Shingle photovoltaic module feeding system and shingle stacking system and working method therewith

Abstract

The present invention discloses a shingled photovoltaic module feeding system and a stacking system and working method having the same, which belong to the field of photovoltaic power generation technology. The shingled photovoltaic module feeding system includes a control system, a feeding module, a detection and positioning module and a dispensing module; it adopts a modular design, and the main functional modules can be configured according to actual production needs, with a high degree of automation, and the detection and positioning module improves the quality of the product. The stacking system includes a shingled photovoltaic module feeding system, a sheet laying system, a stacking platform and a control center; by adding stacking units, the production capacity of the system can be significantly improved without adding a whole set of shingling equipment, saving a lot of space and cost; all shingled photovoltaic module feeding systems are unified and standardized, which greatly reduces the hardware cost and software cost of the shingled photovoltaic module feeding system; the highly consistent design reduces the difficulty of maintenance and repair, and the cost of maintenance and repair is also reduced, realizing large-scale industrial production of shingled photovoltaic modules.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic power generation, and in particular relates to a shingled photovoltaic module feeding system and a stacking system and a working method thereof. Background Art

[0002] The current loading part of photovoltaic module manufacturing equipment has the following problems:

[0003] The production equipment of ordinary shingled photovoltaic modules all adopts the method of first assembling "longitudinal shingled battery units" and then combining and packaging multiple groups of "longitudinal shingled battery units" into shingled photovoltaic modules. Due to the limitation of this production step, ordinary shingled equipment can only perform "single-threaded" production, and its loading system is relatively simple in equipment component configuration. Generally, only one loading system can be configured on a set of shingled equipment. When the production line needs higher production capacity, due to the single and non-expandable nature of the equipment configuration, the number of equipment in the whole set can only be increased. The equipment configuration of the same production capacity requires a higher investment cost and occupies a larger plant area, which is not conducive to increasing the production capacity of the production line on a large scale.

[0004] The current full-series-parallel shingled photovoltaic module manufacturing equipment (experimental equipment) can realize the lateral overlap of "full-series-parallel photovoltaic modules" and achieve the purpose of fully automated production of new "full-series-parallel photovoltaic modules". However, the feeding system of the experimental equipment lacks components such as detection devices and battery cell transfer devices, and has many shortcomings in terms of yield and production speed. Summary of the invention

[0005] In order to solve the defects existing in the above-mentioned prior art, the purpose of the present invention is to provide a shingled photovoltaic module feeding system and a stacking system and working method having the same, which have reasonable structural design, high degree of automation, flexible configuration, can save costs and occupied space, improve production capacity, and realize large-scale industrial production of shingled photovoltaic modules.

[0006] The present invention is achieved through the following technical solutions:

[0007] The invention discloses a shingled photovoltaic module feeding system, comprising a control system, a feeding module, a detection and positioning module and a glue dispensing module; a battery cell transport device is arranged between the feeding module, the detection and positioning module and the glue dispensing module; the detection and positioning module, the glue dispensing module and the battery cell transport device are all connected to the control system.

[0008] Preferably, the control system, feeding module, detection and positioning module and dispensing module are integrated in a cabinet, an indicator light is provided above the cabinet, a touch screen and an operation panel are provided on the side of the cabinet, and the touch screen, operation panel and indicator light are all connected to the control system.

[0009] Preferably, the battery cell transport device is a robotic arm with an adsorption device or a high-speed robotic arm with an adsorption device.

[0010] Further preferably, the adsorption device is a vacuum suction cup.

[0011] Preferably, the detection and positioning module comprises a visual detection device and a positioning device, and both the visual detection device and the positioning device are connected to the control system.

[0012] Preferably, the loading module comprises a battery cell box with a blowing device.

[0013] Preferably, the dispensing module includes a multi-directional jetting piezoelectric dispensing valve.

[0014] The present invention discloses a stacking system, comprising the above-mentioned shingled photovoltaic module feeding system, the sheet laying system, the stacking platform and the control center; two sets of shingled photovoltaic module feeding systems and one set of sheet laying system constitute a stacking unit, the two sets of shingled photovoltaic module feeding systems are respectively arranged on both sides of the stacking platform, and the sheet laying system is arranged above the stacking platform between the two sets of shingled photovoltaic module feeding systems; the stacking platform comprises a driving motor and a temperature control device, and a plurality of stacking units are arranged in the moving direction of the stacking platform; the sheet laying system, the driving motor, the temperature control device and the control systems of the shingled photovoltaic module feeding systems in all the stacking units are all connected to the control center.

[0015] The present invention discloses a working method of the above lamination system, comprising:

[0016] The pre-cut cell sheets are placed in the loading module, and the control system controls the cell sheet transfer device to transfer the cell sheets to the detection and positioning module for detection and positioning. Qualified cell sheets are then transferred to the glue dispensing module via the cell sheet transfer device for glue dispensing. The cell sheets that have been glued in the two shingled photovoltaic module feeding systems of a stacking unit are laid out in the sheet laying system in turn. The control center controls the sheet laying system to cooperate with the stacking platform. Several stacking units work together to stack the cells one by one and row by row. The temperature control device dries and solidifies the stacked cell sheets, and the drive motor drives the stacking platform to move, eventually forming a cell group of a complete photovoltaic module.

[0017] Preferably, when a certain shingled photovoltaic module feeding system in a stacking unit is paused, the control center controls the remaining normal shingled photovoltaic module feeding systems to switch to a working mode that matches the number of normal shingled photovoltaic module feeding systems to continue stacking, and at the same time, the control center controls the shingle system in the stacking unit to work only with another normally working shingled photovoltaic module feeding system; when the paused shingled photovoltaic module feeding system returns to normal, the entire stacking system returns to the previous working mode to continue stacking.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] The present invention discloses a shingled photovoltaic module feeding system, comprising a control system, a feeding module, a detection and positioning module, a cell transfer device and a glue dispensing module; a modular design is adopted, and the main functional modules can be configured according to actual production needs. The control system controls the cell transfer device to transfer the cells between the feeding module, the detection and positioning module and the glue dispensing module, and the automation degree is high. The detection and positioning module improves the quality of the product.

[0020] Furthermore, the control system, feeding module, detection and positioning module and dispensing module are integrated in the cabinet, which can save space and reduce environmental impact; the indicator light can indicate the working status of the system, which is convenient for staff to inspect and manage; the touch screen and operation panel can facilitate staff to operate.

[0021] Furthermore, the battery cell transfer device is a robotic arm with an adsorption device or a high-speed robotic arm with an adsorption device, which has accurate positioning and stable operation, and can greatly improve the production rate.

[0022] Furthermore, the adsorption device adopts a vacuum suction cup, which is low in cost, pollution-free, and will not damage the battery cell.

[0023] Furthermore, the loading module adopts a battery cell box with a blowing device, which can well separate the battery cells and prevent adhesion.

[0024] Furthermore, the multi-directional jetting piezoelectric dispensing valve is compatible with different process requirements.

[0025] The stacking system disclosed in the present invention can significantly improve the production capacity of the system by adding stacking units without adding a whole set of stacking equipment, thus saving a lot of space and cost; the unification and standardization of all stacked photovoltaic module feeding systems in the stacking units has the benefit at the industrial level that, due to the high consistency of equipment specifications and component specifications, the hardware cost of the stacked photovoltaic module feeding system is greatly reduced, and the software cost hardly needs to be increased; in terms of equipment use and maintenance, the highly consistent design reduces the difficulty of maintenance and repair, and the cost of maintenance and repair is also reduced accordingly, thereby realizing large-scale industrial production of stacked photovoltaic modules.

[0026] The working method of the above-mentioned stacking system disclosed in the present invention is that the two shingled photovoltaic module feeding systems of a stacking unit share a set of sheet laying system, and the battery cells that have completed glue dispensing in the two shingled photovoltaic module feeding systems are fed into the sheet laying system in turn, and multiple stacking units work in coordination with a high degree of automation, which can not only ensure the quality of stacking, but also significantly improve production efficiency.

[0027] Furthermore, when a shingled photovoltaic module feeding system is suspended due to a fault or lack of materials, the other shingled photovoltaic module feeding systems can continue to work normally without causing the entire system to shut down, with high efficiency and strong stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of a stacking system equipped with a stacking photovoltaic module feeding system according to the present invention;

[0029] Figure 2 The overall structural schematic diagram of the stacking system of the present invention equipped with four stacking photovoltaic module feeding systems;

[0030] Figure 3 A schematic top view of the overall structure of a stacking system equipped with four stacking photovoltaic module feeding systems of the present invention;

[0031] Figure 4 It is a schematic diagram of the appearance structure of the shingled photovoltaic module feeding system of the present invention;

[0032] Figure 5 It is a schematic diagram of the internal structure of the shingled photovoltaic module feeding system of the present invention.

[0033] In the figure: 1 is the shingled photovoltaic module feeding system, 1-1 is the touch screen, 1-2 is the operation panel, 1-3 is the indicator light, 1-4 is the feeding module, 1-5 is the detection and positioning module, 1-6 is the dispensing module, 2 is the shingled photovoltaic module feeding system, and 3 is the stacking platform. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below with reference to the accompanying drawings and embodiments:

[0035] The shingled photovoltaic module feeding system of the present invention is as follows: Figure 5 , including a control system, a feeding module 1-4, a detection and positioning module 1-5 and a dispensing module 1-6; a cell transfer device is provided between the feeding module 1-4, the detection and positioning module 1-5 and the dispensing module 1-6, and the cell transfer device can use a mechanical arm with an adsorption device or a high-speed manipulator with an adsorption device, and the adsorption device is preferably a vacuum suction cup, which will not damage or contaminate the cell. The feeding module 1-4 uses a cell box with a blowing device, and the dispensing module 1-6 uses a multi-directional jet piezoelectric dispensing valve.

[0036] The detection and positioning module 1-5 includes a visual detection device and a positioning device, both of which are connected to the control system. The visual detection device can effectively identify various defects of the battery cell through the cooperation of CCD image sensor and visual recognition technology. The defect types include: battery cell gap, battery cell edge collapse, battery cell fragmentation, size deviation, bending, scratches, spots, watermarks, grid line defects, grid line misalignment, etc. When the battery cell is positioned by the positioning module, the visual recognition module starts working, and qualified battery cells are allowed to proceed to the next step of dispensing operation, and unqualified battery cells are removed. The detection and positioning module 1-5, the dispensing module 1-6 and the battery cell transport device are all connected to the control system.

[0037] The control system, feeding modules 1-4, detection and positioning modules 1-5 and dispensing modules 1-6 are integrated in the cabinet. Figure 4 Indicator lights 1-3 are arranged above the cabinet, and a touch screen 1-1 and an operation panel 1-2 are arranged on the side of the cabinet. The touch screen 1-1, the operation panel 1-2 and the indicator lights 1-3 are all connected to the control system.

[0038] The stacking system of the present invention comprises the above-mentioned shingled photovoltaic module feeding system 1, the sheet laying system 2, the stacking platform 3 and the control center; when the production capacity requirement is not high, a single set of shingled photovoltaic module feeding system 1 and the sheet laying system 2, the stacking platform 3 and the control center can meet the requirement, such as Figure 1 .

[0039] like Figure 2 , Figure 3 When the production capacity needs to be further increased, two sets of shingled photovoltaic module feeding systems 1 and one set of sheet laying system 2 are a stacking unit, the two sets of shingled photovoltaic module feeding systems 1 are respectively arranged on both sides of the stacking platform 3, and the sheet laying system 2 is arranged above the stacking platform 3 between the two sets of shingled photovoltaic module feeding systems 1; the stacking platform 3 includes a high-speed and high-precision drive motor and a temperature control device, and a number of stacking units are arranged in the moving direction of the stacking platform 3; the sheet laying system 2, the drive motor, the temperature control device and the control systems of the shingled photovoltaic module feeding system 1 in all stacking units are connected to the control center.

[0040] The working method of the above-mentioned lamination system comprises:

[0041] The cell (single crystal / multi-crystalline silicon wafer) is cut in the previous process, and the pre-cut cell is placed in the loading module 1-4. The control system controls the cell transfer device to transfer the cell to the detection and positioning module 1-5 for detection and positioning. The qualified cell is then transferred to the dispensing module 1-6 for dispensing via the cell transfer device. The cell that has been glued in the two shingled photovoltaic module feeding system 1 of a stacking unit is laid in the sheet laying system 2 in turn. The control center controls the sheet laying system 2 to cooperate with the stacking platform 3. Several stacking units work together to stack the cells one by one and row by row. The temperature control device dries and solidifies the stacked cell, and the drive motor drives the stacking platform 3 to move, finally forming a cell group of a whole photovoltaic module.

[0042] When a shingled photovoltaic module feeding system 1 in a stacking unit is suspended due to lack of materials or failure, the control center controls the remaining normal shingled photovoltaic module feeding systems 1 to switch to a working mode matching the number of normal shingled photovoltaic module feeding systems 1 to continue stacking (the position number of each shingled photovoltaic module feeding system 1 and the control program for the coordinated work of shingled photovoltaic module feeding systems 1 with different position numbers are set in the control center), and at the same time, the control center controls the shingled photovoltaic module distribution system 2 in the stacking unit to work only with another normally working shingled photovoltaic module feeding system 1; when the suspended shingled photovoltaic module feeding system 1 returns to normal, the entire stacking system returns to the previous working mode to continue stacking.

[0043] It should be noted that what is described in the embodiment is only a preferred implementation of the present invention. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A lamination system, characterized in that: The invention comprises a shingled photovoltaic module feeding system (1), a sheet laying system (2), a stacking platform (3) and a control center; two sets of shingled photovoltaic module feeding systems (1) and one set of sheet laying system (2) form a stacking unit, the two sets of shingled photovoltaic module feeding systems (1) are respectively arranged on both sides of the stacking platform (3), and the sheet laying system (2) is arranged above the stacking platform (3) between the two sets of shingled photovoltaic module feeding systems (1); the stacking platform (3) comprises a driving motor and a temperature control device, and a plurality of stacking units are arranged in the moving direction of the stacking platform (3); the sheet laying system (2), the driving motor, the temperature control device and the control systems of the shingled photovoltaic module feeding systems (1) in all the stacking units are connected to the control center; The shingled photovoltaic module feeding system (1) comprises a control system, a feeding module (1-4), a detection and positioning module (1-5) and a glue dispensing module (1-6); a cell transfer device is provided between the feeding module (1-4), the detection and positioning module (1-5) and the glue dispensing module (1-6); the detection and positioning module (1-5), the glue dispensing module (1-6) and the cell transfer device are all connected to the control system; A control system, a loading module (1-4), a detection and positioning module (1-5) and a dispensing module (1-6) are integrated in a cabinet, an indicator light (1-3) is provided above the cabinet, a touch screen (1-1) and an operation panel (1-2) are provided on the side of the cabinet, and the touch screen (1-1), the operation panel (1-2) and the indicator light (1-3) are all connected to the control system; The loading module (1-4) comprises a battery cell box with a blowing device.

2. The lamination system according to claim 1, characterized in that: The battery cell transfer device is a robotic arm with an adsorption device or a high-speed robotic arm with an adsorption device.

3. The lamination system according to claim 2, characterized in that: The adsorption device is a vacuum suction cup.

4. The lamination system according to claim 1, characterized in that: The detection and positioning module (1-5) comprises a visual detection device and a positioning device, and both the visual detection device and the positioning device are connected to the control system.

5. The lamination system according to claim 1, characterized in that: The dispensing module (1-6) includes a multi-directional jetting piezoelectric dispensing valve.

6. The working method of the lamination system according to any one of claims 1 to 5, characterized in that: include: The pre-cut cells are placed in a loading module (1-4), and a control system controls a cell transfer device to transfer the cells to a detection and positioning module (1-5) for detection and positioning. Qualified cells are then transferred to a glue dispensing module (1-6) via the cell transfer device for glue dispensing. Cells that have been glued in two stacked photovoltaic module loading systems (1) of a stacking unit are alternately laid in a sheet laying system (2). A control center controls the sheet laying system (2) to cooperate with a stacking platform (3). Several stacking units work together to stack cells one by one and row by row. A temperature control device dries and solidifies the stacked cells, and a drive motor drives the stacking platform (3) to move, thereby finally forming a cell group of a complete photovoltaic module.

7. The working method of the lamination system according to claim 6, characterized in that: When a certain shingled photovoltaic module feeding system (1) in a stacking unit is paused, the control center controls the remaining normal shingled photovoltaic module feeding systems (1) to switch to a working mode matching the number of normal shingled photovoltaic module feeding systems (1) to continue stacking, and at the same time, the control center controls the shingled photovoltaic module distribution system (2) in the stacking unit to work in coordination with another normally working shingled photovoltaic module feeding system (1); when the paused shingled photovoltaic module feeding system (1) returns to normal, the entire stacking system returns to the previous working mode to continue stacking.

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