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Photovoltaic assembly adopting pouring-sealant-type wire connection box

A photovoltaic module and junction box technology, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve problems such as unacceptable, achieve high protection level, high thermal conductivity, and reduce raw material consumption

Inactive Publication Date: 2013-10-23
CEEG SHANGHAI SOLAR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the limitation of heat sink, junction box raw materials, silica gel, sealing gasket, packaging and transportation costs, it is quite difficult to optimize the heat dissipation and sealing performance of junction box to reduce the failure probability of solar cell modules through the above two points, and it is not easy to be used side accepted

Method used

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  • Photovoltaic assembly adopting pouring-sealant-type wire connection box

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Embodiment

[0020] Such as figure 1 As shown, a photovoltaic module using a potting glue type junction box includes a solar cell laminate 1 , a sealant 2 and a junction box 3 . First, the junction box 3 is bonded to the back of the solar cell laminate 1 with a sealant. After bonding and fixing, the junction box 3 is filled with potting glue for sealing, and then cooled and solidified at room temperature.

[0021] Wherein, the solar cell laminate 1 includes ultra-clear tempered glass, crystalline silicon cell, EVA film and back plate which are stacked in sequence, and the ultra-clear tempered glass, crystalline silicon cell, EVA film and back plate pass through the high-temperature layer Pressed into a solar cell laminate, the sealant 2 is a deketoxime type silica gel.

[0022] The heat in the junction box is exported through colloid, which has higher thermal conductivity than air. The protection level of the whole product can reach IP67 at least, which is higher than IP65 of the convent...

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Abstract

The invention relates to a photovoltaic assembly adopting a pouring-sealant-type wire connection box. The photovoltaic assembly includes a solar-cell laminated piece, sealant and a wire connection box. The wire connection box is bonded on a back face of the solar-cell laminated piece through the sealant. The pouring sealant is encapsulated in the wire connection box. Compared with the prior art, the photovoltaic assembly adopting the pouring-sealant-type wire connection box has the advantages of being small in size, and great in heat radiation and airtightness and the like.

Description

technical field [0001] The invention relates to a solar photovoltaic module, in particular to a photovoltaic module using a potting glue type junction box. Background technique [0002] The main function of the junction box is to connect and protect the crystalline silicon solar cell components, and at the same time conduct the current generated by the cell components for users to use, providing users with safe, fast and reliable connections. It is an integral part of solar photovoltaic modules. At present, most of the failure cases of crystalline silicon solar cell components are caused by the failure of the junction box. The failure of the junction box can be roughly divided into two categories: the failure of sealing performance and the failure of heat dissipation performance. Therefore, whether the failure of the junction box can be effectively solved has become the main way to reduce the failure of components. The heat dissipation performance of the traditional juncti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048
CPCY02E10/50
Inventor 张军涛宫鹏钱科颖张荣华
Owner CEEG SHANGHAI SOLAR SCI & TECH