Wet process apparatus and cell sheet manufacturing apparatus
By setting a pressing mechanism on the tank cover of the wet process equipment, the problems of high equipment cost and low production efficiency in the wet process preparation of half-cell batteries are solved, and the stable pressing of silicon wafers and the improvement of production efficiency are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGWEI SOLAR ENERGY (CHENGDU) CO LID
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-14
AI Technical Summary
In the existing wet process for manufacturing half-cell batteries, silicon wafers need to be fixed with basket clamps to prevent them from floating, which leads to high equipment costs and low production efficiency.
A pressing mechanism is installed on the tank cover of the wet process equipment. When the tank cover is closed, the pressing mechanism presses against the silicon wafers in the basket, eliminating the need for handling and installing the pressure rod, and directly pressing the silicon wafers into the basket.
It reduced equipment costs, improved production efficiency, avoided the problem of poor material feeding caused by silicon wafers floating in liquid, and simplified the operation process.
Smart Images
Figure CN224503868U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of solar cell technology, and in particular to a wet process apparatus and solar cell manufacturing equipment. Background Technology
[0002] Half-cell solar cells are gradually becoming the mainstream approach in the photovoltaic industry, but they also face many bottlenecks limiting their development. Currently, in the wet manufacturing process of half-cell solar cells, silicon wafers need to be placed into a tank using a basket for wet processing. The basket is designed with its opening facing upwards. To prevent the silicon wafers from floating in the liquid in the tank during the wet process, which could lead to a series of defects such as misalignment, liquid inclusion, and fragmentation during feeding, pressure bars are usually installed on the basket to press and fix the silicon wafers firmly in the basket.
[0003] Currently, a pressure bar pick-and-place robot needs to be installed at both the loading and unloading positions of the wet processing equipment to pick up and place pressure bars on the basket. Furthermore, the movement of these pressure bars also requires AGV (Automated Guided Vehicle) carts, significantly increasing equipment investment costs. Additionally, the need to pick up and place pressure bars during both loading and unloading processes reduces production efficiency. Utility Model Content
[0004] Therefore, it is necessary to provide a wet process equipment and solar cell manufacturing equipment to address the issues of reducing equipment costs and improving production efficiency.
[0005] In a first aspect, this application provides a wet process apparatus, comprising:
[0006] The trough body is provided with a receiving trough for accommodating the flower basket;
[0007] The groove cover is designed to open and close with the groove opening of the groove body. The groove cover has a closed state that closes the receiving groove and an open state that opens the receiving groove.
[0008] A tablet pressing mechanism is disposed on the slot cover, and when the slot cover is in the closed state, the tablet pressing mechanism can press against the flower basket, and when the slot cover is in the open state, the tablet pressing mechanism is separated from the flower basket.
[0009] The technical solution will be further explained below:
[0010] In one embodiment, the tablet compression mechanism includes:
[0011] Two supports are spaced apart and disposed on the side of the slot cover near the slot body, and when the slot cover is closed, the supports extend into the interior of the receiving slot;
[0012] A pressure rod, one end of which is connected to one of the brackets and the other end of which is connected to the other bracket.
[0013] In one embodiment, the bracket includes a connecting rod, a positioning rod, and a hinge rod. One end of the connecting rod is connected to the groove cover, and the other end of the connecting rod is connected to the positioning rod. One end of the hinge rod is rotatably connected to the positioning rod, and the other end of the hinge rod is connected to the pressure rod.
[0014] When the slot cover is in the closed state, the hinge rod and the positioning rod are set at an angle; when the slot cover is in the open state, the hinge rod and the positioning rod are set parallel to each other.
[0015] In one embodiment, the positioning rod is connected to a rotating shaft, the hinge rod has a rotating hole, and the rotating shaft passes through the rotating hole and is clearance-fitted with the rotating hole.
[0016] In one embodiment, the rotating shaft is fitted with a wear-resistant bushing, and the rotating hole is clearance-fitted with the wear-resistant bushing.
[0017] In one embodiment, the positioning rod has a first side surface, the hinge rod is connected to the first side surface, the first side surface has a groove, the connecting rod is connected in the groove, and the side surface of the connecting rod is recessed into or flush with the first side surface.
[0018] In one embodiment, the hinge rod has a strip-shaped hole through which a connecting shaft passes. The position of the connecting shaft in the strip-shaped hole is adjustable, and the connecting shaft is connected to the pressure rod.
[0019] In one embodiment, the tablet pressing mechanism includes at least two pressure rods, which are spaced apart.
[0020] In one embodiment, the slot cover is provided with at least two pressing mechanisms, which are used to press against each of the flower baskets in a corresponding manner when the slot cover is in the closed state.
[0021] Secondly, this application also provides a battery cell manufacturing apparatus, including the aforementioned wet process apparatus.
[0022] In the aforementioned solar cell manufacturing equipment and wet process apparatus, a pressing mechanism is installed on the tank cover. When the tank cover is closed, the pressing mechanism presses against the basket, thus firmly holding the silicon wafers within the basket. This prevents the wafers from floating in the liquid within the tank, which could lead to problems such as misalignment, liquid contamination, and fragmentation during feeding. Compared to the traditional process that requires AGV carts to transport the pressing rods and then robots to pick up and place the pressing rods on the basket, the wet process equipment of this application can press the silicon wafers into the basket using the pressing mechanism while the tank cover is closed, eliminating the steps of transporting and installing the pressing rods, thereby significantly increasing production efficiency. It also saves on the equipment costs of AGV carts and robots. Attached Figure Description
[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.
[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:
[0026] Figure 1 This is a schematic diagram of the structure of a wet processing equipment according to an embodiment.
[0027] Figure 2 for Figure 1 The side view of the wet processing equipment shown.
[0028] Figure 3 This is a schematic diagram of the tableting mechanism of a wet processing apparatus according to an embodiment.
[0029] Figure 4 This is a schematic diagram of the tableting mechanism of a wet processing apparatus in the closed state.
[0030] Figure 5 This is a schematic diagram of the tableting mechanism of a wet processing apparatus in the closed state.
[0031] Explanation of reference numerals in the attached figures:
[0032] 10. Tableting mechanism; 11. Support; 111. Connecting rod; 112. Positioning rod; 113. Hinge rod; 114. Rotating shaft; 115. Connecting shaft; 116. Groove; 12. Pressing rod; 20. Groove cover; 30. Flower basket. Detailed Implementation
[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0035] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0037] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0038] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0039] One embodiment of this application provides a wet process equipment for performing wet processes on silicon wafers during the manufacturing process of solar cells, wherein the wet process includes, but is not limited to, alkaline polishing, cleaning, etc.
[0040] Specifically, see Figure 1 as well as Figure 2 One embodiment of the wet processing equipment includes a tank (not shown), a tank cover 20, and a tablet pressing mechanism 10.
[0041] The tank is equipped with a container for holding the flower basket 30. Understandably, the container is also used to hold chemical solutions or cleaning solutions required for wet processes.
[0042] The slot cover 20 is engaged with the slot opening of the slot body, and the slot cover 20 has a closed state that closes the receiving slot and an open state that opens the receiving slot. For example, the box cover is rotatably connected to the slot body, so that the slot cover 20 can be opened or closed by flipping the slot cover 20.
[0043] The pressing mechanism 10 is disposed on the slot cover 20, and when the slot cover 20 is in the closed state, the pressing mechanism 10 can press against the basket 30 to compress the silicon wafer in the basket 30. When the slot cover 20 is in the open state, the pressing mechanism 10 is separated from the basket 30 to facilitate the removal and placement of the basket 30 from the slot.
[0044] In the aforementioned wet process equipment, a pressing mechanism 10 is installed on the tank cover 20. When the tank cover 20 is closed, the pressing mechanism 10 presses against the basket 30, thus firmly pressing the silicon wafers in the basket 30. This prevents the silicon wafers from floating in the liquid in the tank, which could lead to problems such as misalignment, liquid carryover, and fragmentation during feeding. Compared to the traditional process that requires an AGV to transport the pressing rod and a robot to pick up and place the pressing rod on the basket 30, the wet process equipment of this application can press the silicon wafers into the basket 30 using the pressing mechanism 10 simultaneously with closing the tank cover 20, eliminating the steps of transporting and installing the pressing rod 12, thereby greatly accelerating production efficiency. It also saves on the equipment costs of the AGV and robot.
[0045] See Figure 3 In one embodiment, the pressing mechanism 10 includes two supports 11 and a pressure rod 12. The two supports 11 are spaced apart on the side of the slot cover 20 near the slot body, and when the slot cover 20 is closed, the supports 11 extend into the receiving slot. One end of the pressure rod 12 is connected to one of the supports 11, and the other end of the pressure rod 12 is connected to the other support 11. Thus, when the slot cover 20 is closed, the pressure rod 12 can press against the basket 30 to press the silicon wafer tightly into the basket 30.
[0046] Furthermore, in one embodiment, the bracket 11 includes a connecting rod 111, a positioning rod 112, and a hinge rod 113. One end of the connecting rod 111 is connected to the groove cover 20, and the other end of the connecting rod 111 is connected to the positioning rod 112. One end of the hinge rod 113 is rotatably connected to the positioning rod 112, and the other end of the hinge rod 113 is rotatably connected to the pressure rod 12, so that the pressure rod 12 can swing relative to the positioning rod 112.
[0047] Specifically, in combination Figure 4 When the slot cover 20 is closed, the hinge rod 113 and the positioning rod 112 are set at an angle. For example, when the slot cover 20 is closed, the hinge rod 113 and the positioning rod 112 are set at a right angle, so as to ensure that the pressure rod 12 can press more stably against the silicon wafer in the basket 30.
[0048] Combination Figure 5 When the slot cover 20 is flipped open to the open state, under the action of gravity, the hinge rod 113 can rotate relative to the positioning rod 112 until the hinge rod 113 is parallel to the positioning rod 112, thereby greatly reducing the length of the pressure rod 12 mechanism and preventing interference between the flower basket 30 and the pressure rod 12 mechanism when picking up or putting down the flower basket 30.
[0049] See Figure 3In one embodiment, the positioning rod 112 is connected to a rotating shaft 114, and the hinge rod 113 has a rotating hole (not shown). The rotating shaft 114 passes through the rotating hole and is clearance-fitted with the rotating hole. By fitting the hinge rod 113 onto the rotating shaft 114 through the rotating hole, relative rotation between the hinge rod 113 and the positioning rod 112 can be achieved. At the same time, by making the rotating shaft 114 clearance-fitted with the rotating hole, wear between the rotating shaft 114 and the hinge rod 113 can be effectively reduced.
[0050] Optionally, in one embodiment, the rotating shaft 114 is fitted with a wear-resistant bushing (not shown), and the rotating hole is clearance-fitted with the wear-resistant bushing. By providing a wear-resistant bushing on the rotating shaft 114, wear between the rotating shaft 114 and the hinge rod 113 can be further reduced. Exemplarily, the wear-resistant bushing can be an oil bushing.
[0051] See Figure 3 In one embodiment, the positioning rod 112 has a first side surface, and the hinge rod 113 is connected to the first side surface. A groove 116 is formed on the first side surface, and the connecting rod 111 is connected in the groove 116. The side surface of the connecting rod 111 is recessed into or flush with the first side surface. In this way, the connecting rod 111 can be prevented from protruding from the first side surface of the positioning rod 112 and affecting the relative rotation between the hinge rod 113 and the positioning rod 112.
[0052] For example, in one embodiment, the connecting rod 111 and the positioning rod 112 can be connected and fixed by screws. In other embodiments, the connecting rod 111 and the positioning rod 112 can also be fixed by adhesive bonding or welding, and there is no limitation here.
[0053] Optionally, in one embodiment, the hinge rod 113 has a strip-shaped hole (not shown), through which a connecting shaft 115 passes. The position of the connecting shaft 115 in the strip-shaped hole is adjustable, and the connecting shaft 115 is connected to the pressure rod 12. Thus, by adjusting the position of the connecting shaft 115 in the strip-shaped hole, the height of the pressure rod 12 can be adjusted, thereby enabling the tablet pressing mechanism 10 to adapt to grooves of different depths or baskets 30 of different heights, improving the applicability of the tablet pressing mechanism 10.
[0054] See Figure 3 In one embodiment, the pressing mechanism 10 includes at least two pressing rods 12, which are spaced apart. By pressing the silicon wafers on the basket 30 simultaneously with at least two pressing rods 12, the pressing effect can be improved, and stress concentration on the silicon wafers can be avoided by the pressing mechanism 10, thus reducing the risk of the pressing mechanism 10 crushing the silicon wafers.
[0055] See Figure 1In one embodiment, the slot cover 20 is provided with at least two pressing mechanisms 10. The pressing mechanisms 10 are used to press against each basket 30 in a corresponding manner when the slot cover 20 is in the closed state, so that the wet process device can perform wet process on the silicon wafers in at least two baskets 30 at the same time, thereby further improving production efficiency.
[0056] This application also provides a battery cell manufacturing apparatus, specifically, a battery cell manufacturing apparatus of any of the above embodiments, a wet process apparatus.
[0057] In the wet process unit of the aforementioned solar cell manufacturing equipment, a pressing mechanism 10 is installed on the tank cover 20. When the tank cover 20 is closed, the pressing mechanism 10 presses against the basket 30, thereby pressing the silicon wafers in the basket 30 firmly within it. This prevents the silicon wafers from floating in the liquid in the tank, which could lead to problems such as misalignment, liquid contamination, and fragmentation during feeding. Compared to the traditional process that requires an AGV to transport the pressing rod 12 and a robot to pick up and place the pressing rod 12 on the basket 30, the wet process equipment of this application can press the silicon wafers firmly into the basket 30 using the pressing mechanism 10 while the tank cover 20 is closed, eliminating the steps of transporting and installing the pressing rod 12, thus greatly accelerating production efficiency. It also saves on the equipment costs of AGVs and robots.
[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0059] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A wet process apparatus, characterized in that, include: The trough is provided with a receiving trough for accommodating the flower basket (30); The groove cover (20) is in a groove opening and closing fit with the groove of the groove body. The groove cover (20) has a closed state that closes the receiving groove and an open state that opens the receiving groove. A tablet pressing mechanism (10) is disposed on the slot cover (20), and when the slot cover (20) is closed, the tablet pressing mechanism (10) can press against the flower basket (30), and when the slot cover (20) is open, the tablet pressing mechanism (10) separates from the flower basket (30).
2. The wet process apparatus according to claim 1, characterized in that, The tablet compression mechanism (10) includes: Two supports (11) are spaced apart on the side of the groove cover (20) near the groove body, and when the groove cover (20) is closed, the supports (11) extend into the interior of the receiving groove; A pressure rod (12), one end of which is connected to one of the brackets (11), and the other end of which is connected to the other bracket (11).
3. The wet process apparatus according to claim 2, characterized in that, The bracket (11) includes a connecting rod (111), a positioning rod (112), and a hinge rod (113). One end of the connecting rod (111) is connected to the groove cover (20), and the other end of the connecting rod (111) is connected to the positioning rod (112). One end of the hinge rod (113) is rotatably connected to the positioning rod (112), and the other end of the hinge rod (113) is connected to the pressure rod (12). When the slot cover (20) is in the closed state, the hinge rod (113) and the positioning rod (112) are set at an angle. When the slot cover (20) is in the open state, the hinge rod (113) and the positioning rod (112) are set parallel to each other.
4. The wet process apparatus according to claim 3, characterized in that, The positioning rod (112) is connected to a rotating shaft (114), the hinge rod (113) has a rotating hole, and the rotating shaft (114) passes through the rotating hole and is clearance-fitted with the rotating hole.
5. The wet process apparatus according to claim 4, characterized in that, The rotating shaft (114) is fitted with a wear-resistant bushing, and the rotating hole is clearance-fitted with the wear-resistant bushing.
6. The wet process apparatus according to claim 3, characterized in that, The positioning rod (112) has a first side surface, the hinge rod (113) is connected to the first side surface, the first side surface has a groove (116), the connecting rod (111) is connected in the groove (116), and the side surface of the connecting rod (111) is recessed into or flush with the first side surface.
7. The wet process apparatus according to claim 3, characterized in that, The hinge rod (113) has a strip-shaped hole, and a connecting shaft (115) passes through the strip-shaped hole. The position of the connecting shaft (115) in the strip-shaped hole is adjustable, and the connecting shaft (115) is connected to the pressure rod (12).
8. The wet process apparatus according to claim 2, characterized in that, The tablet pressing mechanism (10) includes at least two pressure rods (12), which are spaced apart.
9. The wet processing apparatus according to any one of claims 1-8, characterized in that, The slot cover (20) is provided with at least two pressing mechanisms (10), which are used to press against each of the flower baskets (30) in a corresponding manner when the slot cover (20) is in the closed state.
10. A battery cell manufacturing apparatus, characterized in that, The wet processing apparatus includes any one of claims 1-9.