A smart photovoltaic module multifunctional junction box

Abstract

The invention discloses an intelligent photovoltaic component multifunctional junction box which at least comprises a substrate module, a diode module and a cover plate module. The substrate module, the diode module and the cover plate module can be freely spliced and split. When the substrate module, the diode module and the cover plate module are integrally spliced, a diode insulating shell is arranged between a substrate insulating shell and a cover plate insulating shell, and all the conductive plugging connectors of the substrate module, the diode module and the cover plate module are enabled to be plugged in an adaptive manner so that a circuit structure capable of providing a power output protection function to a photovoltaic component can be formed by the electrical parts in the substrate module, the diode module and the cover plate module, and the substrate module, the diode module and the cover plate module are enabled to be stably spliced together. The junction box is easy to maintain, and maintenance manpower, material resource and time loss can be reduced so that operation and maintenance cost of a photovoltaic power station can be greatly reduced.

Description

technical field [0001] The invention relates to a multifunctional junction box of an intelligent photovoltaic module, which belongs to the technical field of solar battery modules. Background technique [0002] The solar module junction box is the direct part of the module performance output, generally composed of a box body, a box cover, a bypass diode set in the box body, a metal conductor, wires and cables, and cable connectors. Among them, the function of the bypass diode is that when the hot spot effect of the cell cannot generate electricity, it acts as a bypass, allowing the current generated by other cells to flow out of the diode, so that the solar power generation system continues to generate electricity, and will not be caused by a cell. The power generation circuit is blocked due to the problem. Except for the box cover, the traditional junction box is integrated as a whole. After connecting with the bus bar leading out of the module, it is fixed on the back of ...

AI Technical Summary

Problems solved by technology

[0003] With the continuous improvement of the power of photovoltaic power generation components in recent years, and the continuous improvement of the miniaturization requirements of the junction box based on cost considerations, the power dissipated by the bypass diode in the junction box of the installation and the module is increasing under the bypass working state. The operating temperature of the diode is getting higher and higher, and the life of the diode is greatly affected by working at a high temperature for a long time

In addition, because the external cables of the junction box are often dragged and plugged, and exposed to the outdoors, the cable interface is also prone to breakage or falling off.

These problems have nothing to do with the performance of the module itself, but will cause the output to be blocked and the power generation performance to be impaired

When this phenomenon occurs, we usually need to replace the entire module, which has a high cost of manpower and material resources, and the process of disassembly and transportation will also cause unnecessary damage to the module itself, which will bring cost losses to the maintenance of the power station and the module supplier.

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