Photovoltaic module hot pressing curing method and pressing equipment used for hot pressing curing

A photovoltaic module and curing method technology, applied in the field of pressing equipment, can solve the problems affecting the performance of photovoltaic modules, poor fluidity, quality defects, etc., and achieve the effects of not being easy to bend and deform, reducing edge cavities, and high viscosity

Active Publication Date: 2022-02-01
秦皇岛博硕光电设备股份有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The photovoltaic module packaging equipment and packaging method using the prior art structure, in order to remove the air bubbles in the photovoltaic module, vacuumize the photovoltaic module by vacuuming during the lamination process and curing process, but in the process of vacuumizing During the process, since the temperature of the photovoltaic module has reached the melting temperature of the adhesive layer after hot pressing, the adhesive at the edges and corners is easy to flow when the vacuum low-temperature hot pressing is used to squeeze out the air bubbles in the photovoltaic module. , the adhesive between the layers of the photovoltaic module is partially reduced, and because the adhesive used in some photovoltaic modules has high viscosity and poor fluidity, the reduced part of the adhesive is not easy to be replenished, forming a local cavity part, at the corners and edges of the module Cavitation occurs at the place, forming a foam-like structure, causing quality defects and affecting the performance of photovoltaic modules

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Photovoltaic module hot pressing curing method and pressing equipment used for hot pressing curing
  • Photovoltaic module hot pressing curing method and pressing equipment used for hot pressing curing
  • Photovoltaic module hot pressing curing method and pressing equipment used for hot pressing curing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The photovoltaic module is a 100-watt roof module, 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 known as a fiber backsheet).

[0029] The first step is vacuum lamination. 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. 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, then fills the upper cavity with gas to heat and pressurize at the same time, the pressure is 0-0.05MPa, and the lower cavity keeps pumping Vacuum, heat and press for 5-7 minutes, and then enter the heat press for curing, heat and press.

[0030] The second step, hot pressing curing glue joint

[0031] The temperature of the heating ...

Embodiment 2

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] All the other are the same as embodiment 1

[0040] The following comparative ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The purpose of the present invention is to solve the problem that the prior art photovoltaic module packaging method and packaging equipment are easy to produce cavities at the corners of the battery module when the viscosity of the adhesive is high when the photovoltaic module is packaged, so that the performance of the battery module is affected. Provide a The press equipment used for hot-press curing of photovoltaic modules and the hot-press curing method of photovoltaic modules adopt the following hot-press curing method of photovoltaic modules, the layered parts that have completed the vacuum heating and pressing step are transferred to the second lower chamber, and the curing chamber is closed Finally, fill compressed gas into the upper chamber 2, press the flexible pressure member against the upper surface of the photovoltaic module to heat and press the photovoltaic module to cure, adopt the method and equipment of the present invention to heat and pressurize the photovoltaic module to cure, in a non-vacuum state The lower chamber is filled with compressed gas, and the compressed gas exerts positive pressure on the flexible pressure member from above the flexible pressure member. When the photovoltaic module is under pressure, the adhesive moves slowly, which can reduce the side cavity and reduce the generation of holes. .

Description

technical field [0001] The invention relates to a hot-press curing method for a photovoltaic module and pressing equipment used for hot-press curing. Background technique [0002] When pressing layered components, especially encapsulating photovoltaic components, it is necessary to encapsulate the smallest unit, the photovoltaic component. At present, the conventional packaging method is to first vacuum hot press the photovoltaic component above the melting temperature of the adhesive layer. , and then carry out vacuum hot-press curing at the curing temperature of the adhesive layer. Correspondingly, the equipment includes two vacuum laminators arranged front and back, each vacuum laminator includes an upper box and a lower box, and the upper box and the lower box are closed to form The sealed chamber is provided with 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 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/048B32B37/12B32B37/10B32B37/06B32B37/08
CPCH01L31/048B32B37/12B32B37/1018B32B37/06B32B37/08Y02E10/50
Inventor 石磊路百超
Owner 秦皇岛博硕光电设备股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap