Photovoltaic module encapsulation system and photovoltaic module encapsulation method

A photovoltaic module packaging and photovoltaic module technology, which is applied in photovoltaic power generation, chemical instruments and methods, lamination devices, etc., can solve the problems of photovoltaic module performance not meeting the requirements, photovoltaic module generating cavities, and photovoltaic module yield decline, etc. , to achieve the effect of preventing cavities, reducing inconsistent cooling speed, and good edge quality

Active Publication Date: 2022-04-15
秦皇岛博硕光电设备股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this method is used to encapsulate photovoltaic modules with inconsistent upper and lower cover materials such as roof tile components, or to package photovoltaic modules with the same upper and lower cover materials but with a relatively large thickness difference, such as glass curtain wall components, the encapsulated photovoltaic The edge of the module is warped, so that the performance of the photovoltaic module cannot meet the requirements. In addition, there is another problem. The problem is that when the viscosity of the adhesive is relatively high, cavities will be generated on the edge of the photovoltaic module, which will reduce the yield rate of the photovoltaic module. decline

Method used

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  • Photovoltaic module encapsulation system and photovoltaic module encapsulation method
  • Photovoltaic module encapsulation system and photovoltaic module encapsulation method
  • Photovoltaic module encapsulation system and photovoltaic module encapsulation method

Examples

Experimental program
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Effect test

Embodiment 1

[0046] The photovoltaic module is a 100-watt module on the roof, modified PTU or poe is used as a binder, the upper cover is a 3.2mm thick glass plate, and the lower plate is a 2mm thick FRB (also called a fiber backboard).

[0047]The first step is vacuum heating and pressurization. The temperature of the heating table 1 of the laminator is 130-150°C. The upper box 1 and the lower box 1 are closed to vacuumize the upper chamber, the lower chamber and the lower chamber at the same time, and the vacuum degree is 80-120Pa. , the vacuuming time is 350-500 seconds, the flexible pressure member covers the surface of the photovoltaic module, pressurizes the photovoltaic module, and then fills the upper chamber with gas to heat and pressurize at the same time, the pressure is 0-0.05MPa, and the lower chamber is maintained Vacuumize, heat and press for 5-7 minutes, and then enter the hot press for curing, heating and pressing.

[0048] The second step, hot pressing curing glue joint ...

Embodiment 2

[0053] The photovoltaic module is a glass curtain wall module under the house, using PVB as a binder, the upper plate is made of 2.5mm thick glass, and the lower plate is made of 8mm thick glass.

[0054] In the first step, the temperature of the heating table of the laminator is 150±10°C, the vacuum degree is 80-120Pa, the vacuuming time is 3-5 minutes, and the upper chamber is filled with gas at a pressure of 0-0.05MPa. The pressing time is 5-7 minutes.

[0055] In the second step, the temperature of the heating workbench 2 is 160-170°C, and the compressed air is filled into the upper chamber 2, the pressure is 0.02-0.1Mpa, and the time for inflating, pressurizing and heating is 8-10 minutes.

[0056] In the third step, the vacuum degree is 0-0.08Mpa, the temperature of the upper cooling plate and the lower cooling plate is 13°C, and the vacuum cooling and pressing time is 7-10 minutes.

[0057] All the other are the same as embodiment 1

[0058] The following comparative ...

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Abstract

The object of the present invention is to solve the disadvantages of bubbles and warpage at the edge of the battery module when using the prior art photovoltaic module packaging method and packaging equipment to package the photovoltaic module with the same material for the upper cover and the lower cover, and to provide a A photovoltaic module encapsulation system and a photovoltaic module encapsulation method. The photovoltaic module encapsulation method includes a vacuum heating and pressurizing step, a pressurizing and curing step, and a pressurizing and cooling step. In the vacuum heating and pressurizing step and the pressurizing and curing step, flexible application is adopted. The pressing part is pressurized. In the pressurized curing step, after the cavity is closed, it is heated to the curing temperature of the adhesive material, and then the upper cavity is filled with compressed gas, so that the flexible pressure applying part is pressed against the upper surface of the photovoltaic module to exert pressure on the photovoltaic module. solidification; in the pressurized cooling step, the upper cooling plate and the lower cooling plate are used to pressurize and cool the photovoltaic module, and the packaging method and packaging system of the present invention can effectively reduce or prevent cavities and warping deformation at the edge.

Description

technical field [0001] The invention relates to photovoltaic module packaging equipment and a photovoltaic module packaging method. Background technique [0002] When making solar photovoltaic cells, it is necessary to package the smallest unit ----- the photovoltaic module. At present, the more conventional packaging method is to first vacuum hot press the photovoltaic module above the melting temperature of the adhesive layer, and then apply it to the adhesive layer. Layer curing temperature for vacuum hot-press curing, correspondingly, the equipment includes two vacuum laminators arranged front and back, each vacuum laminator includes an upper box and a lower box, the upper box and the lower box are closed to form a sealed chamber, There is a flexible pressure member in the sealed chamber. The flexible pressure member divides the sealed chamber of the vacuum laminator into an upper vacuum chamber and a lower vacuum chamber. The upper vacuum chamber is used to communicate ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B37/06B32B37/00B32B37/08B32B37/10B32B37/12H01L31/048H01L31/18
CPCB32B37/06B32B37/10B32B37/08B32B37/1207B32B37/003H01L31/048H01L31/1864B32B2037/1215B32B2309/68B32B2457/12Y02E10/50
Inventor 石磊路百超曹盼盼
Owner 秦皇岛博硕光电设备股份有限公司
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