Photovoltaic module testing device

Abstract

The utility model relates to the technical field of photovoltaic assembly testing, in particular to a photovoltaic assembly testing device which comprises a rack, a conveying device, a model detecting device, a shooting device and an EL testing device, the conveying device, the model detecting device, the shooting device and the EL testing device are arranged on the rack, the model detecting device and the EL testing device are both located above the conveying device, and the shooting device is located below the conveying device. The control device is in communication connection with the conveying device, the model detection device, the shooting device and the EL testing device; wherein the EL testing device comprises a lifting mechanism, a sliding mechanism and a testing mechanism, the fixed end of the sliding mechanism is connected with the rack through the lifting mechanism, the sliding end of the sliding mechanism is connected with the testing mechanism, the testing end of the testing mechanism faces the conveying device, and the sliding direction of the sliding mechanism is not parallel to the conveying direction of the conveying device. According to the utility model, test adjustment can be carried out according to the model of the photovoltaic module, and the production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component testing, and more specifically, to a photovoltaic component testing device. Background Art

[0002] Photovoltaic modules are the core component of solar power generation systems, converting solar energy into electricity, primarily used to power loads or store it in batteries. EL testing is a crucial step in the quality inspection of photovoltaic modules on the production line, enabling the evaluation of their quality.

[0003] When conducting EL testing on photovoltaic modules on existing EL testing lines, the line must be stopped and the test equipment must be adjusted to the current module layout to adapt it to the current module layout. However, this adjustment process requires significant manpower and time, impacting production efficiency and the normal operation of the equipment. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiency of the prior art that it is inconvenient to debug equipment according to the layout of the photovoltaic module, and to provide a photovoltaic module testing device that can perform testing and adjustment according to the layout of the photovoltaic module, thereby improving production efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A photovoltaic module testing device is provided, comprising a frame and a conveying device, a pattern detection device, a photographing device, and an EL testing device arranged on the frame, wherein the pattern detection device and the EL testing device are both located above the conveying device, and the photographing device is located below the conveying device; and further comprising a control device communicatively connected to the conveying device, the pattern detection device, the photographing device, and the EL testing device; wherein the EL testing device comprises a lifting mechanism, a sliding mechanism, and a testing mechanism, wherein a fixed end of the sliding mechanism is connected to the frame via the lifting mechanism, a sliding end of the sliding mechanism is connected to the testing mechanism, the testing end of the testing mechanism faces the conveying device, and the sliding direction of the sliding mechanism is not parallel to the conveying direction of the conveying device.

[0007] The utility model is a photovoltaic module testing device. The transmission device is set to transmit the photovoltaic modules to be tested one by one. The version detection device is used to detect the version of the photovoltaic module to be tested currently, and the sliding mechanism is adjusted by the control device according to the detected version, so that the test end of the test mechanism installed on the sliding mechanism is adapted to the version of the photovoltaic module to be tested currently, thereby improving the debugging efficiency. Then, the test end of the test mechanism is driven to approach or move away from the photovoltaic module by the lifting mechanism to complete the EL test of the photovoltaic module. The setting of the shooting device can be used to detect defects of the photovoltaic module by collecting images.

[0008] Preferably, the testing mechanism includes a first probe, a second probe, and a third probe, the second probe is located between the first probe and the third probe, the first probe and the third probe are both connected to the sliding section of the sliding mechanism, and the second probe is connected to the non-sliding section of the sliding mechanism.

[0009] Preferably, the sliding mechanism includes a mounting frame connected to the lifting mechanism, a first driving member connected to the mounting frame, and a guide screw drivingly connected to the first driving member, and the guiding direction of the guide screw is perpendicular to the conveying direction of the conveying device; the first probe and the third probe are both slidably engaged with the mounting frame and are both connected to the sliding section of the guide screw; the second probe is engaged with the mounting frame and is connected to the non-sliding section of the guide screw.

[0010] Preferably, the sliding section of the guide screw includes a first screw and a second screw, and the non-sliding section of the guide screw includes a connecting rod. The first screw, the connecting rod, and the second screw are connected in sequence, and the thread rotation directions of the first screw and the second screw are opposite; the first probe is connected to the first screw in a transmission manner, the second probe is connected to the connecting rod, and the third probe is connected to the second screw in a transmission manner.

[0011] Preferably, a guide groove is provided on the mounting frame, and the guide groove is connected to a first slider and a second slider. The first probe is connected to the first screw through the first slider, and the third probe is connected to the second screw through the second slider; a locking mechanism is provided between the first slider, the second slider and the guide groove.

[0012] Preferably, the pattern detection device includes a first detector installed on the frame, the first detector is arranged on both sides of the conveying device, and the first detector is located directly below the EL testing device.

[0013] Preferably, the version detection device includes a second detector installed on the frame, and the second detector is located at the feeding end of the conveying device.

[0014] Preferably, the conveying device includes rollers installed at both ends of the frame, a second driving member drivingly connected to the rollers, and a conveyor belt transmission-connected to the rollers, and the conveyor belt is located at the end position of the rollers; the conveying device also includes a plurality of rollers arranged along the conveying direction, and the rollers are installed on the frame and transmission-connected to the conveyor belt.

[0015] Preferably, the photographing device is located directly below the EL testing device, and the photographing device is an infrared photographing device.

[0016] Preferably, the frame includes a base and a support frame connected to the base, mounting plates are connected to both sides of the support frame, the conveying device is installed on the mounting plate, the plate detection device and the lifting mechanism are both installed on the support frame, and the shooting device is installed on the base.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The pattern detection device can be used to detect the pattern of the photovoltaic module to be tested, and debug the EL test device through the control device according to the detected pattern to improve debugging efficiency;

[0019] 2. The first detector can be used to detect whether the photovoltaic module is in place, and can also be used to detect the width of the photovoltaic module. According to the width information, the position of the lead wire of the photovoltaic module can be obtained and the EL test device can be debugged accordingly;

[0020] 3. The second detector can be used to detect the length of the photovoltaic module. According to the length information, the type of the photovoltaic module can be further confirmed, thereby improving the debugging efficiency of the EL test device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a photovoltaic module testing device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the rack and EL test device of the utility model;

[0023] Figure 3 This is a structural diagram of the sliding mechanism and the testing mechanism of the utility model;

[0024] Figure 4 This is a schematic structural diagram of the lead screw and the testing mechanism of the utility model;

[0025] Figure 5 This is a usage status diagram of a photovoltaic module testing device of the present utility model.

[0026] In the accompanying drawings: 100, frame; 110, base; 120, support frame; 130, mounting plate; 140, support rod; 200, conveying device; 210, roller; 220, second driving member; 230, conveyor belt; 240, roller; 300, version detection device; 310, first detector; 320, second detector; 400, shooting device; 500, lifting mechanism; 600, sliding mechanism; 610, mounting frame; 611, guide groove; 620, first driving member; 630, guide screw; 631, first screw; 632, connecting rod; 633, second screw; 640, first slider; 650, second slider; 660, locking mechanism; 670, bearing seat; 700, testing mechanism; 710, first probe; 720, second probe; 730, third probe; 800, photovoltaic module. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and so on indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Example 1

[0030] like Figures 1 to 4The figure shows a first embodiment of a photovoltaic module testing device of the present invention, which includes a frame 100 and a conveying device 200, a pattern detection device 300, a shooting device 400, and an EL testing device arranged on the frame 100, wherein the pattern detection device 300 and the EL testing device are both located above the conveying device 200, and the shooting device 400 is located below the conveying device 200; it also includes a control device that is communicatively connected to the conveying device 200, the pattern detection device 300, the shooting device 400, and the EL testing device; wherein the EL testing device includes a lifting mechanism 500, a sliding mechanism 600, and a testing mechanism 700, wherein the fixed end of the sliding mechanism 600 is connected to the frame 100 through the lifting mechanism 500, the sliding end of the sliding mechanism 600 is connected to the testing mechanism 700, the testing end of the testing mechanism 700 faces the conveying device 200, and the sliding direction of the sliding mechanism 600 is not parallel to the conveying direction of the conveying device 200.

[0031] The conveying device 200 is configured to transport the photovoltaic modules 800 to be tested one by one. The pattern detection device 300 is configured to detect the pattern of the photovoltaic module 800 currently being tested. Based on the detected pattern, the control device adjusts the sliding mechanism 600 so that the test end of the testing mechanism 700 mounted on the sliding mechanism 600 is adapted to the pattern of the photovoltaic module 800 currently being tested, thereby improving debugging efficiency. The lifting mechanism 500 then drives the test end of the testing mechanism 700 toward or away from the photovoltaic module 800, completing the EL test of the photovoltaic module 800. The camera 400 is configured to detect defects in the photovoltaic module 800 by capturing images. In this embodiment, the control device may be a single-chip microcomputer or a PLC controller.

[0032] like Figures 2 to 4As shown, the testing mechanism 700 includes a first probe 710, a second probe 720, and a third probe 730 that are communicatively connected to the control device. The second probe 720 is located between the first probe 710 and the third probe 730. The first probe 710 and the third probe 730 are both connected to the sliding section of the sliding mechanism 600, and the second probe 720 is connected to the non-sliding section of the sliding mechanism 600. The sliding mechanism 600 includes a mounting frame 610 connected to the lifting mechanism 500, a first driving member 620 connected to the mounting frame 610, and a lead screw 630 drivingly connected to the first driving member 620. The guide direction of the lead screw 630 is perpendicular to the conveying direction of the conveying device 200. The first probe 710 and the third probe 730 are both slidably engaged with the mounting frame 610 and connected to the sliding section of the lead screw 630. The second probe 720 is engaged with the mounting frame 610 and connected to the non-sliding section of the lead screw 630. In this embodiment, the first driving member 620 is in communication connection with the control device, and the first driving member 620 is a first motor, which is drivingly connected to the lead screw 630 .

[0033] like Figure 4 As shown, in this embodiment, the sliding section of the guide screw 630 includes a first screw 631 and a second screw 633, and the non-sliding section of the guide screw 630 includes a connecting rod 632. The first screw 631, the connecting rod 632, and the second screw 633 are connected in sequence, and the thread rotation directions of the first screw 631 and the second screw 633 are opposite; the first probe 710 is transmission-connected to the first screw 631, the second probe 720 is connected to the connecting rod 632, and the third probe 730 is transmission-connected to the second screw 633.

[0034] Specifically, the mounting frame 610 is provided with a guide slot 611 extending parallel to the lead screw 630, with its opening facing the conveyor 200. A first slider 640 and a second slider 650 are slidably connected within the guide slot 611. The first slider 640 is threadedly connected to the first screw 631, and the first probe 710 is connected to the bottom of the first slider 640. The second slider 650 is threadedly connected to the second screw 633, and the third probe 730 is connected to the bottom of the second slider 650. In this embodiment, a bearing seat 670 is also secured within the guide slot 611. The connecting rod 632 is a cylindrical connecting rod. The second probe 720 is connected to the connecting rod 632 via the bearing seat 670, ensuring that the position of the second probe 720 does not move during the rotation of the lead screw 630. Preferably, the bearing seat 670 is fixedly connected to the guide slot 611.

[0035] In order to enable the testing mechanism 700 to achieve stable testing, a locking mechanism 660 is provided between the first slider 640 and the guide groove 611, and between the second slider 650 and the guide groove 611. In this embodiment, the locking mechanism 660 is a pneumatic retractable pin, which is in communication with a control device. The control device can control the pneumatic retractable pin to extend and abut against the guide groove 611 to achieve locking between the first slider 640, the second slider 650 and the guide groove 611, or control the pneumatic retractable pin to retract to achieve separation and release between the first slider 640, the second slider 650 and the guide groove 611, such as Figure 3 shown.

[0036] like Figure 2 As shown, the lifting mechanism 500 includes a cylinder that is communicatively connected to the control device, the cylinder seat of the cylinder is connected to the frame 100, and the piston rod of the cylinder is connected to the mounting frame 610. The control device can control the first probe 710, the second probe 720 and the third probe 730 to move downward or upward by controlling the extension and contraction of the cylinder.

[0037] like Figure 1 As shown, the shooting device 400 is located directly below the EL test device. In this embodiment, the shooting device 400 is an infrared shooting device. Specifically, the infrared shooting device is an infrared camera. Preferably, a high-resolution infrared camera can be selected.

[0038] The working principle of a photovoltaic module testing device in this embodiment is as follows:

[0039] The photovoltaic components 800 to be tested are arranged and placed on the conveying device 200. During the conveying process, when the photovoltaic components 800 are located directly below the testing mechanism 700, the control device controls the conveying device 200 to stop, and controls the pattern detection device 300 to perform pattern detection on the photovoltaic components 800, and then transmits the detected pattern information to the control device. According to the pattern information, the position of the current lead wire of the photovoltaic component 800 can be obtained. The control device can control the first driving member 620 according to the pattern information to slide the first slider 640 and the second slider 650, and drive the first probe 710 and the third probe 730 to move their positions so that they can adapt to the position of the lead wire of the current photovoltaic component 800, and then through the locking mechanism 660 locks the first probe 710 and the third probe 730 in their current positions; then, the control device controls the lifting mechanism 500 to drive the testing mechanism 700 to move downward until the first probe 710, the second probe 720, and the third probe 730 respectively contact the corresponding lead wires of the photovoltaic component 800 and perform a test; during the test process, the photographing device 400 takes an infrared image of the photovoltaic component 800 and obtains information on whether the photovoltaic component 800 has defects through the infrared image; after the test is completed, the testing mechanism 700 is driven to move upward by the lifting mechanism 500 to separate the testing mechanism 700 from the photovoltaic component 800; then, the conveying device 200 continues to convey and test the next photovoltaic component 800.

[0040] Example 2

[0041] This embodiment is a second embodiment of a photovoltaic module testing device. This embodiment is similar to the first embodiment, except that Figure 1 and Figure 5 As shown, the pattern detection device 300 includes two first detectors 310 mounted on the frame 100. The two first detectors 310 are respectively located on either side of the conveyor 200, and the first detectors 310 are located directly below the EL test device. The first detectors 310 are in communication with the control device. The first detectors 310 can be used to detect whether the photovoltaic module 800 has reached the position directly below the test mechanism 700. They can also be used to detect the width of the photovoltaic module 800. Based on this width information, the pattern of the photovoltaic module 800 can be determined, and the position of the lead wires on the photovoltaic module 800 can be determined. In this embodiment, the first detectors 310 can be infrared sensors, laser sensors, or other sensors capable of performing detection functions.

[0042] like Figure 1 and Figure 5As shown, the pattern detection device 300 further includes a second detector 320 mounted on the frame 100. The second detector 320 is located at the feed end of the conveyor 200. The second detector 320 can be used to detect the length of the photovoltaic module 800, and the pattern of the photovoltaic module 800 can be further confirmed based on the length information. In this embodiment, the second detector 320 can be an infrared sensor, a laser sensor, or other sensors capable of performing detection functions.

[0043] The working principle of a photovoltaic module testing device in this embodiment is as follows:

[0044] The photovoltaic components 800 to be tested are arranged and placed on the conveying device 200. During the initial conveying process of the photovoltaic components 800, the length of the photovoltaic components 800 can be detected by the second detector 320; and when the photovoltaic components 800 are conveyed to the bottom of the testing mechanism 700, the first detector 310 can be triggered and the width of the photovoltaic components 800 can be detected by the first detector 310. The control device can obtain the version information of the photovoltaic components 800 through the length information and width information obtained by detection.

[0045] Example 3

[0046] This embodiment is a third embodiment of a photovoltaic module testing device. This embodiment is similar to the first or second embodiment, except that: Figure 1 and Figure 5 As shown, the conveying device 200 includes rollers 210 installed at both ends of the frame 100, a second driving member 220 drivingly connected to the rollers 210, and a conveyor belt 230 drivingly connected to the rollers 210, and the conveyor belt 230 is located at the end position of the rollers 210; the conveying device 200 also includes a plurality of rollers 240 arranged along the conveying direction, the rollers 240 are installed on the frame 100, and are drivingly connected to the conveyor belt 230.

[0047] like Figure 1 and Figure 5 As shown, the frame 100 includes a base 110 and a support frame 120 connected to the base 110. Mounting plates 130 are connected to the left and right sides of the support frame 120. The conveyor 200 is mounted on the mounting plates 130. The lifting mechanism 500 is mounted on the support frame 120. The first detector 310 and the lifting mechanism 500 are both located above the conveyor belt 230. The camera 400 is mounted on the base 110. In this embodiment, a support rod 140 is connected to the front end of the support frame 120. The second detector 320 is mounted on the support rod 140. The second detector 320 is located above the conveyor belt 230.

[0048] Specifically, two conveyor belts 230 are provided, each positioned near the left and right mounting plates 130. Rollers 240 are disposed within the conveyor belts 230, and the axles of the rollers 240 are rotatably connected to the mounting plates 130. The rollers 240 support the conveyor belts 230 and enhance the conveying stability of the conveyor belts 230. It should be noted that the arrangement of the rollers 210, conveyor belts 230, and rollers 240 creates a hollowed-out structure within the conveyor device 200, facilitating the bottom camera 400's ability to photograph the photovoltaic modules 800.

[0049] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A photovoltaic module testing device, characterized in that: The invention comprises a frame (100) and a conveying device (200), a pattern detection device (300), a shooting device (400), and an EL testing device arranged on the frame (100), wherein the pattern detection device (300) and the EL testing device are both located above the conveying device (200), and the shooting device (400) is located below the conveying device (200); and further comprises a control device that is communicatively connected to the conveying device (200), the pattern detection device (300), the shooting device (400), and the EL testing device; The EL testing device comprises a lifting mechanism (500), a sliding mechanism (600), and a testing mechanism (700); the fixed end of the sliding mechanism (600) is connected to the frame (100) via the lifting mechanism (500); the sliding end of the sliding mechanism (600) is connected to the testing mechanism (700); the testing end of the testing mechanism (700) faces the conveying device (200); and the sliding direction of the sliding mechanism (600) is not parallel to the conveying direction of the conveying device (200).

2. The photovoltaic module testing device according to claim 1, characterized in that: The testing mechanism (700) comprises a first probe (710), a second probe (720), and a third probe (730); the second probe (720) is located between the first probe (710) and the third probe (730); the first probe (710) and the third probe (730) are both connected to the sliding section of the sliding mechanism (600); and the second probe (720) is connected to the non-sliding section of the sliding mechanism (600).

3. The photovoltaic module testing device according to claim 2, characterized in that: The sliding mechanism (600) includes a mounting frame (610) connected to the lifting mechanism (500), a first driving member (620) connected to the mounting frame (610), and a guide screw (630) drivingly connected to the first driving member (620), wherein the guiding direction of the guide screw (630) is perpendicular to the conveying direction of the conveying device (200); the first probe (710) and the third probe (730) are both slidably engaged with the mounting frame (610) and are both connected to the sliding section of the guide screw (630); the second probe (720) is engaged with the mounting frame (610) and is connected to the non-sliding section of the guide screw (630).

4. The photovoltaic module testing device according to claim 3, characterized in that: The sliding section of the guide screw (630) includes a first screw (631) and a second screw (633), and the non-sliding section of the guide screw (630) includes a connecting rod (632). The first screw (631), the connecting rod (632), and the second screw (633) are connected in sequence, and the thread rotation directions of the first screw (631) and the second screw (633) are opposite; the first probe (710) is connected to the first screw (631) in a transmission manner, the second probe (720) is connected to the connecting rod (632), and the third probe (730) is connected to the second screw (633) in a transmission manner.

5. The photovoltaic module testing device according to claim 4, characterized in that: The mounting frame (610) is provided with a guide groove (611), the guide groove (611) is connected to a first slider (640) and a second slider (650), the first probe (710) is connected to the first screw (631) via the first slider (640), and the third probe (730) is connected to the second screw (633) via the second slider (650); and a locking mechanism (660) is provided between the first slider (640), the second slider (650) and the guide groove (611).

6. The photovoltaic module testing device according to any one of claims 1 to 5, characterized in that: The plate detection device (300) comprises a first detector (310) mounted on the frame (100), the first detector (310) being arranged on both sides of the conveying device (200), and the first detector (310) being located directly below the EL testing device.

7. The photovoltaic module testing device according to claim 6, characterized in that: The version detection device (300) includes a second detector (320) installed on the frame (100), and the second detector (320) is located at the feeding end of the conveying device (200).

8. The photovoltaic module testing device according to any one of claims 1 to 5, characterized in that: The conveying device (200) comprises rollers (210) mounted on both ends of the frame (100), a second driving member (220) drivingly connected to the rollers (210), and a conveyor belt (230) drivingly connected to the rollers (210), wherein the conveyor belt (230) is located at the end of the rollers (210); the conveying device (200) further comprises a plurality of rollers (240) arranged along the conveying direction, wherein the rollers (240) are mounted on the frame (100) and drivingly connected to the conveyor belt (230).

9. The photovoltaic module testing device according to any one of claims 1 to 5, characterized in that: The shooting device (400) is located directly below the EL testing device, and the shooting device (400) is an infrared shooting device.

10. The photovoltaic module testing device according to any one of claims 1 to 5, characterized in that: The frame (100) comprises a base (110) and a support frame (120) connected to the base (110); mounting plates (130) are connected to both sides of the support frame (120); the conveying device (200) is mounted on the mounting plates (130); the plate detection device (300) and the lifting mechanism (500) are both mounted on the support frame (120); and the shooting device (400) is mounted on the base (110).

Images