Solar cell appearance detection mechanism

Abstract

The utility model relates to a solar cell appearance detection mechanism. The solar cell appearance detection mechanism comprises a feeding assembly, a receiving assembly and a detection assembly. The detection assembly is located between the feeding assembly and the receiving assembly and comprises a detection structure, a moving structure and a rotating structure, the detection structure comprises a detection carrying table and an image acquisition module, the detection carrying table is arranged on the rotating structure, the rotating structure is arranged on the moving structure, and the image acquisition module and the detection carrying table are correspondingly arranged. According to the technical scheme, the problem that the detection precision is low when the appearance of the solar cell is detected in the prior art is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of solar cell inspection, and in particular to a solar cell appearance inspection mechanism. Background Art

[0002] With the development of new energy technologies, the application of solar products is becoming increasingly widespread. Solar cells utilize the photoelectric effect to convert solar energy into and store electrical energy. Before leaving the factory, solar cells undergo various tests, particularly appearance inspections. These tests are designed to detect breakage, cracking, bending, and surface damage, as well as continuous bubbles and delamination along the edges. Unsatisfactory appearance of solar cells can affect subsequent installation and application. Currently, most solar cells rely on operators to visually inspect the exterior for obvious defects under ambient light. This not only wastes human resources but also leads to errors due to limited manpower. Manual inspections of subtle defects in solar cells can result in lengthy inspection times and missed defects, resulting in relatively low inspection efficiency.

[0003] Some existing appearance inspection devices (for example, the authorization announcement number is CN 217688603U, and the name is: A photovoltaic module appearance inspection device) include a workbench, a slide rail, an imaging device, a support frame, and an operating panel. The workbench includes support legs and a panel, the panel is fixedly mounted on the support legs, the slide rail is mounted on the panel, the slide rail includes a track and a track car, there are two tracks, the two tracks are parallel to each other, the track car is placed on the two tracks, the track car and the track are slidably connected, the photovoltaic module is placed on the panel, and the imaging device is set on the track car facing the panel, thereby realizing the appearance inspection of the photovoltaic module. However, because different photovoltaic modules are placed at different angles on the panel, it is difficult to completely compare the photos taken by the imaging device with the reference photos, which affects the inspection accuracy. Utility Model Content

[0004] The present application provides a solar cell appearance inspection mechanism to solve the problem of low inspection accuracy when inspecting the appearance of solar cells in the prior art.

[0005] The present application provides a solar cell appearance inspection mechanism comprising a feed assembly, a receiving assembly, and a detection assembly. The detection assembly is located between the feed assembly and the receiving assembly and comprises a detection structure, a movable structure, and a rotating structure. The detection structure comprises a detection platform and an image acquisition module. The detection platform is mounted on the rotating structure, which is mounted on the movable structure. The image acquisition module and the detection platform are positioned in correspondence with each other.

[0006] In some embodiments, the detection structure also includes a support platform having a mating groove. The detection structure also includes a rotating shaft and an installation bearing. The installation bearing is sleeved on the circumferential outer side of the rotating shaft. The installation bearing is located in the mating groove. The first end of the rotating shaft is rotatably arranged in the mating groove, and the second end of the rotating shaft is connected to the detection platform.

[0007] In some embodiments, the rotating structure includes a first drive motor, a first drive shaft and a first drive gear. The first end of the first drive motor is arranged on the support platform, the second end of the first drive motor is transmission-connected to the first end of the first drive shaft, the second end of the first drive shaft is connected to the first drive gear, the circumferential side surface of the detection platform has mating gear teeth, and the detection platform and the first drive gear are meshed.

[0008] In some embodiments, the moving structure includes a second drive motor, a drive screw, a nut seat and a bearing seat. The second drive motor and the first end of the drive screw are transmission-connected, the second end of the drive screw is passed through the bearing seat, the nut seat is sleeved on the circumferential outer side of the drive screw, and the nut seat is connected to the support platform.

[0009] In some embodiments, the feeding assembly includes a third drive motor, a conveyor belt, two groups of second drive shafts, two groups of drive rollers and two groups of support vertical plates. The two groups of support vertical plates are arranged opposite to each other, and the two groups of second drive shafts and two groups of drive rollers are arranged one by one and are both located between the two groups of support vertical plates. The third drive motor is arranged on the first group of support vertical plates. Both groups of support vertical plates have matching holes. The first end of the first group of second drive shafts passes through the matching holes on the first group of support vertical plates and is connected to the third drive motor in transmission. The second end of the second drive shaft is rotatably inserted into the second group of matching holes. The drive roller is sleeved on the circumferential outside of the second drive shaft and is fixedly connected to the second drive shaft. The conveyor belt is located on the circumferential outside of the two groups of drive rollers.

[0010] In some embodiments, the material receiving assembly includes a transporting robot arm, a suction pen, a connecting pipe and a vacuum generator. The transporting robot arm has a transporting state toward the detection platform, or a non-transporting state away from the detection platform. The suction pen is installed on the transporting robot arm, and the suction pen is connected to the vacuum generator through a connecting pipe.

[0011] In some embodiments, the image acquisition module includes a detection camera, a CCD image sensor and a light source, and the detection structure also includes a supporting stand and a supporting cross plate. The supporting stand is arranged on one side of the detection platform, the supporting cross plate and the supporting stand are connected, and the supporting cross plate and the supporting stand are arranged vertically. The detection camera and the light source are both installed on the supporting cross plate and arranged toward the detection platform, and the CCD image sensor and the detection camera are electrically connected.

[0012] In some embodiments, the detection platform is made of transparent material.

[0013] In some embodiments, the detection platform has a vacuum chamber inside, and the detection platform has a plurality of adsorption holes, which are connected to the vacuum chamber.

[0014] In some embodiments, the solar cell appearance inspection mechanism further includes a control component, which includes a PLC controller, a processor and a touch screen. The PLC controller and the touch screen are electrically connected to the processor, and the processor is electrically connected to the image acquisition module.

[0015] Applying the technical solution of the present application, a solar cell appearance detection mechanism includes: a feeding component, a receiving component and a detection component. The detection component is located between the feeding component and the receiving component. The feeding component is used to transport the solar cell to be detected, the detection component is used to detect the appearance of the solar cell, and the receiving component is used to transfer the solar cell after detection. The detection component includes a detection structure, a moving structure and a rotating structure. The detection structure includes a detection platform and an image acquisition module. The detection platform is used to place the solar cell to be detected. The detection platform is arranged on the rotating structure, and the rotating structure is arranged on the moving structure. The rotating structure can drive the detection platform to rotate, and the moving structure drives the rotating structure to move. Under the joint action of the moving structure and the rotating structure, the position of the solar cell to be detected can be adjusted more accurately, which is convenient for the image acquisition module to perform image acquisition and improve the detection accuracy. The technical solution of the present application effectively solves the problem of low detection accuracy when detecting the appearance of solar cells in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A schematic diagram of the structure of a solar cell appearance inspection mechanism according to an embodiment of the present application is shown;

[0019] Figure 2 A schematic structural diagram of a detection component in an embodiment of the present application is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. Feeding assembly; 11. Third drive motor; 12. Conveyor belt; 13. Second drive shaft; 14. Drive roller; 15. Support vertical plate; 20. Material receiving assembly; 21. Handling robot arm; 22. Suction pen; 30. Detection assembly; 31. Detection structure; 311. Detection carrier; 312. Image acquisition module; 313. Support platform; 314. Rotating shaft; 315. Mounting bearing; 316. Support vertical frame; 317. Support horizontal plate; 32. Moving structure; 321. Second drive motor; 322. Drive screw; 323. Nut seat; 324. Bearing seat; 33. Rotating structure; 331. First drive motor; 332. First drive shaft; 333. First drive gear. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0024] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0025] like Figure 1 and Figure 2As shown, an embodiment provides a solar cell appearance inspection mechanism, comprising: a feeding assembly 10, a receiving assembly 20, and a detection assembly 30. The detection assembly 30 is located between the feeding assembly 10 and the receiving assembly 20. The detection assembly 30 includes a detection structure 31, a moving structure 32, and a rotating structure 33. The detection structure 31 includes a detection platform 311 and an image acquisition module 312. The detection platform 311 is arranged on the rotating structure 33, and the rotating structure 33 is arranged on the moving structure 32. The image acquisition module 312 and the detection platform 311 are arranged correspondingly.

[0026] Applying the technical solution of this embodiment, a solar cell appearance inspection mechanism includes: a feeding assembly 10, a receiving assembly 20, and a detection assembly 30. The detection assembly 30 is located between the feeding assembly 10 and the receiving assembly 20. The feeding assembly 10 is used to transport solar cells to be inspected, the detection assembly 30 is used to inspect the appearance of solar cells, and the receiving assembly 20 is used to transfer solar cells that have been inspected. The detection assembly 30 includes a detection structure 31, a moving structure 32, and a rotating structure 33. The detection structure 31 includes a detection platform 311 and an image acquisition module 312. The detection platform 311 is used to place the solar cell to be inspected. The detection platform 311 is set on the rotating structure 33, and the rotating structure 33 is set on the moving structure 32. The rotating structure 33 can drive the detection platform 311 to rotate, and the moving structure 32 drives the rotating structure 33 to move. Under the joint action of the moving structure 32 and the rotating structure 33, the position of the solar cell to be inspected can be more accurately adjusted, facilitating image acquisition by the image acquisition module 312, thereby improving detection accuracy. The technical solution of this embodiment effectively solves the problem of low detection accuracy when inspecting the appearance of solar cells in the prior art.

[0027] like Figure 2 As shown, in some embodiments, the detection structure 31 also includes a support platform 313, the support platform 313 has a matching groove, the detection structure 31 also includes a rotating shaft 314 and a mounting bearing 315, the mounting bearing 315 is sleeved on the circumferential outer side of the rotating shaft 314, the inner ring of the mounting shaft can rotate with the rotation of the rotating shaft 314, the mounting bearing 315 is located in the matching groove, the outer ring of the mounting bearing 315 and the inner wall of the matching groove are abutted against each other, the first end of the rotating shaft 314 is rotatably set in the matching groove, the second end of the rotating shaft 314 is connected to the detection platform 311, and the rotating shaft 314 and the detection platform 311 rotate synchronously.

[0028] like Figure 2As shown, in some embodiments, the rotating structure 33 includes a first drive motor 331, a first drive shaft 332, and a first drive gear 333. The first end of the first drive motor 331 is disposed on the support platform 313, the second end of the first drive motor 331 is in transmission connection with the first end of the first drive shaft 332, the first drive motor 331 inputs power to the first drive shaft 332, the second end of the first drive shaft 332 is connected to the first drive gear 333, and the first drive shaft 332 drives the first drive gear 333 to rotate synchronously. The circumferential side surface of the detection platform 311 has mating gear teeth, the detection platform 311 and the first drive gear 333 are engaged, and the first drive gear 333 drives the detection platform 311 to rotate. As the detection platform 311 rotates, the angle of the solar cell placed on the detection platform 311 can be adjusted so that the solar cell is directly below the image acquisition module 312. The image captured by the image acquisition module 312 and the comparison image have the same angle, thereby improving the accuracy of the appearance inspection of the solar cell.

[0029] like Figure 2 As shown, in some embodiments, the movable structure 32 includes a second drive motor 321, a drive screw 322, a nut seat 323 and a bearing seat 324. The second drive motor 321 and the first end of the drive screw 322 are transmission-connected, and the second drive motor 321 inputs power to the drive screw 322. The second end of the drive screw 322 is passed through the bearing seat 324, and the nut seat 323 is sleeved on the circumferential outer side of the drive screw 322. As the drive screw 322 rotates, the nut seat 323 can move along the axial direction of the drive screw 322. The nut seat 323 is connected to the support platform 313, and the nut seat 323 drives the support platform 313 to move synchronously.

[0030] like Figure 1As shown, in some embodiments, the feeding assembly 10 includes a third driving motor 11, a conveyor belt 12, two groups of second driving shafts 13, two groups of driving rollers 14 and two groups of supporting uprights 15, the two groups of supporting uprights 15 are arranged opposite to each other, the two groups of second driving shafts 13 and the two groups of driving rollers 14 are arranged one by one and are located between the two groups of supporting uprights 15, the third driving motor 11 is arranged on the first group of supporting uprights 15, and the two groups of supporting uprights 15 have matching holes, the first ends of the first group of second driving shafts 13 pass through the matching holes on the first group of supporting uprights 15, and are connected to the third driving motor 11. The third drive motor 11 is connected in a transmission manner. The third drive motor 11 inputs power to the second drive shaft 13. The second end of the second drive shaft 13 is rotatably inserted into the second set of matching holes. The drive roller 14 is sleeved on the circumferential outside of the second drive shaft 13 and is fixedly connected to the second drive shaft 13. The rotation of the second drive shaft 13 drives the drive roller 14 to rotate synchronously. The conveyor belt 12 is located on the circumferential outside of the two sets of drive rollers 14. The conveyor belt 12 has first gear teeth, and the roller surface of the drive roller 14 has second gear teeth. The second gear teeth mesh with the first gear teeth to drive the conveyor belt 12 to move. The solar cells are placed on the conveyor belt 12.

[0031] It should be noted that the inspection platform 311 can be moved to the bottom of the conveyor belt 12. As the conveyor belt 12 is transported, the solar cell is transported to the inspection platform 311. The side of the solar cell facing the conveyor belt 12 is covered with a protective film, which can prevent the solar cell from being scratched when it falls onto the inspection platform 311.

[0032] like Figure 1 As shown, in some embodiments, the material receiving assembly 20 includes a handling robot arm 21, a suction pen 22, a connecting pipe, and a vacuum generator. The handling robot arm includes a base, a rotating support, a chassis rotating motor, a first swing servo motor, a main arm, a mounting support, a second swing servo motor, and a small arm. The base is disposed on the ground, the chassis rotating motor is disposed on the base, the chassis rotating motor is transmission-connected to the rotating support, the rotating support is rotatably disposed on the base, the first swing servo motor and the main arm are disposed on either side of the rotating support, the first swing servo motor and the main arm are transmission-connected, the mounting support is disposed on the main arm, the second swing servo motor and the small arm are both disposed on the mounting support, the second swing servo motor and the small arm are transmission-connected, and the suction pen is mounted on the small arm. The handling robot arm 21 can have a handling state toward the inspection platform 311 or a non-handling state away from the inspection platform 311. The suction pen 22 is mounted on the handling robot arm 21 and connected to the vacuum generator via a connecting pipe. In the handling state, the suction pen 22 picks up the inspected solar cells for transfer. In the non-transportation state, the suction pen 22 faces away from the detection platform 311 to avoid affecting the operation of the image acquisition module 312 .

[0033] like Figure 2As shown, in some embodiments, the image acquisition module 312 includes a detection camera, a CCD image sensor, and a light source. The detection structure 31 also includes a support frame 316 and a support cross plate 317. The support frame 316 is disposed on one side of the detection platform 311. The support cross plate 317 is connected to the support frame 316, and the support cross plate 317 and the support frame 316 are arranged perpendicular to each other. The detection camera and the light source are both mounted on the support cross plate 317 and arranged toward the detection platform 311. The detection platform 311 is driven by the moving structure 32 to move below the detection camera, so that the solar cell and the detection camera are opposite. The rotating structure 33 drives the detection platform 311 to rotate, so that the solar cell is at an optimal angle. The CCD image sensor is electrically connected to the detection camera and converts the image captured by the detection camera into a digital signal.

[0034] In some embodiments, the detection platform 311 is made of transparent material, such as glass or acrylic. The purpose of this setting is to make the appearance of the solar cell more obvious and the image captured by the detection camera clearer, thereby improving the accuracy of the detection.

[0035] In some embodiments, the detection platform 311 has a vacuum chamber inside, and the detection platform 311 has multiple adsorption holes. The adsorption holes are connected to the vacuum chamber, and the vacuum chamber is connected to the vacuum generator, and the solar cell is fixed on the detection platform 311 by negative pressure.

[0036] In some embodiments, the solar cell appearance inspection mechanism further includes a control component, which includes a PLC controller, a processor, and a touch screen display. The PLC controller and the touch screen display are electrically connected to the processor. A weighing sensor is provided on the inspection platform 311, and the weighing sensor is electrically connected to the PLC controller. The PLC controller is electrically connected to all motors and vacuum generators, and the processor is electrically connected to the image acquisition module 312.

[0037] The control assembly operates as follows: the conveyor belt 12 transports the solar cells to the inspection platform 311. The weighing sensor detects the weight change and transmits a signal to the PLC controller. The PLC controller controls the moving structure 32 to move the inspection platform 311. After the platform moves to the bottom of the image acquisition module 312, the PLC controller controls the rotating structure 33 to adjust the angle of the inspection platform 311. After the adjustment is completed, the image acquisition module 312 captures the image and transmits the captured image to the processor for processing. After the appearance inspection is completed, the PLC controller controls the material receiving assembly 20 to transfer the solar cells. The cells are numbered according to the inspection order and displayed on the touch screen to facilitate the operator to deal with solar cells that do not meet the appearance requirements.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0040] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A solar cell appearance inspection mechanism, characterized in that: include: Feeding assembly (10); a material receiving assembly (20); A detection component (30) is located between the feeding component (10) and the receiving component (20). The detection component (30) includes a detection structure (31), a moving structure (32) and a rotating structure (33). The detection structure (31) includes a detection platform (311) and an image acquisition module (312). The detection platform (311) is arranged on the rotating structure (33), and the rotating structure (33) is arranged on the moving structure (32). The image acquisition module (312) and the detection platform (311) are arranged correspondingly.

2. The solar cell appearance inspection mechanism according to claim 1, characterized in that: The detection structure (31) further includes a support platform (313), wherein the support platform (313) has a matching groove. The detection structure (31) further includes a rotating shaft (314) and a mounting bearing (315), wherein the mounting bearing (315) is sleeved on the circumferential outer side of the rotating shaft (314), and the mounting bearing (315) is located in the matching groove. The first end of the rotating shaft (314) is rotatably arranged in the matching groove, and the second end of the rotating shaft (314) is connected to the detection carrier (311).

3. The solar cell appearance inspection mechanism according to claim 2, characterized in that: The rotating structure (33) includes a first driving motor (331), a first driving shaft (332) and a first driving gear (333), wherein the first end of the first driving motor (331) is arranged on the supporting platform (313), the second end of the first driving motor (331) is transmission-connected to the first end of the first driving shaft (332), the second end of the first driving shaft (332) is connected to the first driving gear (333), the circumferential side surface of the detection platform (311) has matching gear teeth, and the detection platform (311) and the first driving gear (333) are meshed.

4. The solar cell appearance inspection mechanism according to claim 2, characterized in that: The movable structure (32) comprises a second driving motor (321), a driving screw (322), a nut seat (323) and a bearing seat (324); the second driving motor (321) is transmission-connected to the first end of the driving screw (322); the second end of the driving screw (322) is passed through the bearing seat (324); the nut seat (323) is sleeved on the circumferential outer side of the driving screw (322); and the nut seat (323) is connected to the support platform (313).

5. The solar cell appearance inspection mechanism according to claim 1, characterized in that: The feeding assembly (10) comprises a third driving motor (11), a conveyor belt (12), two groups of second driving shafts (13), two groups of driving rollers (14) and two groups of supporting uprights (15), wherein the two groups of supporting uprights (15) are arranged opposite to each other, the two groups of the second driving shafts (13) and the two groups of driving rollers (14) are arranged in a one-to-one correspondence and are both located between the two groups of supporting uprights (15), the third driving motor (11) is arranged on the first group of supporting uprights (15), and the two groups of supporting uprights (15) are arranged on the second group of supporting uprights (15). 5) both have matching holes, the first ends of the first group of the second drive shafts (13) pass through the matching holes on the first group of the support vertical plates (15) and are connected to the third drive motor (11) in a transmission manner, the second ends of the second drive shafts (13) are rotatably inserted into the matching holes of the second group, the drive rollers (14) are sleeved on the circumferential outer side of the second drive shafts (13) and are fixedly connected to the second drive shafts (13), and the conveyor belts (12) are located on the circumferential outer sides of the two groups of the drive rollers (14).

6. The solar cell appearance inspection mechanism according to claim 1, characterized in that: The material receiving assembly (20) comprises a transporting robot arm (21), a suction pen (22), a connecting pipe and a vacuum generator. The transporting robot arm (21) has a transporting state toward the detection platform (311) or a non-transporting state away from the detection platform (311). The suction pen (22) is installed on the transporting robot arm (21), and the suction pen (22) is connected to the vacuum generator through the connecting pipe.

7. The solar cell appearance inspection mechanism according to claim 1, characterized in that: The image acquisition module (312) includes a detection camera, a CCD image sensor and a light source. The detection structure (31) also includes a support stand (316) and a support cross plate (317). The support stand (316) is arranged on one side of the detection platform (311). The support cross plate (317) and the support stand (316) are connected, and the support cross plate (317) and the support stand (316) are arranged vertically. The detection camera and the light source are both installed on the support cross plate (317) and arranged toward the detection platform (311). The CCD image sensor and the detection camera are electrically connected.

8. The solar cell appearance inspection mechanism according to any one of claims 1 to 7, characterized in that: The detection platform (311) is made of transparent material.

9. The solar cell appearance inspection mechanism according to any one of claims 1 to 7, characterized in that: The detection platform (311) has a vacuum chamber inside, and the detection platform (311) has a plurality of adsorption holes, and the adsorption holes are connected to the vacuum chamber.

10. The solar cell appearance inspection mechanism according to any one of claims 1 to 7, characterized in that: The solar cell appearance detection mechanism further includes a control component, which includes a PLC controller, a processor and a touch screen display. The PLC controller and the touch screen display are both electrically connected to the processor, and the processor is electrically connected to the image acquisition module (312).

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