An EL detection device suitable for multi-specification photovoltaic modules

Abstract

The utility model discloses a kind of EL detection equipment suitable for multi-specification photovoltaic module, it includes rack and the conveying mechanism, lifting mechanism, EL detection camera and electrode test mechanism being set on the rack;The conveying mechanism is used to convey different size photovoltaic module;The electrode test mechanism is located above conveying mechanism, and the electrode test mechanism is used to energize photovoltaic module on conveying mechanism;The EL detection camera is located below conveying mechanism, and the EL detection camera is used to carry out EL detection to photovoltaic module after energization;The lifting mechanism is located below conveying mechanism, and the lifting mechanism is used to adjust the distance between conveying mechanism and EL detection camera.The utility model provides a kind of EL detection equipment suitable for multi-specification photovoltaic module, can satisfy the EL test demand of different specification photovoltaic module, and strong versatility.

Description

Technical Field

[0001] This utility model relates to an EL testing device suitable for photovoltaic modules of various specifications, belonging to the field of photovoltaic module testing technology. Background Technology

[0002] Electroluminescence (EL) testing is a non-destructive testing technique used to assess internal defects in photovoltaic (PV) modules. By applying a voltage to the PV module, internal defects emit a faint light when current flows through them. The intensity and distribution characteristics of this light can reveal various problems within the module, such as microcracks, welding defects, and other potential faults. If these defects are not detected in time, they may lead to a decline in PV module performance, reduced power generation capacity, and even affect the safety of the entire PV system.

[0003] However, photovoltaic (PV) modules come in various specifications to meet different application requirements, and these specifications also vary in size. Existing EL (Elastic Optical Detection) devices for PV modules typically only inspect one type of module, resulting in poor versatility. Furthermore, the imaging from the EL inspection camera is not clear enough, leading to low accuracy in the inspection. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an EL testing device suitable for photovoltaic modules of various specifications, which can meet the EL testing requirements of photovoltaic modules of different specifications and has strong versatility.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: An EL testing device suitable for photovoltaic modules of various specifications includes a frame and a conveying mechanism, a lifting mechanism, an EL testing camera and an electrode testing mechanism mounted on the frame; The conveying mechanism is used to transport photovoltaic modules of different sizes; The electrode testing mechanism is located above the conveying mechanism and is used to energize the photovoltaic modules on the conveying mechanism. The EL inspection camera is located below the conveying mechanism and is used to perform EL inspection on the photovoltaic modules after they are powered on. The lifting mechanism is located below the conveying mechanism and is used to adjust the distance between the conveying mechanism and the EL detection camera.

[0006] Furthermore, the conveying mechanism includes a conveying support frame, a power component, a transmission main shaft, a main shaft bearing seat, and single-sided conveying components. The conveying support frame is slidably connected to the frame. The lifting mechanism drives the conveying support frame to move up and down on the frame. The power component is fixed on the conveying support frame and is used to drive the transmission main shaft to rotate. Both sets of single-sided conveying components are slidably connected to the conveying support frame. The main shaft bearing seat is fixed on the conveying support frame. The transmission main shaft is rotatably connected to the main shaft bearing seat. Both sets of single-sided conveying components are movably connected to the transmission main shaft, and the transmission main shaft is used to drive the two sets of single-sided conveying components to operate.

[0007] Furthermore, the power assembly includes a conveyor motor, a first belt, a first driving pulley, and a first driven pulley. The conveyor motor is fixed on the conveyor support frame, the first driving pulley is fixed on the motor shaft of the conveyor motor, the first driven pulley is fixed on the transmission main shaft, and a first belt connects the first driving pulley and the first driven pulley.

[0008] Furthermore, the single-sided conveying assembly includes a conveying profile, an active end slider connecting plate, an active end bearing seat, a second active pulley, a second belt, a second driven pulley, a passive end mounting plate, and a passive end slider connecting plate. One end of the conveying profile is connected to the active end slider connecting plate, the active end slider connecting plate is slidably connected to the conveying support frame, the active end bearing seat is connected to one end of the conveying profile, and both the active end bearing seat and the second active pulley are slidably connected to the transmission main shaft. The transmission main shaft drives the second active pulley to rotate, the second driven pulley is connected to the other end of the conveying profile through the passive end mounting plate, the passive end mounting plate is connected to the passive end slider connecting plate, the passive end slider connecting plate is slidably connected to the conveying support frame, and a second belt connects the second active pulley and the second driven pulley.

[0009] Furthermore, the single-sided conveying assembly also includes a aligning wheel, and a plurality of the aligning wheels are disposed on the conveying profile.

[0010] Furthermore, the lifting mechanism includes a lifting cylinder, an upper mounting plate, and a lower mounting plate. The lifting cylinder is located below the conveying support frame. The top of the lifting cylinder is connected to the frame via the upper mounting plate, and the bottom of the lifting cylinder is connected to the frame via the lower mounting plate. The piston rod of the lifting cylinder is connected to the bottom of the conveying support frame.

[0011] Furthermore, the electrode testing mechanism includes a test profile, a test slide rail, a test slider, a test beam, a lifting plate, an electrode cylinder, an electrode cylinder mounting plate, an electrode adapter plate, and an electrode assembly. The test profile is fixed on the frame and located above the conveying mechanism. The test slide rail is fixed on the test profile. Test sliders are respectively provided at both ends of the test beam. The test sliders are slidably connected to the test slide rail. The lifting plate is connected to the test beam. The electrode cylinder mounting plate is movably connected to the lifting plate. The electrode cylinder is fixed on the electrode cylinder mounting plate. The electrode adapter plate is connected to the piston rod of the electrode cylinder. The electrode assembly is fixed on the electrode adapter plate.

[0012] Furthermore, a barcode scanner is connected to the test beam.

[0013] Furthermore, it also includes a supplementary lighting mechanism, which includes two sets of LED light boards. The two sets of LED light boards are respectively arranged on both sides above the EL inspection camera, and the LED light boards are connected to the conveying profile through the light board profile.

[0014] Furthermore, a display is installed on the rack.

[0015] By adopting the above technical solution, the conveying mechanism of this utility model can be adjusted according to the distance of photovoltaic modules of different specifications to meet the testing requirements of photovoltaic modules of different sizes. To enable the EL inspection camera to capture complete EL images of photovoltaic modules of different specifications, this utility model uses a lifting mechanism to adjust the distance between the photovoltaic modules on the conveying mechanism and the EL inspection camera to meet the shooting requirements. Simultaneously, a supplementary lighting mechanism is equipped to provide supplementary lighting during EL inspection camera shooting, making the image clearer and removing some shadows. The position of the electrode assembly on the electrode testing mechanism is adjustable for energizing photovoltaic modules of different specifications. This utility model has a simple and practical structure and can meet the EL testing requirements of photovoltaic modules of different specifications. Attached Figure Description

[0016] Figure 1 This is a front view of the EL testing equipment of this utility model, applicable to photovoltaic modules of various specifications; Figure 2 This is a schematic diagram of the conveying mechanism of this utility model; Figure 3 This is a schematic diagram of the active end of the conveying mechanism of this utility model; Figure 4 This is a schematic diagram of the passive end of the conveying mechanism of this utility model; Figure 5 This is a schematic diagram of the lifting mechanism of this utility model; Figure 6 This is a schematic diagram of the electrode testing mechanism of this utility model; Figure 7 This is a schematic diagram of the supplementary lighting mechanism of this utility model; Figure 8 This is a schematic diagram of the installation of the display of this utility model. Detailed Implementation

[0017] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0018] like Figure 1 , 8 As shown, this embodiment provides an EL testing device suitable for photovoltaic modules of various specifications. It includes a frame 1 and a conveying mechanism 2, a lifting mechanism 3, an EL testing camera 4, an electrode testing mechanism 5, a supplementary lighting mechanism 7, and a display 8, all mounted on the frame 1.

[0019] The conveying mechanism 2 is used to convey photovoltaic modules 6 of different sizes, which can meet the EL testing requirements of photovoltaic modules 6 of various specifications.

[0020] The electrode testing mechanism 5 is located above the conveying mechanism 2, and the electrode testing mechanism 5 is used to energize the photovoltaic module 6 on the conveying mechanism 2.

[0021] The EL inspection camera 4 is located below the conveying mechanism 2. The EL inspection camera 4 is used to perform EL inspection on the photovoltaic module 6 after it is powered on.

[0022] The lifting mechanism 3 is located below the conveying mechanism 2, and is used to adjust the distance between the conveying mechanism 2 and the EL inspection camera 4. Since photovoltaic modules 6 of different specifications have different sizes, it is necessary to adjust the distance between the conveying mechanism 2 and the EL inspection camera 4 so that the EL inspection camera 4 below the conveying mechanism 2 can capture a complete image of the photovoltaic module 6.

[0023] The supplementary lighting mechanism 7 can move together with the conveying mechanism 2 to provide supplementary lighting when the EL inspection camera 4 takes pictures, making the image clearer and removing some shadows.

[0024] The display 8 is used to display images of the photovoltaic module 6 after it has been powered on, captured by the EL detection camera 4.

[0025] like Figure 2As shown, in this embodiment, the conveying mechanism 2 is installed in the middle of the frame 1. The conveying mechanism 2 includes a conveying support frame 21, a power component 22, a transmission main shaft 23, a main shaft bearing seat 24, and single-sided conveying components 25. The conveying support frame 21 is slidably connected to the frame 1 via a slider rail assembly. The lifting mechanism 3 drives the conveying support frame 21 to move up and down on the frame 1. The power component 22 is fixed to the conveying support frame 21 and is used to drive the transmission main shaft 23 to rotate. Both sets of single-sided conveying components 25 are slidably connected to the conveying support frame 21. After the two sets of single-sided conveying components 25 are adjusted to the position according to the size of the photovoltaic module 6, they can be fixed on the transmission main shaft 23. The main shaft bearing seat 24 is fixed to the conveying support frame 21. The transmission main shaft 23 is rotatably connected to the main shaft bearing seat 24. Both sets of single-sided conveying components 25 are movably connected to the transmission main shaft 23. The transmission main shaft 23 is used to drive the two sets of single-sided conveying components 25 to rotate, thereby conveying the photovoltaic module 6.

[0026] like Figure 2 , 3 As shown, the power assembly 22 in this embodiment includes a conveyor motor 221, a first belt 222, a first drive pulley 223, and a first driven pulley. The conveyor motor 221 is fixed on the conveyor support frame 21, the first drive pulley 223 is fixed on the motor shaft of the conveyor motor 221, and the first driven pulley is fixed on the transmission main shaft 23. The first belt 222 connects the first drive pulley 223 and the first driven pulley. After the conveyor motor 221 starts, it drives the first drive pulley 223 to rotate. The first drive pulley 223 drives the first driven pulley to rotate through the first belt 222, and the first driven pulley then drives the transmission main shaft 23 to rotate.

[0027] like Figure 2 , 3As shown in Figure 4, the single-sided conveying assembly 25 of this embodiment includes a conveying profile 251, an active end slider connecting plate 252, an active end bearing seat 253, a second active pulley 254, a second belt 255, a second driven pulley 256, a passive end mounting plate 257, and a passive end slider connecting plate 258. One end of the conveying profile 251 is connected to the active end slider connecting plate 252, and the active end slider connecting plate 252 is slidably connected to the conveying support frame 21 through a slider rail assembly. The active end bearing seat 253 is connected to one end of the conveying profile 251. Both the active end bearing seat 253 and the second active pulley 254 are slidably connected to the transmission main shaft 23. The transmission main shaft 23 drives the second active pulley 254 to rotate. Two planes for fixing the second active pulley 254 are provided on the outer wall of the transmission main shaft 23. The second active pulley 254 is provided with threaded holes, and screws are installed in the threaded holes. The conveyor profile 251 is moved according to the size of the photovoltaic module 6. After being moved to the desired position, the screws are tightened to fix the second drive pulley 254 onto the transmission shaft 23. The second driven pulley 256 is connected to the other end of the conveyor profile 251 through the passive end mounting plate 257. The passive end mounting plate 257 is connected to the passive end slider connecting plate 258. Similarly, the passive end slider connecting plate 258 is slidably connected to the conveyor support frame 21 through the slider rail assembly. A second belt 255 connects the second drive pulley 254 and the second driven pulley 256. After the power unit 22 is started, it can drive the second drive pulley 254, the second belt 255, and the second driven pulley 256 to rotate through the transmission shaft 23.

[0028] like Figure 3 As shown, the single-sided conveying assembly 25 in this embodiment also includes aligning wheels 259, with a plurality of aligning wheels 259 disposed on the conveying profile 251. The photovoltaic module 6 is aligned by the aligning wheels 259 on the two sets of single-sided conveying assemblies 25, facilitating conveying and photography.

[0029] like Figure 1 , 5 As shown, the lifting mechanism 3 in this embodiment includes a lifting cylinder 31, an upper mounting plate 32, and a lower mounting plate 33. The lifting cylinder 31 is located below the conveying support frame 21. The top of the lifting cylinder 31 is connected to the frame 1 via the upper mounting plate 32, and the bottom of the lifting cylinder 31 is connected to the frame 1 via the lower mounting plate 33. The piston rod of the lifting cylinder 31 is connected to the bottom of the conveying support frame 21. In this embodiment, three lifting cylinders 31 are installed on each of the two sides below the conveying support frame 21. The lifting cylinders 31 drive the conveying support frame 21 to move up and down, thereby driving the photovoltaic module 6 on the conveying support frame 21 to move up and down, so that the EL inspection camera 4 can capture a complete image of the photovoltaic module 6.

[0030] like Figure 1 , 6As shown, the electrode testing mechanism 5 in this embodiment includes a test profile 51, a test slide rail 52, a test slider 53, a test beam 54, a lifting plate 55, an electrode cylinder 56, an electrode cylinder mounting plate 57, an electrode adapter plate 58, and an electrode assembly 59. The test profile 51 is fixed to the frame 1 and located above the conveying mechanism 2. The test slide rail 52 is fixed to the test profile 51. Test sliders 53 are respectively provided at both ends of the test beam 54, and the test sliders 53 are slidably connected to the test slide rail 52. The lifting plate 55 is connected to the test beam 54. The electrode cylinder mounting plate 57 is movably connected to the lifting plate 55. The electrode cylinder 56 is fixed to the electrode cylinder mounting plate 57. The electrode adapter plate 58 is connected to the piston rod of the electrode cylinder 56. The electrode assembly 59 is fixed to the electrode adapter plate 58. The test beam 54 is slidably connected to the test profile 51, allowing adjustment of the horizontal position of the electrode assembly 59. After the electrode assembly 59 is positioned horizontally, the electrode cylinder 56 presses down, causing the electrode assembly 59 to contact the junction box of the photovoltaic module 6, thus energizing the photovoltaic module 6.

[0031] like Figure 6 As shown, a barcode scanner 510 is connected to the test beam 54 in this embodiment. The barcode scanner 510 is used to scan the QR code and barcode on the photovoltaic module 6 and read the product information of the photovoltaic module 6.

[0032] like Figure 7 As shown, the supplementary lighting mechanism 7 in this embodiment includes two sets of LED light boards 71. The two sets of LED light boards 71 ​​are respectively arranged on the upper sides of the EL detection camera 4. The LED light boards 71 ​​are connected to the conveying profile 251 through the light board profile 72. The LED light boards 71 ​​can move up and down with the conveying profile 251 to provide supplementary lighting when the EL detection camera 4 takes pictures, providing sufficient brightness for the picture, making the image clearer, and removing unnecessary shadows.

[0033] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An EL testing device suitable for photovoltaic modules of various specifications, characterized in that: An EL testing device suitable for photovoltaic modules of various specifications is characterized in that: it includes a frame (1) and a conveying mechanism (2), a lifting mechanism (3), an EL testing camera (4) and an electrode testing mechanism (5) disposed on the frame (1); The conveying mechanism (2) is used to convey photovoltaic modules (6) of different sizes; The electrode testing mechanism (5) is located above the conveying mechanism (2), and the electrode testing mechanism (5) is used to energize the photovoltaic module (6) on the conveying mechanism (2); The EL detection camera (4) is located below the conveying mechanism (2), and the EL detection camera (4) is used to perform EL detection on the photovoltaic module (6) after it is powered on; The lifting mechanism (3) is located below the conveying mechanism (2), and the lifting mechanism (3) is used to adjust the distance between the conveying mechanism (2) and the EL detection camera (4); The electrode testing mechanism (5) includes a test profile (51), a test slide rail (52), a test slider (53), a test crossbeam (54), a lifting plate (55), an electrode cylinder (56), an electrode cylinder mounting plate (57), an electrode adapter plate (58), and an electrode assembly (59). The test profile (51) is fixed on the frame (1) and located above the conveying mechanism (2). The test slide rail (52) is fixed on the test profile (51). The test crossbeam (54) is... Test sliders (53) are provided at both ends. The test sliders (53) are slidably connected to the test slide rail (52). The hoisting plate (55) is connected to the test crossbeam (54). The electrode cylinder mounting plate (57) is movably connected to the hoisting plate (55). The electrode cylinder (56) is fixed on the electrode cylinder mounting plate (57). The electrode adapter plate (58) is connected to the piston rod of the electrode cylinder (56). The electrode assembly (59) is fixed on the electrode adapter plate (58).

2. The EL testing equipment for multi-specification photovoltaic modules according to claim 1, characterized in that: The conveying mechanism (2) includes a conveying support frame (21), a power component (22), a transmission main shaft (23), a main shaft bearing seat (24), and a single-sided conveying component (25). The conveying support frame (21) is slidably connected to the frame (1). The lifting mechanism (3) drives the conveying support frame (21) to move up and down on the frame (1). The power component (22) is fixed on the conveying support frame (21). The power component (22) is used to drive the transmission main shaft (23) to rotate. Both sets of single-sided conveying components (25) are slidably connected to the conveying support frame (21). The main shaft bearing seat (24) is fixed on the conveying support frame (21). The transmission main shaft (23) is rotatably connected to the main shaft bearing seat (24). Both sets of single-sided conveying components (25) are movably connected to the transmission main shaft (23). The transmission main shaft (23) is used to drive the two sets of single-sided conveying components (25) to operate.

3. The EL testing equipment for multi-specification photovoltaic modules according to claim 2, characterized in that: The power assembly (22) includes a conveyor motor (221), a first belt (222), a first driving pulley (223), and a first driven pulley. The conveyor motor (221) is fixed on the conveyor support frame (21), the first driving pulley (223) is fixed on the motor shaft of the conveyor motor (221), and the first driven pulley is fixed on the transmission main shaft (23). The first belt (222) connects the first driving pulley (223) and the first driven pulley.

4. The EL testing equipment for multi-specification photovoltaic modules according to claim 3, characterized in that: The single-sided conveying assembly (25) includes a conveying profile (251), an active end slider connecting plate (252), an active end bearing seat (253), a second active pulley (254), a second belt (255), a second driven pulley (256), a passive end mounting plate (257), and a passive end slider connecting plate (258). One end of the conveying profile (251) is connected to the active end slider connecting plate (252), and the active end slider connecting plate (252) is slidably connected to the conveying support frame (21). The active end bearing seat (253) is connected to one end of the conveying profile (251), and the active end shaft... The bearing (253) and the second driving pulley (254) are both slidably connected to the transmission main shaft (23). The transmission main shaft (23) drives the second driving pulley (254) to rotate. The second driven pulley (256) is connected to the other end of the conveying profile (251) through the passive end mounting plate (257). The passive end mounting plate (257) is connected to the passive end slider connecting plate (258). The passive end slider connecting plate (258) is slidably connected to the conveying support frame (21). A second belt (255) is connected between the second driving pulley (254) and the second driven pulley (256).

5. The EL testing equipment for multi-specification photovoltaic modules according to claim 4, characterized in that: The single-sided conveying assembly (25) also includes a aligning wheel (259), and a plurality of the aligning wheels (259) are arranged on the conveying profile (251).

6. The EL testing equipment for multi-specification photovoltaic modules according to claim 2, characterized in that: The lifting mechanism (3) includes a lifting cylinder (31), an upper mounting plate (32) and a lower mounting plate (33). The lifting cylinder (31) is located below the conveying support frame (21). The top of the lifting cylinder (31) is connected to the frame (1) through the upper mounting plate (32). The bottom of the lifting cylinder (31) is connected to the frame (1) through the lower mounting plate (33). The piston rod of the lifting cylinder (31) is connected to the bottom of the conveying support frame (21).

7. The EL testing equipment for multi-specification photovoltaic modules according to claim 1, characterized in that: A barcode scanner (510) is connected to the test beam (54).

8. The EL testing equipment for multi-specification photovoltaic modules according to claim 4, characterized in that: It also includes a supplementary lighting mechanism (7), which includes two sets of LED light boards (71). The two sets of LED light boards (71) are respectively set on the upper sides of the EL detection camera (4). The LED light boards (71) are connected to the conveying profile (251) through the light board profile (72).

9. The EL testing equipment for multi-specification photovoltaic modules according to claim 1, characterized in that: A display (8) is installed on the rack (1).

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