Breathing type photovoltaic connecting box for building integrated photovoltaic (BIPV) photovoltaic assembly

Abstract

The invention relates to a breathing type photovoltaic connecting box for a building integrated photovoltaic (BIPV) photovoltaic assembly. The breathing type photovoltaic connecting box comprises a casing and is characterized in that at least one breathing hole directly contacted with the external air is positioned on the surface of the casing (7), a breathing film (6) is covered on each breathing hole to enable air to pass through freely and prevent liquid from passing through, at least one capillary tube access hole (4) is arranged on the surface of the casing close to the inside of the photovoltaic assembly, a capillary tube is arranged on each capillary tube access hole (4), one end of the capillary tube extends into the photovoltaic assembly, the other end of the capillary tube extends into the casing (7), and pressure of the two ends can be balanced. By means of the connecting box, the BIPV photovoltaic assembly and the inside of the breathing type photovoltaic connecting box can form microcirculation similar to the microcirculation principle in the bodies of living beings. Thus, pressure of a hollow layer in the BIPV photovoltaic assembly can be changed, and safety of the hollow layer of the BIPV photovoltaic assembly is improved when the BIPV photovoltaic assembly is applied to buildings.

Description

technical field [0001] The invention relates to a breathing type photovoltaic junction box for a BIPV (Building Integrated Photovoltaic) photovoltaic module. Background technique [0002] At present, in the solar photovoltaic cell module industry, although my country's equipment technology level lags behind developed countries, through the introduction of key production equipment, the technical performance of photovoltaic module products in domestic and foreign industries has maintained a national first-class level. But this does not mean that the product does not need to be improved. There are no more than two types of BIPV battery modules in the industry at home and abroad: one is ordinary dual-wave battery modules, and the other is hollow photovoltaic modules. [0003] Ordinary dual-wave battery modules are also called the first generation of BIPV battery modules, which use tempered glass instead of the back protection material of photovoltaic modules and are packaged wit...

AI Technical Summary

Problems solved by technology

However, since the outer glass of the hollow photovoltaic module is composed of photovoltaic modules, the photovoltaic module will generate a lot of heat during the power generation process. The heat cannot be discharged due to the hollow layer of the hollow photovoltaic module, and the accumulation of heat will cause the gas in the hollow layer to expand. In turn, it will lead to the rupture of the hollow photovoltaic module, and because the temperature is too high, it will directly affect the power generation efficiency of the photovoltaic cell

Therefore, the utilization and application of hollow photovoltaic modules are quite controversial

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