Photovoltaic module EL detection equipment

Abstract

The utility model relates to the technical field of EL detection equipment, in particular to photovoltaic module EL detection equipment, which adopts the technical scheme that the photovoltaic module EL detection equipment comprises a working table, a first sliding table is mounted on one side of the top end of the working table, a tray for lifting a photovoltaic module is arranged at the top end of the first sliding table, and the tray is in driving connection with the first sliding table; a second sliding table is arranged above the tray, the second sliding table is connected with a connecting plate in a sliding mode, and an EL module is installed above the connecting plate. According to the utility model, the photovoltaic module is conveyed and transferred between the detection areas of the workbench through the automatic conveying line, the tray is arranged to bear the photovoltaic module, and the EL module can fully cover the photovoltaic module and carry out imaging detection in different areas under the driving action of the first sliding table and the second sliding table, so that the detection efficiency is improved. The EL effect of the photovoltaic module is accurately detected, the detection efficiency is improved, the operation difficulty is reduced, in addition, the tray can be suitable for bearing various types of photovoltaic modules, and the EL effect detection device has wider applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of EL detection equipment, in particular to a photovoltaic component EL detection equipment. Background Art

[0002] Solar energy is an inexhaustible clean and renewable energy source for mankind. Photovoltaic solar energy is the fastest growing and most dynamic research direction in recent years. The production process of solar cell modules requires EL testing, namely electroluminescence (Electro Luminescence), which can also be called electronic luminescence testing. By utilizing the electroluminescence principle of crystalline silicon and using a high-resolution EL camera to capture near-infrared images of crystalline silicon, the acquired imaging images are analyzed by image software to detect whether the solar cell modules have hidden cracks, fragments, cold solder joints, broken grids, and abnormalities in single-chip cells with different conversion efficiencies.

[0003] The existing technology still has the following defects during use: the existing EL detection equipment generally has the problems of complex operation, the photovoltaic components need to be positioned and fixed during detection, cumbersome operation, poor imaging effect, high repetitive labor intensity, etc.

[0004] In view of this, we propose a photovoltaic module EL detection device to solve the existing problems. Utility Model Content

[0005] The purpose of the utility model is to provide a photovoltaic module EL detection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic module EL detection device, comprising a workbench, a first slide is installed on one side of the top of the workbench, a tray for holding the photovoltaic module is arranged on the top of the first slide and the tray is driven and connected to the first slide, a second slide is arranged above the tray, the second slide is slidably connected to a connecting plate, an EL module is installed above the connecting plate, the EL module performs a visual scan on the photovoltaic module held by the tray through the driving action of the first slide and the second slide, the workbench is installed on a bracket, and a channel for conveying the tray is arranged between the workbench and the bracket.

[0007] Preferably, the EL module includes a light source and an imaging lens, the incident direction of the light source is perpendicular to the tray surface, and the imaging lens is used for imaging and detecting the photovoltaic module with auxiliary illumination of the light source.

[0008] Preferably, the EL modules are provided in a plurality of groups, and the plurality of groups of EL modules are equidistantly mounted on one side of the top end of the connecting plate.

[0009] Preferably, first guide rods are symmetrically arranged on both sides of the first slide, and the two first guide rods are installed on the workbench through bearing seats. A slider is slidably connected to the first guide rods, and the top of the slider is fixedly connected to the tray.

[0010] Preferably, support plates are provided on both sides above the tray, and the support plates are parallel to the setting direction of the second slide. Second guide rods are provided on both sides of the second slide. The second guide rods on both sides are fixedly installed on the end surfaces of the support plates on both sides through bearing seats. Slide blocks are slidably sleeved on the second guide rods on both sides, and the second guide rods on both sides are fixedly connected to the connecting plate through the slide blocks.

[0011] Preferably, the channel includes a feed port for connecting to a feed conveyor line, and a discharge port for connecting to a feed conveyor line is arranged adjacent to the feed port, and virtual extension lines between the feed port and the discharge port are perpendicular to each other.

[0012] Preferably, a shield is installed on the outside of the workbench, the shield is arranged above the workbench, and is fixed on the bracket by bolts.

[0013] Preferably, the mask is made of opaque material.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model transports and transfers photovoltaic components through an automated conveyor line between the workbench detection areas, sets up a pallet to carry the photovoltaic components, and through the driving action of the first slide and the second slide, enables the EL module to fully cover the photovoltaic components and perform imaging detection in different areas, thereby achieving accurate detection of the EL effect of the photovoltaic components, improving detection efficiency, and reducing operating difficulty. In addition, the pallet can be adapted to carry various types of photovoltaic components and has a wider applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 3 It is a partial top view of the structure of the utility model.

[0018] In the figure: 1. workbench; 2. first slide; 3. first guide rod; 4. tray; 5. support plate; 6. second slide; 7. second guide rod; 8. EL module; 9. connecting plate; 10. discharge port; 11. bracket; 12. feed port; 13. shield. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Embodiment 1

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model proposes a photovoltaic module EL detection device, including a workbench 1, a first slide 2 is installed on one side of the top of the workbench 1, a tray 4 for holding the photovoltaic module is arranged on the top of the first slide 2, and the tray 4 is drivingly connected to the first slide 2, a second slide 6 is arranged above the tray 4, the second slide 6 is slidably connected to a connecting plate 9, an EL module 8 is installed above the connecting plate 9, the EL module 8 performs a visual scan on the photovoltaic module held by the tray 4 through the driving action of the first slide 2 and the second slide 6, the workbench 1 is installed on a bracket 11, and a channel for conveying the tray 4 is arranged between the workbench 1 and the bracket 11.

[0022] In the embodiment, the EL module 8 includes a light source and an imaging lens. The incident direction of the light source is perpendicular to the surface of the tray 4 and is used to provide light source. The imaging lens is used to perform imaging detection on the photovoltaic module with auxiliary illumination of the light source.

[0023] In the embodiment, multiple groups of EL modules 8 are provided, and the multiple groups of EL modules 8 are equidistantly mounted on one side of the top of the connecting plate 9. The detection is performed simultaneously by multiple groups of EL components, so that the detection efficiency is higher.

[0024] In the embodiment, first guide rods 3 are symmetrically arranged on both sides of the first slide 2, and the two first guide rods 3 are installed on the workbench 1 through bearing seats. A slider is slidably connected to the first guide rods 3, and the top of the slider is fixedly connected to the tray 4, which is used to assist in guiding the tray 4 to move under the drive of the first slide 2.

[0025] In the embodiment, support plates 5 are provided on both sides above the tray 4, and the support plates 5 are parallel to the setting direction of the second slide 6. Second guide rods 7 are provided on both sides of the second slide 6. The second guide rods 7 on both sides are fixedly installed on the end faces of the support plates 5 on both sides through bearing seats. Slide blocks are slidably sleeved on the second guide rods 7 on both sides. The second guide rods 7 on both sides are fixedly connected to the connecting plate 9 through the slide blocks, and are used to play a guiding role when the second slide 6 drives the connecting plate 9 to move.

[0026] In an embodiment, the channel includes a feed port 12 for connecting to a feed conveyor line, and an outlet port 10 for connecting to a feed conveyor line is arranged adjacent to the feed port 12. The virtual extension lines between the feed port 12 and the outlet port 10 are perpendicular to each other for convenient transportation of photovoltaic modules.

[0027] In the embodiment, a shield 13 is installed on the outside of the workbench 1. The shield 13 is arranged above the workbench 1 and is fixed to the bracket 11 by bolts to block light and prevent external light from interfering with the operation of the EL module 8.

[0028] In the embodiment, the mask 13 is made of an opaque material to prevent the light source of the EL module 8 from overflowing when the light source is working, resulting in insufficient brightness during imaging and affecting the detection result.

[0029] The working principle of the photovoltaic module EL detection equipment based on the first embodiment is: when the utility model is used, the photovoltaic module is fed into the tray 4 from the feed port 12 through the conveyor line, and the EL module 8 is moved to the top of the photovoltaic module by driving the second slide 6. During EL detection, the light source is irradiated on the surface of the photovoltaic module, and the imaging lens takes a picture of the irradiated area to generate a near-infrared image of crystalline silicon. Through the driving action of the first slide 2 and the second slide 6, the photovoltaic module is irradiated and photographed in different areas. After the photo is taken, the photovoltaic module is taken out from the discharge port 10 through the feeding conveyor line. By analyzing the image obtained by the EL module 8, it is detected whether the photovoltaic module has hidden cracks, abnormal fragments and the like. If any, it is a defective product.

[0030] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A photovoltaic module EL detection device, comprising a workbench (1), characterized in that: A first slide (2) is installed on one side of the top of the workbench (1); a tray (4) for holding photovoltaic components is arranged on the top of the first slide (2), and the tray (4) is connected to the first slide (2) in a driving manner; a second slide (6) is arranged above the tray (4); the second slide (6) is slidably connected to a connecting plate (9); an EL module (8) is installed above the connecting plate (9); the EL module (8) performs a visual scan on the photovoltaic components held by the tray (4) through the driving action of the first slide (2) and the second slide (6); the workbench (1) is installed on a bracket (11); and a channel for conveying the tray (4) is arranged between the workbench (1) and the bracket (11).

2. A photovoltaic module EL detection device according to claim 1, characterized in that: The EL module (8) comprises a light source and an imaging lens, the incident direction of the light source is perpendicular to the surface of the tray (4), and the imaging lens is used for imaging and detecting the photovoltaic module under the auxiliary illumination of the light source.

3. A photovoltaic module EL detection device according to claim 1 or 2, characterized in that: The EL modules (8) are arranged in a plurality of groups, and the plurality of groups of EL modules (8) are installed at equal distances on one side of the top end of the connecting plate (9).

4. The photovoltaic module EL detection device according to claim 1, characterized in that: First guide rods (3) are symmetrically arranged on both sides of the first slide (2); the two first guide rods (3) are mounted on the workbench (1) via bearing seats; a slider is slidably connected to the first guide rods (3); and the top of the slider is fixedly connected to the tray (4).

5. The photovoltaic module EL detection device according to claim 1, characterized in that: Support plates (5) are arranged on both sides above the tray (4), and the support plates (5) are arranged in parallel with the second slide (6). Second guide rods (7) are arranged on both sides of the second slide (6), and the second guide rods (7) on both sides are respectively fixedly mounted on the end surfaces of the support plates (5) on both sides through bearing seats, and sliders are slidably sleeved on the second guide rods (7) on both sides, and the second guide rods (7) on both sides are fixedly connected to the connecting plate (9) through the sliders.

6. The photovoltaic module EL detection device according to claim 1, characterized in that: The channel comprises a feed port (12) for connecting to a feed conveyor line, and a discharge port (10) for connecting to a feed conveyor line is arranged adjacent to the feed port (12), and a virtual extension line between the feed port (12) and the discharge port (10) is perpendicular to each other.

7. The photovoltaic module EL detection device according to claim 1, characterized in that: A shield (13) is installed on the outside of the workbench (1); the shield (13) is arranged above the workbench (1) and is fixed on the bracket (11) by means of bolts.

8. The photovoltaic module EL detection device according to claim 7, characterized in that: The mask (13) is made of a light-proof material.

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