Gantry type IV test equipment for photovoltaic module

Abstract

The utility model discloses a gantry type IV test device for a photovoltaic module. The device comprises a first conveying device, a second conveying device, an IV testing module, a portal frame and a first conveying device, wherein the first conveying device and the second conveying device are used for conveying a photovoltaic module; the IV testing module is arranged between the first conveying device and the second conveying device; the portal frame stretches across the first conveying device and the second conveying device; a carrying and testing mechanism for carrying the photovoltaic module is arranged among the IV testing module and the second conveying device, the carrying and testing mechanism comprises a plurality of suction cup assemblies for adsorbing the photovoltaic module and a plurality of testing modules for carrying out IV testing on the photovoltaic module, and when the carrying and testing mechanism grabs the photovoltaic module and is located above the IV testing module, the IV testing module is used for carrying out IV testing on the photovoltaic module; and the IV test module completes the IV test of the photovoltaic module when the IV test module irradiates the bottom surface of the photovoltaic module from bottom to top. According to the utility model, the problem that a light source is shielded during IV testing can be solved, so that the IV testing precision is improved.

Description

[Technical Field]

[0001] This utility model belongs to the field of photovoltaic module manufacturing technology, and in particular relates to a gantry-type IV testing device for photovoltaic modules. [Background Technology]

[0002] During photovoltaic (PV) module testing, the modules need to be illuminated. To ensure the reliability and accuracy of the test results, the light source must shine directly onto the PV module without any obstruction. Since PV modules are generally tested on a conveyor line, if the tester illuminates from below, the conveyor line will block the light from reaching the bottom edge of the module. Therefore, in the prior art, a downward-illuminating PV module testing device is described in Chinese patent application No. 2024201714224. The conveyor device includes two parallel and equal-height conveyor modules for transporting the PV modules, and push modules located at both ends of the conveyor modules to drive the two conveyor modules closer or further apart. A pallet mechanism is located above the conveyor device to lift the PV modules on the conveyor device. When the PV module is in place, the pallet mechanism lifts the PV module, and the push modules push the two conveyor modules away from each other. The pallet mechanism supports the PV module, and the test device performs IV testing on the PV module. When using the downward-illuminating method, the conveyor line does not block the light from reaching the PV module. However, this solution has the following two problems:

[0003] (1) In order to avoid the conveying module blocking the light source, the conveying device is equipped with a pushing module to push the conveying module, which makes the structure of the conveying device more complicated;

[0004] (2) When the support plate mechanism supports the photovoltaic module, it only involves several horizontal support plates extending into the inner side of the photovoltaic module frame to support the photovoltaic module. During the lifting process, the photovoltaic module may shift, which may lead to poor contact between the probe of the test device and the junction box of the photovoltaic module, thus affecting the test yield.

[0005] Therefore, it is necessary to provide a gantry-type IV testing device for photovoltaic modules to solve the above-mentioned technical problems. [Utility Model Content]

[0006] The main purpose of this invention is to provide a gantry-type IV testing device for photovoltaic modules, which can solve the problem of light source obstruction during IV testing, thereby improving the accuracy of IV testing.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a gantry-type IV testing device for photovoltaic modules, comprising a first conveying device and a second conveying device for conveying photovoltaic modules, an IV testing module disposed between the first conveying device and the second conveying device, a gantry spanning above the first conveying device and the second conveying device, and a transport and testing mechanism disposed on the gantry and transporting photovoltaic modules between the first conveying device, the IV testing module, and the second conveying device. The transport and testing mechanism includes a plurality of suction cup components for adsorbing photovoltaic modules and a plurality of testing modules for performing IV testing on photovoltaic modules. When the transport and testing mechanism grips the photovoltaic module and positions it above the IV testing module, the IV testing module completes the IV testing of the photovoltaic module when it shines light from bottom to top onto the bottom surface of the photovoltaic module.

[0008] Furthermore, the handling and testing mechanism also includes an X-axis drive module mounted on the gantry, a first support plate driven by the X-axis drive module to move along the X direction, a Z-axis drive module mounted on the first support plate, and a handling frame driven by the Z-axis drive module to move up and down. Several suction cup assemblies and several testing modules are mounted at the bottom of the handling frame.

[0009] Furthermore, the suction cup assembly includes a mounting component fixed to the transport frame, an air nozzle disposed on the mounting component, and a suction cup disposed at the bottom of the air nozzle.

[0010] Furthermore, the test module includes a mounting bracket set on the transport frame and several probes set on the mounting bracket. When the suction cup adheres to the surface of the photovoltaic module, the probes simultaneously extend into the junction box of the photovoltaic module and make contact with the pins of the junction box to conduct electricity.

[0011] Furthermore, the transport frame is equipped with several anti-drop modules that hook onto the inner side of the photovoltaic module frame to prevent the photovoltaic module from falling, and the several anti-drop modules are arranged on the opposite sides of the photovoltaic module.

[0012] Furthermore, the anti-fall module includes a first cylinder mounted on the transport frame, a second support plate driven by the first cylinder to move along the X direction, a second cylinder mounted on the second support plate, and a hook driven by the second cylinder to move up and down. The second support plate is provided with a detection sensor for sensing the position of the photovoltaic module frame.

[0013] Furthermore, the hook includes a mounting part installed at the output shaft end of the second cylinder and a hooking part that hooks the inner side of the photovoltaic module frame. The hooking part includes a horizontal surface that hooks the lower inner surface of the photovoltaic module frame and a vertical surface that is connected to the mounting part and is vertical. Rubber pads are provided on the horizontal surface and the vertical surface.

[0014] Furthermore, the transport rack is equipped with a sensor to detect the arrival of the photovoltaic modules.

[0015] Furthermore, the first conveying device and the second conveying device have the same conveying direction.

[0016] Furthermore, the first conveying device is equipped with a blocking component to block the photovoltaic module at the front end of the conveying process and a straightening component to straighten the front and rear opposite sides of the photovoltaic module.

[0017] Compared with the prior art, the advantages of this utility model of a gantry-type IV testing device for photovoltaic modules are as follows:

[0018] (1) The transport and testing mechanism is set on the gantry. The X-axis drive module set on the gantry enables the suction cup assembly to transport the photovoltaic module on the first conveying device to the IV test module. Then, the tested photovoltaic module is transported to the second conveying device. When the transport and testing mechanism grabs the photovoltaic module and is located above the IV test module, the IV test module shines light from bottom to top onto the bottom surface of the photovoltaic module. Since the transport and testing mechanism grabs the photovoltaic module and is located in the space above the IV test module, there is no structure below the photovoltaic module that blocks the light source. This can improve the test accuracy of the IV test. Therefore, this solution can solve the problem of the light source being blocked during the IV test, thereby improving the accuracy of the IV test.

[0019] (2) The handling test mechanism is equipped with several anti-drop modules that hook onto the inner side of the photovoltaic module frame to prevent the photovoltaic module from falling. The anti-drop modules are set on the two opposite sides of the photovoltaic module. When the suction cup assembly adsorbs and handles the photovoltaic module, the anti-drop modules can hook onto the inner side of the photovoltaic module frame. The suction cup adsorption can prevent the photovoltaic module from shifting. The hooks on the photovoltaic module frame can also prevent the photovoltaic module from falling, thus ensuring the stability of the photovoltaic module during handling. Therefore, the combined effect of the suction cup assembly and the anti-drop modules can both prevent the photovoltaic module from shifting and prevent the photovoltaic module from falling. [Attached Image Description]

[0020] Figure 1 This is a three-dimensional structural diagram of the photovoltaic module gantry IV testing equipment according to an embodiment of the present invention;

[0021] Figure 2This is a three-dimensional structural diagram of the first conveying device according to an embodiment of the present utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the handling and testing mechanism according to an embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram of the handling and testing mechanism according to an embodiment of the present invention;

[0024] Figure 5 This is a three-dimensional structural diagram of the handling and testing mechanism according to an embodiment of the present utility model;

[0025] Figure 6 This is a three-dimensional structural diagram of the anti-fall module according to an embodiment of the present invention;

[0026] Figure 7 This is a three-dimensional structural diagram of the test module in an embodiment of this utility model;

[0027] The numbers in the image represent:

[0028] 100-Gantry IV testing equipment for photovoltaic modules;

[0029] 1-First conveying device, 11-Blocking assembly, 111-Blocking cylinder, 112-Blocking wheel, 12-Correcting assembly, 121-Correcting cylinder, 122-Correcting wheel;

[0030] 2-Second conveying device; 3-IV test module; 4-Gantry frame;

[0031] 5-Transportation testing mechanism, 51-Positioning sensor, 52-Suction cup assembly, 521-Mounting component, 522-Air nozzle, 523-Suction cup, 53-Anti-drop module, 531-First cylinder, 532-Second support plate, 533-Second cylinder, 534-Hook, 5341-Mounting part, 5342-Hooking part, 53421-Horizontal plane, 53422-Vertical plane, 5343-Rubber pad, 535-Detection sensor, 54-Test module, 541-Mounting bracket, 542-Probe, 55-X-axis drive module, 551-First servo motor, 552-Belt, 56-First support plate, 57-Z-axis drive module, 571-Second servo motor, 572-Gear, 573-Rack, 58-Transportation frame, 581-Column, 582-Grip frame;

[0032] 6-Lifting module; 7-Through-beam grating.

Detailed Implementation Methods

[0033] Please refer to Figures 1-7This embodiment is a gantry-type IV testing device 100 for photovoltaic modules. The gantry-type IV testing device 100 for photovoltaic modules includes a first conveying device 1 and a second conveying device 2 for conveying photovoltaic modules, an IV testing module 3 disposed between the first conveying device 1 and the second conveying device 2, a gantry frame 4 spanning above the first conveying device 1 and the second conveying device 2, and a transport and testing mechanism 5 disposed on the gantry frame 4 for transporting photovoltaic modules between the first conveying device 1, the IV testing module 3 and the second conveying device 2. The transport and testing mechanism 5 includes a plurality of suction cup components 52 for adsorbing photovoltaic modules and a plurality of testing modules 54 for performing IV testing on photovoltaic modules. When the transport and testing mechanism 5 grasps the photovoltaic module and places it above the IV testing module 3, the IV testing module 3 shines light from bottom to top onto the bottom surface of the photovoltaic module, and the testing module 54 completes the IV testing of the photovoltaic module.

[0034] The handling and testing mechanism 5 also includes an X-axis drive module 55 mounted on the gantry 4, a first support plate 56 driven by the X-axis drive module 55 to move along the X direction, a Z-axis drive module 57 mounted on the first support plate 56, and a handling frame 58 driven by the Z-axis drive module 57 to move up and down. Several suction cup assemblies 52 and several test modules 54 are mounted at the bottom of the handling frame 58.

[0035] Several suction cup assemblies 52 are arranged at the bottom of the transport frame 58. The specific arrangement is not limited here. The suction cup assembly 52 includes a mounting part 521 fixed on the transport frame 58, an air nozzle 522 set on the mounting part 521, and a suction cup 523 set at the bottom of the air nozzle 522. The air nozzle 522 and the suction cup 523 are provided with gas channels that are interconnected and allow gas to pass through.

[0036] The test module 54 includes a mounting bracket 541 mounted on a transport frame 58 and several probes 542 mounted on the mounting bracket 541. When the suction cup 523 adheres to the surface of the photovoltaic module, the probes 542 simultaneously extend into the junction box of the photovoltaic module and make contact with the pins of the junction box to achieve electrical continuity. Several test modules 54 are provided, enabling the testing of photovoltaic modules with junction boxes in different positions, thus improving the versatility of the equipment.

[0037] The X-axis drive module 55 includes a first servo motor 551 mounted on the gantry 4 and a belt 552 driven by the first servo motor. The belt 552 extends along the X direction, and a first support plate 56 is mounted on the belt 552 by a belt clip.

[0038] The Z-axis drive module 57 includes a second servo motor 571, a gear 572 driven by the second servo motor 571 to rotate, and a rack 573 mounted on the transport frame 58 and extending along the Z direction. Through the cooperation of the gear and the rack, the transport frame 58 can move along the Z direction.

[0039] The transport frame 58 includes a vertically extending column 581 and a gripper frame 582 set at the bottom of the column 581. The gripper frame 582 includes several profiles spaced horizontally and several profiles spaced vertically. The several profiles spaced horizontally and several profiles spaced vertically are assembled to form a square gripper frame 582.

[0040] The transport frame 58 is equipped with several anti-drop modules 53 to hook onto the inner side of the photovoltaic module frame and prevent the photovoltaic module from falling. In this embodiment, there are four anti-drop modules 53, which are respectively arranged on two opposite sides of the photovoltaic module, with two modules on each side, together supporting the inner side of the photovoltaic module frame. In other embodiments, multiple anti-drop modules 53 can be set according to the size of the photovoltaic module. The specific position of the anti-drop modules 53 can be set according to the actual situation and is not limited here. The anti-drop module 53 includes a first cylinder 531 set on the transport frame 58, a second support plate 532 driven by the first cylinder 531 to move in the X direction, a second cylinder 533 set on the second support plate 532, and a hook 534 driven by the second cylinder 533 to move up and down. A detection sensor 535 for sensing the position of the photovoltaic module frame is set on the second support plate 532.

[0041] The hook 534 includes a mounting part 5341 installed at the output shaft end of the second cylinder 533 and a hooking part 5342 that hooks the inner side of the photovoltaic module frame. The hooking part 5342 is L-shaped and includes a horizontal surface 53421 that hooks the lower inner surface of the photovoltaic module frame and a vertical surface 53422 that is connected to the mounting part 5341 and is vertical. Since both the horizontal surface 53421 and the vertical surface 53422 will contact the photovoltaic module frame when the hooking part 5342 hooks the photovoltaic module, in order to prevent the hook 534 from scratching the photovoltaic module frame, rubber pads 5343 are provided on the horizontal surface 53421 and the vertical surface 53422. The rubber pads 5343 are made of soft material and have elastic contact with the inner side of the photovoltaic module frame. This ensures that the hooking part 5342 is in complete contact with the frame and will not shake when hooking, thus ensuring stability during transportation. It also prevents the hooking part 5342 from scratching the frame.

[0042] To improve the equipment's versatility and adapt to photovoltaic modules of different sizes, the anti-drop module 53 is movable. This movable anti-drop module 53 is mounted on the transport frame 58 via a slider rail. Specifically, the first cylinder 531 is mounted on the transport frame 58 via the slider rail and secured with screws. When the position of the anti-drop module 53 needs adjustment, the screws are loosened; after adjustment, the screws are tightened again. The movable anti-drop module 53, mounted via a slider rail, is automatically adjusted using a servo motor drive, allowing for one-button switching in the control system when changing photovoltaic module types.

[0043] The transport frame 58 is equipped with a position sensor 51 for sensing the photovoltaic module. When the transport test mechanism 5 grabs the photovoltaic module on the first conveying device 1, the transport frame 58 descends until the position sensor 51 can sense the surface of the photovoltaic module. The position sensor 51 gives a signal to start the suction cup assembly 52 and the lifting assembly 53 to work. The suction cup assembly 52 begins to adhere to the surface of the photovoltaic module, and the anti-drop module 53 begins to support the inner side of the photovoltaic module frame.

[0044] The IV test module 3 is existing technology and will not be described in detail here. When the transport test mechanism 5 picks up the photovoltaic module and places it above the IV test module 3, the IV test module 3 illuminates the bottom surface of the photovoltaic module from bottom to top. Since the transport test mechanism 5 is in the space above the IV test module 3 when picking up the photovoltaic module, there is no structure below the photovoltaic module that blocks the light source, which can improve the test accuracy of IV testing. Therefore, this solution can solve the problem of light source being blocked during IV testing and improve the accuracy of IV testing.

[0045] The first conveyor device 1 and the second conveyor device 2 have the same structure and both use a motor-driven belt conveyor to transport the photovoltaic modules. In this embodiment, both the first conveyor device 1 and the second conveyor device 2 are equipped with four sets of parallel belt conveyors to ensure the stability of the transport. After the first conveyor device 1 transports the photovoltaic modules to the designated position, the transport and testing mechanism 5 picks up the photovoltaic modules and places them above the IV testing module 3 for IV testing. After the test is completed, the transport and testing mechanism 5 picks up the photovoltaic modules and places them on the second conveyor device 2, transporting the tested photovoltaic modules to the next workstation.

[0046] To reduce the vertical movement of the handling and testing mechanism 5, a lifting module 6 can be installed at the bottom of the first conveying device 1 and the second conveying device 2. When the lifting module 6 lifts the first conveying device 1 and the second conveying device 2, the handling and testing mechanism 5 descends synchronously. When the handling and testing mechanism 5 picks up or puts down the photovoltaic modules, the movement stroke will be shortened and the cycle time will be faster, which can improve the efficiency of the work.

[0047] In this embodiment, the first conveying device 1 and the second conveying device 2 have the same conveying direction, i.e., they convey in the same direction. In other embodiments, the first conveying device 1 and the second conveying device 2 have conveying directions perpendicular to each other, which can change the conveying direction of the long side and the short side of the photovoltaic module.

[0048] The first conveying device 1 is equipped with a blocking component 11 to block the photovoltaic modules at the front end of the conveyor and a straightening component 12 to straighten the front and rear opposite sides of the photovoltaic modules. The blocking component 11 includes a blocking cylinder 111 and a blocking wheel 112 driven by the blocking cylinder 111 to move up and down. The straightening component 12 includes a straightening cylinder 121 and a straightening wheel 122 driven by the straightening cylinder 121 to move back and forth. To improve the versatility of the equipment and adapt to photovoltaic modules of different sizes, the straightening component 12 is movable. The movable straightening component 12 can be set by a slider rail and locked with screws. When the position of the straightening component 12 needs to be adjusted, the screws are loosened, and after the position of the straightening component 12 is adjusted, the screws are tightened again. The movable straightening component 12 can be set by a slider rail and automatically adjusted in conjunction with a servo motor drive, so that when changing the photovoltaic module type, one-button switching can be performed in the control system.

[0049] The gantry 4 is equipped with photoelectric gratings 7 on both opposite sides, which can prevent personnel from misoperating during the test and prevent the test equipment from injuring people.

[0050] When using the photovoltaic module gantry IV testing equipment 100 provided in this solution, as the photovoltaic module enters the first conveying device 1, the blocking cylinder 111 drives the blocking wheel 112 to extend and block the photovoltaic module from continuing to be conveyed. The straightening cylinder 121 extends to cause the straightening wheel 122 to straighten the front and rear sides of the photovoltaic module. The X-axis drive module 55 drives the first support plate 56 to move above the photovoltaic module. The Z-axis drive module 57 drives the transport frame 58 to descend. The transport frame 58 descends until the position sensor 51 can sense the surface of the photovoltaic module. The position sensor 51 gives a signal to start the suction cup assembly 52, the lifting assembly 53 and the testing module 54 to work. The vacuum pump (not shown in the figure) draws a vacuum so that the suction cup 523 adsorbs the surface of the photovoltaic module. The suction cup 523 adsorbs the photovoltaic module. When the surface of the component is being tested, probe 542 simultaneously extends into the junction box and makes contact with the pins of the junction box to conduct electricity. At the same time, first cylinder 531 drives second support plate 532 to extend into the lower part of the inner side of the frame. Second cylinder 533 retracts, causing hook 534 to hook the inner side of the frame. Z-axis drive module 57 drives transport frame 58 to rise. X-axis drive module 55 drives first support plate 56 to move above IV test module 3. IV test module 3 shines light from bottom to top onto the bottom surface of photovoltaic module. Test module 54 completes IV test. After the test is completed, X-axis drive module 55 drives first support plate 56 to move above second conveyor device 2. Z-axis drive module 57 drives transport frame 58 to descend, placing photovoltaic module on second conveyor device 2 for entry into the next processing station.

[0051] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A gantry-type IV testing device for photovoltaic modules, characterized in that: It includes a first conveying device and a second conveying device for conveying photovoltaic modules, an IV test module disposed between the first conveying device and the second conveying device, a gantry spanning above the first conveying device and the second conveying device, and a transport and testing mechanism disposed on the gantry and transporting photovoltaic modules between the first conveying device, the IV test module and the second conveying device. The transport and testing mechanism includes a plurality of suction cup components for adsorbing photovoltaic modules and a plurality of test modules for performing IV tests on photovoltaic modules. When the transport and testing mechanism grasps the photovoltaic module and places it above the IV test module, the IV test module completes the IV test on the photovoltaic module when the IV test module shines light from bottom to top onto the bottom surface of the photovoltaic module.

2. The photovoltaic module gantry IV testing equipment as described in claim 1, characterized in that: The transport testing mechanism further includes an X-axis drive module mounted on the gantry, a first support plate driven by the X-axis drive module to move along the X direction, a Z-axis drive module mounted on the first support plate, and a transport frame driven by the Z-axis drive module to move up and down. Several suction cup assemblies and several test modules are mounted at the bottom of the transport frame.

3. The photovoltaic module gantry IV testing equipment as described in claim 2, characterized in that: The suction cup assembly includes a mounting component fixed to the transport frame, an air nozzle disposed on the mounting component, and a suction cup disposed at the bottom of the air nozzle.

4. The photovoltaic module gantry IV testing equipment as described in claim 3, characterized in that: The test module includes a mounting bracket set on the transport frame and several probes set on the mounting bracket. When the suction cup adheres to the surface of the photovoltaic module, the probes simultaneously extend into the junction box of the photovoltaic module and make contact with the pins of the junction box to conduct electricity.

5. The photovoltaic module gantry IV testing equipment as described in claim 2, characterized in that: The transport frame is equipped with several anti-drop modules that hook onto the inner side of the photovoltaic module frame to prevent the photovoltaic module from falling. The several anti-drop modules are arranged on the opposite sides of the photovoltaic module.

6. The photovoltaic module gantry IV testing equipment as described in claim 5, characterized in that: The anti-fall module includes a first cylinder mounted on the transport frame, a second support plate driven by the first cylinder to move along the X direction, a second cylinder mounted on the second support plate, and a hook driven by the second cylinder to move up and down. The second support plate is provided with a detection sensor that senses the position of the photovoltaic module frame.

7. The photovoltaic module gantry IV testing equipment as described in claim 6, characterized in that: The hook includes a mounting part installed at the output shaft end of the second cylinder and a hooking part that hooks the inner side of the photovoltaic module frame. The hooking part includes a horizontal surface that hooks the lower inner surface of the photovoltaic module frame and a vertical surface that is connected to the mounting part and is vertical. Rubber pads are provided on the horizontal surface and the vertical surface.

8. The photovoltaic module gantry IV testing equipment as described in claim 2, characterized in that: The transport rack is equipped with sensors that detect the arrival of photovoltaic modules.

9. The photovoltaic module gantry IV testing equipment as described in claim 1, characterized in that: The first conveying device and the second conveying device have the same conveying direction.

10. A gantry-type IV testing device for photovoltaic modules as described in claim 1, characterized in that: The first conveying device is equipped with a blocking component to block the photovoltaic module at the front end of the conveying process and a straightening component to straighten the front and rear opposite sides of the photovoltaic module.

Images