Edge covering mechanism for photovoltaic battery piece

Abstract

The utility model discloses an edge covering mechanism for a photovoltaic battery piece, which comprises a sucking disc for fixing the battery piece and a workbench, and further comprises an alignment system for photographing and aligning the battery piece placed on the sucking disc and outputting an alignment result; the precise platform comprises an overturning motor, a rotating motor and a Z-axis driving structure and is used for controlling overturning, rotating and feeding of the battery piece according to the alignment result; through cooperation of the alignment system and the precision platform, accurate positioning and control of battery pieces can be achieved, it is guaranteed that the glue dipping amount of each edge and corner is consistent, the edge covering precision and quality are improved, the device adapts to battery pieces of different sizes and shapes, only parameters of the alignment system and the precision platform need to be adjusted, a glue dipping box and a UV curing module do not need to be replaced, and the production efficiency is improved. And the universality and the flexibility of the equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the edge covering process of photovoltaic cell piece, especially in kind for photovoltaic cell piece's edge covering mechanism,

[0002] Can realize high accuracy, high efficiency, low cost's edge covering effect, solve the deficiency of prior art scheme. BACKGROUND

[0003] Photovoltaic cell piece is the core element of photovoltaic power generation system, and its quality directly influences the performance and life of photovoltaic module. In order to improve the durability and protectivity of photovoltaic cell piece, usually need to carry out the edge covering treatment to the edge of cell piece to prevent the edge cracking, falling off, oxidation and other problems. The method of edge covering treatment has multiple, such as point adhesive type, roller type etc.

[0004] The current industry's edge covering demand precision is high, and the point adhesive type edge covering technology comes from semiconductor technology, can satisfy the precision of edge covering, but photovoltaic cell piece is different from wafer, exists four edges and four corners, adopts the point adhesive type edge covering, will lead to the edge and the junction of corner, cannot completely edge covering, leads to the edge covering to be bad, and the cost and maintenance cost of point adhesive machine are relatively high, cannot satisfy the demand of photovoltaic product;The control requirement of roller type edge covering to roller is extremely high, and the thickness of photovoltaic cell piece is almost about 0.1mm, very easy to roll the product and scratch, lead to cell piece damage.

[0005] Therefore, the current edge covering method all has certain defect, cannot satisfy the high precision, high efficiency, low cost demand of photovoltaic cell piece edge covering. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of edge covering mechanism for photovoltaic cell piece to solve the problems raised in the above background art.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A kind of edge covering mechanism for photovoltaic cell piece, including chuck for fixing cell piece, workbench, further include: alignment system, for the cell piece placed on chuck is photographed alignment, and output alignment result;

[0009] Precise platform, including turnover motor, rotary motor and Z-axis drive structure, for according to the turnover, rotation and feed of cell piece controlled by alignment result.

[0010] As a further scheme of the utility model: the Z axis drive structure includes the first mounting bracket fixedly installed at the top of the workbench, the drive motor vertically installed at the outer wall of the first mounting bracket, and the ball screw connected with the drive end of the drive motor, the outer wall of the first mounting bracket is provided with a mounting plate, the mounting plate is a U-shaped structure, including a vertically arranged back plate and two side plates fixed at both ends of the back plate respectively, the back plate is slidably connected with the outer wall of the first mounting bracket, one side of the back plate close to the first mounting bracket is provided with a nut support, the nut support is sleeved on the outer wall of the ball screw and moves up and down along the Z axis, the turnover motor is transversely installed at the outer wall of the side plate, the turnover plate is rotatably connected between the inner walls of the two side plates, the turnover plate is connected with the drive end of the turnover motor, the rotary motor is installed at the top of the turnover plate, and the suction disc is installed at the drive end of the rotary motor and adsorbs the battery piece.

[0011] As a further scheme of the utility model: the alignment system includes at least one set of second mounting bracket, camera and image processing unit, the second mounting bracket is fixedly installed at the top of the workbench, the camera and image processing unit are installed at the outer wall of the precision platform, the image processing unit is used for calculating the position, angle and displacement of the battery piece according to the battery piece image shot by the camera, and outputting the alignment result.

[0012] As a further scheme of the utility model: it further includes the impregnation box for impregnating the battery piece after turning over, which is arranged at the top of the workbench, and the UV curing module for curing the battery piece after impregnation, which is arranged at the top of the impregnation box.

[0013] As a further scheme of the utility model: the turnover motor is used for turning over the battery piece from the horizontal direction to the vertical direction, so that the edge of the battery piece is parallel to the liquid level of the impregnation box.

[0014] As a further scheme of the utility model: the liquid level sensor and the circulating pump are arranged in the impregnation box, which are used for maintaining the liquid level height of the glue solution.

[0015] As a further scheme of the utility model: the UV curing module includes an ultraviolet lamp and a sensor, the sensor is used for detecting the position of the battery piece, and when the battery piece rises to a certain height, the ultraviolet lamp is triggered to cure the battery piece.

[0016] Compared with the prior art, the utility model has the advantages that: 1. through the cooperation of the alignment system and the precision platform, the precise positioning and control of the battery piece can be realized, the impregnation amount of each edge and corner is ensured to be consistent, and the precision and quality of the edge wrapping are improved.

[0017] 2. The liquid level sensor and circulating pump of the dipping box can maintain the stable liquid level of the glue solution, avoid waste or shortage of the glue solution, and reduce the cost and maintenance difficulty;

[0018] 3. The ultraviolet lamp and sensor of the UV curing module can perform ultraviolet curing on the dipped battery piece, form a hard protective layer on the edge and corner of the battery piece, and enhance the durability and protection of the battery piece;

[0019] 4. The soaking type edge covering mechanism can adapt to battery pieces of different sizes and shapes, and only needs to adjust the parameters of the alignment system and the precision platform, without replacing the dipping box and the UV curing module, thereby improving the versatility and flexibility of the equipment.

[0020] 5. The soaking type edge covering mechanism can realize continuous edge covering operation, does not need frequent feeding and discharging, improves the speed and efficiency of edge covering, and is suitable for mass production of photovoltaic battery pieces. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of an edge covering mechanism for a photovoltaic battery piece.

[0022] Figure 2 It is a structural schematic view of a precision platform in an edge covering mechanism for a photovoltaic battery piece.

[0023] Figure 3 It is a working flowchart of a dipping box in an edge covering mechanism for a photovoltaic battery piece.

[0024] Figure 4 It is a working flowchart of a UV curing module in an edge covering mechanism for a photovoltaic battery piece.

[0025] In the figure: 1, suction cup; 2, alignment system; 21, camera; 22, image processing unit; 23, second mounting bracket; 3, precision platform; 31, overturning motor; 32, rotating motor; 33, Z-axis driving structure; 331, first mounting bracket; 332, driving motor; 333, ball screw; 34, mounting plate; 341, back plate; 342, side plate; 35, overturning plate; 4, dipping box; 41, liquid level sensor; 42, circulating pump; 5, UV curing module; 51, ultraviolet lamp; 52, sensor; 6, battery piece; 7, workbench. DETAILED DESCRIPTION EMBODIMENT

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0027] Please refer to Figures 1-2 The embodiment of the present application provides a kind of for the edge covering mechanism of photovoltaic cell piece, including workbench 7, suction cup 1, cell piece 6, alignment system 2, precision platform 3, impregnation box 4 and UV curing module 5, suction cup 1 is used to fix cell piece 6, alignment system 2 is used to photograph alignment to cell piece 6 placed on suction cup 1, and export alignment result, precision platform 3 includes overturning motor 31, rotating motor 32 and Z-axis drive structure 33, for according to the overturning, rotation and feed of cell piece 6 controlled by alignment result.

[0028] Alignment system 2 includes at least a second mounting bracket 23, camera 21 and image processing unit 22, camera 21 is used to photograph the image of cell piece 6, image processing unit 22 is used to calculate the position, angle and displacement of cell piece 6 according to the image of cell piece 6 photographed by camera 21, and export alignment result.The working principle of alignment system 2 is: when cell piece 6 is placed on suction cup 1, camera 21 photographs cell piece 6, and the image of cell piece 6 is transmitted to image processing unit 22, image processing unit 22 identifies the position, angle and displacement of cell piece 6 according to the edge and angle features of cell piece 6, and sends alignment result to precision platform 3, so that precision platform 3 adjusts cell piece 6 accordingly, can be used by setting multiple alignment systems 2, increase the alignment accuracy of cell piece 6.

[0029] It also includes impregnation box 4 for impregnating cell piece 6 after overturning, which is arranged on the top of workbench 7, and UV curing module 5 for curing cell piece 6 after impregnation, which is arranged on the top of impregnation box 4.

[0030] As Figure 2As shown, the working principle of the precision platform 3 is as follows: after the battery piece 6 is aligned, the turnover motor 31 turns the battery piece 6 from the horizontal direction to the vertical direction, then the rotating motor 32 adjusts the angle of the battery piece 6 according to the alignment result, so that the first edge and corner of the battery piece 6 are perpendicular to the liquid surface of the impregnation box 4, then the Z-axis driving structure 33 controls the descent of the battery piece 6 according to the alignment result, so that the first edge and corner of the battery piece 6 are immersed in the glue solution of the impregnation box 4, then the Z-axis driving structure 33 controls the ascent of the battery piece 6, so that the battery piece 6 rises below the UV curing module 5 for curing, then the rotating motor 32 rotates the battery piece 6 by 45°, and the same edge wrapping process is performed on the next edge and corner of the battery piece 6, until all the edges and corners are wrapped.

[0031] The specific working principle will be described in detail in combination with the specific structure as follows:

[0032] The Z-axis driving structure 33 includes a first mounting frame 331 fixedly installed on the top of the workbench 7, a driving motor 332 vertically installed on the outer wall of the first mounting frame 331, and a ball screw 333 connected with the driving end of the driving motor 332. The outer wall of the first mounting frame 331 is provided with a mounting plate 34, which is a U-shaped structure including a vertically arranged back plate 341 and two side plates 342 fixedly arranged at both ends of the back plate 341. The back plate 341 is in sliding connection with the outer wall of the first mounting frame 331. A nut seat is arranged on the side of the back plate 341 close to the first mounting frame 331, and the nut seat is sleeved on the outer wall of the ball screw 333 and moves up and down along the Z-axis. The turnover motor 31 is transversely installed on the outer wall of the side plate 342. A turnover plate 35 is rotatably connected between the inner walls of the two side plates 342. The turnover plate 35 is connected with the driving end of the turnover motor 31. The rotating motor 32 is installed on the top of the turnover plate 35. The suction cup 1 is installed on the driving end of the rotating motor 32 and adsorbs the battery piece 06.

[0033] The battery piece 6 is placed on the top of the suction cup 1 and fixed by the suction force of the suction cup 1. At least one camera 21 is used to take a picture of the horizontally placed battery piece 6. The image of the battery piece 6 is transmitted to the image processing unit 22. The image processing unit 22 identifies the position, angle and displacement of the battery piece 6 according to the characteristics of the edges and corners of the battery piece 6, and sends the alignment result to the precision platform 3, so that the precision platform 3 adjusts the battery piece 6 accordingly.

[0034] Specifically, after alignment, the turnover motor 31 is started, the driving end of the turnover motor 31 drives the turnover plate 35 to turn over, the battery piece 6 is turned over from the horizontal direction to the vertical direction, and is located directly above the impregnation box 4, then the rotating motor 32 drives the suction cup 1 and the battery piece 6 to deflect according to the alignment result, the angle of the battery piece 6 is corrected, the first edge and the corner of the battery piece 6 are perpendicular to the liquid level of the impregnation box 4; then the Z-axis driving structure 33 starts the driving motor 332 according to the alignment result, the ball screw 333 is driven to rotate by the driving motor 332, since the back plate 341 is in sliding connection with the first mounting bracket 331, the nut support is sleeved on the outer wall of the ball screw 333, when the ball screw 333 rotates, the nut support moves downward, and then drives the mounting plate 34 and the battery piece 6 to descend synchronously, so that the first edge and the corner of the battery piece 6 are immersed in the glue solution in the glue box 4, then the Z-axis driving structure 33 controls the rising of the battery piece 6, so that the battery piece 6 rises below the UV curing module 5 for curing, then the rotating motor 32 rotates the battery piece 6 by 45°, and the next edge and corner of the battery piece 6 are subjected to the same edge covering process, until all the edges and corners are covered. Embodiment

[0035] Please refer to Figures 2-4 The impregnation box 4 is provided with a liquid level sensor 41 and a circulating pump 42, the liquid level sensor 41 is used for detecting the liquid level height of the glue solution, the circulating pump 42 is used for pumping the glue solution from the storage tank and conveying it into the impregnation box 4, and at the same time, the excess glue solution in the impregnation box 4 is returned to the storage tank, so as to maintain the stability of the liquid level height of the glue solution. The working principle of the impregnation box 4 is as follows: when the battery piece 6 needs to be edge covered, the circulating pump 42 is started, the glue solution is pumped from the storage tank and conveyed into the impregnation box 4, and at the same time, the excess glue solution in the impregnation box 4 is returned to the storage tank, forming a closed circulation system, the liquid level sensor 41 monitors the liquid level height of the glue solution in real time, when the liquid level height reaches the set value, the circulating pump 42 stops working, and the liquid level height of the glue solution is maintained stable, when the liquid level height is lower or higher than the set value, the circulating pump 42 is restarted, and the liquid level height of the glue solution is adjusted, so as to avoid waste or deficiency of the glue solution.

[0036] As Figure 4As shown, the UV curing module 5 includes an ultraviolet lamp 51 for ultraviolet curing of the battery piece 6 after impregnation, so that the glue forms a hard protective layer on the edge and corner of the battery piece 6, and a sensor 52 for detecting the position of the battery piece 6, which triggers the ultraviolet lamp 51 to cure the battery piece 6 when the battery piece 6 is raised to a certain height. The working principle of the UV curing module 5 is: after the battery piece 6 is impregnated, the Z-axis driving structure 33 controls the rising of the battery piece 6, so that the battery piece 6 is raised below the UV curing module 5, the sensor 52 detects the position of the battery piece 6, and triggers the ultraviolet lamp 51 to cure the battery piece 6. The ultraviolet emitted by the ultraviolet lamp 51 can cause the photoinitiator in the glue to undergo a polymerization reaction, so that the glue forms a hard protective layer on the edge and corner of the battery piece 6, thereby enhancing the durability and protection of the battery piece 6.

[0037] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A kind of edge covering mechanism for photovoltaic cell piece, including chuck for fixed cell piece, workbench, it is characterized in that, Also include: A positioning system for photographing and positioning the battery piece placed on the suction cup, and outputting the positioning result; A precision platform including a turnover motor, a rotary motor and a Z-axis driving structure, for controlling the turnover, rotation and feeding of the battery piece according to the positioning result.

2. An edging mechanism for a photovoltaic cell as claimed in claim 1, wherein, The Z-axis driving structure includes a first mounting frame fixedly installed on the top of the workbench, a driving motor vertically installed on the outer wall of the first mounting frame, and a ball screw connected with the driving end of the driving motor. The outer wall of the first mounting frame is provided with a mounting plate, which is a U-shaped structure including a vertically arranged back plate and two side plates fixedly arranged at both ends of the back plate. The back plate is slidably connected with the outer wall of the first mounting frame. One side of the back plate close to the first mounting frame is provided with a nut support which is sleeved on the outer wall of the ball screw and moves up and down along the Z-axis. The turnover motor is transversely installed on the outer wall of the side plate. A turnover plate is rotatably connected between the inner walls of the two side plates. The turnover plate is connected with the driving end of the turnover motor. The rotary motor is installed on the top of the turnover plate. The suction cup is installed on the driving end of the rotary motor and adsorbs the battery piece.

3. The edging mechanism for photovoltaic cells of claim 1, wherein, The positioning system includes at least one set of second mounting frame, camera and image processing unit. The second mounting frame is fixedly installed on the top of the workbench. The camera and image processing unit are installed on the outer wall of the precision platform. The image processing unit is used to calculate the position, angle and displacement of the battery piece according to the battery piece image taken by the camera, and output the positioning result.

4. The edging mechanism for photovoltaic cells of claim 1, wherein, It also includes a dipping box arranged on the top of the workbench for dipping the turned-over battery piece, and a UV curing module arranged on the top of the dipping box for curing the dipped battery piece by ultraviolet rays.

5. An edging mechanism for a photovoltaic cell as claimed in claim 4, wherein, The turnover motor is used to turn the battery piece from horizontal direction to vertical direction, so that the edge of the battery piece is parallel to the liquid level of the dipping box.

6. An edging mechanism for a photovoltaic cell as claimed in claim 4, wherein, The dipping box is provided with a liquid level sensor and a circulating pump for maintaining the liquid level of the glue solution.

7. An edging mechanism for a photovoltaic cell as claimed in claim 4, wherein, The UV curing module includes an ultraviolet lamp and a sensor. The sensor is used to detect the position of the battery piece. When the battery piece rises to a certain height, the ultraviolet lamp is triggered to cure the battery piece.

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