Coating drying device
The design of the support module and conveyor module with magnetic connection solves the problems of wear and aging of the oven transmission device and inconvenience of disassembly, and realizes efficient production of the battery cell coating process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGWEI SOLAR ENERGY (CHENGDU) CO LID
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-19
AI Technical Summary
In the existing technology, the oven transmission device in the battery cell coating process is prone to wear and aging, requires frequent maintenance and is inconvenient to disassemble, which affects production efficiency.
The support module and the conveyor module are connected by magnetic attraction. The support module carries the battery cells into the oven under the conveyor module. The support module and the conveyor module can be separated with just a little force, which makes them easy to disassemble and clean.
This improved the production efficiency of the cell coating process, reduced machine downtime, and ensured the smooth operation of the coating and drying process.
Smart Images

Figure CN224253380U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery cell manufacturing technology, and more specifically, to a coating and drying device. Background Technology
[0002] With the continuous development of solar cell technology, the coating process of solar cells has become one of the key steps in improving cell performance. In existing technologies, the coating process typically involves using an oven to support the solar cells. Specifically, the oven is equipped with a chain drive to carry and transport the solar cells through the heating zone. This process effectively ensures that the required material is uniformly coated on the surface of the solar cells, and the coating quality is guaranteed through high-temperature curing. However, the existing oven drive system typically uses a chain drive, which makes the oven prone to wear and aging after prolonged operation. To maintain normal equipment operation, the chain drive needs to be maintained and replaced regularly, a process that is not only time-consuming but also affects normal production schedules.
[0003] In summary, the existing battery cell coating process suffers from problems such as frequent maintenance and inconvenient disassembly, which directly affect production efficiency. Utility Model Content
[0004] This invention provides a coating and drying device that ensures easy disassembly, makes it more convenient to use, and improves production efficiency.
[0005] The embodiments of this utility model can be implemented as follows:
[0006] An embodiment of this utility model provides a coating and drying apparatus, which includes:
[0007] Conveying module;
[0008] A support module is used to support the battery cells, and the support module and the conveying module are magnetically connected.
[0009] Optionally, the conveying module includes a conveying motor and a conveying component, the conveying motor and the conveying component are connected, and the support module is installed on the conveying component and magnetically connected to the conveying component.
[0010] Optionally, the conveyor includes a belt and a magnet, the belt is connected to the conveyor motor, the magnet is disposed inside the belt, the support module is installed on the belt, and the support module and the magnet are magnetically connected.
[0011] Optionally, the belt is provided with a plurality of grooves spaced apart along its length, and each groove is fitted with a magnet.
[0012] Optionally, the support module includes multiple support rods, which are arranged sequentially at intervals along the conveying direction of the conveying module, and both ends of the support rods are magnetically connected to the conveying module.
[0013] Optionally, the support module further includes a support portion, which is provided on each of the support rods and is used to support the battery cells.
[0014] Optionally, there are multiple support portions, which are spaced apart along the length of the support rod, and each support portion is used to support a battery cell.
[0015] Optionally, the support includes two opposing support blocks, each of which is used to support two opposing edges of the battery cell.
[0016] Optionally, the support block has a conical surface that contacts the edge of the battery cell to support the battery cell.
[0017] Optionally, at least a portion of the support rod is made of metal.
[0018] The beneficial effects of the coating and drying apparatus of this utility model include, for example:
[0019] This coating and drying device includes a conveying module and a support module for supporting the battery cells. The support module and the conveying module are magnetically connected. During use, the support module and the conveying module are magnetically connected, and the support module, under the conveying module's transport, carries the battery cells into the drying oven. Because the support module and the conveying module are magnetically connected, when cleaning or replacing the support module is required, only slight force is needed to separate the support module and the conveying module, making operation very convenient, ensuring easy disassembly, and improving production efficiency. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a first-view structural schematic diagram of the coating and drying apparatus provided in this embodiment;
[0022] Figure 2 This is a second-view structural schematic diagram of the coating and drying apparatus provided in this embodiment;
[0023] Figure 3This is a third-view structural schematic diagram of the coating and drying apparatus provided in this embodiment.
[0024] Icons: 10-Conveying module; 11-Conveying motor; 12-Conveying component; 121-Belt; 122-Magnet; 20-Supporting module; 21-Supporting rod; 22-Supporting part; 221-Supporting block; 101-Battery cell. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0028] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model 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 utility model.
[0029] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0030] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0031] With the continuous development of solar cell technology, the coating process of solar cells has become one of the key steps in improving cell performance. In existing technologies, the coating process typically involves using an oven to support the solar cells. Specifically, the oven is equipped with a chain drive to carry and transport the solar cells through the heating zone. This process effectively ensures that the required material is uniformly coated on the surface of the solar cells, and the coating quality is guaranteed through high-temperature curing. However, the existing oven drive system typically uses a chain drive, which makes the oven prone to wear and aging after prolonged operation. To maintain normal equipment operation, the chain drive needs to be maintained and replaced regularly, a process that is not only time-consuming but also affects normal production schedules.
[0032] In summary, the existing battery cell coating process suffers from problems such as frequent maintenance and inconvenient disassembly, which directly affect production efficiency.
[0033] Please refer to Figures 1-3 This embodiment provides a coating and drying device that can effectively improve the technical problems mentioned above, ensure easy disassembly and use, and improve production efficiency.
[0034] Please refer to Figures 1-3 The coating and drying device includes a conveying module 10 and a support module 20 for supporting the battery cell 101. The support module 20 and the conveying module 10 are magnetically connected.
[0035] Specifically, in existing technologies, the coating process for solar cells involves uniformly applying a layer of adhesive film to the surface of the cell and then drying it. However, when coating the second side, the first side can only enter the oven facing downwards for baking. The previously applied adhesive slightly melts at the high temperature of the oven, affecting the adhesive film upon contact with the furnace belt, causing damage to the adhesive film on the contact surface and resulting in furnace belt marks. Ultimately, this affects the efficiency of the solar cells. Existing technologies typically use a chain to move a support device supporting the solar cells inside the oven to mitigate furnace belt marks. The chain has multiple connecting plates fixed to it, and the support device is secured to these plates with screws. For easy disassembly of the support device, pins are used inside the oven. Since the support device inside the oven easily carries the applied adhesive during operation, affecting the normal cells, regular cleaning of the support device is necessary. However, disassembling and installing screws is slow and inconvenient, leading to lengthy maintenance times and increased machine downtime. Furthermore, the chain-fixing pin method is unreliable; the pin may loosen when the chain vibrates, causing the support device to fall off. To solve this technical problem, the coating and drying device provided in this embodiment uses a magnetic connection between the support module 20 and the conveying module 10. The support module 20 carries the battery cells 101 into the drying oven under the conveying module 10. Because the support module 20 and the conveying module 10 are magnetically connected, when the support module 20 needs to be cleaned or replaced, it can be separated from the conveying module 10 with only a little force. This operation is very convenient, ensuring easy disassembly and use, and improving production efficiency.
[0036] In this embodiment, the conveying module 10 includes a conveying motor 11 and a conveying component 12. The conveying motor 11 and the conveying component 12 are connected. The support module 20 is installed on the conveying component 12 and is magnetically connected to the conveying component 12.
[0037] Specifically, the conveyor 12 includes a belt 121 and a magnet 122. The belt 121 is connected to the conveyor motor 11, the magnet 122 is disposed inside the belt 121, and the support module 20 is installed on the belt 121, and the support module 20 and the magnet 122 are magnetically connected.
[0038] It should also be noted that in the prior art, the chain inside the oven vibrates significantly during rotation, causing the solar cell 101 to slip to one side while the other side still contacts the bottom of the furnace belt, resulting in damage to the adhesive film. To solve this technical problem, the conveyor module 10 of the coating and drying device provided in this embodiment includes a conveyor motor 11, a belt 121, and a magnet 122. The surface of the belt 121 is smooth, which can avoid vibration during rotation, thereby preventing the solar cell 101 from falling off and preventing furnace belt marks from forming on the surface of the solar cell 101, ensuring the smooth progress of the coating and drying process.
[0039] In this embodiment, there are two belts 121, which are spaced apart on the main frame track of the oven and move synchronously and in the same direction with the conveyor motor 11. In other embodiments, the number of belts 121 can be adjusted according to actual use, and no specific limitation is made here.
[0040] It should be noted that belt 121 is made of high-temperature resistant material to ensure that belt 121 can stably transport materials in the high-temperature environment inside the oven.
[0041] Furthermore, the belt 121 has multiple grooves spaced apart along its length, and a magnet 122 is installed in each groove. The grooves are strip-shaped and located on the top surface of the belt 121. The magnets 122 are embedded in the grooves for installation. When the support module 20 is placed on the belt 121, it can be attracted to the belt 121 by the attraction of the magnets 122, thereby stably transporting the battery cell 101.
[0042] In this embodiment, the support module 20 includes multiple support rods 21, which are arranged sequentially at intervals along the conveying direction of the conveying module 10. Both ends of the support rods 21 are magnetically connected to the conveying module 10. When the two ends of the support rods 21 rest on the two belts 121, the ends of the support rods 21 can be attracted to the belts 121 by the attraction of the magnets 122, thereby achieving the connection between the support rods 21 and the belts 121.
[0043] It should be noted that since the support rod 21 is attached to the belt 121 by the magnet 122, when it is necessary to clean the support rod 21, only a little force is needed to separate the support rod 21 from the belt 121, so that the support rod 21 can be removed for cleaning. Compared with the existing technology, it is no longer necessary to disassemble the screws, making maintenance more convenient.
[0044] It should also be noted that the support module 20 also includes a support part 22. Each support rod 21 is provided with a support part 22, which is used to support the battery cell 101.
[0045] In this embodiment, there are multiple support portions 22, which are spaced apart along the length of the support rod 21, and each support portion 22 is used to support the battery cell 101. Specifically, there are four support portions 22. In other embodiments, the number of support portions 22 may be increased or decreased, and no specific limitation is made here.
[0046] It should be noted that the support portion 22 includes two opposing support blocks 221, which are used to support the two opposing edges of the battery cell 101. Specifically, the support block 221 has a conical surface, which is used to contact the edge of the battery cell 101 to support the battery cell 101.
[0047] Specifically, the support block 221 has a conical block structure. The two support blocks 221 are arranged opposite each other. When the battery cell 101 is mounted on the support rod 21, the edge of the battery cell 101 can be mounted on the conical inclined surface of the support block 221, so that the contact between the battery cell 101 and the support block 221 is a point contact, which reduces the contact area of the battery cell 101. Even if the back adhesive film melts after baking, no furnace belt mark will be produced, thus avoiding affecting the quality of the battery cell 101.
[0048] Furthermore, if the conical surface of the support block 221 on the support rod 21 is contaminated and cannot be cleaned by stopping the machine, the support rod 21 can be rotated so that the contaminated conical surface of the support block 221 is removed and the clean conical surface of the support block 221 is rotated to the bottom of the battery cell 101. There is no need to stop the machine for cleaning, which improves the utilization rate of the machine and further improves the production efficiency.
[0049] In addition, to reduce the weight of the support rod 21, at least a portion of the support rod 21 is made of metal. Specifically, the portion of the support rod 21 corresponding to the magnet 122 is made of metal, while other portions of the support rod 21 can be made of other materials, such as Teflon, etc., without specific limitations.
[0050] The coating and drying apparatus provided in this embodiment has at least the following advantages:
[0051] In existing technologies, the coating process for solar cells involves uniformly applying a layer of adhesive film to the cell surface and then drying it. However, when coating the second side, the first side must enter the oven facing downwards for baking. The previously applied adhesive slightly melts at the high temperature of the oven, affecting the adhesive film upon contact with the furnace belt, causing damage to the adhesive film at the contact surface and resulting in furnace belt marks. Ultimately, this affects the efficiency of the solar cells. Current technologies typically use a chain to move a support device supporting the solar cells inside the oven to mitigate furnace belt marks. The chain has multiple connecting plates, and the support device is fixed to these plates with screws. For easy disassembly of the support device, pins are used inside the oven. However, because the support device inside the oven easily carries adhesive residue during operation, affecting the cells, regular cleaning of the support device is necessary. Disassembling and installing screws is slow and inconvenient, leading to lengthy maintenance times and increased machine downtime. Furthermore, the chain-pin fixing method is unreliable; the pins may loosen when the chain vibrates, causing the support device to fall. To solve this technical problem, the coating and drying device provided in this embodiment is magnetically connected between the support module 20 and the conveying module 10 during use. The support module 20 carries the battery cell 101 into the drying oven under the conveying of the conveying module 10. Since the support module 20 and the conveying module 10 are magnetically connected, when the support module 20 needs to be cleaned or replaced, it can be separated from the conveying module 10 with just a little force. The operation is very convenient, ensuring easy disassembly and making it more convenient to use, thus improving production efficiency.
[0052] The conveying module 10 of the coating and drying device includes a conveying motor 11, a belt 121 and a magnet 122. The surface of the belt 121 is smooth, which can avoid shaking during rotation, thereby preventing the battery cell 101 from falling off and preventing furnace belt marks from forming on the surface of the battery cell 101, ensuring the smooth progress of the coating and drying process.
[0053] In summary, this utility model embodiment provides a coating and drying device, which includes a conveying module 10 and a support module 20 for supporting the battery cell 101. The support module 20 and the conveying module 10 are magnetically connected. During use, the support module 20 and the conveying module 10 are magnetically connected, and the support module 20, under the conveying of the conveying module 10, carries the battery cell 101 into the drying oven. Because the support module 20 and the conveying module 10 are magnetically connected, when the support module 20 needs to be cleaned or replaced, it can be easily separated from the conveying module 10 with only slight force, making operation very convenient, ensuring easy disassembly, and improving production efficiency.
[0054] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A coating and drying apparatus, characterized in that, include: Conveying module (10); A support module (20) is used to support the battery cell (101), and the support module (20) and the conveying module (10) are magnetically connected.
2. The coating and drying apparatus according to claim 1, characterized in that, The conveying module (10) includes a conveying motor (11) and a conveying component (12). The conveying motor (11) and the conveying component (12) are connected. The support module (20) is installed on the conveying component (12) and is magnetically connected to the conveying component (12).
3. The coating and drying apparatus according to claim 2, characterized in that, The conveyor (12) includes a belt (121) and a magnet (122). The belt (121) is connected to the conveyor motor (11). The magnet (122) is disposed inside the belt (121). The support module (20) is installed on the belt (121), and the support module (20) and the magnet (122) are magnetically connected.
4. The coating and drying apparatus according to claim 3, characterized in that, The belt (121) has a plurality of grooves spaced apart along its length, and each groove contains a magnet (122).
5. The coating and drying apparatus according to claim 1, characterized in that, The support module (20) includes multiple support rods (21), which are arranged sequentially at intervals along the conveying direction of the conveying module (10). Both ends of the support rods (21) are magnetically connected to the conveying module (10).
6. The coating and drying apparatus according to claim 5, characterized in that, The support module (20) further includes a support part (22), and each of the support rods (21) is provided with the support part (22), which is used to support the battery cell (101).
7. The coating and drying apparatus according to claim 6, characterized in that, The number of the support parts (22) is multiple, and the multiple support parts (22) are spaced apart along the length direction of the support rod (21). Each support part (22) is used to support the battery cell (101).
8. The coating and drying apparatus according to claim 6, characterized in that, The support portion (22) includes two opposing support blocks (221), which are used to support the two opposing edges of the battery cell (101).
9. The coating and drying apparatus according to claim 8, characterized in that, The support block (221) has a conical surface that is used to contact the edge of the battery cell (101) to support the battery cell (101).
10. The coating and drying apparatus according to any one of claims 5-9, characterized in that, At least part of the support rod (21) is made of metal.