Solar panel EL detection, handling and power-on mechanism

Abstract

This utility model provides a solar panel EL detection, handling, and energizing mechanism for handling solar panels and energizing them for EL detection. It includes a handling drive assembly, a handling suction assembly, and two energizing assemblies. The handling drive assembly is longitudinally fixed to an external machine base, the handling suction assembly is laterally fixed to the handling drive assembly, and the two energizing assemblies are respectively fixed to both ends of the handling suction assembly. The handling drive assembly drives the handling suction assembly to handle the solar panel, and the two energizing assemblies energize the solar panel for EL detection.

Description

Technical Field

[0001] This utility model belongs to the technical field of solar panel manufacturing equipment, and in particular relates to a solar panel EL detection, handling and power-on mechanism. Background Technology

[0002] See Figure 1 The solar panel 20 is formed by connecting and welding the battery cells 21 in series via electrode strips 211. After welding, it needs to be inspected by EL to remove defective products with hidden cracks, fragments, black cores and short circuits.

[0003] EL (electroluminescence) inspection utilizes the EL principle to detect defects in the solar panel 20. By applying a forward bias voltage (DC 10V–50V) to the solar panel 20, a large number of non-equilibrium carriers are injected into the panel. These non-equilibrium carriers, injected from the diffusion region, continuously recombine with the charge carriers in the solar cell, emitting photons and emitting light. EL (electroluminescence) is the opposite of PV (photovoltaic generation). An EL infrared scanning camera captures these photons, obtaining an EL image. The brightness of the EL image is proportional to the minority carrier diffusion length and current density of the solar cell 21. Defective areas in the solar cell 21 have lower minority carrier diffusion lengths, resulting in a darker image. Therefore, EL images can effectively detect defects in the solar panel 20 such as microcracks, fragments, black cores, and short circuits. EL inspection is used for online inspection on the solar panel 20 production line, fault diagnosis during operation, and performance monitoring.

[0004] Solar panels are relatively soft and easily deformed. Before encapsulation, their overall rigidity is poor, making them prone to image distortion during photography. The large size of the solar panels also places high demands on the camera's field of view and light source, creating a demanding overall photographic environment that can easily lead to image glare. Image distortion and image glare affect the consistency and accuracy of test results.

[0005] Existing technology uses a field-array camera to take pictures of the front and back of the solar panel 11. Due to the limited field of view of the field-array camera, for large solar panels, multiple pictures are required to capture the entire solar panel. The partial pictures taken from multiple pictures need to be stitched together. Since the positioning requirements for multiple pictures are high, the intelligence requirements for the stitching algorithm are also high. Often, some uncontrollable variables in the intermediate links lead to stitching errors, resulting in distortion of the component image.

[0006] To overcome the impact of image distortion, image spotting, and image falsification on inspection results, we developed an EL inspection device for solar panels. This device uses two fixed EL infrared scanning cameras to scan the long domain of the solar panel 20 to obtain a linear image. Through image recognition, it detects defects such as hidden cracks, fragments, black cores, and short circuits in the solar panel 20 and rejects defective products.

[0007] To this end, a solar panel EL detection, handling, and power-on mechanism was developed to handle the solar panel 20 and power it for EL detection. Utility Model Content

[0008] The purpose of this utility model is to provide a solar panel EL detection, handling and energizing mechanism for handling solar panels and energizing them for EL detection, including a handling drive component, a handling and suction component and two energizing components;

[0009] The transport drive assembly is fixed longitudinally to the external machine base, the transport suction assembly is fixed laterally to the transport drive assembly, and two energizing components are fixed at both ends of the transport suction assembly. The transport drive assembly is used to drive the transport suction assembly to transport the solar panel, and the two energizing components are used to power the solar panel for EL detection.

[0010] Furthermore, the transport drive assembly includes a transport driver bracket, two transport slides, a transport driver, a transport drive drive wheel, a transport drive driven wheel support, a transport drive driven wheel, a transport transmission belt, a transport transmission belt lock, and a transport slide plate;

[0011] The transport driver bracket is fixed to the external machine base. The slide rails of the two transport slide groups are longitudinally fixed to the external machine base, located on both sides of the transport driver bracket. The transport driver is fixed to the transport driver bracket. The transport drive drive wheel is fixed to the output end of the transport driver. The transport drive driven wheel support is fixed to the external machine base, separated from the transport driver bracket, located between the slide rails of the two transport slide groups. The transport drive driven wheel is fixed to the transport drive driven wheel support. The transport transmission belt is sleeved on the transport drive drive drive wheel and the transport drive driven wheel. The transport transmission belt buckle is fixed under the lower transport transmission belt. The middle part of the transport slide plate is fixed under the transport transmission belt buckle. The two ends of the transport slide plate are respectively fixed to the two sliders of the left and right transport slide groups. The transport driver is used to drive the transport transmission belt to rotate and move the transport slide plate along the slide rails of the transport slide group to transport the solar panel for EL detection.

[0012] Furthermore, the transport and suction assembly includes a transport and suction lifting drive, two transport and suction lifting sleeves, two transport and suction lifting rods, a transport and suction crossbeam, and multiple transport and suction nozzle units.

[0013] The transport and suction lifting driver is fixed under the transport slide plate. Two transport and suction lifting sleeves are fixed to the left and right ends of the transport slide plate, respectively. Two transport and suction lifting rods are respectively fitted inside the two transport and suction lifting sleeves. The transport and suction crossbeam is fixed laterally under the output end of the transport and suction lifting driver and under the two transport and suction lifting rods. Multiple transport and suction nozzle units are fixed left and right at intervals under the transport and suction crossbeam. The transport and suction nozzle unit includes a transport and suction nozzle longitudinal beam and two transport and suction nozzles. The transport and suction nozzle longitudinal beam is fixed longitudinally under the transport and suction crossbeam, and the two transport and suction nozzles are fixed to the front and rear ends of the transport and suction nozzle longitudinal beam, respectively. The transport and suction lifting driver is used to drive the transport and suction crossbeam to descend with multiple transport and suction nozzles to collect solar panels for transport.

[0014] Furthermore, the power-on assembly includes a power-on driver bracket, a power-on lifting driver, a power-on probe bracket, and multiple power-on probe units; the power-on driver bracket is fixed on the leftmost or rightmost end of the transport and pick-up beam, the power-on lifting driver is fixed downwards on the power-on driver bracket, the power-on probe bracket is fixed below the output end of the power-on lifting driver, and multiple power-on probe units are arranged on the power-on probe bracket.

[0015] The energized probe unit includes an energized probe slide bar, an energized probe buffer spring, and an energized probe;

[0016] The energized probe slide rod is slidably mounted under the energized probe bracket, the energized probe is fixed under the energized probe slide rod, and the energized probe buffer spring is sleeved outside the energized probe slide rod and compressed between the energized probe and the energized probe bracket.

[0017] The energized lifting actuator is used to drive the energized probe bracket to descend with multiple energized probes after the transport and suction beam is lowered by the transport and suction lifting actuator. This allows the probes to be elastically pressed against the electrode strips on the solar panel cells to provide power for EL detection.

[0018] The beneficial effects of a solar panel EL detection, handling, and energizing mechanism are as follows:

[0019] The transport drive assembly is fixed longitudinally on the external machine base, the transport suction assembly is fixed laterally on the transport drive assembly, and two energized components are fixed at both ends of the transport suction assembly. The transport drive assembly can drive the transport suction assembly to transport the solar panel, and the two energized components can supply power to the solar panel for EL detection. Attached Figure Description

[0020] Figure 1 Schematic diagram of a solar panel structure;

[0021] Figure 2 Schematic diagram of the solar panel EL detection, handling, and power-on mechanism;

[0022] Figure 3 Structure diagram of the powered component.

[0023] Explanation of reference numerals in the attached figures:

[0024] 20. Solar panel; 21. Solar cell; 211. Electrode strip;

[0025] 300. Solar panel EL detection, handling, and power-on mechanism;

[0026] 310. Transport drive assembly; 311. Transport drive bracket; 312. Transport slide block; 313. Transport drive; 314. Transport drive drive pulley; 315. Transport drive driven pulley support; 316. Transport drive driven pulley; 317. Transport transmission belt; 318. Transport transmission belt lock; 319. Transport slide plate;

[0027] 320. Transport and suction assembly; 321. Transport and suction lifting drive; 322. Transport and suction lifting slide sleeve; 323. Transport and suction lifting slide bar; 324. Transport and suction crossbeam; 325. Transport nozzle unit; 3251. Transport nozzle longitudinal beam; 3252. Transport nozzle;

[0028] 330. Power-on assembly; 331. Power-on driver bracket; 332. Power-on lifting driver; 333. Power-on probe bracket; 334. Power-on probe unit; 3341. Power-on probe slide bar; 3342. Power-on probe buffer spring; 3343. Power-on probe. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] See Figure 2 This embodiment provides a solar panel EL detection, handling and power supply mechanism 300 for handling solar panel 20 and powering solar panel 20 for EL detection, including a handling drive component 310, a handling and suction component 320 and two power supply components 330;

[0032] The transport drive assembly 310 is fixed longitudinally on the external machine base, the transport suction assembly 320 is fixed laterally on the transport drive assembly 310, and two energizing assemblies 330 are respectively fixed on both ends of the transport suction assembly 320. The transport drive assembly 310 is used to drive the transport suction assembly 320 to transport the solar panel 20, and the two energizing assemblies 330 are used to energize the solar panel 20 for EL detection.

[0033] Further, see Figure 2 The transport drive assembly 310 includes a transport driver bracket 311, two transport slides 312, a transport driver 313, a transport drive drive wheel 314, a transport drive driven wheel support 315, a transport drive driven wheel 316, a transport transmission belt 317, a transport transmission belt buckle 318, and a transport slide plate 319.

[0034] The transport driver bracket 311 is fixed to the external machine base. The slide rails of the two transport slide groups 312 are longitudinally fixed to the external machine base, located on both sides of the transport driver bracket 311. The transport driver 313 is fixed to the transport driver bracket 311. The transport drive drive wheel 314 is fixed to the output end of the transport driver 313. The transport drive driven wheel support 315 is fixed to the external machine base, spaced away from the transport driver bracket 311, and located between the slide rails of the two transport slide groups 312. The transport drive driven wheel 316 is fixed to the transport drive driven wheel support 315. On 15, the transport belt 317 is sleeved on the outside of the transport drive drive wheel 314 and the transport drive driven wheel 316. The transport belt buckle 318 is fixed under the lower transport belt 317. The middle part of the transport slide plate 319 is fixed under the transport belt buckle 318. The two ends of the transport slide plate 319 are respectively fixed on the two sliders of the left and right transport slide groups 312. The transport driver 313 is used to drive the transport belt 317 to rotate and move the transport slide plate 319 along the slide rail of the transport slide group 312 to transport the solar panel 20 for EL detection.

[0035] Further, see Figure 2 The conveying and suction assembly 320 includes a conveying and suction lifting drive 321, two conveying and suction lifting sleeves 322, two conveying and suction lifting rods 323, a conveying and suction crossbeam 324, and multiple conveying and suction nozzle units 325.

[0036] The transport and suction lifting driver 321 is fixed under the transport slide plate 319. Two transport and suction lifting sleeves 322 are fixed on the left and right ends of the transport slide plate 319, respectively. Two transport and suction lifting rods 323 are respectively sleeved in the two transport and suction lifting sleeves 322. The transport and suction crossbeam 324 is horizontally fixed under the output end of the transport and suction lifting driver 321 and under the two transport and suction lifting rods 323. Multiple transport suction nozzle units 325 are fixed at intervals on the left and right under the transport and suction crossbeam 324. Each transport suction nozzle unit 325 includes a transport suction nozzle longitudinal beam 3251 and two transport suction nozzles 3252. The transport suction nozzle longitudinal beam 3251 is vertically fixed under the transport and suction crossbeam 324, and the two transport suction nozzles 3252 are fixed on the front and rear ends of the transport suction nozzle longitudinal beam 3251, respectively. The transport and suction lifting driver 321 is used to drive the transport and suction crossbeam 324 to descend with multiple transport suction nozzles 3252 to collect solar panels 20 for transport.

[0037] Furthermore, see Figure 3The power-on assembly 330 includes a power-on driver bracket 331, a power-on lifting driver 332, a power-on probe bracket 333, and multiple power-on probe units 334. The power-on driver bracket 331 is fixed to the leftmost or rightmost end of the transport and suction crossbeam 324. The power-on lifting driver 332 is fixed downwards to the power-on driver bracket 331. The power-on probe bracket 333 is fixed below the output end of the power-on lifting driver 332. Multiple power-on probe units 334 are arranged on the power-on probe bracket 333.

[0038] The energized probe unit 334 includes an energized probe slide bar 3341, an energized probe buffer spring 3342, and an energized probe 3343;

[0039] The power-on probe slide rod 3341 is slidably mounted under the power-on probe bracket 333, the power-on probe 3343 is fixed under the power-on probe slide rod 3341, and the power-on probe buffer spring 3342 is sleeved on the outside of the power-on probe slide rod 3341 and compressed between the power-on probe 3343 and the power-on probe bracket 333.

[0040] The power-on lifting driver 332 is used to drive the power-on probe bracket 333 to descend with multiple power-on probes 3343 after the transport and suction lifting driver 321 drives the transport and suction beam 324 to descend, so as to elastically press the electrode strip 211 on the solar cell 21 of the solar panel 20 to provide power for EL detection.

[0041] The above are merely preferred embodiments of the present utility model and are 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 solar panel EL inspection handling and energizing mechanism (300) for handling a solar panel (20) and energizing the solar panel (20) for EL inspection, characterized by, It includes a conveying drive assembly (310), a conveying and suction assembly (320), and two energized assemblies (330). The transport drive assembly (310) is longitudinally fixed on the external machine base, the transport suction assembly (320) is laterally fixed on the transport drive assembly (310), and the two power supply assemblies (330) are respectively fixed on both ends of the transport suction assembly (320); the transport drive assembly (310) is used to drive the transport suction assembly (320) to transport the solar panel (20), and the two power supply assemblies (330) are used to power the solar panel (20) for EL detection.

2. The solar panel EL detection handling and energizing mechanism (300) according to claim 1, characterized in that, The transport drive assembly (310) includes a transport driver bracket (311), two transport slides (312), a transport driver (313), a transport drive drive wheel (314), a transport drive driven wheel support (315), a transport drive driven wheel (316), a transport transmission belt (317), a transport transmission belt buckle (318), and a transport slide plate (319). The transport driver bracket (311) is fixed to the external machine base. The slide rails of the two transport slide groups (312) are longitudinally fixed to the external machine base, located on both sides of the transport driver bracket (311). The transport driver (313) is fixed to the transport driver bracket (311). The transport drive drive wheel (314) is fixed to the output end of the transport driver (313). The transport drive driven wheel support (315) is fixed to the external machine base, far away from the transport driver bracket (311), located between the slide rails of the two transport slide groups (312). The transport drive driven wheel (316) is fixed to the transport drive driven wheel support (315). The transport belt (317) is sleeved on the outside of the transport drive drive wheel (314) and the transport drive driven wheel (316). The transport belt buckle (318) is fixed under the lower transport belt (317). The middle part of the transport slide plate (319) is fixed under the transport belt buckle (318). The two ends of the transport slide plate (319) are respectively fixed on the two sliders of the left and right transport slide groups (312). The transport driver (313) is used to drive the transport belt (317) to rotate and move the transport slide plate (319) along the slide rail of the transport slide group (312) to transport the solar panel (20) for EL detection.

3. The solar panel EL detection handling and energizing mechanism (300) of claim 2, characterized by, The transport and suction assembly (320) includes a transport and suction lifting driver (321), two transport and suction lifting sleeves (322), two transport and suction lifting rods (323), a transport and suction crossbeam (324), and multiple transport and suction nozzle units (325). The transport and suction lifting driver (321) is fixed under the transport slide plate (319). Two transport and suction lifting sleeves (322) are fixed on the left and right ends of the transport slide plate (319) respectively. Two transport and suction lifting rods (323) are respectively sleeved inside the two transport and suction lifting sleeves (322). The transport and suction beam (324) is horizontally fixed under the output end of the transport and suction lifting driver (321) and under the two transport and suction lifting rods (323). Multiple transport suction nozzle units (325) are fixed on the transport and suction slide plate at intervals. Below the crossbeam (324), the transport suction unit (325) includes a transport suction longitudinal beam (3251) and two transport suction nozzles (3252); the transport suction longitudinal beam (3251) is longitudinally fixed below the transport suction crossbeam (324), and the two transport suction nozzles (3252) are respectively fixed at the front and rear ends of the transport suction longitudinal beam (3251); the transport suction lifting driver (321) is used to drive the transport suction crossbeam (324) to descend with multiple transport suction nozzles (3252) to pick up the solar panel (20) for transporting the solar panel (20).

4. The solar panel EL detection handling and energizing mechanism (300) of claim 3, characterized by, The power-on assembly (330) includes a power-on driver bracket (331), a power-on lifting driver (332), a power-on probe bracket (333), and multiple power-on probe units (334); the power-on driver bracket (331) is fixed to the leftmost or rightmost end of the conveying and suction beam (324), the power-on lifting driver (332) is fixed downwards to the power-on driver bracket (331), the power-on probe bracket (333) is fixed below the output end of the power-on lifting driver (332), and the multiple power-on probe units (334) are arranged on the power-on probe bracket (333); The power-on probe unit (334) includes a power-on probe slide bar (3341), a power-on probe buffer spring (3342), and a power-on probe (3343). The energized probe slide rod (3341) is slidably mounted under the energized probe bracket (333), the energized probe (3343) is fixed under the energized probe slide rod (3341), and the energized probe buffer spring (3342) is sleeved outside the energized probe slide rod (3341) and compressed between the energized probe (3343) and the energized probe bracket (333); The power-on lifting driver (332) is used to drive the power-on probe bracket (333) to descend with multiple power-on probes (3343) after the transport and suction lifting driver (321) drives the transport and suction beam (324) to descend, so as to elastically press the electrode strip (211) on the cell (21) of the solar panel (20) to provide power for EL detection.

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