A photovoltaic back contact cell rework tool

Abstract

The utility model discloses a photovoltaic back contact cell repair tool belongs to photovoltaic module technical field, including base, and the base is fixedly connected with slide rail, and the slide rail is slidably connected with a plurality of support mechanisms, the top of each support mechanism is fixedly connected with the lifting mechanism, and the movable end of the top of each lifting mechanism is fixedly connected with the bearing platform, and a plurality of bearing platforms are used for bearing battery string, and the top of bearing platform is equipped with adsorption hole, and the adsorption hole is connected with negative pressure adsorption mechanism, and the negative pressure adsorption mechanism sets up in the bearing platform, and a plurality of negative pressure adsorption mechanisms and a plurality of lifting mechanisms are controlled individually. The utility model discloses a slide rail on the base and the support mechanism of sliding connection can adjust the bearing platform spacing to adapt to different piece spacing battery string, and the lifting mechanism individually controls the lifting of corresponding bearing platform, avoids the scratch of good battery piece to wear the belt, and the adsorption hole cooperates with negative pressure adsorption mechanism and fixes the battery piece and prevents displacement, and the whole solves the problem that the existing tool battery piece is easy to scratch, string arc and poor adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic module technology, and in particular relates to a photovoltaic back contact battery repair tool. Background Technology

[0002] In the field of photovoltaic technology, back-contact solar cells, as a high-efficiency photovoltaic technology with both positive and negative electrodes located on the back of the cell, have the significant characteristic of having no solder strips on the front of the module. Their PN junction and metal contacts are all located on the back of the solar cell, and the soldering process is entirely completed on the back of the cell, effectively improving light absorption efficiency. However, in the manufacturing process of back-contact solar cells, rework is a crucial step in ensuring product quality, and current rework processes face numerous technical challenges.

[0003] In the prior art, Chinese Patent No. CN220138332U discloses a battery string repair device, providing a technical solution that can fix the battery string and ensure the integrity of the surface of the battery cells in the battery string. The battery string repair device includes: a repair platform, a vacuum adsorption component, and a light-transmitting component. Multiple battery cell repair areas, isolated from each other, are distributed on the repair platform, each area for placing one battery cell from the battery string. The vacuum adsorption component is connected to all the multiple battery cell repair areas and provides vacuum adsorption force to one or more of the battery cell repair areas to adsorb the battery cell located in the corresponding area. The light-transmitting component is disposed in the repair platform and provides a light source above the repair platform.

[0004] However, it still has obvious drawbacks: during the rework and cell replacement operation, good cells cannot bypass the welding strip and are prone to friction with the welding strip or tools during insertion, resulting in scratches on the front side; the lack of an effective cell positioning structure makes it difficult to align the cells, which can easily cause arcing in the cell string; at the same time, this solution cannot adapt to cell strings with different cell spacings, and the tools have poor versatility, making it difficult to meet diverse rework needs.

[0005] Therefore, in order to address the problems of easy scratching of cells, easy arcing of cell strings, and insufficient tool compatibility in the existing photovoltaic back contact cell repair technology, it is urgent to develop a new type of repair tool and operation method to improve the quality and efficiency of repair. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model proposes a photovoltaic back contact battery repair tool.

[0007] To achieve the above objectives, this utility model provides a photovoltaic back-contact battery repair tool, comprising: a base, a slide rail fixedly connected to the base, and multiple support mechanisms slidably connected to the slide rail; a lifting mechanism fixedly connected to the top of each support mechanism; a carrying platform fixedly connected to the movable end of the top of each lifting mechanism; the multiple carrying platforms for carrying battery strings; an adsorption hole opened on the top of each carrying platform; the adsorption hole communicating with a negative pressure adsorption mechanism; the negative pressure adsorption mechanism being disposed within the carrying platform; and the multiple negative pressure adsorption mechanisms and the multiple lifting mechanisms being individually controlled.

[0008] Optionally, each lifting mechanism is provided with a corresponding lifting switch, and the lifting switch is fixed to the side of the support mechanism corresponding to the lifting mechanism. Each lifting mechanism is individually controlled by its corresponding lifting switch.

[0009] Optionally, each negative pressure adsorption mechanism is equipped with an adsorption switch, and the adsorption switch is fixed to the support platform to which the negative pressure adsorption mechanism is connected. Each negative pressure adsorption mechanism is individually controlled by its corresponding adsorption switch.

[0010] Optionally, the lifting mechanism can be any one of screw lifting, hydraulic / pneumatic lifting, or electromagnetic drive lifting.

[0011] Optionally, the side of the bearing platform has upward-protruding blocks, and the blocks on multiple bearing platforms are located on the same vertical plane.

[0012] Optionally, multiple adsorption holes are evenly arranged on the support platform, and the multiple adsorption holes on the same support platform are uniformly provided with negative pressure by the negative pressure adsorption mechanism on the support platform.

[0013] Optionally, infrared safety light curtains are installed on both sides of the base.

[0014] Optionally, a propulsion mechanism is fixedly connected to the bearing platform opposite the stop, and a push plate is fixedly connected to the movable end of the propulsion mechanism. The push plate is pushed by the propulsion mechanism to move towards the stop, thereby realizing bidirectional blocking and clamping of the battery cell.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects:

[0016] The spacing of the carrying platform can be adjusted to accommodate battery strings with different cell spacings via the slide rails on the base and the sliding support mechanism. The lifting mechanism independently controls the lifting of the corresponding carrying platform, and the lowering during cell replacement avoids scratching the welding strips of good battery cells. The adsorption holes of the carrying platform, together with the negative pressure adsorption mechanism, fix the battery cells to prevent displacement, thus solving the problems of easy scratching, arcing, and poor compatibility of existing tools. Attached Figure Description

[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0018] Figure 1 This is a schematic diagram of the photovoltaic back contact battery repair tool of this utility model;

[0019] Figure 2 This is a schematic diagram of the lifting mechanism, support mechanism, and bearing platform in this utility model;

[0020] Figure 3 This is a side view of the structure of the lifting mechanism, support mechanism, and bearing platform in this utility model;

[0021] Figure 4 This is a top view of the load-bearing platform in this utility model;

[0022] Figure 5 This is a side view of the lifting mechanism, support mechanism, and bearing platform of Embodiment 2 of this utility model.

[0023] In the diagram: 1. Base; 2. Slide rail; 3. Support mechanism; 4. Lifting mechanism; 5. Bearing platform; 6. Battery string; 7. Adsorption hole; 8. Lifting switch; 9. Adsorption switch; 10. Stop; 11. Infrared safety light curtain; 12. Push plate; 13. Propulsion mechanism. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] Reference Figures 1 to 4As shown, this embodiment provides a photovoltaic back contact battery repair tool, including: a base 1, a slide rail 2 fixedly connected to the base 1, and multiple support mechanisms 3 slidably connected to the slide rail 2; a lifting mechanism 4 fixedly connected to the top of each support mechanism 3; a carrying platform 5 fixedly connected to the movable end of the top of each lifting mechanism 4, the multiple carrying platforms 5 being used to carry battery strings 6, and an adsorption hole 7 being opened on the top of the carrying platform 5, the adsorption hole 7 being connected to a negative pressure adsorption mechanism, the negative pressure adsorption mechanism being disposed within the carrying platform 5, and the multiple negative pressure adsorption mechanisms and the multiple lifting mechanisms 4 being individually controlled.

[0028] The spacing of the bearing platform 5 can be adjusted to accommodate battery strings 6 with different cell spacings via the slide rail 2 on the base 1 and the sliding support mechanism 3. The lifting mechanism 4 independently controls the lifting of the corresponding bearing platform 5, and the lowering during cell replacement avoids scratching the good battery cells through the welding strip. The adsorption holes 7 of the bearing platform 5, together with the negative pressure adsorption mechanism, fix the battery cells to prevent displacement, thus solving the problems of easy scratching, arcing and poor compatibility of existing tools for battery cells.

[0029] In some alternative implementations, each lifting mechanism 4 is provided with a corresponding lifting switch 8, which is fixed to the side of the support mechanism 3 corresponding to the lifting mechanism 4, and the lifting mechanism 4 is controlled individually by its corresponding lifting switch 8.

[0030] The lifting mechanism 4 corresponds one-to-one with the lifting switch 8, and the lifting switch 8 is fixed to the side of the support mechanism 3. It can realize independent control of the lifting of a single bearing platform 5. During rework, only the lifting switch 8 at the corresponding bad cell position needs to be operated to control the bearing platform 5 at that position to descend to pick up and put down the cell and rise to reset, avoiding the influence of other cell positions, reducing operational interference, and accurately controlling the movement of the target bearing platform 5, improving rework efficiency and operational convenience.

[0031] In some optional implementations, each negative pressure adsorption mechanism is equipped with an adsorption switch 9, which is fixedly connected to the corresponding support platform 5 of the negative pressure adsorption mechanism. The negative pressure adsorption mechanism is individually controlled by its corresponding adsorption switch 9.

[0032] The negative pressure adsorption mechanism corresponds one-to-one with the adsorption switch 9, and the adsorption switch 9 is fixedly connected to the support platform 5. The adsorption state of the corresponding support platform 5 can be controlled independently. During rework, only the adsorption switch 9 of the support platform 5 at the position of the defective cell needs to be operated to accurately fix or release the cell at that position, avoiding interference with the adsorption state of other cells, ensuring the stability of the cell position during the rework process, simplifying the operation process, and improving the flexibility and efficiency of the rework operation.

[0033] Specifically, the negative pressure adsorption mechanism can be connected to an external negative pressure source (such as a vacuum pump) through an air pipe, and the air flow can be controlled by the adsorption switch 9, thereby controlling the adsorption state of the adsorption pores.

[0034] In some alternative implementations, the lifting mechanism 4 can be any one of screw lifting, hydraulic / pneumatic lifting, or electromagnetic drive lifting.

[0035] The lifting mechanism 4 can adopt any one of the following: screw lifting, hydraulic / pneumatic lifting, and electromagnetic drive lifting. The appropriate lifting method can be flexibly selected according to the needs of the actual application scenario. Screw lifting has high precision and good stability, hydraulic / pneumatic lifting has sufficient power and smooth operation, and electromagnetic drive lifting has rapid response and convenient control. The multiple lifting methods available improve the applicability of the tool and can better meet the lifting needs of the bearing platform 5 in different rework operation environments.

[0036] In some alternative implementations, the side of the support platform 5 has an upwardly protruding stop 10, and the stops 10 on multiple support platforms 5 are located on the same vertical plane.

[0037] The support platform 5 has upward-protruding blocks 10 on its side, and multiple blocks 10 are located on the same vertical plane. When placing the battery string 6, the blocks 10 can be used to position and calibrate the battery string 6, so that each battery cell in the battery string 6 is neatly aligned along the blocks 10. This effectively avoids the problem of arcing in the battery string 6 caused by misalignment and twisting of the battery cells after rework, reduces the risk of poor string spacing in subsequent layout operations, and ensures the regularity of the battery string 6 structure.

[0038] In some alternative implementations, multiple adsorption holes 7 are evenly arranged on the support platform 5, and the multiple adsorption holes 7 on the same support platform 5 are uniformly provided with negative pressure by the negative pressure adsorption mechanism on the support platform 5.

[0039] Multiple adsorption holes 7 are evenly arranged on the same bearing platform 5 and are uniformly provided with negative pressure by the negative pressure adsorption mechanism of the platform. This can enhance the fixing effect of the battery cells through multi-point uniform adsorption, prevent the battery cells from shifting or warping due to uneven force during the rework process, and ensure the stability of the battery cell position. At the same time, the uniform negative pressure supply can be precisely controlled by a single adsorption switch 9, which simplifies the operation and improves the reliability of battery cell fixing. This ensures the stability of the battery cell posture during rework and reduces the risk of scratches and arcing.

[0040] In some alternative implementations, infrared safety light curtains 11 are installed on both sides of the base 1.

[0041] Infrared safety light curtains 11 are installed on both sides of the base 1, which can monitor the operating area on both sides of the base 1 in real time during rework. When an object or person enters the danger zone, the safety protection mechanism can be triggered in time, such as suspending the operation of the equipment, to avoid mechanical injury to personnel caused by the lifting mechanism 4, the adsorption mechanism and other components during operation, thereby improving the safety of the tool during use and ensuring the personal safety of the operators.

[0042] Work process:

[0043] Adjust the spacing of the bearing platforms 5: Based on the spacing of the battery string 6 to be repaired, slide each support mechanism 3 along the slide rail 2 on the base 1 to match the distance between adjacent bearing platforms 5 with the spacing of the battery string 6. After completion, fix the position of the support mechanism 3.

[0044] Place and initially position the battery string 6: Place the battery string 6 to be repaired on top of multiple support platforms 5, aligning the side of the battery string 6 with the protruding blocks 10 on the side of each support platform 5, and perform initial positioning and calibration of the battery string 6 through the blocks 10.

[0045] Adsorption and fixation of battery string 6: Turn on the adsorption switch 9 on each support platform 5, so that multiple adsorption holes 7 evenly distributed on the same support platform 5 generate adsorption force under the action of negative pressure adsorption mechanism, and fix each battery cell in the battery string 6 onto the corresponding support platform 5.

[0046] Remove the solder strip from the target cell: Determine the location of the cell that needs to be repaired, and use infrared or resistance heating to remove the solder strip from the cell.

[0047] Individual control of the target support platform 5 to descend: Operate the lifting switch 8 on the side of the support mechanism 3 below the corresponding target battery cell to control the lifting mechanism 4 at that position, such as the screw, hydraulic / pneumatic or electromagnetic drive, so that the support platform 5 can drive the damaged battery cell to the repair low position.

[0048] Replace the battery cell: Turn off the adsorption switch 9 of the target support platform 5 to release the adsorption of the damaged battery cell and remove the damaged battery cell; place the new battery cell into the support platform 5, align it, and then turn on the adsorption switch 9 to fix the new battery cell through the adsorption hole 7.

[0049] Control target bearing platform 5 to reset: Operate lifting switch 8 to make lifting mechanism 4 drive bearing platform 5 to rise to the repair high position level with other bearing platforms 5.

[0050] Welding and fixing the welding strip: Align the welding strip with the new battery cell and weld it in place using a heating method.

[0051] Remove the repaired battery string 6: Turn off the adsorption switches 9 of all bearing platforms 5, release the adsorption and remove the battery string 6 to complete this repair and enter the repair cycle of the next battery string.

[0052] Throughout the process, the infrared safety light curtains 11 on both sides of the base 1 monitor the operating area in real time to ensure operational safety.

[0053] Example 2

[0054] Reference Figure 5As shown, the only difference between the photovoltaic back contact battery repair tool in this embodiment and that in embodiment 1 is that a pushing mechanism 13 is fixedly connected to the bearing platform 5 opposite the block 10 in this embodiment. A push plate 12 is fixedly connected to the movable end of the pushing mechanism 13. The push plate 12 is pushed by the pushing mechanism 13 to move towards the block 10, thereby achieving bidirectional blocking and clamping of the battery cell.

[0055] On the support platform 5 opposite the stop 10, a push mechanism 13 and a push plate 12 are provided. The push plate 12 can move towards the stop 10 under the drive of the push mechanism 13, forming a bidirectional blocking and clamping of the battery cell. Compared with the positioning of a single stop 10, it can fix the battery cell more stably, prevent it from shifting during rework operations, further improve the alignment accuracy of the battery cell, reduce the risk of arcing, and adapt to the fixing needs of battery cells of different sizes, thus enhancing the versatility of the tool.

[0056] During operation, the battery cells can be further stabilized by the bidirectional clamping of the push plate 12 and the stop block 10 during positioning, thereby improving alignment accuracy.

[0057] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0058] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0059] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A photovoltaic back contact cell repair tool, characterized in that, include: A base (1) is fixedly connected to a slide rail (2), and multiple support mechanisms (3) are slidably connected to the slide rail (2); a lifting mechanism (4) is fixedly connected to the top of each support mechanism (3); a carrying platform (5) is fixedly connected to the movable end of the top of each lifting mechanism (4), and multiple carrying platforms (5) are used to carry battery strings (6). An adsorption hole (7) is opened on the top of the carrying platform (5), and the adsorption hole (7) is connected to a negative pressure adsorption mechanism. The negative pressure adsorption mechanism is set inside the carrying platform (5), and multiple negative pressure adsorption mechanisms and multiple lifting mechanisms (4) are controlled individually.

2. The photovoltaic back contact cell repair tool according to claim 1, characterized in that: Each lifting mechanism (4) is provided with a lifting switch (8) corresponding to it. The lifting switch (8) is fixed to the side of the support mechanism (3) corresponding to the lifting mechanism (4). The lifting mechanism (4) is controlled individually by its corresponding lifting switch (8).

3. The photovoltaic back contact cell repair tool according to claim 1, characterized in that: Each negative pressure adsorption mechanism is equipped with an adsorption switch (9). The adsorption switch (9) is fixed to the bearing platform (5) connected to the negative pressure adsorption mechanism. The negative pressure adsorption mechanism is individually controlled by its corresponding adsorption switch (9).

4. The photovoltaic back contact cell repair tool according to claim 1, characterized in that: The lifting mechanism (4) can be any one of screw lifting, hydraulic / pneumatic lifting, or electromagnetic drive lifting.

5. The photovoltaic back contact cell repair tool according to claim 1, characterized in that: The support platform (5) has a stop block (10) protruding upward on its side, and the stop blocks (10) on multiple support platforms (5) are located on the same vertical plane.

6. The photovoltaic back contact cell repair tool according to claim 1, characterized in that: The adsorption holes (7) are evenly arranged in a plurality of them on the support platform (5), and the multiple adsorption holes (7) on the same support platform (5) are provided with negative pressure by the negative pressure adsorption mechanism on the support platform (5).

7. The photovoltaic back contact cell repair tool according to claim 1, characterized in that: Infrared safety light curtains (11) are installed on both sides of the base (1).

8. The photovoltaic back contact cell repair tool according to claim 5, characterized in that: A propulsion mechanism (13) is fixedly connected to the bearing platform (5) opposite the stop (10). A push plate (12) is fixedly connected to the movable end of the propulsion mechanism (13). The push plate (12) is pushed by the propulsion mechanism (13) to move closer to the stop (10), thereby achieving bidirectional blocking and clamping of the battery cell.

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