Device for detecting sealing performance of silica gel for packaging solar modules

Abstract

The invention discloses a device for detecting the sealing performance of silica gel for packaging solar modules. The device comprises an experimental gas storage box, a circulating pressure pump, a pressure air chamber, a bond-line test frame, an airtight test chamber, a humidometer, a dust-loaded plate, an end face seal gasket and a fastener, wherein the humidometer is arranged in the airtight test chamber, and the dust-loaded plate is horizontally arranged at the bottom of the airtight test chamber; the bond-line test frame is arranged between the pressure air chamber and the airtight test chamber, and the bond-line test frame, the pressure air chamber and the airtight test chamber are fixedly connected by the end face seal gasket and the fastener; an output end of the circulating pressure pump is in closed connection with an air inlet of the pressure air chamber, and an air suction end of the circulating pressure pump is communicated with the experimental gas storage box; and the pressure of the cavity of the pressure air chamber ranges from (1.5*10<5>Pa) to (2.0*10<5>Pa). The device can be used for detecting the isolation performance of the silica gel (for packaging solar modules) to water vapor and dust in the air.

Description

Technical field: [0001] The invention relates to a detection device for a sealant used for packaging a solar cell module, in particular to a device for detecting the sealing performance of a silica gel used for packaging a solar cell module. Background technique: [0002] The solar cell module is composed of light-transmitting glass, EVA, solar cells, EVA and back sheet TPT. These materials are sequentially stacked from top to bottom, and then go through lamination, high temperature curing and cooling processes to form laminates of solar modules , and finally install an aluminum frame around it, and finally lead out the wires and install the junction box, which completes the production of the solar module. In solar cell modules, silicon cells are the core of power generation. Silicon cells are very fragile and must be packaged and sealed to prevent water vapor and dust in the air from corroding and reducing photoelectric conversion efficiency. At present, after the silicon ...

AI Technical Summary

Problems solved by technology

Although one-component room temperature vulcanized silicone rubber is convenient to use, because its vulcanization depends on the moisture in the atmosphere, the thickness of the vulcanized rubber is limited and can only be used in occasions that require a thickness of less than 6 mm.

Images