Flexible solar cell array confluence production process method and flexible solar cell array

Abstract

The invention relates to a flexible solar cell array confluence production process method and a flexible solar cell array, and the method comprises the following steps: S1, laying FPC cables into corresponding lines according to the confluence demands of the solar cell array, and reserving corresponding bonding pads; s2, the FPC cable is manufactured at a preset position in advance in the substrate preparation process; s3, in a solar cell array pasting link, pasting the solar cell string at a corresponding position, and directly welding an end-to-end interconnection sheet of the solar cell string on the reserved bonding pad; and S4, reserving an isolation diode bonding pad at the positive electrode output position of the solar cell module, and reserving a bonding pad at the corresponding position for interconnection. The flexible solar cell array confluence production process method has the advantages that the FPC flexible cable is used for replacing a braided cable to bear the confluence function of the solar cell array, the solar cell array production link is avoided, the bonding and welding treatment of the braided cable is avoided, the automation of the welding of the solar cell string and the FPC cable bonding pad is easier to realize, and the production efficiency is improved. Therefore, the batch production efficiency of the solar cell array is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible solar cell array production, and more specifically to a flexible solar cell array confluence production process method and a flexible solar cell array. Background Art

[0002] Compared with rigid solar wings, foldable and compact solar wings have the advantages of small volume and high power-to-weight ratio. At the same time, foldable and compact solar wings complete the convergence within the battery array, without the need to lead the convergence cable through the substrate to the back wiring, which is conducive to manufacturing and the product design is more in line with the needs of mass production.

[0003] In the past, foldable and compact solar arrays used braided cables to complete the convergence within the array surface. Braided cables have good elasticity and weldability, which can meet the use requirements of space solar arrays. However, braided cables are labor-intensive and have low production efficiency during production.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a flexible solar cell array convergence production process method and a flexible solar cell array. The flexible solar cell array convergence production process method utilizes FPC flexible cables to replace braided cables to undertake the convergence function of the solar cell array, avoiding the production links of the solar cell array, the pasting and welding processing of the braided cables, and the welding of the solar cell strings and the FPC cable pads is easier to automate, thereby improving the batch production efficiency of the solar cell array.

[0006] The present invention provides a flexible solar cell array busbar production process, comprising the following steps:

[0007] S1: According to the current convergence requirements of the solar array, lay out the FPC cables into corresponding lines and reserve corresponding pads;

[0008] S2: Pre-fabricate the FPC cable at a predetermined position during the substrate preparation process;

[0009] S3: In the solar cell array placement stage, the solar cell strings are pasted at corresponding positions, and the head and tail interconnection sheets of the solar cell strings are directly welded to the reserved welding pads;

[0010] S4: At the positive output position of the solar cell module, reserve an isolation diode pad and reserve pads at the corresponding position for interconnection.

[0011] The present invention also provides a flexible solar cell array, which is formed by the flexible solar cell array confluence production process method.

[0012] The flexible solar cell array convergence production process method provided by the present invention designs an FPC flexible cable into a required convergence circuit in order to improve the production efficiency of the solar cell array from cell strings to assembly into a solar cell array. In the substrate preparation link, the FPC flexible cable is pre-fabricated at a corresponding position. In the cell circuit production link, the cell string is directly pasted on the substrate, and the head-to-tail welding convergence is performed using the reserved welding pads of the FPC cable, thereby replacing the function of a part of the braided cable and improving the automation rate of the solar cell array production. The present invention uses the FPC flexible cable to replace the braided cable to assume the convergence function of the solar cell array, avoiding the pasting and welding processing of the braided cable in the solar cell array production link, and the welding of the solar cell string and the FPC cable welding pad is easier to realize automation, thereby improving the batch production efficiency of the solar cell array. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the process flow of a flexible solar cell array busbar production process provided by an embodiment of the present invention.

[0014] Figure 2 for Figure 1 A schematic diagram of the structure of a flexible solar cell array provided in an embodiment of the present invention.

[0015] Figure 3 for Figure 1 Another structural schematic diagram of the flexible solar cell array provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0017] The terms "first", "second", "third", "fourth" and the like in the description and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence.

[0018] Example 1

[0019] Figure 1 A schematic diagram of a process flow of a flexible solar cell array busbar production method provided by an embodiment of the present invention, Figure 2 for Figure 1 A schematic diagram of the structure of a flexible solar cell array provided in an embodiment of the present invention, Figure 3 for Figure 1 Another structural schematic diagram of the flexible solar cell array provided by the embodiment of the present invention. Figure 1 , Figure 2 , Figure 3 The flexible solar cell array busbar production process provided by the embodiment of the present invention comprises the following steps:

[0020] S1: According to the current convergence requirements of the solar array, lay out the FPC cables into corresponding lines and reserve corresponding pads;

[0021] S2: Pre-fabricate the FPC cable at a predetermined position during the substrate preparation process;

[0022] S3: In the solar cell array placement stage, the solar cell strings are pasted at corresponding positions, and the head and tail interconnection sheets of the solar cell strings are directly welded to the reserved welding pads;

[0023] S4: At the positive output position of the solar cell module, reserve an isolation diode pad and reserve pads at the corresponding position for interconnection.

[0024] It should be noted that the flexible solar cell array convergence production process provided by the present invention designs the FPC flexible cable into the required convergence circuit in order to improve the production efficiency of the solar cell array from the battery string to the assembly into the solar cell array. In the substrate preparation link, it is pre-fabricated at the corresponding position. In the battery circuit production link, the battery string is directly pasted on the substrate, and the reserved welding pads of the FPC cable are used for the end-to-end welding convergence, replacing the function of a part of the braided cable, thereby improving the automation rate of solar cell array production. The present invention uses FPC flexible cables to replace braided cables to assume the convergence function of the solar cell array, avoiding the pasting and welding processing of the braided cable in the solar cell array production link, and the welding of the solar cell string and the FPC cable pads is easier to realize automation, thereby improving the batch production efficiency of the solar cell array.

[0025] The present invention also provides a flexible solar cell array, which is formed by the flexible solar cell array confluence production process method.

[0026] Based on the above description, it can be seen that the advantages of the present invention are:

[0027] 1. The flexible solar cell array busbar production process provided by the present invention is to improve the production efficiency of the solar cell array from the battery string to the assembly into the solar cell array, design the FPC flexible cable into the required busbar circuit, pre-fabricate it at the corresponding position in the substrate preparation link, directly paste the battery string on the substrate in the battery circuit production link, and use the reserved welding pad of the FPC cable to perform the head-to-tail welding busbar, replace the function of a part of the braided cable, and improve the automation rate of the solar cell array production;

[0028] 2. The flexible solar cell array convergence production process provided by the present invention utilizes FPC flexible cables to replace braided cables to undertake the convergence function of the solar cell array, avoiding the production links of the solar cell array, the pasting and welding processing of the braided cables, and the welding of the solar cell strings and the FPC cable pads is easier to automate, thereby improving the batch production efficiency of the solar cell array.

[0029] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A flexible solar cell array busbar production process, characterized in that: The following steps are involved: S1: According to the current convergence requirements of the solar array, lay out the FPC cables into corresponding lines and reserve corresponding pads; S2: Pre-fabricate the FPC cable at a predetermined position during the substrate preparation process; S3: In the solar cell array placement stage, the solar cell strings are pasted at corresponding positions, and the head and tail interconnection sheets of the solar cell strings are directly welded to the reserved welding pads; S4: At the positive output position of the solar cell module, reserve an isolation diode pad and reserve pads at the corresponding position for interconnection.

2. A flexible solar cell array, characterized in that: The flexible solar cell array is formed by the flexible solar cell array busbar production process method described in claim 1.

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