower basket in this utility model;

[0019] Figure 5 This is a top view of the support plate in this utility model;

[0020] Figure 6 This is a schematic diagram of the sealing plate in this utility model.

[0021] In the diagram: 1. Pickling basket; 2. Chemical tank; 3. Loading platform; 4. Support base; 5. Support plate; 6. Positioning plate; 7. Base; 8. Pad; 9. Limiting plate; 10. Through groove; 11. Anti-slip plate; 12. First base; 13. Second base; 14. Storage trough; 15. Sealing plate; 16. Hydraulic cylinder; 17. Extension plate; 18. Support rod. Detailed Implementation

[0022] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0023] like Figure 1-3 As shown, the inclined placement and pulling device for improving the dehydration of back contact batteries in this embodiment includes an acid washing basket 1, a chemical solution tank 2, and a loading platform 3. The loading platform 3 is equipped with an adjustment module for adjusting the tilt angle of the acid washing basket 1. The chemical solution tank 2 is equipped with a support seat 4 for maintaining the tilt angle of the acid washing basket 1. The bottom of the acid washing basket 1 is equipped with a support plate 5 that cooperates with the support seat 4. After adjusting the angle of the acid washing basket 1 placed on the loading platform 3 by adjusting the module, the acid washing basket 1 is moved into the chemical solution tank using a hoisting device. During hoisting, the acid washing basket 1 is kept in an inclined state. The support seat 4 in the chemical solution tank 2 can support and fix the acid washing basket 1 with the adjusted tilt angle. Compared with the conventional horizontal placement of the acid washing basket, the inclined placement can significantly accelerate the outflow rate of the acid washing solution or alkaline washing solution, avoid a large amount of chemical solution carried by the acid washing basket 1 when leaving the chemical solution tank 2, and at the same time reduce the impurities adhering to the surface of the battery cells by accelerating the flow rate of the treatment liquid, thereby improving the quality and performance of the product.

[0024] like Figure 4 As shown, the support base 4 includes a positioning plate 6 located at the bottom of the liquid tank 2. Both ends of the positioning plate 6 are provided with bases 7. One of the bases 7 is provided with a pad 8. After the pad 8 is placed, the height difference between the two bases 7 is the same as the height difference between the two ends of the pickling basket 1, ensuring that the tilt and angle of the pickling basket 1 remain unchanged. At the same time, a width-limiting bracket is installed at both ends of each base 7. A crossbar is provided between the two width-limiting brackets. The crossbar is located at 2 / 3 of the height of the pickling basket 1, limiting the pickling basket 1 on both sides.

[0025] The pickling basket 1 includes two symmetrically distributed limiting plates 9, which are connected by a support rod 18. The support rod 18 has a slot, and the two ends of the support plate 5 are respectively connected to the two limiting plates 9.

[0026] The support plate 5 has a through groove 10 to speed up the passage of the treatment liquid and reduce the resistance when the pickling basket 1 enters and exits the liquid tank 2. The lower surface of the support plate 5 is provided with anti-slip plates 11 that cooperate with the two bases 7 respectively. When in use, the anti-slip plates 11 abut against the side wall of the base 7 to prevent the pickling basket 1 from sliding downward.

[0027] like Figure 5-6 As shown, the adjustment module includes a first base 12 and a second base 13. A storage slot 14 is provided in the middle of the first base 12 and the second base 13. A sealing plate 15 is provided above the storage slot 14. A lifting mechanism is provided inside the storage slot 14. The lifting mechanism includes multiple hydraulic cylinders 16 distributed along the length direction of the storage slot 14. An extension plate 17 is provided at the lower part of the sealing plate 15, which abuts against the inner side wall of the storage slot 14. The extension plate 17 can guide the sealing plate 15 during the lifting and lowering process.

[0028] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0031] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A flower basket inclined and pulled device for improving the dehydration of back contact cells, comprising pickling flower basket (1), chemical liquid tank (2) and feeding table (3), characterized in that: The loading platform (3) is equipped with an adjustment module for adjusting the tilt angle of the pickling basket (1), the liquid tank (2) is equipped with a support base (4), and the bottom of the pickling basket (1) is equipped with a support plate (5) that works in conjunction with the support base (4).

2. The basket tilting and pulling device for improving the dehydration of back contact cells according to claim 1, characterized in that: The support base (4) includes a positioning plate (6) located at the bottom of the medicine tank (2), and bases (7) are provided at both ends of the positioning plate (6), with a pad (8) provided on one of the bases (7).

3. The basket tilting and pulling device for improving the dehydratability of back contact cells according to claim 2, characterized in that: The pickling basket (1) includes two symmetrically distributed limiting plates (9), and a support rod (18) is provided between the two limiting plates (9). The two ends of the support plate (5) are respectively connected to the two limiting plates (9).

4. The basket tilting and pulling device for improving the dehydratability of back contact cells according to claim 2, characterized in that: The support plate (5) is provided with a through groove (10), and the lower surface of the support plate (5) is provided with anti-slip plates (11) that cooperate with the two bases (7).

5. The basket tilting and pulling device for improving the dehydratability of back contact cells according to claim 1, characterized in that: The adjustment module includes a first base (12) and a second base (13). A storage slot (14) is provided in the middle of the first base (12) and the second base (13). A sealing plate (15) is provided above the storage slot (14). A lifting mechanism is provided inside the storage slot (14).

6. The canted lay down device for a flower basket to improve the dehydratability of back contact cells according to claim 5, wherein: The lifting mechanism includes multiple hydraulic cylinders (16) distributed along the length of the storage slot (14).

7. The basket tilting and pulling device for improving the dehydratability of back contact cells according to claim 5, characterized in that: The lower part of the sealing plate (15) is provided with an extension plate (17) that abuts against the inner side wall of the storage groove (14).

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