Battery piece correcting device

Abstract

The utility model relates to the field of solar cell preparation, particularly provides a cell correcting device, and aims to solve the problem that a cell can deflect. In order to achieve the purpose, the battery piece correcting device comprises a transmission assembly arranged on a frame body, the transmission assembly is provided with two conveying parts which are arranged along a first direction and are parallel to each other, and the moving directions of the two conveying parts are opposite; the protection plate shields the transmission assembly in the third direction, and a first gap extending in the first direction is formed between the protection plate and the transmission assembly; the connecting support comprises a connecting part and an extending part which are sequentially arranged in the second direction, the connecting part is arranged on the conveying part, and the extending part penetrates through the first gap and extends out of the protection plate; the two positive piece assemblies are arranged on the two extending parts of the two connecting supports correspondingly, and after the two conveying parts move, the two positive piece assemblies are driven to be close to or away from each other. According to the utility model, the battery piece between the two positive piece assemblies can be pushed to be positive, and fragments caused by deviation of the battery piece are avoided.

Description

Technical Field

[0001] This utility model relates to the field of solar cell manufacturing, specifically providing a positive sheeting device for solar cells. Background Technology

[0002] The PERC (Passivated Emitter and Rear Cell) coating process is a crucial step in solar cell manufacturing. It involves forming a thin film on the back of the cell to improve its photoelectric conversion efficiency and performance. Currently, the PERC coating process requires transporting the solar cells. During transport, the cells may deflect, and if their position is not corrected, they may become stuck and break. Furthermore, various issues during cell processing can cause breakage, which, if it enters certain equipment, can lead to further jamming.

[0003] Accordingly, a new technical solution is needed in this field to solve the above problems. Utility Model Content

[0004] This invention aims to solve the aforementioned technical problem, namely, the problem of solar cell deflection. To this end, this invention provides a solar cell straightening device, comprising: a frame; a transmission assembly mounted on the frame, the transmission assembly having two parallel conveying parts along a first direction, the two conveying parts moving in opposite directions; a protective plate positioned above the transmission assembly along a third direction, forming a first gap extending along the first direction between the plate and the transmission assembly; a connecting support including a connecting part and an extension part arranged sequentially along a second direction, the connecting part being mounted on the conveying parts, and the extension part extending through the first gap to the outside of the protective plate; and two straightening assemblies, two straightening assemblies respectively mounted on the two extension parts of the two connecting supports, the two conveying parts moving causing the two straightening assemblies to move closer or further apart, for straightening the solar cell passing between the two straightening assemblies.

[0005] In a specific embodiment of the above-mentioned positive cell device with battery cells, the transmission assembly includes: two transmission wheels, both of which are mounted on the frame and have their axial directions parallel to a third direction; and a transmission belt, which is wrapped around the outside of the two transmission wheels, with the portion of the transmission belt between the two transmission wheels forming two transmission sections.

[0006] In a specific embodiment of the above-mentioned positive film device with battery cells, the positive film assembly includes: a support portion disposed on the extension portion; and a positive film wheel disposed on the support portion. The positive film wheels on the two positive film assemblies are disposed opposite each other along a first direction and are used to push the battery cells into the correct position after contacting the edge of the battery cells.

[0007] In the specific embodiment of the above-mentioned positive cell device with battery cells, several positive cells wheels are arranged along the transmission direction of the battery cells, and the edges of the positive cells wheels are used to push the battery cells to be aligned.

[0008] In a specific embodiment of the above-mentioned positive cell device with battery cells, the positive cell device further includes: a baffle, and baffles are provided on both sides of the transmission belt along the second direction, wherein a second gap is formed between the baffle on one side and the protective plate, the second gap is connected to the first gap, and the extension passes through the first gap and the second gap in sequence and extends to the outside of the protective plate.

[0009] In the specific embodiment of the above-mentioned positive cell device with battery cells, the frame is shielded below the internal area of ​​the transmission belt in a third direction.

[0010] In a specific embodiment of the above-mentioned positive cell device with battery cells, the positive cell device further includes: a transmission housing, two transmission wheels respectively housed in two transmission housings, one side of the transmission housing having an opening, and a transmission belt connected to the transmission wheels through the opening.

[0011] In a specific embodiment of the above-mentioned positive cell device with battery cells, the positive cell device further includes: a driving device, which is connected to a transmission wheel and is used to drive the transmission wheel to rotate.

[0012] In a specific embodiment of the above-mentioned positive cell device with battery cells, the positive cell device further includes: a limit sensor, which is installed on the frame and is used to shut down the drive device after being triggered, so as to limit the position of the positive cell assembly.

[0013] In the specific embodiment of the above-mentioned positive film device with battery cells, three limit sensors are arranged along the first direction. The middle limit sensor is used to limit the position of the positive film assembly at the initial position; the limit sensors on both sides are used to limit the position of the positive film assembly at the maximum or minimum displacement, respectively.

[0014] With the above technical solution, this utility model uses a transmission wheel and transmission belt to drive the moving blocks closer or further apart, thereby driving the positive cell assemblies closer or further apart. When the battery cells are conveyed along the second direction, the two positive cell assemblies move closer to the battery cells along the first direction, pushing the battery cells into position. The protective plate in this utility model can completely cover the space above the transmission belt, preventing debris from falling into the transmission belt and causing malfunctions. Attached Figure Description

[0015] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the overall structure of the positive cell device in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the positive cell assembly after removing the protective plate, baffle and transmission housing;

[0018] Figure 3 This is a front view of the solar cell positive assembly after removing the protective plate, baffle, and transmission housing;

[0019] Figure 4 It is a cross-sectional view of the positive cell assembly of the solar cells from a certain perspective.

[0020] In the diagram: 1. Frame, 2. Drive wheel, 3. Drive belt, 4. Transmission part, 5. Moving block, 6. Positive film assembly, 7. Connecting support, 8. Positive film wheel, 9. Connecting part, 10. Extension part, 11. Support part, 12. Protective plate, 13. First gap, 14. Baffle, 15. Second gap, 16. Transmission housing, 17. Limit sensor. Detailed Implementation

[0021] 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. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0022] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "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 relevant device or component 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, ordinal numbers such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation" and "connection" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Furthermore, in order to more clearly demonstrate the core technical solution of this utility model, the description of the known structure of the driving device is omitted in the following description. However, this omission is only for the convenience of description and does not mean that the driving device can be without these structures.

[0025] like Figure 1-4As shown, this utility model proposes a positive cell device for solar cells, comprising: a frame 1; a transmission assembly disposed on the frame 1, the transmission assembly having two conveying parts 4 parallel to each other along a first direction, the two conveying parts 4 moving in opposite directions; a protective plate 12 blocking the transmission assembly above it along a third direction, and forming a first gap 13 extending along the first direction between the plate and the transmission assembly; a connecting support 7, comprising a connecting part 9 and an extension part 10 arranged sequentially along a second direction, the connecting part 9 being disposed on the conveying parts 4, and the extension part 10 extending through the first gap 13 to the outside of the protective plate 12; and positive cell assemblies 6, two positive cell assemblies 6 being respectively disposed on the two extension parts 10 of the two connecting supports 7, the two conveying parts 4 moving causing the two positive cell assemblies 6 to move closer or further apart, for pushing and correcting the solar cells passing between the two positive cell assemblies 6.

[0026] The first direction is the length direction of the positive film device, represented by the X direction in the figure; the second direction is the width direction of the positive film device, represented by the Y direction in the figure; and the third direction is the height direction of the positive film device, represented by the Z direction in the figure.

[0027] In this embodiment, to solve the problem of the battery cell deflection, a bracket 1, a transmission assembly, and a positive cell assembly 6 are provided. The two transmission parts 4 of the transmission assembly are parallel to each other and move in opposite directions. After the two transmission parts 4 move, they can drive the two positive cell assemblies 6 to move closer or further away from each other along the first direction. The battery cell passes between the two positive cell assemblies 6. The two positive cell assemblies 6 first move closer to each other along the first direction, gradually pushing the battery cell to the correct position. Then the two positive cell assemblies 6 move further away from each other along the first direction, releasing the pushed-to-the-correct battery cell. Figure 1 The solar cells are conveyed along the second direction, and the two positive cell assemblies 6 move closer to the solar cells along the first direction to straighten them and prevent breakage caused by solar cell misalignment.

[0028] If there is no obstruction above the transmission assembly, debris can easily fall into it, causing problems such as jamming, positional changes, abnormal shutdowns, and plate blockage. Blockage results in a large amount of debris, requiring frequent cleaning to maintain the plate-forming device; otherwise, its lifespan will be significantly reduced. In this embodiment, to address the problem of debris easily falling in, a protective plate 12 is installed above the transmission assembly along a third direction to prevent debris from falling into the transmission belt 3 from above.

[0029] To ensure that the protective plate 12 completely covers the space above the transmission assembly while still allowing the transmission assembly to move the positive film assembly 6 along the first direction, this embodiment also includes a protective plate 12 and a connecting support 7. A first gap 13 is formed between the protective plate 12 and the transmission belt 3. One end of the connecting support 7 is connected to the conveying part 4 via a connecting part 9, and the other end extends through the first gap 13 to the outside of the protective plate 12 and connects to the positive film assembly 6. Thus, the conveying part 4, connected to the support 7, can move the positive film assembly 6 along the first direction within the first gap 13. This embodiment effectively prevents fragments from falling into the transmission assembly, reducing the failure rate of the positive film device, increasing the maintenance cycle, and extending the service life of the positive film device.

[0030] In addition, while the extension 10 extends along the second direction, it can also extend to both sides along the first direction, thereby increasing the distance between the two extensions 10 to facilitate the alignment of battery cells of different sizes.

[0031] Furthermore, such as Figure 2 As shown, the transmission assembly includes: two transmission wheels 2, both mounted on the frame 1 with their axial directions parallel to a third direction; and a transmission belt 3, which wraps around the outside of the two transmission wheels 2, with the portion of the transmission belt 3 between the two transmission wheels 2 forming two parallel conveying sections 4. A protective plate can be positioned above the inner area of ​​the transmission belt 3 along a third direction to prevent fragments of the battery cells from falling into the transmission belt 3 and jamming the transmission wheels 2, etc.

[0032] To facilitate the connection between the connecting part 9 and the conveying part 4, a movable block 5 can be provided on the conveying part 4. The movable block 5 moves with the conveying part 4. The connecting part 9 is provided on the conveying part 4 via the movable block 5. There are two movable blocks 5, one on each of the two conveying parts 4. After the transmission belt 3 moves, it drives the two movable blocks 5 to move closer or further apart along the first direction. After the transmission wheel 2 rotates, it drives the transmission belt 3 to move. After the transmission belt 3 moves, the two parallel conveying parts 4 run in opposite directions, so that the conveying part 4 can drive the two movable blocks 5 to move closer or further apart along the first direction. A positive film assembly 6 is provided on the movable block 5 via the connecting support 7, which in turn drives the two positive film assemblies 6 to move closer or further apart.

[0033] In this embodiment, the distance between the two positive cell components 6 will change after the transmission wheel 2 rotates, so the distance between the two positive cell components 6 can be adjusted to suit different sizes of battery cells.

[0034] Furthermore, such as Figures 1-4As shown, the positive cell assembly 6 includes: a support portion 11 disposed on the extension portion 10; and positive cell wheels 8 disposed on the support portion 11. The positive cell wheels 8 on the two positive cell assemblies 6 are arranged opposite each other along a first direction and are used to push the solar cells into the correct position after contacting the edge of the solar cell. The support portion 11 extends upward along a third direction, and the top of the support portion 11 is higher than the top of the protective plate 12. The positive cell wheels 8 are disposed on the extension portion 10 through the support portion 11, so that the space formed between the bottom of the support portion 11 and the top of the protective plate 12 can be used to transfer the solar cells.

[0035] Furthermore, several positive rollers 8 are arranged along the transport direction of the solar cells, and the edges of the positive rollers 8 are used to push the solar cells to align. For example... Figure 1 As shown, the transmission direction of the solar cell is the second direction. Three positive film wheels 8 are arranged along the second direction. After two positive film components 6 approach each other along the first direction, the positive film wheels 8 on them gradually approach the solar cell. After the positive film wheels 8 contact the solar cell, they push the solar cell into the correct position.

[0036] It should be pointed out that, although Figure 1 Each connecting support 7 is provided with 3 positive film wheels 8, but this is not a limitation of this utility model. Without departing from the basic principle of this utility model, those skilled in the art can set any number of positive film wheels 8 on the connecting support 7 according to the length of the battery cell, as long as the positive film wheels 8 are set along the transmission direction of the battery cell. This does not deviate from the principle of this utility model, and therefore all fall within the protection scope of this utility model.

[0037] Furthermore, such as Figure 1 and Figure 4 As shown, the positive film device also includes baffles 14, with baffles 14 provided on both sides of the transmission belt 3 along the second direction. In this embodiment, the baffles 14 block the outside of the transmission belt 3 along the second direction to prevent debris from entering the transmission belt 3 along the second direction and causing jamming and debris. At the same time, in order to enable the two ends of the extension 10 to connect with the connecting part 9 and the external positive film wheel, a second gap 15 is formed between one side of the baffle 14 and the protective plate 12. The second gap 15 communicates with the first gap 13. The extension 10 passes through the first gap 13 and the second gap 15 in sequence and extends to the outside of the protective plate 12.

[0038] Furthermore, such as Figure 4 As shown, the frame 1 blocks the lower part of the inner area of ​​the transmission belt 3 along the third direction, the baffle 14 blocks the two sides of the transmission belt 3 along the second direction, and the frame 1 and the protective plate 12 block the two sides of the transmission belt 3 along the third direction. In summary, the frame 1, the protective plate 12 and the baffle 14 surround the transmission belt 3, so that the inner area of ​​the transmission belt 3 is connected to the outside only through the first gap 13 and the second gap 15. This can prevent debris or other foreign objects from entering the space inside the transmission belt 3 from multiple directions.

[0039] Furthermore, such as Figure 1 As shown, in this embodiment, to prevent debris or other foreign objects from falling into the transmission wheel 2 and affecting normal transmission, the positive plate device also includes a transmission housing 16. The two transmission wheels 2 are respectively housed within the two transmission housings 16. One side of each transmission housing 16 has an opening, through which the transmission belt 3 connects to the transmission wheel 2. The transmission housing 16 can block external debris or foreign objects, preventing them from affecting the normal transmission of the transmission wheel 2. The edge of the transmission housing 16 can be flush with the edge of the baffle 14.

[0040] Furthermore, the positive film device also includes a drive unit, which is connected to the transmission wheel 2 and is used to drive the transmission wheel 2 to rotate. The drive unit can be a motor, and its output end is connected to the transmission wheel 2.

[0041] Furthermore, such as Figure 1 and Figure 4 As shown, the positive cell assembly also includes a limit sensor 17. The limit sensor 17 is mounted on the frame 1, or it can be mounted on the baffle 14 or other locations. When triggered, the limit sensor 17 is used to shut down the drive device to limit the position of the positive cell assembly 6. In actual use, several positive cell assemblies may be arranged side by side along the first direction. If the distance between the positive cell assemblies 6 is too large, they may collide with other adjacent positive cell assemblies. If the distance between the positive cell assemblies 6 is too small, they may crush the cells. Therefore, the limit sensor 17 is needed to limit the position of the positive cell assembly 6.

[0042] The limit sensor 17 can be a photoelectric limit sensor or other types of limit sensors. In this embodiment, a photoelectric limit sensor is used as an example. The photoelectric limit sensor has a signal transmitting end and a signal receiving end. A signal blocking plate is provided on the extension 10. The signal blocking plate moves along the first direction with the extension 10. When the signal blocking plate slides between the signal transmitting end and the signal receiving end, it will block the signal receiving end, so that the signal cannot be received by the signal receiving end. When the signal receiving end does not receive the signal, it will turn off the drive device, so that the transmission wheel 2 will no longer rotate, thereby limiting the position of the positive film assembly to that position.

[0043] Furthermore, such as Figure 1 As shown, three limit sensors 17 are arranged along the first direction. When the film assembly 6 moves to the initial position, the middle limit sensor 17 is triggered. The middle limit sensor 17 is used to restrict the position of the film assembly 6 at the initial position, thereby calibrating the initial position of the film assembly 6 and ensuring the accuracy of subsequent movements. When it is necessary to calibrate the position of the film assembly 6, the middle limit sensor 17 is turned on; when it is not necessary to calibrate the position of the film assembly 6, the middle limit sensor 17 can be turned off to avoid affecting the normal movement of the film assembly 6.

[0044] The limit sensor 17 near the drive wheel 2 is used to limit the position of the positive cell assembly 6 to the maximum displacement, so as to prevent the distance between the positive cell assemblies 6 from being too large, thereby preventing them from colliding with adjacent positive cell devices; the limit sensor 17 away from the drive wheel 2 is used to limit the position of the positive cell assembly 6 to the minimum displacement, so as to prevent the distance between the positive cell assemblies 6 from being too small, thereby preventing the cells from being crushed.

[0045] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments in the claims of this application can be used in any combination.

[0046] 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 positive film device for solar cells, characterized in that, include: Frame (1); A transmission assembly is provided on the frame (1), the transmission assembly having two transmission parts (4) that are parallel to each other along a first direction and that move in opposite directions; A protective plate (12) that shields the transmission assembly above it in a third direction and forms a first gap (13) extending in a first direction with the transmission assembly; The connecting support (7) includes a connecting part (9) and an extension part (10) arranged sequentially along the second direction. The connecting part (9) is disposed on the conveying part (4), and the extension part (10) extends through the first gap (13) to the outside of the protective plate (12). Positive cell assembly (6), two positive cell assemblies (6) are respectively disposed on the two extensions (10) of the two connecting supports (7). After the two conveying parts (4) move, they drive the two positive cell assemblies (6) to move closer or further away from each other, for pushing and straightening the battery cell passing between the two positive cell assemblies (6).

2. The solar cell positive-sinking device according to claim 1, characterized in that, The transmission assembly includes: The two drive wheels (2) are mounted on the frame (1) and their axial directions are parallel to the third direction. A transmission belt (3) is wrapped around the outside of the two transmission wheels (2), and the portion of the transmission belt (3) located between the two transmission wheels (2) forms two transmission sections (4).

3. The solar cell positive-sinking apparatus according to claim 1, characterized in that, The positive component (6) includes: A support portion (11) is provided on the extension portion (10); Positive film wheel (8) is disposed on the support part (11). The positive film wheels (8) on the two positive film assemblies (6) are disposed opposite to each other in a first direction and are used to push the battery cell to the correct position after contacting the edge of the battery cell.

4. The solar cell positive-sinking apparatus according to claim 3, characterized in that, The positive plate wheel (8) is provided in a plurality of positions along the transmission direction of the battery cell, and the edge of the positive plate wheel (8) is used to push the battery cell to be aligned.

5. The solar cell positive-sinking apparatus according to claim 4, characterized in that, The positive film device also includes: The baffle (14) is provided on both sides of the transmission belt (3) along the second direction. A second gap (15) is formed between the baffle (14) on one side and the protective plate (12). The second gap (15) communicates with the first gap (13). The extension (10) passes through the first gap (13) and the second gap (15) in sequence and extends to the outside of the protective plate (12).

6. The solar cell positive-sinking apparatus according to claim 5, characterized in that, The frame (1) is shielded in a third direction below the area inside the transmission belt (3).

7. The solar cell positive-sinking apparatus according to claim 1, characterized in that, The positive film device also includes: The transmission housing (16) houses two transmission wheels (2) respectively. One side of each transmission housing (16) has an opening, and the transmission belt (3) is connected to the transmission wheel (2) through the opening.

8. The solar cell positive-sinking apparatus according to claim 1, characterized in that, The positive film device also includes: A driving device is connected to the transmission wheel (2) and is used to drive the transmission wheel (2) to rotate.

9. The solar cell positive-sinking apparatus according to claim 8, characterized in that, The positive film device also includes: A limit sensor (17) is provided on the frame (1). When the limit sensor (17) is triggered, it is used to shut down the drive device to limit the position of the positive film assembly (6).

10. The solar cell positive-sinking apparatus according to claim 9, characterized in that, Three limit sensors (17) are arranged along the first direction, and the middle limit sensor (17) is used to limit the position of the positive film assembly (6) at the initial position. The limit sensors (17) on both sides are used to limit the position of the positive plate assembly (6) to the maximum or minimum displacement.

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