Battery piece integration detection device

Abstract

The utility model relates to the technical field of solar cell processing, in particular to a cell integration detection device. The device comprises a feeding mechanism, a separation mechanism, a material conveying line and a detection mechanism, the feeding mechanism is used for conveying a material storage box, and materials and isolation paper which are alternately stacked and arranged are placed in the material storage box; the separating mechanism is used for separating the materials and the isolation paper in the material storage box and placing the materials on the material conveying line; the material conveying line is used for conveying materials to the detection mechanism; the detection mechanism is used for detecting the performance and appearance of the materials. The battery piece integration detection device provided by the utility model can automatically carry out the steps of material and isolation paper separation, diaphragm conveying, diaphragm detection and the like, the automation degree is relatively high, the manual workload is reduced, and the detection precision and the detection efficiency of the diaphragm are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cell processing, in particular to a cell chip integrated detection device. Background Art

[0002] Currently, the photovoltaic industry lacks standardized testing methods and procedures for semi-finished post-film cell inspections. Conventional testing methods rely on manual testing of cells using various testers. This manual testing method lacks systematic monitoring, resulting in high costs, low labor efficiency, poor timeliness, and low accuracy and efficiency.

[0003] Although there are some automatic battery cell inspection devices on the market, the existing devices still rely on manual assistance and cannot achieve fully automated production, resulting in the battery cell inspection accuracy and inspection efficiency still need to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a battery cell integrated detection device to solve the technical problems of low detection accuracy and detection efficiency of battery cells in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A battery cell integrated detection device includes a feeding mechanism, a separation mechanism, a material conveying line, and a detection mechanism, wherein:

[0007] The feeding mechanism is used to convey the material storage box, in which materials and release paper arranged alternately in layers are placed;

[0008] The separation mechanism is used to separate the material and the release paper in the storage box and place the material on the material conveying line;

[0009] The material conveying line is used to convey the material to the detection mechanism;

[0010] The detection mechanism is used to perform performance and appearance detection on the material.

[0011] Furthermore, the separation mechanism includes a first transfer assembly, and the first transfer assembly includes:

[0012] A first suction cup structure, used for sucking the material or the release paper;

[0013] The first driving structure is used to drive the first suction cup structure to move in the space.

[0014] Furthermore, the detection mechanism includes a square resistance detection module and / or a spectroscopic ellipsometer and / or a laser ellipsometer and / or a PL detection module and / or an AOI detection module.

[0015] Furthermore, the square resistance detection module, the spectroscopic ellipsometer, the laser ellipsometer, the PL detection module and the AOI detection module are distributed in sequence along the conveying direction of the material conveying line.

[0016] Furthermore, the square resistance detection module, the spectroscopic ellipsometer and the laser ellipsometer are arranged on one side of the material conveying line;

[0017] The PL detection module and the AOI detection module are arranged above and / or below the material conveying line.

[0018] Furthermore, it also includes a second transfer mechanism, which is set above the material conveying line and is used to realize the transfer of the material between the material conveying line and the detection mechanism.

[0019] Furthermore, the second transfer mechanism includes:

[0020] a second suction cup assembly, for sucking the material;

[0021] The second driving assembly is used to drive the second suction cup assembly to move in the space.

[0022] Furthermore, it also includes a sorting mechanism arranged downstream of the detection mechanism, and the sorting mechanism includes several sorting conveying lines, and the material on the material conveying line can be selectively conveyed to one of the sorting conveying lines.

[0023] Furthermore, the material conveying lines are provided in two, and the two material conveying lines are distributed in parallel;

[0024] The number of the feeding mechanisms is two and they are respectively located at the ends of the two material conveying lines.

[0025] Furthermore, it also includes a piece-removing mechanism, which is used to remove unqualified materials on the material conveying line.

[0026] Beneficial effects of the utility model:

[0027] The battery cell integrated detection device provided by the present invention includes a feeding mechanism, a separation mechanism, a material conveying line, and a detection mechanism, wherein: the feeding mechanism is used to convey a storage box containing materials and release paper arranged in alternating layers; the separation mechanism is used to separate the materials and release paper in the storage box and place the materials on the material conveying line; the material conveying line is used to convey the materials to the detection mechanism; and the detection mechanism is used to perform performance and appearance inspections on the materials. The battery cell integrated detection device provided by this application can automatically perform steps such as separating materials and release paper, conveying membranes, and detecting membranes. It has a high degree of automation, reduces manual workload, and improves the detection accuracy and efficiency of membranes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 A top view of a battery cell integrated detection device provided by an embodiment of the present utility model;

[0030] Figure 2 A three-dimensional schematic diagram of a first transfer assembly provided in an embodiment of the present utility model;

[0031] Figure 3 A schematic diagram of the working principle of the battery cell integrated detection device provided in an embodiment of the utility model;

[0032] Figure 4 The detection method flow of the battery cell integrated detection device provided by the embodiment of the utility model is as follows Figure 1 ;

[0033] Figure 5 The detection method flow of the battery cell integrated detection device provided by the embodiment of the utility model is as follows Figure 2 .

[0034] icon:

[0035] 1-Feeding mechanism;

[0036] 2-separation mechanism; 21-first transfer assembly; 211-first suction cup structure; 212-first drive structure; 22-waste paper recycling box;

[0037] 3-Material conveying line;

[0038] 4-Detection mechanism; 41-Square resistance detection module; 42-Spectral ellipsometer; 43-Laser ellipsometer; 44-PL detection module; 45-AOI detection module;

[0039] 5- Second transfer mechanism;

[0040] 6-sorting mechanism; 61-sorting conveyor line;

[0041] 7-film picking mechanism; 71-third transfer assembly; 72-waste film recovery box. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] It should be noted that in the description of this utility model, the terms "connection" and "installation" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; direct connection or connection through an intermediate medium; mechanical connection or electrical connection. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0045] The utility model provides a battery integrated detection device, referring to Figure 1 The device includes a feeding mechanism 1, a separation mechanism 2, a material conveying line 3 and a detection mechanism 4, wherein:

[0046] The feeding mechanism 1 is used to transport the material storage box, in which materials and release paper are placed in alternating layers;

[0047] The separation mechanism 2 is used to separate the material and the release paper in the storage box and place the material on the material conveying line 3;

[0048] The material conveying line 3 is used to convey the material to the detection mechanism 4;

[0049] The detection mechanism 4 is used to perform performance and appearance detection on the material.

[0050] It should be noted that the material in this embodiment refers to the semi-finished battery cell after film processing.

[0051] The working process of the above-mentioned device is as follows: first, a storage box containing materials and isolation paper is manually placed on the feed end of the loading mechanism 1; then, the loading mechanism 1 transports the storage box to the separation mechanism 2, and the separation mechanism 2 takes out the materials in the storage box and places them on the material conveying line 3. The separation mechanism 2 also places the isolation paper in the set area; then, the material conveying line 3 transports the materials to the detection mechanism 4, and the detection mechanism 4 performs performance and appearance inspections on the materials, and determines whether the materials are qualified based on the inspection results of the detection mechanism 4.

[0052] The battery cell integrated detection device provided in this application can automatically perform steps such as separation of materials and isolation paper, membrane transportation, and membrane detection. It has a high degree of automation, reduces manual workload, and improves the detection accuracy and efficiency of the membrane.

[0053] In this embodiment, two material conveying lines 3 are provided, and the two material conveying lines 3 are distributed in parallel; accordingly, two feeding mechanisms 1 are provided, and are respectively located at the ends of the two material conveying lines 3. The two material conveying lines 3 can further improve the detection efficiency.

[0054] Reference Figure 2 The separation mechanism 2 includes a first transfer assembly 21, and the first transfer assembly 21 includes:

[0055] The first suction cup structure 211 is used to suck materials or release paper;

[0056] The first driving structure 212 is used to drive the first suction cup structure 211 to move in the space.

[0057] Specifically, the loading mechanism 1 is located on one side of the material conveying line 3 , and the first suction cup structure 211 can move between the loading mechanism 1 and above the material conveying line 3 under the drive of the first driving structure 212 ; the first suction cup structure 211 includes several suction cups.

[0058] During operation, a material storage box is first placed manually on the feed end of the loading mechanism 1, which conveys the material storage box to the separation mechanism 2. Next, the first drive mechanism 212 drives the first suction cup structure 211 into the material storage box, which uses the suction cups to separately suck up the material and release paper in the storage box. The material is then placed on the material conveyor line 3, and the release paper is placed in a designated area. This process achieves the purpose of separating the material and release paper.

[0059] Optionally, the first driving structure 212 is a multi-degree-of-freedom robotic arm or a three-axis driving structure.

[0060] Figure 2 In the illustrated embodiment, the first drive structure 212 is specifically a three-axis drive structure, comprising an X-axis drive module, a Y-axis drive module slidably mounted on the X-axis drive module, and a Z-axis drive module slidably mounted on the Y-axis drive module. The first suction cup structure 211 is fixedly mounted on the power output end of the Z-axis drive module. The X-axis drive module, the Y-axis drive module, and the Z-axis drive module can drive the first suction cup structure 211 to move in any direction.

[0061] In this embodiment, there are two first suction cup structures 211, one for sucking material, and the other for sucking release paper. The two first suction cup structures 211 can simultaneously suck material and release paper, reducing the number of material removals and improving the separation efficiency of the material and release paper.

[0062] Reference Figure 3 The separation mechanism 2 also includes a waste paper recycling box 22. The waste paper recycling box 22 and the material conveying line 3 are respectively located on opposite sides of the feeding mechanism 1. The first transfer component 21 can place the material and isolation paper in the storage box on the material conveying line 3 and in the waste paper recycling box 22 respectively.

[0063] In this embodiment, two material conveying lines 3 are provided; accordingly, two separation mechanisms 2 are provided, and are respectively located at the ends of the two material conveying lines 3 .

[0064] continue Figure 3 The detection mechanism 4 includes a square resistance detection module 41 and / or a spectroscopic ellipsometer 42 and / or a laser ellipsometer 43 and / or a PL detection module 44 and / or an AOI detection module 45.

[0065] In this embodiment, the square resistance detection module 41 , the spectroscopic ellipsometer 42 , the laser ellipsometer 43 , the PL detection module 44 and the AOI detection module 45 are sequentially distributed along the conveying direction of the material conveying line 3 .

[0066] Among them, the square resistance detection module 41 is used to detect the square resistance of the material;

[0067] The spectroscopic ellipsometer 42 is used to detect the film thickness and refractive index on the back side of the material;

[0068] The laser ellipsometer 43 is used to detect the film thickness and refractive index of the front side of the material;

[0069] The PL detection module 44 is used to perform photoluminescence detection on the material. Its detection principle is: using a laser of a specific wavelength as an excitation light source to make the material release near-infrared light, then using a highly sensitive and high-resolution camera to sense and image the light. The image is then analyzed and processed by software to detect whether the cell has hidden cracks, fragments, cold solder joints, broken grids, etc.

[0070] The AOI inspection module 45 is used to perform automatic optical inspection on the material. The inspection principle is: the material is automatically scanned by a camera to collect an image of the material, and then the image is analyzed and processed by software to detect defects on the battery cell.

[0071] In this embodiment, the detection mechanism 4 can link with the main control system to upload, record and judge the data. The main control system can form an SPC chart to statistically analyze the CPK performance based on the uploaded data of the square resistance detection module 41, the spectral ellipsometer 42 and the laser ellipsometer 43, thereby consolidating the basis for analysis and improvement and providing data support for material sorting.

[0072] In the above structure, the square resistance detection module 41 , the spectroscopic ellipsometer 42 , the laser ellipsometer 43 , the PL detection module 44 and the AOI detection module 45 are all existing technologies and are not described in detail here.

[0073] On the basis of the above structure, the square resistance detection module 41, the spectroscopic ellipsometer 42 and the laser ellipsometer 43 are arranged on one side of the material conveying line 3;

[0074] The PL detection module 44 and the AOI detection module 45 are arranged above and / or below the material conveying line 3 .

[0075] Furthermore, the battery cell integrated detection device also includes a second transfer mechanism 5 , which is set above the material conveying line 3 and is used to realize the transfer of materials between the material conveying line 3 and the detection mechanism 4 .

[0076] In this embodiment, multiple second transfer mechanisms 5 are provided and sequentially distributed along the conveying direction of the material conveying line 3. A second transfer mechanism 5 is provided near each of the square resistance detection module 41, the spectroscopic ellipsometer 42, and the laser ellipsometer 43. The second transfer mechanisms 5 enable material to be transferred between the material conveying line 3 and the square resistance detection module 41, between the material conveying line 3 and the spectroscopic ellipsometer 42, and between the material conveying line 3 and the laser ellipsometer 43.

[0077] In this embodiment, the second transfer mechanism 5 includes:

[0078] A second suction cup assembly, for sucking materials;

[0079] The second driving assembly is used to drive the second suction cup assembly to move in the space.

[0080] On the basis of the above structure, the second transfer mechanism 5 includes two groups of second suction cup assemblies, and the two groups of second suction cup assemblies are respectively used to suck materials on the two material conveying lines 3.

[0081] The structure of the second transfer mechanism 5 is similar to that of the first transfer assembly 21 and will not be repeated here.

[0082] Furthermore, the cell integration detection device also includes a sorting mechanism 6 arranged downstream of the detection mechanism 4. The sorting mechanism 6 includes several sorting conveyor lines 61. The material on the material conveyor line 3 can be selectively conveyed to one of the sorting conveyor lines 61.

[0083] After the material inspection is completed, the material conveying line 3 conveys the material to the sorting mechanism 6, and the products with different square resistance ranges and different film thickness ranges are graded. The materials of different grades are conveyed to different sorting conveying lines 61 to match different processes for downstream transmission.

[0084] In this embodiment, three sorting conveying lines 61 are respectively provided on the side of the two material conveying lines 3 facing away from each other, that is, six sorting conveying lines 61 are provided in this embodiment, which can classify the materials into six grades of products.

[0085] On the basis of the above structure, a second transfer mechanism 5 is provided near the sorting mechanism 6 , and the second transfer mechanism 5 can transfer the material of the material conveying line 3 to one of the sorting conveying lines 61 .

[0086] Continue to refer to Figure 3 The integrated cell inspection device further includes a cell rejection mechanism 7 for rejecting unqualified material from the material conveyor line 3. In this embodiment, two cell rejection mechanisms 7 are provided, one located near the PL inspection module 44 and the other near the AOI inspection module 45. These two cell rejection mechanisms 7 are used to reject unqualified material from the PL inspection module 44 and the other near the AOI inspection module 45, respectively.

[0087] Furthermore, the film rejection mechanism 7 includes a third transfer assembly 71 and a waste film recovery bin 72. The third transfer assembly 71 includes a third suction cup structure and a third transfer structure for moving the third suction cup structure within a space. When the PL inspection module 44 or the AOI inspection module 45 detects unqualified material, the third transfer assembly 71 absorbs the unqualified material and transfers it to the waste film recovery bin 72, thereby eliminating and recovering the waste film.

[0088] The structure of the sheet picking mechanism 7 is similar to that of the separating mechanism 2 and will not be repeated here.

[0089] In this embodiment, the piece picking mechanism 7 also includes two third suction cup structures, and the two third suction cup structures are respectively used to suck materials on the two material conveying lines 3.

[0090] In this embodiment, the loading mechanism 1 , the material conveying line 3 and the sorting conveying line 61 may all be belt conveyors.

[0091] Reference Figure 4 and Figure 5 The detection method using the battery cell integrated detection device provided in this embodiment includes the following steps:

[0092] S1: Material loading:

[0093] Manually place the storage box containing the membrane and release paper on the feeding end of the feeding mechanism 1, and the feeding mechanism 1 transports the storage box to the separation mechanism 2;

[0094] S2: Separation membrane and release paper:

[0095] The first transfer assembly 21 places the film in the storage box on the material conveying line 3, and places the isolation paper in the storage box into the waste paper recycling box 22;

[0096] S3: Diaphragm detection, including:

[0097] S31: The material conveying line 3 conveys the diaphragm to the vicinity of the square resistance detection module 41, and the second transfer mechanism 5 transfers the diaphragm to the detection position of the square resistance detection module 41, and the square resistance detection module 41 detects the square resistance of the diaphragm;

[0098] After the test is completed, the second transfer mechanism 5 puts the membrane back onto the material conveying line 3;

[0099] S32: The material conveying line 3 conveys the membrane to the vicinity of the spectroscopic ellipsometer 42, and the second transfer mechanism 5 transfers the membrane to the detection position of the spectroscopic ellipsometer 42. The spectroscopic ellipsometer 42 detects the film thickness and refractive index on the back side of the membrane;

[0100] After the test is completed, the second transfer mechanism 5 puts the membrane back onto the material conveying line 3;

[0101] S33: The material conveying line 3 conveys the membrane to the vicinity of the laser ellipsometer 43, and the second transfer mechanism 5 transfers the membrane to the detection position of the laser ellipsometer 43. The laser ellipsometer 43 detects the film thickness and refractive index of the front side of the membrane;

[0102] After the test is completed, the second transfer mechanism 5 puts the membrane back onto the material conveying line 3;

[0103] S34: The material conveying line 3 conveys the membrane to the detection position of the PL detection module 44, and the PL detection module 44 performs photoluminescence detection on the membrane;

[0104] According to the detection results of the PL detection module 44, unqualified membranes are rejected by the membrane rejection mechanism 7, and qualified membranes are transported by the material conveying line 3 to the detection position of the AOI detection module 45;

[0105] S35: The material conveying line 3 conveys the diaphragm to the inspection position of the AOI inspection module 45, and the diaphragm is subjected to automatic optical inspection by the AOI inspection module 45;

[0106] According to the detection results of the AOI detection module 45, unqualified membranes are removed by the membrane removal mechanism 7, and qualified membranes are transported to the sorting mechanism 6 by the material conveying line 3;

[0107] S4: Sorting and downloading:

[0108] According to the detection results of the square resistance detection module 41 , the spectral ellipsometer 42 and the laser ellipsometer 43 , the membranes with different square resistance ranges and different film thickness ranges are divided into grades, and the membranes with different grades are transferred down by different sorting conveyor lines 61 .

[0109] As described above, the integrated cell inspection device provided in this embodiment can automate steps such as separator paper separation and recovery, membrane inspection, waste sheet removal, and sorting and transferring. This high degree of automation reduces manual workload and improves membrane inspection accuracy and efficiency. Furthermore, the device can be linked to the main control system for data upload, recording, and judgment. The main control system can generate SPC charts to statistically analyze CPK performance, thereby ensuring inspection accuracy and timely data decision-making. This facilitates technicians in trimming and improving membranes and provides visual data support for their work.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery cell integrated detection device, characterized in that, The invention comprises a feeding mechanism (1), a separation mechanism (2), a material conveying line (3) and a detection mechanism (4), wherein: The feeding mechanism (1) is used to convey a material storage box, in which materials and release paper arranged alternately in layers are placed; The separation mechanism (2) is used to separate the material and the release paper in the storage box and place the material on the material conveying line (3); The material conveying line (3) is used to convey the material to the detection mechanism (4); The detection mechanism (4) is used to perform performance and appearance detection on the material.

2. The battery cell integrated detection device according to claim 1, characterized in that: The separation mechanism (2) comprises a first transfer assembly (21), wherein the first transfer assembly (21) comprises: A first suction cup structure (211) for sucking the material or the release paper; The first driving structure (212) is used to drive the first suction cup structure (211) to move in the space.

3. The battery cell integrated detection device according to claim 1, characterized in that: The detection mechanism (4) includes a square resistance detection module (41) and / or a spectroscopic ellipsometer (42) and / or a laser ellipsometer (43) and / or a PL detection module (44) and / or an AOI detection module (45).

4. The battery cell integrated detection device according to claim 3, characterized in that: The square resistance detection module (41), the spectroscopic ellipsometer (42), the laser ellipsometer (43), the PL detection module (44), and the AOI detection module (45) are sequentially distributed along the conveying direction of the material conveying line (3).

5. The battery cell integrated detection device according to claim 3, characterized in that: The square resistance detection module (41), the spectroscopic ellipsometer (42), and the laser ellipsometer (43) are arranged on one side of the material conveying line (3); The PL detection module (44) and the AOI detection module (45) are arranged above and / or below the material conveying line (3).

6. The battery cell integrated detection device according to claim 1, characterized in that: It also includes a second transfer mechanism (5), which is installed above the material conveying line (3) and is used to transfer the material between the material conveying line (3) and the detection mechanism (4).

7. The battery cell integrated detection device according to claim 6, characterized in that: The second transfer mechanism (5) comprises: a second suction cup assembly, for sucking the material; The second driving assembly is used to drive the second suction cup assembly to move in the space.

8. The battery cell integrated detection device according to claim 1, characterized in that: It also includes a sorting mechanism (6) arranged downstream of the detection mechanism (4), and the sorting mechanism (6) includes a plurality of sorting conveying lines (61). The material on the material conveying line (3) can be selectively conveyed to one of the sorting conveying lines (61).

9. The battery cell integrated detection device according to any one of claims 1 to 8, characterized in that: The material conveying lines (3) are provided in two numbers, and the two material conveying lines (3) are distributed in parallel; The feeding mechanisms (1) are provided in two numbers and are respectively located at the ends of the two material conveying lines (3).

10. The battery cell integrated detection device according to any one of claims 1 to 8, characterized in that: It also includes a piece-removing mechanism (7), which is used to remove unqualified materials on the material conveying line (3).

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