Solar cell and photovoltaic module integrated production line cell piece scheduling method

Abstract

A solar cell and photovoltaic module integrated production line cell piece scheduling method comprises the steps that when the remaining storage amount N1 does not reach a set line changing value, M1-specification cell pieces produced by a cell piece production line are conveyed to a module production line to be produced; and when the remaining storage amount N1 reaches a set line changing value, the battery pieces of the M2 specification in the cache warehouse are conveyed to an assembly production line to be processed into assemblies, and meanwhile the battery pieces produced by the battery piece production line are conveyed to the cache warehouse. According to the battery piece production line, the battery pieces with the specifications different from those of the battery pieces of the assembly being produced are temporarily stored through the cache storage, when the specifications of the battery pieces produced by the battery piece production line are different, it can be guaranteed that all the battery pieces in the assembly are the same in specification, and continuous production of the battery pieces and the assembly is achieved.

Description

Technical Field

[0001] The present invention belongs to the field of photovoltaic technology, and in particular relates to a cell scheduling method for an integrated production line of solar cells and photovoltaic modules. Background Art

[0002] Solar energy is an inexhaustible clean energy source. A solar photovoltaic power generation system that utilizes solar energy to generate electricity is a photovoltaic power source or photovoltaic power station that directly converts solar energy into direct current (DC) or alternating current (AC) power. The most critical and core component of a solar photovoltaic power generation system is the photovoltaic module, which is composed of solar cells. Solar cells produced on a solar cell production line vary in specifications. To manufacture photovoltaic modules, multiple solar cells of the same specifications and quality must be connected in parallel or in series. Therefore, solar cells produced on a solar cell production line cannot be directly processed into modules. Existing technologies require the solar cells to be processed first, then inspected and sorted, and then the cells of the same specifications and quality are packaged and then processed into photovoltaic modules. This manufacturing method is not only inefficient, but also prevents the solar cells from being immediately processed into modules after production, making them susceptible to damage during packaging, storage, and transportation. Summary of the Invention

[0003] The purpose of the present invention is to provide a method for scheduling solar cells in an integrated production line of solar cells and photovoltaic modules, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a cell scheduling method for an integrated production line of solar cells and photovoltaic modules, comprising: a cell production line, a module production line and a cache warehouse, the scheduling method is as follows:

[0005] S1. Obtain the cell specification M1, the remaining storage capacity N1, and the number of cells of each specification in the cache storage produced on the current component production line;

[0006] S2. When the remaining storage capacity N1 does not reach the set value, the cells of specification M1 produced by the cell production line are transported to the module production line for production, and the cells of specification different from M1 produced by the cell production line are transported to the buffer storage;

[0007] S3. When the remaining storage volume N1 reaches the set value, the battery cells of size M2 in the buffer storage are transported to the module production line for processing into modules, and at the same time, the battery cells produced by the module production line are transported to the buffer storage;

[0008] S4. When the M2-size cells in the buffer storage are consumed, the cells in the buffer storage are transported to the component production line for processing into components;

[0009] S5. Repeat the above steps S2, S3 and S4.

[0010] On the basis of the above solution and as a preferred solution of the above solution, the consumption of battery cells by the component production line is greater than or equal to the output of the battery cell production line.

[0011] On the basis of the above solution and as a preferred solution of the above solution, the battery cells of specification M2 in step S3 are the battery cells with the largest number in the cache storage at this time.

[0012] On the basis of the above solution and as a preferred solution of the above solution, the battery cell production line is located in a battery production workshop, and the component production line is located in a component production workshop.

[0013] On the basis of the above solution and as a preferred solution of the above solution, a connecting passage is provided between the battery production workshop and the component production workshop, and a nitrogen air shower device is provided in the connecting passage.

[0014] On the basis of the above solution and as a preferred solution of the above solution, the cache storage is set up in the component production workshop.

[0015] On the basis of the above solution and as a preferred solution of the above solution, an automatic conveying track is provided in the connecting channel, and the battery production workshop and the component production workshop each use independent transportation tools to convey the battery cells.

[0016] On the basis of the above scheme and as a preferred scheme of the above scheme, the battery cell production line includes a detection device and a sorting device. The sorting device classifies the battery cells according to the sorting rules based on the detection results of the detection device. The sorting rules include the conversion efficiency of the battery cells, the open circuit voltage of the battery cells or the color of the battery cells.

[0017] On the basis of the above solution and as a preferred solution of the above solution, it also includes a packaging production line, which is connected to the sorting device.

[0018] On the basis of the above solution and as a preferred solution of the above solution, the component production line includes a printing device, a welding device and a laminating device.

[0019] The beneficial effects of the present invention are as follows: this invention adopts a cache warehouse to temporarily store battery cells of different specifications from the battery cells of the components being produced. When the specifications of the battery cells produced by the battery cell production line are different, it can ensure that all the battery cells in the components are battery cells of the same specifications, thereby realizing the continuous production of battery cells and components. There is no need to package the battery cells, which improves the production efficiency of the components and avoids damage to the battery cells during packaging and transportation. The battery production workshop and the component production workshop are connected by a connecting channel, and an automatic conveying track is provided in the connecting channel. The battery production workshop and the component production workshop each use independent transportation tools, which can prevent the air in the component production workshop from flowing into the battery production workshop and reducing the air quality of the battery production workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the structure of the integrated production line of solar cells and photovoltaic modules.

[0022] The reference numerals are as follows:

[0023] 1. Cell production line; 2. Testing device; 3. Sorting device; 4. Cache storage; 5. Module production line; 6. Transportation vehicle; 7. Cell production workshop; 8. Module production workshop; 9. Connecting channel; 10. Automatic conveyor track; 11. Packaging production line. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] As attached Figure 1 As shown, a cell scheduling method for an integrated production line of solar cells and photovoltaic modules includes: a cell production line 1, a module production line 5, and a cache warehouse 4. The scheduling method is as follows:

[0027] S1, obtaining the specification M1 of the battery cells produced on the current component production line 5, the remaining storage capacity N1 of the buffer storage 4, and the number of battery cells of each specification in the buffer storage 4;

[0028] S2. When the remaining storage volume N1 does not reach the set value, the cells of specification M1 produced by cell production line 1 are transported to module production line 5 for production, and the cells of specification different from M1 produced by cell production line 1 are transported to buffer storage 4;

[0029] S3. When the remaining storage capacity N1 reaches the set value, the cells of size M2 in the buffer storage 4 are transported to the module production line 5 for processing into modules, and the cells produced by the module production line 1 are transported to the buffer storage 4.

[0030] S4: When the M2 size cells in the buffer storage 4 are consumed, the cells in the buffer storage 4 are transported to the component production line 5 for processing into components;

[0031] S5. Repeat the above steps S2, S3 and S4.

[0032] This scheduling method uses a cache warehouse to temporarily store battery cells of different specifications from those of the components being produced. When the specifications of the battery cells produced by the battery production line are different, it can ensure that all battery cells in the component are of the same specification, realizing the continuous production of battery cells and components. There is no need to package the battery cells, which improves the production efficiency of the component and avoids damage to the battery cells during packaging and transportation.

[0033] The consumption of cells by the component production line 5 is greater than or equal to the output of the cell production line 1, ensuring that all cells produced by the cell production line can be consumed, thus avoiding a backlog of cells.

[0034] In step S3, the M2 size cells are the largest number of cells in the cache 4 at this time, which can reduce the frequency of line changes. Line changes refer to replacing cells of a certain size that are pre-processed into components on the component production line with cells of another size.

[0035] The cell production line 1 is located in a cell production workshop 7 , and the component production line 5 is located in a component production workshop 8 .

[0036] A connecting passage 9 is provided between the battery production workshop 7 and the component production workshop 8. A nitrogen air shower is installed in the connecting passage 9. The battery production workshop has higher air quality requirements than the component production workshop. Blowing nitrogen into the connecting passage through the nitrogen air shower can reduce the amount of air flowing from the component production workshop into the battery production workshop, thereby preventing degradation of the air quality in the battery production workshop.

[0037] The cache storage 4 is located in the component production workshop 8 .

[0038] An automatic conveyor track 10 is provided in the connecting passage 9. The battery production workshop 7 and the module production workshop 8 each use independent transport vehicles 6 to transport battery cells, ensuring that the air in the battery production workshop and the module production workshop are isolated. The transport vehicle can be an automatic guided vehicle or a track to transport battery cells.

[0039] The cell production line 1 includes a detection device 2 and a sorting device 3. The sorting device 3 classifies the cells according to the detection results of the detection device 2 according to sorting rules. The sorting rules include the conversion efficiency of the cell, the open circuit voltage of the cell, or the color of the cell. The cells of the same specification referred to in the present invention are determined according to certain classification rules, and the corresponding parameter values ​​are not required to be completely equal or identical. For example, the cells are divided into three types according to color: dark blue, blue, and light blue; the cells are divided into three types according to conversion efficiency: high efficiency, medium efficiency, and low efficiency; and the cells are divided into three types according to open circuit voltage: high voltage, medium voltage, and low voltage.

[0040] The system further comprises a packaging production line 11, which is connected to the sorting device 3. When the battery cells need to be packaged, the packaging production line can be set up to meet the packaging requirements.

[0041] The component production line 5 includes a printing device, a welding device and a laminating device.

[0042] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for scheduling cells in an integrated production line of solar cells and photovoltaic modules, characterized in that: include: The cell production line (1), the module production line (5) and the buffer storage (4) are scheduled as follows: S1, obtaining the specification M1 of the battery cells produced on the current component production line (5), the remaining storage capacity N1 of the cache storage (4), and the number of battery cells of each specification in the cache storage (4); S2. When the remaining storage amount N1 does not reach the set value, the battery cells of specification M1 produced by the battery cell production line (1) are transported to the module production line (5) for production, and the battery cells of specification different from M1 produced by the battery cell production line (1) are transported to the buffer storage (4); S3. When the remaining storage volume N1 reaches the set value, the battery cells of size M2 in the buffer storage (4) are transported to the module production line (5) for processing into modules, and at the same time, the battery cells produced by the module production line (1) are transported to the buffer storage (4); S4, when the M2 size battery cells in the cache storage (4) are consumed, the battery cells in the cache storage (4) are transported to the component production line (5) to be processed into components; S5. Repeat the above steps S2, S3 and S4.

2. The method for scheduling cells in an integrated production line of solar cells and photovoltaic modules according to claim 1, wherein: The consumption of battery cells by the component production line (5) is greater than or equal to the output of the battery cell production line (1).

3. The method for scheduling cells in an integrated production line of solar cells and photovoltaic modules according to claim 1, wherein: The battery cells of specification M2 in step S3 are the battery cells with the largest number in the cache warehouse (4) at this time.

4. The method for scheduling cells in an integrated production line of solar cells and photovoltaic modules according to claim 1, wherein: The cell production line (1) is located in a cell production workshop (7), and the component production line (5) is located in a component production workshop (8).

5. The method for scheduling cells in an integrated production line of solar cells and photovoltaic modules according to claim 4, characterized in that: A connecting passage (9) is provided between the battery production workshop (7) and the component production workshop (8), and a nitrogen air shower device is provided in the connecting passage (9).

6. The method for scheduling cells in an integrated production line of solar cells and photovoltaic modules according to claim 5, characterized in that: The cache storage (4) is located in the component production workshop (8).

7. The method for scheduling cells in an integrated production line of solar cells and photovoltaic modules according to claim 6, characterized in that: An automatic transport track (10) is provided in the connecting channel (9), and the battery production workshop (7) and the component production workshop (8) each use independent transport tools (6) to transport battery cells.

8. The method for scheduling cells in an integrated production line of solar cells and photovoltaic modules according to claim 1, wherein: The battery cell production line (1) comprises a detection device (2) and a sorting device (3); the sorting device (3) classifies the battery cells according to sorting rules based on the detection results of the detection device (2); the sorting rules include the conversion efficiency of the battery cells, the open circuit voltage of the battery cells, or the color of the battery cells.

9. The method for scheduling cells in an integrated production line of solar cells and photovoltaic modules according to claim 8, characterized in that: It also includes a packaging production line (11), which is connected to the sorting device (3).

10. The method for scheduling cells in an integrated production line of solar cells and photovoltaic modules according to claim 1, wherein: The component production line (5) comprises a printing device, a welding device and a laminating device.

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