Process box turnover device and battery piece side wall passivation feeding equipment

Abstract

The utility model discloses a process box turnover device and battery piece side wall passivation feeding equipment, which are used for adjusting the orientation of an opening of a process box, fixing columns are arranged on two opposite side walls of the process box, the turnover device comprises a fixing frame used for bearing the process box, and the fixing frame is used for supporting the process box. Clamping grooves allowing the fixing columns to be clamped in are formed in the two opposite side walls of the fixing frame, telescopic rods are arranged at notches of the clamping grooves, the telescopic rods stretch out and draw back relative to the notches to control the notches to be opened or closed, when the notches are closed, the fixing columns are locked in the notches, and when the notches are closed, the fixing columns are locked in the notches. The process box is fixed relative to the fixing frame, and the fixing frame is controlled by a rotating mechanism to rotate. According to the technical box turnover device, stable and rapid turnover of the technical box can be achieved, so that the orientation of the opening of the technical box is consistent with the orientation of the piece box, the battery pieces can be conveniently and rapidly transferred into the technical box from the piece box, and the feeding speed of the battery pieces is increased.

Description

Technical Field

[0001] This utility model relates to the field of silicon wafer production technology, and in particular to a process box flipping device and a battery cell sidewall passivation feeding device. Background Technology

[0002] TOPCon cells are a type of solar cell technology based on the selective carrier principle with tunneled oxide passivated contacts. The cell structure is an N-type silicon substrate cell, with an ultrathin silicon oxide layer fabricated on the back side, followed by the deposition of a doped silicon thin layer. The two together form a passivated contact structure, which effectively reduces surface recombination and metal contact recombination, providing greater potential for further improvement in the conversion efficiency of N-PERT cells.

[0003] Currently, TOPCon cell cutting is completed at the module end, which uses laser scribing to cut the cells. However, this laser scribing method causes damage to the cell cutting surface and does not passivate the cutting surface. Deep energy level recombination caused by interface impurities can easily lead to large interface recombination, resulting in cell performance loss and reduced power.

[0004] To improve the dicing loss problem of modules, there are two main solutions. One is to coat the cut surface with a passivation material, such as using silicon dioxide passivation paste to coat or spin-coat the cut surface to passivate it. The second is to deposit a film after cutting, using PECVD or ALD deposition equipment to deposit an aluminum oxide dielectric film on the sides of the stacked cells.

[0005] However, both of these methods require the diced cells to be re-stacked before loading, and the existing equipment cannot be used for sidewall passivation loading. Therefore, there is an urgent need for a loading device for sidewall passivation.

[0006] Normally, solar cells are stacked vertically in storage cassettes, meaning they are placed horizontally with the cassette opening facing to the side. However, in passivation process cassettes, the solar cells are required to be arranged horizontally, meaning they are placed vertically with the process cassette opening facing upwards. This makes it difficult for the solar cells to be quickly transferred from the cassette to the process cassette. Therefore, a device is needed to control the orientation of the process cassette opening. Utility Model Content

[0007] To solve at least one of the above-mentioned technical problems, this utility model proposes a process box flipping device and a battery cell sidewall passivation feeding device.

[0008] The technical solution adopted by this utility model is as follows: On the one hand, a process box flipping device is designed to adjust the opening orientation of the process box. Fixed posts are provided on two opposite side walls of the process box. The flipping device includes a fixed frame for supporting the process box. The two opposite side walls of the fixed frame are provided with slots for the fixed posts to be inserted. A telescopic rod is provided at the opening of the slot. The telescopic rod extends and retracts relative to the opening to control the opening to open or close. When the opening is closed, the fixed posts are locked in the opening, so that the process box is fixed relative to the fixed frame. The fixed frame is rotated by a rotating mechanism.

[0009] In some embodiments, at least two fixing posts are provided on each side wall of the process box, and a slot corresponding to each fixing post is provided on the side wall of the fixing frame.

[0010] In some embodiments, each of the fixed frames has two slots on its side wall, and a bidirectional cylinder is provided between the two slots. The bidirectional cylinder controls the two telescopic rods to extend and retract relative to the two slots respectively.

[0011] In some embodiments, a top rod is provided below the fixed frame, and when the process box is flipped over, the top rod rises to support the side wall of the process box.

[0012] In some embodiments, a conveyor belt is also included, comprising two parallel belt bodies, and a fixed frame is located on a lifting frame between the two belt bodies. The fixed frame and the lifting frame are rotatably connected by a rotating shaft. The rotating mechanism controls the fixed frame to rotate relative to the lifting frame about the rotating shaft. The lifting frame causes the fixed frame to move up and down relative to the conveyor belt, thereby transferring the process box between the conveyor belt and the fixed frame.

[0013] In some embodiments, the other two opposite sidewalls of the process box are respectively provided with support columns, so that when the fixed frame descends relative to the conveyor belt, the support columns can support the conveyor belt.

[0014] In some embodiments, a lid-removing assembly is provided above the fixed frame, the lid-removing assembly being used to remove or place the lid of the process box.

[0015] On the other hand, a battery cell sidewall passivation feeding device is designed, including the process box flipping device and a cell feeding device. The cell feeding device includes a cell box and a conveying component for conveying the cell between the cell box and the process box. The conveying component takes the cell out of the cell box and places the cell horizontally into the process box on the fixed frame.

[0016] In some embodiments, the sheet feeding device further includes a conveying component for conveying sheets, sheet cassette transfer components located on both sides of the conveying component, and a suction cup component located above the conveying component and the sheet cassette transfer component. The suction cup component moves between the conveying component and the sheet cassette transfer component to convey the sheet from the conveying component to the sheet cassette of the sheet cassette transfer component. The end of the sheet cassette transfer component is adjacent to a transverse transfer component, which conveys the sheet cassette on the sheet cassette transfer component to the sheet placement component position for the handling component to grasp.

[0017] In some embodiments, a connecting component corresponding to the process box flipping device is also included, which transfers the process box between the process box flipping device and the sidewall passivation machine.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The process box flipping device of this utility model can realize the stable and rapid flipping of the process box, so that the opening of the process box is aligned with the orientation of the cell box, thereby facilitating the rapid transfer of the cell box from the cell box into the process box and improving the feeding speed of the cell box.

[0020] Both sides of the transmission component are equipped with cell tray transfer components, and the traverse component simultaneously docks with the cell tray transfer components on both sides. After one cell tray is full, the suction cup component picks up the cells and places them into the cell tray on the other side. At the same time, the cell tray transfer component transports the full cell tray to the traverse component, thus automatically and continuously feeding cells and improving the feeding speed of cells. Attached Figure Description

[0021] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings. To illustrate the details and facilitate understanding of its principles, the drawings are not necessarily to scale, and similar reference numerals may describe similar components in different views. The accompanying drawings generally illustrate the embodiments discussed herein by way of example and not limitation. Wherein:

[0022] Figure 1 This is a side view of the flipping device.

[0023] Figure 2 This is an isometric schematic diagram of the flipping device.

[0024] Figure 3 This is a schematic diagram of a craft box with its opening facing upwards, mounted on a flipping device.

[0025] Figure 4 yes Figure 3 A schematic diagram of the process box after it has been rotated 90 degrees.

[0026] Figure 5 yes Figure 3 Enlarged diagram of point A in the middle.

[0027] Figure 6 This is a schematic diagram of a flipping device equipped with a lid-removing component.

[0028] Figure 7 This is a schematic diagram of the sidewall passivation feeding equipment.

[0029] Figure 8 This is a top view schematic diagram of the sidewall passivation feeding equipment.

[0030] In the diagram, 1. Process box; 101. Fixed column; 102. Support column; 2. Sheet box; 3. Fixed frame; 301. Slot; 4. Telescopic rod; 5. Rotating mechanism; 6. Two-way cylinder; 7. Top rod; 8. Belt body; 9. Lifting frame; 10. Connecting assembly; 11. Cover removal assembly; 12. Handling assembly; 13. Transmission assembly; 14. Sheet box circulation assembly; 15. Suction cup assembly; 16. Lateral movement assembly; 17. Sheet placement assembly position; 18. Rotating shaft; 19. Lifting device. Detailed Implementation

[0031] The following are specific embodiments of this utility model, and the technical solution of this utility model will be further described with reference to the accompanying drawings. However, this utility model is not limited to these embodiments, and the following embodiments do not limit the utility model involved in the claims. In addition, all combinations of features described in the embodiments are not necessarily necessary for the solution of the utility model.

[0032] The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0033] Example

[0034] like Figure 1 , 2 As shown, a process box flipping device is used to adjust the opening orientation of a process box 1. The process box 1 is a rectangular box with a bottom surface and four side walls. Two opposite side walls of the process box 1 are provided with outwardly protruding fixing posts 101. The flipping device includes a fixing frame 3 for supporting the process box 1. Two opposite side walls of the fixing frame 3 are provided with slots 301 for the fixing posts 101 to be inserted. The fixing frame 3 is a U-shaped frame, which includes a bottom plate and two opposite side plates connected to both ends of the bottom plate. The slots 301 are formed on the side plates. After the fixing posts 101 on the process box 1 are inserted into the slots 301, the process box 1 is fixed inside the fixing frame 3.

[0035] like Figure 3 , 4As shown in Figure 5, the slot 301 is provided with a telescopic rod 4. The telescopic rod 4 extends and retracts relative to the slot to control the opening or closing of the slot. That is, the telescopic rod 4 moves between the opposite sides of the slot to block or open the slot. When the slot is closed, the fixing post 101 is locked in the slot, so that the fixing post 101 cannot be moved out of the slot after being inserted. In this way, the fixing post 101 is fixed in the slot 301, thereby fixing the process box 1 relative to the fixing frame 3. The fixing frame 3 is controlled to rotate by the rotating mechanism 5, thereby simultaneously driving the process box 1 connected to the fixing frame 3 to rotate. This can achieve a 90-degree flip of the process box, so that the opening of the process box is aligned with the opening of the cell box, which facilitates the movement of the battery cells from the cell box into the process box.

[0036] To improve the firmness of the connection between the process box 1 and the fixing frame 3, at least two fixing posts 101 are provided on each side wall of the process box 1, and a corresponding slot 301 is provided on the side wall of the fixing frame 3. In this embodiment, two parallel fixing posts 101 are provided on each side wall of the process box 1, and two corresponding slots 301 are provided on the side wall of the fixing frame 3. A bidirectional cylinder 6 is provided between the two slots 301. The bidirectional cylinder 6 controls the extension and retraction of two telescopic rods 4 relative to the two slots 301 respectively. The bidirectional cylinder 6 is a cylinder with two telescopic rods 4, which can synchronously control the extension and retraction of the two telescopic rods 4, thereby synchronously controlling the opening or closing of the two slots 301. When the telescopic rods 4 extend, they seal the slot openings.

[0037] A top rod 7 is provided below the fixed frame 3. The top rod 7 can be raised and lowered by a telescopic device such as a cylinder. When the opening of the process box 1 is flipped from facing upward to facing one side, the lower side wall of the process box 1 is opposite to the top rod 7. At this time, the top rod 7 rises to support the side wall of the process box 1 and holds the process box 1 in place, so that the flipped process box 1 remains stable.

[0038] Furthermore, it also includes a conveyor belt for conveying the process box 1. The conveyor belt includes two parallel belt bodies 8. The fixed frame 3 is located on a lifting frame 9 between the two belt bodies 8. The fixed frame 3 and the lifting frame 9 are rotatably connected via a rotating shaft 18. The rotating mechanism 5 controls the fixed frame 3 to rotate relative to the lifting frame 9 around the rotating shaft 18. Specifically, the rotating shaft 18 is fixedly connected to the fixed frame 3. The rotating shaft 18 is rotatably supported on the lifting frame 9. A motor is installed on the lifting frame 9. The motor controls the rotating shaft 18 to rotate, thereby driving the fixed frame 3 to rotate.

[0039] like Figure 6 As shown, the lifting frame 9 can be controlled to move up and down by a lifting device 19 such as a cylinder. This allows the lifting frame 9 to drive the fixed frame 3 to move up and down relative to the conveyor belt, thereby transferring the process box 1 between the conveyor belt and the fixed frame 3. Specifically, support columns 102 are respectively provided on the other two opposite side walls of the process box 1. When the fixed frame 3 descends relative to the conveyor belt, the support columns 102 can support the conveyor belt. At this time, the bidirectional cylinder 6 causes the telescopic rod 4 to retract, and the fixed frame 3 continues to descend. Since the support columns 102 are supported on the conveyor belt, they will not continue to descend with the fixed frame 3, thereby causing the fixed column 101 to disengage from the slot 301, thus allowing the process box 1 to be transferred. The process box 1 is carried on the conveyor belt, which can then transport the process box 1 to the next station. In this embodiment, the next station is the connecting assembly 10, which transports the process box 1 between the process box 1 flipping device and the sidewall passivation machine. In this embodiment, the connecting assembly 10 is also a conveyor belt, which can rotate around a vertical axis, so that the direction of the connecting assembly conveyor belt can be changed as needed. In this embodiment, when the connecting assembly conveyor belt rotates to be parallel to the conveyor belts on both sides of the fixed frame 3, the process box 1 can be transported between the two. When the connecting assembly conveyor belt rotates another 90 degrees, it becomes perpendicular to the conveyor belts on both sides of the fixed frame. At this time, the connecting assembly conveyor belt corresponds to the sidewall passivation machine, so that the process box can be sent into or removed from the sidewall passivation machine.

[0040] like Figure 6 As shown, a lid-removing assembly 11 is also provided above the fixed frame 3. The lid-removing assembly 11 is used to remove or put the lid of the process box 1. The lid-removing assembly 11 can be, for example, a simple mechanical gripper, so as to grasp or put the lid. In short, it can realize the grasping and moving of the lid.

[0041] like Figure 7 , 8 As shown, as a battery cell sidewall passivation feeding device, it also includes a cell feeding device. The cell feeding device includes a cell box 2 and a conveying assembly 12 for conveying cells between the cell box 2 and the process box 1. In this embodiment, the conveying assembly 12 is a robotic arm capable of batch grabbing battery cells. In this embodiment, the cell is a battery cell. After the conveying assembly 12 takes the cell out of the cell box 2, it makes the cell horizontally placed into the process box 1 on the fixed frame 3.

[0042] In the cell box 2, the cells are stacked vertically, while in the process box 1, the cells are required to be arranged horizontally with the opening facing upwards. If the cell box is placed into the process box 1 by the transport component 12, the cells need to be changed from vertical to horizontal and then from horizontal to downwards, which involves a lot of travel and movement. If the process box 1 is flipped, the robotic arm only needs to change the cells from vertical to horizontal, which is simple and has a short travel, thus improving production efficiency.

[0043] The sheet feeding device further includes a conveying component 13 for conveying sheets, sheet cassette 2 transfer components located on both sides of the conveying component 13, and a suction cup assembly 15 located above the conveying component 13 and the sheet cassette 2 transfer components. The conveying component 13 is, for example, a conveyor belt assembly for conveying battery sheets, and the sheet cassette 2 transfer components are another set of conveyor belts capable of carrying and moving the sheet cassettes. The suction cup assembly 15 includes a bridge located above the conveying component 13 and the sheet cassette 2 transfer components. Suction cups that move along the bridge are provided on the bridge. Sheet cassettes 2 are placed on the sheet cassette 2 transfer components, and the suction cups of the suction cup assembly 15 transport the battery sheets from the conveying component 13 to the sheet cassettes 2 on the sheet cassette 2 transfer components. After the cell tray 2 is filled with battery cells, the cell tray 2 transfer assembly transports the cell tray 2 to the transverse transfer assembly 16. The transverse transfer assembly 16 is adjacent to the end of the cell tray 2 transfer assembly. The transverse transfer assembly 16 then transfers the cell tray 2 from the cell tray 2 transfer assembly to the cell placement assembly position 17 for the handling assembly 12 to grasp. The transverse transfer assembly 16 can be, for example, a transverse robotic arm or a conveyor belt, which can transport the cell tray 2 to the cell picking assembly position.

[0044] Both sides of the transmission component 13 are equipped with cell tray 2 transfer components, and the lateral movement component 16 simultaneously docks with the cell tray 2 transfer components on both sides. After one cell tray 2 is full, the suction cup component 15 places the sucked-up cells into the cell tray 2 on the other side, while the cell tray 2 transfer components transport the full cell tray 2 to the lateral movement component 16, thus continuously feeding the cells. To further improve the feeding speed, the suction cup component 15 can simultaneously suck up multiple sets of cells for stacking, for example, it can suck up six cells at the same time. Six cell trays are placed on one side of the cell tray 2 transfer component, and the suction cup component 15 can place six cells in a single movement.

[0045] After the sidewall passivation machine removes the battery cells from the process box, the empty process box, with its opening facing upwards, is conveyed from the sidewall passivation machine to the connecting assembly. The conveyor belt of the connecting assembly rotates 90° to convey the process box onto the conveyor belt of the process box flipping device. The lifting plate drives the fixed frame to rise until the fixed post of the process box is engaged in the slot. Then, the telescopic rod extends to close the slot. The cover removal assembly removes or opens the top cover of the process box. The fixed frame rotates to flip the process box 90°. The transport assembly places the battery cells horizontally into the process box. Then, the fixed frame flips the process box back to its initial position (i.e., opening upwards). The cover removal assembly puts the top cover back or closes it. Then, the fixed frame descends and retracts the telescopic rod, opening the slot. The process box descends under the action of the fixed frame until it is placed on the conveyor belts on both sides of the fixed frame. Then, the conveyor belt of the connecting assembly rotates 90° to send the process box into the sidewall passivation machine to complete another loading process.

[0046] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A process box flipping device for adjusting the opening orientation of a process box, characterized in that, The process box has fixed posts on two opposite side walls. The flipping device includes a fixed frame for supporting the process box. The fixed frame has slots on two opposite side walls for the fixed posts to be inserted into. The slots have telescopic rods that extend and retract relative to the slots to open or close them. When the slots are closed, the fixed posts are locked in the slots, thus fixing the process box relative to the fixed frame. The fixed frame is rotated by a rotating mechanism.

2. The process box flipping device according to claim 1, characterized in that, At least two fixing posts are provided on each side wall of the process box, and a slot corresponding to each fixing post is provided on the side wall of the fixing frame.

3. The process box flipping device according to claim 2, characterized in that, Two slots are provided on the side wall of each of the fixed frames, and a bidirectional cylinder is provided between the two slots. The bidirectional cylinder controls the two telescopic rods to extend and retract relative to the two slots respectively.

4. The process box flipping device according to claim 1, characterized in that, A top rod is provided below the fixed frame. When the process box is flipped over, the top rod rises to support the side wall of the process box.

5. The process box flipping device according to claim 1, characterized in that, It also includes a conveyor belt comprising two parallel belt bodies, and a fixed frame located on a lifting frame between the two belt bodies. The fixed frame and the lifting frame are rotatably connected by a rotating shaft. The rotating mechanism controls the fixed frame to rotate relative to the lifting frame around the rotating shaft. The lifting frame causes the fixed frame to move up and down relative to the conveyor belt, thereby transferring the process box between the conveyor belt and the fixed frame.

6. The process box flipping device according to claim 5, characterized in that, The process box is provided with support columns on its two other opposite side walls, so that when the fixed frame descends relative to the conveyor belt, the support columns can support the conveyor belt.

7. The process box flipping device according to claim 1, characterized in that, A lid-removing component is provided above the fixed frame, which is used to remove or place the lid of the process box.

8. A battery cell sidewall passivation feeding device, characterized in that, The device includes the process box flipping device as described in any one of claims 1 to 7, and further includes a sheet feeding device, the sheet feeding device including a sheet box and a conveying assembly for conveying the sheet between the sheet box and the process box, the conveying assembly taking the sheet out of the sheet box and placing the sheet horizontally into the process box on the fixed frame.

9. The battery cell sidewall passivation feeding device according to claim 8, characterized in that, The sheet feeding device further includes a conveying component for conveying sheets, sheet cassette transfer components located on both sides of the conveying component, and a suction cup component located above the conveying component and the sheet cassette transfer component. The suction cup component moves between the conveying component and the sheet cassette transfer component to convey the sheet from the conveying component to the sheet cassette of the sheet cassette transfer component. The end of the sheet cassette transfer component is adjacent to a transverse transfer component, which conveys the sheet cassette on the sheet cassette transfer component to the sheet placement component position for the handling component to grasp.

10. The battery cell sidewall passivation feeding device according to claim 8, characterized in that, It also includes a connecting component corresponding to the process box flipping device, which transfers the process box between the process box flipping device and the sidewall passivation machine.

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