Hollow photovoltaic module and photovoltaic roof

By setting up multiple light scattering structures in the photovoltaic module, the incident light rays are diffused multiple times, and the problems of poor light transmission and uneven light rays in traditional photovoltaic modules are solved, achieving a softer and even indoor lighting effect.

CN222655670UActive Publication Date: 2025-03-21FAR EAST HENG FAI FACADE (ZHUHAI) LTD
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Patent Information

Application Number
CN202423118562.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-03-21
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

Traditional crystalline silicon photovoltaic modules have poor light transmission due to dense cell string arrangement, which easily produces blocky black spots in the sun, affecting the uniform distribution of indoor light and limiting their application value in the roof parts that require light transmission.

Method used

A hollow photovoltaic module is designed, including a layered first panel, a battery string and a second back panel, and a plurality of light scattering structures arranged on the back and back sides of the second back panel. By increasing the exit angle of light rays through primary and secondary diffusion, the dispersion of light sources and uniformity of light distribution is achieved.

Benefits of technology

Through the multiple diffusion of light, the generation of light spots is avoided, making the light softer, improving the comfort of indoor lighting, and achieving a more efficient and uniform indoor lighting effect.

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Abstract

The utility model provides a hollow photovoltaic module and a photovoltaic roof.The hollow photovoltaic module is installed above the roof and at least comprises a first panel, a battery string and a second backboard which are assembled in a stacked mode, each layer of structural component is provided with a front face and a back face, and the hollow photovoltaic module further sequentially comprises a first light scattering structure, a second light scattering structure and a third light scattering structure, the primary diffusion module is used for carrying out primary diffusion on incident light so as to increase the emergent angle of the incident light; and the second light scattering structure is arranged on one side of the back surface of the second back plate, and a certain distance is formed between the second light scattering structure and the second back plate to form a hollow layer for secondary diffusion of the incident light. According to the technical scheme, a plurality of light adjusting structures are additionally arranged on the basis of a traditional photovoltaic module, the incident light is diffused to increase the emergent angle of the light, dispersion of a light source is achieved, and the uniformity of light distribution is improved, so that the light is softer, light spots are prevented from being generated, and the service life of the photovoltaic module is prolonged. And a more efficient and uniform indoor lighting effect is realized.
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