Photovoltaic module conveying device

Abstract

The utility model provides a photovoltaic module conveying device which comprises a feeding mechanism, a discharging mechanism and two positioning mechanisms, the feeding mechanism is arranged behind the discharging mechanism and fixed on an external machine table, the discharging mechanism is arranged in front of the feeding mechanism, and the two positioning mechanisms are arranged between the feeding mechanism and the discharging mechanism and fixed on the left side and the right side of the external machine table respectively. The position, limited by the two positioning mechanisms, of the photovoltaic module is a detection position, the feeding mechanism feeds the photovoltaic module, the two positioning mechanisms limit the photovoltaic module at the detection position for detection, the two positioning mechanisms release the photovoltaic module after detection, and the discharging mechanism discharges the photovoltaic module for discharging. The photovoltaic module conveying device can convey photovoltaic modules for detection.

Description

Technical Field

[0001] This utility model belongs to the technical field of photovoltaic module manufacturing equipment, and in particular relates to a photovoltaic module conveying device. Background Technology

[0002] See Figure 1 The photovoltaic module 10 consists of a solar panel 11, a frame 12, and an electrical connector group 13. The electrical connector group 13 is generally located in the middle or end of the photovoltaic module 10 along its length. Figure 1 The first electrical connector 131, the second electrical connector 132, and the third electrical connector 133 are arranged in a wide direction for outputting the electricity generated by the photovoltaic module 10. The solar panel 11 is composed of battery cells connected in series and in parallel. Before, during, and after lamination in the photovoltaic module production process, the photovoltaic module needs to undergo EL (electroluminescence) inspection and appearance inspection on both the top and bottom surfaces. The image classification and data analysis are performed by applying AI vision algorithms through machine vision and comparing with standard images to determine whether there are EL (electroluminescence) defects and appearance defects, and to judge whether the quality of the photovoltaic module battery cells and the appearance of the photovoltaic module are qualified.

[0003] The principle of EL (electroluminescence) is the opposite of PV (photovoltaic). By applying a forward bias voltage (DC 10V~50V) to the solar panel's cell array, a large number of non-equilibrium carriers are injected into the cells. These non-equilibrium carriers continuously recombine with the cell's charge carriers, emitting photons and emitting light. A CCD camera captures these photons, and the resulting image is processed by a computer to obtain an EL image. The brightness of the EL image is proportional to the minority carrier diffusion length and current density of the cell. Areas with defects have shorter minority carrier diffusion lengths, resulting in a darker image. Therefore, EL images are used to effectively detect problems such as microcracks, sintering defects, black cores, and mixed grades in solar cells. EL inspection utilizes the EL principle to inspect the solar panel's cells, and is used for online inspection on photovoltaic module production lines, fault diagnosis during photovoltaic module operation, and performance monitoring.

[0004] Visual inspection involves using a CCD camera to photograph photovoltaic modules and then employing image recognition to detect defects such as dimensional deviations, missing corners, chipped edges, misaligned cells, misaligned busbars, and dirt. Visual inspection is used for online inspection on photovoltaic module production lines.

[0005] Before being framed, photovoltaic modules have relatively poor overall rigidity during photography, making them prone to image distortion. The large size of photovoltaic modules also places high demands on camera field of view and light source, creating stringent requirements for the overall photographic environment and making image glare susceptible to occur. Image distortion and image glare affect the consistency and accuracy of test results.

[0006] To overcome the impact of image distortion and image spot on the consistency and accuracy of inspection results, we developed a photovoltaic module visual inspection system to meet the inspection needs before, during, and after lamination.

[0007] 1. Use an EL camera (5 megapixels, 2736×1824 resolution) to inspect the CCD, and a CCD camera (20 megapixels, 5480×3648 resolution) to inspect the appearance of the top and bottom surfaces.

[0008] 2. The use of LED lighting with ambient light diffusion creates softer lighting in the shooting environment, resulting in better photo quality.

[0009] 3. The wire-driven transmission mechanism, which uses a servo motor and a precision planetary reducer, ensures high conveying accuracy and smooth operation.

[0010] 4. It adopts AI vision algorithms and has the function of machine autonomous deep learning.

[0011] To address this, we developed a photovoltaic module conveying device for transporting photovoltaic modules within photovoltaic module testing equipment. Utility Model Content

[0012] The purpose of this utility model is to provide a photovoltaic module conveying device for conveying photovoltaic modules for testing. It includes a feeding mechanism, a discharging mechanism, and two positioning mechanisms. The feeding mechanism is located at the rear and the discharging mechanism is located at the front, fixed on an external machine platform. The two positioning mechanisms are located between the feeding mechanism and the discharging mechanism, respectively fixed on the left and right sides of the external machine platform. The position of the photovoltaic module defined by the two positioning mechanisms becomes the testing position. The feeding mechanism feeds in the photovoltaic module, and the two positioning mechanisms limit the photovoltaic module to the testing position for testing. After testing, the two positioning mechanisms release the photovoltaic module, and the discharging mechanism discharges the photovoltaic module for unloading.

[0013] Furthermore, the feeding mechanism includes a feeding conveying component, two feeding edge limiting components, and a feeding detection component. The feeding conveying component is fixed at the middle of the rear of the external machine, and the two feeding edge limiting components are fixed on the two sides of the rear of the external machine. The feeding conveying component and the two feeding edge limiting components form a feeding channel. The feeding detection component is fixed at the middle of the external machine and located at the front end of the feeding channel. The feeding conveying component feeds the photovoltaic module, the two feeding edge limiting components limit the photovoltaic module in the feeding channel, and after the feeding detection component detects the photovoltaic module, two positioning mechanisms limit the photovoltaic module to the detection position for detection.

[0014] Furthermore, the feeding and conveying assembly includes a feeding and conveying bracket, a feeding and conveying driver, a feeding and conveying drive shaft, and three feeding and conveying belt sets. The feeding and conveying bracket is fixed to the rear of the external machine base, the feeding and conveying driver is fixed to one side of the feeding and conveying bracket, the feeding and conveying drive shaft is horizontally fixed to the output end of the feeding and conveying driver, and the three feeding and conveying belt sets are horizontally connected to the feeding and conveying drive shaft from front to back. The feeding and conveying driver is used to drive the feeding and conveying drive shaft to move in the same direction with the three feeding and conveying belt sets to convey the photovoltaic modules.

[0015] Furthermore, the feeding edge limiting assembly includes a feeding edge limiting base plate, a feeding edge limiting slide block, a feeding edge limiting driver, a feeding edge limiting carriage, and multiple feeding edge limiting rollers. The feeding edge limiting base plate is fixed on both sides of the external machine base. The slide rails of the feeding edge limiting driver and the feeding edge limiting slide block are horizontally fixed on the feeding edge limiting base plate. The feeding edge limiting carriage is fixed on the output end of the feeding edge limiting driver and the slider of the feeding edge limiting slide block. Multiple feeding edge limiting rollers are fixed at intervals on the feeding edge limiting carriage. The feeding edge limiting driver is used to drive the feeding edge limiting carriage, along with the multiple feeding edge limiting rollers, to move left and right along the slide rails of the feeding edge limiting slide block to the side of the photovoltaic module, thereby positioning the photovoltaic module in the left and right positions.

[0016] Furthermore, the feeding detection component includes a detection bracket and a detection limit switch. The detection bracket is fixed to the upper middle part of the back of the external machine, and the detection limit switch is vertically fixed on the detection bracket. The detection limit switch includes a detection roller, which can be vertically raised and lowered. When the photovoltaic module is conveyed and presses down the detection roller, the detection limit switch controls the feeding conveyor driver to cut off power and stop rotating. At the same time, it controls two positioning mechanisms to rise and stop the photovoltaic module, so that the photovoltaic module stops at the detection position for detection.

[0017] Furthermore, the delivery mechanism includes a delivery conveying component, two delivery limiting components, a delivery channel, and a delivery detection component. The delivery conveying component is fixed at the front center of the external machine, and the two delivery limiting components are fixed at the front sides of the external machine. The delivery conveying component and the two delivery limiting components constitute the delivery channel. The delivery detection component is fixed at the center of the external machine, located at the rear end of the delivery channel. After the photovoltaic module is detected, the two positioning mechanisms release the photovoltaic module, the delivery conveying component continues to deliver the photovoltaic module, and after the delivery detection component detects the photovoltaic module, the delivery conveying component delivers the photovoltaic module for feeding. At the same time, the two delivery limiting components confine the photovoltaic module within the delivery channel.

[0018] Furthermore, the positioning mechanism includes a positioning bracket upright plate, a positioning roller driver mounting plate, a positioning roller driver, a positioning roller bracket, and positioning rollers. The positioning bracket upright plate is vertically fixed on both sides of the middle of the external machine base. The positioning roller driver mounting plate is fixed on the positioning bracket upright plate. The positioning roller driver is vertically fixed below the positioning roller driver mounting plate. The positioning roller bracket is vertically fixed on the output end of the positioning roller driver. The positioning rollers are horizontally fixed on the positioning roller bracket. The positioning roller driver is used to drive the positioning roller bracket to raise and lower the positioning rollers to stop or release the photovoltaic modules.

[0019] The beneficial effects of a photovoltaic module conveying device are as follows:

[0020] The feeding mechanism is positioned at the rear and the output mechanism at the front, fixed on the external machine platform. Two positioning mechanisms are positioned between the feeding and output mechanisms, fixed on the left and right sides of the external machine platform respectively. The positions of the photovoltaic modules defined by the two positioning mechanisms become the detection positions. The feeding mechanism feeds in the photovoltaic modules, and the two positioning mechanisms limit the photovoltaic modules to the detection positions for testing. After testing, the two positioning mechanisms release the photovoltaic modules, and the output mechanism delivers the photovoltaic modules for unloading. The system can transport photovoltaic modules for testing. Attached Figure Description

[0021] Figure 1 Schematic diagram of photovoltaic module structure;

[0022] Figure 2 Structural diagram of photovoltaic module conveying device;

[0023] Figure 3 Structural diagram of the feeding and conveying assembly;

[0024] Figure 4 Structural diagram of the edge-limiting component;

[0025] Figure 5 Diagram of the probe assembly structure;

[0026] Figure 6 Positioning mechanism structure diagram.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Photovoltaic module; 11. Solar panel; 12. Frame; 13. Electrical connector assembly; 131. First electrical connector; 132. Second electrical connector; 133. Third electrical connector;

[0029] 200. Photovoltaic module conveying device;

[0030] 210. Feeding mechanism; 211. Feeding conveyor assembly; 2111. Feeding conveyor support; 2112. Feeding conveyor driver; 2113. Feeding conveyor drive shaft; 2114. Feeding conveyor belt assembly;

[0031] 212. Feed in the edge limiting assembly; 2121. Feed in the edge limiting base plate; 2122. Feed in the edge limiting slide block; 2123. Feed in the edge limiting driver; 2124. Feed in the edge limiting carriage; 2125. Feed in the edge limiting roller;

[0032] 213. Sent into the channel;

[0033] 214. Feeding detection assembly; 2141. Detection bracket; 2142. Detection limit switch; 21421. Detection roller;

[0034] 220. Delivery mechanism; 221. Delivery conveyor assembly; 222. Delivery edge limiting assembly; 223. Delivery channel; 224. Delivery detection assembly;

[0035] 230. Positioning mechanism; 231. Positioning bracket upright plate; 232. Positioning roller driver mounting plate; 233. Positioning roller driver; 234. Positioning roller bracket; 235. Positioning roller;

[0036] 800, detection position. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, used to refer to a fixed connection, as well as a detachable connection, or an integral connection; used to refer to a direct connection, as well as an indirect connection through an intermediate medium, and used to refer to the internal communication of two components. For those skilled in the art, the specific meaning of the terms in this utility model is understood according to the specific circumstances.

[0039] See Figure 2This embodiment provides a photovoltaic module conveying device 300 for conveying photovoltaic modules 10 for testing. The photovoltaic module conveying device 200 includes a feeding mechanism 210, a discharging mechanism 220, and two positioning mechanisms 230. The feeding mechanism 210 is positioned rearward and the discharging mechanism 220 is positioned in front, fixed on an external machine platform. The two positioning mechanisms 230 are positioned between the feeding mechanism 210 and the discharging mechanism 220, respectively fixed on the left and right sides of the external machine platform. The position of the photovoltaic module 10 defined by the two positioning mechanisms 230 becomes the detection position 800. The feeding mechanism 210 feeds in the photovoltaic module 10, and the two positioning mechanisms 230 define the photovoltaic module 10 at the detection position 800 for testing. After testing, the two positioning mechanisms 230 release the photovoltaic module 10, and the discharging mechanism 220 discharges the photovoltaic module 10 for unloading.

[0040] Further, see Figure 2 The feeding mechanism 210 includes a feeding conveying component 211, two feeding edge limiting components 212, and a feeding detection component 214. The feeding conveying component 211 is fixed on the middle of the rear side of the external machine, and the two feeding edge limiting components 212 are respectively fixed on the two sides of the rear side of the external machine. The feeding conveying component 211 and the two feeding edge limiting components 212 form a feeding channel 213. The feeding detection component 214 is fixed on the middle of the external machine and located at the front end of the feeding channel 213. The feeding conveying component 211 feeds the photovoltaic module 10, and the two feeding edge limiting components 212 limit the photovoltaic module 10 in the feeding channel 213. After the feeding detection component 214 detects the photovoltaic module 10, the two positioning mechanisms 230 limit the photovoltaic module 10 at the detection position 800 for detection.

[0041] Furthermore, see Figure 3 The feeding and conveying assembly 211 includes a feeding and conveying bracket 2111, a feeding and conveying driver 2112, a feeding and conveying drive shaft 2113, and three feeding and conveying belt groups 2114. The feeding and conveying bracket 2111 is fixed to the rear of the external machine base, the feeding and conveying driver 2112 is fixed to one side of the feeding and conveying bracket 2111, the feeding and conveying drive shaft 2113 is horizontally fixed to the output end of the feeding and conveying driver 2112, and the three feeding and conveying belt groups 2114 are horizontally connected to the feeding and conveying drive shaft 2113. The feeding and conveying driver 2112 is used to drive the feeding and conveying drive shaft 2113 to move in the same direction with the three feeding and conveying belt groups 2114 to convey the photovoltaic module 10.

[0042] Furthermore, see Figure 4The feeding edge limiting assembly 212 includes a feeding edge limiting base plate 2121, a feeding edge limiting slide group 2122, a feeding edge limiting driver 2123, a feeding edge limiting carriage 2124, and multiple feeding edge limiting rollers 2125. The feeding edge limiting base plate 2121 is fixed to both sides of the external machine base. The slide rails of the feeding edge limiting driver 2123 and the feeding edge limiting slide group 2122 are horizontally fixed to the feeding edge limiting base plate 2121. The feeding edge limiting slide group 2124 is fixed to the external machine base. Multiple feed-in limiting rollers 2125 are fixed at intervals on the output end of the feed-in limiting driver 2123 and the slider of the feed-in limiting slide 2122. The feed-in limiting driver 2123 is used to drive the feed-in limiting slide 2124 to move left and right along the slide rail of the feed-in limiting slide 2122 with the multiple feed-in limiting rollers 2125 to the side of the photovoltaic module 10 and position the photovoltaic module 10 in the left and right positions.

[0043] Furthermore, see Figure 5 The input detection component 214 includes a detection bracket 2141 and a detection limit switch 2142. The detection bracket 2141 is fixed to the middle of the back of the external machine. The detection limit switch 2142 is vertically fixed on the detection bracket 2141. The detection limit switch 2142 includes a detection roller 21421, which can be vertically raised and lowered. When the photovoltaic module 10 is conveyed and presses down the detection roller 21421, the detection limit switch 2142 controls the input conveyor driver 2112 to be de-energized and stop rotating. At the same time, it controls the two positioning mechanisms 230 to rise and stop the photovoltaic module 10, so that the photovoltaic module 10 stops at the detection position 800 for detection.

[0044] Furthermore, see Figure 2 The delivery mechanism 220 includes a delivery conveying component 221, two delivery limiting components 222, a delivery channel 223, and a delivery detection component 224. The delivery conveying component 221 is fixed on the front middle of the external machine, and the two delivery limiting components 222 are respectively fixed on the two sides of the front of the external machine. The delivery conveying component 221 and the two delivery limiting components 222 constitute the delivery channel 223. The delivery detection component 214 is fixed on the middle of the external machine and located at the rear end of the delivery channel 223. After the photovoltaic module 10 is detected, the two positioning mechanisms 230 release the photovoltaic module 10, the delivery conveying component 211 continues to deliver the photovoltaic module 10, and after the delivery detection component 224 detects the photovoltaic module 10, the delivery conveying component 221 delivers the photovoltaic module 10 for unloading. At the same time, the two delivery limiting components 222 limit the photovoltaic module 10 within the delivery channel 223.

[0045] Further, see Figure 6The positioning mechanism 230 includes a positioning bracket upright plate 231, a positioning roller driver mounting plate 232, a positioning roller driver 233, a positioning roller bracket 234, and a positioning roller 235. The positioning bracket upright plate 231 is vertically fixed on both sides of the middle of the external machine base. The positioning roller driver mounting plate 232 is fixed on the positioning bracket upright plate 231. The positioning roller driver 233 is vertically fixed below the positioning roller driver mounting plate 232. The positioning roller bracket 234 is vertically fixed on the output end of the positioning roller driver. The positioning roller 235 is horizontally fixed on the positioning roller bracket 234. The positioning roller driver 233 is used to drive the positioning roller bracket 234 to raise and lower the positioning roller 235 to stop or release the photovoltaic module 10.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A photovoltaic module conveying device (200) for conveying photovoltaic modules (10) for testing, comprising a feeding mechanism (210), a discharging mechanism (220) and two positioning mechanisms (230), wherein the feeding mechanism (210) is fixed on an external machine platform with the discharging mechanism (220) positioned at the rear and the discharging mechanism (220) positioned at the front, and the two positioning mechanisms (230) are fixed on the left and right sides of the external machine platform between the feeding mechanism (210) and the discharging mechanism (220), wherein the position of the photovoltaic module (10) defined by the two positioning mechanisms (230) is a testing position (800), wherein the feeding mechanism (210) feeds in the photovoltaic module (10), and the two positioning mechanisms (230) define the photovoltaic module (10) at the testing position (800) for testing, wherein after testing, the two positioning mechanisms (230) release the photovoltaic module (10), and the discharging mechanism (220) discharges the photovoltaic module (10) for unloading.

2. The photovoltaic module conveying device (200) according to claim 1, wherein the feeding mechanism (210) includes a feeding conveying component (211), two feeding edge limiting components (212), and a feeding detection component (214); the feeding conveying component (211) is fixed on the middle of the rear side of the external machine platform, and the two feeding edge limiting components (212) are respectively fixed on the two sides of the rear side of the external machine platform, wherein the feeding conveying component (211) and the two feeding edge limiting components (212) constitute a feeding channel (213). The feeding detection component (214) is fixed on the middle part of the external machine and located at the front end of the feeding channel (213). The feeding conveying component (211) feeds the photovoltaic module (10). The two feeding edge limiting components (212) limit the photovoltaic module (10) in the feeding channel (213). After the feeding detection component (214) detects the photovoltaic module (10), the two positioning mechanisms (230) limit the photovoltaic module (10) in the detection position (800) for detection.

3. The photovoltaic module conveying device (200) according to claim 2, wherein the feeding conveying assembly (211) includes a feeding conveying bracket (2111), a feeding conveying driver (2112), a feeding conveying drive shaft (2113), and three feeding conveying drive belt groups (2114); the conveying bracket (2111) is fixed on the rear side of the external machine base, the feeding conveying driver (2112) is fixed on one side of the conveying bracket (2111), the feeding conveying drive shaft (2113) is horizontally fixed on the output end of the feeding conveying driver (2112), and the three feeding conveying drive belt groups (2114) are horizontally connected to the feeding conveying drive shaft (2113) front and rear, and the feeding conveying driver (2112) is used to drive the feeding conveying drive shaft (2113) to carry the three feeding conveying drive belt groups (2114) to move in the same direction to convey the photovoltaic module (10).

4. The photovoltaic module conveying device (200) according to claim 2, wherein the feeding limiting module (212) includes a feeding limiting base plate (2121), a feeding limiting slide (2122), a feeding limiting driver (2123), a feeding limiting carriage (2124), and a plurality of feeding limiting rollers (2125); the feeding limiting base plate (2121) is fixed on both sides of the external machine platform, and the slide rails of the feeding limiting driver (2123) and the feeding limiting slide (2122) are horizontally fixed on the feeding limiting base plate (2121) to the left and right, and the feeding limiting module (2122) is... The edge-limiting slide (2124) is fixed on the output end of the feed edge-limiting driver (2123) and the slider of the feed edge-limiting slide group (2122). A plurality of feed edge-limiting rollers (2125) are fixed at intervals on the feed edge-limiting slide (2124). The feed edge-limiting driver (2123) is used to drive the feed edge-limiting slide (2124) to move left and right along the slide rail of the feed edge-limiting slide group (2122) with the plurality of feed edge-limiting rollers (2125) to abut against the side of the photovoltaic module (10) and position the photovoltaic module (10) left and right.

5. The photovoltaic module conveying device (200) according to claim 3, wherein the feeding detection component (214) includes a detection bracket (2141) and a detection limit switch (2142), the detection bracket (2141) is fixed on the middle part of the back of the external machine, the detection limit switch (2142) is vertically fixed on the detection bracket (2141), the detection limit switch (2142) includes a detection roller (21421), the detection roller (21421) can be vertically raised and lowered; when the photovoltaic module (10) is conveyed and presses down the detection roller (21421), the detection limit switch (2142) controls the feeding conveying driver (2112) to be de-energized and stop rotating, and at the same time controls the two positioning mechanisms (230) to rise and stop the photovoltaic module (10) so that the photovoltaic module (10) stops at the detection position (800) for detection.

6. The photovoltaic module conveying device (200) according to claim 2, wherein the delivery mechanism (220) includes a delivery conveying component (221), two delivery limiting components (222), a delivery channel (223), and a delivery detection component (224), wherein the delivery conveying component (221) is fixed on the front center of the external machine, the two delivery limiting components (222) are respectively fixed on the two sides of the front of the external machine, the delivery conveying component (221) and the two delivery limiting components (222) constitute the delivery channel (223), and the delivery detection component (224) 214) Fixed on the middle part of the external machine, located at the rear end of the delivery channel (223), after the photovoltaic module (10) is detected, the two positioning mechanisms (230) release the photovoltaic module (10), the delivery conveying component (211) continues to deliver the photovoltaic module (10), after the delivery detection component (224) detects the photovoltaic module (10), the delivery conveying component (221) delivers the photovoltaic module (10) for feeding, and at the same time the two delivery limiting components (222) limit the photovoltaic module (10) within the delivery channel (223).

7. The photovoltaic module conveying device (200) according to claim 6, wherein the positioning mechanism (230) comprises a positioning bracket upright plate (231), a positioning roller driver mounting plate (232), a positioning roller driver (233), a positioning roller bracket (234), and a positioning roller (235); the positioning bracket upright plate (231) is vertically fixed on both sides of the middle of the external machine platform, the positioning roller driver mounting plate (232) is fixed on the positioning bracket upright plate (231), the positioning roller driver (233) is vertically fixed below the positioning roller driver mounting plate (232), the positioning roller bracket (234) is vertically fixed on the output end of the positioning roller driver, and the positioning roller (235) is horizontally fixed on the positioning roller bracket (234); the positioning roller driver (233) is used to drive the positioning roller bracket (234) to move up and down with the positioning roller (235) to stop or release the photovoltaic module (10).

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